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December 29, 20O0
Bob Yost
Lambland Inc.
Rattler Ridge
16350 WCR 76
Eaton, CO 80615
COLORADO
•/J-s/RRP p.2
DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
1555 N 17TH AVE
GREELEY, CO 80631
WEBSITE: www.co.weld.co.us
ADMINISTRATION (970) 304-6410
FAX (970) 304-6412
PUBLIC HEALTH EDUCATION AND NURSING (970) 304-6420
FAX (970) 304-6416
ENVIRONMENTAL HEALTH SERVICES (970) 304-6415
FAX (970) 304-6411
Subject: Rattler Ridge Organic Recycling Facility - Fourth Quarter Inspection, 2000
Dear Mr. Yost:
On Tuesday, December 19, 2000, I inspected the Rattler Ridge Organic Recycling
Facility, located adjacent to the Coors Energy site on a private road, approximately four
miles north of 1-76 and five miles from the Town of Keenesburg, in Weld County. The
purpose of the inspection was to inspect and assess the facility's compliance with the
"Regulations Pertaining to Solid Waste Disposal Sites and Facilities" (the Regulations)
(6 CCR 1007-2) as promulgated by the Solid Waste Disposal Sites and Facilities Act,
Title 30, Article 20, part 1, C.R.S., as amended, and the development standards set
forth in Use by Special Review Permit #1285 (USR - 1285).
During this inspection, no violations of the development standards of USR-1285 were
found. However, wind blown debris was observed at the southeast portion of the
facility.
If you have any questions regarding this inspection, please contact me at (970) 304-
6415, extension 2220.
Sincerely,
•
�raJll JY' /J�4•YJ�7i//
Cindi Etcheverry
Environmental Specialist
Environmental Health Services
M:.EtchlwastelRattler Ridge Organic Recyclinglinsp1200.wpd
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cc: Roger Doak, Colorado Department of Public Health and Environment
Trevor Jiricek, Director, Weld County Environmental Health Services
• •
W1,I) Rattler Ridge Organic Recycling Fac 12/29/2000
Solid Waste - Correspondence - Inspection Report - Rattler Ridge
Organic Recycling Facility Fourth Quarter Inspection 2000
SW/1.2./717
n
SW/1.2./716
•-./ 1; 1
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11
11
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DOPHE 136
HAZARDOUS MATERIALS
S W_1.2 ._4009
HI III1 IH Iflhll ill Hill HIl ilU 1
BOX#
262
• •
STATE OF COLORADO
Bill Owens, Governor
Douglas H. Benevento, Executive Director
Dedicated to protecting and improving the health and environment of the people of Colorado
4300 Cherry Creek Dr. S.
Denver, Colorado 80246-1530
Phone (303) 692-2000
TDD Line (303) 691-7700
Located in Glendale, Colorado
http://www.cdphe.state.co.us
November 23, 2005
Todd Loose
A-1 Organics
16350 Weld County Road 75
Eaton, CO 80615
Laboratory Services Division
8100 Lowry Blvd.
Denver, Colorado 80230-6928
(303) 692-3090
RE: Routine Compliance Inspection — 2005
Rattler Ridge Composting
Dear Mr. Loose:
Colorado Department
of Public Health
and Environment
On October 27, 2005 the Colorado Department of Public Health and Environment's Hazardous Materials and Waste
Management Division (Division) conducted a routine inspection of the above referenced facility. The purpose of the
inspection was to assess the compliance of the facility with the requirements set forth in the Solid Wastes Disposal Sites ad
Facilities Act, 30-20-100, CRS, et seq. and with the regulations promulgated thereunder, 6 CCR 1007-2 (the Regulations).
Several areas of concern were identified during the inspection: 1) A large amount of windblown debris was observed on the
north side of the site and was concentrated near the entrance area, 2) a significant number of flies were observed in the area
of the four ASTs, and 3) records showing windrow turning data could not be located.'We request the aforementioned
operational items be corrected within 30 days of the date of this letter and a copy of the missing record be forwarded to our
office by December 18, 2005.
Enclosed is the spectio9,-'Report that provides a detailed description of my observation and discussions with the facility
representative.ff you kt"ave questions concerning this matter, feel free to contact me at 303.692.3437.
Sincerely,
i /�
Roger Doak, Geologist
Solid Waste Unit
Compliance Program
Enclosure
cc: Cindi Etcheverry, \Veld County Environmental Health Department
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COLORADO DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
HAZARDOUS MATERIALS AND WASTE MANAGEMENT DIVISION
SOLID WASTE INSPECTION REPORT
DATE OF INSPECTION: October 27, 2005
FACILITY NAME: Rattler Ridge Composting
LOCATION: Six miles NE of Keenesburg on WCR18
(12002 WCR 59)
FACILITY REP.: Todd Loose— VP Operations
TELEPHONE: 970-454-3492
TELEFAX: 303-384 9259
TYPE OF INSPECTION: Routine Compliance
PARTICIPANTS: Roger Doak, CDPHE
Cindi Etcheverry, Weld County Health
Todd Loose — A-1 Organics
WEATHER CONDITIONS: sunny, light winds
TIME IN: 2:30pm
TIME OUT: 3:30pm
RATTLER RIDGE COMPOSTING
---INTRODUCTION---
During the afternoon of October 27, 2005 Mr. Roger Doak from the Colorado
Department of Public Health and Environment, Hazardous Materials and Waste
Management Division (Division) arrived at A-1 Organics' Rattler Ridge Composting
facility (hereinafter referred to as Rattler Ridge) to conduct a routine compliance
inspection. A concurrent compliance inspection was preformed by Ms. Cindi Etcheverry
with Weld County Department of Public Health and Environment. Notification was
given prior to the inspection. The Division had last conducted an inspection of this
facility on October 14, 2004. Mr. Todd Loose escorted Ms. Etcheverry and me around
the site.
As background information, Rattler Ridge is a Class 1 composting facility. This facility
has operated at its current location near Keenesburg, CO since June 1999. This facility is
approved to accept Type 1, Type 2 and Type 3 feedstocks (e.g., agricultural crop
residues, manure, biosolids, source separated food waste, and sludges). The Rattler
Ridge site includes over 400 acres, approximately 200 acres will be used for composting
operations. Currently, there are approximately 35 acres under use. Raw materials
accepted by Rattler Ridge include spent beer form Coors, cake and liquid biosolids from
Coors, water treatment plant residuals (alum sludge) from Cities of Longmont and
Denver, liquids containing emulsified oil from Arvada wastewater treatment facility, off
specification soda, and food grease pumpings from correctional facilities. This site is not
open for general public use.
---FACILITY INSPECTION ---
Mixing Pad: The concrete mixing pad contained liquid biosolids and wood chips. It
appeared that the mixing pad was at or near capacity. Mr. Loose indicated the mixture of
wood chips and liquid remain in the mixing pad until liquids are absorbed.
In Process Windrows: After constructing each biosolids windrow, a catalyst (produced
by Harvest Quest International, Inc.) is introduced into the windrow. This catalyst
increases biologic activity, elevates temperatures for longer periods of time, reduces the
number of windrow turns and decreases the time necessary for the compost to reach
maturity.
Bulking Material: Bulking material consists primarily of yard waste from the City of
Longmont.
Storm Water Collection System: Rattler Ridge his a waiver from storm water
collection structures and retention pond. As a condition of this waiver, soil samples are
collected adjacent to an inprocess windrow and samples analyzed for constituents
associated with feedstocks accepted by this facility. Samples are collected and analyzed
on an annual basis.
Rattler Ridge Composting Inspection Report
10/27/05 — Page 2
• •
Ground Water Monitoring: Two ground water monitoring wells (DH -122 and DH -97)
are sampled annually. Because of obstacles near Well DH -122, this well could not be
samples. Todd indicated, DH -122 would be sampled by the end of November.
Screening Area: No activities were occurring in the screening area.
Access Control: Signage is in place at the mainentrance of the facility. Fencing has
been installed along with a lockable gate at the main entrance.
Above Ground Storage Tanks: Four large ASTs have been installed to hold beer waste.
The tanks are glass -lined and each tank's capacity is approximately 3,600 gallons.
Nuisance Conditions: Prior inspections have noted a significant number of flies in the
area of the four ASTs. Again, a considerable number of flies were present in this area.
Todd explained that they have stopped using parasitic wasps because they do not survive
in cool weather. Use of parasitic wasps will continue in the spring.
Also, plastic windblown debris was observed along the northern perimeter of the site, but
especially concentrated near the entrance gate.
Fuel Tank Storage and Used Oil Storage Areas: Last year's inspection noted several
activities in the fuel storage area which raised concerns. It appears that all discolored soil
has been removed and the facility has taken appropriate measures to contain fuel spillage
if it were to occur. Also, Todd indicated that all equipment maintenance occurs offsite.
Thank you for correcting this problem and taking actions to prevent future spills.
---DOCUMENT REVIEW ---
The following records were requested for review:
1. volume and types of feedstock,
2. volume and types of bulking material,
3. operational monitoring data,
4. volume of compost distributed offsite,
5. design and operations plan,
6. compost analytical data,
7. annual report,
8. financial assurance documentation,
9. soil sampling plan and data, and
10. groundwater monitoring data
Facility records are contained in a notebook at the Eaton facility. All records requested
were found in the notebook except for the most recent groundwater monitoring results
and windrow turning data. The Division received a copy of the groundwater report, but
ask Mr. Loose to fax windrow turning data. As of the date of this report we have not
Rattler Ridge Composting Inspection Report
10/27/05 — Page 3
received the requested information. Please provide this data within 30 days of receipt of
this report.
---INSPECTION CLOSEOUT ---
An inspection closeout meeting was held with Mr. Loose. I presented the completed
Solid Waste Disposal Site and Facility Inspection form (attachment) to Todd and
provided an explanation for each item marked `No' or `N/A'. Mr. Loose initialed the
inspection form as the facility representative.
---INSPECTION FINDINGS ---
Based upon observations made at the time of this inspection several areas of concern
were identified. I) Windblown debris onsite, 2) significant number of flies in the area of
the 4 ASTs and 3) no record showing number of windrow turns.
Prepared by:
Roger Doak
--- IGNATURE BLOCK---
/
Facility Inspection Form
---ATTACHMENT---
Rattler Ridge Composting Inspection Report
10/27/05 — Page 4
COLORADO DEPARTMENT of PUBLIC HEALTH a
HAZARDOUS MATERIALS and WASTE MANAGEMENT DIVISION
SOLID WASTE DISPOSAL SITE AND FACILITY INSPECTION
This inspection is conducted pursuant to TITLE 30, ARTICLE 20, Part 1, § 113(6) C.R.S
Date:
Facility Name:
Facility Location:
County:
Inspection Type:
Weather Conditions:
Time In:
24 30
Time Out: , 3o
RATTLER RIDGE COMPOSTING �l
12002 WCR 59 (approximately 5 miles North of
Keenesburg)
WELD
ID: 063-COM-001
Photos:
PO-k---Ici C1�3
� o
Wind Speed & Direction: Temperature: 70
Owner
Operator
Org:
Name:
Address:
City:
State:
Phone:
Email:
A -I ORGANICS
Org:
Name:
Address:
City:
State:
Phone:
Email:
A-1 ORGANICS
Bob Yost
Todd Loose
16350 WCR 76
16350 WCR 76
Eaton
Eaton
CO Zip: 80615
-
CO Zip:
80615 -
(970) 454-3492
9704543492
FACILITY REPRESENTATIVES
Name
Phone
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sk
\'Vitle
VV V
ceail $
LOCAL GOVERNMENT REPRESENTATIVES
Name
Agency
Phone
INSPECTORS
Name
Agency
Phone
o -f-
C -Z? t4 -r_.-303-
67? -3
137
October, 2005 - Page 1 of 3
Facility Representative Initial
Facility Name:
Date:
RATTLER RIDGE COMPOSTING
101x)/05
OPERATIONS — COMPLIANCE
ID
Factor
Regulation
YES
NO
N/A
1
Prevent Windblown Debris
2.1.11
2
Lack of Debris Accum. on
2.1.7
x
3
Ground Water Monitoring
2.2
4
GW Mon. Syst. Properly
2.2.1(A)
5
Sampling Procedures
14.5.3
6
Minimize Nuisance
14.2.1(B)
7
Vector Control
14.2.1(B)
8
Odor Control
14.2.1(B)
9
Dust Control
14.2.1 B
10
Perimeter Roun-On and Run-
14.2.1(A)
11
Composting Process Followed
14.4.2(E)
12
Adequate Access Control
14.4.2(F)
13
Adequate Signage
14.4.2(G)
X
14
Surface Water/Leachate Pond
14.4.2(H)5
x
15
Work Pad Area Maintained
14.4.3
16
Stormwater Heavy Industry
WQStorm
17
BMPs for Stormwater
WQStorm1
18
BMPs for Materials Handling
WQStorm2
19
BMPs for Sediment and
WQStorm3
20
BMPs for Good
WQStorm4
21
BMPs for Insp/Maint StormW
WQStorm5
22
No Offsite Trans of
WQStorm6
23
NoOffsite Trans Sdmnt/Plltnts
WQStorm7
7
24
Stormwater Management Plan
WQStorm8
OPERATION RECORDS
ID
Factor
Regulation
Location
YES
NO
N/A
1
Annual Report
14.2.2(A)
Q+� S! fi�
2
Bulking Material Type
14.2.2(B)(1)
3
Bulking Material Volume
14.2.2(B)(1)1?E
4
Feedstock Types
14.2,2(B)(1)
5
Feedstock Volume
14.2.2(B)(1)
6
Compost Distributed Offsite
14.2.2(B)(2)
7
Ground Water Monitoring
14.2.2(B)(3)
8
Compost Analytical Data
14.2.2(B)(4)
9
Operational Monitoring Data
14.2.2(B)(5)
10
Financial Assurance
14.2.2(B)(7)
2)
11
Design & Operation Plan
14.2.2(B)(8)V
,
12
Certificate of Designation
14.2.2(B)(9)
October, 2005 - Page 2 of 3
Facility Representative Initial
Facility Name: RATTLER. RIDGE COMPOSTING
Date:
/61 fg7/0 r
OPERATION RECORDS
ID
Factor
Regulation
Location
YES
NO
NIA`
13
Stormwater/Leachate
14.2.2{H)(5)
14
Sampling Frequency
14.5.2
(jam fi�
K
15
Pilot Project
14.8
v.?Ir
HSRF:
Quantity Verification Method:
No
Time Period
Volume
(
1
October, 2005 - Page 3 of 3 Facility Representative Initial
DOPHE 136
HAZARDOUS MATERIALS
SW_4.3._31
BOX#
271
JAN 0 3 2005
ti
Rattler Ridge Organic Recycling
Facility/RRF
12/29/2004
WLD
Solid Waste - Monitoring- Ground Water
M� Monitoring
DFa St y Plans -
Groundwater Sampling Summary Report-Rattler
ep
Terracon Project No. 21047003
SW/4.3./3156
\\figilkinVin
llrerracon
Consulting Engineers & Scientists
I
JAN 0 3 2005 `
organics,,
Environmental Solutions • Economic Sense
December 29, 2004
Roger Doak, Geologist
Solid Waste Unit, Compliance Program
Colorado Department of Public Health & Environment
4300 Cherry Creek Dr. S.
Denver, CO 80246-1530
RE: Groundwater Sampling Summary Report— Rattler Ridge Facility
• Dear Roger:
Enclosed is a copy of the groundwater sampling summary report for the Rattler Ridge Facility
dated December 22, 2004 and submitted by Terracon.
Please let me know if you have questions or need any other information.
Sincerely,
Bob Yost
Vice President
New Business Development
Enc.
cc: Cindi Etcheverry, WCDPH&E, w/enc.
Eaton Facility 16350 WCR 76 • Eaton; Colorado 80615 • Tel 970-454-3492 • 800-776-1644 • Fax: 970-454-3232 -
Lost Antlers Facility 6569 Hwy. 93 • Golden, Colorado 80403 • Tel 303-384-9232 *Tax: 303-384-9259 --
Rattler Ridge Facility 12002 WCR 59 • Keenesburg, Colorado 80643
1 �
JAN 0 3 2O5 ��
GROUNDWATER SAMPLING SUMMARY
Al ORGANICS
RATTLER RIDGE FACILITY
KEENESBURG, COLORADO
Terracon Project No. 21047003
December 22, 2004
Prepared for:
Al Organics
16350 Weld County Road 76
Eaton, Colorado
Prepared by:
TERRACON
Fort Collins, Colorado
Rattler Ridge Organic Recycling
Facility/RRF
12129/2004
WLD
Solid Waste - Monitoring - Ground Water Monitoring Data & Plans -
Groundwater Sampling Summary Report -Rattler Ridge Facility-
Terracon Project No. 21047003
SW/4.3./3156
u
SW/4.3./3166
TABLE OF CONTENTS Terracon
Page No.
1.0 INTRODUCTION 1
2.0 FIELD ACTIVITIES 2
3.0 LABORATORY METHODS 3
4.0 ANALYTICAL RESULTS 3
LIST OF APPENDICES
Appendix A: Figure 1 —Site Location Map, Figure 2 —Site Vicinity Map, Figure 3 —Site Diagram
Appendix B: Tables
Appendix C: Laboratory Data Sheets
Al ORGANICS
RATTLER RIDGE FACILITY
KEENESBURG, COLORADO
Terracon Project No. 21047003
December 22, 2004
1.0 INTRODUCTION
1.1 Site Description
Site Name
Al Organics
Site Location/Address
Rattler Ridge Facility, Keenesburg, Colorado
General Site Description
The subject site consists of a composting facility.
A site location map is included as Figure 1, and a site vicinity map is included as Figure 2 of
Appendix A.
1.2 Scope of Work
Terracon conducted groundwater sampling at the Al Organics Rattler Ridge facility located in
Keenesburg, Colorado. The objective of the groundwater sampling is to monitor off -site
groundwater monitoring wells for analytes defined in Al Organics-Keenesburg facility permit.
Terracon's soil and groundwater sampling activities were conducted in accordance with Terracon's
proposal dated July 13, 2004, as authorized by Mr. Bob Yost, Al Organics on July 20, 2004.
1.3 Standard of Care
Terracon's services were performed in a manner consistent with generally accepted practices of the
profession undertaken in similar studies in the same geographical area during the same time period.
Terracon makes no warranties, either express or implied, regarding the findings, conclusions or
recommendations. Please note that Terracon does not warrant the work of laboratories, regulatory
agencies or other third parties supplying information used in the preparation of the report. These
services were performed in accordance with the scope of work agreed with you, our client, as
reflected in our proposal and were not restricted by ASTM E1903-97.
1
Al Organics
Project Number: 21047003
December 22, 2004
1.4 Additional Scope Limitations
Terracon
Findings, conclusions and recommendations resulting from these services are based upon
information derived from the on -site activities and other services performed under this scope of
work; such information is subject to change over time. Certain indicators of the presence of
hazardous substances, petroleum products, or other constituents may have been latent,
inaccessible, unobservable, nondetectable or not present during these services, and we cannot
represent that the site contains no hazardous substances, toxic materials, petroleum products, or
other latent conditions beyond those identified during this sampling summary. Subsurface
conditions may vary from those encountered at specific borings or wells or during other surveys,
tests, assessments, investigations or exploratory services; the data, interpretations, findings, and
our recommendations are based solely upon data obtained at the time and within the scope of these
services.
1.5 Reliance
This report has been prepared for the exclusive use of Al Organics, and any authorization for use
or reliance by any other party (except a governmental entity having jurisdiction over the site) is
prohibited without the express written authorization of Al Organics and Terracon. Any unauthorized
distribution or reuse is at the client's sole risk. Notwithstanding the foregoing, reliance by authorized
parties will be subject to the terms, conditions and limitations stated in the proposal, soil and
groundwater sampling summary report, and Terracon's Terms and Conditions. The limitation of
liability defined in the terms and conditions is the aggregate limit of Terracon's liability to the client
and all relying parties unless otherwise agreed in writing.
2.0 FIELD ACTIVITIES
2.1 Groundwater Sampling
On November 30, 2004, a Terracon environmental professional measured depth to groundwater,
purged, and sampled monitoring wells DH -122 and DH -97. Approximately 63 -gallons of water were
purged from monitoring well DH -122. Approximately 185 -gallons of water were purged from
monitoring well DH -97. Groundwater was field monitored for pH, temperature and conductivity prior
to sample collection. Due to a malfunction in the a field meter, dissolved oxygen (DO) and oxidation-
reduction (redox) potential were not recorded during this monitoring event.
A site location map is provided as Figure 1 and is included in Appendix A. The site vicinity map is
depicted as Figure 2 and is included in Appendix A. A site diagram with approximate locations of
DH -122 and DH -97 in relation to the pertinent structures and general site boundaries is included as
Figure 3 in Appendix A.
2
Al Organics
Project Number: 21047003
December 22, 2004
3.0 LABORATORY METHODS
3.1 Groundwater Analytical
Terracon
The groundwater samples collected were were shipped under standard chain of custody procedures
to Soil Control Lab (SCL) of Watsonville, California and were analyzed by SCL for Calcium (Ca),
Magnesium (Mg), Potassium (K), Sodium (Na), Iron (Fe), Manganese (Mn), Copper (Cu), Zinc (Zn)
Nitrate (NO3), Sulfate (SO4), Chloride (CI), Alkalinity, Hardness and Total Dissolved Solids (TDS).
4.0 ANALYTICAL RESULTS
4.1 Groundwater Samples
The following summarizes the groundwater analytical testing results from initial sampling in October
2001 to the most recent sampling event in November 2004. Published groundwater and drinking
water standards referenced in the following summary were obtained from the Colorado Department
of Public Health and Environment (CDPHE).
Monitoring well DH -122
Groundwater Quality
• Groundwater quality parameters pH, Conductivity, Alkalinity and Hardness appear to fluctuate
since initial sampling with no discernable trend.
• TDS concentrations appear to fluctuate from 860 milligrams per liter (mg/L) to 1,800 mg/L,
above the CDPHE published Secondary Maximum Contaminant Level (SMCL) of 500 mg/L for
drinking water.
• Nitrate concentrations appear to fluctuate between <0.20 mg/L and 9.0 mg/L but remain below
the CDPHE published MCL) of 10 mg/L for drinking water.
• Chloride concentrations have ranged from 87 mg/L to 100 mg/L but remain below the CDPHE
published SMCL of 250 mg/L for drinking water. Chloride concentrations have shown a slight
decrease since initial sampling in October 2001.
• Sulfate concentrations have ranged from 430 mg/L to 800 mg/L, above the SMCL of 250 for
drinking water. Sulfate concentrations appear to have decreased since initial sampling in
October 2001.
• Flouride concentrations were observed at 1.4 mg/L and 1.6 mg/L in August 2004 and November
2004, respectively, below the MCL for drinking water and Colorado Groundwater Standard
(CGS). Flouride concentration was not reported in previous sampling events.
3
Al Organics
Project Number: 21047003
December 22, 2004
Metals
Terracon
• Ca, Mg, K and Na concentrations fluctuate but appear to decrease since initial sampling in
October 2001.
• Fe concentrations have fluctuated from <0.05 mg/L to 2.90 mg/L since initial sampling in
October 2001 with no discernable trend observed.
• Mn concentrations were observed at 1.3 mg/L and 0.2 mg/L in August 2004 and November
2004, respectively, above or at the CGS of 0.2 mg/L and exceeding the SMCL of 0.05 mg/L for
drinking water.
• Cu and Zn concentrations were observed below laboratory detection limits during the August
and November 2004 sampling events.
Monitoring well DH -97
Groundwater Quality
• Groundwater quality parameters pH, Conductivity, Alkalinity and Hardness appear to fluctuate
since initial sampling with no discernable trend observed.
• TDS concentrations appear to fluctuate from 800 mg/L to 1,000 mg/L, above the CDPHE
published Secondary Maximum Contaminant Level (SMCL) of 500 mg/L for drinking water.
• Nitrate concentrations have not been observed above laboratory detection limits since initial
sampling in October 2001.
• Chloride concentrations have fluctuated from 33 mg/L to 42 mg/L, but remain below the CDPHE
published SMCL of 250 mg/L for drinking water.
• Sulfate concentrations have ranged from 430 mg/L to 470 mg/L, above the SMCL of 250 for
thinking water. Sulfate concentrations appear to be relatively stabilized.
• Flouride concentrations were observed at 3.3 mg/L and 2.7 mg/L in August 2004 and November
2004, respectively, above the CGS but below the MCL for drinking water. Flouride concentration
was not reported in previous sampling events.
Metals
• Ca, Mg, K and Na concentrations fluctuate with no discernable trend observed since initial
sampling in October 2001.
• Fe concentrations have been observed below or near laboratory detection limits since initial
sampling in October 2001 with no discernable trend observed.
• Mn concentrations were observed at 1.1 mg/L and 0.57 rng/L in August 2004 and November
2004, respectively, above or at the CGS of 0.2 mg/L and exceeding the SMCL of 0.05 mg/L for
drinking water. Mn concentrations were not reported in previous sampling events.
• Cu and Zn concentrations were observed below laboratory detection limits during the August
4
Al Organics
Project Number: 21047003
December 22, 2004
Terracon
and November 2004 sampling events. Cu and Zn concentrations were not reported in previous
sampling events.
Laboratory results are also summarized in Tables 1 through 3 in Appendix B. Charts 1 and 2,
included in Appendix B, illustrate concentrations of chloride and nitrate as well as depth to
groundwater versus time in groundwater monitoring wells DH -122 and DH -97.
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APPENDIX A
Figure 1 — Site Location Map
Figure 2 — Site Vicinity Map
Figure 3 — Site Diagram
WelllIi+JtI1I
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Fort Collins
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Longmont
0t
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Win,ls,>i
I1illikeii
Eaton
Greeley
Evans
La Salle
[tacono bit Lupton
1_afayene — - —
* 1
Bloomfield
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• •Thornton
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a , 4' Westminster ' f,, -
4 -i ,-I
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41 I * r - —
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I Gleridale
J
O!AGRALI !S FOR CEN£RAL LOCATION ONLY,
,I,NO 1S NO1 INTENDED FOR CONSTRLIC-noN PURPOSES.
-L.
1
Bii+j,�s,IaIe
Cornish
•
Goodrich
•
Masters
•
A I 0RCiANKS
og,en
Prospect Valley•
Bennett
Watkins
4--
r
Byeis
FIGURE 1 SITE LOCATION MAP
Al ORGANICS
KEE`,r- ;i.;c,.-; Cr1 -'d? A!
Fort Mort
i;11 n .Y.,�..c
A.Gfx MCn 4>�
i.!=1 -C(n
Alt
ro reaRK
�' ••:. i? 4P•
A I +_)RGANIC S
DIAGRAM IS FOR GENERAL LOCATION ONLY,
*NU IS NOT INTENDED FOR CONSTRUCTION PURPOSES
car ..u. nr
39 s
Keenesl,ui+j
•
FIGURE 2 SITE VICINITY MAP
Al ORGANICS
\__DH -97
TRAILER
Al ORGANICS
APPROXIMATE
SUBJECT SITE
BOUNDARY
APPROXIMATE LOCATION OF
GROUNDWATER MONITORING WELL
DIAGRAM IS FOR GENERAL LOCATION ONLY,
AND tS NOT INTENDED FOR CONSTRUCTION PURPOSES.
65 GVOH AINfIOO al3M
FIGURE 3: SITE DIAGRAM
Al ORGANICS
RATTLER RIDGE FACILITY
KEENESBURG, COLORADO
Projeu Mngr.
Designed By.
Checked By.
DRP
JCK
DRP
lierracon
301 N. Howes Street
Project No.
Scale:
Date:
Approved By. By. Fort Collins, Colorado 80521 Drawn B
DRP
File Name: 27047003-GW-RR3 Figure No,
21047003
NTS
12/20/04
JCK
3
CO
c
a)
Q
Q
Q
1
1
1
1
I
I
I
I
1
I
I
I
I
I
I
I
I
I
APPENDIX B
Tables
1—
❑
❑
J
W
L-
W
H
5
0
0
U-
0
re
2
2
CI)
T
U
lL
in
O
Q
E
O
0
rn
-a
@ 0
IX U
N
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PROJECT NAME:
O
O
C-
C
O_
N
Z ,
ct
Lu
U m
2
n
J Z
U 0
W W
00
C
Oxydation
Reduction
Potential (mV)
z
z
z z z g
z
z z
z
z
z
03
z
Dissolved
Oxygen pH
(mg/L),
0)
LO
C-
LO
N
N-
N- (N LO
CO N (` r--
C. - C- N N.
—
O)
CO
C- —
LC) CD
N- N-
C)
a0
C`
C)0
N-
CJ)
C`
C)
LO
N
C`
)
CT)(C)
[O
0
CO
C)
O
CO
C)
0 O O 0)
N N LO
CO LC) V r
Ir
Z
C) O
O O
C)
O
r
CO
O
(N
V
O
C
V
LC)
LC)
O
CC
Z
Conductivity
(mS/cm)
W
CO
r
LO
N
C:3
N
0) v N- 'Ct
N W 0O
O O 0') t`
N N r .-
N
(0 ("")
N -
V V
N
-
rt
r
N
[t
LC)
V
rt
C)
:t
rt
o
V
N
Groundwater
Temperature
(°C)
0
N
4
0
V
cc;
0 0 O CD
O V CO
V N 4 C)
r r r r
ti
,j
C) C)
CO r
V V
O
C
Cr)
O
CO
(")
C)
C)
CO
Ch
Cr)
C)
LO
N
Depth to Well
Bottom (feet
bgs)
N-
N
CD
(T)
N-
N
CO
CO
Cti N. N- C-
N N N N
CD CO CO CD
Cr) C) CO Cr)
r`
N
CD
C)
co co
W C)
C C
N- N-
CO
W
C
N-
co
W
V
N-
to
CT)
V
N-
CO
W
V
N-
CO
C)
V
N-
Depth to
Groundwater
(feet bgs)
O
LO
C)
C)
CO C LO W
"Cr CO CO O
Ct C) LC)
N-
N
It)
O CO
O 0)
--
CO
C
N
CO
C-
r
CD 0
r-4
N N
CD
LO
N
li m
E@
@❑
in
O
O
CO
O
O
L`)
ti
0 00 0 C)
CO N - N •
N N C`
Occ, cv O
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O
CO
r
r
O O
Q
CO r
O ti
r
CV
O
CO
N
O
r
CO
N
Q
LD
co
O
-
N
O
r
rt
N
ti
4
4
C)
Cr)
r
r
Sample Number
N
NJ
r
',in.'''.
0
N
N
r
0
N N N N
N N N • N
r r r
0 0 0 0
N
N
r
i
0
^ ^
W (T)
0 0
r-
0)
0
N
C)
0
N-
0)
0
N-
Cn
0
N -
CJ
0
m
0
z
a)
d
E
U
fa
CD
(75
E
E
E
mV = millivolts
NR = not recorded
r N t7 V lfl
U
u_
CD
C
O
a
E
O
O
m
a)
O O
O,
c
U
C
ra ci
m QJ O
QS
r C] r
a Y N
O
W < LO
a0D
Z J Z
U U 0
W W W
Ofx
O O
a o. a
a
Sulfate Flouride
(mg/L) (mg/L)
¢ aQQQvco <<<<<r)r-
Z Z Z Z Z r Z Z Z Z Z C) N•
o O
N
0 0 0 0 OO 0 0 OOOOO 0
r - O O O C') C') V 11) ti CD c•-) co
N- r+ co co N- In v -Cr Cr v Cr v 'Cr v
O
to
N
Chloride
(mgiL)
r CD O CO N- CO N- O) II) O I- tf) C) N
a) O) Or O) co a) co CD C7 C7 c7 Mto
O
+% J
ft
Z
O O C30000
0 0 0
L) If) N CO N o r N (b N N CV r
r In O r o O) V O O o O O V V
V V V V V V V
p
r
ul J
❑ O
1 E
0 0 0 0 0 0 0 0 0 0 0 0 0 0
N C) N CA r CD O) V In O r o N-
[D a0 co Q) CO - co co 0:3
r r r r r r
O
O
to.__-
N
N .-.
J
C
C OD
a E
la .r
2
o CD O O O O O to 0 0 0 0 0 0
In N O CO C) O CO r r CO N (N-ct CO
cbr-r-N-(O(O' vvvvaa-1'
d
O
co"Y E
ma
0 0 0 0 0 0 0 0 0 0 0 0 0 0
N- Q) r C3) C) N O In r N r r (f) LCD
N N C) CV CV CV CV N C) C') M M N N
E
L)
N
C E
O
O
0 0 0 0 0 0 0 0 0 0 0 0 0 0
0000000 0000000
CO O Cr) I7) r` C) V V C) N C) N C')
r Cam! r r r r r r rt r r r r r
r
a
O O O O o O O 0 0 0 0 0 0 0
N: r- r` r` N- N- r; r- N- r~ r• N- N -
r'7 C-'
O N O O O O O O N O O O O 0
0 0 0 O O O O O O rJ'
N O" CN.N CV N N O N N,, CV
O m O O N G7 r - CO
[r) r N N N (N [�7 C) N N N N C)
O O CD O r O rti O O r
r r r r r r r r
U O
N N N N N N N
N (N N N N N N
2 2 2 2 2=_
❑ ❑ a O O ❑ ❑
r` r~ N- N- N-
0) C3) O) O) O) C) O) O)
2 Z= Z= 2
'❑ ❑ O O ❑ O O
O V
U C G
a) m _ t O
E y _
tl d N
CO 0 p m „ E
0 E
a) C) C C- O
Q a) a) O
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c'i2
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JC
U y ❑ O U
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0 ra w i6
al
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a) 6) O a) a) 16 iII
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3 } O c }r
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OR COV) O7 w
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41 .C EE E Coms.. 8 3 D
..c R Tao C O N
= O m L] - J
y U C t6 _u E C7 t`a a m
R 7� >> o -ID CO
E C utL - m-3 .-!6 0 E
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I] d1 —1 E ‹.171
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_I = O - II CO a U >
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ZY�]rLrr)❑Nr�u)C)- a
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m
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a)
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a)
R C
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T R
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Z Z C
II II U
CC Z z m
(0tiCO
k
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w w W
-a -)
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CL CL
f
{• 3
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w g o / CD
]
' • 5 '73-
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a. / =J
-
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0 u,° —
D§0
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cP ,4J
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/ - 0 LLJ
o— c.)2
4 4 D
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-. . $ \ f 24--
a
&>Ua)
Ls 6 el & 63 \
(k\$\9/k
/)\0 —to 0
CI OW �
� o < E 0 E
0 g „ co b
k/32k\E2[/
o — �„ __ o0
z o m±= o a
5) NR = Not reported
a)
iz
N
z
0,4
t..
a3
J
N
1 -Or
�r =
o O
aa,o,
U cD c
C•
o
o
E
o
2
z
ai
V
O
O
0
0
L
0
0 a 0 0
o a o0
ti
r)
C.
