HomeMy WebLinkAbout20231877.tiff'rt
TETRA TECH
April 2, 2024
Brock Bowles
Division of Reclamation, Mining and Safety
1313 Sherman Street, Room 215
Denver, Co 80203
RECEIVED
APR 032024
WELD COUNTY
COMMISSIONERS
RE: Transmittal of Adequacy Review #1 Response Pages for Holcim-WCR, Inc., Wattenberg Lakes
Mine, File No. M-2004-051, 112c Permit Amendment Application
Dear Mr. Bowles:
This letter is provided as a transmittal for the revised exhibit pages prepared in response to the DRMS
Adequacy Review #1 letter, dated August 8, 2023, regarding Holcim's 112c Permit Application for the
Wattenberg Lakes Mine (File No. M-2004-051). Comments from Colorado Parks and Wildlife (CPW), the Division
of Water Resources (DWR), the City of Aurora, and Mr. Carl Eiberger were also provided at that time and the
applicable topics raised in these letters were also addressed in the revised exhibit pages.
As you directed in your Adequacy Review #1 letter, we are responding to the comments via the preferred
method that involves incorporating our responses into the text of the appropriate exhibit. This transmittal
provides the updated permit pages to DRMS for review. All revised exhibit pages are also being provided to
the Weld County Clerk and Recorder.
Thank you for your consideration. If you have any questions or need additional information, please let me
know,
Sincerely,
TETRA TECH
7tate aaveco,
Fred Charles, Ph.D., P.E.
Senior Engineering Manager
cc: Wyatt Webster, Holcim-WCR, Inc.
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Wattenberg Lakes Amendment, Exhibit C -- Pre -Mining and Mining Plan Map(s) of Affected Lands
March 2024
EXHIBIT C - PRE -MINING AND MINING PLAN MAP(S) OF AFFECTED
LANDS
The Adequacy #1 Response replacement pages for the Pre -mining and Mining Plan Map(s) of Affected Lands
(Exhibit C) are attached.
0
TETRA TECH
Page 1 l 1
3/22/2024 3:17:32 PM - O:IPROJECTSIIONGMONT17110\117-7110001\CAD1SHEETFILESIWATTENBERG RECLAMATION\EX-C PRE -MINING PLAN MAP.DING - HART, GRACE
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POND 1 1
(STRUCK POND)
EXISTING CONVEYOR TO
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EARTHWORK IN THIS AREA
AREA 2 TO BE MINED
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IN POND T AREA,
LIMIT OF MINING TO
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FROM PERMIT
BOUNDARY AND
EDGE OF ROAD
SLURRY WALL
i TO BE INSTALLED AS PART ',
OF RECLAMATION PLAN
PRtOR TO CONSTRUCTING
SLURRY WALL, PLACE FILL ON
SOUTH SIDE OF POND 1 TO CREATE 50 -FT OFFSET
FROM TOP OF POND SLOPE TO EDGE OF COUNTY ROAD
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SLOPE PROTECTION
RASED ON THIS PROPERTY OWNED BY OLCIM
UNDER SPECIAL WARRANTY DEED, THIS ACCESS
WILL BE USED AS NEEDED AND IN ACCOFDANCE
WITH EXISTING AGREEMENTS
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AREA TO BE MINED= 6 2 ACRES
TOTAL PERMIT AREA (AFFECTED AREA) = 420.8 ACRES
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CERTIFICATION:
LEGEND
1///A
WELL LOCATION APPROXIMATE
PERMIT BOUNDARY APPROXIMATE
EXISTING WETLANDS
SCALE I° 307
THIS MAP WAS PREPARED BY TETRA TECH IN COOPERATION WITH HOLCIM - WCR, INC
HOLCIM - %NCR, INC WILL KEEP THE DIVISION OF RECLAMATION, MINING, AND SAFETY
INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH
ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS
AS NECESSARY THROUGHOUT THE LIFE OF THE MINE
tai
3/22/2024
FREDERICK LEE CHARLES, PE
DATE
— www tetratech corn
Coffman Street, Suite 200
Longmont, Colorado 80501
Phone; (720) 864-4507
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INCOMPLETENESS RESPONSE
REVISION AND ADEQUACY RESPONSE]
HOLCIM - WCR, INC.
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THIS DRAWING WAS PREPARED BASED ON AVAILABLE TITLE COMMITMENT,
Comm', AND SITE INFORMATION FOR THE PURPOSES OF IDENTIFYING
STRUCTURES WITHIN THE PERMIT AREA AND WITHIN A 200 -FOOT BUFFER
OUTSIDE THE PERMIT AREA ANY WORK IN THE AREA SHALL REQUIRE
SITE -SPECIFIC IDENTIFICATION AND MARKING OF UTILITIES IMMEDIATELY
PRIOR TO THE WORK TETRA TECH IS NOT RESPONSIBLE FOR THE
ACCURACY, NOR FOR ERRORS OR OMISSIONS, RELATED TO THE LOCATION
AND DETAILS OF ANY UNDERGROUND UTILITIES OR OTHER STRUCTURES
THIS MAP WAS PREPARED BY TETRA TECH IN COOPERATION WITH HOLCIM - WCR, INC
HOLCIM - WCR, INC WILL KEEP THE DIVISION OF RECLAMATION, MINING, AND SAFETY
INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH
ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS
AS NECESSARY THROUGHOUT THE LIFE OF THE MINE
Btu Mnntues 1 inch, otherwise drawing not to scale
Copyright Totra Tech
4/2/2024 12:08:14 PM - O:\PROJECTSILONGMONT171101117-7110001\CAD\SHEETFILES\WATTENBERG RECLAMATIONIEXISTING CONDITIONS DWG - HART. GRACE
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OWNER
YOSHI AND SUZU LLLT>
REC. NO. R8056993
OWNER.
TINA. M LYNCH
REC. NO, M0392495
OWNER
HECTOR ALFONSO
FAUCOA
REC NO. R8956992
OWNER
G.ARFI O NOEL
REC. NO. 86009388
OMER'
YOSHiI AND SUZU LISP
REC. NO, 88089986
OWNER
TIA I STRUCK
REC NO. R8503100
OWNER:
ASPHALT PAVING CO
REC. NO, RS059586
OWNER
RON L GARTRE LL
REC NO R8060285
+WNER
JAMES P 8 0O9.O1 I fl S :RUCK
REC. NO. 88505100
OWNER
CITY OF WESTMINSTER
REC. NO, R0223788
OWNER:
CONS OLI DATED MUTUAL
WATER COMPANY
REC,NO. 87206198
OWNER:
CONSOLIDATED MUTUAL
WATER COMPANY
REC NO R7200098
OWNER
NOLAN T HUSSEY
REC. NO. 86060188
OWNER
TOBY I. STRUCK
REC. NO R8508300
OWNER
CONSOLIDATED
MUTUAL WATER
COMPANY
REC. NO R14 I6502
CTTI4RHER:
CITY OF
WESTMINSTER.
REC. NO. R8703935
0 313 35
OVINE Ft
JAMIE MENAFRANCIA
REC N{O. RG026788
OWNER:
HALL - IRVWN
AGGREGATE LLD
REC NO, ROo2A8®8
OWNER
CONSOLIDATED MUTUAL
WATER COMPANY
REC NO. 11806011/8
OWNER:
CITY OF WESTMINSTER
REC, NO, R096T909
OV4'fER.
AGGREGATE
INDUSTRIES WCR INC
REC NO 87293397
5
OWNER:
CONSOLIDATED MUTUAL
WATER COMPANY
REC. NO, R627398t1
OWNER
CITY OF VQESTM1NSTER
REC. NO R6274186
OMER'.
ER'.
HOLCIM,WCR•INC
REC. NO. 88941087
OVER
CITY OF WESTMINSTER
REC; NO. R8'98790E
OWNER.
AGGREGATE
INDUSTRIES WCR INC
REC. NO. R72938897
OWNER
CITY OF AURORA
REC NO RB275365
OWNER:
CAMAS COLORADO INC
(7999%INT) &
DENVER AGGREGATES INC
(20 01% INT)
REC NO R0013389
OWNER:
CAMAS COLORADO INC
(79.99% INT) 8
DENVER AGGREGATES INC
(2001% INT)
REC NO. R0013489
LEGEND
SCALE: 1" = 300'
PERMIT BOUNDARY APPROXIMATE
200' BUFFER
NOTE:
1. HIGH -RESOLUTION AERIAL IMAGERY ACQUIRED BY HOLCIM - WCR, INC
ON 4/11/2023.
2 PARCEL OWNER INFORMATION OBTAINED FROM WELD COUNTY
PROPERTY PORTAL
CERTIFICATION:
THIS MAP WAS PREPARED BY TETRA TECH IN COOPERATION WITH HOLCIM - WCR, INC
HOLCIM - WCR, INC WILL KEEP THE DIVISION OF RECLAMATION, MINING, AND SAFETY
INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH
ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS
AS NECESSARY THROUGHOUT THE LIFE OF THE MINE
3/22/2024
FREDERICK LEE CHARLES, PE DATE
351 Coffman Street, Suite 200
Longmont, Colorado 80501
Phone: (720) 864-4507
RA
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MARK,' DATE DESCRIPTION I BY
FLC
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INCOMPLETENESS RESPONSE
REVISION AND ADEQUACY RESPONSE
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Wattenberg Lakes Amendment, Exhibit D - Mining Plan
March 2024
EXHIBIT D - MINING PLAN
1.0 GENERAL
The Wattenberg Lakes Mine property is located within unincorporated Weld County on land owned by the City of
Westminster and Holcim The geographic coordinates of the main entrance area are 40° 00' 40.82" North, 104°
50' 21.43" West Sand and gravel will be the primary product produced from a small portion of the Wattenberg
Lakes site. The principal intended use for the sand and gravel is for construction aggregates
Agricultural and mining uses surround the property, with residential uses extending farther from the site including
the community of Wattenberg north of the property. Some of the Baurer Pit permit (M-2020-058) area overlaps
existing Pond 1 within the Wattenberg Lakes permit area; an acreage reduction will be requested for the Baurer
Permit after the Wattenberg Lakes amendment is approved. The majority of the site is immediately west of the
South Platte River between Weld County Road (WCR) 2 and WCR 6. Although a small northeastern section of
the property straddles the South Platte River, the mining operation will not disturb the river. Mining was completed
previously for most of the property, with only a small amount of additional mining planned (6.2 acres) to create the
area required to complete Pond 1 (also known as the Struck Pond).
The primary changes in the current DRMS permit amendment mining plan compared with the 2004 DRMS permit
mining plan include the following (changes to the reclamation plan are noted in Exhibit E):
• Mining has been completed in most of the permit area, with only a minimal amount of mining planned in
two small areas in the Pond 1 (Struck Pond) area; Area 1 (see Exhibit C) was not previously included in
the 2004 mining plan.
