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MEMORANDUM
er d ✓.r ���
TO: Robert Anderson,Planner I DATE: Septee mber I$ 001
L,„FROM: Drew Scheltinga,Engineering Supervisor
lout SUBJECT: Z-564: Garcia PUD Subdivision
COLOR. A no
The Weld County Public Works Department has reviewed this PUD Change of Zone request. Comments made during this phase
of the process may not be all-inclusive,as other concerns or issues may arise during the remaining application process.
COMMENTS:
External Roadways: WCR 3 is designated as a local roadway in the Weld County Comprehensive Transportation Plan. Local
roadways require a minimum 60-foot right-of-way. The developer will be required to dedicate a 30-foot right-of-way on the
east boundary of this parcel. Intersection sight distance triangles will be shown on the plat. All landscaping in the intersection
sight distance triangles must be less than 3.5 feet high at maturity.
Internal Roadways: All PUD roadways are paved. The internal subdivision paved roadways consist of two 12-foot travel
lanes with 4-foot gravel shoulders. Stop signs and street name signs will be required at all intersections. The internal roadway
will need to dedicate a 60-foot right-of-way. The maximum block length is 1500 feet. All lots within the subdivision shall use
the internal roadway system. Parallel roadway alignments are undesirable according to the Weld County Code. I have visited
the site and believe the internal roadway should be located toward the middle of the parcel. The developer has not discussed
the roadway alignment with the Public Works Department. The roadway alignment should be changed.
Storm Water: A drainage report signed by a professional engineer licensed in the State of Colorado will be required at the
change of zone. The report was not included in my packet.
Traffic Impacts: WCR 3 in the vicinity of this site has 182 vehicles per day(vpd). This development will increase the traffic
beyond the allowed 200 vpd. The developer will need to submit a mitigation plan.
RECOMMENDATION: Approval
DEVELOPMENT CONDITIONS(If Approved):
❑ The internal roadways will be constructed to be consistent with the subdivision regulations. The cul-de-sac edge of
pavement radius shall be 50 feet.
❑ The roadways shall be realigned to allow adequate separation from WCR 3.
❑ The required right-of-way for the internal and external roadways shall be dedicated to Weld County.
❑ A stop sign and street name sign shall be placed at all intersections.
❑ Landscaping within the intersection sight distance triangle shall be less than 3.5 feet at maturity.
❑ A drainage study shall be submitted at the change of zone stage.
❑ A traffic mitigation plan will be submitted for review.
If you have any questions,please call.
pc: Z-564
WCR 3 2002-0514
M:\W PFILES\diane\DEV ELOPMENT\Z-564.wpd
EXHIBIT
//
t.
MEMORANDUM
W�`�p�• TO: Robert Anderson, WC Planning DATE: September 26, 2001
COLORADO FROM: Pam Smith, W.C. Department of Public Health and fri-
Environment
CASE NO.: Z-564 NAME: Fran Garcia PUD
The Weld County Department of Public Health and Environment has reviewed this proposal. The proposed
development submitted in the sketch plan was for 5 lots, with a minimum lot size of 4.66 acres. The current
application under review shows the applicant has reduced the lot sizes for Lots 1 through 4, varying from 2.6
acres to 2.8 acres. Lot 5 remains roughly the same size(10.25 acres)as does the overall density of one septic
system per 5.8 acres.
The application has satisfied Chapter 27 of the Weld County Code in regard to water service. Water is to be
provided by the Little Thompson Water District. No evidence that Little Thompson Water District will be able to
provide service to the development was included in the application materials.
The application has satisfied Chapter 27 of the Weld County Code in regard to sewer service.
Sewer will be provided by individual sewage disposal systems. As discussed above,the overall density meets
the current Department policy. However, because of the reduced lot sizes for Lots 1-4 and preliminary
percolation rates from the report submitted by Scott, Cox and Associates dated January 3,2001 indicate most
lots (specifically Lots 3,4, and 5)will require engineered septic systems, the Department is now requiring that
primary and secondary septic system envelopes be placed on Lots 1-4 and be recorded on any plat. The
preliminary percolation test data indicate that the septic envelopes for Lots 3 and 4 will be much larger that for
Lots 1 and 2, and can be adjusted accordingly.