--e—Depth to Water {Feet bgsr
—ID—Nitrate (mg/L)
Chloride (mg/L)
E
I-
ro
a)
L n
CIM
}
N O
C
L
o
z
L
0
U
U)
L) O l
p
.b/
Q
CNI
O,
hO.
c"
F0
C
m
Depth to Groundwater (feel bgs)
—0--Nitrate tmg/L)
Chloride (rngiL)
I
I
I
I
I
I
I
I
I
APPENDIX C
Laboratory Data Sheets
i
I SOIL CONTROL LAB
I
I
I
I
1
1
1
1
1
1
1
1
1
1
1
1
1
ANALYTICAL CHEMISTS
end
BACTERIOLOGISTS
Approved by Stake, of California
Terracon
301 N. Howes St.
Fort Collins, CO 80521
Attn: Jason Komes
Date Received:
Sample Identification:
Report:
Laboratory #:
pH value
Conductivity (EC)
A2 HANGAR WAY
WATSONVILLE •.
CALIFORNIA
95076
USA
Water samples received 12/1/04
DH -122, collected 11/30/04
Quantitative chemical analysis of water samples.
188882-2/2
Carbonate Alkalinity (as CO3)
Bicarbonate Alkalinity (as CaCO3)
Total Alkalinity (as CaCO3)
Hardness (as CaCO3)
Total Dissolved Solids
Nitrate (as NO3)
Chloride (as CI)
Sulfate (as SO4)
Fluoride (as F)
Calcium (Ca)
Magnesium (Mg)
Potassium (K)
Sodium (Na)
Iron (Fe)
Manganese (Mn)
Copper (Cu)
Zinc (Zn)
Tel: 831 724-5422
FAX: 831 724-3188
State
Drinking
Reporting Water
Results Units Limits, Limits2
7.5 pH units 0.1 10.6
1400 umhos/cm 1.0 1600
0 mg/L 5.0 120
200 mg/L 5.0
200 mg/L 5.0
480 mg/L 5.0
890 mg/L 1.0 1000
ND
87
430
1.6
130
37
3.0
150
ND
0.18
ND
ND
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
mg/L
1.0
1.0
2.0
0.10
1.0
1.0
0.2
1.0
0.05
0.02
0.05
0.05
45
250
250
1.0
0.30
0.05
1.0
5.0
Account Number:
188882-2-281
Reporting Date:
December 9, 2004
Date
Analyzed
12/01/04
12/01/04
12/01/04
12/01/04
12/01/04
12/02/04
12/01/04
12/01/04
12/01/04
12/01/04
12/01/04
12/02/04
12/02/04
12/02/04
12/02/04
12/02/04
12/02/04
12/02/04
12/02/04
Reporting Limits, - are the levels down to which we can quantify with reliability, a result below this level is
reported as "ND" for Not Detected.
State Drinking Water Limits2 - as listed by California Administrative Code, Title 22.
A Division of Control Laboratories Inc.
ANALYTICAL CHEMISTS
end
BACTERIOLOGISTS
Approved by Stet. of California
SOIL CONTROL LAB
Terracon
301 N. Howes St.
Fort Collins, CO 80521
Attn: Jason Komes
Date Received:
Sample Identification:
Report:
Laboratory #:
pH value
Conductivity (EC)
42 HANGAR WAY
WATSONVILLE
CALIFORNIA;
95076
USA
Water samples received 12/1/04
DH -97, collected 11/30/04
Quantitative chemical analysis of water samples.
188882-1/2
Carbonate Alkalinity (as CO3)
Bicarbonate Alkalinity (as CaCO3)
Total Alkalinity (as CaCO3)
Hardness (as CaCO3)
Total Dissolved Solids
Nitrate (as NO3)
Chloride (as CI)
Sulfate (as SO4)
Fluoride (as F)
Calcium (Ca)
Magnesium (Mg)
Potassium (K)
Sodium (Na)
Iron (Fe)
Manganese (Mn)
Copper (Cu)
Zinc (Zn)
Reporting
Results Units Limits1
7.3 pH units 0.1
1300 umhos/cm 1.0
0 mg/L 5.0
250 mg/L 5.0
250 mg/L 5.0
460 mg/L 5.0
870 mg/L 1.0
ND mg/L 1.0
42 mg/L 1.0
460 mg/L 2.0
2.7 mg/L 0.10
110 mg/L 1.0
44 mg/L 1.0
9.0 mg/L 0.2
150 mg/L 1.0
ND mg/L 0.05
0.57 . mg/L 0.02
ND mg/L 0.05
ND mg/L 0.05
Tel: 831 724-5422
FAX: 831 724-3188
State
Drinking
Water
Limits2
10.6
1600
120
1000
45
250
250
1.0
0.30
0.05
1.0
5.0
Account Number:
188882-2-281
Reporting Date:
December 9, 2004
Date
Analyzed
12/1/2004
12/1/2004
12/1/2004
12/1/2004
12/1/2004
12/2/2004
12/1/2004
12/1/2004
12/1/2004
12/1/2004
12/1/2004
12/2/2004
12/2/2004
12/2/2004
12/2/2004
12/2/2004
12/2/2004
12/2/2004
.12/2/2004
Reporting Limits, - are the levels down to which we can quantify with reliability, a result below this level is
reported as "ND" for Not Detected.
State Drinking Water Limits2 - as listed by California Administrative Code, Title 22.
A Division of Control Laborotories Inc.
•
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DOPHE 136
HAZARDOUS MATERIALS
SW_2.1._137
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
BOXY
Rattler Ridge Organic Recycling Far 7/?dn000
Solid 1Vaste- Permit Process laformation(Shnuld be Cl) Sites) -
Application' Design & Operations Plan (D&O) - RATTLER RIDGE
ORGANIC RECYCLING FACILITY
SW/2.1./137
W/2.1./l36 �ali1�V1dY�NN�1iWfMfNIR'1�INI1
•
•
September 19, 2000
Julie Cotter
CDPH&E
4300 Cherry Creek Drive South
Denver, CO
`` 1 f ! r---n7,-,Ir� '!"`!
SEP "21 2000 -
.i RnOt}SMATE�9 ql Z
At4D T'IABTEMP.NACE&iEN7
. Re: Ground Water Monitoring -Well Policy - Rattler Ridge Composting Facility
Dear Ms Cotter;
Thank you for your phone. call last week. The purpose of this correspondence -is to clarify our
intent regarding ground water monitoring wells located on or near the facility.
Based on the lack of ground water, the geological and hydrological conditions, and'the'general,.
operations of the facility, we do not intend to implement a ground water monitoring plan, ••
'However, since there are active and inactive monitoring wells located on and or near the site (see
'site Map,, active wells have`DH'lisfing,9iiactive wells do not) that are owned by Coors Energy,
we feel'it only:logical.'to coiniriiiiiicate"wit11them and review appropriate data from the wells
when available. There is only one active monitoring well that- is actually on the compost property
now. 'It:is designated as DH -122 on thle site map provided as part of the submittal documents.
We would not install new wells or implement a formal monitoring plan unless directed to do so
by Weld County` (the "governing_body").
- If you need further clarification,please do not hesitate to phone me.
Sincerely,
P
Bob Yost
Director, Marketing &
New Bu`siness.Development-'
.
cc: !'FJulie',Ches'ter,'Weld'GRIMY Planning
r;" Trevor Jiricek, Weld:County Iiealtli = "
Environmental Solutions • ' Economic Sense
Eaton Facility 16350.WCR•76 • Eaton, Colorado 80615' • Tel 970-454-3492 • 800-776-1644 • Fax: 970-454-3232
' • Lost Antlers.Facility 6569 Hwy. 93 • Golden, Colorado 80403 • Tel 303-384-9232 • Fax: 303-384-9259
Composter wants to double in size ...9-11 - The Denver BusinessJournalysiwyg://7/http://www.bizjournals...ver/stories/2000/09/11/story6.html
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Week of
September 11, 2000
Leading Stories
Ilflfoiu CAT.Y (a t. 1€i i
CtiiiFir--filijaciiretil I
friink(gt iifu nn
cnnit-_wr�T�
65, ldl1i'l lui
Leading Stories
t,o -ri(d is o
��lc Sri en : n ts
nn. IC rl liE;��. ,e oleilti9l
Composter wants to double in
size
ln►� :'-i -')) ct I n on
Pti4-z) Colts o a na 0
O11711 t1rx
AlBU INESS.COM
Solutions for
Growing Businesses
Leading Stories
From The Denver Business Journal
Composter wants to double in
size
Al Organics sells millions of dollars worth of recycled
organics to landscapers
Cathy Proctor Business Journal Staff Reporter
The state's largest commercial composter wants to build the state's
largest compost pile north of Interstate 76 in Weld County.
If approved by both the state health department and the Weld
County Commissioners, the site -- about five miles north of
Keenesburg -- could be ready to accept material in January, said Bob
Yost, director of marketing for Al Organics.
"This gives us the capacity to double our operation," Yost said.
While compost piles large and small rely on the same mix of
ingredients -- nitrogen, carbon, water, heat and air -- Al Organics
has taken the backyard compost pile to extraordinary heights.
The company accepts, for a fee, about half a million cubic yards a
year of organic garbage -- everything from lawn clippings to wooden
pallets -- and markets between 125,000 and 150,000 cubic yards of
compost a year.
The Keenesburg operation would be set up on about 400 acres of
land, of which 200 acres would be used for composting. Its total
potential capacity would be 1.5 million cubic yards of organic waste
every year, producing about 500,000 cubic yards of compost a year.
"We anticipate using about one-third of that, but it gives us a nice
buffer to work with," Yost said.
The company sells to most of the state's largest landscapers as well
as wholesaling compost to retail outlets.
1 of 3 9/13/00 2:26 PM
cmposter-wants to double in size ...9-11 - The Denver Business Journalysiwyg://7/http://www.bizjournals...verlstoriesl2000/09/11/story6.html
•
•
as wholesaling compost to retail outlets.
Sales in 1999 were more than $4 million, said Karen
Wilson -Johnson, one of three siblings who run the company.
"Composting is a science and it's an art," Yost said.
The science is balancing the ingredients to produce a consistent
product that buyers can rely on, as well as one that meets state
requirements, Wilson -Johnson said.
"The art is making the right product at the right time. We don't throw
it in a pile and let it rot," Yost said.
Instead of a pitchfork from the hardware store to turn the decaying
compost, Al Organics uses huge commercial turners that cost nearly
$300,000, Yost said.
The company has rarely netted complaints about odors wafting from
its four composting sites, located in Golden, on Highway 66 about
30 miles north of Denver, in Eaton and in Cheyenne, Wyo.
"We keep it very aerobic, as opposed to anaerobic," Yost said. "In
27 years, we never had any complaints until this year when people
moved right next door to a site."
Encroaching urbanization makes the Weld County site ideal,
Wilson -Johnson said.
The company's application for the Keenesburg site is being reviewed
for compliance with the state's new composting regulations, with
technical aspects and to "assure that the facility will not negatively
impact human health or the environment," said Glenn Mallory,
leader of the solid waste unit of the Colorado Department of Public
Health and Environment.
The department must approve the plan before the Weld County
Commissioners can consider it, Mallory said.
Mike Guile, a county commissioner, declined to discuss the
application because the commission votes on it. But Virginia Swift,
a town councilwoman for Keenesburg, the closest town to the site,
thinks the plan is perfect for the area.
"It's rattlesnake country up there," Swift said. "It's flat, there's no
water, there's no agriculture out there, there's nothing there. I think
it's a win -win situation."
The new compost site would give Al Organics room to grow over
the coming decades, said Wilson -Johnson.
"Colorado is growing and we have to think long term,"
Wilson -Johnson said. "About 70 percent of a landfill's capacity is
taken up by things that can be composted. We extend the life of a
landfill."
The company started 26 years ago as a way to get rid of the manure
produced by the Wilson family's lamb -feeding operation in Eaton,
2 of 3 9/13/00 2:26 PM
Composter wants to double in size ...9-11 - The Denver Business Journa1ysiwyg://7/http://www.bizjournals...ver/stories/2000/09/I 1/story6.html
which still serves as corporate headquarters.
"At peak, we were feeding 70,000 lambs a year and that creates an
exceptional waste problem. My father started the compost operation
as a way to deal with the waste. We grew beyond what we could use
so we started looking for other markets," Wilson -Johnson said.
Key to taking Al Organics to the next level was an agreement with
Adolph Coors Brewing Co. in 1990 to compost wooden pallets,
waste beer and other organic garbage, Yost said.
Shortly afterward, the City of Loveland agreed to ship lawn
clippings, leaves and yard waste from city drop sites set up for
residents to the company. A 1 Organics composts the garbage, bags it
and sells it back to city residents, splitting the proceeds with the city.
"It's a nationally noted operation that hasn't been replicated,"
Wilson -Johnson said.
The company's phones ring constantly with people offering to sell
compostable garbage cheaply, but the company views its mission as
service oriented.
"People call and offer to sell us their problems, but that's not the way
it works," Yost said. "We're a problem solver. We can help them
solve their problem in an environmentally friendly way."
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•
3 of 3
9/13/00 2:26 PM
•
Colorado Department
of Public Health
and Environment
" Trotect and improve
the health and environment
of the people of Colorado"
NEws
4300 Cherry Creek Drive South, Denver, CO 80246 • (303) 692-2000
•
•
Contact: Marion Galant, Community Relations Manager 303-692-3304
(For immediate release) Wednesday, August 30, 2000
STATE HEALTH DEPARTMENT RECEIVES OPERATIONS
PLAN FOR WELD COUNTY COMPOSTING FACILITY
DENVER --The Colorado Department of Public Health and Environment has
been asked by Weld County to review an application for the Rattler Ridge
composting facility to be located 2.25 miles north of Weld County Road 59, which is
4'/2 miles north of Keenesburg.
A Certificate of Designation is being requested for 437 acres, approximately
200 acres of which will be used for composting. Composting material will consist of
manure and other organic materials.
The State Health Department is reviewing the application for technical merit,
for compliance with the state's composting regulations, and to assure that the facility
will not negatively impact human health or the environment.
Interested citizens may review the document during regular business hours through
Friday, September 29, 2000 at:
-more-
• •
Composting Facility
2-2-2
• Colorado Department of Public Health and Environment
Hazardous Materials and Waste Management Division
Records Center, Building B2
4300 Cherry Creek Drive South
Denver, Colorado 80246-1530 303-692-3331
or
• Sherry Jesser
Keenesburg Town Hall
140 S. Main Street
Keenesburg, Colorado 80643
phone - (303)732-4281 contact is Sheryl Jesser
fax - (303)732-0599
Written comments should be received by Julie Cotter at the State Health Department by
close of business Friday, September 29, 2000. For further information, call Cotter at 303-692-
3417 or toll -free at 1-888-569-1831.
###
•
•
•
0 SillfraVrtrir J.c)
•
•
•
DOTY & ASSOCIATES
ENVIRONMENTAL, GROUND -WATER AND WASTE MANAGEMENT ENGINEERS
20011 GOLDEN GATE CANYON ROAD
SUITE 100
GOLDEN, COLORADO 80403-8125
VOICE: (303) 279-9I 81
PAX: (303) 279-9186
Mr. Bob Yost
A-1 Organics
6569 Highway 93
Golden, Colorado 80403
Subject: Mixing Pad Design
A-1 Organics
Rattler Ridge Site
Dear Mr. Yost:
http://w w w.dotyeng.com
bpdoty@dotyeng.com
August 17, 2000
16-01
This letter presents the design calculations and specifications for a concrete mixing pad
at the above referenced facility.
DESIGN CONCEPTS & CALCULATIONS
The basic concepts embodied in the design are that the pad should be large enough to
work comfortably with a rubber tired loader to achieve mixing of liquids with absorbing
solids such as wood chips. The pad must be able to hold the volume in the tanker
delivering the liquid (6,500 gallons), the 25 -year 24 -hour precipitation event, and that
portion of the solids pile that is submerged by the two liquid volumes. In addition, the pad
is to be easily accessed from all sides and provide a wall at one end to facilitate loading
out the solids. The pad and wall must be sufficiently strong to support the loader.
Finally, the pad must limit infiltration of the liquids prior to complete mixing.
Pad Volume
A pad 60 feet in length and 50 feet wide was selected as reasonable for the mixing
operation itself. The design precipitation event of 3.2 inches (NOAA, 1973) yields a
rainfall volume of 800 cubic feet (3.2/12*60*50). The tanker volume is 869 cubic feet
(6,500#0.1337). Assuming that the solids are in a circular pile with a diameter of 20 feet
and that the pile is 25 percent voids, the solid volume is
Vsolids
(pi/4)*(20)^2* (0.75)*x
236*x
where x is the height of the fluid in feet.
• •
•
•
•
Mr. Bob Yost
Page 2
August 17, 2000
Doty & Associates
The volume of the pad (Vpad) is also a function of the depth of the fluid (x). If the volume
stored on the sloping corners of the pad is ignored, the expression for the total storage
on the pad simplifies to
Vpad = 56*42*x + 2*(1/2)*(56*4)*x + (1/2)*(42*4)*x
2660*x
The height of the fluid can be determined knowing that
Vpad = Vprecip + Vtanker + Vsolids
Substituting the known quantities into this expression yields
2660*x = 800 + 869 + 236`x
Rearranging to solve for x yields
x = (800+869)/(2660-236)
0.69 feet
= 8.3 inches
Thus, we selected a depth of 9 inches as a conservative depth, knowing that some
additional storage capacity is provided in the corners.
Strength
Based on past experience, a concrete thickness of 6 inches has been selected as
adequate for loader traffic. A slightly thicker wall (8 inches) is provided for the load out
stop. In addition, all concrete will be reinforced with Number 4 bar on 12 inch centers
and bar will be left extruding from the strip footing beneath the wall and slab to tie both
features to the footing. Finally, compacted road base will be placed behind the wall to
limit tilting.
Limitation of Infiltration
For crack control, the slab will be sawcut into 10 foot square blocks. Thus, an essentially
impermeable surface will be provided by the intact blocks. Some infiltration can be
expected through the cracks; however, penetration into native soils will be limited by the
presence of fines in the compacted road base material beneath the slab. This is
considered appropriate given the non -synthetic -organic (albeit biologically active) nature
of the liquids that will be handled on the pad.
• •
•
•
•
Mr. Bob Yost
Page 3
August 17, 2000
Doty & Associates
SPECIFICATIONS
All concrete elements shall be reinforced with a single mat of Number 4 rebar, 12 inches
on center both ways. All reinforcing bar shall be held a minimum of 2.5 inches clear of
outside concrete surfaces. The only exception to this is that the strip footing beneath the
wall and the slab shall have two rows of reinforcing bar on 12 inch centers exposed. One
row will extend one foot into the wall and the other will be bent to extend one foot into
slab.
All concrete shall be a six sack mix with a minimum 28 -day compressive strength of 3,500
pounds per square inch and a maximum slump of three inches.
The slab shall be poured as a continuous structure and the three sideslopes (9 inches
of drop over 4 feet) shall be shaped by hand or other means as deemed most appropriate
by the contractor. The slab shall be sawcut green into 10 foot square blocks.
All concrete structures shall be underlain by a minimum of 6 inches of well compacted
road base material. Similarly, well compacted road base material shall be placed against
the outboard side of the wall at a nominal slope of 3:1 (horizontal to vertical).
t
I trust that the foregoing and attached meet your needs. Please call if you have
questions or need additional information.
et) ev--- .0.,N.,,,:i.....
b • 19649 :or II
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i
REFERENCES
Sincerely,
DOTY & ASSOCIATES
enjamin P. Doty, P.E.
NOAA, 1973, NOAA Atlas 2, Precipitation -Frequency Atlas of the Western United States,
Volume Ill - Colorado, Figure 29, U.S. Department of Commerce, National Oceanic
and Atmospheric Administration, National Weather Service, Silver Spring,
Maryland.
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•
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DOTY & ASSOCIATES
ENVIRONMENTAL, GROUND -WATER AND WASTE MANAGEMENT ENGINEERS
•
•
20011 GOLDEN GATE CANYON ROAD
SUITE 100
GOLDEN, COLORADO 80403-8125
VOICE: (303) 279-9181
FAX: (303) 279-9186
Mr. Roger Doak
Colorado Dept. of Public Health & Environment
Mail Code HMWMD-SWIM-B2
4300 Cherry Creek Drive South
Denver, Colorado 80246-1530
hup://www.dotyeng.ccrm
bpdoLy@dotyeng.com
August 10, 2000
116-01
l- - �• r F'r6::f y'
Subject: Certification of Hydrogeologic and Geologic Evaluation -
Design and Operations Plan
Proposed Composting Facility
A-1 Organics
Rattler Ridge Site
Dear Mr. Doak:
RDOUSMATERIA,LS
ANDY ASTEMAIAGE" LE;;T
This letter presents my review of the hydrogeologic and geologic section of the Design
and Operations Plan for the above referenced facility.
REVIEW
The hydrogeologic and geologic discussions (pages 10 and 11 of the Design and
Operations Plan) rely on data and evaluations presented in Doty (1998) and IC (1992),
both of which I understand were submitted to you with the plan. The following statements
are made in the plan, all of which are essentially correct.
1. The site is covered with a thick layer of eolian sands.
Our research indicates that the uppermost bedrock, the Laramie Formation, is
covered with deposits of alluvium and dune sand (McWhorter and Ortiz, 1978).
The alluvial materials consist of silty, clayey, fine to coarse grained sands with
occasional gravel particles ranging from 1/8 to 1.5 inch diameter (Coors Energy,
1996). Based on mapping presented in Coors Energy (1996) and reproduced in
Doty (1998), the occurrence of the alluvial materials on the Rattler Ridge site is
restricted to the Ennis Draw paleo-channel in the eastern quarter of Section 36.
The dune sand (also known as blow sand) covers the alluvial materials or directly
overlies the Laramie where the alluvium is absent (McWhorter and Ortiz, 1978).
The dune sand is essentially of uniform thickness, averaging about 20 to 30 feet
•
•
Mr. Roger Doak
Page 2
August 10, 2000
Doty & Associates
(McWhorter and Ortiz, 1978). According to testing at an adjacent property, the
sand is very fine to fine grained with little or no clay (IC, 1992).
2. There is little ground water beneath the site, and what little water that exists
is of poor quality.
Our earlier research (Doty, 1998), leads us to conclude that the uppermost aquifer
at the site consists of silty claystones and sandstones in the upper Laramie and
the Ennis Draw Alluvium, which form a single interconnected system.
a Ground water occurs in the silty claystones and sandstones above the coal
in the upper portion of the Laramie Formation under both confined and
unconfined conditions and flow is generally to the northeast (McWhorter
and Ortiz, 1978). McWhorter and Ortiz (1978) were of the opinion that the
ground water in the upper Laramie is in good connection with, and
discharging to the Ennis Draw alluvium. Based on hydraulic testing
described in McWhorter and Ortiz (1978), these materials have a geometric
mean hydraulic conductivity of 3x10-5 centimeters per second (cm/s),
although this is likely an over -estimate of the true value because of
wellbore storage effects in the tests.
o Both the eolian sand and the Ennis Draw alluvial materials are relatively
permeable. IC (1992) reports an hydraulic conductivity of 1x10-3 cm/s for
the eolian sand, although the material is dry at their site and at the Coors
Energy facility. It appears that both the hydraulic conductivity contrast
between the eolian sand and the underlying Laramie Formation and the
rate of recharge are sufficiently small that ground water is not perched in
the sand. The Ennis Draw Alluvium is saturated and produces water to
several wells and windmills in the general area. McWhorter and Ortiz
(1978) report a conductivity of 1x10'4 cm/s for a single slug test in this
material. Ground water in the Ennis Draw Alluvium probably flows to the
northwest, following the alignment of the draw (Doty, 1998).
The quality of the ground -water in the uppermost aquifer (as defined above) is and
always has been of relatively poor quality (Doty, 1998). Most of the wells at the
Coors Energy facility produce samples with total dissolved solids (TDS)
concentrations in the 500 to 1,500 milligrams per liter (mg/I) range. The waters
are mostly dominated by sulfate among the anions, and by calcium and sodium
among the cations. The trace metals are generally non -detectable, except
manganese which is present at relatively low concentrations (generally less than
0.5 mg/I).
•
•
•
Mr. Roger Doak
Page 3
August 10, 2000
Doty & Associates
3. There are no domestic wells in the immediate area. Wells that are present
are used for livestock, irrigation and or commercial activities.
Based on discussions in McWhorter and Ortiz (1978), most of the residents in the
site vicinity depend on privately owned wells for domestic and livestock watering
uses. McWhorter and Ortiz (1978) report that of the 24 nearby wells, 7 (all located
in close proximity of the site) are completed in the Ennis Draw alluvium; the
remaining 17 wells are apparently completed in the Laramie -Fox Hills Aquifer.
These conditions are not likely to have changed since the preparation of
McWhorter and Ortiz (1978) because of limited development in the area.
4. The bedrock and shale located beneath the site separate it from any
aquifers. Aquifers are located several hundred feet deep.
The significant aquifers of the Denver Basin include the alluvial and terrace
deposits along the major rivers and streams, the Dawson Aquifer, the Denver
Aquifer, the Arapahoe Aquifer, and the Laramie -Fox Hills Aquifer. The permeable
units beneath the Laramie -Fox Hills have not been developed for water supply
because they are very deep (below the relatively impermeable and thick Pierre
Shale) and other shallower supplies are available. Because the site is located on
the northern flank of the basin, the younger (stratigraphically higher) aquifers have
been removed by erosion; only the Laramie -Fox Hills is present beneath the site
(Robson et al., 1981). The Laramie -Fox Hills Aquifer consists of sandstones at the
base of the Laramie Formation and the upper portion of the underlying Fox Hills
Sandstone.
The aquifers of the Denver Basin are largely recharged by infiltration into outcrops
(Robson, 1987). In the center of the basin, downward movement of water from
overlying units is also an important recharge mechanism (Robson, 1987).
However, the vertical movement of water from overlying units is probably an
insignificant recharge mechanism for the Laramie -Fox Hills because of the thick
shales in the upper Laramie Formation (Robson, 1987, page 23).
In the northern portion of the basin, flow in the Laramie -Fox Hills is away from the
outcrop along the mountain front toward the South Platte River (Robson et al.,
1981). There is also considerable use of water from the Laramie -Fox Hills in the
general area, which has created a potentiometric trough trending to the northeast,
located just west of the site (Robson et al., 1981). Based on 1978 potentiometric
conditions shown in Robson et al. (1981), ground water beneath the site in the
Laramie -Fox Hills is flowing to the northeast under a gradient of approximately
0.002.
As stated earlier, the vertical movement of water from overlying units is probably
an insignificant recharge mechanism for the Laramie -Fox Hills, the top of which is
•
•
•
Mr. Roger Doak
Page 4
August 10, 2000
Doty & Associates
more than 200 feet below ground at the site (Robson et al., 1981). Therefore, the
Laramie -Fox Hills is not expected to be impacted by operations at the site.
5. There is no evidence that surface water moves onto or off the site. Surface
water migration is very limited.
Our earlier evaluation of surface water concluded as follows (Doty, 1998). There
are no perennial streams or ponds within the site boundaries. In fact, there is no
evidence of surface runoff on -site or in the general vicinity of the site. Essentially
all precipitation apparently infiltrates the highly permeable mantle of sand and
enters the uppermost aquifer (as defined above). No water -formed erosional
features such as rills and gullies are evident. This is also true of Ennis Draw
which is a broad, flat-bottomed depression with no observable channel or gully.
CONCLUSION & CERTIFICATION
Base on the foregoing, it is my conclusion that the hydrogeologic and geologic discussion
in the Design and Operations Plan is essentially correct. I am qualified to draw this
conclusion by virtue of undergraduate and graduate level education in geological
engineering, ground -water hydrology, and geotechnical engineering, as well as more than
twenty years of work experience in these fields. My resume is attached.
•ti
4
ignature
o� i n t}. 0 08�/,,2oari
'3'• .w. Date
%f'to -
'-am••
: 19649•
19649
Registration No.
Colorado
State
•
•
•
Mr. Roger Doak
Page 5
August 10, 2000
REFERENCES
Doty & Associates
Coors Energy, 1996, Open Pit Coal Mining Permit No. C-81-028, Keenesburg Coal Mine,
Third Renewal, submitted to the Colorado Department of Minerals and Geology,
prepared by Coors Energy Company, effective 3 November 1996.
Doty, 1998, Ground -Water Monitoring Plan, Keenesburg Ash Disposal Site, prepared for
Coors Energy Company, Doty & Associates Project No. 302-15, April 9.
IC, 1992, Design and Operations Plan for the East Weld Sanitary Landfill, Weld County,
Colorado, prepared for Waste Services Company, Industrial Compliance Project
Number 2-3716, February 7, revised December 10.
McWhorter, D.B., and N. Ortiz, 1978, Water Resources and Impact Evaluation for a
Proposed Mining Site, Weld County, Colorado, submitted to Adolph Coors
Company, Agricultural and Chemical Engineering Department, Colorado State
University, November.
Robson, S.G., A. Wacinski, S. Zawistowski, and J.C. Romero, 1981, Geologic Structure,
Hydrology, and Water Quality of the Laramie -Fox Hills Aquifer in the Denver Basin,
Colorado, U.S. Geological Survey Hydrologic Investigations Atlas, Map HA -650.
Robson, S.G., 1987, Bedrock Aquifers in the Denver Basin, Colorado, A Quantitative
Water -Resources Appraisal, U.S. Geological Survey Professional Paper 1257.
•
•
•
Mr. Roger Doak
Page 6
August 10, 2000
RESUME OF BENJAMIN P. DOTY, P.E.
Doty & Associates
EDUCATION
M.S., Civil Engineering, Geotechnical, University of California at Berkeley, 1978.
Graduate and Undergraduate Studies, Geological Engineering, Colorado School
of Mines, 1974-77.
B.A., English Literature, Whitman College, 1974.
PROFESSIONAL EXPERIENCE: Twenty-two years of geotechnical and ground -water
engineering, specializing in the design and construction of dewatering systems, waste
disposal facilities, and surface water control structures, in ground -water chemistry, and
in saturated and unsaturated ground -water flow.
Doty & Associates, 1986 - present, Principal. Sanitary landfill design & monitoring; subsi-
dence evaluations; design of run-off retention system for a metals processing facility;
evaluation of the extent of diesel fuel contamination; remedial investigation and feasibility
study (RI/FS) for CERCLA sites at the Rocky Flats weapons plant; design and construc-
tion of a subsurface compacted clay wall to control a solvent release; construction
supervision of an 1,800 foot long french drain for control of ground -water flow.
Hydro -Search, Inc., 1984-86, Senior Engineer & Manager of Engineering. Technical &
managerial control of Denver office project work including landfill siting, design and
monitoring; sludge sampling for RCRA closure; Part B application for Rocky Flats plant;
assessment of 48th & Holly Superfund site; and evaluations of lead smelting facilities.
Other Positions
Golder Associates, Inc., 1979-84, Intermediate & Senior Engineer
D'Appolonia Consulting Engineers, 1979, Geotechnical Engineer
Woodward -Clyde Consultants, 1978-79, Staff Engineer
Lawrence Berkeley Laboratory, 1977-78, Geological Engineer
Ark Land Company, 1976, Junior Geologist
PROFESSIONAL PARTICIPATION: Professional engineer in Colorado, Wyoming and
California. Member of Tau Beta Pi, National Water Well Association, Colorado Ground -
Water Association, American Society of Civil Engineers, and the Solid Waste Association
of North America. Co-author of publications on hydrologic testing techniques & ground-
water chemistry. Also taught courses on solid waste management, ground -water
contaminant transport, and on packer testing techniques.
•
•
July 24, 2000 •
Weld County Department of Planning Services
1555 North 17th Avenue
Greeley, CO 80631
Attention:, Julie Chester
Re: Rattler Ridge Organic Recycling Facility.
Dear Ms Chester,
S��(/G�ifR� �•�
JUL 2 4 2000
r
We are pleased to present the following submittal information in support of our application for a
Use by Special Review (USR) and Certificate of Designation (CD) for our Rattler Ridge Organic
Recycling Facility. The site will be located on property we are under contract to purchase from
Coors Energy Company of Golden Colorado. The property is located on Section 36, Township.
3N, Range 64W. .Our purchase contractis conditioned upon the receipt of a USR and CD from
Weld County. .
The following information corresponds to the Use by Special Review Questionnaire. I have also
provided information as outlined in the State, of Colorado's proposed Compost Facility
Regulations (DRAFT) in support of the Certificate of Designation.
Use by Special Review Questionnaire:
1.
Explain, in detail, the proposed use of the property.
The site is to be used to stabilize and process all types of nonhamrdous and nontoxic
organic materials including, but not limited to those materials described in the State of
Colorado Draft Compost Regulations types 1,2, and 3. This is not a disposal site. No
wastes will be permanently disposed of at this site.
Regulatory compliant materials will be processed by use of various composting methods
or similar technologies. Current composting technologies include areated windrow,
Page 1 of 9
Rattler Ridge USR Submittal Environmental Solutions • 'Economic Sense
Eaton Facility 16350 WCR 76 • Eaton, Colorado 80615 • Tel 970-454-3492 • 800-776-1644 • Fax: 970-454-3232
_Lost Antlers Facility 6569 Hwy. 93 • Golden, Colorado 80403 • Tel 303-384-9232 • Fax: 303-384-9259
aerated static pile, static pile, and various in -vessel systems. Soil's and soil related
products will also be processed and or blended with soil amendments. The soil
amendments and related soil products will then be marketed and or distributed. For a
more detailed description of composting and the related activities, please see the
operational plan and appendix information which is part of this submittal.
2. Explain, how this proposal is consistent with the intent of the Weld County
Comprehensive Plan.
The application is consistent with the Weld County Comprehensive Plan (WCCP) for
• several reasons:
I. The WCCP indicates an intent to encourage agricultural and farm uses within Weld
County, along with those activities that promote products and services associated
with, supplemental to, and dependent upon agriculture. •
'This organic recycling facility will utilize waste generated by agriculture entities as
both feed stock and bulking agent materials and process these materials into beneficial
soil amendments. The finished products will be reused by both agriculture and
nonagricultural markets. Use of the facility and the products produced will benefit
agriculture by providing an environmentally superior alternative to current disposal
options as well as providing additional market's for materials generated by agriculture
. entities.
2. The site is also consistent with the county's goal of promoting positive,
environmentally responsible alternatives for recycling waste as opposed to disposing of
it.
3. The WCCP states that Weld County is a "complete farm and food system". This
organic recycling facility is an instrumental part of the complete system by producing a
product ready for purchase. The products produced are beneficial for food
production.
4. , The WCCP promotes industries that purchase products grown or produced by
agriculture. The composting facility may purchase materials from agriculture. But for
the most part, it will offer an alternative that may reduce the costs of agriculture waste
management.
5. The process can be categorized as a new and innovative method for using and
promoting agriculture in Weld County.