• The Huett Seep/Ditch was re-routed immediately east of Pond 3 as part of the activities permitted in
2004.
• A decreased area of mining occurred in the west boundary area of Pond 3, resulting in a straightened
western pond boundary and a decrease in the disturbance during mining compared with the 2004 permit.
The total DRMS permit amendment area covers 420.8 acres. The permit boundary and affected area are the
same for this amendment. Within the site, 6.2 acres of the land will be mined as shown for Area 1 (3.2 acres) and
Area 2 (3.0 acres) in Exhibit C, Map C-1; the remaining areas will be used for temporary earthwork and other
material movement (minor grading) as part of reclamation activities. Area 1 and Area 2 are planned for mining
concurrently.
In June and August 2022, a survey was conducted within the permit area for wetlands and other waters of the
U.S.; the delineation report is included in the vegetation exhibit (Attachment J-1) and wetlands are shown in
Exhibit C, Map C-1. Holcim is working with the U.S. Army Corps of Engineers (USAGE) to amend an existing
permit to cover the wetland mitigation required to satisfy USACE 404 requirements. Please see Exhibit J for
vegetation information. The proposed plan does not include mining in areas with existing wetlands.
The saleable aggregate material to be removed from Area 1 and Area 2 will amount to approximately 158,000
cubic yards (221,000 tons at 1.4 ton/cy), based on exploratory logs from the previous investigation for adjacent
Pond 3. The overburden and growth medium materials excavated as part of the mining operation, along with
overburden previously placed in the west half of Pond 1 (Struck Pond), will total approximately 900,000 cubic
yards. Overburden and growth medium will be stockpiled for use as backfill and reclamation within the permit
area; excess overburden will be hauled off site for other uses.
Based on routine groundwater elevation monitoring in the Wattenberg Lakes site, Area 1 and Area 2 groundwater
is typically expected at approximately 2 ft below ground surface but can be less than 1 ft during seasonal highs.
Additional information on groundwater at the site is presented in Exhibit G (Water Information).
TETRA TECH
Page 114
Wattenberg Lakes Amendment, Exhibit D — Mining Plan March 2024
2.0 PHASING AND METHODS OF MINING
2.1 Phasing
Holcim anticipates conducting operations under this DRMS permit amendment in three phases for a total duration
of 18 months, with mining of Area 1 and Area 2 planned for only 2 months of that duration and the other activities
as part of reclamation (discussed in Exhibit E). The three phases are:
1. Phase 1 — Concurrent activities (10 months)
a. Grade/fill to achieve side slopes of 3H:1V (horizontal:vertical)
b. Build up south edge of existing Pond 1 on south side to create 50 -ft buffer from top of pond slope
to edge of county road
c. Mine areas 1 and 2 with post -mining pond depth of 42 ft
d. Place fill in other parts of the site to achieve reclamation grades
2. Phase 2 — Construct slurry wall and perimeter drain (2 months)
3 Phase 3 — General earthwork on western side of footprint (excess fill to be used for backfill as needed in
other parts of the site) (6 months)
In Phase 1, prior to or while initiating mining in Area 1 and Area 2, the Pond 1 side slopes will be graded to the
base of the pond at a 3H:1V slope. Also, excess fill from the western portion of the Pond 1 footprint area will be
used to build up the southern perimeter of Pond 1 to create a 50 -ft offset from the edge of county road to the top
of the pond embankment. Area 1 and Area 2 will be mined and excess fill (placed previously in the western part of
the footprint) removed and placed in the cottonwood replacement area or other areas where fill is required to
achieve the reclamation grades. Also, in areas outside Area 1 and Area 2, minor earthmoving and grading will
take place to establish reclamation grades for wetland establishment, cottonwood replacement, and other
reclaimed uses as presented in Exhibits E and F.
In Phase 2, the slurry wall and perimeter drain will be constructed around the perimeter of the final footprint of
Pond 1. Design specifications for the slurry walls and quality control procedures used during construction will
ensure that the reservoirs meet State Engineer's Office (SEO) performance standards. Specific specifications and
quality control procedures will be provided to the Division for review prior to construction of the slurry walls.
After construction of these reclamation features, Phase 3 general earthwork will take place on the western side of
the Pond 1 area and excess fill not used in this area will be used to achieve reclamation grades in other parts of
the site.
2.2 Equipment
The aggregate material will be recovered using equipment and facilities typical for sand and gravel mining
operations. The equipment and facilities may include, but not be limited to, a conveyor system from the mining
area to the Holcim s Platte Valley Plant; additional, portable, temporary processing equipment on an as needed
basis for screening, crushing, and washing; earth -moving equipment including dozers, loaders, scrapers,
excavators, dragline, dredge, compactors, and field conveyors; and an employee/storage trailer and
fueling/lubricating station. Dewatering pumps and generators and watering trucks will be also used as needed.
2.3 Mining Process
The typical mining process for Area 1 and Area 2 will involve stripping growth medium and overburden with
scrapers, to expose the aggregate product below, and stockpiling these materials in the temporary stockpile areas
identified in Exhibit C. Mining of the aggregate will progress down to the underlying claystone bedrock. The
bedrock material is rippable and, when necessary, will be excavated and used for reclamation.
Overburden found on the site will be used to fill in the reclamation slopes and for minor grading and fill needed in
other areas as part of reclamation. Overburden and growth medium reserved for reclamation will be vegetated
TETRA TECH
Page 214
Wattenberg Lakes Amendment, Exhibit D — Mining Plan March 2024
and stabilized in accordance with Rule 3.1.9(1). All soil and overburden material will be used for reclamation, so
long-term stockpiling of these materials is not anticipated. The mining areas will be reclaimed using soil,
overburden, process fines, and other inert materials from on -site. If materials from off -site are used, Holcim will
provide the Division with the appropriate notices and affidavit in accordance with Rule 3.1.5(9).
During mining and prior to reclamation, the mine walls will be nearly vertical at a 0.5H:1V slope. The aggregate
material will be temporarily stockpiled or placed directly onto a conveyor system for transport. The conveyor
system will transport the material to be processed at an existing DRMS permitted mining site (Permit Number M-
89-120) immediately east of the property (Holcim's Platte Valley Plant). The conveyor will cross the South Platte
River within the permit boundary before entering the adjacent mining site as illustrated on the Pre-Mining/Mining
Plan Map (Exhibit C). Alternatively, if needed, a limited amount of material may be processed on -site with portable
and temporary screening, crushing, and/or washing equipment.
Once backfilling and grading has been completed in an area, the top of the slope and the side slopes above the
anticipated reservoir water level will be seeded as soon as practicable (in first available seeding season).
Prior to and during removal of the materials in Area 1 and Area 2, a dewatering system will be operated using the
current pump system that is on site. If additional capacity is needed, the pump system will be upgraded.
Dewatering trenches will be excavated around the perimeter of each pond and pumps will be used to remove the
water that drains from the deposit and surrounding alluvium into the trench. The water removed during dewatering
will be used for dust control at the site or piped to the nearby unlined Stillwater Ski Lake (owned by Holcim) or to
permitted outfall 8 at the South Platte River. Stormwater that falls within the mine areas will drain internally and
will also be removed through dewatering operations. There will not be uncontrolled releases of surface water and
sediment from mining areas.
Water associated with the site will be used for dust control operations during use of the roads and for stockpiles
and berms. The water used to limit dust emissions will be applied using a water truck with capacity of 2,500 or
4,000 gallons. As noted above, water for dust control will come from the dewatering process.
No explosives will be used to mine the site.
3.0 STOCKPILES
Growth medium and overburden in the Area 1 and Area 2 mining area will be stripped with scrapers or a dozer
and placed separately in temporary stockpiles to the north and west of the mining area. The growth medium will
be segregated and stored separately (see Exhibit C-1 map) to the north of Pond 1 and the overburden material
will be temporarily stored to the north and west of the mining area, as required by Rule 3.1.9(1). The stockpiles
will have an average height of 8 feet tall; they will have maximum 3H:1V side slopes. The overburden stockpiles
will be used for backfilling and reclamation where needed on the site. No excess overburden is anticipated for this
site
The growth medium stockpile will be protected from wind and water erosion by vegetative cover (see the Seed
Mix for Upland Areas found in Exhibit E). Also, overburden stockpiles reserved for reclamation will be vegetated
and stabilized in accordance with Rule 3.1.9(1). The stockpiles will be broadcast seeded and incorporated into the
weed control program. Weed control consists of chemical treatments as needed in the applicable fall and spring
seasons.
4.0 COMMODITIES TO BE MINED
The primary commodity to be mined will be aggregate. Holcim will supply local, county, and state governments,
as well as private industry with aggregate from this facility.
5.0 OFFSETS
The mining area will be subject to setbacks to prevent disturbance of road and utility rights -of -way and
undisturbed wetland areas. Holcim will maintain a 200 -foot minimum setback from the South Platte River. In the
TETRA TECH
Page 3I4
Wattenberg Lakes Amendment, Exhibit D — Mining Plan March 2024
Pond 1 area, the limit of mining will be at least 40 feet from the proposed permit boundary or edge of county roads
(see the Pre-Mining/Mining Plan Map, Exhibit C). In all other areas, a minimum 25 -foot setback will be maintained
from the permit boundary. Setbacks from man-made structures not owned by Holcim or the City of Westminster
will he established at twice the pit depth unless an agreement is obtained from the property owner or engineering
slope stability analyses performed.
Items owned by Holcim or the City of Westminster located within the proposed permit boundary, such as roads,
fences, water wells and associated pumps, and structures including a house and outbuildings, may be removed
or relocated during the mining process. There are additional structures on the site not owned by Holcim or the
City of Westminster (see the Pre-Mining/Mining Plan Map, Exhibit C). The structures in the overall site include oil
and gas wells and associated facilities and power transmission lines. Mining and reclamation activities will avoid
these structures (see Exhibit S, Permanent Man -Made Structures within 200 Feet of the Affected Land).
Prior to mining under the 2004 permit, there were oil and gas wells and flowlines in parts of the site, but none of
these remain in the small areas to be mined and where grading for reclamation is planned Previously, a well
located within the Pond 1 footprint (within mining Area 1) was plugged and abandoned, thus allowing the full area
of Pond 1 to be constructed for water storage.
6.0 ROADS AND CONVEYORS
Preparation for mining will include constructing 15 -ft -wide gravel access roads as needed. Most of these gravel
roads are included in the permitted acreage and will be removed and reclaimed after mining. However, a new
gravel access road will be constructed in the north end of the site by the current landowner, independent of
mining, to allow permanent access from WCR 4 1/2 to the western side of Pond 3 (see Map C-1).