Further, the Department recommends that the septic envelopes be preserved in a manner that will allow it's
future use in the development covenants. Specifically, the development covenants should address activities
such as landscaping (i.e. planting of trees and shrubs)and construction (i.e. auxiliary structures, dirt mounds,
etc.) should be expressly prohibited in the designated septic envelopes.
The initial impact plan submitted in the application materials appears to address all impacts as required by
Section 27-6-40 of the Weld County Code.
The Department recommends approval with the following conditions:
1. Water service shall be obtained from the Little Thompson Water District.
2. A Weld County Septic Permit is required for each proposed septic system and shall be installed according
to the Weld County Individual Sewage Disposal System Regulations. Each septic system shall be
designed for site-specific conditions, including but not limited to maximum seasonal high groundwater,
poor soils, and shallow bedrock.
3. Language for the preservation and/or protection of the second absorption field envelope shall be placed in
the development covenants. The covenants shall state that activities such as landscaping(i.e.planting
of trees and shrubs) and construction (i.e. auxiliary structures, dirt mounds, etc.) are expressly
prohibited in the designated absorption field site.
4. The applicant shall obtain a storm water discharge permit from the Water Quality Control Division of the
Colorado Department of Public Health and the Environment,if required. Silt fences shall be maintained
on the down gradient portion of the site during all parts of the construction phase of the project.
5. During development of the site,all land disturbance shall be conducted so that nuisance conditions are n•
created. If dust emissions create nuisance conditions, at the request of the Weld County Healt �..
Department, a fugitive dust control plan must be submitted. CO
6. In accordance with the Regulations of the Colorado Air Quality Control Commission any development tha
disturbs more than 5 acres of land must incorporate all available and practical methods which an
technologically feasible and economically reasonable in order to minimize dust emissions.
win
Fran Garcia PUD
CASE NO.: Z-564
September 26, 2001
Page 2
7. If land development creates more than a 25 acre contiguous disturbance,or exceeds 6 months in duration,
the responsible party shall prepare a fugitive dust control plan, submit an air pollution emissions notice,
and apply for a permit from the Colorado Department of Public Health and Environment.
8. "Weld County's Right to Farm"as provided in Appendix 22-E of the Weld County Code shall be placed on
any recorded plat.
O:\PAM\P lanning\chzone\z564.doc
I
KitWeld County Referral
WIlD
September 10, 2001
C
COLORADO
The Weld County Department of Planning Services has received the following item for review:
Applicant Fran Garcia Case Number Z-564
Please Reply By October 1, 2001 Planner Robert Anderson
Project Change of Zone from A(Agricultural)to E (Estate)for a Five (5) Lot PUD.
Legal Lot A of RE-2509, being a part of the NE4 of Section 6, T4N, R68W of the 6th
P.M., Weld County, Colorado.
Location West of and adjacent to WCR 3 and south of and adjacent to State Hwy 60.
Parcel Number 1061 06 000072
The application is submitted to you for review and recommendation. Any comments or recommendation
you consider relevant to this request would be appreciated. Please reply by the above listed date so that
we may give full consideration to your recommendation. Any response not received before or on this date
may be deemed to be a positive response to the Department of Planning Services. If you have any further
questions regarding the application, please call the Planner associated with the request.
Weld County Planning Commission Hearing (if applicable) November 20, 2001
❑ We have reviewed the request and find that it does/does not comply with our Comprehensive Plan
❑ have reviewed the request and find no conflicts with our interests.
See attached letter.
•
Comments:
Signature c ne/A4_A_7 /04:44,d Date
Agency Aft 3 ;At P
•)weld County Planning Dept. 31555 N. 17th Ave.Greeley,CO.80631 +(970)353-6100 ext.3540 +(970)304-6498 fax
rs ce a DEPARTMENT OF BUILDING INSPECTION
r•-• Weld County Administrative Offices
1555 N. 17th Avenue, Greeley, CO 80631
WEBSITE: www.co.weld.co.us
Phone (970) 353-6100, Ext. 3540
111kFax (970) 304-6498
COLORADO
September 19, 2001
Fran Garcia
Change of Zone from A (Agricultural) to E (Estate) for a Five (5) Lot PUD
Z-564
1. Building permits shall be obtained prior to any construction. Building permits are not
required for buildings that qualify for and receive a Certificate of Compliance, but an electrical
permit will be required for all buildings if electrical service is provided to the building.