Page 2 of 9
Rattler Ridge USR Submittal
•
6. The composting operation is an exporter of goods and importer of income to Weld
County. Al Organics' headquarters is located in Weld County and employees
numerous Weld County residents.
7. The compost operation will capitalize on the quality of a natural resource.... organic
waste.
8. Al Organics is a local rural based organization. Al has operated composting
operations in a responsible manner for over 25 years. Included in their experience is
composting operations and pilot programs that have processed virtually all of the
potential products that would be handled at this facility. The site promotes the
"necessary interdependent relationship between urban and rural areas", as s put forth in
the WCCP.
9. The site is directly dependent on the agricultural industry for both it's raw'materials
and markets for its finished products.
10. The site uses an appropriate location for a commercial or industrial use of agricultural
land that at the same time benefits agriculture. It is consistent with the WCCP's goal
of promoting the conversation of geologically suitable non -prime agricultural land to
solid, liquid, 'and waste water disposal (processing) sites.
11. The site is consistent with the WCCP environmental Quality and Natural Resources
guidelines. It does not promote erosion, reduced water quality, loss of productive
farmland, and reduced fish and wildlife habitats. It assists in taking an active part in
conserving and preserving the environment by providing a responsible proven process
for converting waste materials into useable soil amendments.
12. The organic recycling facility does not exceed the physical capacity of the land and
water needed to accommodate the operation, nor does it have an adverse effect on
water quality and quantity.
13. The organic recycling facility also provides Weld County with an alternative to landfill
disposal of a large volume of organic waste (yardwaste, tree trimmings, garden waste,
food waste, etc.).
3. Explain how this proposal is consistent with the intent of the Weld County Zoning
Ordinance and the zone district in which it is located
•
The applicants use's are both agriculturally and commercially based in nature and are
therefore compatible with surrounding use zone districts.
Page 3 of 9
Rattler Ridge USR Submittal
•
4. What type of uses surround the site? Explain how the proposed use is consistent and
compatible with surrounding land uses.
The site is boarded to :the north by Coors Energy's Keenesburg Mine Site. Originally a
coal mine, this. site is now being used as a fly ash disposal site. •
The site is boarded to the east by vast expanses of open semiarid to arid range land and a
natural gas processing and pumping facility.
The site is boarded to the south by open semiarid to arid range land, used for cattle
pasture and oil and gas production.
The site is boarded to the east by Waste Management of Colorado's Buffalo Run Land
Fill!.
The proposed use is consistent and compatible with surrounding land uses for the
following reasons:
•
•
I. One of the main functions and benefits of facilities of this type is to divert compostable
organic waste materials from landfill disposal, thus saving valuable landfill space and
instead recycling these materials for reuse. The facility mission is highly compatible
with the recycling and diversion from traditional disposal site goals established by the
State of Colorado and Weld County. The existence of an existing landfill within 2
miles of the site is thus not only consistent and compatible, but also very
complimentary. '
2. Many of the materials that can be processed at the facility have agricultural origins.
The existence of agricultural operations within close proximity of the site is'an
advantage to both entities. The site will offer an environmentally superior alternative
to traditional disposal options for agricultural waste materials, while the agricultural
entities and related businesses offer a potential source of feedstock for the recycling
facility and -a market for the products it produces.
3. One of the markets for finished materials produced by the facility will be the mine/oil
field reclamation market. The mine to the north of the facility will be a potential user
of the finished compost produced. The material produced could also be used for
reclamation of oil production facilities, as well as land fill cover. The soil amendments
produced, when added to existing soil, increase water holding capacity, help reduce
erosion, and provide beneficial plant nutrients. Proper soil amendment is a vital part of
reclamation.
4. A large portion of the land use surrounding the site is industrial and or commercial.
Page 4 of 9
Rattier Ridge USR Submittal
•
S. Describe, in detail, the following:
a. How many people will use this site?
Site use for these types of facilities does not normally relate to the number of people
who will use the site. While the site will have public access, site utilization is more .
easily equated with the number of trucks that -will access the site. Similar sites that we
operate average daily truck traffic of between 35 - 50 visits per day, based on a 365
day.year. We would anticipate that in the first 5 years of operation an average of 50
trucks per day will be the upper limit of the site. After the first 5 years operation of
the site, we would anticipate that the average number of trucks accessing the facility
would be in the 75 to 100 trips per day (based on a 365 day year).
b. How many employees are proposed to be employed at this site?
During the first 5 years of operation of the facility 3-10 full time employees will be
utilized at the site. Additional employee's required for project specific operations such
as grinding, screening, additional loader work, etc., will add to this number for short
periods of time.
c. What are the hours of operation?
Normal hours of operation for public access will be from 7:00 AM to 5:30 PM, •
Monday though Saturday. Commercial access will be from 5:00 AM to 11:30 PM,
seven days per week. Production or emergency requirements may at times require
extended hours of operation.
d. What type and how many structures will be erected (built) on this site?
Initially, the site will utilize only a office trailer at the main gate. However, during the
life of th facility, it is likely that the following structures will be placed into use.
• Office building (1)
• Bagging or special project facility (1) up to 20,000 square feet
• Maintenance shop and equipment storage (1 - 4) of up to 5,000 square feet each
• Sorting sheds'(1 - 4) of up to 5,000 square feet each
• Warehousing (1) up to 60,000 square feet
• Truck scale
•
Page 5 of 9
Rattler Ridge USR Submittal
•
e. What type and how many animals, if any, will be on this site?
The only animals that would be on the site would be livestock which would graze on
non used portions of the site. A security guard dog may also be kept at the site.
f. What kind (type, size, weight) of vehicles will access this site and how often?
• The normal types of vehicles that will access the site are trucks and semi trucks
with trailers. Weights will be within legal limits for these types of vehicles. Some
passenger car and pickup traffic will also access the site.
• We would anticipate that in the first 5 years of operation an average of 50 trucks
per day will be the upper limit of the site: However, after the first 5 years of the
site, we would anticipate that average number of trucks accessing the facility
would be in the 75 to 100 trips per day range (based on a 365 day year).
g. Who will provide fire protection to the site?
•
The applicant will petition Keenesburg Fire Protection District for service to' the site.
They are currently providing service for Coors Energy's facility
h. What is the water source on the property? (Existing and proposed)
The only existing water source on the property is a livestock well which will be
modified to provide for non -potable water use.
An application for a new well may also be considered.
Potable water will be brought to the site.
i. What is the sewage disposal system on the property (Existing and proposed)
There is no existing sewage disposal system on the property.
Initially, the operator will employ use of potable toilet facilities. At a future date, it is
anticipated that a septic tank with leach field will be installed for sewage disposal. .
J. If storage or warehousing is proposed, what type of items will be stored?
Warehousing of organic soil amendments, packaging materials and supplies, norn al
maintenance items such as oils and grease for equipment, and general equipment and
tool storage is anticipated.
Page 6 of 9
Rattler Ridge USR Submittal
•
6. Explain the proposed landscaping for the site. The landscaping shall be separately
submitted as a landscape plan map as part of the application submittal.
The site is located on an isolated and privately accessed rural location. There is no
-formal landscaping plan anticipated for the site.
7. -Explain any proposed reclamation procedures when termination of the Use by Special
Review activity occurs.
•
Per state of Colorado and Weld County regulations for facilities of this type, a
reclamation plan along with suitable financial assurance instrument is included as part
the requirements for issuance of the Certificate of Designation. Said financial
assurance will be in place prior to operation of the site.
8. Explain how the storm water drainage will be handled on the site.
The site topography and geology are such that no storm water will accumulate or
leave the site. A discussion of storm water retention is included as part of the
Certificate of Designation information required for this facility. .
9. &plain how long it will take to construct this site and when construction and
landscaping is scheduled to begin.
The site is large enough to allow for initial operations on approximately 200 acres.
Operations will' expand to other areas of the facility as required.
It will take approximately 60 days or less to construct the initial operational site and
locate the modular office facility. Additional construction (such as maintenance
buildings, etc.), will be built as needed during the operation of the facility. Proper
building,permits for permanent structures will be obtained prior to construction
activities associated with those facilities. Initial construction of the site would begin
within 30 days of issuance of USR and Certificate of Designation.
10. Explain where storage and/or stockpile of wastes will occur on the site.
Temporary storage of wastes will be done on secluded locations. Appropriate organic
wastes will be recycled though the composting process. Trash will be stored in
approved containers and land filled as needed.
Storage of liquids or solid organic wastes will be necessary. In most cases, the liquid
received will be applied directly to bulking agents or composting materials. If liquid
Page 7 of 9
Rattler Ridge USR Submittal
•
storage is needed, it will be facilitated in portable above ground storage tanks or other
approved containment.
Wood and other solid materials will be stored in stockpiles at 'various locations around
the site.
The application form, copy of title insurance, road access information, affidavit of interest owners
- surface estate, names of owners of property within 500 feet, affidavit of interest owners -
minerals and subsurface estate, and mineral owners and lessees of mineral interests are attached.
As you are aware, Al Organics has been actively involved with composting operations within
Weld County and the rocky mountain region for over 25 years.- The Rattler Ridge Facility will be
operated with the same professional standards we apply to our sites in Platteville, Golden,
Loveland, and Cheyenne Wyoming.
•
Robert. S. Yost
Director, Marketing &
New Business Development
Page S of 9
Rattler Ridge USR Submittal
•
Appendix B
Weld County Road Access Information Sheet
Access to the site is via WCR 18 east to WCR 59 north. WCR 59 ends approximately 2.25 miles
south of the site. From this point to the site a private road that accesses Waste Management of
. Colorado's Buffalo Run Land Fill and Coors Energy's Keenesburg Mine will also be used to
access Al Organics' Rattler Ridge facility.
There is currently an agreement in place between Waste Management- of Colorado, Coors Energy,
and Weld County regarding maintenance and use of WCR 18 and WCR 59 from the intersection
located at Interstate 76 east and north to the end of WCR 59.
This existing referenced agreement was made at the time the land fill was permitted and assumed
that the land fill would be in'operation. As of this date, the land fill has not -opened for operation.
As a part of issuance of the USR and CD for this site, Al Organics would propose that the
current stake holders (Waste Management, Coors Energy, Al Organics, and Weld County)
negotiate and enter into a new agreement regarding maintenance of WCR 18 and WCR 59.
It would be our proposal that such an agreement would allow for current maintenance
requirements on the road to be completed or documented, and that future maintenance
requirements would be based on percentage of use basis.
• Page 9 of 9
Rattler Ridge USR Submittal
•
Subject
AFFIDAVIT OF INTEREST OWNERS
SURFACE ESTATE
THE UNDERSIGNED, states that to the best of his or her knowledge the attached list is a true and accurate list of
the names, addresses, and the corresponding Parcel Identification Number assigned by the Weld County Assessor
of the owners or property (the surface estate) within 500 feet of the property being considered. This list was
compiled from the records of the Weld County Assessor, or an ownership update from a title or abstract company,
or an attorney. The list compiled from the records of the Weld County Assessor was assembled within thirty days of
the application's submission date.
•
•
Signature
Date
yod
9
•
Rattler Ridge Organic Recycling Facility
Names of Owners of Property Within 500 Feet
Name
Address
Assessor's Parcel
Identification #
Coors Energy Company
P.O Box 467
Golden, CO 80402
121536000004
Coors Energy Company
C/O Logan & Firmine Inc.
333 W. Hampden Ave.
Englewood, CO 80100
121525000007
Waste Management of
Colorado
P.O. Box 1450
Chicago, II 606950-1450
121526000010
Waste Management of
Colorado
P.O. Box 1450
Chicago, II 606950-1450
121535000008
Waste Management of
Colorado
P.O. Box 1450
Chicago, Il 606950-1450
121535000009
Pan Energy Field Services
C/O MC Valuations
P.O. Box 42165
Houston, TX 772422165
121730000006
Harkis, Richard & Connie G.
Trustees
23275 WCR 22
Hudson, CO 80642
121731000002
Harkis, Richard & Connie G.
Trustees
23275 WCR 22
Hudson, CO 80642
130306000001
Harkis, Richard & Connie G.
Trustees
23275 WCR 22
Hudson, CO 80642
130501000005
Waste Management of
Colorado
P.O. Box 1450
Chicago, 11 606950-1450
130502000001
AFFIDAVIT OF INTEREST OWNERS
MINERALS AND SUBSURFACE ESTATE
Subject
THE UNDERSIGNED, states that to the best of his or her knowledge the attached list is a true and accurate list of the names,
addresses, and the corresponding Parcel Identification Number assigned by the Weld County Assessor of the owners or
property (the surface estate) within 500 feet of the property being considered. This list was compiled from the records of the
Weld County Assessor, or an ownership update from a title or abstract company, or an attorney. The list compiled from the
records of the Weld County Assessor was assembled within thirty days of the application's submission date.
•
i
•
Signature
Date
//a a
11
Rattler Ridge Organic Recycling Facility
Mineral Owners and Lessees of Mineral Interests
•
•
Name
Assessor's Parcel
Address
Identification #
Patina Oil & Gas Corp
C/O Logan & Firmine Inc.
333 W. Hampden Ave.
Englewood, CO 80110
121536000004
Duke Energy Field Service
Property Tax Division
P.O. Box 1642
Houston, TX
121536000004
Union Pacific Land Resources
Corp.
801 Cherry Street
Mail Station 2903
Fort Worth, TX 761026803
121525000007
H&S Resources
1999 Broadway, Suite 3600
Denver, CO
121525000007
Duke Energy Field Service
Property Tax Division
P.O. Box 1642
Houston, TX
121526000010
H&S Resources
1999 Broadway, Suite 3600
Denver, CO
121526000010
Patina Oil & Gas Corp
C/O Logan & Firmine Inc.
333 W. Hampden Ave.
Englewood, CO 80110
121526000010
Waste Management of
Colorado
P.O. Box 1450
Chicago, IL 606950-1450
121535000008
Union Pacific Land Resources
Corp
1700 Farnam Street # 105-F1
Omaha, NE 68102-2010
121535000009
Duke Energy Field Service
Property Tax Division
P.O. Box 1642
Houston, TX
121730000006
Duke Energy Field Service
Property Tax Division
P.O. Box 1642
Houston, TX
121731000002
Union Pacific Land Resources
Corp.
801 Cherry Street
Mail Station 2903
Fort Worth, TX 761026803
121731000002
Aceite Energy Corp
1905 Sherman St. Suite 700
Denver, CO 80203
121731000002
Duke Energy Field Service
Property Tax Division
P.O. Box 1642
Houston, TX
130306000001
Amite Energy Corp
1905 Sherman St. Suite 700
Denver, CO 80203
130306000001
H&S Resources
1999 Broadway, Suite 3600
Denver, CO
130306000001
Duke Energy Field Service
Property Tax Division
P.O. Box 1642
Houston, TX
130501000005
Union Pacific Land Resources
Corp
1700 Farnam Street # 105-F1
Omaha, NE 68102-2010
130501000005
•
•
•
Rattler Ridge Organic Recycling Facility
USR/CD Application
Well Information
Map
ID #
Permit #
Use
Location
Depth to
Water
Total Depth
J
1
11406
livestock
SESW S35 3N 64W
92
400
2
46346F
industrial
SESW S35 3N 64W
255
718
3
75493
livestock
SWNE S36 3N 64W
96
460
4
183483A
livestock
SESE S25 3N 64W
85
400
5
183483
livestock
SESE S25 3N 64W
0
300
6
48289F
Commercial
NESE S25 3N 64W
134
620
7
97047VE
Irrigation
NESE S25 3N 64W
134
620
8
118331
Fire
NESE S25 3N 64W
0
61
9
75238
livestock
SENW S31 3N 63W
0
34
10
75237
livestock
NESE S 1 2N 64W
0
30
•
•
•
Rattler Ridge Organic Recycling Facility Design and Operations Plan
July 24, 2000
The following information has been complied using the Colorado Draft Compost Regulations as a
guideline. This information is intended to provide detail required for issuance of a Use by Special
Review and Certificate of Designation required by Weld County and the State of Colorado for
operation of this facility.
Except in those situations where variance has been granted for specific site and or operational
conditions based on this Design and Operations Plan, the site will be operated per The Draft
Composting Regulations as published by the Colorado Department of Public Health and
Environment and final Composting Regulations as approved by the Board of Health.
Names, addresses, and telephone numbers of the owner and/or operator, and
one or more persons having the authority to take action in the event of an
emergency:
Owner: Lambland Inc, dba Al Organics
Address: 16350 WCR 76
Eaton, CO 80615
970-454-3492
970-454-3232 (FAX)
Contacts: Chuck Wilson
Tom Wilson
Bob Yost 303-466-5137 (home)
Name of the composting facility, physical address and legal description,
location with respect to the nearest town, and mailing address.
Name of the facility: Rattler Ridge Organic Recycling Facility
Located in Weld County, Section 36, T3N, R64W
Nearest Town: Keenesburg, Colorado
Site maps and plans drawn to common scale - facility's surveyed property
boundaries, processing and storage areas, adjoining properties, roads, fencing,
existing and proposed structures and surface water control structures.
Site map attached
See USR submittal for building information
Page 1 of 15
Rattler Ridge D&O Information
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•
•
Maximum facility capacity and description of the types of materials to be
composted including:
Types of materials to be composted:
The facility will compost or process Types 1, 2, and or 3 feedstocks, including but not limited to:
agricultural crop residues, manure, untreated wood wastes, source separated yard, paper, and
green wastes, food wastes including all types of brewer's wastes, biosolids, solid waste, processed
solid waste, sludge's, animal moralities, and water treatment plant residuals.
Estimated quantities of feedstocks and bulking agents
The site has approximately 200 acres of production site. Each acre of production is capable of
processing from 7,500 cubic yards per acre per year for standard windrow composting to as
much as 30,000 cubic yards per acre per year using aerated static pile composting. These
volumes are based on the beginning volume of the composting unit. An average bulk density of
compost mixture is around 1,200 to 1,400 pounds per cubic yard,. The total capacity of the site
could be expressed as being able to receive between 1,500,000 cubic yards per year (or 975,000
wet tons), and 6,000,000 cubic yards per year (3,900,000 wet tons). These totals would include
both feedstocks and bulking agents.
Additionally, the site could handle up to 35,000,000 gallons per year of liquid's.
Estimated quantities of in process materials.
At any one time the maximum amount of in -process material would be equivalent to
approximately 1/3 of the annual inflow quantity. This would calculate to approximately 500,000
cubic yards for windrow composting to 1,980,000 cubic yards for aerated static pile.
Estimated quantities of finished product on site.
Estimated maximum volume of screened, finished material , ready for shipment on the site at any
one time would be 100,000 cubic yards of compost and 35,000 cubic yards of soil product.
A detailed description of the composting operation specifically defining all
procedures and activities:
Composting Process Description
Composting of organic materials has been a widely accepted practice for centuries. In the past
few decades, in has become more refined and accepted as a method of dealing with all types of
Rattler Ridge D&O Information
Page 2 of 15
•
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organic waste materials such as animal manure's, municipal solid waste, biosolids, food waste,
yard wastes, and water treatment plant residuals
A typical compost mixture will have a carbon to nitrogen ratio of between 30 - 40:1, and a
moisture content of around 40-50%. Less moisture causes a retardation of biological activity,
and greater moisture may clog pore spaces between particles, thus restricting oxygen transfer.
Composting is generally an aerobic process which allows microorganisms indigenous to the
material being composted to degrade or decompose (digest) the organic material and convert it
into heat, carbon dioxide, and water. Successful composting occurs in the thermophilic
temperature range. The elevated temperatures are obtained by biological activity in the
composting material. No input of heat or energy is required. The process develops temperatures
that eradicate weed seeds and pathogens. Bulking agents are often blended with feedstocks to
provide porosity for oxygen flow and to act as a carbon or nitrogen source for the bacteria.
The final compost produced contains humus, stabilized organic mater, micro and macro nutrients,
and beneficial soil bacteria. It is generally moist, dark in color, has no objectionable odor, and
free of pathogens and weed seeds. Introduction of compost to soil increases the water holding
capacity, improves structure and texture, increases porosity, and provides soil bacteria critical for
healthy, disease resistant plant growth.
While compost is classified as a soil amendment, it contains significant levels of organic nitrogen,
phosphorus, and potash. Organic nitrogen will not leach or volatilize, and thus will not increase
nitrate levels in soils and water supplies.
The following overview is intended to provide an overall concept of how the facility will operate.
Changes in operational procedures will occur based on experience and actual conditions
encountered once the facility is in full scale operation.
Composting Operations
Feedstocks and bulking agents will arrive at the facility by truck or other means of transportation.
After an initial inspection of the material, receipt of the feedstocks and bulking agents will be
documented. Documentation will include generator and transporter information, classification of
the material, and volume information. If required, samples of the materials may be taken at this
time. The generator and or transporter will sign the receiving ticket which will include a
statement similar to the following:
"The generator/shipper hereby acknowledges that the material described above contains
no hazardous or toxic material. Al Organics reserves the right to reject partial or full
shipment. The generator/shipper assumes all responsibility and cost for removal and
disposal of any non -approved or rejected materials delivered to Al Organics facilities. "
Page 3 of 15
Rattler Ridge D&O Information
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•
•
After documentation is completed, the materials will be off loaded at designated areas for storage
and or processing.
Production activities will consist of mixing or blending of feedstocks and bulking agents,
transportation to processing sites, and formation of, or placement in appropriate processing units
(windrows, in -vessel systems, static piles, etc.). Mixing and blending will take place either on a
designated mixing pad, or on the final processing area depending on the nature of the feedstocks
and or bulking agents being blended. The mixing pad will be used for liquid or semi liquid
feedstock materials (biosolids, WTP residuals, etc.). More stable, dryer materials (dry biosolids,
manure's, bedding, yardwaste, etc.), may be either mixed on the pad, or on the processing site.
Once prepared on the mixing pad, the mixture will be transported to a production processing area
within the site boundaries. After placement on a production processing area, the composting
process will begin. Al will utilize the best available technology in determining which composting
procedure to use.
Currently, composting technologies fall in one of several types of processes:
Aerated Windrow:
Aerated windrow composting is currently the most common type of composting procedure.
In this procedure, feedstocks and bulking agents (if required) are blended to produce the
pre -compost mixture.
The compost mixture is placed in long piles called windrows. The windrows can be all types
of sizes, but generally are approximately 12 - 18 feet wide, and 6 - 9 feet tall. These
windrows are normally sized to accommodate the type of equipment that will be used to
aerate them. As an example, if a windrow turner is used, they will usually not exceed the 12 -
18 foot by 6 - 9 foot dimension. However, if front end loaders are used to aerate them, the
windrows can be 20 - 30 feet wide, and 10 -15 feet tall, depending on the size of the loader
used to build them.
Once formed the bacteria and fungi present in the windrows will begin the composting
process. The bacteria will cause the pile temperatures to increase. Pile temperatures normally
will reach the 140-150 degree range. Temperatures are controlled via aeration and by
moisture balance. The major byproducts of the decomposition process produced by the
bacteria and fungi present in the pile are carbon dioxide, water vapor, and heat.
During the composting period, the windrows will be aerated using the specialized equipment
or loaders. The aeration process is done to introduce additional oxygen to the pile, release
excess moisture, reduce particle size, and to condition the material in the windrow.
Windrows will be aerated approximately 5 - 20 times before the process is complete.
Page 4 of 15
Rattler Ridge D&O Information
Static Pile:
Static pile technology is similar to aerated windrow technology in that large piles of
predetermined mixtures of materials are constructed. The difference is that the piles are
allowed to compost without excessive aeration events (turning). Temperature in the piles will
again elevate as they do in the aerated windrow technique. Pile structure is very important if
static pile process is used. Pile structure will determine the air flow and subsequent
availability of oxygen to the bacteria, moisture balance, and overall efficiency of the
composting process.
Often a catalyst, accelerator, enzyme, or cultured bacteria is added to the static pile (they can
also be added to the aerated windrow). These materials are added to increase the biological
population in the pile and thus decrease the time it takes to complete the process. They are
also used to target specific constituent's of the material (sulfur, hydrocarbons, etc.).
Bio-filter caps (ground wood, etc.), can be placed on top of the static piles to help control
odors if necessary.
Aerated Static Pile:
•
•
Aerated static pile composting is very similar to static pile with the exception that pipes with
blowers attached to them are placed under or in the compost piles to provide additional
oxygen to the bacteria. These pipes can either be sacrificial, or permanent and reusable.
The fans are used to pump air through the pipes into the piles when oxygen levels within the
piles need to be increased. The air flow also helps remove excess moisture.
Bio-filter caps (ground wood, etc.), can be placed on top of the static piles to help control
odors if necessary.
In -Vessel
In -vessel composting is similar to aerated static pile composting with the exception that the
process is done within a closed vessel, bag, or building of some type. This process may be
done either aerobically or anaerobically, and is generally very expensive.
In -vessel composting can also utilize accelerator's, enzymes, and bacteria to effect the
process.
Vermicomposting
Often referred to as worm composting, this produces earthworm castings through earthworm
activity associated with their consumption of organic materials.
Page 5of15
Rattler Ridge D&O Information
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•
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A biological catalyst or accelerator (enzymes, cultivated composting bacteria, etc.), may also be
utilized in the various processes to decrease composting time, increase nutrient values of finished
products, control odors, or to target specific constituents of the material being composted.
Composting, sampling, and testing procedures will be carried out in a manner that will comply
with requirements necessary to be certified for Unrestricted Use and Distribution as defined in
Colorado State Biosolids Regulation, #64 (5 CCR 1002-64).
After the compost process is completed, the compost material will either be placed in a curing
pile, screened, or shipped. Material placed in a curing pile will be screened and or shipped at a
later date.
Uncomposted organic materials that come off the screening unit (overs) will be reintroduced into
the composting process, or further processed for marketing and distribution. Non-compostable
overs will be disposed of in a proper manner.
The site will also produce other landscape and or horticultural materials, such as top soil,
prepared top soil, mulch, potting soil, etc. Top soil and prepared top soil will utilize soil,
compost, and water treatment plant residuals as primary ingredients. Water treatment plant
residuals will also be utilized as basic feedstocks in the composting process itself.
All steps in the production of finished compost and other landscape materials will be documented.
Regulated materials (biosolids, water treatment plant residuals, etc.), will be tested by generator
with analytical information kept on site for reference. Analytical information will also be made
available to the governing body as required.
Finished materials will be stockpiled as required and then shipped to various markets via truck or
other appropriate transportation means.
Compost Standards and Sampling
,tandards:
Compost that is sold or distributed for off -site use, shall meet the standards set forth in Table I
of the Draft Composting Regulations.
Depending on the feedstock and or bulking agent materials used, the Department, after
consultation with the governing body, may require additional analysis.
Compost that exceeds the levels specified in Table I must be:
• Reintroduced into the composting process
• Disposed of at a permitted solid waste disposal facility,
• Otherwise used in a manner approved by the Department and governing body.
Rattler Ridge D&O Information
Page 6 of 15
•
•
•
Sampling Procedure's
Finished compost shall be sampled and tested once every 20,000 cubic yards of compost
produced, or annually, whichever is more frequent
Finished compost which has been sampled and tested, but to which additional feedstock is
added prior to, or during distribution, shall be re -sampled and re -tested prior to commencing
or continuing distribution.
Bulking Agents
Analysis of bulking agent materials (wood, straw, etc.), will be done as required by production
quality control manager or assigned operator personnel.
Feedstock Materials
Biosolids
• Contract Clients
Site files will contain biosolids analytical information as required by Colorado State
Department of Public Health and Environment.
Analytical information will be updated annually.
• Occasional or One Time Clients:
Biosolids analysis or certification of Class B status for occasional or one time clients will
be obtained prior to receipt and processing of the biosolids.
Water Treatment Plant Residuals
• Contract Clients
Site files will contain WTP residual tests as required by Colorado Department of Public
Health and Environment. Analytical information will be by generator facility.
Analytical information will be updated quarterly or as defined by CDPH&E.
• Occasional or One Time Clients:
Residual analysis' as required by CDPH&E will be obtained and on file prior to receipt of
material.
Page 7 of 15
Rattler Ridge D&O Information
•
•
Other Feedstock Materials
Any feedstock that would normally require some type of regulatory reporting to
CDPH&E may require sampling. Prior to receipt of new materials, the operator will
contact the governing body, descriptio the new feedstock and determine what, if any
analytical information is required.
From time to time, animal manure's, food waste, wood waste, grass, leaves, and other
non -regulated feedstock materials will be processed. Analysis of these and similar
materials will be up to the operators discretion.
Biosolids Compost
Pathogen Testing - Salmonella /Fecal /Ascaria Lumbricoides & Enterovirus
The total number of combination tests per facility per year will be in compliance with the
minimum number of pathogen tests required for each facility based on the number of dry
tons of biosolids compost and material containing biosolids compost produced at the
facility in a calendar year, as reported on the facility annual report. The CDPH&E
Biosolids Regulations will dictate the number required.
All pathogen testing required will meet one of the protocols approved and defined in
Colorado Department of Public Health and Environment Water Quality Control
Commission, Biosolids Regulation # 64 and EPA 40 CFR 503.13 publications.
• Aerated Windrows
Alternative 1 - Compost being produced using the aerated windrows technique will be
sampled when they are near or have completed certification for time, temperature, and
aeration requirements. A random grab sample will be taken from the windrow. A
minimum of one grab sample per 250 cubic yards of in process material. The individual
grab samples will be combined in a mixing bucket and mixed thoroughly. The mixed
material will be screened over a 1/2" screen. A grab sample of the screened material will
be pulled and placed in a sealed bag (minimum of pound sample). The bag will be
labeled with the date, facility location, and windrow number and sent to an EPA certified
lab for testing.
Alternative 2 - A random grab sample from windrows will be taken as in alternative 1.
The sample will be screened though a'/2 " screen. A sample will be pulled from the
screened material (minimum of pound sample), labeled with the windrow numbers
contained in the sample, and placed in a refrigerator. The sample will be cold pack
shipped to a certified laboratory and tested for Ascaria Lumbricoides and Enterovirus as
required to be certified as a Class A, Grade I Biosolids materials suitable for unrestricted
use and distribution.
Page 8 of 15
Rattler Ridge D&O Information
•
•
•
• Static Pile
A random grab sample from the finished static pile material will be pulled and screened
through a '/2 " screen. A sample from the screened material (minimum of 1/2 pound sample)
will be taken, labeled with the pile number, refrigerated and then sent to and EPA certified
lab and tested for Ascaria lumbricoides and Enterovirus to be certified as Class A, Grade I
Biosolids material suitable for unrestricted use and distribution.
• Aerated Static Pile and In -Vessel
Alternative 1 - Compost being produced using aerated static pile or in -vessel technique
will be sampled when they are near or have completed certification for time and
temperature requirements. A random grab sample will be taken from the material. A
minimum of one grab sample per 250 cubic yards of in process material. The individual
grab samples will be combined in a mixing bucket and mixed thoroughly. The mixed
material will be screened over a 1/2" screen. A grab sample of the screened material will
be pulled and placed in a sealed bag (minimum of 1/2 pound sample). The bag will be
labeled with the date, facility location, and windrow number and sent to an EPA certified
lab for testing.
Alternative 2 - A random grab sample from windrows will be taken as in alternative 1.
The sample will be screened though a 1/2 " screen. A sample will be pulled from the
screened material (minimum of 1/2 pound sample), labeled with the windrow numbers
contained in the sample, and placed in a refrigerator. The sample will be cold pack
shipped to a certified laboratory and tested for Ascaria Lumbricoides and Enterovirus as
required to be certified as a Class A, Grade I Biosolids materials suitable for unrestricted
use and distribution.
Biosolids Stock Pile (BATCH) Samples
Windrows, static piles, aerated static piles, and in -vessel compost will be screened by
batch. Random grab samples (at least 3 per week) will be taken from the batch as it is
being screened. A new batch will be designated at least once per month. At the
completion of each batch a screened material sample will be pulled and sent to a EPA
certified lab for pathogen testing. The batch sample will also be sent to a EPA certified
laboratory for nutrient and metal analysis per CDPH&E requirements.
Non-Biosolids Compost and Soil Products
Grab samples of non-biosolids compost and soil products will be pulled periodically.
Samples will be accumulated until the end of the month. A grab sample of the month's
production will be taken from the composite and sent to a certified soils lab for analysis.
A standard compost or soils analysis will be performed.
Rattler Ridge D&O Information
Page 9 of 15
•
Copies of all analysis information will be keep on file at the site.
Windrows, static piles, aerated static piles, or in -vessel materials that fail to meet the minimum
standard for compliance will remain in the composting process and be re -tested at a later date.
Records will be maintained to verify that biosolids being produced meets or exceeds the
requirements of the then current document required for certification of Class A, Grade I
biosolids for Unrestricted Use and Distribution.
Description of an adequate system of barriers, fencing, and or other site
controls to prevent unauthorized site access:
The site is located at the end of a 2.25 mile long private road. The site itself is surrounded by
barbed wire fencing. Additionally the entrance road to the site itself (off of the private road)
will be gated.
Signage to ensure adequate traffic control and a telephone number to contact
in case of emergency.
•
•
A facility information sign will be placed at the entrance to the site. The sign will list the
operator, emergency numbers, and hours of operation at a minimum. Additionally, on site
signage will be used to direct and traffic, and to address site rules and policies.
A description of surface water control systems designed, and constructed and
maintained to : 1). Prevent flow onto the facility during peak discharge from
a 25 year, 24 hour storm event, 2). Control and collect the on -site run-off
water volume resulting from a 25 year, 24 hour storm event, 3). Contain and
manage leachate which is generated when precipitation comes in contact with
on -site materials, 4). All leachate collection structures shall be constructed of
compacted or in -situ earthen material or other low permeability materials to
achieve a hydraulic conductivity of less than or equal to 1 * 10-5 cm/sec. , 5).
Storm water/leachate collection structures shall be dewatered within 15 days of
a storm event so that the full runoff storage capacity is restored.
Detailed hydrological and geological evaluation of the site.
Two detailed hydrological and geological evaluations of this area are included with submittal
information. The evaluation done for the Keenesburg Mine site includes the property on
which the compost site will be located. The evaluation done for the Waste Management Land
Fill was done on property located directly to the west and southwest of the compost site.
Page 10 of 15
Rattler Ridge DB4.O Information
•
•
•
These reports, both individually and collectively provide detailed information regarding :
Hydrologic properties of the uppermost aquifer, Information regarding the existing quality of
ground water beneath the proposed facility, The types and regional thickness of consolidated
bedrock material, Geologic hazards such as slope stability, faulting, folding, rockfall,
landslides, subsidence or erosion potential.
Hydrological and Geological information indicate 5 main features regarding the site:
1. The site is covered with a thick layer of eloian sands.
2. There is little ground water beneath the site, and what little water that exists is of poor
quality.
3. There are no domestic wells in the immediate area. Wells that are present are used for
livestock, irrigation, and or commercial activities.
4. The bedrock and shale located beneath the site separate it from any aquifers. Aquifers are
located several hundred feet deep.
5. There is no evidence that surface water moves onto or off the site. Surface water
migration is very limited.