All the aggregate material will be transported via conveyor from the mining area to Holcim's Platte Valley Plant to
the east for processing. The conveyor is set on concrete blocks or frames. The main conveyor line comes from
the south and currently crosses the Pond 1 area (will be relocated to go around the west side of Pond 1 area),
then continues along the north side of Pond 1 following its current alignment to the east side of the permit area.
The conveyor will continue to be operated for future permitted mining in areas to the south of the Wattenberg
permit area.
A 10.5 -ft wide existing road that currently connects to WCR 2 % will be utilized to provide street access to this
site. The location of this existing road is shown on Exhibit C, Pre -Mining Plan.
IN TETRA TECH
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VVattenberg Lakes Amendment, Exhibit E — Reclamation Plan
March 2024
EXHIBIT E - RECLAMATION PLAN
1.0 GENERAL
Area 1 and Area 2 will be mined and reclaimed as part of the development of Pond 1 (Struck Pond) that the
landowner, the City of Westminster, will own and use for water storage. Pond 3, previously reclaimed through
construction of the slurry wall, will also be used by the City of Westminster for water storage; please see
Technical Revision (TR) 1 for slurry wall technical specifications and construction completion report (12/18/2014),
approved by DMRS (1/8/2015), Other un-reclaimed but previously mined areas within the permit boundary will
also be reclaimed through backfilling, as needed, and minor grading, and establishment of plantings and ground
covers to restore and enhance all areas disturbed by current or previous mining activities.
The primary changes in the current DRMS permit amendment reclamation plan compared with the 2004 DRMS
permit reclamation plan include the following (changes to the mining plan are noted in Exhibit D):
• Pond 1, now called the Struck Pond, has an expanded footprint to the west of the originally planned pond
in the area previously identified for wetland mitigation area and slightly north as well; this adjustment to
the north results in an addition to the affected area covered under the 2004 permit, thus requiring this
amendment.
• Pond 2, identified in 2004 in the west-northwest part of the permit area, now is planned for wetland
mitigation with part of the area to remain dedicated for access to two remaining producing oil wells.
• The Pond 3 boundary along the west side was straightened during mining and a slurry wall was
constructed around the revised pond perimeter.
• Some of the previously identified wetland mitigation areas are changed in location to accommodate
revised plans for future use of the site.
• The wetland planting list is updated based on recent information including a wetland survey.
Key considerations for preparing this reclamation plan include the following:
• All wetlands on the site were located and delineated in June and August 2022. Existing wetlands will be
avoided to the extent feasible during mining, earthmoving, and reclamation activities. Also, wetlands will
be created in the identified wetland mitigation areas.
• Maintenance activities on the site will also include a comprehensive Weed Management Plan to limit the
spread of invasive species into the riparian areas and wetlands.
• The Pond 1 (Struck Pond) reservoir will be isolated from the surrounding alluvial aquifer by constructing a
slurry wall; a perimeter drain will also be constructed to minimize impacts of the slurry wall on
groundwater flow through this area.
Multiple groundwater monitoring wells are located within the permit area and will continue to be
monitored before, during, and after the mining and reclamation are completed. The wells will be used to
monitor effects from mining and provide information for mitigation of potential impacts on groundwater
levels and riparian vegetation, as necessary. See Exhibit G for more information.
2.0 RECLAMATION OVERVIEW
As discussed in the Mining Plan (Exhibit D) Holcim anticipates conducting operations under this DRMS permit
amendment in three phases for a total duration of 18 months, with mining of Area 1 and Area 2 planned for only 2
months of that duration (in Phase 1 only). The reclamation activities in these three phases will occur concurrently
(for Phase 1) or within nine months after completion of Phase 1 (for Phases 2 and 3). Reclamation will focus on
constructing the pond liner/slurry wall and also general backfilling and earthwork leading up to planting and
seeding to establish vegetation in the disturbed areas. Reclamation, including regrading and seeding, will be
completed within 2 to 5 years following initiation of these remaining reclamation activities. The three phases are:
1. Phase 1 — Concurrent activities (10 months)
a. Grade/fill to achieve side slopes of 3:1
it
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Wattenberg Lakes Amendment, Exhibit E — Reclamation Plan March 2024
b. Build up south edge of existing Pond 1 on south side to create 50 -ft buffer from top of pond slope
to the edge of county road
c. Mine areas 1 and 2 with post -mining pond depth of 42 ft
d Plane fill in other parts of the site to achieve reclamation grades
2. Phase 2 — Construct slurry wall and perimeter drain (2 months)
3. Phase 3 — General earthwork on western side of footprint (excess fill to be used for backfill as needed in
other parts of the site) (6 months)
Each area will be reclaimed using soil, overburden, process fines, and other inert materials from on -site.
However, if materials from off -site are used, the applicant will provide the Division with the appropriate notices
and affidavit in accordance with Rule 3.1.5(9). There will not be known toxic or hazardous materials in the backfill
material_ Additionally, no acid-forming or toxic materials will be used during mining and it is unlikely they will be
encountered in the mining. The mining will not leave high walls on the property. There will be no auger holes,
adits, or shafts left on the property.
Reclamation quantities and costs are summarized in Exhibit L.
3.0 POST -MINING LAND USE
The post -mining land use, as proposed in this Reclamation Plan consists of water storage ponds surrounded by
wetland and upland vegetation. In this area of Weld County, mining and developed water storage are
predominant land uses along the South Platte River. Therefore, the proposed post -mining land use is compatible
with surrounding land uses. The area within the proposed permit boundary will consist of two reservoirs, reservoir
shorelines, backfilled wetland/riparian mitigation areas, permanent access and county roads, and other reclaimed
or otherwise undisturbed land. The following areas will comprise the final land use:
Reclamation
and
Post -Mining
Land
Use Areas
Area
(acres)
Reservoirs
— Ponds
1
and
3
176.3
Wetland
mitigation
total
area
36.7
Cottonwood
replacement
total
area
10.0
Access
roads (reclaimed)
1.1
Misc.
upland
disturbed
areas (reclaimed)
10.0
Areas
reclaimed,
that
are undisturbed,
or access
and
county
previously
roads
disturbed
(permanent)
and
186.7
TOTAL
420.8
Some roads inside the proposed permit boundary will not be reclaimed but will remain for accessing and
maintaining the reservoirs, wetland mitigation areas, and oil wells. The existing vehicle access road over the
southern end of the Huett Seep/Ditch will remain. Unimproved roads around all reservoirs will also remain.
Conveyor systems and bridges will be removed under reclamation planned for Tucson South and are not covered
under the Wattenberg reclamation activities. Roads within the Wattenberg permit area that are not necessary for
future access and other disturbed areas in the permit area will be reclaimed with vegetative cover to stabilize the
soil and minimize erosion.
4.0 RECLAMATION MEASURES - MATERIAL HANDLING
Site reclamation measures are illustrated in Exhibit F. Reclamation of the site will include development of two
water storage reservoirs (total of 176 3 acres), wetland and cottonwood vegetation (total of 46.7 acres), and
upland vegetation will be established on access roads to be reclaimed and miscellaneous disturbed areas (total of
11.1 acres). Areas not mined nor disturbed by other site operations (outside of the 2004 permit and planned
activities) will not be subject to reclamation under this plan; these areas cover a total of 186.7 acres.
[ml TETRA TECH
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Wattenberg Lakes Amendment, Exhibit E — Reclamation Plan March 2024
The mining and backfilling operations will create the rough topography for the Pond 1 reservoir shoreline. The
backfilling will be done to provide stabilized shorelines around the reservoir and to minimize erosion. As shown in
Exhibit F (Map F-1), backfilling of two existing unnamed ponded areas (from previous mining) will take place for
final reclamation use for wetlands or cottonwood replacement; these areas are in the northwest and southeast
corners of the permit area. Minor grading to reclamation grades will take place in all areas subject to reclamation.
The backfill material will consist of native bedrock claystone and overburden and will be obtained from mining of
Area 1 and Area 2 as well as fill material from previous mining that, for example, remains in the area immediately
west of the mining area. Scrapers will be used to place the backfilled material. For Pond 1, using scrapers to layer
the lifts at a maximum 3:1 slope ensures a stable configuration.
Growth medium will be spread to a depth of approximately 6 inches over the surface of all areas to be
revegetated as uplands or wetlands.
5.0 WATER STORAGE RESERVOIRS
As noted above, the reclamation includes construction of the slurry wall and perimeter drain around the perimeter
of the final footprint of Pond 1. Design specifications for the slurry walls and quality control procedures used
during construction will ensure that the reservoirs meet State Engineer's Office (SEO) performance standards.
Specific specifications and quality control procedures will be provided to the Division for review prior to
construction of the slurry walls.
The bottom of Pond 1 will coincide with the existing, relatively impermeable claystone bedrock. The slurry wall will
also separate the pond from the surrounding alluvial aquifer. The slurry wall will be keyed into the bedrock
material and extend upward through the entire length of the saturated alluvium.
All reservoir slopes left by the mining operation will be reclaimed to at least 3H:1V :1 V final grade; slopes above the
post -mine high water level will be 3:1 and slopes below the post -mine high water level will be no steeper than 3:1.
Reclamation of the side slopes will take place concurrent with mining of Area 1 and Area 2. Scrapers will be used
to place bedrock claystone and overburden material along the reservoir perimeters to achieve the final grade. Final
reclamation by capping with growth medium and re -vegetating above the expected reservoir water level will follow
backfilling operations closely to minimize the amount of disturbance at any one time.
During reclamation activities, inlet and outlet works for Pond 1 will be installed. The inlet works will be constructed to
provide water from the Brighton Ditch along the west side of the site. Outlet works will be designed and
constructed by the City of Westminster, the user of the reservoir for water storage. The design specifications and
plans for the facilities will be provided to the Division prior to construction.
6.0 REPLACEMENT WETLAND AND RIPARIAN AREAS
Specific areas identified in Exhibit F (Map F-1) will be reclaimed for wetland mitigation (36.7 acres) or cottonwood
replacement (10.0 acres). Reclamation will begin after backfilling and minor grading and placement of growth
media are completed in a reclamation area. Depending on groundwater elevations, the final surface elevation of
the backfilled wetland mitigation areas may be below the existing and surrounding ground elevation. Any slopes
remaining will be reclaimed to a minimum 3H:1 V grade. In the northwest part of the permit area, a 25 -ft setback will
be included from County Road 23 % to the top of the 4H:1 V slope that is graded down to the wetland area.
All areas disturbed by mining and site reclamation activities will be revegetated as appropriate with a seed mix,
depending on the type of reclamation to be completed — wetland or upland. The planned seed mixes are
presented below.