2. A plan review will be required for each building. Two complete sets of plans are required
r when applying for the permit.
3. Buildings shall conform to the requirements of the 1997 UBC, 1998 IMC, 1997 IPC, 1999
NEC and Chapter 29 of the Weld County Code.
4. Each building will require an engineered foundation based on a site-specific geotechnical
report or an open hole inspection performed by a Colorado registered engineer. Engineered
foundations shall be designed by a Colorado registered engineer.
Please contact me for any further information regarding this project.
Sincerely, D
4;a
Jiff Reif
Building Official
r
I r
Service,Teamwork,Integrity,Quality EXHIBIT
101.'"H‘n
Weld County Referral
September 10, 2001
COLORADO
The Weld County Department of Planning Services has received the following item for review:
Applicant Fran Garcia Case Number Z-564
Please Reply By October 1, 2001 Planner Robert Anderson
Project Change of Zone from A(Agricultural)to E (Estate)for a Five (5) Lot PUD.
Legal Lot A of RE-2509, being a part of the NE4 of Section 6, T4N, R68W of the 6th
P.M., Weld County, Colorado.
Location West of and adjacent to WCR 3 and south of and adjacent to State Hwy 60.
Parcel Number 1061 06 000072
The application is submitted to you for review and recommendation. Any comments or recommendation
you consider relevant to this request would be appreciated. Please reply by the above listed date so that
we may give full consideration to your recommendation. Any response not received before or on this date
may be deemed to be a positive response to the Department of Planning Services. If you have any further
questions regarding the application, please call the Planner associated with the request.
Weld County Planning Commission Hearing (if applicable) November 20, 2001
❑ We have reviewed the request and find that it does/does not comply with our Comprehensive Plan
Z$ We have reviewed the request and find no conflicts with our interests.
❑ See attached letter.
Comments:k.i fl . t'1 ak/lei t.) Cj, rat Crrnp i", mtc)1."k u'mf
Signature f � 1" ib1 Date
OCLo
,
Agency 7))(1,1\ 6, Ctlk �a ran e,
•weld County Planning Dept. 01555 N. 17th Ave.Greeley,CO. 60631 O(970)353-6100 ext.3540 O(970)304-6498 fax
EXHIBR
Weld County Planning Weld Count Referral
lift( i;----N.,,,
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1 M;Ar. 0 , 20W
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February 23, 2001
RECEIVED
COLORADO
The Weld County Department of Planning Services has received the following item for review:
Applicant Fran Garcia Case Number S-587
Please Reply By March 19, 2001 Planner Robert Anderson
Project Sketch Plan for five (5) residential lots and common open space on 29 acres
(Garcia PUD)
Legal Lot A Re-2509, Part of the NE4 of Section 6, Township 4 North, Range 68 West
of the 6th P.M., Weld County, Colorado.
Location West of and adjacent to WCR 3 and south of and adjacent to SH 60
Parcel Number 1061 06 000072 I
The application is submitted to you for review and recommendation. Any comments or recommendation
you consider relevant to this request would be appreciated. Please reply by the above listed date so that
we may give full consideration to your recommendation. Any response not received before or on this date
may be deemed to be a positive response to the Department of Planning Services. If you have any further
questions regarding the application, please call the Planner associated with the request.
Weld County Planning Department Design Review Meeting:
a We have reviewed the request and find that it does/does not comply with our Comprehensive Plan
U We have reviewed the request and find no conflicts with our interests.
X Sae attached .
Comments: /f7r.rtati -is- bea m',I /sad/ o h, ka+,. (Of r2+lt
(' �/e'/1 Gu 1 of if:*f ' iP 7 i1P s r )rtmiin e/ Ae fw 1'
a 1m/a/ll9 �/rr.ult/ is issc/e.. / /
Signature / - aa'nolo e. � Date .1//O/
- Agency. 1.4050,1 A s/ C: C 1�V/ y/S14i'c7
,. .
tWeld County Planning Dept. G1555 N. 17th.Ave.Greeley,CO.80631 :•(970)353-6100 ext.3540 +(970)304-6498 fax
EXHIBIT
(Its ]
468061 MRD2
Thompson School District R2-J Development Impact Report
Garcia PUD, dated 2/23/01 with 5 dwelling units, is located within the current attendance boundaries of Winona
Elementary School, Conrad Ball Middle School, and Mountain View High School. Construction is estimated to
start in 24 months and build at an annual rate of 3 dwelling units per year resulting in an expected growth in
enrollment of 2 elementary, 1 middle school and 1 high school students by 2004.