Based on the hydrological and geological information for the facility and surrounding area, the
site will be prepared and monitored as follows:
• It would not be logical to construct water retention structures to divert or contain water
that will not exist, therefore the basic topography of the site will be left as is. This will
also help minimize the potential for wind erosion.
• The operator will take background soil samples of the site prior to composting. Periodic
soil tests will be taken in areas of active composting to assist in evaluation of the site.
• All regulated liquids and semi -liquid materials or volatile materials will be premixed on
mixing pads the meet the regulatory requirement.
• The mixing pad will be designed to retain moisture from a 24 hour, 25 year event.
An evaluation of potential impacts to existing surface water and ground water
quality, including but not limited to:
Surface Water:
There is not existing surface water structures or impoundment's on or near the site. Since no
surface migration of water is possible, and in considering the lack of any potable ground water
under the site, no impoundment of surface water control features would be constructed on the
site. To construct berm's or dam's to hold water which would not be present would be futile.
Additionally, disturbance of surface materials to construct these impoundment structures
would expose the area to potential wind erosion problems.
Rattler Ridge D&O Information
Page 11 of 15
•
•
•
The operator will be processing only nonhazardous and or nontoxic materials. In lieu of
surface water containment structures, the operator will conduct annual soil sampling tests to
determine the makeup of the surface materials. The types, frequency, and depth of soil
sampling will be negotiated between the operator and the governing body.
Ground Water:
Little to no ground water exists under the site. However, the operator will monitor both
existing ground water monitoring wells located on the site, plus any additional monitoring
wells established on the site. The number and type of additional wells, if any, will be
negotiated by the operator and the governing body.
Other Environmental Controls:
Airborne Materials:
The windrows and or piles, will be kept moist and will crust over within a short period after
being formed. Fugitive dust will be controlled via watering. Stockpiles of bulking agents
subject to movement by wind will be watered to control wind movement.
Odor:
The composting process will produce some odors. However, with proper operation, odors
can be controlled. Wood or finished compost can be used as a bio-filter if necessary.
Odors generated when windrows or piles are turned or moved can be present. The operator
will manage these activities to coincide with wind direction, time of day, and or other criteria
to midigate any impact from odors.
Vectors:
Frequent aeration of windrows, crusting of piles, or containment with in -vessel systems will
discourage vermin infestation. Heat and activity also discourages burrowing vermin.
Experience has shown that composting actually eliminates fly larvae.
Flood plain information including evidence that the proposed site is not located
within a 100 year flood plain.
Public water supply information including the location of all water supply
wells, springs, and surface water intakes within one mile of the proposed
facility boundary.
Rattler Ridge D&O Information
Page 12 of 15
•
Rattler Ridge Composting Facility
USR/CD Application
Well Information
Map
ID #
Permit #
Use
Location
Depth to
Water
Total Depth
1
-
11406
livestock
SESW S35 3N 64W
92
400
2
46346F
industrial
SESW S35 3N 64W
255
718
3
75493
livestock
SWNE S36 3N 64W
96
460
4
183483A
livestock
SESE S25 3N 64W
85
400
5
183483
livestock
SESE S25 3N 64W
0
300
6
48289F
Commercial
NESE S25 3N 64W
134
620
7
97047VE
Irrigation
NESE S25 3N 64W
134
620
8
118331
Fire
NESE S25 3N 64W
0
61
9
75238
livestock
SENW S31 3N 63W
0
34
10
75237
livestock
NESE S 1 2N 64W
0
30
•
There are no domestic wells, springs, or surface water intakes within one mile of the
proposed facility. Any stock wells or irrigation wells within one mile of the facility are
noted on the vicinity map.
Identification of all lakes, rivers, streams, springs, or bogs, on site or within 'h
mile of the proposed facility boundary.
There are no lakes, rivers, streams, springs, or bogs on site or within Y2 mile of the facility
boundary.
Fire protection plan shall be provided in compliance with local fire codes.
Fire protection will be arranged with the Keenesburg Fire Protection district.
Plans for interim and final closure of the composting facility as defined in
Subsection 14.6
Contingency plans developed, maintained current, and available at all times, which outline the
corrective or remedial procedures to be taken in the event of:
Rattler Ridge D&O Information
Page 13 of 15
•
•
•
• The delivery of unapproved waste:
As material is received at the site, it will be classified and documented. The receiving
ticket signed by the generator or shipper will contain the following statement:
"The generator/shipper hereby acknowledges that the material described
above contains to hazardous nor toxic material. Al Organics reserves
the right to reject partial or full shipment. The generator/shipped
assumes all responsibility and cost for removal and disposal of any
non -approved or rejected materials delivered to Al Organics facilities."
Unproved or rejected materials received at the site will be removed and taken to a
permitted disposal facility.
• Contamination of surface water or ground water
Contamination of surface or ground water issues will be dealt with on a specific
occurrence basis. The operator will notify the governing body of any contamination of
surface or ground water that is identified.
• The occurrence of nuisance conditions either on site or off site.
Nuisance conditions that may occur on or off site will be dealt with on a specific
occurrence basis. Remedies or procedure's necessary to remedy a specific condition will
be arrived at through discussion with the governing body.
• Interim Closure Plans
In the event that interim closure becomes necessary due to conditions as defined in section
14.6.2 of the Draft Composting Regulations, the operator will take the following minimum
steps:
Control nuisance conditions by continuing to process material to a point of stabilization
and or contain material is such a manner as to control nuisance conditions.
Secure all containment fencing and gates and manage the site until such time as the
operation is placed back into full operation.
If after a period of 180 days following a notice from the governing body that interim
closure status is to be implemented, the operator has not reinitiated normal operations,
then the operator will begin implementation of final closure procedure's.
Page 14 of 15
Rattler Ridge D&O Information
•
•
•
• Final Closure Plans
Upon notification from the governing body that final closure plans are to be implemented,
the operator will negotiate and implement a closure plan suitable to the governing body
and implement the specific plan within 30 days of receipt of notice from the governing
body.
Page 15 of 15
Rattler Ridge D&O Information
Land Title Guarantee Company
CUSTOMER DISTRIBUTION
Date: 12-21.1999
property Address:
COORS ENERGY CO.
CJO MESSNER. REEVES
600 17TH sr.. SUITE 2800 SOUTH
DENVER. CO 80202
Ann: PATE TABLEASE
Phone: 303.623.1800
Fax: 303-623-0552
Copies: 1
Sent Via US Postal Service
LAND TITLE GUARANTEE COMPANY
0170 35TH AVENUE
UTTE D
GREELEY, CO 80634
Atm: Lajune Peer3on
Phone: 970-339-9522
Fax: 970-339-9545
•
Our Order Number: PC200072
LAMBLAND INC.
16350 WELD COUNTY RD. 76
EATON, CO 80615
Atm: CHARLES WILSON
Phone: 970-454.3492
Pax: q70-454-3232
Copies: 1
Sent Via US Postai Service
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Land Title Guarantee Company
YOUR CONTACTS
Date: 12-21-1999 Our Order Number: FC200072
Property Address:
Buyer/Borrower:
LAMBLAND INC., A COLORADO CORPORATION
Seller/Owner:
COORS ENERGY COMPANY, A COLORADO CORPORATION
If you have any inquiries or require further assistance, please contact one of the numbers below:
For Title Assistance:
Ft. Collins "FC" Unit
Daa Greenfield
3615 MITCHELL DRIVE
FORT COLLINS, CO 80525
Phone: 970-282-3649
Fax: 970-282-3652
For Closing Assistance:
Lajune Pearson
2170 35TH AVENUE
SUITE D
GREELEY, CO 80634
Phone: 970-339-9522
Fax: 970-339-9545
ESTIMATE OF TITLE FEES
Alta Owners Policy 1970
Tax Report
$623.00
$15.00
TOTAL $638.00
THANK YOU FOR YOUR ORDER'.
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Old Republic National Title Insurance Company
ALTA COMMITMENT
Our Order No. 1[x00072
Schedule A Cud. Ref.:
Property Address:
1. Effective Date: December 13, 1949 at 5:00 P.M.
2, Policy to be Issued, and Proposed Insured:
'ALTA" Owner's Policy $130,000.00
Form B-1970 (Amended 04-06-90)
Proposed Insured:
LAMBLAND INC., A COLORADO CORPORATION
•
3. The estate or Interest in the land described or referred to in this Commitment and covered herein is:
A Fee Simple
4. Title to the estate or interest covered herein is at the effective date hereof vested in:
COORS ENERGY COMPANY, A COLORADO CORPORATION
S. The land referred to in this Commitment is described as follows:
THE SOUTH 1/2; THE SW 1/4 OF THE NW 114; THES 1/2 OP THE SE 1/4 OF THE NW 1/4;
THE S 1/2 OF THE SW 114 OF THE NE 1/4; AND THE SE 1/4 OP THE NE 114. EXCEPT
THE WEST 100 FEET; ALL IN SECTION 36. TOWNSHIP 3 NORTH, RANGE 64 WEST OF THE
6TH P.M., WELD COUNTY, COLORADO.
•
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ALTA COMMITMENT
(Requirements) Our Order No. FC200072
The following are the requirements to be complied with:
Payment to or for the account of the gruttors or mongagors of the fun consideration for the estato or 'merest to be
insured.
Proper instrumeat(a) creating the estate or interest to be insured must be executed and duly filed for record, to -wit:
. WARRANTY DEED FROM COORS ENERGY COMPANY. A COLORADO CORPORATION TO LAMBLAND
INC., A COLORADO CORPORATION CONVEYING SUBJECT PROPERTY.
NOTE: ITEMS 1-4 OF THE STANDARD EXCEPTIONS WILL BE DELETED UPON RECEIPT OF
AN APPROVED ALTA SURVEY AND A NOTARIZED FINAL LIEN AFFIDAVIT.
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•
ALTA COMMITMENT
(Exceptions) Oar Order No. FC200072
The policy or policies to be issued will contain exceptions to the following unless the same are disposed
of to the satisfaction of the Company:
1. Rights of claims of parties in possession not shown by the public records.
2. Easements, or claims of easements, not shown by the public records.
3. Discrepancies, conflicts in boundary lines, shortage in area, encroachments, and any facts which a correct survey and
inspection of the premises would disclose and which are not shown by the public records.
4 Any lien, or right to a lien, for services, labor or material theretofore or hereafter furnished, imposed by law and
not shown by the public records.
5 Defects, liens encumbrances, adverse claims or other matters. if any. created, first appearing in the public records or
attaching subsequent to the effective date hereof but prior to the date the proposed insured acquires of record for
value the estate or interest or mortgage thereon covered by this Commitment.
6 Taxes and assessments not yet due or payable and special assessments not yet certified to the Treasurer's office.
Any unpaid taxes or assessments against said land.
Liens for unpaid water and sewer charges, if any.
9. Any claim, which arises out of the transaction creating the interest of the mortgagee insured by this policy, by reason
of the operation of federal bankruptcy, state insolvency, or similar creditors' rights laws.
10. RIGHT OF WAY EASEMENT AS GRANTED TO WELD COUNTY IN INSTRUMENT RECORDED
MARCH 17, 1909, IN BOOK 296 AT PAGE 149.
11. RIGHT OP WAY EASEMENT AS GRANTED TO CONTINENTAL OIL COMPANY IN INSTRUMENT
RECORDED SEPTEMBER 28, 1931, IN BOOK 920 AT PAGE 627.
12. OIL AND GAS LEASE RECORDED JUNE 30, 1969 UNDER RECEPTION NO. 1526807 IN
BOOK 605 AND ANY AND ALL ASSIGNMENTS THEREOF, OR INTEREST THEREIN.
13. OIL AND GAS LEASE RECORDED APRIL 12, 1972 UNDER RECEPTION NO. 1587454 IN
BOOK 665 AND ANY AND ALL ASSIGNMENTS THEREOF, OR INTEREST THEREIN.
14. TERMS, CONDITIONS AND PROVISIONS OP AFFIDAVIT OF PRODUCTION RECORDED JULY
10, 1978 AT RECEPTION NO. 1759559 IN BOOK 838.
05. RIGHT OF WAY EASEMENT AS GRANTED TO INDUSTRIAL GAS SERVICES INC 1N
ann/Cnn•a Co0oM
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ALTA COMMITMENT
(Exceptions) Our Order No. FC200072
The policy or policies to be issued will contain exceptions to the following unless the same are disposed
of to the satisfaction of the Company:
INSTRUMENT RECORDED OCTOBER 09, 1973, UNDER RECEPTION NO. 1622696 IN BOOK
701.
16. TERMS, CONDITIONS AND PROVISIONS OF MEMORANDUM OF CONTRACT RECORDED OCTOBER
04, 1974 AT RECEPTION NO. 1646043 IN BOOK 724.
17. RIGHT Op WAY EASEMENT AS GRANTED TO INDUSTRIAL GAS SERVICES INC IN
INSTRUMENT RECORDED NOVEMBER 26, 1974, UNDER RECEPTION NO. 1649235 IN
BOOK 727 AND AMENDED AUGUST 28, 1975 AT RECEPTION NO. 1668412 IN BOOK
746.
18. TERMS, CONDITIONS AND PROVISIONS OP KEENESBURG MINE SITE MAP RECORDED .TULY
02, 1980 AT RECEPTION NO. 1829039 IN BOOK 907.
09. TERMS, CONDITIONS AND PROVISIONS OF DEVELOPMENT PLAN MAP RECORDED FEBRUARY
10, 1981 AT RECEPTION NO. 1849391 IN BOOK 927.
20. RIGHT OF WAY EASEMENT AS GRANTED TO PUBLIC SERVICE COMPANY OF COLORADO IN
INSTRUMENT RECORDED SEPTEMBER 10. 1981, UNDER RECEPTION NO. 1868639 IN
BOOK 947_
21. TERMS, CONDITIONS AND PROVISIONS OF RESOLUTION RECORDED APRIL 15, 1993 AT
RECEPTION NO. 2329218 IN BOOK 1379.
22. RIGHT OF WAY EASEMENT AS GRANTED TO GUTTERSEN & COMPANY IN INSTRUMENT
RECORDED JANUARY 05, 1994, UNDER RECEPTION NO. 2367677 IN BOOK 1421.
23. ALL OIL. GAS, MINERALS AND OTHER MINERAL AND MINING RIGHTS AS RESERVED IN
INSTRUMENT RECORDED MARCH 15, 1996, UNDER RECEPTION NO. 2480989 IN BOOK
1537.
24. TERMS, CONDITIONS AND PROVISIONS OF SPECIAL REVIEW PERMIT RECORDED FEBRUARY
19, 1998 AT RECEPTION NO. 2594953.
onnloon'A 4000*
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•
•
•
LAND TITLE GUARANTEE COMPANY
DISCLOSURE STATEMENT
Required by C.R.S. 20-11-122
A) The subject real property may be located in a special taxing district.
B) A Certificate of Taxes Due listing each taxing jurisdiction may be obtained from the County
Treasurer's authorized agent.
C) The information regarding special districts and the boundaries of such districts may
be obtained from the Board of County Commissioners, the County Clerk and Recorder, or
the County Assessor.
Effective September 1, 1997, CRS 30-10-406 requires that all documents received for recording or filing in the
clerk and recorder's office shall contain a top margin of at least one inch and a left, right and bottom margin of
at lease one half of an inch. The clerk and recorder may refuse to record or file any document that does not
conform, except that, the requirement for the top margin shall not apply to documents using forms on which
space is provided for recording or filing information at the top margin of the document.
Note: Colorado Division of Insurance Regulations 3-5-1, Paragraph C of Articlo VII requires that "Every
title entity shall be responsible for all matters which appear of record prior to the time of recording
whenever the title entity conducts the closing and is responsible for recording or filing of legal
documents resulting from the transaction which was closed". Provided that Land Title Guarantee
Company conducts the closing of the insured transaction and is responsible for recording the
legal documents from the transaction, exception number 5 will not appear on the Owner's Title
Policy and the Lenders Policy when issued.
Note: Affirmative mechanic's lien protection for the Owner may be available(typically by deletion
of Exception no. 4 of Schedule B, Section 2 of the Commitment from the Owner's Policy to be
issued) upon compliance with the following conditions:
A. The land described in Schedule A of this commitment must be a single family residence which
includes a condominium or townhouse unit.
B. No labor or materials have been furnished by mechanics or material -men for purposes of
construction on the land described in Schedule A of this Commitment within the past 6 months.
C. The Company must receive an appropriate affidavit indemnifying the Company against un-filed
mechanic's and materiel -men's liens.
D. The Company must receive payment of the appropriate premium.
E. If there has been construction, improvements or major repairs undertaken on the property to
be purchased within six months prior to the Date of the Cornrritnent, the requirements to obtain
coverage for unrecorded liens will include: disclosure of certain construction information;
financial information as to the seller, the builder and or the contractor, payment of the
appropriate premium fully executed Indemnity Agreements satisfactory to the company, and,
any additional requirements as may be necessary after an examination of the aforesaid
information by the Company.
No coverage will be given under any circumstances for labor or material for which the insured
has contracted for or agreed to pay.
Nothing herein contained will be deemed to obligate the company to provide any of the
coverages referred to herein unless the above conditions are fully satisfied.
800/L00'd 69891
SNI't'IOD stio3 Os/ co29DO2 0L6 90:0t 6661.;2'�3a
Environmental Quality Laboratory
General Services [Building
(970)491-6503 or 491-4837
•
DATE: May 6, 2000
TO:
Bob Yost
A-1 Organics
6569 Highway 93
Golden, CO 80403
(303) 384-9232
FROM: Douglas A. Rice, Ph.D.
Laboratory Director
We received 5 biosolid samples on May 3, 2000. The samples were tested for
Salmonella populations
using and Wastewaterl 8`� edition the MPN ddescribed in (Part 9 b0 StandardMethods
for the Examinationof Water
).
Thanks for using the Colorado State University Environmental Quality
Laboratory for your microbiological testing.
Cc o O
University
Environmental 1lealth Services
Fort Collins. Colorado 80523-6021
(970) 491-6745
FAX: (970) 491-4804
littp://elteindatl.ehs.colostate.edu
LABORATORY RESULTS
Sample ID
CSO 112299
CSO 112399
CSO 112799
CSO 112099
CSLO - 420
Salmonella MPN 4/g
Dry weight
<1
<1
<1
<1
<1
%Solids
66.7
69.2
68.7
69.3
74.4
1
All of the biosolid samples exceed the EPA 503 standards for Class A material.
QC: Positive and negative controls were run with these samples and performed as expected.
Laboratory QC such as temperature, sterility, pH etc. are on record and can be obtained by calling (970)
491-6503.
•
Division of Administrative Services
•
•
THE UNIVERSITY OF ARIZONA
University Department of Microbiology and Immunology
Building #90
Tucson, Arizona 85721
AC 520 621 6163
FROM: Charles P. Gerba
Department of Microbiology and Immunology
Building #90
University of Arizona
Tucson, AZ 85721
Phone: (520) 621-6163
TO:Bob Yost
Al Organics
6569 Hwy 93
Golden, CO 80403
303-384-9232
May 22,2000
License# AZ0411
RESULTS OF VIRUS AND/OR PARASITE ANALYSIS
Location of Sample Collection Composite 9 Biosolids
Percent dry solids 51.6
Lab ID GOCO-15
Date of Sample Collection 4./19/00
Volume of Sample
Enterovirus (PFU)
(ASTM Method D4994-89)
Giardia lamblia
Cryptosnoridium
Ascaris lumbricoides
50 grams
0/4 grams(dry weight)
liters
liters
0/4
grams
Results approved by /2
C "
Patricia Orosz-Cog
Laboratory Supervi •r
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Keenesburg Ash Disposal Site
Ground -Water Monitoring Plan
September 25, 1998
2.0 PHYSICAL SETTING
Revision 1.0
Doty & Associates
This section describes the physical setting of the Keenesburg Ash Disposal Site.
Discussions are provided of topography, climate, geologic and hydrogeologic conditions,
surface water hydrology, existing water quality, and water use.
2.1 TOPOGRAPHY
Weld County lies in the Great Plains physiographic province. Although, the general slope
of the plain is to the east and southeast, the local topography is dominated by the South
Platte River and its tributaries, which have created various landforms including flood
plains, terraces, and uplands. Generally speaking, the topography in the north portion
of Weld County is gently undulating to rolling. South of the South Platte River valley,
the land surface is rolling to hummocky. The South Platte River valley itself is generally
planar to gently undulating. Elevations in the county range from a low of approximately
4,400 feet above sea level at the point of egress of the Pawnee Creek to highs of
approximately 6,200 feet above sea level in the northwest portion of the county.
The topography of the Keenesburg site is characterized by rolling ridges, consisting
primarily of eolian sand, stabilized by sage brush and prairie grass vegetation. The
ground slopes gently to the northeast toward Ennis Draw. Ennis Draw is at best an
ephemeral stream; based on careful observation in the area, no evidence of surface flow
has ever been found. Ennis Draw leads to the northwest, ultimately joining the Box
Elder Creek drainage system, which is in turn tributary to the South Platte River.
22 CLIMATE
Climatic conditions at the Keenesburg facility are generally mild and semi -arid.
According to mapping presented in Hansen et al. (1978), the mean annual precipitation
is in the range of 12 to 14 inches and the mean annual evaporation is greater than 70
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Keenesburg Ash Disposal Site
Ground -Water Monitoring Plan
September 25, 1998
Revision 1.0
Doty & Associates
inches. Also from this source, the mean annual relative humidity is between 50 and 55
percent and winds are generally to the north.
2.3 GEOLOGY
The Keenesburg site is located in the Denver structural basin, a major geologic feature
extending from Colorado into western Nebraska, Kansas and eastern Wyoming (Robson,
1987). The Denver Basin is a north -south trending asymmetrical downwarp involving as
much as 13,000 feet of sedimentary rock (Costa and Bilodeau, 1982). According to
mapping presented in Costa and Bilodeau (1982), the thickness of the sedimentary section
beneath the site is probably on the order of 10,000 feet.
The stratigraphic section at the site consists of the Precambrian crystalline basement rock
overlain by a thick section of pre -Cretaceous and Cretaceous sedimentary units. The
units beneath the upper -Cretaceous Pierre Shale are probably somewhat thicker than the
3,135 feet observed on the western flank of the basin (Weimer, 1973). The Pierre Shale
itself is on the order of 8,000 feet thick (Weimer, 1973) and consists of fossiliferous marine
shale, silt, and clayey sandstone, containing numerous calcareous concretions (McWhorter
and Ortiz, 1978). For purposes of this plan, the Pierre Shale is the lowest geologic unit
of interest, because it is considered the base of the water yielding units in the Denver
Basin (Robson, 1987).
The units above the Pierre Shale are as follows.
o Fox Hills Sandstone. The Fox Hills Sandstone is composed of calcareous marine
sandstone intermixed with dark -gray to black sandy shale and some massive white
sandstone (McWhorter and Ortiz, 1978). The thickness of the Fox Hills is reported
to range from 60 feet (Weimer, 1973) to 300 feet thick (Colton and Anderson,
1977).
o Laramie Formation. The Laramie Formation which directly overlies the Fox Hills
Sandstone is the uppermost bedrock unit at the site (younger consolidated
materials have been removed by erosion). The Laramie Formation consists of
yellow -brown and gray to blue -gray soft carbonaceous shale and clay -shale
interbedded with sand and shaley sand (McWhorter and Ortiz, 1978). It contains
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Keenesburg Ash Disposal Site
Ground -Water Monitoring Plan
September 25. 1998
Revision 1.0
Doty & Associates
cross -bedded gray to buff sandstone, which is slightly to well -cemented, and
contains coal in the lower portion (McWhorter and Ortiz, 1978).
Although individual Laramie coal beds are often lenticular, laterally discontinuous
and vary considerably in thickness, seven thicker and more continuous seams have
been identified in the lower Laramie (e.g., Amuedo and Ivey, 1975). The coal seam
mined at the Keenesburg site is the No. 7 seam (Coors Energy, 1996), which is
stratigraphically the highest and youngest seam in the Laramie coal group. The
No. 7 seam is the only coal seam that appears to be present in the lower Laramie
at the site and averages seven feet thick (Coors Energy, 1996). The depth to the
No. 7 seam averages about 120 feet (McWhorter and Ortiz, 1978).
Quaternary Deposits. The Laramie Formation is -covered with deposits of alluvium
and dune sand (McWhorter and Ortiz, 1978). The alluvial materials consist of
silty, clayey, fine to coarse grained sands with occasional gravel particles ranging
from 1/8 to 1.5 inch diameter (Coors Energy, 1996). The occurrence of the alluvial
materials is restricted to the Ennis Draw paleo-channel in the eastern third of
Section 25 (Coors Energy, 1996).
The dune sand (also known as blow sand) covers the alluvial materials or directly
overlies the Laramie where the alluvium is absent (McWhorter and Ortiz, 1978).
The dune sand is essentially of uniform thickness, averaging about 20 to 30 feet
(McWhorter and Ortiz, 1978). According to testing at an adjacent property, the
sand is very fine to fine grained with little or no clay (IC, 1992).
Consistent with the location of the site relative to the center of the Denver Basin, the
base of the Fox Hills dips gently to the southwest at about 1 degree (Robson et al., 1981).
The base of the Laramie probably has an equivalent dip. The top of the Laramie is an
erosional surface which appears to slope to the northeast toward Ennis Draw. The
location of the alluvium associated with Ennis Draw is shown on Figure 2 and a
generalized stratigraphic column for the site is presented as Figure 3. In addition, a
cross-section showing the relationship of the eolian sand and alluvial materials (as well
as other details) is presented as Figure 4.
2.4 HYDR0GEOLOGIC CONDITIONS
The significant aquifers of the Denver Basin include the alluvial and terrace deposits
along the major rivers and streams, the Dawson Aquifer, the Denver Aquifer, the
Arapahoe Aquifer, and the Laramie -Fox Hills Aquifer. The permeable units beneath the
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Keenesburg Ash Disposal Site
Ground -Water Monitoring Plan
September 25, 1998
Revision 1.0
Doty & Associates
Laramie -Fox Hills have not been developed for water supply because they are very deep
(below the relatively impermeable and thick Pierre Shale) and other shallower supplies
are available. Because the site is located on the northern flank of the basin, the younger
(stratigraphically higher) aquifers have been removed by erosion; only the Laramie -Fox
Hills is present beneath the site (Robson et al., 1981). The Laramie -Fox Hills Aquifer
consists of sandstones at the base of the Laramie Formation and the upper portion of the
underlying Fox Hills Sandstone.
The aquifers of the Denver Basin are largely recharged by infiltration into outcrops
(Robson, 1987). In the center of the basin, downward movement of water from overlying
units is also an important recharge mechanism (Robson, 1987). However, the vertical
movement of water from overlying units is probably an insignificant recharge mechanism
for the Laramie -Fox Hills because of the thick shales in the upper Laramie Formation
(Robson, 1987, page 23).
Robson (1983) estimates the following regional parameters for the Laramie -Fox Hills
Aquifer:
o average hydraulic conductivity is 0.05 feet per day, which is equivalent to 1.8x10
centimeters per second (curls);
o transmissivity is approximately 8 square feet per day; and,
o storage coefficient is 3 x 10�.
In the northern portion of the basin, flow in the Laramie -Fox Hills is away from the
outcrop along the mountain front toward the South Platte River (Robson et al., 1981) -
There is also considerable use of water from the Laramie -Fox Hills in the general area,
which has created a potentiometric trough trending to the northeast, located just west of
the site (Robson et al., 1981). Based on 1978 potentiometric conditions shown in Robson
et al. (1981), ground water beneath the site in the Laramie -Fox Hills is flowing to the
northeast under a gradient of approximately 0.002.
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2-4
Keenesburg Ash Disposal Site
Ground -Water Monitoring Plan
September 25, 1998
Revision 1.4
Doty & Associates
As stated earlier, the vertical movement of water from overlying units is probably an
insignificant recharge mechanism for the Laramie -Fox Hills. Therefore, the Laramie -Fox
Hills is not expected to be impacted by operations at the site. The hydrogeologic units
that have potential to be important are as follows.
1. Soils. Both the eolian sand and the Ennis Draw alluvial materials are relatively
permeable. IC (1992) reports an hydraulic conductivity of 1x104 cm/s for the
eolian sand, although the material is dry at their site and at the Keenesburg
facility. It appears that both the hydraulic conductivity contrast between the
eolian sand and the underlying Laramie Formation and the rate of recharge are
sufficiently small that ground water is not perched in the sand.
The Ennis Draw Alluvium is saturated and produces water to several wells and
windmills in the general area. McWhorter and Ortiz (1978) report a conductivity
of 1x10-4 cmis for a single slug test in this material (Table 2-1). Two of the wells
in the monitoring system are completed in this material (FPW and DH -96). Data
are too limited to define the direction of flow in this material; however, it can be
expected to have a component of flow parallel to the a_. -cis of the spatial distribution
of the material (see Figure 2).
2. Overburden. The silty claystones and sandstones above the coal in the upper
portion of the Laramie Formation are known locally as the overburden and have
been found to be water -bearing. Ground water occurs in these materials under
both confined and unconfined conditions (McWhorter and Ortiz, 1978) and flow is
generally to the northeast (Figure 5). McWhorter and Ortiz (1978) were of the
opinion that the ground water in the overburden was in good connection with, and
discharging to the Ennis Draw alluvium. Based on hydraulic testing described in
burden has a geometric mean hydraulic
McWhorter and 0rtizOcmas (Tablee2 1),ralthough this is likely an over -estimate of
conductivity of 3
the true value because of wellbore storage effects.
3. Coal. Ground water also occurs in the coal under confined conditions
overburden
had little or no communication with the overlying water in
(McWhorter and Ortiz, 1978). Ground -water flow in the coal prior to its removal
was mostly to the east (Figure 6). Based on testing described in McWhorter and
Ortiz (1978), the coal has a geometric mean hydraulic conductivity of 9x10"5 cm/s
(Table 2-1) although this too is likely an over -estimate of the true value because
of wellbore storage effects.
4. Cla a Backfill. The final unit in the hydrogeologic regime at the site is the mixed
overburden (known locally as spoil) replaced in the mining pit. Given the degree
of comminution and mixing produced by the excavation and replacement process,
f the replaced overburden is low and
it is likely that the hydraulic undisturbedconductivity
ooverburden (an opinion expressed by
may be similar to that of the
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Keenesburg Ash Disposal Site
Ground -Water Monitoring Plan
ptember 25, 1998
Revision 1.0
Doty & Associates
McWhorter and Ortiz, 1978). No data are available to quantify the as -placed
hydraulic conductivity.
Thus, the uppermost aquifer for the ash and mine waste rock disposal cells consists of the
Clayey Backfill, Overburden and Ennis Draw Alluvium, all of which form a single
interconnected system. The clayey backfill (spoil) and overburden portion of the system
is probably relatively impermeable, having an hydraulic conductivity on the order of
3x16"5 cm/s, or lower. The alluvium, on the other hand, is probably relatively permeable,
having a conductivity of 1x10' cm/s, or higher. The entire, interconnected system is
generally under unconfined conditions.
Prior to mining, flow in the overburden was generally to the northeast to its point of
discharge into the alluvium (Figure 5) and flow in the alluvium was also believed to be
to the northeast, although there is probably also a northwest component following the
alignment of the draw. Based on measurements made over the past five years, water
levels have generally been steady at all points monitored, with the exception of SMW-2
(Figure 7). The SMW-2 data demonstrate a fairly linear trend of rising water levels of
about 2 feet per year and even the most recent measurement indicates that the water
level at this location is approximately 26 feet lower than the pre -mining level.
A current potentiometric map (Figure 8) has been prepared for the site by superimposing
the December 1997 data on the 1978 potentiometric map (Figure 5). The current data for
three of the wells (DH -122, FPW and DH -96) agree well with the 1978 depiction and the
older potentiometric surface mapping was not changed in these areas. However,
considerable modification was required to fit the SMW-2 data into the older mapping
(only a slight modification was required for the AMW-1 data). The resulting
potentiometric surface map (Figure 8) implies that ground -water flow at the site is
dominated by recharge to the replaced overburden (i.e., all flow is inward).
The conclusion that recovery of the ground -water system following mining is still
occurring is somewhat surprising in light of the opinion expressed in McWhorter and
Ortiz (1978) that full recovery would occur in a period on the order of three years after
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Keenesburg Ash Disposal Site
Ground -Water Monitoring Plan
September 25, 1998
Revision 1.0
Doty & Associates
cessation of mining. Given that mining ceased in 1987, McWhorter and Ortiz (1978)
predict full recovery by about 1990. However, it is clear that the SMW-2 water level is
considerably lower than the pre -mining prediction for its location. The SMW-2 reference
elevation is reasonable for its location and the measurements are about half the depth of
the well; therefore, the data are reasonable and are accepted. In addition, it is clear that
the water level is gradually rising in the well; this is a long-term trend that is unlikely
to result from measurement error and is therefore accepted. Finally, it is clear that the
water level in SMW-2 is lower than the water level in all surrounding wells; therefore,
there must be at least a component of flow from all other well locations toward SMW-2.
Given all of the foregoing, it is concluded that recovery of the ground -water system is still
occurring.
In order to test the feasibility of this conclusion, simple closed -form calculations were
performed to predict the current recovery rate in the former pit area. There are two
sources of recharge to the system: infiltration and flow from undisturbed materials on the
pit perimeter. Infiltration recharge is probably on the order of 10 percent of the
precipitation, or roughly 1.2 inches of infiltration annually. Assuming that 20 percent of
the voids must be filled before the replaced overburden is resaturated, the 1.2 inches of
infiltration result in a recovery of about 0.5 feet per year. The recharge produced by flow
from undisturbed materials can be roughly estimated using the expression for steady
radial flow to a well. Assuming that the pit has a radius of 2,000 feet and the radius of
influence is 4,000 feet, an inflow corresponding to another 0.5 feet of recovery is predicted
(this calculation further assumes that three-quarters of the pit is in undisturbed
overburden and the other quarter is in Ennis Draw Alluvium and that 20 percent of the
voids in the replaced backfill must be filled to achieve resaturation). Thus, an overall
recovery rate of about 1 foot per year is estimated for the current conditions. Given the
uncertainties in the analysis, this is considered excellent agreement with the observed
recovery rate of about 2 feet per year and provides additional support to the conclusion
that the ground -water system is still recovering.
Keenesburg Ash Disposal Site
Ground -Water Monitoring Plan
September 25 1998
2.5 HISTORICAL GROUND -WATER DATA SUMMARY
Revision 1.0
Doty & Associates
The quality of the ground -water in the uppermost aquifer (the interconnected Clayey
Backfill, Overburden and Ennis Draw Alluvium system) is and always has . been of
relatively poor quality. Most of the wells produce samples with total dissolved solids
(TDS) concentrations in the 500 to 1,500 milligrams per liter (mg/1) range. The samples
from SMW-2, completed in the clayey backfill, exhibit TDS concentrations of
approximately 7,000 mg/l. The waters are mostly dominated by sulfate among the anions,
and by calcium and sodium among the cations. The trace metals are generally non -
detectable, except manganese which is present at relatively low concentrations (generally
less than 0.5 mg/1). The water quality database is presented in Appendix B, together with
temporal plots of some key parameters.