7.0 SURFACE WATER AND GROUNDWATER
Overburden and mine materials will be inert and impacts to local surface water or groundwater quality are not
anticipated to occur because of mining activities. Holcim will comply with all applicable Colorado water laws and all
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vvattenberg Lakes Amendment, Exhibit E — Reclamation Plan March 2024
applicable Federal and State water quality laws and regulations and appropriate storm water management and
erosion control to protect the adjacent South Platte River and riparian vegetation.
8.0 WILDLIFE
The area covered by this reclamation plan was formerly used for mining or general agriculture There is significant
habitat for many wildlife species along the river corridor which is outside our permit boundary. Please see Exhibit
H (Wildlife Information) for more information.
While the reclamation plan does not propose to create wildlife habitat, all activities will be planned considering the
safety and protection of wildlife on the property. Some species may be temporarily displaced by the mining and
reclamation activities, but these species are expected to re-establish with no difficulty after the reclamation has
been completed. The creation of the lakes and replacement wetlands may create additional opportunities for aquatic
birds, mammals, and fish.
9.0 GROWTH MEDIUM
Surface soils in the proposed mine and reclamation areas are predominantly Altvan loam, Aquolls and Aquents,
and Dacono clay. All suitable soil material will be salvaged for use as growth medium. Up to 6 inches of surface
soil on the property, where disturbance is planned, is expected to be usable as growth medium for reclamation.
This layer includes the root zone of grasses and crops, which will be stripped and stockpiled separately.
The growth medium will be segregated and stored separately from the overburden material as required by Rule
3.1.9(1). Sufficient growth medium will be stockpiled to reclaim all disturbed areas. The mine plan map depicts the
location and configuration of the berms. The berms will be protected from wind and water erosion by vegetative
cover if in place for more than 180 days and will be vegetated depending on the seeding "window" parameters for
dryland grass, which are typically between September and April.
Based on the mining and reclamation phasing and schedule, the growth medium is not expected to remain
stockpiled for more than 1 to 2 years. 1f the stockpile remains for more than one growing season it will be seeded
with a fast-growing vegetative cover to prevent erosion. Where required for reclamation, growth medium will be
placed to a depth of approximately 6 inches.
10.0 REVEGETATION
As mining and backfilling operations are completed, areas for reclamation will be graded and shaped for
revegetation. Runoff or excess water from adjacent areas will not be allowed to flow over slopes being graded and
seeded. Following placement of growth media, seeding and planting will be performed according to NRCS
recommended practices. All disturbed areas will be revegetated as part of the reclamation process. The following
revegetation procedures are anticipated but may be modified as conditions dictate:
• Grass seed will typically be planted in unfrozen soil between October 1 and April 30.
• Grass seed will be planted with a grass drill, or where necessary, with a broadcast seeder.
• The proposed seed mixes and application rates in pounds of pure live seed per acre are listed below.
• Weed control practices will be implemented as required.
Upland Areas. For disturbed upland area the reclamation plan includes revegetatiog with appropriate seed mixes
to minimize erosion and reestablish natural terrain. The grass mixture below was selected to be long lasting and
regenerating. The ground surface will be fine graded prior to seeding. Reservoir side slopes below the anticipated
reservoir water level will not be seeded.
Upland grass seed will be planted with a drill equipped with depth bands and press wheels. The seeded areas will
then be covered with straw mulch at a rate of 2,000 pounds per acre. The straw will be crimped into the soil to
I"mi TETRA TECH
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Wattenberg Lakes Amendment, Exhibit E — Reclamation Plan
March 2024
control erosion until the grass becomes established. As an alternative, hydroseeding and hydromuiching may be
used to apply seed (at double the drill rate) and mulch.
The following upland seed mixture is planned:
Upland seed mix — 2004 permit
Common Name
Scientific
Name
Variety
°
�°
Mix
°f
Application
Rate
PLS
(lbslac)
Bouteloua
curtipendia
Vaughn
30.0%
1.35
Sideoats
Grama
Switchgrass
Panicum virgatum
Grenville
11.0%
0.5
Blue
Grama
a
Bouteloua
gracilis
Lovington
6.5% '
0.3
Western
Wheatgrass
Agropyron
smithii
Barton
52.5%
2.4
Total
lbs/ac
100%
4.55
Notes:
1. Pure Live Seed pounds per acre; rates shown are for drill seeding; double rates for broadcast seeding.
2. All upland areas will be mulched with 1 ton of certified weed free straw per acre. Mulch shall be applied within
24 hours of seeding and crimped in place.
Wetland Mitigation and Cottonwood Replacement Areas. The wetland mitigation areas will be planted and
seeded with wetland plants at the locations shown in Exhibit F (Map F-1); cottonwood replacement areas are also
shown in Map F-1. The wetland mitigation plan for the wetland areas, recently submitted to the U.S. Army Corps of
Engineers (USACE) under the Clean Water Act Section 404 permit application for the Wattenberg Lakes site, is
attached to this exhibit; see this document for further details. The following wetland seed mixture is planned, with
wetland type indicated as shown in Map F-1:
TETRA TECH
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Wattenberg Lakes Amendment, Exhibit E - Reclamation Plan
March 2024
Wetland seed mix (from Wattenberg Wetland Mitigation Plan, April 2023).
Scientific Name
Common
Name
Wetland
Type
Tree
Populus deltoides
Plains
cottonwood
Cottonwood
Shrub
Salix exigua
Sandbar
willow
Willow
-shrub
Salix amygdaloides
Peachleaf
willow
Willow
-shrub
Herbaceous
Bechrnannia syzigachne
American sloughgrass
Tall
emergent
Carex spp
Sedge
Tall
emergent
Distichlis spicata
Inland
saltgrass
Saltgrass
meadow
Eleocharis palustris
Common spikerush
Tall
emergent
Juncus spp
Rush
Wet
meadow,
Saltgrass
meadow
Panicum virgatum
Switchgrass
Tall
emergent,
Saltgrass
meadow
Sagittaria latifolia
Broadleaf
arrowhead
Tall
emergent
Schoenoplectus spp
Sedge
Tall
emergent
Scirpus spp.
Sedge
Wet
meadow,
Tall
emergent
Sparganium eurycarpum
Great
bur -reed
Tall
emergent
Spartina gracilis
Alkali
Cordgrass
Saltgrass
meadow
Spartina pecinata
Prairie
cordgrass
Tall
emergent, Saltgrass
meadow
11.0 WEED MANAGEMENT PLAN
A weed management program will be undertaken to control noxious and invasive plant species and to replace those
species with appropriate non-invasive vegetation. The requirements of the wetland mitigation plan accepted by the
USACE for this site will be followed under that plan which includes a commitment to manage State -listed noxious
weeds in the mitigation areas. State -listed noxious weeds will be controlled, and reseeding and irrigation will occur
as needed to establish self-sustaining desirable vegetation. As an example, Canada thistle (Cirsium arvense) and
leafy spurge (Euphorbia esula) will be treated by a combination of mowing at regular intervals and herbicides used
at the appropriate times and applications levels.
Imi
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Page 616
Wattenberg Lakes Amendment, Exhibit F - Reclamation Plan Map
March 2024
EXHIBIT F - RECLAMATION PLAN MAP
The Adequacy #1 Response replacement page for the Reclamation Plan Map (Exhibit F) is attached.
0
TETRA TECH
Page ill
4/2J2024 4:27:05 PM - O:1PROJECTS\LONGMONT171101117-71100011CAD1SHEETFILESIWATTENBERG RECLAMATION\F-1 RECLAMATION PLAN MAP.DWG - HART, GRACE
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WCR 4 1/2
EXISTING WETLANDS
WET MEADOW
MITIGATION AREA 1
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MAINTAIN CURRENT
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CONSTRUCTION RECLAMATION SLOPE FOR
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RECOMMENDATIONS BASED ON
GEOTECHNICAL ANALYSIS
(SEE GEOTECHNI CAL STABILITY EXHIBIT)
POTENTIAL WETLAND
WILLOW SHRUB
MITIGATION AREA 2
8 97 ACRES
(GW 12-18 INCHES BELOW FINAL GRADE)
(EXCLUDES EXISTING WETLANDS)
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(SEASONAL HIGH)
ACCESS ROAD TO
\ BE REMOVED AND
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REMOVE EXCESS FILL AND
GRADE TO RECLAMATION
ELEVATIONS
POTENTIAL NATIVE PALUSTRINE 1
EMERGENT WETLAND
MITIGATION AREA 4
10.44 ACRES
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0
Wattenberg Mine, Exhibit G — Water Information
March 2024
EXHIBIT G - WATER INFORMATION
1.0 INTRODUCTION AND BACKGROUND
This exhibit addresses the hydrologic conditions at the Wattenberg Lakes Mine located in portions of Sections 25
and 36, Township 1 North, Range 66 West of the 6th Principal Meridian, Weld County, Colorado (See
Figure G-1). Holcim plans to dewater and mine an additional 6.2 acres within the future Pond 1 (Struck Pond)
area, followed by the conversion of the mined area and into a lined water storage facility. The water storage will
be surrounded by a slurry wall with a perimeter drain to minimize hydrologic impacts to the nearby area. The
exhibit documents the depth and direction of groundwater flow, the nature of the subsurface geologic materials
through which it flows (Figure G-2), potential interactions with streams, lakes, canals, or other surface water
bodies in the area, and the potential impacts to surrounding water users due to dewatering, mining, and slurry
wall installation.
The information in this Section is intended to satisfy the requirements outlined in Sections 3.1.6, 6.3.3, 6.3.4, and
6.4.7 of the Colorado Mined Land Reclamation Board's Construction Material Rules and Regulations.
Section 3.1.6
(1) Hydrology and Water Quality: Disturbances to the prevailing hydrologic balance of the affected land and of the
surrounding area and to the quantity or quality of water in surface and groundwater systems both during and after
the mining operation and during reclamation shall be minimized by measures, including, but not limited to:
(a) compliance with applicable Colorado water laws and regulations governing injury to existing water
rights,
(b) compliance with applicable federal and Colorado water quality laws and regulations, including
statewide water quality standards and site -specific classifications and standards adopted by the Water
Quality Control Commission,'
(c) compliance with applicable federal and Colorado dredge and fill requirements; and
(d) removing temporary or large siltation structures from drainage ways after disturbed areas are
revegetated and stabilized, if required by the Reclamation Plan.
Section 6.4.7
(1) If the operation is not expected to directly affect surface or groundwater systems, a statement of that
expectation shall be submitted.
This site is directly adjacent to the South Platte River. The South Platte River was utilized in the past for the
discharge of dewatering water during mining. Current dewatering water is being sent to the Stillwater Ski Lake
(Figure G-1). Short-term dewatering will be required for the additional mined acreage prior to the construction of
the slurry wall. The site has been dewatered for mining in the past, where drawdown was observed to be very
localized in nature (see hydrograph Figures G-7 through G-15)) because of the presence of the river which
mitigates excessive groundwater drawdown that might affect groundwater users in the area. Also, the presence of
the river has the collateral benefit of mitigating the potential shadow effect potentially caused by the slurry wall
that will surround the Struck Pond.