According to Master Plan 2000's five-year projection, the estimated student population from this development,
and others that have received final plat approval, may cause district enrollment to exceed service level C. Five
years is the longest projection time frame considered reliable.
Capacity Compared to Student Enrollment for Current Year (2000-01) and Five-Year Projections
District-wide Enrollment Local Area Enrollment
YM S{ ti F ti�F�. U
r O \\� :� Y
•
L • •
A Ya
Elem MS HS Elem MS HS WIN CBMS MVHS WIN CBMS MVHS
2000 Enrollment 2004 Enrollment 2000 Enrollment 2004 Enrollment
The standard level of service for the Thompson School District is Service Level C or better
c A(Below Capacity) ® C(Extended Utilization) U(Underutilized)
na B(Design Capacity) ® D(Over Capacity) O Student Enrollment
Comments:
• Winona Elementary is currently at service level A and is expected to remain at that level during the next five
years. Conrad Ball Middle School is currently at, and is expected to remain at, service level C for the next five
years. Opening in 2000, Mountain View High School is currently at service level U and is expected to move into
service level A during the next five years. These schools are expected to serve some of highest growth areas in
the district over the next five years.
• The District's citizen-based Master Plan Committee (MPC) monitors capacity levels at each of the district
schools and makes annual recommendations for responding to projected enrollment changes. In consideration of
the probable impact(s) of this development, the MPC may recommend using one or more of the tools described on
the back of this report. The selection and timing of the most appropriate tool(s) will be determined by the Board
of Education. These tools do not affect class size or services available to students. The student-to-teacher ratio
is based on per pupil funding, which is determined by the State of Colorado legislature.
• The size and location of this development indicate that the school district land dedication requirement should be
made in the form ofpayment-in-lieu-of land dedication prior to the issuance of a building permit at the rate
current at the time of building permit issuance. The District will provide a receipt for the payment that may be
presented with the request for a building permit.
• The current attendance areas will require bussing at all levels. Pickup will be along Hwy 60.
• We recommend street lighting at all bus pick-up points to assist wintertime safety.
468061 MRD2
Tools for Accommodating Changing Enrollment
Tool: Some Indications for Use Are:
• School Closure There has been long-term low enrollment;building in poor condition and is
uneconomical to repair
• Site-based space reallocation Determined by individual school priorities and programs
• Boundary adjustment Some schools are too full while others are below capacity
'Active'adjustment—affects many students; impacts existing neighborhoods
'Passive'adjustment—affects few or no students; mainly impacts future development
• Installation of portable classroom All classrooms on site are fully utilized.
• Bussing to another school Some schools are too full while others are below capacity.
• Modified daily schedule Determined by individual school.
• Off-campus classes in non-school locations The enrollment exceeds the capacity provided by other options and no
bonds for new construction have been passed.
• Multi-track year-round use All other options have been exhausted and no bonds for new construction
have been passed. •
• Construction of a new school or an addition Public passed bonds for new construction.
to an existing school
These tools do not affect class size or services available to students. The student-to-teacher ratio is based on per pupil funding,
which is determined by the State of Colorado legislature.
School Capacity Service Levels
Service Level A(Below capacity): 75-100% of design capacity
The building contains fewer students than it was designed somewhat higher than desirable. High schools may not be
for and it has 'room to grow'. Excess classrooms may be able to offer a full range of elective courses. This level is
utilized for specialized purposes(i.e. publishing centers)or typical of the period after new buildings have been opened.
to house district-wide special programs. Operating costs are
Service Level B(Design capacity): 100% of design capacity
The number of students and the intensity of room use match point from which all other service levels are measured and
exactly the building design parameters. This is a compared.