The temporal plots presented in Appendix B indicate fairly strong trends toward
increasing concentrations (particularly TDS, sulfate, chloride, calcium, and magnesium)
in the samples from wells DH -122 and FPW. The AMW-1 well samples may exhibit a
mild trend toward increasing concentrations of some of these parameters. :The samples
from wells DH -96 and SMW-2 do not exhibit temporal trends. DH -96 is completed in the
Ennis Draw Alluvium and is outside the radius of influence of drawdowns to the former
pit. SMW-2 is completed in clayey backfill and exhibits much more saline characteristics
than the other wells, perhaps due to intimate contact of the resaturating ground -water
with clay surfaces freshly exposed by the comminution involved in the excavation and
replacement *of the overburden.
The processes responsible for the higher salinity in the SMW-2 samples and the
increasing concentrations in samples from wells DH -122, FPW and AMW-1 are not fully
understood. However, they are clearly not impacts from the disposal operation. Because
ground -water flow is currently dominated by resaturation of the clayey backfill, the wells
exhibiting increasing concentrations (DH -122, FPW and AMW-1) are all in areas that
cannot be impacted by the disposal cells. The increasing concentrations (especially in
DH -122 and FPW) appear to be natural processes or are the result of impacts from off -site
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Keenesburg Ash Disposal Site
Ground -Water Monitoring Plan
September 25, 1998
Revision 1.0
Doty & Associates
activities of others. The concentrations in the SMW-2 samples, although higher than
those in the samples from the other wells, are too steady to result from a release from the
disposal cells. Therefore, the high concentrations in these samples appear to result from
a natural process, such as dissolution or mobilization of materials from the clayey backfill.
2.6 SURFACE WATER HYDROLOGY
There are no perennial streams or ponds within the site boundaries. In fact, there is no
evidence of surface runoff on -site or in the general vicinity of the site. Essentially all
precipitation apparently infiltrates the highly permeable mantle of sand and enters the
uppermost aquifer (as defined above). No water -formed erosional features such as rills
and gullies are evident. This is also true of Ennis Draw which is a broad, flat-bottomed
depression with no observable channel or gully.
2.7 LOCAL WATER USE
Based on discussions in McWhorter and Ortiz (1978), most of the residents in the site
vicinity depend on privately owned wells for domestic and livestock watering uses.
McWhorter and Ortiz (1978) report that of the 24 nearby wells, 7 (all located in close
proximity of the site) are completed in the Ennis Draw alluvium; the remaining 17 wells
are apparently completed in the Laramie -Fox Hills Aquifer. These conditions are not
likely to have changed since the preparation of McWhorter and Ortiz (1978) because of
limited development in the area. There is essentially no use of surface water in the
general site vicinity.
Keenesburg Ash Disposal Site
Ground -Water Monitoring Plan
Member 25, 1998
Table 2-1. Summary of Hydraulic Conductivity Tests
Revision 1.0
Doty & Associates
Hydrogeologic
Unit
Alluvium
Overburden
Well
122
172
117
118
119
Test
Slug
Specific Capacity
Recovery
Transmiasivlty
(ft2/min)
9.3e-03
3.2e-03
Storage
Coefficient
Saturated
Thickness
(ft)
42.78
26.41667
Hydraulic
Conductivity
(cm/s)
1.1e-04
6.2e-05
Specific Capacity
Recovery
Drawdown
Drawdown
1.1e-02
2.7e-03
26.41667
121.47
2.1e-04
1.1e-05
1.8e-03
2.0e-02
3.1e-03
0.00076
0.000087
121.47
117.9433
121.4433
7.5e-06
6.6e-05
1.3e-05
Geometric Mean
Coal
137 Specific Capacity
Recover).
1.0e-03
3.3e-05
6.4e -O5
9.7e-04
6 6.2e-05
116
Slug
1.7e-04
9.6e-06
61
62
Specific Capacity 2.6e-04
Recovery
Drawdown
60 Drawdowo
Geometric Mean
7.3e-04
2.2c-02
1.8e-02
0.00072
0.00054
7.5 1.8e-05
7.5
4.9e-05
7.5 1.5e-03
7.5
1.2e-03
9.3e-05
2-10
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4.0 GEOLOGY AND HYDROGEOLOGY
4.1 Geologic Overview
The site is situated on the northeast flank of the Denver Ground -Water Basin which extends
from Greeley in the north to Colorado Springs in the South and from the Front Range in the
west to near Limon in the east. The greater Denver Basin including the Denver Ground
Water Basin, can be traced on contour maps of the top of the Precambrian Basement and
extends north into southeastern Wyoming and southwestern Nebraska. Thc, deep. st portion
of the Basin is beneath the city of Denver where the Precambrian exists approximately 7000 -
feet below sea level. Both the Denver Basin and the Front Range Uplift are a result of
orogenic movements of the earths crust which began in the late Cretaceous and continued
into the Miocene (75 million years to 15 million years ago). The basin forms a bowl in
which the bedrock formations dip steeply to the east on the west side of the basin adjacent to
the Front Range. The bedrock formations on the north, south, and east flanks of the basin
dip gently toward the center of the basin beneath Denver.
Figure 4.1 is a regional geologic map of the area surrounding the site. The bedrock
materials beneath the site range in age from Precambrian to the late Cretaceous Laramie
Formation. Figure 4.2 is a generalized stratigraphic section. Bedrock formations above the
Laramie are not present at the site; however, the site is mantled by wind-blown Quaternary
eolian sands.
The Cretaceous Pierre Shale lies conformably on top of the Niobrara Formation znd is
generally considered to be the base of the Regional Denver Basin Aquifer system due to its
thickness (8,000 feet in some areas) and its minimal permeability. Only the Formations
above the Pierre Shale will be discussed here.
Immediately above the Pierre Shale is the Fox Hills Sandstone. The Fox Hills Sandstone
represents a t-ansitional phase between the underlying, predominantly marine sediments and
the overlying predominantly continental sediments. The Fox Hills is a tan, cross -bedded
sandstone grading downward into a brown, fine-grain, silty sandstone interbedded with
shale. The thir.kness of the Fox Hills Sandstone ranges from 300 to and 500 feet. The
contact between the Pierre and the Fox Hills is transitional.
The Laramie Formation rests conformably on top of the Fox Hills. In some areas of
investigation, the contact between the Fox Hills and the Laramie appears to be transitional.
The Laramie Formation is continental in origin with the sediments deposited in brackish or
fresh -water fluvial environments. The Formation typically consist of interbedded gray
shales, clays, clayston:.s, lignites, and sandstones. The lignite or coal units represent
brackish or stagnant backwater deposits with significant volumes of organic deposits. The
clays and claystones were deposited in backwaters or inter -channel waters that were fairly -
well drained.
•
4-1
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•
. 'AMINT
'41 .
t.� .: �a�� ��
dia�`u-44 r,. Qg��
Vir 1111.6,A ,..,,,„..„,.....
„.,..„,_„,„.„,„......„,...,
.,,.,...„.....----...----, ,,,k
ilr'irolir-r-irgitu-41
-- / Cf/A,JECAPM
ir Irfe r
it
Lich I)M:.!pI
ial
Qe
\$,
LEGEND
Oa = MODERN ALLUVIUM —Includes Piney Creek Alluvium and younger deposits
Qg = GRAVELS AND ALLUVIUMS (PINEDALE AND BULL LAKE AGE) —Includes
Broadway and Louviers Alluviums
Qe = EOLIAN DEPOSITES—Includes dune sand and silt and Peoria Loess
Tkdl = DENVER FORMATION OR LOWER PART OF DAWSON ARKOSE—Arkosic
sandstone, shale, mudstone, conglomerate, and local coal beds
Qgo = Older Gravels and Alluviums (Pre —Bull Lake Age); Includes Slocum,
Verdos, Rocky Flats, and Nuss bourn —Alluviums in the east, and
Florida Bridgetimber, and Bayfield Gravels in the South—west.
Kl = Laramie Formation —Shale, Claystone. Sandstone, and major coal beds.
Kf = Fax Hills Sandstone —Tan, Cross —bedded Sandstone with innerbedded
marine shales.
Tkda = Denver and Arapahoe Formations —Sandstone, Mudstone, Claystone.
and conglomerate.
0 5 10 MILES
APPROX, SCALE
INDUSTRIAL COMPLIANCE
1746 COLE BLVD.
BLDG. 21 SUITE 300
GOLDEN. COLORADO 80401
FIGURE 4.1
GEOLOGIC MAP OF SITE
WASTE SERVICES COMPANY
PROJECT: SANITARY LANDFILL
pRahrr No. 2-3716
Inot r,rt 01 /30/92
mecum �. INDUSTRIAL COMPLIANCE
rtuovsrW,H.T. IoppRoarri or, .M.A.M.
I ELLJWIE, FL4-1
fal
Age
Quaternary
Cretaceous
Jurassic
TR
Perm
Penn
PC
Unit Thickness
Qe 5'-40'
Lithologic Description
EOLIAN DEPOSITS: Includes dune sand and silt
and Peoria Loess.
ICI 300'-400' LARAMIE FORMATION: claystone, shale, and
sandstone, light gray to brown.
Kfh 50' FOX HILLS FORMATION: silty sandstone with
interbedded shales, gray to brown.
Kp 6000' + PIERRE SHALE: shale, sandy shale, and some
sandstonelsiltstone lenses near the top, brown to
dark gray -brown, friable.
Kn 350' NIOBRARA FORMATION: calcareous shale and
limestone, gray to grayish -yellow.
Keg 450' CARLILE SHALE: silty claystone and siltstone,
olive -gray,
GREENHORN LIMESTONE: limestone, claystone,
and siltstone, gray,
GRANEROS SHALE: siltstone and claystone, dark
gray.
Kd 230'
] mr 380'
DAKOTA GROUP: sandstone siltstone,
carbonaceous shale, and conglomerate near the base,
light to dark gray.
MORRISON AND RALSTON CREEK
FORMATION: shale, claystone, sandstone, and
some thin limestone beds, varied colors.
Je 50' ENTRADA FORMATION: sandstone, light brown
to gray.
TRPI 470' LYKINS FORMATION: shale, siltstone, and
limestone, red to red- brown.
P1 230' LYONS SANDSTONE: sandstone, orange to pink
to gray.
PPf 900' FOUNTAIN FORMATION: sandstone, siltstor e,
and conglomerate, with thin shale beds, red -brown.
Undifferentiated Precambrian igneous rocks.
INDUSTRIAL COMPLIANCE
1746 COLE BLVD.
El SUITE 300
BLDG.
GOLDEN, COLORADO 80401
FIGURE 4.2
STRATIGRAPHIC SECTION
WASTE SERVICES COMPANY
ate.
SANITARY LANDFILL
FltoAct
2-3716 O1�OJ92
. p►, _
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The sands and sandstones represent ancient stream -channel deposits. They tend to be
represented by cleaner, coarser sands near the center of the channel and grade outward to
finer grain sands and silts. The individual lithic units are characteristically lenticular and
laterally discontinuous in nature and are thus difficult to correlate over distance.
The bedrock unit immediately underlying the surficial materials at the proposed landfill site
is the upper Laramie. The Laramie Formation is generally divided into an upper and lower
member. The lower Laramie is distinguished from the upper Laramie by the presence of
lenticular coal beds. The uppermost coal bed defines the top of the lower Laramie. Review
of geologic and hydrogeologic data from the adjacent inactive Keenseburg Coal Mine
indicates that the lower Laramie is approximately 280 -feet thick in the area of the site while
the upper Laramie ranges from 60 to 180 feet thick.
Above the Laramie, the site is mantled by Quaternary windblown eolian sands, except for
the far northwestern corner which is covered with mixed outwash deposits. The thickness of
these sands across the site ranges from 5 feet to over 30 feet and the sands are lithologically
consistent. They are very -fine -to -fine-grained with little or no clay. Near the ground
surface they contain varying amounts of silt but grade downward to a generally-siltier phase.
The bedrock formations dip gently to the.southwest (1 to 3 degrees) toward the center of the
basin. The upper limit of competent bedrock beneath the site is controlled by, and generally
mirrors the northwest dipping surface topography.
4.2 Hydrogeologic Overview
The site is not located within any ground -water management districts designated by the
Colorado State Engineers Office. The four major bedrock aquifers existing in the Denver
Basin, from oldest to youngest, are the Laramie -Fox Hills, the Arapahoe, the Denver, and
the Dawson. The Pierre Shale which underlies the Fox Hills is considered to be the base of
the major Denver Basin Aquifer system due to its thickness (8,000 feet in some areas) and
its low permeability. The Dawson, Denver, and Arapahoe Aquifers outcrop south and thus
are not present beneath the site.
The Fox Hills and sands of the lower Laramie Formation are commonly grouped together as
one system. The resulting Laramie -Fox Hills (LF) Aquifer represents the only regional
bedrock aquifer system beneath the site. Data from the Keenseburg Coal Mine Study
indicate that the top of the Laramie -Fox Hills Aquifer is 280 feet below the ground surface.
This data is consistent with data obtained from maps of the Laramie -Fox Hills Aquifer
published by The Colorado Division of Water Resources (Vanslyke and others, 1988) that
showthe top of the Laramie -Fox Hills Aquifer to be approximately 330 feet below the
ground surface at this site. Comparison of the contour maps structured on top and on the
base of the Aquifer indicate that it is approximately 300 -feet thick beneath the site. Water
in the LF Aquifer is generally classified as a sodium bicarbonate type. Review of the water
wells apparently completed into the LF Aquifer within two miles of the site indicate that the
majority of the wells supply water for livestock purposes.
•
4-4
•
•
•
The Potentiometric Surface Map of Laramie -Fox Hills Aquifer (Robson and others, 1978)
indicates a regional flow direction in the aquifer to the north northeast where discharge most
likely occurs into the alluvial aquifers of the South Platte River or its tributaries.
4.3 Economic Geology
The Denver Basin is generally known for its oil and gas reserves. The vast majority of
these reserves are produced from sands in the early -Cretaceous Dakota Group with minor
amounts produced from the mid -Cretaceous Niobrara Formation and the late -Cretaceous,
lower -Pierre Formation. There is significant gas production to the west, north, and '.ast of
the site although no evidence of production in the immediate vicinity of the site exists. Oil
is produced in the Prospect Valley area approximately 8 -miles southeast of the site.
Significant thicknesses of coal are known to exist in the lower Laramie Formation but their
value is economically dependant on grade and overburden thickness. The adjacent inactive
Keenseburg Coal Mine operation (currently under reclamation) exists approximately 1.5 -
miles east of the northeast boundary of the site. No economic thicknesses of coal were
found in the intervals penetrated during the site -specific drilling program.
4.4 Potential Geologic Hazards
The closest fault experiencing displacement during Holocene time is approximately 24 miles
east of the site. It is classified with an age of displacement during the Quaternary Period.
The site is not located in a seismic impact zone. A seismic impact zone is defined as an
area having a 10 percent or greater probability that the maximum expected acceleration in
hard rock, expressed as a percentage of the earth's gravitational pull, will exceed 0.10g.
USGS Open File Report 82-1033 indicates that the maximum horizontal acceleration
expected in the rock in the area surrounding the site, within a 250 year period, is
approximately 0.07g.
The site is not located in a geologically unstable area. The Colorado Landslide Hazard
Mitigation Plan categorizes the area encompassing the site as having a low potential for
landslides. The terrain is nearly -level to moderately -sloping plains ds overlain
rwith�a by
wsandy soils.
The surface soils consist of moderately -to -excessively -draining
swell potential.
Furthermore, once site excavation begins, side slope grades will be maintained in a fashion
that alleviates any stability problems.
There are no geomorphological features on site such as caverns or karst topography which
could present stability problems.
The relationship of the site to flood plains is discussed in Section 2.3.1 of this document.
4.5 Site Description
The site is located in an area of generally low topographic relief on slightly -to -moderately -
undulating plains. Vegetation is moderate and typical of the fairly -dry Colorado plains.
There are no significant depressions found on the site.
4-5
•
The site straddles a mildly -undulating northwest -southeast trending ridge. The highest
portion of this ridge exists in the southern portions of the proposed fill area at an elevation
of 4930 -feet MSL (mean sea level). From here the ridge slopes downward to the northern
limits of the proposed filling area at an approximate 1 -percent grade to an elevation of
approximately 4867 -feet MSL. The eastern and western flanks fall off at approximately 1.4
to 2 -percent grades. This ridge forms a surface -water divide. The eastflank dips toward
Ennis draw approximately 1.75 miles to the east of the site while the west flank dips toward
Box Elder Creek approximately 2 miles west of the site.
4.6 Field Investigation and Methodology
IC conducted a detailed field investigation to assess the site -specific geologic and
hydrogeologic conditions. The data accumulated during this field program was used to
verify the suitability of the site for potential use as a municipal solid waste sanitary landfill
and to assist in the design of an environmentally -sound facility that would meet all
applicable Federal and State regulations.
Components of the field program included soil borings, piezometer installations, ground-
water monitor well installations, ground -water sampling, test pits, geotechnical materials
testing, slug -out permeability tests, and packer permeability tests. Each of these components
is discussed below. Findings and conclusions are discussed in later sections of this
document.
•
•
4.6.1 Soil Borings
A total of 50 soil borings were advanced at the site at the locations shown on Plate 4 to
characterize the hydrology and subsurface materials. The soil borings on the logs were
designated with either an "SB" label for a soil Boring, a "PZ" label for a piezometer or
"PK" for packer test. All "SB" borings were converted to a "PZ" designation for map
labeling purposes. The portion of the site proposed for filling was evaluated by 36 soil
borings. The location of the borings was determined by topographic and areal coverage
considerations that permitted the generation of cross sections which depict the site geological
and hydrogeologic conditions. Each boring was surveyed for ground -level elevation and
horizontal coordinates to facilitate correlation of subsurface features. The cross-section
locations are illustrated in Plate 4 and the actual cross -sections are included on Plates 5, 6,
and 7.
The majority of the borings were advanced with a CME-55 drill rig using 6 or 8 -inch
outside -diameter hollow -stem auger and continuous -core equipment. The continuous -core
equipment was used from the ground surface to the total depth of the boring to allowing
detailed examination of the entire thickness of strata penetrated. The core was laid out in
the proper orientation next to each boring to allow additional examination and to assist in
correlation with other borings. A soil boring log detailing the boring location, drilling and
sampling method, the lithology, well or piezometer completion data, and other pertinent
information was completed during drilling for each boring advanced at the site. Copies of
the soil boring logs are included in Appendix C. Graphic lithologic logs are included in
Appendix D.
4-6
•
•
Nine borings were nested next to other borings and completed as piezometers as discussed
below to gather additional hydrogeological information. In the case of nested borings,
where the initial boring was drilled with continuous core equipment and the lithology
known, the second boring was advanced with 4 -inch diameter solid stem auger to a
predetermined depth and no continuous core was collected.
4.6.2 Piezometer Installations
Of the 50 borings, 44 were completed as piezometers to asses ground -water conditions
beneath the site. All piezometers are designated with a "PZ" label corresponding to the
label of the boring (ie. soil boring SB-I became piezometer PZ-l). The piezometers
consisted of 1 -inch -diameter, Schedule -40, PVC pipe joined with glue joint couplings. A
specific interval of the pipe was hand slotted to allow infiltration of ground water from the
water bearing intervals into the pipe. The pipe was placed in the boring and the annular
space surrounding the pipe was backfilled with clean sand from the base of the boring up to
a specific depth. A bentonite seal was placed on top of the sand to isolate the zone of
interest from shallower zones and surface infiltration. The remainder of the boring was then
backfilled to the ground surface with cuttings. In some instances, a bentonite seal was also
placed at the surface to further minimize potential surface infiltration. Piezometer
completions are illustrated in Appendix D.
The piezometers were checked periodically with an electronic water -level indicator to detect
the presence of and measure elevations of ground water. Some of the piezometers (PZ-27,
PZ-28, PZ-30, PZ-32, PZ-33, PZ-35, PZ-36, PZ-37, PZ-38, PZ-39) were paired with initial
piezometers to evaluate if the detected water existed under confined conditions. Piezometer
PZ-34 was completed with two piezometers (dual completed) in the same hole to monitor
distinct intervals.
Each piezometer was surveyed for horizontal coordinates and elevation at ground level and
at the top of the pipe. For consistency, water levels were measured from the top of the pipe
rather than from ground level. A barb -wire fence was installed around each piezometer to
protect it from damage.
4.6.3 Ground -Water Monitor Well Installations
Three ground -water monitor wells were installed at the site. The wells were completed as
follows:
1) The boring was advanced using 8 -inch outside diameter hollow -stem auger.
Continuous cores were collected.
2) Two-inch diameter, flush joint, thread -coupled, Schedule -40 PVC pipe was
placed to the total depth of the boring inside the hollow stem auger. The
bottom 10 or 20 feet of pipe consisted of 0.02 inch factory -slotted PVC
screen.
3) The annular space around the pipe was backfilled through the hollow -stem
auger from the bottom to approximately 3 feet above the screened interval
with a graded, 10-20 silica sand.
4-7
•
4) A 3 -foot bentonite seal was placed above the sand pack to isolate the zone of
interest from shallow infiltration.
5) A cement grout was placed from top of the bentonite seal to the ground
surface.
6) A steel protective cover with a locking cap was installed over the well to
protect it from damage and prevent unauthorized access.
A barb wire fence was placed around each monitor well to prevent access and damage.
Specific monitor well construction information is included in Appendix D.
4.6.4 Ground -Water Sampling
Each of the three ground -water monitoring wells (MW -01, MW -02, and MW -03) was
developed and sampled to gather data on ground -water quality. Prior to sampling, the water
level in each well was checked and the volume of ground water contained in the well was
calculated. The wells were purged and sampled with a bottom -loading PVC bailer. Each
well was sampled with a dedicated bailer and bailing rope to prevent cross -contamination
between samples. Other equipment that came into contact with the ground -water samples
was decontaminated with deionized water before beginning sampling and between wells.
Each of the three wells bailed dry prior to the extraction of three full volumes. Parameters
of pH, specific conductivity, and temperature were monitored through the purging process
following the extraction of each volume of water. Following sufficient recharge, ground
water was extracted with the bailer and poured into prepared sample bottles. Ground water
to be used for dissolved metals analysis was filtered in the field with a 0.45 -micron filter
prior to placing it in the sample bottle. The samples were immediately put in a cooler, kept
cool, and delivered to the laboratory within 24 -hours of collection. Ground water analytical
results, field data and chain of custody forms are included in endix H
4.6.5 Test Pits
A total of 13 test pits were excavated across the site to evaluate the suitability of the
surficial sands for use as drainage material. The depths of the test pits varied upon the
material encountered but were a maximum of approximately 15 feet deep. The pits were
completed with a backhoe and samples of the sand believed to possess the best potential for
drainage use were collected for laboratory analysis. Selected samples were submitted for
grain -size analysis, percent passing the #200 sieve, and permeability testing. Locations of
the test pits are shown on Plate 4.
4.6.6 Collection of Representative Site Materials for Geotechnical Testing
Representative soil and bedrock materials were collected during the field. program and
ction.
The submitted for of borings and analysis
est pits where samplesw
erecollected are for use in landfill shown onPlate4.
The locations g
Representative samples included:
•
4-8
•
•
1) The surficial sand collected from test pits as described above submitted for
grain size analysis and permeability analysis.
2) Relatively -undisturbed samples of the surficial sands, weathered bedrock, and
competent bedrock materials submitted for natural moisture and in -place
permeability analysis.
3) Samples of weathered and competent bedrock materials submitted to define
natural and recompacted characteristics including grain size and consolidation
analysis, Atterberg Limits, Optimum Moisture and Maximum Density
Analysis.
Relatively -undisturbed samples were collected in brass liners in a California -Barrel Sampler.
The California -Barrel Sampler was driven into the material with a 140 -pound hammer falling
approximately 30 -inches. The number of blows of the hammer and corresponding
penetration were recorded on the boring logs. The samples to be submitted were left
undisturbed in the brass liners and sealed for delivery to the laboratory to prevent moisture
loss. The remaining samples were collected from the continuous core samples and/or the
auger cuttings.
4.6.7 Slug -Test Permeability Testing
Permeability testing was conducted in each of the three ground -water monitoring wells
• shown on Plate 4. Prior to initiating the test, the static water level was measured in the
well. A 5 foot long by 1.25 -inch internal -diameter PVC bailer was lowered into the well
and allowed to fill to capacity. The bailer was then rapidly withdrawn and the water level
indicator lowered into the hole. The water level was measured at specific time intervals
with an electronic water level probe as the well recovered and the rise in water level was
plotted against time using the method developed by Hvorslev to determine the permeability
of ter Bearing interval in centimeters per second. Results of the slug testing are in
Section 4.8.3. .
4.6.8 Packer Test Permeability
Six of the 50 borings were used t valuate the permeability of in -situ materiaji iby
5 t n
e
packer test method. Borings used for packer tes y
Plate 4. One packer test was conducted in each of the six borings. Each of the three
material categories (surficial sand, weathered bedrock, and the competen - _ : . • were on
evaluated by two packer tests. Results of the Packer testing are ection 4.8.3.
To complete this testing, a 4 -inch diameter borehole was drilled with solid -stem auger.
Following completion of the boring to total depth, the augers were withdrawn from the
boring and a packer attached to hollow piping was lowered down the borehole and inflated
with compressed air at the top of the interval to be tested. The hollow piping extended from
the surface down the borehole and through the middle of the packer. The piping was open
beneath the packer to allow the interval between the base of the packer and the bottom of
the hole to be filled with water. At the surface, the piping was attached to a manifold with
a pressure gauge and flow meter which were connected to a water tank. The hole above the
packer was filled with water to visually check if leakage around the packer was occurring
4-9
•
during the test. The test interval below the packer was filled with water prior to beginning
the test and the initial flow meter reading was recorded. Water was then pumped at
constant pressure through, the hollow pipe into the test interval and the volume of water
accepted by the tested interval versus the elapsed time was recorded. When sufficient data
was obtained through pumping at a specific pressure, the pressure was increased by 5
pounds per square inch (psi) and held constant while the rate of infiltration was recorded.
All tests were initiated at 10 psi pumping pressure and generally were increased in 5 psi
increments.
•
•
4.7 Site Geology
Materials encountered at the site during the site -specific boring program can be divided into
three basic types. The uppermost type consists of windblown eolian sands. Below the
eolian sand exists varying thicknesses of weathered Laramie Formation bedrock materials
which consist of clays containing slight -to -moderate amounts of fine sands and silts.
Beneath the weathered bedrock are more competent, less weathered bedrock clays and
claystones of the upper Laramie Formation. For the purposes of this discussion, and the
associated maps, the top of bedrock was chosen as the upper limit of the competent bedrock
as defined by stiffness and degree of weathering. Boring logs are included in Appendix C
and lithologic logs are included in Appendix D. Cross -sections produced from boring and
water level data are included on Plates 5, 6, and 7. The sections show present topography,
static water levels, construction depths and lithology across the site.
4.7.1 Surficial Materials
The site is mantled by eolian sands ranging in thickness from 5 -feet at PZ-11 to 36 -feet at
PZ-15. All soil borings with the exception of PZ-10 and PK-6 (a packer test hole)
penetrated the entire thickness of eolian sands. The average thickness of the eolian sand
across the site is 17 feet. The eolian sands were uniformly very -fine -to -fine grained, round
to subround, and slightly -to -moderately silty at the surface. They commonly graded
downward to a more silty material occasionally containing minor amounts of clay.
Occasional lime cement (caliche) deposits were observed although no extensive cementation
was observed in the surficial sands. The eolian sands originate from windblown alluvial
sources located in nearby stream valleys with deposition thicknesses and grain size
dependant upon wind direction and energy.
Soils in Colorado (including the vicinity of the site) have been mapped by the U.S. Soil
Conservation Services (SCS, 1980); however, the SCS states that the available soils
information is highly generalized and may not accurately reflect local variations of the
existing conditions. Moreover, this information is only relevant to a maximum depth of 60
inches.
The SCS distinguishes four soil types across the site (Figure 4.3). Roughly 98 -percent of
the site soils consist of Osgood and Valent sands. The remaining approximately 2 -percent of
the site is covered with Olney loamy sand which exists in the far northwest corner.
The Osgood sand (0 to 3 percent slopes) is a deep, well -drained soil on smooth plains that
forms in eolian sands. The surface layer in the Osgood sand is typically grayish brown sand
about 22 -inches thick. The subsoil and substratum is a brown to light -brown loamy sand or
4-10
•
•
LEGEND
44 a OLNEY LOAMY SAND 1-3% SLOPES
49 OSGOOD SAND 0-3% SLOPES
69 - VALENT SAND 0--37.. SLOPES
70 = VALENT SAND 3-97SLOPES
s,
fl 1/2
APPROX. SCALE
1 MILE
GENERATED FROM SOIL SURVEY OF WELD COUNTY
(SOUTHERN PART) SHEET NUMBER 24.
INDUSTRIAL COMPLIANCE
1746 COLE BLVD.
BLDG. 21 SUITE 300
80401
GOLDEN. COLORADO
FIGURE 4.3
SITE SOIL MAP
WASTE SERVICES COMPANY
ate,,,.
SANITARY LANDFILL
2-3716 LIAh co*tm 01 /30/92
roc
INDUSTRIAL COMPLIANCE
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DRAIllintW.H.T, Io o s en J.L.P. 1Ef ►omp F1G4-3
•
•
sandy loam which correlates to the silty sand observed during the drilling program.
Permeability is moderately rapid and available water capacity is moderate. Surface runoff is
very slow and the erosion potential is low.
Two classes of Valent sands are found on the site (0 to 3 -percent slopes and 3 to 9 -percent
slopes). Both types are deep, excessively -drained soils formed in eolian deposits. The
surface layer and underlying layers are a brown sand with no mention of increased loams or
silts with depth. Both of these soils include small areas of caliche within 40 inches of the
surface that were observed during the drilling program and described on the boring logs as
white lime or caliche cementation. The permeability is rapid and the available water
capacity is moderate in each of these soils. The surface runoff is slow and the erosion
ha7- rd low in each of these soils.
The Olney loamy sand covers a small portion of northwest portion of the site. The Olney
loamy sand is listed as a deep, well -drained soil formed in mixed outwash deposits.
Generally, the term outwash is associated with glacial deposits, but it is assumed that
outwash as it is used here refers to fluvial type deposits. The surface layer is grayish brown
loamy sand about 9 -inches thick. The subsoil is yellowish -brown sandy clay loam about 15 -
inches thick and the substratum is listed as a very pale brown, calcareous, fine sandy loam.
The permeability and available water capacity are moderate. Surface runoff is slow and the
erosion ha7-rd is low.
4.7.2 Weathered Bedrock Materials
Weathered bedrock materials were encountered immediately below the eolian sands across
the site. A total of 38 borings penetrated the full thickness of the weathered bedrock.
Thicknesses of the weathered bedrock varied greatly and ranged from 1 -foot thick in PZ-1b
to 25 -feet thick in PZ-8 and PZ-9. Generally, the thickest intervals of weathered bedrock
occurred in very -slight depression features such as exist around PZ-8 and PZ-9. The
observed weathered bedrock materials were predominantly brown to red -brown and brown,
soft to firm, moderately -plastic clays with highly variable sand and silt content.
Occasionally the sand content was sufficient to classify the material as a clayey sand. Minor
amounts of gravel were observed in the weathered bedrock clays of a few borings such as
PZ-8, PZ-9 and PZ-12. Much of the weathered bedrock clays were oxidized and caliche
deposits were common.
4.7.3 Bedrock Materials
Materials of the upper Laramie Formation represent the bedrock in the interval evaluated
beneath the entire site. Although thin intervals within this bedrock unit exhibit vertically -
limited signs of weathering, it is distinguished from the weathered bedrock discussed above
by the degree of weathering. The top of the competent bedrock materials, hereafter referred
to as bedrock, is shown on the bedrock contour map on Plate 8 and was defined as the point
where the weathering decreased sufficiently for the clays to remain predominantly gray in
color and become very firm to hard. As expected, the top of bedrock generally mirrors the
topography and exhibits the same prominent ridge, or nose, with a high point in the
southern end of the site dipping to the northwest and with the flanks dropping off to the
west and east.
4-12
•
•
•
A to 38 borings penetrated at least 10 feet of the bedrock with the average'penetra
thickness b ing 35 feet. The lithology of the bedrock consisted primarily of ray clans -end
Llaystones"with the thin, discontinuous silty and sandy intervals characteristic o e Laramie
c LFormation. Most borings contained vertically -limited zones of chemical and physical
alteration expressed as oxidized zones or limonite concretions, on the order of 2 -inches
thick. These zones are believed to be representative of previous erosional surfaces and were
observed to be horizontally oriented. Lignitic deposits generally less than 6 -inches thick
were also common throughout the site.
The majority of the borings penetrating the claystone bedrock exhibited moderate -to -high
degrees of horizontally -and -vertically oriented fracturing. These fractures probably
originated from stress relief during unloading periods and enhanced through weathering. All
observed fracturing was associated with oxidation. Some evidence of possibly random -
oriented fracturing was observed, as in PZ-20 at 45 feet in which 45 to 60 -degree fractures
were described. The upper 50 feet of bedrock generally contained a fairly high degree of
fracturing which decreased with depth. Borings which penetrated a greater thickness of
bedrock such as PZ-31 and PZ-34 indicated that the degree of fracturing decreased
significantly between 100 and 110 -feet below ground surface. Most fracturing observed in
the boring program indicated preferential horizontal orientation with possible randomly
oriented vertical fracturing.
While most of the borings contained varying thicknesses of sandy clay intervals
representative of overbank deposits, 6 -borings (PZ-3, 8, 12, 14, 25, and 29) contained a
significant thickness of water -bearing gray sands. All of these sands were very -fine to fine-
grained and silty or clayey near the top and graded downward to materials containing less
silt and increasing in grain size. These sands represent meandering channel sands which
bisect the interchannel clays, silts, and lignites. Evidence that these sands represent channel
environments is best illustrated on Cross -Sections D -D' on Plate 6 and B -B' on Plate 5.
One of the thickest sections (22 -feet) of saturated channel sand seen was in SB-29 on Cross -
Section D -D'. This sand was penetrated at an elevation of 4834 -feet MSL. Soil Boring SB-
24 is located approximately 450 -feet east of SB-29 and reached an elevation of 4828 -feet
MSL. SB-24 did not penetrate the channel sand, indicating the laterally discontinuous
pattern of the channel sands. Borings PZ-3 and PZ-14 (Plate 5) encountered approximately
5 feet of saturated channel sand. Boring PZ-15 which is located between PZ-3 and PZ-14
did not encounter this sand although a sandier clay interval was observed at approximately
the stratigraphically-equivalent interval. This sandy clay interval probably represents
channel margin or levee deposits. Borings PZ-7 and PZ-31, adjacent to PZ-14 and PZ-3
respectively, did not encounter any sandier interval at the stratigraphically-equivalent depth.