(2) If the operation is expected to directly affect surface or groundwater systems, the Operator/Applicant shall:
(a) Locate on the map (in Exhibit C) tributary water courses, wells, springs, stock water ponds, reservoirs,
and ditches on the affected land and on adjacent lands where such structures may be affected by the
proposed mining operations.
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Wattenberg Mine, Exhibit G — Water Information March 2024
Please see Exhibit C Pre -Mining Maps for the location of all tributary watercourses, wells, springs, stock water
ponds, reservoirs, and ditches on the affected land and on adjacent lands where such structures may be affected
by the proposed mining operations.
(b) Identify all known aquifers
The Wattenberg Lakes site is underlain by multiple aquifers:
• The alluvial deposits Post -Piney Creek Alluvium and Piney Creek Alluvium of the South Platte River.
o described in: Colton, Roger B., 1976. "Geologic Map of the Boulder -Fort Collins -Greeley
area, Colorado", USGS Miscellaneous Geologic Investigations Map I -855-G. (See Figure G-
2)
• The Lower Arapaho Aquifer
o described in: Robson, S.G. 1989, "Alluvial and Bedrock Aquifers of the Denver basin —
Eastern Colorado's Dual Ground -Water Resource", USGS Water -Supply Paper 2302
• The Laramie -Fox Hills Aquifer
o described in: Robson, S.G. 1989, "Alluvial and Bedrock Aquifers of the Denver basin —
Eastern Colorado's Dual Ground -Water Resource", USGS Water -Supply Paper 2302
(c) Submit a brief statement or plan showing how water from de -watering operations or from runoff from
disturbed areas, piled material and operating surfaces will be managed to protect against pollution of
either surface or groundwater (and, where applicable, control pollution in a manner that is consistent with
water quality discharge permits), both during and after the operation.
The conceptual model of the subsurface geology and groundwater flow was developed from the geologic map for
the area and the subsurface conditions observed during the installation of the monitoring well network at the
Wattenberg Lakes site (Figure G-3). Based on water levels measured in these wells, groundwater elevation maps
were developed for both low-water conditions associated with the winter non -irrigation season and conditions that
exist at the end of the irrigation season in August (Figures G-4 and G-5, respectively). Figures G-4 and G-5 indicate
a northeasterly flow direction that becomes flatter and more northerly as the water crosses the site. Figure G-4
groundwater contours show the impacts of the recent and current Struck Pond dewatering, where this water is sent
to the Stillwater Ski Lake. There will be minimal additional mining activities, limited to within the Struck Pond area;
changes to current land surfaces will be primarily due to reclamation activities as outlined in Exhibit E.
Pond 3 currently has a slurry wall, constructed in 2013, which influences groundwater flow in the immediate
vicinity. The planned Struck Pond expansion will involve dewatering prior to and during mining. Shallow
groundwater flow will be impacted during dewatering activities associated with the expansion although these
impacts are expected to be limited to the aquifer only around this area. Due to the permeability contrast between
the gravel aquifer and the bedrock beneath it, hydraulic changes due to mining will not impact the underlying
Laramie -Fox Hills aquifer. Effects on groundwater levels are projected to be limited in extent duo to natural and
manmade hydrologic and hydrogeologic characteristics and boundaries, principally including the transmissive
nature of the alluvial aquifer, the nearby South Platte River, and the minimal additional mining operations.
The reclamation plan for the mine includes the placement of a slurry wall and perimeter drain around the Struck
Pond. The Struck Pond will then be used as water storage for the City of Westminster. Changes to the hydrologic
balance in the area will be limited to minor, localized alterations of the existing groundwater flow patterns due to
the slurry wall.
2.0 HISTORIC USE
The Wattenberg Lakes property has been used for mining since the Colorado Division of Reclamation, Mining and
Safety (DBMS) issued the original permit in 2004. The reclaimed Parker-Dersham aggregate mine and pond,
with the Walker Slurry Wall around this pond and the pond to the immediate south, lies to the south of the
property, as does the Stillwater Ski Lake, which is man-made and unlined. Agricultural lands exist to the west of
the site. Additional aggregate mines and industrial operations occur across the South Platte River to the east.
TETRA TECH
Page 219
Wattenberg Mine, Exhibit G — Water Information March 2024
3.0 HYDROGEOLOGIC SETTING
Geology
The geology mapped at land surface beneath the site consists of alluvial deposits comprised of sand, silt, and gravel
primarily (Figure G-2) of the Piney Creek and Post -Piney Creek Alluvium units. On site wells (Figure G-3) were
installed in 2002, however no boring logs were found. The depth of the wells on site indicates up to 25 feet of alluvial
material overlaying bedrock. Most wells appear to be highly transmissive. Water levels measured in the wells are
generally less than 10 ft deep and approach the ground surface in some cases (see hydrograph Figures G-7 through
G-15)
The shallow bedrock of the Laramie -Fox Hills aquifer consists of weathered, consolidated sedimentary rock
varying from claystone to siltstone. In comparison to the alluvium, the weathered bedrock is expected to be
several orders of magnitude less transmissive due to the consolidated, finer -grained properties.
Groundwater
Groundwater at the site represents a combination of water that flows through the high -permeability alluvial deposits
parallel to the South Platte River and water that infiltrates due to the agricultural fields that dominate the land use to
the west of the river. As groundwater approaches the river, groundwater flows in a direction that is near parallel to
the river due to the constant interaction with the river stage within the porous sands and gravels. The direction of
regional shallow groundwater flow is therefore toward the northeast but changing to a near northerly direction
near the river. This is especially apparent during the winter when compared to the end of the agricultural season
in late August (Figures G-4 and G-5, respectively) and may be due to the influence of agricultural runoff coming
from west of the site.
Monitoring well MW -6 has limited groundwater elevation data as this well was inaccessible and not monitored
prior to 2020. The small amount of available data shows limited water in this well compared to the saturated
thickness of the other site wells (hydrograph Figures G-7 through G-15). This well was refurbished in August 2021
which resulted in an additional 3 feet of water in the well. Assuming the well was installed correctly and is not
damaged, it is possible this discrepancy is due to the upgradient Walker Slurry Wall around the Parker-Dersham
Pond and adjacent pond to the south, which may be casting a groundwater shadow on this well. In addition, while
dewatering has taken place previously, the most recent dewatering of the unlined Struck Pond began in late 2022.
The resulting water is routed to the unlined Stillwater Ski Lake, where the effect of additional water into this lake is
noticeable as shown in hydrograph Figures G-7 through G-15 and Figure G-4.
Existing Monitoring Wells
A network of monitoring wells was installed in 2002 to characterize the groundwater conditions at the Wattenberg
Lakes property (Figure G-3). The boreholes for the wells were drilled to the bedrock contact and typically have a
high saturated thickness. These wells generally show the direction of groundwater flow to be in a northeasterly to
northerly direction, generally in equilibrium with the river water surface elevations, although as discussed above
MW -6 may be exhibiting signs of a localized groundwater shadow caused by the upgradient Walker Slurry Wall.
Well Inventory
In April 2023, a well inventory of the Affected Area and adjacent areas was conducted to identify wells near the
site. The inventory included a search of the State of Colorado Office of the State Engineer database of wells
located within 1 mile of the Affected Area (Table 1). The information compiled from the State Engineer database
is assumed to be accurate and appropriate for the purposes of this exhibit; only the information provided in the
database is listed. The well inventory identified 442 wells within 1 mile of the Affected Area. Figure G-6 shows the
Affected Area and the constructed well locations on file with the Colorado Division of Water Resources, where the
numbers shown on Figure G-6 correspond to the first column numbers shown in Table 1. The majority of these
wells are screened in the shallow alluvial material, although a handful are noted to be screened in the Laramie -
TETRA TECH
Page 319
Wattenberg Mine, Exhibit G — Water Information March 2024
Fox Hills aquifer and the Lower Arapaho aquifer. Wells in this area are noted to be used for irrigation, domestic
use, stock water, monitoring, industrial, and municipal use.
4.0 HISTORIC AND FUTURE GROUNDWATER LEVELS
Figures G-7 through G-15 present hydrographs for the nine on -site monitoring wells. Labeled, dashed lines are
included to indicate mine dewatering in 2006 and the completion of the Pond 3 slurry wall in 2013 Wells MW -2
and MW -3 experienced noticeable groundwater elevations declines during dewatering which both recovered
quickly due to the high transmissivity of the area.
Many of the monitoring wells show a rise in groundwater elevations following 2013. Upgradient wells such as
MW -7 and MW -8 exhibit gradually climbing water levels, while MW -2 and MW -5 show quick water level increases
at the end of 2013 followed by plateauing values. Figure G-3 shows that MW -2 and MW -5 are immediately
upgradient of the Pond 3 slurry wall. In the absence of other information, the water level increases at MW -2 and
MW -5 could be interpreted as groundwater mounding due to the slurry wall. However, due to the major flooding of
the area in September 2013 and the gradual water elevation increase at upgradient wells MW -7 and MW -8, the
late 2013 water level increase at MW -2 and MW -5 does not conclusively point to a notable groundwater mound.
These wells show relatively consistent groundwater elevations since the installation of the slurry wall, although
with the general water level increases across the rest of the site this could indicate some form of minor
groundwater shadow.
Due to the high transmissivity of the area, and based on the hydrograph Figures G-7 through G-15, it is
anticipated that implementing the remaining mining activities and associated dewatering, the Struck Pond slurry
wall installation, and the reclamation work will have minimal impact on local groundwater elevations.
Nevertheless, it is important to recognize that the Struck Pond may create a partial barrier to groundwater flow
due to its positioning between locations that currently have slurry walls, namely Pond 3 and the Walker Slurry
Wall. Due to the unique positioning, the hydraulic impacts from the Struck Pond both during dewatering and
potentially after the slurry wall is installed may be greater than without the two other structures in place. The
perimeter drain around the slurry wall is expected to minimize these potential effects. Structures and wells (not
including monitoring wells, Figure G-6 and Table 1) located within 1/2 mile downgradient of the Struck Pond
include:
• Stillwater Ski Lake
• Huett ett Seep/Ditch
• Well 10 — permit number 21385-
• Well 80 — permit number 191-WCB
• Well 231 — permit number 6291-R
• Well 272 — permit number 49717-F
Wells 10 and 272 are not screened in the shallow alluvial aquifer and would therefore be unaffected by
dewatering or the slurry wall.