momentary condition and should be considered as the ideal
Service Level C(Extended utilization): 100-125% of design capacity*
The building contains more students than it was designed schools may need to modify schedules but are able to offer a
for and some areas intended for other purposes may be used wider variety of courses. The number of students in a class
as classrooms. Portable buildings may be utilized to house and the quality of educational experience are minimally
special programs or as additional classrooms. The cafeteria affected. Operation is very efficient(fixed costs per student
and playgrounds may be scheduled in shifts. Secondary are low). This level is typical of a growing district.
school halls may be crowded between periods. High
Service Level D(Over capacity): over 125%of design capacity*
No more portable buildings are feasible. Many spaces areas (cafeteria, media center, gyms) are overburdened.
intended for other purposes are being used as classrooms. Operation is generally efficient but maintenance needs rise
Some classes may be held in nontraditional locations, rapidly. Staff and students feel stress. General quality of
Building capacity is increased by scheduling more hours of the educational experience may decline. This level is
school (i.e. split sessions, more periods in a high school day, typical prior to passage of a bond issue or in districts that
night classes, multi-track year-round use). High schools are unable to pass bond issues.
may have more class offerings. Halls and other common
Service Level U(Underutilized): less than 75% of design capacity
Attendance is so low that fixed costs (utilities, support and grade classes or teachers in school only part of the time than
administrative staff, special teachers) are disproportionately other schools. This level is typical in shrinking districts or
high and must be subsidized, reducing funds available to attendance.
serve students in other schools. May have more combined-
.— *This range varies and is dependent on the configuration of the individual school site.
The standard level of service for the Thompson School District is Service Level C or better.
•
BERTHOUD FIRE PROTECTION DISTRICT
Box 570 • 275 Mountain Ave. • Berthoud, CO 80513 • (970) 532-2264
September 21, 2001
Weld County
Department of Planning Services
Robert Anderson, Planner
1555 N. 17th Ave. ` r' tst
Greeley, Colorado 80631 tw
RE: Case Number Z-564
Dear Mr. Anderson,
The Berthoud Fire Protection District has completed it's review of the five(5) lot PUD located
west of and adjacent to Weld County Road 3 and State Highway 60. In accordance with the
codes/regulations adopted by the District, the following is required:
1. Single family and two family residential developments shall have fire hydrants spaced so
that no dwelling shall be more than 300 feet from the hydrant as measured via the street.
Hydrants shall not be more than 600 feet apart,
Note: Building envelopes may be required to ensure that all dwellings are within 300 feet
of a fire hydrant.
2. Fire hydrants shall be within 15 feet of the curb or designated roadway, with no
obstructions within 3 feet.
3. The minimum fire flow for one and two family dwellings having a fire area which does not
exceed 3,600 square feet shall be 1,000 gallons of water per minute. Fire flow for
dwellings having a fire area in excess of 3,600 square feet shall not be less than that
specified in the Uniform Fire Code, 1997 Edition, Table A-III-A-I.
Fire Area Defined: The fire area shall be the total floor area of all floor levels within the
exterior walls, and under the horizontal projections of the roof of a building.
Exception: A reduction in required fire flow of 50%, as approved by the Fire Chief, is
allowed when the building is provided with an approved automatic fire sprinkler system.
4. The turning radius of a dead-end development access road shall be a minimum of 50 feet.
EXHIBIT
AN EQUAL OPPORTUNITY EMPLOYER •
Page 2
5. Development access roadways shall be designed and maintained to support the imposed
loads of fire apparatus and shall be provided with a surface so as to provide all weather
driving capabilities.
If you have any questions, please direct them to me at your earliest convenience.
Respectfully, f
Steve Charles, Fire Chief
CC Design Development Consultants
2627 Redwing Road, Suite 350
Fort Collins, Colorado 80526
r
SEP-15-2001 11 54 ALBERTS0N CLARK ASSOC 9702237144 P.O1
r
Weld County Referral
' • September 10, 2001
e
C LOR ADO
The Wel County Department of Planning Services has received the following item for review!
I
Applicant Fran Garcia Case Number Z-564
Please Reply By October 1, 2001 Planner Robert Anderson
Project Change of Zone from A (Agricultural)to E (Estate)for a Five (5) Lot PUD.
Legal Lot A of RE-2509, being a part of the NE4 of Section 6, T4N, R68W of the 6th
P.M., Weld County, Colorado.
Locatl4n West of and adjacent to WCR 3 and south of and adjacent to State Hwy 60.