4.7.4 Geotechnical Properties of On -Site Materials
Samples were collected during the site specific investigation to assess the characteristics of
in -situ materials as well as to assess the materials available for use in landfill construction
components such as low -permeability liners and drainage layers. Representative samples of
the eolian sands were collected to evaluate its suitability for use as a drainage material.
Samples of the weathered and unweathered bedrock were collected to assess the potential for
their use in low -permeability soil liners. In addition, relatively -undisturbed samples of the
sand, weathered bedrock, and bedrock were collected to evaluate the in -situ vertical
permeabilities of on -site materials. Sample collection methods are described in Section
4-13
•
•
4.6.6. Table 4.1 lists the location and depths of these samples as well as the laboratory
results. A complete copy of the geotechnical results is included in Appendix E.
Analysis of the properties of the weathered and unweathered bedrock beneath the site
indicate they can be used to construct a low -permeability liner system which will meet both
Federal and State requirements for sanitary landfills. As discussed in Section 5.2.3, a test
pad will be constructed using potential liner material. Actual construction and material
specifications will be developed using the results of this test pad study.
The permeability of the eolian sand indicates that it would not be suitable for use in a
drainage system without some modification to the sand or the proposed design itself.
4.8 Site Hydrogeological Characteristics
A total of 44 soil borings were completed as piezometers to characterize the ground -water
regime beneath the site. Detailed individual completions along with corresponding
lithologies are shown Appendix C. Piezometer installations can be divided into three
general categories: 1) Piezometers completed to monitor only • the levels of ground water
present within the bedrock materials; 2) Piezometers completed to monitor only the levels of
ground water present in the eolian sands and weathered bedrock materials; and 3)
Piezometers completed to monitor ground water present in the bedrock and all overlying
weathered bedrock and eolian sands. Table 4.2 lists all the piezometers, the zones
monitored and other pertinent information. The water levels in the piezometers were
measured following completion and periodically thereafter to obtain dynamic and static •
water elevation information. The information is tabulated in Appendix F.
4.8.1 Ground -Water Occurrence and Distribution
4.8.1.1 Ground -Water Occurrence in the Eolian Sands
Ground water was not present in the eolian sands within the area of investigation. The most
likely location for ground water in the eolian sands would be at the permeability
discontinuity between the sand and the underlying weathered bedrock materials. All of the
piezometers in Table 4.2 listed as being sand completions or completed across the entire
bedrock, weathered bedrock, and sand intervals are completed in a fashion to detect ground
water at this potential permeability discontinuity. Although some boring logs, such as PZ-
23, described potential water -bearing intervals within the sands, all of these piezometers are
either dry or have static water levels below the base of the sands (see PZ-27). PZ-37A,
which is adjacent to PZ-23, was completed specifically to determine if the potential water
bearing zone observed in PZ-23 at 17.2 -feet would actually produce water. PZ-37A has
remained dry for over 2 weeks.
•
4-14
GEOTECIINICAL RESULTS OF ON -SITE MATERIALS
y
•
•
as
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1.9 x 10' cm/sec
4.2 x 10-' cm/sec
4.2 x 10-' cm/sec
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4.8.1.2 Ground -Water Occurrence in the Weathered Bedrock
With the possible exception of MW -03 described below, ground water does not appear to be
present within the weathered bedrock unit in the area of investigation. Within the weathered
bedrock, ground water could occur within distinct higher -permeability zones or at the
permeability discontinuity at the bedrock/weathered bedrock interface. All of the
piezometers appropriate for monitoring the eolian sand as described above are completed
across the entire weathered bedrock interval with the exception of PZ-10 which was
terminated within the eolian sand.
Monitor Well MW -03 is completed across the lower portion of the weathered -bedrock
interval. This interval was generally sandier in this boring than in others and the
weathered/unweathered contact is somewhate ambiguous. The lithology equivalent to the
static water level in MW -03 was described as containing iron stained fractures, indicating
movement of ground water. Because this well is on relatively high ground, the ground
water in MW -03 is less likely to exist under confined conditions than wells tapping ground
water at lower elevations. It is believed that the iron stained fracturing observed is yielding
ground water to the well under water table conditions.
Besides MW -03, the only piezometers or wells with a static water level above the top of the
competent bedrock unit are monitor well MW -02 and nearby PZ-13. The top of the interval
monitored in MW -02 (base of the bentonite seal) is approximately 4 -feet below the top of
the bedrock and the static water level is approximately 9 -feet above this level (See Appendix
D). This information indicates that the source of this ground water is within the bedrock
unit and exists under confined conditions.
4.8.1.3 Ground -Water Occurrence in the Bedrock Materials
With the possible exception of MW -03 described above, all ground water existing beneath
the site is in the competent bedrock materials. The majority of the ground water exists
under water table conditions although it is locally confined, particularly along the western
flank of the ridge (MW -02, PZ-12, and PZ-19 Deep). Plate 9 is a ground -water contour
map illustrating the generally northwestern flow direction of ground water beneath the site.
A more westerly component is evident in the southwest portion of the site. Figure 4.4 is a
conceptual model of the subsurface conditions in an east -west direction across the site. It
shows the relationship of the lithology and proposed excavation to the ground -water table
with potential migration pathways should a release occur.
RIDGE TOP
UNSATURATED -INTERVAL
rGTCI"TrN
LEGEND
MONITOR WELL
APPROX. 500 FEET
WEATHERED BEDROCK
POTENTIAL MORA TON PATI-PHAY5
•
PILL BOUNDARY
i
UNWEATHERED BEDROCK
EXCAVATION
INDUSTRIAL COMPLIANCE
1746 COLE BLVD.
BLDG. 21 SUITE 300
GOLDEN, COLORADO 60401
FIGURE 4,4
CONCEPTUAL SUBSURFACE MODEL
Qt+]T, WASTE SERVICES COMPANY
pRo,-cT SANITARY
L
.22::). CT }et 2-3716
GRFRATMRY, INDUSTRIAL COMPLIANCE
SAVED 23716F7, I
IDATP •riMP1 2/7/92
DIA,MN LY, W.H.T._1..► VED M.A.M.
I•
•
•
All of the borings listed in Table 4.2 as bedrock completions or as completions across all
three intervals are completed in a fashion to detect the presence of ground water in the
bedrock. Ground water is present in every piezometer completed into the bedrock: with the
exception of PZ-2, PZ-5, PZ-33, and PZ-34A. PZ-2, PZ-5 and PZ-34A penetrate only the
upper 2 feet of the bedrock. PZ-33 was drilled approximately 15 feet from PZ-11 to
determine if the ground water present in PZ-11 existed under confined conditions. PZ-33
penetrated 25 feet of bedrock and remains dry.
The saturated intervals within the bedrock materials contain both horizontal and vertical
zones of enhanced permeability (fractures, paleo-erosional surfaces, lignitic zones, and sandy
intervals) within the low permeability clays and claystones. There is vertical ground water
movement within these clays and claystones but they yield water very slowly relative to the
enhanced permeability zones. For examples, the majority of ground water in MW -01 comes
from a lignitic zone at 26 -feet below ground surface (bgs), a sandy interval at 39 -feet bgs.
and the wet sand at 41 -feet bgs. The ground water tapped in MW -02 appears to originate
predominantly from a fractured interval at approximately 43 -feet bgs. The ground water in
MW -03 appears to originate predominantly from the fractured silty clays at 40 -feet bgs, as
well as a wet ironstone observed at approximately 45 -feet bgs, and a wet sand lense at
approximately 50 -feet bgs.
Much of the ground water detected in the bedrock interval beneath the site exists in
fractures. Both horizontal and vertical fracturing were commonly observed in every boring
penetrating the bedrock with the exception of SB-4 (PZ-4), SB-8 (PZ-8), and PZ-12. In
addition, much of the observed fracturing occurred near the top of the bedrock/weathered
bedrock contact as seen in PZ-16 and SE -7 (PZ-7). Oxidation along the fracture faces was
common. In many cases, the fractures were filled with gypsum or calcite as seen in SB-21
at a depth of 23 feet and 40 feet, SB-23 at 43 feet, and SB-26 at 45 feet. Water occurrence
in fractureswas readily observed during drilling in many borings such as MW -03 at 45 feet,
PZ-07 at 53 feet, and PZ-11 at 45 feet.
In many piezometers, static ground water levels correspond to fracture intervals that were
described as only slightly moist during drilling. Evidence of water present in fractures
described as slightly moist can be seen in the comparison of PZ-16 and its nested well PZ-
36. Piezometer PZ-16 was drilled to a total depth of 61 feet. The only potentially water
bearing intervals observed in PZ-16 were a slightly moist iron stained fracture at a depth of
32 feet below ground surface (4856.97 -feet MSL) and a moist sandy clay at a depth of 44 -
feet below ground surface (4844.97 -feet MSL). Static water level in PZ-16 is 33 -feet below
ground surface (4855.97 -feet MSL), closely corresponding to the observed fracture. To
determine if the ground water present in PZ-16 originated from the fracture under water
table conditions, rather than from the moist sand under confining pressure, PZ-36 was
drilled approximately 7 feet away from PZ-16 to a depth of 42 -feet below ground surface
(4846.69 -feet MSL). PZ-36 contains water, verifying the presence of ground water in the
fracture.
Six borings (PZ-3, PZ-8, PZ-12, PZ-14, PZ-25, PZ-29) intersected water -bearing channel
sands. These borings are located randomly across the site. The thickness of the water
bearing channel sands that were penetrated ranged from 2 feet in PZ-14 to approximately 22
feet in PZ-8 and PZ-29. Ground water in the sands appears to be confined in PZ-12, and
PZ-14. PZ-19 and PZ-22 also intersected sillier sands representative of water bearing
4-20
•
•
•
channel margin environments.
Ground water was also present in zones of oxidation representing ancient erosional surfaces
(PZ-16 at 33 feet), sandy clays representing near channel and overbank deposits (PZ-17 at
37 feet and PZ-20 at 41 feet) and thin lignitic zones (PZ-25 at 56 feet and PZ-26 at 32 feet).
These lignitic zones are laterally discontinuous and are considered modifiers to the
predominant claystone lithology.
4.8.2 Summary of the Hydrogeologic System
An understanding of the hydrogeological system beneath the site is crucial in order to design
a landfill ground -water monitoring network that will provide timely detection should a
failure of the design components occur. Figure 4.4 above presents a conceptual model of
the subsurface conditions beneath the site.
Review of the data acquired during the field program yields the following significant
observations:
1) The site is mantled by highly -permeable, homogenous Quaternary eolian sands. No
permeability discontinuities such as stratified clays were observed within the sands.
2) The highly -permeable Quaternary sands rest on Cretaceous bedrock materials of
significantly lower permeability creating a permeability discontinuity at the
Quaternary/Cretaceous interface (eolian/sand interface).
3) Ground water is not present along the permeability discontinuity at the
Quaternary/Cretaceous interface.
4) The uppermost saturated zone occurs at approximately the same interval within the
unweathered bedrock across the site.
5) The degree of fracturing decreases approximately 70 to 80 feet into the bedrock.
6) With one exception, all borings placed into the bedrock materials intercepted ground
water.
7) The resulting ground -water contour map shows no significant anomalies and closely
mimics the topography.
8) There are no well-defined surface drainages in the study area. If there were any
defined surface drainages in the study area, they would be more likely to be
underlain by ground water flowing along the sand/bedrock interface, which would
likely be relatively shallow and could significantly effect the design or even the
suitability of the site.
Considering the above observations, the following conclusions can be drawn concerning the
hydrogeological system beneath the site:
4-21
•
1) Surface water infiltration is too slow to result in water ponding at the eolian sand -
bedrock interfa
2) Water continues to migrate horizontally and vertically downward through the
fractures in the weathered and unweathered bedrock until the fractures and
weathering effects have significantly decreased. Water begins to pond at that
interval.
3) Over geologic time water slowly migrates laterally to form a near continuous ground-
water system that can be effectively monitored as detailed in Section 7.0.
4.8.3 Fate of Ground Water
The generally northwest -to -western flow directions and northerly -dipping topography makes
it likely that the ground water eventually discharges either into the alluvial aquifers
associated with the South Platte River, or Box Elder Creek which eventually discharges into
the South Platte River north of the site.
4.8.4 Aquifer Characteristics
4.8.4.1 Permeability
Table 4.3 summarizes the permeability results of the packer and slug tests conducted at the
site. The methods used to conduct these tests are detailed in Sections 4.6.7 and 4.6.8. The
locations of these tests are shown on Plate 4. Actual data and calculations are included in
Appendix G.
Six packer tests were conducted to gather horizontal permeability data in the unsaturated
intervals in the eolian sand, the weathered bedrock materials, and in the competent bedrock.
Horizontal permeability data was gathered from the saturated intervals in each of the three
monitor wells by slug testing using the slug -out method.
4.8.4.2 Storage Coefficient
Storage coefficient calculations are not appropriate to apply to a strictly fracture -controlled
system due to its almost non-existent storage capacity.
4-22
TABLE 4.3
PACKER AND SLUG TEST PERMEABELITY RESULTS
Packer Tests
Boring Number Interval Tested (Zone)
PK-1
PK-2
PK-3
PK-4
PK-5
PK-6
38.5-51 feet (Bedrock)
38.5-50 feet (Bedrock)
18.5-30 feet (Weathered Bdrk)
10.5-21 feet (Sand)
13.5-21 feet (Weathered Bdrk)
14.5-26 feet (Sand)
Permeability
No Take
No Take
2 x 104 cm/sec
1.7 x 10' cm/sec
No Take
1.6 x cm/sec
No Take = Formation did not accept any water for duration of test, permeability is very low
but cannot be quantified
Slug Tests
Well Number Zone
MW -01
MW -02
MW -03
Bedrock
Bedrock
Weathered
Conditions Permeability
Water Table
Confined
Water Table
3.2 x 104 cm/sec
8.6 x 10' cm/sec
8.7 x 104 cm/sec
Permeability determined through rising head test by slug -out method
•
•
Typical storage coefficient values for materials felt to be representative of the sandy clays
and sands observed at the site were derived from the USGS Water -Supply Paper 1662-D,
Specific Yield- Compilation of Specific Yields for Various Materials. Storage coefficient
values are approximately equal to the Specific Yield in unconfined aquifers. Typical values
listed in the USGS paper of materials represented on site are:
1 to 4 -percent Clays, moderately silty with minor amounts of very fine grain
sands such as seen in the overbank and channel margin deposits
on site
5 to 15 -percent Sand, very fine grain, moderately silty and very slightly clayey.
This value is probably representative of the channel deposits
observed on site, although it may be slightly lower than the
actual value in the cleaner sands
4.8.5 Wells Within a 1 -Mile Radius of the Site
The Colorado Division of Water Resources was contacted for a list of permitted water wells
in the vicinity of the proposed site. Table 4.4 is a list of the wells within a 1 -mile radius of
the proposed site. No information was available where blanks exist in the table. As can be
seen, all wells listed are used for livestock. Figure 4.5 is a map depicting the location of
these wells relative to the site. All available well logs were obtained from the Office of the
State Engineer and are included in Appendix D.
4.8.6 Travel Time Calculations
The permitted well listed in Table 4.4 in Section 35 may be located in or near the east
boundary of the landfill footprint. Once located, this well may be abandoned if it
compromises the effectiveness of the environmental safeguards incorporated into the landfill
design.
The nearest well downgradient of the site is approximately .8 miles west of the proposed fill
boundary and located between -the site and Box Elder Creek. Travel time was calculated for
any liquids to breach the lining system and travel to the well. The following pathways and
assumptions were used in this calculation:
1) Landfill liquids would travel vertically through the three foot clay liner that has a
permeability of lx 10-' cm/sec.
4-24
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2) The liquid would continue to travel vertically downward 15 feet through unsaturated
bedrock materials and be intercepted by ground water traveling west. The actual
unsaturated thickness of bedrock material directly upgradient of the well is greater
than 15 feet, so 15 feet is a conservative value. Vertical permeability of the
unsaturated bedrock materials was estimated.
3) The landfill liquid would then migrate laterally through saturated bedrock materials at
a gradient (derived from Plate 9) until intercepting the well. A horizontal
permeability value through the saturated bedrock of 8.6x1O was used. This
permeability was derived from slug test data from MW -02 which is located near the
western fill boundary.
These three components are calculated separately as follows:
1) Vertical Migration Through 3 -foot Thick Clay Liner Unsaturated Flow Conditions
Assumptions:
T = Travel time through unsaturated materials
Zo = Flow Path Length in unsaturated materials
= Effective porosity (0.1 claystone, 0.2 silty sand)
qu = Volume of infiltrated liquid. Also equal to unsaturated vertical hydraulic
conductivity (estimated to be 1 x 104. cm/sec from test data)
Ks = Saturated vertical hydraulic conductivity (1 x 10' cm/sec)
n = Brooks -Corey parameter (n = 4)
•
Therefore:
T=
((a, I-1/B)(K. i�a)
T = (3 ft)(0.11t30.48 cm/ft)
(1x10 8**314)(1x10"**114)
T = 5.14 x 10'a sec = 16.3 yrs
2) Vertical Travel Time through 15 -foot Thick Native Clay
Unsaturated Flow Conditions
Assume: Zo = 15 feet
=0.15
qu = 1 x 10'' cm/s
Ks = 1 x 104 cm/s
n =
T
T=
T =
(qu 1.1/33)(K. 1lo)
(15 ft)(0,15)f30.48 cm/ft).
(1x10'**314)(1x104** 114)
3.86 x 10'$ sec = 12.23 yrs
4-27
•
3) Horizontal Travel Time Through Saturated Materials
For the following calculation, hydraulic gradient was determined from the ground-
•
water contour map (Plate 9). Porosity was estimated at 25 %, or 0.25, based on the
moderately consolidated sandstone typical of the water bearing unit observed at the
site.
Assuming Darcy's Law is valid for this flow system, and using an average
permeability value of 1.6 x 10-4 cm/sec. derived from slug test data of MW -1 and
MW -2.
Q=KiA or V=Ki10
where: V = velocity (cm/s)
i = gradient (unitless number)
K = Horizontal hydraulic conductivity (cm/s)
= estimated at .25
V =K i / 4) V = (1.6 x 10-4 cm/sec) (0.018) / 0.25
V = 1.2 x 10"5 cm/sec 4224 om the The nearesthe estimated ell is estimtravel time ed to be approximately
welly with flow feet
inr material ef dge the same hydraulic
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conductivity:
Velocity = Distance/Time
Time = Distance/ Velocity
T = 4224 ft
(6 x 10"5 cm/sec)(ft/30.48 cm)
T=1.1x1010 sec
T 340 years through saturated materials
Adding travel time:
16 years travel time through clay liner
12 years travel time through unsaturated materials
4Q years travel time through saturated materials to well
Total —370 years total travel time for liquids that might breach the lining system and
travel to the nearest well
4-28
•
4.8.7 Ground -Water Quality
This section discusses the representative ground -water quality of the site. Three ground-
water monitoring wells (MW -1, MW -2, and MW -3) were installed along the southwestern
portion of the site to provide permanent ground -water sampling points. The locations of
these monitoring wells are shown on Plate 15. These monitoring wells were sampled on
December 9, 1991. The field and laboratory results for these wells are discussed below.
At this time there is an insufficient amount of ground -water analytical data from the site to
specify an appropriate statistical analysis program for ground -water monitoring at the
landfill. After eight quarters of background ground -water monitoring are completed, the
data will be reviewed and an appropriate statistical analysis method will be specified. This
program will concur with State regulations regarding statistical analysis methods of ground-
water monitoring results for solid waste disposal facilities.
Field parameters, such as pH and specific conductance, and temperature were measured at
each monitoring well. The field parameter results are presented in Appendix H and
discussed below.
Ground -water pH ranged from 7.00 to 7.14 Ph units.
•
•
Specific conductance, which is an indicator of ionized species, ranged from 4,247.5
to 9,130 umhos/cm.
* Temperature ranged from 10.7° to 12.2' celsius.
The ground -water samples collected from monitoring wells MW -1, MW -2, and MW -3 were
analyzed at the laboratory for the organic and inorganic suite of parameters outlined in Table
7.1. The analytical results are presented in Appendix H and significant findings are
summarized below:
▪ No volatile organic compounds (VOCs) were identified above the laboratory detection
limits in any of the wells.
• Total Organic Halogen (TOX) ranged between 5 and 10.5 ug/1.
* Total Organic Carbon (TOC) ranged between 5 and 5.9 mg/1.
* Total dissolved solids ('IDS) was calculated on the basis of the specific conductance
measurements, as outlined in Driscoll, (1986). The specific conductance was
multiplied by a conservative factor of 0.65 to obtain a reasonable estimate of TDS.
The TDS measurements ranged from 2,763 to 5,935. The TDS measurements
exceeded the Secondary Drinking Water Standards (SDWS) of 500 mg/1 for all wells.
* Sulfate concentrations range from 2680 to 5160 mg/l. Sulfate concentrations exceed
the SDWS of 250 mg/1 for all wells.
* Nitrate concentrations range from 1 to 16 mg/1. Nitrate concentrations in MW -2 at
11 mg/1 and MW -3 at 16 mg/1 exceed the Primary Drinking Water Standards
4-29
•
•
(PDWS) of 10 mg/l.
• Chloride concentrations in MW -1 at 264 mg/1 and MW -2 at 450 mg/1, exceed the
SDWS of 250 mg/1.
• Alkalinity (bicarbonate) ranged from 293 to 521 mg/1, which is indicative of very
hard water.
• The water chemistry -type can be characterized as sodium -sulfate.
Waters can be classified for suitability for irrigation by their conductivity (salinity) and the
sodium absorption ratio (SAR), a parameter that is calculated based upon the concentrations
of sodium, magnesium, and calcium. The ground water exhibits a salinity classification of
C4 (very -high -salinity water) for MW -3. The U.S. Department of Agriculture (USDA)
classification states that C4 type water is not suitable for irrigation under ordinary
conditions. The salinity values for MW -1 and MW -2 fall beyond the limits of the USDA
classification diagram due to the high conductivity.
The ground water from MW -3 had a sodium classification of Si (low -sodium water), which
can be used with little danger on nearly all soil. The ground water from MW -1 and MW -2
had a sodium classification of S3 (high -sodium water), which may be harmful to most soils.
The sodium hazard is also increased if the water contains a high concentration of
bicarbonate ions. As the soil solution becomes more concentrated there is a tendency for
calcium and magnesium to precipitate as carbonates and for the relative proportion of
sodium to be increased as a consequence.
A final ground -water potential use is stock watering. McKee and Wolf (1963) report that
stock can tolerate TDS concentrations up to 10,000 mg/1, however, for the State of
Colorado, TDS as high as 2,500 mg/1 is considered acceptable for stock. They also state
that the upper limit for livestock lies between 1,000 mg/1 for sulfate and 2,000 mg/1 for
sodium. Based on this criteria, the ground water may not be suitable for livestock watering.
The ground -water results shows several constituents that exceed the PDWS and SDWS.
Therefore, the shallow water that occurs at the site is considered to be of poor quality and
generally unsuited for domestic use. In addition, the shallow ground water in the vicinity of
the site is generally unsuitable for irrigation purposes and may not be suitable for livestock
watering.
4.8.8 Ground -Water Monitoring Network
Details of the ground -water monitor system are outlined in Section 7.0 of this document.
The ground -water monitoring system consists of 20 ground water monitor wells installed
around the perimeter of the fill area and is designed to effectively monitor the downgradient
saturated materials and provide upgradient background -water quality data. In addition,
unsaturated interval detection wells will be installed to monitor intervals above the saturated
zone that could potential transmit landfill liquids should a failure of the liner system occur.
4-30
08/23/2000 09:43 3034665137
BOBYOST PAGE 02
•
•
•
• Final Closure Plans
Upon notification from the governing body that final closure plans are to be implemented,
the operator will implement the following closure plan.
1. Complete an inventory of materials and condition of materials on site.
2. Notify facility clients of the closure and discontinue receipt of any new feedstocks
and or bulling agents within 30 days or sooner as directed by governing body.
3. Develop a working plan and timetable based on the types and volumes of materials
to be processed or removed. This plan will provide a realistic time table for
processing and or removing materials based on the type and volumes to be
handled. Where possible the materials or products will be used as soil amendments
or similar applications on the site itself, or on adjacent properties.
4. Remove all non -soil amendment materials (trash, storage containers, etc.), to other
locations and or dispose of in certified disposal facilities.
5. Workpad areas will be remediated unless approved for subsequent use by
governing body.
6. Storm water control features, if they exist, will be removed unless approved for
continued use by governing body.
7. Structures will be removed unless approved for continued use by the governing
body.
8. Revegetation of the site will be completed as approved by the governing body.
9. The operator will submit the detailed plan and time table to the governing body for
review and comment within 30 days.
10. The operator will implement the final plan within 15 working days of notification
by governing body.
Rattler Ridge D&O Information
Page 15 of 15
08/23/2000 09:43 3034665137
BOBYOST PAGE 01
0
•
•
Al IkS
Roger and Julie
Phone: X6.384232
FAX M3.884-9259
email: bayoet@allinitycorP.com
Facsimile
To: Roger Doak and Julie Cotter
@Fax: 303.759.5355
From: Bob Yost
Date: Wednesday, August 23, 2000 ® 9:38AM
Re: Final Closure Plan
Pages: 2, including this
Following is a revised final closure plan for the Ratter Ridge facility_
Please review and insert in our submittal. If further changes are required, please advise as
soon as possible.
FROM : Al ORGANICS LOST ANTLERS PHONE NO. : 3033849259
Jul. 27 2000 09:13AM P1
•
Fax II:
Phone #:
From:
Subject:
FAX TRANSMISSION
A -I Organics
Lost Antlers Facility
Golden, CO 80403
303-384-9232
FAX: 303-384-9259
1)64
03- 75-5- 5isc-
2c2L Yo s r
Comments:
Pr
eeed 4v-il
fie
Date:
Pages:
4(14-
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(Iiicluaing Cover)
IRIPMelletWilueuppeumilrpoi
Corporate Office
Eaton Facility
16350 WCR 76
Eaton, CO 80615
970-454-3492
800-776-1644
Fax: 970-454-3232
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C:M1 FI1.1iIMPIXHW0RMS\Faxtrantrnieeiem Fnrrn.Jru
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HAZARDOUS MATERIALS
SW_2.1._872
DI IIII ID Ifihil 01 DIII fflI IIDI 1
BOXY
NA' -16-2001 WED 11:13 AN ENVIRON HEALTH SERVICES 9703046411 P, 01
ofrq
• Iliac
COLORADO
5u/tAzik-p-- 9- /
FAX TRANSMISSION
WELD COUNTY DEPARTMENT OF PUBLIC HEALTH
ANO ENVIRONMENT
1555 NORTH 17'" AVE., GREELEY, CO 8064 I
ApMINISTRAT1oN
FAx: 070-304-6416
PHONE: 970-304-64 I O
HEALTH EDUCATION & NURSING
FAX: 970-304-64 16
PHONE: 970-304-6420
ENVIRONMENTAL HEALTH
FAX: 970-304-641 I
PHONE: 970.304.64 15
To: Roger Doak
Solid Waste Unit
CDPHE
Fax: 303-759-5355
Phone: 303-692-3438
From: Cindi Etcheveny
Subject: Rattler Ridge Compost
COMMENTS:
Date: May 16, 2001
Pages: 14 (Including cover)
D405e. A/4 />le. li-e G i /j/ y06/ 1,0 jJ wer &PA,
Email: cetcheve@co.weld.co. us
Phone: 970-304-6415, extension 2220
Thank You,
Cindi Etcheveny
Environmental Health Specialist
CONFIDENTIAL
This facsimile is intended only for the use of the individual or entity to which it is addressed and may
contain information that is privileged. confidential, and exempt from disclosure under applicable
laws If the reader of this facsimile is not the intended recipient nor the employee or agent responsible
for delivering the facsimile to the intended recipient, you are hereby notified that any dissemination,
distribution, or copying of this communication is strictly prohibited. If you have received this
communication in error, please notify us immediately by telephone and return the original message
to us at the above address via the U.S. Postal Service. Thank you.
0
1
WLD Rattler Ridge Organic Recycling Faci 7/5/2001
Solid Waste - Permit Process Information(Should be CD Sites) -
Application Design & Operations Plan (D&O) - Rattler Ridge Compost
- Special Use Permit
SW/2.1./872
II
SW/2.1./243
I
I
II
ll
II
I
UI
I
II
i
II
MAit-16-2001 WED 11 : 13 All
ENVIRON HEALTH SERVICES
A,tr.
w ' `'m1 Cour,•ty Planning dept:'
s
COLORADO
March 16, 2001
Bob Yost
A-1 Organics
16350 WCR 76
Eaton, CO 80615
Dear Mr. Yost:
1 9 2001
RECEIVED
Approximately two weeks ago, I submitted to you
Improvements Agreement for the Keenesburg operation
received the signed Agreement. You are required to ent
the Weld County as part of the Development Standards. prior
9703046411
I
P. 02
/i4f11'r i4a�
PUBLIC WORKS DEPARTMENT
1111 H STREET
P.O. BOX 758
GREELEY, COLORADO 80632
WEBSITE: www.co.weld.co.us
PI -ONE (970) 356-4000, EXT. 3750
FAX: (970) 304-6497
ng-
ennitUSR-1285
into an Impro
oad Maintenance and
As of yet, we have not
ments Agreement with
cording the plat. -
Please execute the enclosed document or set up an appointment to discuss any issues that you may
have.
Once this document is signed, I will forward the Agreement to be approved by the Board of County
Commissioners.
Sincerely,
Donald Carroll
Engineering Administrator
Enclosure
pc: Drew Scheltinga, Engineering Division Manager
4ulie Chester, Lead Planar
Chuck W.ilson,.President; A-1 Organics
rnAwallesWcm-c\a- I .let
. MAY -16-2001 WED 11 14 AM ENVIRON HEALTH SERVICES 9703046411
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P. 03
February 8, 2001
Julie Chester
Weld County Department of Planning
1555 North 17th Ave.
Greeley, CO 80631
RE: Special Use Permit #1285 -- Al Organics Rattle Ridge Composting Facility
Dear Julie:
Enclosed please find our answers to the resolution on the referenced facility and other
requested documentation. Please review this information and forward it to the
appropriate departments. If you need me to prepare additionalcopies and forward them
please let me know.
It is my understanding that you will notify me if there are any changes and or additions
that will need to be made. Once that step is completed I will have the final mylars
prepared. I am not quite'sure exactly what information you want included on the mylars,
so please let me know that as well.
Thank you for your assistance in getting our final documents in order; I look. forward to
hearing from you soon.
Bob Yost
Director, Marketing &
New Business Development
Cc: Chuck Wilson, Tom Wilson, Frank Haywood, pHE
Environmental Solutions Economic Sense
Eaton Facility 16350 WCR 76 - Eaton, Colorado 80615 • lel 970-454-3492 • 800-776-1644 • Fax: 970.44-3232
Lost Antlers Facility 6569 Hwy. 93 • Golden, Colorado 80443 • Ik1303-3114-9232 - Fax: 303-384-9259,-- - . ----
M7-16-2001 WED 11:14 AN ENVIRON HEALTH SERVICES
•
9703046411
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Al Organics
Answers to Resolution Special Review Permit # 1285
Part of Section 36, T3N, R64W of 6th P.M.
Weld County, CO
January, 2001
Al Organics answers the Conditions set forth in the Resolution of Special Review Permit
# 1285 by the. Weld County Commissioners. 'The answers will be attached to the Plat
prior to recording.
1. The attached development standards for the Use by Special Review
Permit shall be adopted...
Al Understands the Development Standards and agrees.
2. Prior to recording the plat:
A. The applicant, in cooperation with the multiple users of the haul route
shall enter into an Improvements Agreement with the Weld County...
Al Organics is currently in negotiations with the Weld County Department of Public •
Works regarding this issue.
B. The applicant shall enter into an agreement with Patina Oil to address
its concerns stated in a letter dated September 19, 2000...
Al and Patina Oil have come to terms and the letter stating so is attached.
C. The applicant should notify the Department of the Army, Corps of
Engineers, for. proper Department of the Army permits or changes in
permit requirements pursuant to Section 404 of the Clean Water Act...
The geological and hydrogeological studies performed for a Groundwater Monitoring
Plan by Coors's consultants in September of 1998, parts of which are attached to the
original permit application, indicates that no work associated with this project requires
the placement of dredge or fill material and there will be no excavation associated with a
dredged or fill project, either temporary or permanent, in waters of the United States
which may include ephemeral, intermittent and perennial streams, lakes, ponds, or
wetlands taking place at this site to advise the Corp of.
D. A Dust Abatement Plan shall be submitted to the Weld County
Department of Public Health and Environment (WCDPHE) for review
and approval...,
The Dust Management and Abatement Plan is as follows:
1. The facility will be operated in a manner to control dust.at all times.
1
MAY -16-2001 WED 11:14 AM ENVIRON HEALTH SERVICES
•
9703046411
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2. Al has been conducting a compost pilot study at the Rattler Ridge site. The pilot
program has been operating successfully with no occurrences of blowing ground
during the project.
3. In the rare event dust should become a problem Al personnel will immediately
perform one of or all of the following procedures:
a. Apply water to the affected area in volumes that stop the dust.
b. Apply heavy bulking agents to windrows that may be blowing.
c. Reduce arty operations that may exacerbate dust during high wind periods.
d. Stop blow areas by addition and compaction of compactable materials.
E. A Fly Abatement Plan shall be submitted to the WCDPHE for review
and approval...
Properly operated compost sites very seldom have fly problems. Usually any materials
that may be associated with flies at feedlots or waste treatment operations are not left
laying about to allow for fly breeding. At a compost site the materials are immediately
mixed and the composting process initiated. The resulting mix is usually too hot for
flies or has been processed to the point where they are deprived of available food. These
are but a few of the reasons composting is the method of choice for waste treatment.
The Fly Management and Abatement Plan is as follows:
1. Windrows will be maintained at proper composting temperatures. Temperatures of
45 to 60 degrees C are not acceptable breeding temperatures for flies.
2. Wet, high nitrogen feedstocks will be immediately mixed with bulking agents and
• placed into compost windrows.
3. Mixing pads will be scraped and cleaned to the best degree possible and a thin layer
of bulking agent added to the mixing floor, if needed, to "soak" up any remaining
liquids or wet materials.
4. Any spills of wet materials outside of the mixing area will be immediately cleaned
up.
5. If flies should become a problem Al personnel will perform one or all of the
following procedures:
a. Determine if the fly problem is due to onsite materials or processes (anaerobic
material, wet area, or rotten bulking agent). If so, corrective action will
immediately be taken to "fix" the problem (aerate, mix, or add a bulking agent
cover).
b. If the problem seems to be seasonable and associated with the mixing pad or
bulking agent storage area, Al will initiate an Integrated Pest Control project
using fly parasites (Nasonia vitripennis, Muscidifurax zaraptor) purchased from The
Source, Redding, CA or equivalent. The fly parasites would be released at the
dosage recommended by the grower.
c. A final and last resort step would be to spray the site with an approved
agricultural fly controlsubstance purchased at the local Coop. However, Al
would not envision this step being taken, as flies have never been a problem at
any of it other sites.