Wells (not including monitoring wells) located within %/% mile upgradient and cross gradient from the Struck Pond
which could be affected by dewatering include:
• Well 36 — permit number 138214--A
• Well 138 — permit number 132424--A
• Well 166 — permit number 130499--A
Well 171 — permit number 138214-
• Well 173 — permit number 19893-
• Well 223 — permit number 202399-
• Well 295 — permit number 48617-F
• Well 387 -- permit number 6647-F
• Well 392 — permit number 213-WCB
• Well 438 — permit number 158810--A
IN TETRA TECH
Page 4j9
Wattenberg Mine, Exhibit G — Water Information March 2024
Wells 166, 295, and 438 are not screened in the shallow aquifer and would therefore be unaffected by dewatering
or the slurry wall.
5.0 AVAILABLE SATURATED THICKNESS
The available well information for the monitoring wells on site indicates bedrock was encountered at depths of up
to 27 feet below ground surface. Water levels at the time of well installation in 2002 ranged from 2 to 9 feet below
ground surface. Based on this data, the saturated thickness of aquifer beneath the site ranges from approximately
7.5 to 22.5 ft (Table 2).
Water wells completed in sand and gravel aquifers typically provide approximately 25 to 30 gallons per minute per
foot of drawdown of saturated thickness in the well. Domestic wells are typically permitted for maximum pumping
rates of 15 gallons per minute (gpm). As a result, less than 2 feet of saturated thickness above the pump intake is
likely to be required to provide the allowed pumping rates of 15 gpm. Mine dewatering in 2006 was not observed
to have an adverse effect on off -site wells, and minimal, short-term dewatering activities are anticipated to
occurring during the remaining mining, where dewatering water will be routed to the nearby Stillwater Ski Lake.
Owing to this, the response to previous dewatering activities noted in Appendix G, and the high transmissivity of
the shallow alluvium, adverse effects to off -site wells are not anticipated.
6.0 HYDRAULIC IMPACTS
There will be 6.2 acres of additional mining at the Wattenberg Lakes site, limited only to the Struck Pond
expansion area, which will require temporary, short-term dewatering. During dewatering a cone of depression will
form around the Struck Pond excavation and spread to some extent over time. Currently, dewatering water is
sent to Stillwater Ski Lake; this helps to offset downgradient impacts. Nevertheless, the dewatering has the
potential to impact the wells listed above in addition to the ski lake and the Huett Seep/Ditch. Due to the proximity
to the South Platte River, the spread of dewatering impacts is expected to be limited as was observed during the
period of time shown in the hydrographs for the wells around Pond 3. The short-term nature of the dewatering will
keep any long-term impacts to a minimum. Based on the high water table and the responses shown in the
hydrographs (Figures G-7 through G-15), additional dewatering is unlikely to have a long-term effect on nearby
water wells.
The slurry wall construction around the Struck Pond may have a localized effect on groundwater, the Huett
Seep/Ditch, and the Stillwater Ski Lake, namely some mounding and shadowing. Based on the observed
hydraulic response to construction of the slurry wall around Pond 3, these responses will likely be minimal and
localized in nature and will likely not affect any nearby water wells. The hydrologic effects may be amplified locally
but only slightly due to the location of the Struck Pond between two structures that currently have slurry walls, but
it is anticipated that the perimeter drain on the Struck Pond will help to minimize these potential effects.
7.0 WATER USE
Section 6.4.7 of the Colorado Mined Land Reclamation Board's Construction Material Rules and Regulations:
(3) The Operator/Applicant shall provide an estimate of the project water requirements including flow rates and
annual volumes for the development, mining and reclamation phases of the project.
(4) The Operator/Applicant shall indicate the projected amount from each of the sources of water to supply the
project water requirements for the mining operation and reclamation.
(5) The Operator/Applicant shall affirmatively state that the Operator/Applicant has acquired (or has applied for) a
National Pollutant Discharge Elimination System (NPDES) permit from the Water Quality Control Division at
the Colorado Department of Health and Environment, if necessary.
There will be minimal water use after mining when most of the site is in the reclamation phase. The minor amount
of mining at the site will intercept some groundwater tributary to the South Platte River. Consumptive uses of
TETRA TECH
Page 519
Wattenberg Mine, Exhibit G — Water Information March 2024
groundwater at the site include evaporation from groundwater exposed to the atmosphere, water retained in
material hauled off -site for processing, and water used for dust control.
Evaporative losses at the site are attributable to exposed groundwater that is ponded or removed through
dewatering for storage in the Stillwater Ski Lake. Evaporative losses were calculated as the difference between
gross evaporation and effective precipitation. The NOAA Technical Report NWS 33, Evaporation Atlas for the
Contiguous 48 United States (U.S. Department of Commerce) was used to determine the site's average annual
gross evaporation of 45 inches. Precipitation was obtained for the nearby City of Brighton and the total annual
precipitation for this site was determined to be 15.6 inches. Effective precipitation was calculated as 70 percent of
total precipitation; thus, the average annual effective precipitation was determined to be 10.9 inches. The
resulting evaporative loss rate is therefore 29.4 inches. The maximum total annual evaporative consumptive use
during the short period of additional mining at the site is estimated at 7 acre-feet, which is primarily a function of
the water used for dust control and the water retained within removed materials.
8.0 MONITORING AND MITIGATION PLAN
This Groundwater Monitoring and Mitigation Plan is prepared as part of Holcim's application to the DRMS for a
revised permit for the Wattenberg Lakes in Weld County, Colorado. This plan presents the methods and
locations for monitoring of groundwater during gravel mining and site reclamation activities. Although adverse
impacts to other local users of groundwater are not expected due to activities at the site, this plan addresses how
any adverse effects to groundwater would be mitigated, should they occur.
If needed, Holcim will submit a Temporary Substitute Water Supply Plan to the State Engineer's Office for
approval. The Temporary Substitute Water Supply Plan is designed to protect senior vested water rights and
mitigate potential depletions of flows in adjacent waterways.
Mining Plan
The 6.2 acres of additional mining will occur on the north and west edges of the currently ponded area of Struck
Pond. Some dewatering will be required to complete this phase but will be temporary and short term in nature.
Dewatering is planned for a period of approximately 10 months to accommodate earthwork activities, within which
mining is planned over a period of 2 months. The mined aggregate will be placed on the conveyor (north side of
Struck Pond) and conveyed to Holcim's Platte Valley Plant, and temporary stockpiles will be placed to the west
and north of the current Struck Pond. Following mining activities, the Struck Pond will be expanded as shown in
Figure G-1 and will be surrounded by a slurry wall and perimeter drain.
Monitoring
The monitoring plan will consist of regular data collection from the set of monitoring wells currently in place
around the perimeter of the Wattenberg Lakes permit area (Figure G-3). Data collection activities will include
monthly measurement of water levels in wells.
Water Quality Parameters
As mentioned above, due to the absence of large quantities of potential pollutants on site and the absence of
water quality samples collected at this site in the past, additional water quality samples are not proposed.
Domestic and irrigation Water Wells
Active domestic and irrigation wells are shown In Figure G-6 and Table 1. In the event of a well owner complaint,
either due to water quality or quantity, Holcim commits to reporting any complaints received from well owners to
the DRMS within 48 hours, investigating the complaint as soon as practical, and submitting the results to the
DRMS for evaluation within 30 days.
MO TETRA TECH
Page 619
Wattenberg Mine, Exhibit G — Water Information March 2024
Dewatering Discharge
Based on data collected from monitoring wells, the depth to groundwater is shallow and will likely be around 2 feet
below ground surface in the area of the Struck Pond. Due to the absence of large quantities of potential
pollutants on site (no on -site processing or concrete or asphalt production), the mining and reclamation operations
are not likely to affect groundwater quality on or off the site.
Holcim's Wattenberg Lakes facility complies with applicable requirements in the Colorado Discharge Permit
System (CDPS) General Permit COG500000 for Sand &, Gravel Mining Wastewater & Storm Water combined.
The Colorado Department of Health and Environment (CDPHE) Water Quality Control Division (WOOD)
considers stormwater runoff combined with mine dewatering water to be process water.
The available monitoring well data will be used to observe changes in alluvial groundwater flow associated with
mining and reclamation activities. Baseline data collected from the monitoring program will provide a range of
water levels for comparison with groundwater levels during site activities under this permit amendment. These
data will be utilized to evaluate the nature and extent of the change to the prevailing hydrologic balance and, if
necessary, provide for the development of corrective actions. Well owners in the section below refer specifically to
owners of wells from which extracted water is put to beneficial use, such as water wells, irrigation wells, etc.
Owners of monitoring wells are not considered well owners in this context since a change in water levels for these
wells does not represent material damage in cases where water extraction is not being conducted.
In the event of a well owner complaint, Holcim commits to reporting any complaints received from well owners to
the DRMS within 48 hours, investigating the complaint as soon as practical, and submitting the results to the
DRMS for evaluation within 30 days.
For the investigation, the first level of response will be to review water level data from the monitoring well network
and, if available, a measurement of the water level in the well of those making the complaint. Information will be
evaluated to determine if the complaint may be tied to dewatering or the slurry walls. If the data indicates that
there is no reason to believe the well of those making the complaint was impacted by dewatering or the slurry
walls, then there will be no further action taken by Holcim. If the data does not clearly show there is no impact, as
a second level of response Holcim will present a contract to the well owner requesting access to the well to
perform mechanical and electrical inspection and testing of the well and associated system, e.g., the pressure
tank. The agreement will explain that if the problem with the well is not due to a lower water level and is instead
due to a mechanical or electrical issue, the well owner will be responsible for the repairs. If the well is determined
to be in good working order and the problem is due to a lower water level, then the mining -associated impacts will
be addressed to the satisfaction of the DRMS. If the DRMS determines that the impact on a well for which
temporary mitigation has been initiated is not a result of Holcim's activities or is not solely a result of Holcim's
activities, Holcim will reduce or cease mitigation accordingly.
In the event of a complaint that a well has become unusable, and based on the inspection results described
above, Holcim will implement mitigation measures within 7 days. Mitigation measures would include providing a
temporary alternative water supply that meets the documented historic well production or need until further
investigation can be conducted to determine if the well condition is due to the mining activities.
The DRMS, and potentially the Mine Land Reclamation Board (MLRB), are responsible for determining if
mitigation is required, as well as when and how any mitigation measures are implemented and discontinued after
the initial complaint is received. Should DRMS or MLRB conclude that mitigation action is required, Holcim will
begin to implement one or more mitigation measures.
Temporary mitigation measures may include, but are not limited to:
• Compensation for well owners to use their existing treated water system to replace the well production
loss
• Provision of a water tank and delivery water as necessary to meet documented historic well production or
need
Other means acceptable to both the well owner and Holcim.