-
• Parcel/slumber 1061 06 000072
The application is submitted to you for review and recommendation. Any comments or recommendation
you con ider relevant to this request would be appreciated. Please reply by the above listed date so that
we may give full consideration to your recommendation. Any response not received before or on this date
maybe eemed to be a positive response to the Department of Planning Services. If you have any further
questio s regarding the application, please call the Planner associated with the request.
Weld-County Planning Commission Hearing (if applicable) November 20,2001
❑ We have reviewed the request and find that it does/does not comply with our Comprehensive Plan
We Dave reviewed the request and find no conflicts with our interests.
Seei attached letter.
Comments:
Signature >4Z'ti�& %111�� Date '7 a.Gf/0/
Agency
t4
+Wels County Planning Dept. 4155 17th Ave. Greeley,CO.80631 0(970)353-8100 ext.3540 ')(970)304-6498 fax
SEP-15-2001 11 55 ALBERTSON CLARK ASSOC 9702237144 P.02
n
ALBERTSON CLARK ASSOCIATES
I I
Planning ♦ Historic Preservation ♦ Community Participation
Septem er 14, 2001
Robert derson
Weld C imty Planning
1555 N rth 17th Avenue
Greeley, CO 80631
RE_Gacia PUD
Robert:
The Town of Berthoud has received a county referral for the Garcia PUT. The proposed
development is located within the Town's Community Influence Area and is also identified on
the Town's Land Use Plan as a "cropland support area" and within the Separator Area. The
Town's Land Use Plan states that in the Community Influence Area, "properties should not be
upzoneql in the County, unless associated with clustering and effective conservation measures".
The intent of the cropland support area is to maintain the viability of cropland east of the Town.
The Separator Area is intended to create distinct boundaries between Berthoud and surrounding
co ties. Clustering of development and protecting view corridors are considered
approp late for the Separator Area.
The pr posed development is not clustered. Clustering would result in the lots being smaller and
large ' as left in open space. Septic systems could either be located in common open space or
on lotswith a minimum lot size of 1-0 acres, as required by Weld County. As currently planned,
the en t a site is divided into individual lots with the only open space being a buffer around the
lots. currently proposed, the Garcia PUD is not in conformance with the Town of Berthoud's
Land L se Plan and therefore, not supported by the Town.
If you have any questions, please feel free to contact me.
Sincere' aeal-64-7-
X�6.'"` ,-- Cie_,
Sheny Alber on-Clark,AICP
Interin}Town Planner,Town of Berthoud
II
5313 Fairway Six Drive, Fort Collins, CO 80525• (970) 223-5390 FAX(970) 223-7144
f TOTAL P.02
r^‘ r1
STATE OF COLORADO
r OFFICE OF THE STATE ENGINEER av cot
Division of Water Resources .4,10A\\o,6.
Department of Natural Resources a P#71;
131 Sherman Street,0 Room 818 *«>
Denver,Colorado 80203 a t876`
Phone(303)866-3581
FAX(303)866-3589 September 14, 2001
Bill Owens
www.watecstate.co.us Governor
We/0,0Greg E.Watcher
Mr. Robert Anderson Exec twe Director
Weld County Planning Dept. 0Lntp Hal Engineer
n,PE
y .
1555 N. 17th Ave. pi
pt
Greeley, CO 80631
Re: Garcia PUD, Case Number Z-564E 8 2''�7
Water Division 1, Water District t M
4 ® V to
Dear Mr. Anderson:
We have reviewed the above referenced proposal to subdivide a 29.02-acre
parcel into 5 single-family residential lots. The proposed water supply is from the Little
Thompson Water District, but a letter of obligation was not submitted with the referral
materials. A water supply information summary sheet was also not included.
Pursuant to Section 30-28-136(1)(h)(II), the State Engineer's Office offers the
opinion, that contingent upon receiving a letter of obligation by the Little Thompson
Water District, the proposed water supply will not cause material injury to existing water
rights, and with the District serving the proposal, the supply is expected to be adequate.
If you have any questions in this matter, please contact Bill McIntyre of this office.
Sincerely,
Kenneth W. Knox
Assistant State Engineer
Cc: Richard Stenzel, Division Engineer
Water Supply Branch
District file
File
KW K/W CM:GarciaPUD.doc
UMW
I' "
�^ , N,
STATE OF COLORADO
COLORADO GEOLOGICAL SURVEY i{te.