2
HAYi-16-2001 WED 11:15 AN ENVIRON HEALTH SERVICES 9703046411 P. 06
F. An odor Abatement Plan shall be submitted to the WCDPHE for review
and approval...
Odor seldom is a problem at a properly operated compost site. As with dust and flies
the composting process reduces odors by its very nature.
The Odor Management and Abatement plan is as follows:
1. Corrective actions listed below in item 7 will be immediately implemented if odor is
found to exceed a 15:1 threshold at Al's borders.
2. All wet and odorous feedstocks will be mixed with proper amounts of dry bulking
agents immediately upon arrival at the compost site.
3. Proper composting temperatures will be monitored and maintained at permissible
levels to insure the composting process stays aerobic.
4. -The mixing pads will be cleaned and a thin layer of bulking agent added to "soak
up" any leftover liquids or wet materials. .
5. Any spills outside the mixing pads will be immediately cleaned up.
6. The site manager will immediately investigate any bad odors and perform one or all
of the following procedures:
a. Aerate any windrow that may have gone anaerobic_ and correct the row's mix by
blending feedstocks.
b. Add a bulking agent cover of straw or sawdust to an overly ripe windrow.
c. Change the feedstock mix ratio for mix -specific persistent and recurring onsite
odor problems.
G. A Soil Sampling Plan shall be submitted to the WCDPHE and the
Colorado Department of Public Health and Environment (CDPHE) for
review and approval...
The purpose of this Soil Sampling Plan is to ensure that soil samples that are collected
are representative of the soil at the compost site and are not contaminated by improper
sampling and mixing procedures.
The Soil Sampling Plan is as follows:
Soil samples will be taken annually at the active areas of the compost site. The samples
will be used to show any effects of composting on soil quality, An initial set of samples
will be taken in the spring of 2001 to be used as a background reference.
Soil Sampling Specifications
Samples will be taken at one 4 foot boring per 10 acres and the tubes cut to the following
horizons (0 to 12,12 to 24, and 24 to 48 inches). Each horizon will be bundled and later
composited by the lab prior to analysis. Composites will be at a rate of no more than 6
borings per 60 acres (three composite samples one for each depth for each 60 acres).
Each sampling point (boring) will be logged using a handheld GPS and a sampling map
generated from the collected data.
3
MAY -16-2001 WED 11:15 At! ENVIRON HEALTH SERVICES
9703046411
P. 07
Soil Sampling Procedures
Equipment:
The following equipment will be used for soil sampling: JMC-ESP 0- to 48 -inch slide
hammer soil sampler complete with enough 48 -inch plastic sleeves and caps to complete
the sampling required; 48 -quart cooler with blue ice; plastic tubing cutters; gray duct
tape; and a handheld GPS unit.
Procedure:
1. The top portion of a Soil Boring Log will be filled out immediately prior to sampling.
2. Note the weather conditions and ambient temperature on the boring log.
3. Take and store a GPS reading.
4. Insert a 48 -inch sleeve into the soil sampler, place the sampler on the ground, attach
the slide -hammer, and commence pounding The sample barrel into the soil.
5. Stop pounding when the 48 -inch mark on the hammer meets the barrel orifice.
b. Extract the sleeve and mark the soil level. Using the tubing cutter, cut in.a circular
motion and remove the excess sleeve. Place a red cap on the top end of the sleeve
and a black cap on the bottom. Record soil color, type, and compaction space.
7. Place the sleeve with the sample into the cooler until the horizons can be measured
and cut.
8. Using the long tube brush, clean the barrel and prepare for the next sample site.
9. After all of the points of each site have been sampled, cut the sleeves into the
following lengths: 0-12, 12-24, and 24 to 48 inches. Cap both sides of the cut tubes.
10. Tape each set of horizon tubes. Label each taped set as follows: For each horizon,
name the sample by area, depth, and point (i.e., for Area 1, the 0- to 12 -inch horizon
would be Area 1-01-01; horizon 12 to 24 would be Area 1-01-02; and so on for the
other horizon).
11. Complete the Chain of Custody (CoC) and request analyses as described below.
Chain of. Custody Procedure:
1. With the waterproof marker, write on the tape (after combining the cut tubes)
Organization, Sample ID number, Sample Type: Soil, Initials of the Sampler, Date,
and Time.
2. Fill out one CoC per sample type, (i.e., soil).
3. The CoC is a legal document describing where, when, and how a sample was taken,
who took responsibility for collecting the sample as stated on the CoC form, and
whose custody the sample was in at all times.
4. The CoC should contain all the information that is on the sample bundle exactly as it
is written on the sample bundle (see above): Organization, Sample ID #, sample
type, initials of the sampler, date, and time. Also, add number of samples per
bundle, sample horizon (0-12 inches, 12-24 inches, and 24-48 inches), and whether
the sample is preserved or not (cooled).
4
KAY -16-2001 WED 11 15 AM ENVIRON HEALTH SERVICES
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9703046411
P. 08
5. The soil samples will be analyzed for the following analytes: Ammonia Nitrogen
(NH3-N), Nitrate Nitrogen (NO3-N), Phosphorus as (P205), Potassium as (K20),
Calcium (Ca), Magnesium (Mg), Sulfate (SO4-S), Sodium (Na.), Chloride (C1), ECe
(ds/M), Copper (Cu), Zinc (Zn), Iron (Fe), Manganese (Mn), Boron (B), SAR, CEC
(meq/ 100g), ESP (%), pHs, Organic Matter (OM), and Organic Carbon (OC).
6. Finally, sign and date the CoC, remove the pink sheet, place the original in a plastic
bag into the cooler with blue ice and the samples and retain the copy for your
records. Send the samples UPS Red to: Soil Control Lab, 42 Hangar Way,
Watsonville, CA 95076.
Soil Data Evaluation, Interpretation, and Reporting
The composting facility is underlain by blow sand and alluvial sand (20 to 30 feet thick),
Laramie Formation (soft shale and clay -shale) (7 to 120 feet thick), Fox Hills Sandstone
(60 to 300 feet thick), and finally Pierre Shale (3,000 to 8,000 feet thick) (Doty 1998). Doty
has also mentioned that the depth to groundwater in the compost site area is deep,
scarce, and what water is present is of poor quality. Calculations within his text
showed, using average yearly rainfalls, that it would take 370 years for water from the
surface to reach groundwater.
Al feels, given the compost site's geology, that it cannot adversely affect groundwater.
The soil data will be used to check the changes in soil chemistry over time. The data will
be stored in a database and pH, Electrical Conductivity, Chloride, Sodium, Sulfate, and
Nitrate will be charted by depth vs. the background data biannually and these charts
included in the yearly reports to the WCDPHE.
Sampling References
ASTM, ASTM Standards on Environmental Sampling, 1995.
ASTM, ASTM Standards on Ground Water and Vadose Zone Sampling, 2nd Edition,
1994.
Barker, North Carolina Cooperative Extension Service, Water Quality & Waste
Management, Livestock Waste Sampling, Analysis, and Calculation of Land Application
Rates, EBAE 111-84, 1996.
Brady, The Nature and Properties of Soils; 1990.
Carter, Soil Sampling and Methods of Analysis, Canadian Society of Soil Science, 1993.
Hatfield and Stewart, Animal Waste Utilization: Effective Use of Manure as a Soil
Resource, 1997.
Keith, Principles of Environmental Sampling, 1988.
Midwest Livestock Waste Facilities Handbook, 2nd Edition, 1993.
Myers, Geostatistical Error Management Quantifying Uncertainty for Environmental
Sampling and Mapping, 1997.
North Dakota Agricultural Experiment Station, Recommended Chemical Soil Test
Procedures: for the North Central Region, North Dakota State University, October 1988.
Soil and Plant Analysis Council, Inc., Handbook on Reference Methods for Soil Analysis,
1992.
Various NebGuides, University of Nebraska -Lincoln.
5
MAY -16-2001 WED 11 16 AM ENVIRON HEALTH SERVICES
411
9703046411
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P. 09
H. A typical mixing pad design shall be submitted to WCDPHE and
CDPHE for review and approvaI...
Al has submitted plans for a typical mixing pad. 'The plans are now attached to this
document.
I..• . The facility shall provide evidence to the WCDPHE and WCDPS that an
appropriate financial assurance mechanism has been secured...
Al has secured a $50,000 bond and will update the bonds status as necessary.
I.
The facility shall submit a groundwater monitoring plan, for review and
approval, to WCDPHE...The plan can incorporate the existing onsite
monitoring well (DH 122) or a new...
The purpose of this Groundwater Sampling Plan is to ensure that groundwater samples
that are collected are representative of the water that underlies the compost site and are
not contaminated by improper sampling procedures.
The Groundwater Sampling Plan is as follows:
Monitoring Well Specifications
Al will sample well DH -122 or others that may be applicable to the site semi-annually.
pH, EC, DO, and Temperature will be analyzed in the field. Samples will be analyzed
by the lab for a basic water balance consisting of Total Ca, Mg, K, and Na, plus 5O4,
NO3, Cl, Total Alkalinity, pH, EC, TDS, and Hardness.
Equipment:
6-500 ml plastic bottles, small vials of HNO3 and H2SO4, 2-1 liter bailers fitted with
plastic rope, temperature compensated meters for pH, DO, and EC, 1-2 gallon graduated
bucket, paper towels, well logs, permanent marker, disposable gloves, and cooler with
blue ice.
Chain -of -Custody (CoC) Procedures:
1. With the waterproof marker, write on the face of the bottle (before sampling) the
company name (Al Organics), unique well sample ID number, and sample type:
groundwater, initials of the sampler, date, and time.
2. The CoC is a legal document describing where, when, and how a sample was
collected, who took responsibility for collecting the sample as stated on the CoC
form, and in whose custody the sample was at all times.
6
MAY -16-2001 WED 11 16 AM ENVIRON HEALTH SERVICES
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9703046411
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P. 10
3. The CoC (see attached documents) should contain all of the information that is on
the sample container exactly as it is written on the sample container (see above):
company name, well sample ID number, sample type, initials of the sampler, date,
and time. Also, add bottle size, number of bottles per sample, and indicate whether
the sample is preserved or not (acid, cooled, frozen, etc.).
• 4. Analyze well water samples for Nitrate Nitrogen (N03 -N) using the 500 -milliliter
bottle containing sulfuric acid, and use the 500 -milliliter bottle that contains nitric
acid (the bottle with the red dot) for the metals analysis: Ca, Mg, K, and Na. The
nonpreserved 500 -milliliter plastic bottle is used for pH, EC, TDS, Cl, SO4, hardness,
alkalinity, and ion balance.
5. Finally, sign and date the CoC, keep the pink copy, and put the yellow and white
copies into the cooler in a plastic bag.
6. Cool well water samples, do not freeze. Within 24 hours send samples by UPS to:
Accu-Labs Research, Inc., 4663 Table Mountain Drive, Golden, CO 80403-1650,
Phone 303-277-9514.
Sampling Procedure:
1. Fill out the top portion of an Al Organics Well Sampling Log upon arrival at each
well. (See attachment labeled Well Sampling Log.)
2. Note any irregularities at the well site regarding the well and the surrounding area.
3. Unlockthe casing cap, and align the water depth meter with the surveyed mark on
the north side of the well casing.
4. Slowly lower the water level sensor into the well until the buzzer sounds; record the
depth to water from the meter tape at the casing mark to the nearest 0.01 foot.
5. Calculate the well volumes to be bailed by the following equation (Well depth [ft] —
Depth -to -Water [fti) x 0.16 (gal./ft) x 3 well volumes ra gallons to be bailed.
6. Using each well's dedicated bailer, begin the bailing process.
7. Empty the contents of each bail into a 2 gallon graduated bucket.
8. Measure the pH, EC, Temperature, and DO after the first 1 gallon of water has been
discharged into the bucket. Record the data onto the Well Sampling Log as the
initial sampling parameters.
9. Continue to bail and record buckets of bailed water until the volume of water from
item # 5 has been bailed from the well.
10. Measure the pH, EC, Temperature, and DO after the three well volumes of water
have been discharged into the bucket. Record the data onto the Well Sampling Log
as the final sampling parameters.
11. While wearing plastic gloves from the bailer, fill each sample container to 1/8 -inch
below the bottle's brim, add preservative if necessary, cap, and place the labeled
container into a cooler containing frozen blue ice.
12. Secure the cap to the well casing, and lock it.
13. Send the cooler to the lab after following the above CoC procedures.
Data Interpretation
The Doty report clearly indicates that the there are "strong trends toward increasing
concentrations (particularly TDS, sulfate, chloride, calcium, and magnesium)" for DH -
7
• MAY -16-2001 WED 11:17 AM ENVIRON HEALTH SERVICES
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9703046411
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122... He goes on to say that the processes for increasing concentrations in DH -122 are
not fully understood, and that the processes are not from the mine and that they appear
to be either naturally occurring processes or are resulting from impacts of off -site
activities of others.
Al feels that its own sampling plan, which includes nitrate and total metals analysis in
addition to the ongoing Coors' sampling plan will be more than adequate to safeguard
the area's groundwater. The previously mentioned upward trends will have to be
scrutinized. Several year's worth of Al's data must first be incorporated into the
groundwater statistics coupled with soil data to determine if Al could ever affect the
groundwater quality.
Well Sampling References
American Chemical.Society, Principles of Environmental Sampling, 3rd. Ed., 1992.
American Public Health Association, Standard Methods for Examination of Water mad
Waste Water, AW-WA, WEF, 18th. Ed., (1992).
American Society for Testing and Materials, ASTM Standards on Ground Water and
Vadose Zone Investigations, 2nd. Ed., (PCN): 03418094-38, ASTM, (1994).
Barcelona, M.J., J.P. Gibb, J.A. Helfrich, and E.E. Gsrske, Practical Guide for
Groundwater Sampling, EPA/600/2-85/104, U.S. EPA, (1985).
Barcelona, M.J., J.P. Gibb, and RA. Miller, A Guide to the Selection of Materials for
Monitoring Well Construction and Ground Water Sampling, EPA -600/2-84-024, PB84-
141779, U.S. EPA, (1984).
Blegen, R.P., J.W. Hess, and J.E. Derute, "Field comparison of ground water sampling
devices," HWWA Second Annual Outdoor Action Conference, Las Vegas, Nevada, p.1-
23, (1988).
Kearl, P.M, N.E. Korte, and T.A. Cronlc, "Suggested modifications to groundwater
sampling procedures based on observations from the colloidalborescope," Ground.
Water Monitoring Review, Spring, p. 155-161 (1992).
Parker, L.V., "The effects of ground water sampling on water quality. A literature
review," Ground Water Monitoring Review, Spring, p.130-141, (1994).
Puls, R.W., D.A. Clark, B. Bledsoe, R.W. Powell, and C.J. Paul, "Metals in ground water:
Sampling artifacts and reproducibility," Hazardous Waste and Hazardous Materials,
9(2): 149-162 (1992).
Robin, M.J.L and R.W. Gillham, "Field evaluation of well purging procedures," Ground
Water Monitoring Review, Fall, p.85-93, (1987).
U.S. EPA, Data Quality Objectives for Remedial Activities: Development Process, EPA
540/G-87/003, (1987).
U.S. EPA, Definitions for the Minimum Set of Data Elements for Ground Water Quality,
EPA 813/B-92-002, H550G, (1992).
U.S. EPA, EPA RCRA Ground Water Monitoring: Draft Technical Guidance, EPA/530-
R-93-001, U.S. EPA, (1992).
U.S. EPA, RCRA Ground Water Monitoring Technical Enforcement Guidance
Document, OWSER-9950.1, PB87-107751, (1986).
U.S. EPA,"Ground Water and Contamination," Handbook: Ground Water, EPA/625/6-
90/016a, Vol. 1, PB93-129732, U.S. EPA, (1990).
8
• MAY -16-2001 WED 11 17 AM ENVIRON HEALTH SERVICES
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9703046411
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P. 12
K. The applicant shall attempt to address the requirements of the Southeast
Weld Soil Conservation Distri;t, as stated in the referral response
received August 23, 2000...
AI understands and shares the Conservation District's concerns regarding the delicate
nature of the vegetation and soil and the danger of blowing sands if the balance is upset.
Al intends to be a good steward of the land. Al plans to use only the amount of land
necessary for on -hand material composting. Al will sow annual rye into areas that have
been used but are not covered with compost or have vegetation. Finally, Al appreciates
any recommendations the Conservation District has that would aid in reducing the risk
of blowing sands. As mentioned above in the Dust Abatement Plan, Al has been
successfully operating it's composting pilot with no occurrences of blowing soil during
the project.
3. Prior to the issuance of building permits: (A through K)
Al understands the requirements A through K and will act accordingly when building
begins.
9
' MAY4-16-2001 WED 11 17 AM ENVIR0N HEALTH SERVICES
0
0
9703046411
P. 13
:
IiAV-16-2001 WED 11 17 Ali ENVIRON HEALTH SERVICES 9703046411
02/02/1995 20:18 97e454311, Al ORGANICS
May 15, 2001
Cindy Etcheverry
• Weld County Department of Public Health & Environment
1555 N. 17th Avenue
Greeley, CO 80631
Re: Rattler Ridge Submittal Clarification
Dear Ms Etcheverry,
P. 14
PAGE 02
d ffler kely
Per your request, following arc the written clarifications regarding the last submittal I sent:
Date of Annual Soil Sampling:
• We will conduct our annual soil sampling in Lune of each year.
- initial Background Soil Sampling Date:
• We will conduct the initial background soil sampling on May 21, 2001.
Monitoring Well Semiannual Testing Dates:
• We will conduct our semiannual monitoring well tests during the months of April and
October each year.
If! understood correctly, these clarifications should complete the information needed to allow us
to prepare and file our mylars, thus completing our permit. Please let me know if there are any
other issues we need to address.
Sincerely
Bob Yost
Director, Marketing &
New Business Development
Cc: Julie Chests, Weld County Planning
Environmental Solutions s Economic Sense
Caton Facility 16330 WCR 76 • Eaten, Colorado 90613'6 Id 970.434.3492. 800-776-1M4 • Fox: 970+54-3232
Lett Antlers Facility 6569 Hwy. 93 + Golden, Colorado 80403 - Tel 303-384-9232 • put: 303.384-9239
Attachment C
Information Reviewed from the
Weld County Department of Public Health and Environment
STEWART ENVIRONMENTAL CONSULTING GROUP, LLC
RESOLUTION
RE: APPROVE CERTIFICATE OF DESIGNATION FOR A SOLID WASTE DISPOSAL SITE
AND COMPOSTING FACILITY IN THE A (AGRICULTURAL) ZONE DISTRICT -
LAMBLAND, INC., DBA A-1 ORGANICS
WHEREAS, the Board of County Commissioners of Weld County, Colorado, pursuant to
Colorado statute and the Weld County Home Rule Charter, is vested with the authority of
administering the affairs of Weld County, Colorado, and
WHEREAS, on the 4th day of December 2000, a public hearing was held in the
Chambers of the Board of County Commissioners of Weld County, Colorado, for the purpose of
considering whether to grant a Certificate of Designation to Lambland, Inc., dba A-1 Organics,
16350 Weld County Road 76, Eaton, Colorado 80615, said site to be located on the following
described property:
Part of Section 36, Township 3 North, Range 64 West of the 6th
P.M., Weld County, Colorado
WHEREAS, said applicant was represented by Robert Yost, and
WHEREAS, said request for a Certificate of Designation was submitted in conjunction
with an application for a Site Specific Development Plan and Special Review Permit for a Solid
Waste Disposal Site and Composting Facility in the A (Agricultural) Zone District which was
approved by the Board on November 1, 2000, and
WHEREAS, Section 32-20-104, C.R.S., requires the Board to take into account certain
factors to approve a Certificate of Designation and, having taken into account said factors, finds
as follows:
1. Section 45.4.1 -- Certificates of Designation for solid or hazardous waste
disposal sites and facilities as required by Colorado Revised Statutes and the
Code of Colorado Regulations shall not be deemed approved until or unless a
Use by Special Review Permit has been approved by the Planning Commission
or Board of County Commissioners where required by the Weld County Zoning
Ordinance. The Board shall be guided in its review of a Certificate of
Designation by state statute and regulations contained in Colorado Revised
Statutes and the Code of Colorado Regulations. The State is recommending
conditional approval of the Certificate of Designation for this facility. It will be
necessary for the applicants to obtain approval of both the Use by Special
Review Permit and Certificate of Designation in order to legalize the composting
facility.
2. Section 45.4.2 -- Applicants for activities reviewed pursuant to Section 24 for any
Solid Waste sites and facilities shall have the burden of proof to demonstrate
that there is a need for the facility within the proposed area of service, and the
Planning Commission and Board shall be satisfied that a need exists as part of
the determinations for any such permit. The application materials state, "the
fa: AL PGA 79L ( �) /4,10) iee)D
2000-2602
PL1443
CERTIFICATE OF DESIGNATION - LAMBLAND, INC., DBA A-1 ORGANICS
PAGE 2
Weld County Comprehensive Plan states that Weld County is a `complete farm
and food system'. This organic recycling facility is an instrumental part of the
complete system by producing a product ready for purchase. The products
produced are beneficial for food production." Also, "The composting facility may
purchase materials from agriculture. But for the most part, it will offer an
alternative that may reduce the costs of agriculture waste management."
NOW, THEREFORE, BE IT RESOLVED by the Board of County Commissioners of
Weld County, Colorado, that a Certificate of Designation for a Solid Waste Disposal Site and
Composting Facility in the A (Agricultural) Zone District, for Lambland, Inc., dba A-1 Organics,
on the hereinabove described real property be, and hereby is, granted subject to the conditions
of Use by Special Review Permit #1285.
The above and foregoing Resolution was, on motion duly made and seconded, adopted
by the following vote on the 4th day of December, A.D., 2000.
ATTEST'
k to the Board
the Board
RM:
Oun A ' . rney
BOARD OF COUNTY COMMISSIONERS
WELD COUNTY, COL)DO
/3-�}J44}&J
Barbara J. meyer, Chair
M. J G - i e, ro-Tem
/-
;orge '. Baxter
Da a ' all
Glenn Vaad
2000-2602
PL1443
WELD COUNTY, COLORADO
CERTIFICATE OF DESIGNATION
In accordance with the provision of Sections 30-20-101 through 30-20-115, C.R.S., the Board
of County Commissioners of Weld County, Colorado, hereby grants a Certificate of Designation
for a Solid Waste Disposal Site and Composting Facility in the A (Agricultural) Zone District.
Location of Site: Part of Section 36, Township 3 North, Range 64
West of the 6th P.M., Weld County, Colorado
Name and Address of Responsible Operator:
Lambland, Inc., dba A-1 Organics
16350 Weld County Road 76
Eaton, Colorado 80615
This Certificate of Designation may be temporarily suspended or revoked, after reasonable
notice and public hearing, for cause as outlined in Section 30-20-112, C.R.S.
Issued this 4th day of December 2000, at Weld County, Colorado.
Signe
rbara J. Kirkmeyer, hair gir
Board of County Commissioners
(12/04/2000)
2000-2602
PL1443
Memorandum
TO: Honorable Sean P. Conway, Chair,
Board of County Commissioners
FROM: Troy Swain, Weld County Department of
Public Health & Environment
DATE: April 25, 2912
SUBJECT: A-1 Organics Highway 66 (Platteville)
Composting Facility
The Department respectfully submits to the Board of County Commissioners the Colorado
Department of Public Health and Environments clean closure and release of financial assurance
and the Weld County Department of Public Health and Environment determination that the
facility has been closed in accordance with closure plans.
This information is submitted in order to satisfy the following provision of the Board of County
Commissioners, October 31, 2011, Resolution regarding vacation of A-1 Organics (Highway 66)
Composting facility's USR and Certification of Designation:
NOW, THEREFORE, BE RESOLVED by the Board of County Commissioners
of Weld County, Colorado, that the USR and CD be, and are hereby are, vacated
conditioned, however, upon receipt by the Board of a clean closure approval and
release of financial assurance by the Colorado Department of Public Health and
Environment and a determination by the Weld County Department of Public
Health and Environment that the site has been reclaimed in accordance with the
Closure Plan.
After the Boards review, a copy of this document will be placed in the operating record of the A-
1 Organics Highway 66 (Platteville) Composting Facility and be recorded with the Weld County
Clerk and Recorder.
The following reference documents have been attached: October 31, 2011 Resolution Vacating
USR-1059 & Certificate of Designation (4 pages), March I9, 2012 Colorado Department of
Public Health and Environment clean closure letter (2 pages), A-1 Organics March 24, 1995
Closure Plan ( I page), and photos of the site taken April 13, 2012 (4 photos).
RESOLUTION
RE: ACTION OF BOARD AT SHOW CAUSE HEARING CONCERNING USE BY SPECIAL
REVIEW PERMIT #1059 AND CERTIFICATE OF DESIGNATION FOR A COMPOSTING
FACILITY IN THE A (AGRICULTURAL) ZONE DISTRICT, AND VACATE SAID USR-1O59
AND CD - LAMBLAND, INC., DBA A-1 ORGANICS
WHEREAS, the Board of County Commissioners of Weld County, Colorado, pursuant to
Colorado statute and the Weld County Home Rule Charter, is vested with the authority of
administering the affairs of Weld County, Colorado, and
WHEREAS, on April 27, 2011, a Show Cause Hearing was conducted to consider revocation
of Use by Special Review Permit #1059 and the Certificate of Designation for a Composting Facility
in the A (Agricultural) Zone District, issued to Lambland, Inc., dba A-1 Organics, 7031 State
Highway 66, Platteville, Colorado, and
WHEREAS, Lambland, Inc., dba A-1 Organics, is the current lessee/operator of the facility
located on property being further described as follows:
Part of the W1/2 SW1/4 of Section 20, Township 3
North, Range 67 West of the 6th P.M., Weld County,
Colorado
WHEREAS, at said hearing of April 27, 2011, the Board deemed it advisable to continue the
matter until May 18, 2011, at 10:00 a.m., subject to the following conditions:
1) No other waste shall be brought into the facility.
2) A-1 shall meet with the neighbors and find a solution to mitigate the damage
they have already caused.
3) A-1 shall agree to vacate the USR upon closure of the facility.
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4) A-1 shall work with the County Departments of Planning Services and Public
Health and Environment, as well as the Colorado Department of Public
Health and Environment, to work out key dates in regard to the closure.
5) There will no grinding or movement of the static pile without the approval
from the County Department of Public Health and Environment for a test, and
to the best extent possible, keep the plastic debris from being liberated from
the site.
6) The composted overs piles shall be encased with tackifier instead of the
clean weed materials
7) A-1 shall continue to provide ongoing plastic clean-up and deploy one to two
crews, consisting of approximately four (4) to twelve (12) people, daily to pick
up debris from the neighbor's properties.
L, f. p p /
I3, r -I/
2011-1006
PL1006
DISMISS SHOW CAUSE HEARING AND VACATE U5R #1059 AND CERTIFICATE OF
DESIGNATION - LAMBLAND, INC., DBA A-1 ORGANICS
PAGE 2
8) A-1 shall continue to work with the Department of Planning Services to
investigate additional options for mitigating the potential release of plastic
debris during the grinding of the static processed pile.
WHEREAS, at said hearing of May 18, 2011. after hearing all testimony presented and
accepting the "Updated Plan to Contain and Remove Plastics and Update on Continuing Closure
Activities," dated May 17, 2011, the Board deemed it advisable to continue the matter until
August 22, 2011, at 10:00 a.m., subject to the following conditions, which also incorporate the
recommendations from the staff Memorandum, dated May 18, 2011, a copy of which is attached
hereto and incorporated herein:
1) No other waste shall be brought into the facility.
2) A-1 shall meet with the neighbors and find a solution to mitigate the damage
they have already caused.
3) A-1 shall submit a letter requesting formal vacation of the USR and CD upon
closure of the facility, no later than August 22, 2011. (Merged with Staff
Memo #5 and modified date per Board instruction.)
4) A-1 shall work with the County Departments of Planning Services and Public
Health and Environment, as well as the Colorado Department of Public
Health and Environment, to work out key dates in regard to the closure. No
re -grading, filling, etcetera, shall occur on the site until the closure has been
reviewed and accepted by the Weld County and Colorado Departments of
Public Health and Environment. (Merged with Staff Memo #6)
5) There will no grinding or movement of the static pile without the approval
from the Weld County Department of Public Health and Environment for a
test, and to the best extent possible, keep the plastic debris from being
liberated from the site.
6) The composted avers piles and collected surface layer pile (described on
page 8 of the Updated Plan) shall be encased with tackifier instead of the
clean wood materials to prevent plastics from being liberated. (Merged with
Staff Memo #2)
7) A-1 shall continue to provide ongoing plastic clean-up and deploy one to two
crews, consisting of approximatelyfour (4) to twelve (12) people, daily to pick
up debris from the neighbor's properties.
8) A-1 shall continue to work with the Department of Planning Services to
investigate additional options for mitigating the potential release of plastic
debris during the grinding of the static processed pile.
IIIIII 11111 IIIIII! 1111 III 1111111111111 III IIIII IIII IIII
3812319 12/15/2011 02:32P Weld County, CO
2 of 4 R 0.00 D 0.00 Steve Moreno clerk & Recorder
2011-1006
PL1006
DISMISS SHOW CAUSE HEARING AND VACATE USR #1059 AND CERTIFICATE OF
DESIGNATION - LAMBLAND, INC., DBA A-1 ORGANICS
PAGE 3
9) A-1 shall demonstrate the effectiveness of the litter control fence, described
on page 4 of the Updated Plan, to County staff no later than May 25, 2011,
assuming weather cooperates. (From Staff Memo #1.)
10) The "composted overs pile", which shall be transferred to the Rattler Ridge
facility, shall be processed with similar controls (including litter control fence)
as described in the Updated Plan. (From Staff Memo #4.)
11) The facility shall minimize dust during all operations. In no case shall dust be
allowed to migrate from the facility. (From Staff Memo #3.)
12) The Departments of Planning Services and Public Health and Environment
will monitor progress of the operation and may bring the case back before
the Board of Commissioners should any violation be observed, or should A-1
deviate from the Updated Plan. (From Memo #7.)
WHEREAS, at said hearing of August 22, 2011, after hearing all testimony presented, the
Board deemed it advisable to continue the matter to October 31 2011, at 10:00 a.m., to allow
adequate time to complete removal of materials and return the site to original grade, reclaim the site
in accordance with the Closure Plan, while ensuring that Financial Assurance remains in place
throughout the closure process, and then close the facility on October 31, 2011.
WHEREAS, on October 31, 2011, after hearing all testimony presented to the Board at this
hearing and previous hearings, the Board finds that A-1 Organics accepted unapproved feedstocks
and operated with a resulting litter nuisance, but has since remedied such situations by ceasing to
accept unapproved feedstock, subsequent clean-up of the property and other adjacent and nearby
impacted property, voluntary closure, and conducting an environmental site assessment for closure
purposes, which will be reviewed by the Colorado Department of Public Health and Environment
and provided to the property owner, and
WHEREAS. Lambland, Inc., dba A-1 Organics, is requesting of the Board that the USR and
CD be vacated.
NOW, THEREFORE, BE RESOLVED by the Board of County Commissioners of Weld
County, Colorado, that the USR and CD be, and hereby are, vacated conditioned, however, upon
receipt by the Board of a clean closure approval and release of financial assurance by the Colorado
Department of Public Health and Environment and a determination by the Weld County Department
of Public Health and Environment that the site has been reclaimed in accordance with the Closure
Plan.
I111111 IIII 1111111 I1111II 1111111111111111 liii1 Illl fill
3812319 12/15/2011 02:32P Weld County, CO
3 of 4 R 0.00 D 0.00 Steve Moreno Clerk & Recorder
2011-1006
PL1006
DISMISS SHOW CAUSE HEARING AND VACATE USR #1059 AND CERTIFICATE OF
DESIGNATION — LAMBLAND, INC . DBA A-1 ORGANICS
PAGE 4
The above and foregoing Resolution was, on motion duly made and seconded, adopted by
the following vote on the 31st day of October, A.D., 2011.
BOARD OF COUNTY COMMISSIONERS
WELD COUNTY, COL DO
Weld County Clerk to the Board
Barbara Kirkmeyer,
can P. Con
BY:. CrYLA.I
Deputy Cliirk to the Board
air
, Pro -Tern
F. Garcia
APPROVED AS TO FORM:
• County Attorney
Dougi- Rademache
Date of signature: lc) /..)
11111111111111Illl flit Ill IIl11 Illlllll 111 11111 11111111
3812319 12/15/2011 02'32P Weld County, CO
4 of 4 R 0.00 I] 0.00 Steve Moreno Clerk & Recorder
2011-1006
PL1006
STATE OF COLORADO
John W Hickenlooper, Governor
ChrisrooPer E LJrtrina., MD. MPH
Executive Director and Chief Med,ca' Otliner
Dedicated to protecting and improving the health and environment of the eeople of Colorado
4300 Cherry Creek Dr. S.
Denver, Colorado 80248-1530
Phone (303} 692-2000
Located in Glendale, Colorado
hittralfwww.cdphe.state.co.us
March 19. 2012
Mr. Bob Yost
Vice President
A-1 Organics
16350 WCl2 76
Eaton, Colorado 80615
Laboratory Services Division
8100 Lowry Blvd,
Denver. Colorado 802301-6925
(303) 692-3090
RECEIVED
MAR Z �V 7
ENVIRONMENTAL
NVIRO MENTSERVIL 4.1EALTH
sr -OF COL'
��k
Colorado Department
of Public Health
and Environment
Re. Clean Closure Approval and Release from Post Closure and Financial Assurance Obligations
Al Organics — Highway 66 Organic Composting Site. Weld County, Colorado
Dear Mr. Yost
On December 1, 2011. the Colorado Department of Public Health and Environment, Hazardous Materials and Waste
Management Division ("Division") received a report titled Clean Closure Summary Report Al Organics Hr,hwat 66
Clrguncc Recycling Fucr;irs Weld County- USR 1059 (Report) The Report is dated November 30, 2011. A cover letter dated
November 30, 2011 was attached to the Report from A l Organics requesting. 1 ) No further post closure requirements or
conditions; 21 A notice of satisfactory completion of closure; 3) Weld County vacate the USA 1059 and the Certificate of
Designation for the Facility; and 41 Al will provide the Division with verification that at least 60% vegetative coverage of the
site has been achieved by June 15, 2012.