TETRA TECH
Page 7I9
Wattenberg Mine, Exhibit G — Water Information March 2024
Long-term mitigation measures may include, but are not limited to:
• Cleaning a well to improve efficiency.
Providing an alternative source of water or purchasing additional water to support historic well use with
respect to water quantity and quality. If needed, water quality parameters will be checked in affected wells
to ensure alternative sources support the historic use.
• Modifying a well to operate under lower groundwater conditions. This could include deepening existing
wells or lowering the pumps. All work would be completed at Holcim's expense except for replacing
equipment that was non-functional prior to mining_
If existing wells cannot be retrofitted or repaired, replace the impacted well with a new replacement well
o Design and installation of a cistern.
If a groundwater mitigation action is required, Holcim will notify the DRMS of the condition, action taken, and will
report the results and present a plan for monitoring the mitigation.
9.0 RESPONSES TO DWR COMMENTS
Holcim responses to referral comments from DWR, received June 28, 2023, are presented in this section. Each
comment is provided first, immediately followed by the response.
Comment #1: Prior to the use or exposure of any groundwater, the Applicant must first obtain a well permit and a
substitute water supply plan ("SWSP") or decreed plan for augmentation to replace depletions caused by
groundwater consumption. Currently, depletions to the South Platte River at the site are covered by the Holcim
South Platte Combined SWSP (WDID 0202565), valid through December 31, 2023 and well permit no. 78627-F.
If the proposed water uses or depletions will exceed those allowed by the current SWSP approval and/or well
permit no. 78627-F, the Applicant must file an application for an amended SWSP and/or new well permit as
applicable. The site must continue to be operated under a SWSP until such time as the site is reclaimed
Replacement of lagged depletions must continue until there is no longer an effect on stream.
Response: The Wattenberg Lakes site is covered by an existing well permit under Permit No. 78627-F. It
allows an exposed groundwater area of 25 acres and total depletions of up to 137.5 acre-feet per year
(associated with exposed groundwater evaporation, withdrawals for dust control, and water lost with
mined product). For comparison, the entire 221,000 tons of material to be mined contain only 6.5 ac -ft of
water, so this amendment would not cause Holcim to exceed the well permit limits. Also, Wattenberg
Lakes is covered by an existing SWSP. Holcim believes that the SWSP is adequate to cover the
additional depletions anticipated from this amendment.
Comment #2: In certain areas of the South Platte River basin, SEO staff have observed groundwater problems
that appear to be related to the lining of gravel pits located near streams, and in particular, these problems occur
when multiple liners are located adjacent to each other. This office requests that DRMS consider the siting and
design of lined gravel pits to ensure that they will not individually or cumulatively result in impacts to the timing
and quantity of groundwater flow from upgradient locations back to the stream system. In addition to impacts to
property, such as flooding upgradient and reduced water levels downgradient of the liner, there are decrees of the
court that specify the timing, quantity, and amount of water depleted from the streams by wells and accreted to
the stream through recharge operations. The installation of a gravel pit liner should not result in changes to the
timing, location, and amount of such groundwater flow. According to the application, the Applicant proposes a
perimeter drain around the slurry wall of Pond 1/Struck Pond in order to reduce the effects of mounding behind
the walls.
Response: These concerns are addressed by installing a perimeter drain. The final design will be
provided to DRMS.
Comment #3: Any stormwater runoff intercepted by this operation that is not diverted or captured in priority must
infiltrate into the ground or be released to the stream system within 72 hours. Otherwise, the operator will be
required to make replacements for evaporation of stormwater. According to the application, stormwater will be
removed during dewatering of the site.
hiti TETRA TECH
Page 819
Wattenberg Mine, Exhibit G -- Water Information March 2024
Response: Holcim addresses stormwater runoff interception as a routine process in their operations and
will also manage stormwater under this amendment accordingly. Furthermore, the area will be graded to
limit the amount of incidental ponding.
Comment #4: Once mining is complete, Pond 1/Struck Pond will be lined and reclaimed as reservoirs for use by
the City of Westminster. Pond 2 is planned for wetland mitigation. Pond 3 has already been reclaimed. During
reclamation, Pond 1 will store Brighton Ditch water for the west side of the site. Such ditch water must be decreed
for storage purposes or released within 72 hours of storage. Reclamation will also include revegetation.
Response: See response to Comment #3. Water under this amendment will be managed in accordance
with Holcim's SWSP and final Augmentation Plan.
Comment #5: Concerning the wetland mitigation changed areas, there is no statutory requirement for the
Applicant to obtain input from the SEO. However, the Applicant should consider if their changed areas could
result in an order from the State or Division Engineers due to injury to vested water rights. The types of orders
that may be relevant to stream and/or wetland mitigation or restoration projects include:
1) discontinue a diversion that is causing material injury (e.g. any water diverted for vegetation must be
decreed for irrigation use and be diverted in priority);
2) release any water that has been illegally or improperly stored;
3) clear streams of unnecessary dams and obstructions that restrict or impede the flow of water (refer to
sections 37-92-501 and 502, Colorado Revised Statutes, for information about DWR's authority to
administer water and issue orders).
Response: Holcim will consider DWR's comment and Holcim plans to take steps to prevent injury to
vested water rights as a result of wetland mitigation. There will be no stream restoration projects that
would fall within the types of orders noted by DWR in this comment.
Comment #6: Additional information about DWR's position on restoration/mitigation projects is available on our
website at: dwr.colorado.gov/services/water-administration/pond-management-restoration-projects.
Response: Comment noted.
(lb
TETRA TECH
Page 9I9
.e end
Wattenberg Boundary
Future Slurry Wall
Currant Slurry Wall
Unlined Pond
•
4 •ci.� • •
• t Consolidated M frual •
Struck Pond
Wattenberg Boundary
Future Slurry Wall
Current Slurry Wall
Unlined Pond
n TETRA TECH
www.tetratech_com
351 Coffman Street, Suite 200
Longmont, Colorado 80501
Tel: (303) 772-5282
Qpp: Post -Piney Creek Alluvium
Qpc: Piney Creek Alluvium
Qb: Broadway Alluvium
GEOLOGIC MAP
Weld County, CO
e•
.'1'000 • 3,000 WIP 4 000
Project No.::
117-7110001
Date: MARCHL 18, 2024
Designed By: AKC
Figure No,
G-2
J
On Site Wells (Depth to Water
Collection Date: January 03, 2023,
except MW -9: December 14, 2017)
Winter Groundwater Elevation (ft)
Wattenberg Boundary
WINTER GROUNDWATER ELEVATION
REPRESENTATIVE OF NOVEMBER THROUGH MARCH CONDITIONS
Weld County, CO
On Site Wells (Depth to Water
-40- Collection Date: August 30, 2022,
except MW -9; August 31, 2017)
End of Season Irrigation
Groundwater Elevation (ft)
Wattenberg Boundary
- Future Slurry Wall
Current Slurry Wall
END OF IRRIGATION SEASON GROUNDWATER ELEVATION
REPRESENTATIVE OF JULY THROUGH SEPTEMBER CONDITIONS
Weld County, CO
4945.0
4943.0
4941.0
4939.0
4937.0
4-1
a
O
v 4935.0
av
w
c�
( 4933.0
4931.0
4929.0
4927.0
MW -1
i _
Mine dewatering
occurred between
February 2006 and
October 2006
I
I
Pond 3 slurry wall
completed June
2013
I
t
1
1
r
1
1
1
1
1
1
1
4925.0
01/01/02 01/21/04 02/09/06 02/29/08 03/20/10 04/08/12 04/28/14 05/17/16 06/06/18 06/25/20 07/15/22
Date
Elev. (ft)
Ground Elevation
--Bedrock Elevation
TITLE:
Water Level Elevation at Monitoring Well MW -1
HOLCIM-WCR, INC.
LOCATION:
Wattenberg Lakes Mine, Weld County, Colorado
TETRA TECH
APPROVED
DRAFTED
AKC
PROJECT It
117-7110001
DATE
05/02/2023
FIGURE
G-7
4936.0
4934.0
4932.0
4930.0
C
a
CO 4928.0
v
w
C)
nz
4926.0
4924.0
4922.0
Mine dewatering
occurred between
February 2006 and
October 2006
4920.0
01/01/02
I I
I I
I I
I I
II
I
I
I
I
I
I
I
I
I
I
MW -2
sPond 3 slurry wall
I completed June
12013
I
I
I
r
J
it
01/21/04 02/09/06 02/29/08 03/20/10 04/08/12 04/28/14 05/17/16 06/06/18 06/25/20 07/15/22
Date
—11!— G W
Elev. (ft)
—Ground Elevation
--Bedrock Elevation
r TLE
Water Level Elevation at Monitoring Well MW -2
HOLCIM-WCR, INC.
LOCATION:
Wattenberg Lakes Mine, Weld County, Colorado
TETRA TECH
APPROVED
DRAFTED P AKC
PROJECT It
117-7110001
DATE
05/02/2023
FIGURE
G-8
4934.0
4932.0
4930.0
4928.0
4926.0
17)
4924.0
z
co
a)
1 4922.0
4-0
4920.0
4918.0
4916.0
4914.0
MW -3
Mine dewatering
occurred between i
February 2006 and
October 2006
—t-4
I I
I I
4912.0
01/01/02 01/21/04 02/09/06
Pond 3 slurry wail
completed June
2013
02/29/08 03/20/10 04/08/12 04/28/14 05/17/16 06/06/18 06/25/20 07/15/22
Date
--411— GW
Elev. (ft)
Ground Elevation
--Bedrock Elevation
TITLE:
Water Level Elevation at Monitoring Well MW -3
HOLCIM-WCR, INC.
LOCATION:
Wattenberg Lakes Mine, Weld County, Colorado
h
TETRA TECH
APPROVED I
DRAFTED
PROJECT #
DATE
AKC
117-711O0O1
05/02/2023
FIGURE
G-9
J
I
CD
4-
0
711
al
w
co
4938.0
4936.0
4934.0
4932.0
4930.0
4928.0
4926.0
4924.0
4922.0
4920.0
4918.0
Mine dewatering
occurred between
February 2006 and
October 2006
i
I
I
I
I
MW -4
Pond 3 slurry wall
completed June
2013
4916.0 a
01/01/02 01/21/04 02/09/06 02/29/08 03/20/10 04/08/12 04/28/14 05/17/16 06/06/18 06/25/20 07/15/22
Date
—GW
Elev. (ft)
— Ground Elevation
— Bedrock Elevation
TITLE:
Water Level Elevation at Monitoring Well MW -4
HOLCIM-WCR, INC.