Division of Minerals and Geology J.t,J ('C yr�s.j I .L- 1 J '^
Department of Natural Resources
1313 Sherman Street,Room 715
Denver,Colorado 80203
Phone:(303)866-2611
FAX:(303)866-2461 ^ - DEPARTMENT OF
d " `:, ° NATURAL
w d "' f RESOURCES
September 22, 2001 Bill Owens
Governor
Greg E.Walcher
Executive Director
Michael B.Long
Mr. Robert Anderson Division Director
Weld County Planning Vicki Cowart
Stat1555 N. 17th Ave. and eDirector
Geologist
Greeley, CO 80631
Re: Garcia PUD, change of zone
CGS Review No. WE-01-0058
Dear Mr. Anderson:
CGS reviewed this property in the spring (letter dated March 22). The plat has changed,
reducing the four smaller lots from 4+ acres to 2+ acres,but the comments made in our
initial letter remain valid. ISDS may need to be engineered, but the smaller lot sizes
should accommodate this possibility. Therefore, we have no objection to the change in
zone. Please call me if there are any questions.
Yours truly,
c„ O
Celia Green
Geologist
EXHIBIT
/,
•
STATE OF COLORADO
COLORADO GEOLOGICAL SURVEY
Division of Minerals and Geology Pin
Department of Natural Resources
1313 Sherman Street, Room 715
Denver,Colorado 80203
Phone:(303)866-2611 March 22, 2001
FAX:(303)866-2461 DEPARTMENT OF
NATURAL
RESOURCES
Mr. Robert Anderson X Bill Owens
Weld County Department of Planning S J:23 o t 3 Governor
1555 N. 17th Ave. Greg E.warner
Executive Director
Greeley, CO 80631 Michael B.Long
Division Director
Re: Garcia P.U.D. Vicki Cowart
State Geologist
CGS Review No. WE-01-0058 and Director
Dear Mr. Anderson,
In response to your request and in accordance with Senate Bill 35 (1974), I
visited this site on March 14th to review the geologic feasibility of the proposed
subdivision. Included in the review was a Preliminary Geotechnical and
Percolation Investigation Report (January 2001) and a Geologic Evaluation
Report (November 2000) both prepared by Scott, Cox, & Associates. The
following comments are based on site reconnaissance and literature review.
• The Larimer County Soil Survey has classified these soils as Nunn clay
loarns. This is a deep and well-drained soil with moderate to high shrink
swell, low strength, and moderately slow permeability. These characteristics
can pose problems for urban development. The soils are underlain by the
Cretaceous Pierre Shale, an interbedded sandstone and shale, which is also
known for highly variable shrink-swell potential. Site specific subsurface
investigations will need to be performed and swell consolidation tests
evaluated to determine whether any special engineering will be needed for
foundations and basements. This might include the use of drilled piers, or
overexcavation of the expansive materials and replacement with structural fill.
Increasing the water content of these soils and/or bedrock could result in
damage to the structures from swelling or consolidation. I suggest that
perimeter drains be installed to route water away from foundations and
foundation walls. Positive drainage should be maintained throughout the life
of the structures to lessen or eliminate structural damage.
Should swelling soils be present at any of the proposed lots, the homebuyers
should be given SP 43, A guide to Swelling Soils for Colorado Homebuvers
and Homeowners. This publication educates homeowners about swelling
soils and mitigative maintenance to protect their homes from any potential
future damage.
• Percolation tests performed by SC&A established rates of 29 to 240 minutes
per inch. Weld County guidelines require 5 to 60 minutes per inch for
conventional septic systems. Only lots 1 and 2 fall within these parameters.
Swelling soils pose additional problems, as pore spaces will close up. SC&A
recommended evapotranspiration/absorption systems for those sites with less
than the required county standards. The developers might also consider the
removal of native soil and replacement with a more sandy soil. Site specific
subsurface investigations should provide the information needed to determine
the most feasible mitigation.
In summary, there appear to be no geology-related problems associated with the
development of the proposed subdivision that cannot be reasonably addressed
with appropriate design. Please call if there are any questions.
Sincerely,
Allison Apeland
Geologist
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