The Al Organics -Highway 66 Organics Composing Facility ;Facility} received a Certificate of Designation from Weld
County for composting operations in 1995. The 40 acre site was leased from Pete Salarar, land owner, for the use as a
composting facility until it closed in 2011. The Division was formally noticed of the closure in A I Organics' letter dated
October 8, 2010 A revised Closure Plan to achieve "clean closure", dated lune 1, 2011, was submitted to Weld County and
the Division. Environmental soil sampling was conducted, in accordance with the approved July 14. 2011 Soil Sampling
Plan. Results of that sampling were presented in a soil sampling summary report reserved in our office on Scpremhcr 23.
2011.
The facility went through a "clean closure" process where soil samples were collected and analyzed to demonstrate whether
onsitc soils were potentially impacted from the composting operation. Soil sample results indicated that constiruent
concentrations, except arseiric. were equal to or less than the Division's Colorado Soil Evaluation Values {CST -'.Vs) for
unrestricted use. Arsenic levels did exceed the unrestricted use value; however, background arsenic concentrations are similar
to soil sample results provided in the Report.
On November i7. 201 I Division inspectors conducted an inspection of the Facility to determine if closure. activities were
complete and to evaluate the site conditions. The inspectors determined the Facility hail completed all closure activities as
defined in the June 1, 2011 revised Closure Plan. AlI finished product, feedstocks, in process composting and hulking
materials have been removed front the site. The site has been graded and reseeded with native grasses. No ~;groundwater or
gas monitoring had been conducted while the Facility was operating and is not required by the closure plan.
With respect to financial assurance, it is our understanding that Bond 4103198325, issued by Travelers Causality and Surety
Company of America. provides the financial assurance mechanism for two of Al Organics' composting facilities: Lost
Antlers and 11i„ hw'av 66. Lost Antlers facility has been released from its postclosure obligations and the bond amount
reduced accordingly. With this letter, the Highway 66 facility is released from its financial assurance obligations. Please
contact Lnriaue Martinez.. Financial Assurance Analyst, at 303-69l -4054 to discuss this aspect of the process to release the
retraining amount of the Bone! 4103198325 for the Highway 66 facility,
Based on the information referenced in this letter and contained in the Division's administrative record, the Division has: 1}
determined that the Facility. was "clean closed" in accordance with the approved plans, 2) released Al Organics', Highway
66 Organics Composting Facility from its clnsure/postclosure and financial assurance obligations. and 33) issued a No Further
.Action determination relieving Al Organics Highway 66 facility' from any additional closure or post closure activities_ This
letter does not release the Facility from closure or postclosure requirements that Weld County may have defined in USR
1059
The Division is authorized to bill for its review of technical submittals at 1125 per hour, pursuant to Section 1.7 of the Solid
Waste Regulations. An invoice for the Division's review of the subject document will be sent under separate cover.
Should you have an, questions. please call me at (3(03j 692-_4;7.
//
Sincerel
Roger Doak, Unit Leader
Solid Waste Permitting Unit
Solid Waste and Materials Management Program
Hazardous Materials and Waste Management Division
cc. Troy Swain. Weld County
Pete Salazar,
Darlene ?;rims, Flood and Peterson Insurance
David Banas. AGO
ec: Enrique Martinez, SiMVv?vID
Doug 11:enberry. HMWMD
File: SW/WLD,TIWY 2,4.1
Supplemental Closure Plan, Odor, and Fly Control Information
A-1 Organics
Highway 66 Composting Facility
March 24, 1995
Closures In the event that receipt, processing or sales of
materials ceases for a period of more than one year, a notice of
closure shall be submitted in writing to weld County. All
materials, structures and berm's shall be removed within 180 days
of the notice of closure, or as provided for in an approved closure
plan submitted and agreed to by weld County. The closure plan
shall demonstrate the following:
1. All finished or unfinished compost materials shall be removed
from the site.
2. Unfinished compost containing regulated materials such as
sewage biosolids, will be disposed of at an approved land fill
site, or properly applied to permitted farm ground.
3. Finished compost materials (including those having met
requirements for unrestricted use can be used on the site as soil
amendments in amounts deemed necessary by Weld County for
reclamation cf the site. The intent is to use finished compost to
aid in reclamation of the facility, but not use the facility for
permanent storage of finished compost_
4. All fencing, structures (other thin those originally at the
site), and berm's shall be removed from the site_
5. All disturbed areas shall be seeded and mulched in accordance
with recommendations of the Soil Conservation Service within an
additional 30 day period.
6. The facility will be reclaimed to its original condition and
use, including re -vegetation of ground if required.
Odors: Immediate blending cf the materials and repeated aeration
shall be conducted to mitigate, odor problems. Odors which
originate at the composting facility and are measured at the
nearest neighboring populated area will not exceed current or
future limits as defined by Colorivio Air Quality Control
Commission, Regulation No. 2, ODOR EMISSION REGULATIONS. If an
odor violation occurs that can be shown to have originated at the
compost facility, the Weld County Department of Health shall direct
the operator to correct the problem. The operator may use any
acceptable method or combination of methods to mitigate an odor
problem including, but not limited to bio-filtration.. application
.of organic odor control agents, additional aeration, and or changes
in operational parameters such as the time of day when, mixing or
aeration is accomplished.
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3
Troy Swain
From: Troy Swain
Sent: Friday, April 13, 2012 11:26 AM
To: Kim Ogle
Cc: Tom Parko; Trevor Jiricek; Bruce Barker; Doak, Roger
Subject: A-1 Platteville, USR-1059 & CD
Attachments: A-1 Platteville CDPHE Closure Letter 20120329.pdf
A-1 Platteville, USR-1059 & CD
The USR & CD can now be vacated. Also, I checked the site today and grass is starting to come up. Please advise myself
and A-1 Organics regarding the vacation process for USR-1059 & Certificate of Designation.
Troy E. Swain
Waste Program Coordinator
Weld County Dept. of Public Health & Environment
1555 N. 17th Avenue
Greeley, CO 80631
(970) 304-6415, ext. 2219
(970) 673-2218 (cell)
(970) 304-6411 (fax)
Confidentiality Notice: This electronic transmission and any attached documents or other writings are intended only for
the person or entity to which it is addressed and may contain information that is privileged, confidential or otherwise
protected from disclosure. If you have received this communication in error, please immediately notify sender by return
e-mail and destroy the communication. Any disclosure, copying, distribution or the taking of any action concerning the
contents of this communication or any attachments by anyone other than the named recipient is strictly prohibited.
1
STATE OF COLORADO
John W. Hickenlooper, Governor
Christopher E. Urbina, MD, MPH
Executive Director and Chief Medical Officer
Dedicated to protecting and improving the health and environment of the people of Colorado
4300 Cherry Creek Dr. S.
Denver, Colorado 80246-1530
Phone (303) 692-2000
Located in Glendale, Colorado
http://www.cdphe.state.co.us
March 19, 2012
Mr. Bob Yost
Vice President
A-1 Organics
16350 WCR 76
Eaton, Colorado 80615
Laboratory Services Division
8100 Lowry Blvd.
Denver, Colorado 80230-6928
(303) 692-3090
RECEIVED
MAR Z9 LC ,'
ENVIRONMEAL HEALTH
TSERVICES
Colorado Department
of Public Health
and Environment
Re: Clean Closure Approval and Release from Post Closure and Financial Assurance Obligations
Al Organics — Highway 66 Organic Composting Site, Weld County, Colorado
Dear Mr. Yost:
On December 1, 2011, the Colorado Department of Public Health and Environment, Hazardous Materials and Waste
Management Division ("Division") received a report titled Clean Closure Summary Report Al Organics Highway 66
Organic Recycling Facility Weld County USR 1059 (Report) The Report is dated November 30, 2011. A cover letter dated
November 30, 2011 was attached to the Report from Al Organics requesting: 1) No further post closure requirements or
conditions; 2) A notice of satisfactory completion of closure; 3) Weld County vacate the USR 1059 and the Certificate of
Designation for the Facility; and 4) Al will provide the Division with verification that at least 60% vegetative coverage of the
site has been achieved by June 15, 2012.
The Al Organics -Highway 66 Organics Composting Facility (Facility) received a Certificate of Designation from Weld
County for composting operations in 1995. The 40 acre site was leased from Pete Salazar, land owner, for the use as a
composting facility until it closed in 2011. The Division was formally noticed of the closure in Al Organics' letter dated
October 8, 2010. A revised Closure Plan to achieve "clean closure", dated June 1, 2011, was submitted to Weld County and
the Division. Environmental soil sampling was conducted, in accordance with the approved July 14, 2011 Soil Sampling
Plan. Results of that sampling were presented in a soil sampling summary report received in our office on September 23,
2011.
The facility went through a "clean closure" process where soil samples were collected and analyzed to demonstrate whether
onsite soils were potentially impacted from the composting operation. Soil sample results indicated that constituent
concentrations, except arsenic, were equal to or less than the Division's Colorado Soil Evaluation Values (CSEVs) for
unrestricted use. Arsenic levels did exceed the unrestricted use value; however, background arsenic concentrations are similar
to soil sample results provided in the Report.
On November l7, 2011 Division inspectors conducted an inspection of the Facility to determine if closure activities were
complete and to evaluate the site conditions. The inspectors determined the Facility had completed all closure activities as
defined in the June 1, 2011 revised Closure Plan. All finished product, feedstocks, in process composting and bulking
materials have been removed from the site. The site has been graded and reseeded with native grasses. No groundwater or
gas monitoring had been conducted while the Facility was operating and is not required by the closure plan.
With respect to financial assurance, it is our understanding that Bond #103198325, issued by Travelers Causality and Surety
Company of America, provides the financial assurance mechanism for two of Al Organics' composting facilities: Lost
Antlers and Highway 66. Lost Antlers facility has been released from its postclosure obligations and the bond amount
reduced accordingly. With this letter, the Highway 66 facility is released from its financial assurance obligations. Please
contact Enrique Martinez, Financial Assurance Analyst, at 303-691-4054 to discuss this aspect of the process to release the
remaining amount of the Bond #103198325 for the Highway 66 facility.
Based on the information referenced in this letter and contained in the Division's administrative record, the Division has: 1)
determined that the Facility was "clean closed" in accordance with the approved plans, 2) released Al Organics', Highway
66 Organics Composting Facility from its closure/postclosure and financial assurance obligations, and 3) issued a No Further
Action determination relieving Al Organics Highway 66 facility from any additional closure or post closure activities. This
letter does not release the Facility from closure or postclosure requirements that Weld County may have defined in USR
#1059.
The Division is authorized to bill for its review of technical submittals at $125 per hour, pursuant to Section 1.7 of the Solid
Waste Regulations. An invoice for the Division's review of the subject document will be sent under separate cover.
Should you have an questions, please call me at (303) 692-3437.
Sincere
Roger Doak, Unit Leader
Solid Waste Permitting Unit
Solid Waste and Materials Management Program
Hazardous Materials and Waste Management Division
cc. Troy Swain, Weld County
Pete Salazar,
Darlene Krings, Flood and Peterson Insurance
David Banas, AGO
ec: Enrique Martinez, HMWMD
Doug Ikenberry, HMWMD
File: SW/WLD/HWY 2,4.1
organics
Colorado's Leader in Organic Recycling
January 31, 2018
Mr. Ben Frissell
Waste Program Coordinator
Weld County Department of Public Health and Environment
Environmental Health Services
1555 North 17th Avenue
Greeley, Colorado 80631
SUBJECT: WCOPHE Correspondence — January 25, 2018
January 19, 2018 Inspection
Al Organics, Rattler Ridge Composting Facility
Keenesburg, Weld County, Colorado
Dear Mr. Frissell:
We received your request for response related to the January 19, 2018 inspection. All waste
materials are handled and processed in accordance with best management practices to the
best of our ability. Unfortunately, extreme weather is uncontrollable.
Al intends to continue to make improvements to our facility to further control debris leaving
the facility. As documented in our January 3, 2018 email, we have installed a weather
monitoring station to monitor wind speed and direction to aid screening decisions, and we are
hiring labor to clean up debris that has migrated off site.
Further, as documented in our January 10, 2018 email, we had contracted to purchase an 18'
litter fence to install on the east and southeast area of the facility where a majority of the
debris collects. Al suspended the construction of the fence at the request of our neighbor.
Given the current situation and duty to comply with the development standards, we are now
actively pursuing the litter fence construction. We intend to have the fence constructed no
later than 180 days from the date of this letter. In the meantime, we are procuring equipment
and labor to control debris from leaving the facility, and providing the necessary clean-up of
debris that has migrated off of the facility.
Al Organics Corporate Headquarters: 16350 WCR 76 • Eaton, Colorado 80615
Tel 970-454-3492 • 800-776-1644 • Fax 970.454-3232
Facilities: Eaton • Keenesburg • Stapleton
Las Vegas, Nevada
www,alorganics.com
US
Composting
Council
Sear at Testing
Assurnuce
organics
Colorado's Leader in Organic Recycling
We believe the actions we are taking will significantly reduce debris migrating off of our facility.
Should you require additional information, please contact us at your convenience.
Regards,
ff f/t fff
Chris Skelton, P.G.
Geologist / Regulatory & EHS Officer
Al Organics Corporate Headquarters: 16350 WCR 76 • Eaton, Colorado 80615
Tel 970-454-3492 • 800-776-1644 • Fax 970-454-3232
Facilities: Eaton • Keenesburg • Stapieton
Las Vegas, Nevada
www.alorganlcs.com
US
Composting
Council
Seat of Testing
,assurnrrcwe
WELD COUNTY DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
1555 North 17th Avenue, Greeley, CO 80631 www.weldhea!th.org
January 25, 2018
A-1 Organics
Mr. Chris Skelton
16350 WCR 76
Eaton, CO 80615
Subject: A-1 Organics, Rattler Ridge (Keenesburg) Compost Facility— Blowing
Debris/Litter Off -Site.
Dear Mr. Skelton:
During the Weld County Department of Public Health and Environment's (WCDPHE) last
inspection of the Rattler Ridge Organic Recycling Facility, located at 12002 Weld County Road
59, conducted December 1, 2017, and outlined in a January 3, 2018, inspection letter, it was
noted that there was windblown debris/litter that had left the site boundaries. Information on
how A-1 planned on dealing with the debris was requested in the initial inspection letter and a
response was received on January 10, 2018, in the form of an email. A-1 indicated several
methods to help reduce and remove this debris/litter including: procurement of a slow speed
shredder; re -configuring wind row sizing and construction; adding additional capping methods;
purchasing a high volume and high suction power vacuum truck to pick up litter; using hired
labor to pick up debris; and, purchasing an industrial grade 18 -foot litter fence to be installed
along the east and southeast portions of the property. It appears that hired labor has been
implemented, but no other options have been used or a timeline for implementation established.
On January 18, 2018, WCDPHE received a complaint of debris/litter blowing off -site and onto
neighboring properties from the A-1 Facility. An inspection of the property conducted by a
representative of this department on January 19, 2018, found significant debris on neighboring
properties outside the Rattler Ridge property boundary.
In accordance with Development Standard 13 of USR-1285, "Waste materials shall be handled,
stored and disposed of in a manner that controls fugitive dust, blowing debris and other potential
nuisance Conditions". Based on observations made during the initial inspection on December 1,
2017, and in response to a compliant made on January 18, 2018, it appears that A-1 is in
violation of the above Development Standard.
It is expected that you comply with all applicable regulations immediately. A written/electronic
response is requested, which shall include a timeline for methods presented by A-1 in their
January 10, 2018, email to deal with the current debris blown off -site and how the Facility will
prevent future occurrences. WCDPHE recognizes the efforts by A-1, but the problem persists.
Please inform us of your intentions within ten (10) days of the date of this letter. Failure to
Health Administration
Vital Records
lcic: 9/0 304 6410
Fax: 9/0-301-6412
Public Health &
Clinical Services
lobe: 9/0 304 6420
Fax: 4 /0-304-6416
Environmental Health
Services
Tele: 970-304-6415
Fax: 970-304-6411
Communication,
Education & Planning
Tele: 970-304-5470
Fox: 970-304-5452
Emergency Preparedness
& Response
Tele: 970-304-M70
Fax: 970-3304-6452
Public Health
comply with your Development Standards will result in a Probable Cause/Show Cause hearing
before the Board of County Commissioners. If you have any questions, please contact me at
(970) 400-2220.
Sincerely,
Ben Frissell
Environmental Health Specialist
Waste Program Coordinator
Weld County Department of Public Health and Environment
Environmental Health Services
ec: Bob Yost, A-1 Organics
Tom Parko, Weld County Department of Planning Services
Michelle Martin, Weld County Department of Planning Services
Deb Adamson, Weld County Department of Public Health and Environment
Lauren Light, Weld County Department of Public Health and Environment
RE Odor Complaint
From:
Sent:
To:
Cc:
Driver - CDPHE, ]ace
Subject: RE: Odor Complaint
Heather Barbare
wednesday, August 27, 2014 10:43 AM
`BOb Yost`
Kent Pendley; Carole Gerkin; Ikenberry CDPHE, Doug; ]ames Taloumis;
Thank you, Bob.
weld County considers both BiOWiSH and ProBIO-K2 approved feedstocks and has added
this
information to county files.
Heather Barbare
Environmental Health Specialist, Waste Program Coordinator
weld County Department of Health & Environment
1555 N 17th Ave
Greeley, CO 80631
hbarbare@co.weld.co.us
970-304-6415 Ext. 2223
Confidentiality Notice: This
other writings are
intended only for the person
information that is
privileged, confidential
received this
communication
destroy the
communication
or
electronic transmission
or entity to which
otherwise protected
in error, please
and any attached documents or
it is addressed and may contain
from disclosure. If you have
immediately notify sender by return e-mail and
Any disclosure, copying, distribution or the taking of any action
concerning the
contents of this communication or any attachments by anyone other than the named
recipient is
strictly prohibited.
From: Bob Yost [mailto:BobYost@a1organics.com]
Sent: Tuesday, August 19, 2014 12:31 PM
To: Heather Barbare
Cc: Kent Pendley; Carole Gerkin; Ikenberry - CDPHE, Doug; James
CDPHE, Jace
Subject: RE: Odor Complaint
Heather,
Thank you for your response. As
Manual for Rattler Ridge
that included the information
not at Rattler
Ridge. I will have that manual taken to the site
your review:
a point of note,
you requested. But
Taloumis; Driver
I had created a site Facility
the manual was in my office...and
. I attached the following for
Odor Corrective Actions SOP
MSAP/AW SOP that identifies corrective actions related to Odor
Biowish MSDS and information
ProBio SOP, MSDS, and process information.
we had discussed the Biowish and ProBio products during meetings with Doug
Ikenberry, Roger Doak,
and Troy Swain over the past 2 years related to working through the revised EDOP
Page 1
RE Odor Complaint
process for Eaton.
we had not considered them to be feedstock related at that time. However I am
respectful of the
current D&O plan at Rattler Ridge and am attaching the information related to them
here to formally
request approval of these products. Our desire is to research their capacity for
improved odor
management and composting efficiency
Regards,
Bob Yost
vice President,
Chief Technical Officer
Ph: 970-454-3492 ext 1014
Cell: 303-710-9121
bobyost@alorganics.com
website: www.alorganics.com
Al Organics on: Twitter Facebook
Compost: Nature's Way to Grow!
? Please consider the environment and only print this e-mail if you must. Think
Green and Reduce,
Reuse, Recycle
From: Heather Barbare [mailto:Hbarbare@co.weld.co.us]
Sent: Friday, August 15, 2014 11:21 AM
To: Bob Yost
Cc: Kent Pendley; Carole Gerkin; Ikenberry - CDPHE, Doug; James Taloumis; Driver -
CDPHE, Jace
Subject: RE: Odor Complaint
Bob,
weld County appreciates the time A-1 staff took yesterday to show us around the
Rattler Ridge
facility, show us the new windrow turner, and demonstrate the methods you outlined
below. weld
County collected odor readings at the facility and noted that the odor readings met
USR-1285
Development Standard #9 requirements. This development standard refers to the Odor
Abatement
Plan and measures that will be taken in the judgment of the weld County Health
Officer. In
accordance with this USR Development Standard, please provide the odor response SOP
referenced
below, as this was not available onsite yesterday. weld County noted that measures
were being
conducted to reduce standing water (no pooling was observed at the time of the
visit). Additionally,
weld County noted the sign in the office indicating drivers should reduce their
speeds and cover their
loads. weld County observed drivers following these procedures.
weld County observed use of a Manetech product, Probio-K2, at the facility.
Probio-K2 was being
mixed with waste -slurry and applied to a test area and to windrows. An SDS was not
Page 2
RE Odor Complaint
available onsite
for this material/chemical. Please provide the SDS sheet and analytical information
for this feedstock
ASAP. Additionally, when we spoke on the phone, you mentioned the future (Monday)
use of a
product called Biowish. Please also provide an SDS sheet/analytical information for
Biowish. weld
County appreciates A -1's pro -active approach to odor reduction; however, weld County
currently
considers these "odor reduction materials" to be feedstock materials and A -1's
current EDOP indicates
"prior to receipt of new materials, the operator will contact the governing body,
describe the new
feedstock and determine what, if any analytical information is required."
Additionally, A-1 must
comply with all federal regulations and OSHA's Hazardous Communication Standard
(including having
SDS sheets onsite as needed). weld County is excited to learn more about the ways in
which Probio
and Biowish may assist with odor control and look forward to innovative solutions to
implement
nuisance control measures. Please provide SDS sheets and information about these
measures (SOPS)
immediately.
Thanks for your attention to this matter.
Heather Barbare
Environmental Health Specialist, waste Program Coordinator
weld County Department of Health & Environment
1555 N 17th Ave
Greeley, CO 80631
hbarbare@co.weld.co.us
970-304-6415 Ext. 2223
Confidentiality Notice: This electronic transmission and any attached documents or
other writings are
intended only for the person or entity to which it is addressed and may contain
information that is
privileged, confidential or otherwise protected from disclosure. If you have
received this
communication in error, please immediately notify sender by return e-mail and
destroy the
communication Any disclosure, copying, distribution or the taking of any action
concerning the
contents of this communication or any attachments by anyone other than the named
recipient is
strictly prohibited.
From: Bob Yost [mailto:BobYost@alorganics.com]
Sent: Wednesday, August 13, 2014 8:51 PM
To: Heather Barbare
Cc: Kent Pendley; Carole Gerkin
Subject: Odor Complaint
Heather,
my apologies for the delay in sending this to you.
we are aware of recent odor issues at Rattler Ridge. Odors have not been an issue
Page 3
RE Odor Complaint
in the past. we
believe the incidence resulted in a large part from the significant rain received
at the site over the past
few weeks. we received several multiple inch events from thunderstorms. odor
issues were limited
to the foodwaste composting area at the site. The windrows were quite saturated.
The significant
rain had a similar effect to what is created at a feedlot that receives significant
moisture. In those
conditions, anaerobic conditions can be created which result in increased odor
potential.
we purchased a new windrow turner and it now operational and on site. we have begun
aggressive
aeration of the foodwaste windrows to return them to aerobic conditions and return
the site to its
previous condition. our odor response SOP requires increased aeration.
Additionally we are applying a biological additive designed to control odors to a
test windrow to
ascertain its effectiveness. That material is being applied Monday the 18th to 2
test windrows to test its
effectiveness.
site operators will also be instructed to make sure there is no standing water or
pooling present (also a
part of our Odor Response sOP).
Regarding the comment related to uncovered loads. There are numerous trucks
accessing the road to
the landfill as well as our site of course. But assuming they were trucks accessing
our sites, we have
notified all of our hauling companies and instructed them to notify all of their
drivers regarding the
requirement to cover loads and to strictly observe speed limits. we have posted
additional signs in the
office related to those requirements as well and we will instruct our office and
site personnel to
verbally instruct drivers to that loads must be covered and to observe all speed
limits.
sincerely
Bob Yost
vice President,
Chief Technical officer
Ph: 970-454-3492 ext 1014
Cell: 303-710-9121
bobyost@alorganics.com
website: www.alorganics.com
Al organics on: Twitter Facebook
Compost: Nature's way to Grow!
? Please consider the environment and only print this e-mail if you must. Think
Green and Reduce,
Reuse, Recycle
Page 4
DOPHE 136
HAZARDOUS MATERIALS
SW 1.6._2732
BOX#
249
• Sw4b//16w /6
RESOLUTION
RE: ACTION OF BOARD AT PROBABLE CAUSE HEARING CONCERNING USE BY
SPECIAL REVIEW PERMIT #1059 AND CERTIFICATE OF DESIGNATION -
LAMBLAND, INC., DBA A-1 ORGANICS
WHEREAS, the Board of County Commissioners of Weld County; Colorado, pursuant to
Colorado statute and the Weld County Home Rule Charter, is vested with the authority of
administering the affairs of Weld County, Colorado, and
WHEREAS, on the 13th day of April, 2011, a Probable Cause Hearing was held before the
Board to consider setting a Show Cause Hearing to determine whether or not Lambland, Inc., dba
A-1 Organics, Attn: Charles Wilson, 16350 County Road 76, Eaton, Colorado 80615, was in
compliance with certain Conditions of Approval and Development Standards contained in Use by
Special Review Permit #1059 and the Certificate of Designation for a Composting Facility in the
A (Agricultural) Zone District, and
WHEREAS, the alleged violations were said to be occurring on property described as part of
the W1/2 SW1/4 of Section 20, Township 3 North, Range 67 West of the 6th P.M., Weld County,
Colorado, and
WHEREAS, after hearing testimony from the Departments of Planning Services and Public
Health and Environment, the Board finds that pursuant to the procedure as set forth in Chapter 2,
Administration, the Weld County Code there is sufficient probable cause to schedule a Show Cause
Hearing to consider whether or not said Use by Special Review Permit should be revoked for failure
to comply with certain Conditions of Approval and Development Standards, and
WHEREAS, the Board shall hear evidence and testimony from all interested parties at said
Show Cause Hearing.
NOW, THEREFORE, BE IT RESOLVED by the Board of County Commissioners of Weld
County, Colorado, that a Show Cause Hearing be scheduled to determine whether or not Use by
Special Review Permit #1059 and the Certificate of Designation, issued to Lambland, Inc., dba A-1
Organics, should be revoked.
BE IT FURTHER RESOLVED by the board that the date for the Show Cause Hearing shall
be April 27, 2011, at or about 10:00 a.m., in the First Floor Hearing Room of the Weld County
Centennial Center, 915 10th Street, Greeley, Colorado.
BE IT FURTHER RESOLVED by the Board that the issue to be considered at said Show
Cause Hearing is whether or not the permit holder is in compliance with the following Conditions of
Approval and Development Standards:
1) Development Standard #3 -'The Weld County Health Department and the Weld
County Planning Department shall be notified, in writing, of any new materials (other
than manure/bedding) proposed for composting. Written approval to proceed with
composting shall be obtained from the Weld County Health Department prior to
receipt of the new material. Submittal information shall include operational
procedures and storage procedures. All materials considered for composting shall
meet current and future regulatory requirements for that specific material. No dead
animals shall be composted on site."
CC:'PL ,HLrAppl.1kttorn
2011-0941
PL1006
• •
SET SHOW CAUSE - LAMBLAND, INC., DBA A-1 ORGANICS (USR #1059 AND CERTIFICATE
OF DESIGNATION)
PAGE 2
2) Development Standard #5 - "No stockpiling of raw material such as manure/bedding,
food waste, biosolids, or any other approved putrescible material shall be allowed on
site. All raw, uncomposted material shall be placedin windrows or other processing
unit within 72 hours upon receipt at the facility. This shall not include bulking agents
such as wood chips, grass clippings, etc., and liquid biosolids stored within approved
closed storage tanks.°
3) Development Standard #9 - "Waste materials shall be handled, stored, and disposed
of in a manner that controls fugitive dust, blowing debris, and other potential
nuisance conditions."
4) Development Standard #13 - "Any solid waste as defined in the regulations
pertaining to Solid Waste Disposal Sites and Facilities (6 CCR 1007-2) received or
generated at the site must be removed and disposed of at an approved sanitary
landfill."
5) Development Standard #19 - 'The facility shall comply with the Regulations
Pertaining to Solid Waste Disposal Sites and Facilities (6 CCR 1007-2), and the
facility shall also comply with an composting regulations promulgated pursuant to the
Solid Waste Act, Section 30, Article 20, Part 1, C.R.S.°
The above and foregoing Resolution was, on motion duly made and seconded, adopted by
the following vote on the 13th day of April, A.D., 2011.
ATTEST:
Weld County Clerk
BY.
Deputy Clerk to the
Date of signature: /20
i.J
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BOARD OF COUNTY COMMISSIONERS
WID COUNTY, COLORADO
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WELD COUNTY DEPARTMENT OF PUBLIC HEALTH AND ENVIRONMENT
1555 North 17th Avenue, Greeley, CO 80631 www.weldhea!th.org
February 1, 2018
A-1 Organics
Mr. Chris Skelton
16350 WCR 76
Eaton, CO 80615
Subject: A-1 Organics, Rattler Ridge (Keenesburg) Compost Facility— Blowing
Debris/Litter Off -Site. Response to A-1 Organics' January 31, 2018 letter.
Dear Mr. Skelton:
Weld County received A-1 Organics' response to the Weld County Department of Public Health
and Environment's (WCDPHE) letter dated January 25, 2018, titled "A-1 Organics, Rattler
Ridge (Keenesburg) Compost Facility- Blowing Debris/Litter Off -site". Thank you for the
timely response, however, a more detailed timeframe regarding the fence installation and work
being done in the interim is still needed.
As part of A -1's response, you indicate that the fence will be constructed no later than 180 days
from the date of your letter, January 31, 2018. WCDPHE feels that this timeline is vague and
much longer than needed. Please provide documentation that work has begun on hiring a
fencing company and a more accurate timeline of when work is likely to be completed. This
should also include specifics as to what type of fence is being proposed. In previous
conversations with A-1, it was noted that there may be a 5 -week lead time for the fence
construction. This is significantly shorter than the 180 days proposed.
Additionally, it was noted that labor would be hired to clean up debris that migrated off site.
While this is acceptable, please provide a more thorough explanation of what this work will
consist of and how A-1 plans to monitor this progress. Specifically, include information on how
debris will be removed from neighboring properties and steps A-1 will take to gain access to
these properties along with any other pertinent information.
A written/electronic response is requested, which shall include a more detailed timeline for the
fence construction, information regarding the fencing being proposed and methods to deal with
the current debris blown off -site including access to private property. Please inform us of your
intentions within seven (7) days of the date of this letter. Failure to comply with your
Development Standards, previously outlined, will result in a Probable Cause/Show Cause
hearing before the Board of County Commissioners. If you have any questions, please contact
me at (970) 400-2220.
Health Administration
Vital Records
lcic: 9/0 304 6410
Fax: 9/0-301-6412
Public Health &
Clinical Services
lobe: 9/0 304 6420
Fax: 4 /0-304-6416
Environmental Health
Services
Tele: 970-304-6415
Fax: 970-304-6411
Communication,
Education & Planning
Tele: 970-304-5470
Fox: 970-304-5452
Emergency Preparedness
& Response
Tele: 970-304-M70
Fax: 970-3304-6452
Public Health
Sincerely,
Ben Frissell
Environmental Health Specialist
Waste Program Coordinator
Weld County Department of Public Health and Environment
Environmental Health Services
ec: Bob Yost, A-1 Organics
Tom Parko, Weld County Department of Planning Services
Michelle Martin, Weld County Department of Planning Services
Deb Adamson, Weld County Department of Public Health and Environment
Lauren Light, Weld County Department of Public Health and Environment
Esther Gesick
From:
Sent:
To:
Cc:
Subject:
Attachments:
Karla Ford
Friday, February 23, 2018 11:06 AM
Steve Moreno; Sean Conway; Mike Freeman; Julie Cozad
Barbara Kirkmeyer; Esther Gesick
FW: Al Organic Environmental Assessment - Part 1
Final Report to Weld County Binder - Part 1 - 20180222.pdf
Commissioner Kirkmeyer requested I forward to all of you.
Karla Ford
Office Manager, Board of Weld County Commissioners
1150 O Street, P.O. Box 758, Greeley, Colorado 80632
:: 970.336-7204 :: kford@weldgov.com :: www.weldgov.com
My working hours are Monday -Thursday 7:00a.m.-4:00 p.m.
Friday 7:00a.m. - Noon
Confidentiality Notice: This electronic transmission and any attached documents or other writings are intended only for the person or entity to which it is addressed
and may contain information that is privileged, confidential or otherwise protected from disclosure. If you have received this communication in error, please
immediately notify sender by return e-mail and destroy the communication. Any disclosure, copying, distribution or the taking of any action concerning the contents of
this communication or any attachments by anyone other than the named recipient is strictly prohibited.
From: Dave Stewart[mailto:dave.stewart@stewartenv.com]
Sent: Thursday, February 22, 2018 4:23 PM
To: Karla Ford <kford@weldgov.com>
Cc: Art Guttersen (artguttersen@icloud.com) <artguttersen@icloud.com>; Barbara Kirkmeyer
<bkirkmeyer@weldgov.com>; Ben Frissell <bfrissell-durley@weldgov.com>; douglas.ikenberry@state.co.us
Subject: Al Organic Environmental Assessment - Part 1
Ms. Ford, I am sending you this letter report on behalf of Mr. Art Guttersen and at the suggestion of Ms. Barbara
Kirkmeyer (this is two parts as the report is too large to be accepted in one email). This report has been submitted as
part of an effort to bring attention to the issues of odor, blowing trash and flies at the Al Facility.
I understand that you will distribute this to the various parties at Weld County including the county attorney, director of
planning and environmental health director.
I have copied Mr. Guttersen, Ms. Kirkmeyer, Mr. Frissel (Weld County) and Mr. Ikenberry (CDPHE) as I have
communicated directly with them and they requested a copy.
Please let me know if I need to do anything else as part of this submittal.
Thank you for your help.
Dave Stewart
1
Kimberly Dewey
From:
Sent:
To:
Subject:
Attachments:
Esther Gesick
Friday, February 23, 2018 8:51 AM
Chloe Rempel; Kimberly Dewey
FW: Al Organics - Environmental Review - Part 2
image001.emz; Final Report to Weld County Binder - Part 2 - 20180222.pdf
From: Dave Stewart[mailto:dave.stewart@stewartenv.com]
Sent: Thursday, February 22, 2018 4:24 PM
To: Karla Ford <kford@weldgov.com>
Cc: Art Guttersen (artguttersen@icloud.com) <artguttersen@icloud.com>; Barbara Kirkmeyer
<bkirkmeyer@weldgov.com>; Ben Frissell <bfrissell-durley@weldgov.com>; douglas.ikenberry@state.co.us
Subject: Al Organics - Environmental Review - Part 2
Ms. Ford, this is part 2 of my earlier email.
Thank you for your help.
Dave Stewart
;rtewart Enrrr:naMlital
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David R Stewart, PhD, PE
President and CEO
Stewart Environmental Consulting Group, LLC
748 Whalers Way, Suite 210
Fort Collins, Colorado 80525
t: 970-226-5500
c: 970-217-6501
f: 970-226-4946
e: dave.stewart@stewartenv.com
w: www.stewartenv.com
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