LOCATION:
Wattenberg Lakes Mine, Weld County, Colorado
TETRA TECH
APPROVED
PROJECT #
AKC
117-7110001
DATE 05/02/2023
FIGURE
G-10
4940.0
4938.0
4936.0
4934.0
4932.0
4930.0
4928.0
4926.0
4924.0
4920.0
4918.0
4916.0
4914.0
4912.0
i
IVI,YV-5
Mine dewatering
occurred between
February 2006 and
October 2006
I
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I
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I
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01/01/02
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01/21/04 02/09/06 02/29/08 03/20/10
Pond 3 slurry wall
completed June
2013
04/08/12 04/28/14 05/17/16 06/06/18 06/25/20 07/15/22
Date
--1�-- G W
Elev. (ft)
Ground Elevation
Bedrock Elevation
TITLE
Water Level Elevation at Monitoring Well MW -S
HOLCIM-WCR, INC.
LOCATION:
Wattenberg Lakes Mine, Weld County, Colorado
TETRA TECH
APPROVED
DRAFTED
AKC
PROJECT it
117-711O0O1
DATE
O5/O2/2O23
FIGURE
G-11
I
4946.0
4944.0
4942.0
4940.0
co
a
14938.0
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4934.0
4932.0
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I
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01/01/20
MW -6 refurbished
I
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I
07/19/20 02/04/21 08/23/21
Date
Struck Pond
dewatering began
in August 2022
03/11/22 09/27/22
G W
Elev. (ft)
Ground Elevation
Bedrock Elevation
MW -6 was installed in 2002 but was unavailable for
monitoring until 2020.
TITLE:
Water Level Elevation at Monitoring Well MW -6
HOLCIM-WCR, INC.
LOCATION:
Wallenberg Lakes Mine, Weld County, Colorado
ort,
tier
TETRA TECH
APPROVED
DRAFTED
AKC
PROJECT#
117-7110O01
DATE
05/02/2023
FIGURE
G-12
4944.0
4942.0
4940.0
4938.0
4936.0
I
0
II
4934.0
(3 4932.0
4930.0
4928.0
4926.0
4924.0
Mine dewatering
occurred between w
February 2006 and
October 2006
I
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Pond 3 slurry wall
completed June
2O13
01/01/02 01/21/04 02/09/06 02/29/08 03/20/10 04/08/12 04/28/l_4 05/17/16 06/06/18 06/25/20 07/15/22
Date
c-�— G W
Elev. (ft)
Ground Elevation
—Bedrock Elevat on
Water Level Elevation at Monitoring Well MW -7
HOLCIM-WCR, INC.
Wattenberg Lakes Mine, Weld County, Colorado
h
TETRA TECH
APPROVED
DRAFTED
AKC
PROJECT#
117-7110001
DATE
05/02/2023
FIGURE
G-13
4948.0
4946.0
4944.0
4942.0
4940.0
t0
3 4936.0
4934.0
4932.0
Mine dewatering
occurred between
February 2006 and
October 2006
Pond 3 slurry wall
completed June
2013
i i 1
4930.0 1 i
1 i i
i I
1 i
I] 1
I I
I
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01/01/02 01/21/04 02/09/06 02/29/08 03/20/10 04/08/12 04/28/14 05/17/16 06/06/18 06/25/20 07/15/22
—411—GW
Elev. (ft)
TITLE
LOCATION:
Ground Elevation
Water Level Elevation at Monitoring Well MW -8
HOLCIM-WCR, INC.
Wattenberg Lakes Mine, Weld County, Colorado
APPROVED
DRAFTED
PROJECT #
117-7110001
05/02/2023
FIGURE
4940
4938
4936
co
4-0
C
O
CZ 4934
w
4932
4930
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occurred between
February 2006 and
October 2006
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Pond 3 slurry wall
completed June
2013
I
I
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01/01/02 01/21/04 02/09/06 02/29/08 03/20/10 04/08/2 04/28/14 05/17/16 06/06,-`18 06/25/20 07/15/22
Da_e
�--GW
Elev. (ft)
Ground Elevat on
No bedrock elevation available for MW -9.
MW -9 lost in January 2018 due to unknown causes.
TITLE:
Water Level Elevation at Monitoring Well MW -9
HOLCIM-WCR, INC.
LOCATION:
Wattenherg Lakes Mine, Weld County, Colorado
f
lb
411.10
TETRA TECH
APPROVED
DRAFTED
AKC
PROJECT # I 117-7110001
DATE
05/02/2023
FIGURE
G-15
Wattenberg Lakes Amendment, Exhibit H — Wildlife
March 2024
EXHIBIT H - WILDLIFE
NM -
1.0 GENERAL
The Information Planning and Consultation [IPaC] (USFWS, 2023) database was queried for federally -listed
threatened and endangered species with the potential to occur in the vicinity of the site (see Attachment H-1) Based
on the IPaC resource list, there are no critical habitats at this location although the threatened and endangered
species included in the list may be potentially affected by activities at this site. There are no known
threatened/endangered species within the proposed project boundary.
Prior to mining under the 2004 DRMS Permit, the Wattenberg Lakes site was a working ranch used primarily for
livestock grazing with some areas cultivated for tree production and other crops. The site contained a mixture of
open water, riparian, wetland, and upland habitats consisting of native vegetation. Cattail marsh, wet meadow, and
stands of willow and mature cottonwoods were all found on the site. As a result of mining, with reclamation not
completed, there are fewer areas of native vegetation and more areas of disturbed lands. However, reclamation will
involve establishing a mixture of open water, riparian, wetland, and upland habitats consisting of native vegetation.
Wildlife known to be common or abundant in Weld County, and which might occur within or near the proposed
project site include a variety of amphibians, reptiles, birds and mammals. Frogs, toads, salamanders, lizards, and
snakes would all be expected to inhabit areas similar to those found within or near the proposed site, with more
abundance in areas not disturbed by mining and in previously disturbed areas as they are reclaimed. Common
species could include the bullfrog, plains spadefoot toad, tiger salamander, plains garter snake, and fence lizard,
Many birds may use habitats similar to those found at the proposed Wattenberg Lakes site, either year-round,
seasonally for nesting, or temporary for roosting during migration Some of the common or abundant species could
include robins, starlings, grackles, magpies, blackbirds, cowbirds, orioles, finches, sparrows, swallows, wrens,
yellowthroats, larks, kingbirds, doves, great horned owl, red-tailed hawk, Cooper's hawk, sharp -shinned hawk
American kestrel and bald eagle. In 2004, prior to mining, burrowing owls were observed on portions of the site
during the summer months. Because of the abundant wetland and open water habitat within and near the proposed
project site, shore birds and waterfowl such as killdeer, herons, gulls, pelicans, ducks, Canadian geese, and grebes
might also be present.
It could be expected that most mammals common or abundant in Weld County would be found near or within the
Wattenberg Lakes site. Smaller mammals that might be found at the site might include bats, mice, voles, gophers,
cottontail rabbits, squirrels muskrats, beavers, raccoons, and skunks. Although several species of mice may occur
within the site, critical habitat for the endangered Preble's meadow jumping mouse is not present (USFSW, 2023).
Some of the larger mammals could include both mule and white-tailed deer, coyote, and fox.
Mining and reclamation operations may disturb some of the wildlife within the permit boundary and adjacent area.
However, mining activities will be confined to specific areas with reclamation shortly after mining. Other earthwork
prior to reclamation will be of short duration to limit the total disturbed acreage at any one time. This will help limit
the disturbance to wildlife in the area
Colorado Parks and Wildlife (CPW) provided referral comments (CPW, 2023; see Attachment H-2) on the DRMS
Permit Amendment in June 2023 related to bald eagle nesting and roost site information in the area along with
recommendations for protection of the nearby South Platte River which is classified as Aquatic Native Species
Conservation Waters. Holcim held a consultation with CPW in January 2024 to better understand the 2023 referral
comments/recommendations and their ongoing applicability to the Project (Tetra Tech, 2024; see Attachment H-3).
Holcim and CPW reviewed current bald eagle nest and roost locations using CPW's online Species Activity Mapping
application (CPW, 2024) and determined that there is one active bald eagle nest (Nest 1 in attached Figure H-1)
for which monitoring is not required because it is more than 0.5 mile outside of the project permit boundary buffer.
[hl
TETRA TECH
Page 112
Wattenberg Lakes Amendment, Exhibit H — Wildlife
March 2024
As shown in Figure H-1, Nest 2, which is located within the project permit boundary, is an inactive raptor nest and
was last observed to be in unused condition when Tetra Tech monitored the nest in August 2023. This nest was
previously used by a nesting pair of bald eagles until 2010, when the pair moved north of Weld County Road 6 to
the current active Nest 1 location. For the inactive Nest 2, CPW recommends but does not require monitoring of
Nest 2 once per month during the raptor nesting season (generally beginning of December through end of July for
bald eagle; beginning of February through end of July for other raptor species [CPW, 2020]) up until the start of
construction, to verify it is still inactive prior to construction activity beginning. Once construction begins, the nest
would no longer need to be monitored if it is inactive Therefore, Holcim will monitor the Nest 2 site for bald eagle
or other raptor use of the nest on a monthly basis during the raptor nesting season until construction starts under
DRMS Permit Amendment 1. If Nest 2 is observed to be actively used, then Holcim will consult further with CPW
Regarding CPW's recommendation for protecting the South Platte River aquatic resources, during Holcim's
consultation with CPW in January 2024, it was agreed that no aquatic impacts are anticipated as work will not be
conducted within the nearby South Platte waters. Erosion and stormwater controls will be in place during the work
to be conducted under this DRMS Permit Amendment, thus protecting the nearby South Platte River.
2.0 REFERENCES
CPW (Colorado Parks and Wildlife). 2020. Recommended Buffer Zones and Seasonal Restrictions for Colorado
Raptors. Accessed January 30, 2024 at
https://cpw state.co.us/Documents/WildlifeSpecies/LivingWithWildlife/Raptor-Buffer-Guidelines.pdf
CPW. 2023. Referral Comments from CPW (Lexi Hamous) for DRMS Permit M2004051, Revision AM 1. Email
dated June 20, 2023
CPW. 2024. Species Activity Mapping Application. Accessed January 30, 2024 at
hti s:/lwww.arc is.crcrn/a sr'ir-istantlinteractivele end/lnclex.i)inil?appid=b3e1 f4c17e98461c86f0083bS2e
91250
Tetra Tech. 2024 Coordination Call Record with Colorado Parks and Wildlife. Notes recorded by Alecia Phillips —
other attendees included Lexi Hamous (CPW), Wyatt Webster (Holcim), and Fred Charles (Tetra Tech).
January 30, 2024.
USFWS (U.S. Fish and Wildlife Service). 2023. Information for Planning and Consultation (IPaC). Accessed on
April 20, 2023 at https:llecos fws.flac/location/index.
fhl
TETRA TECH
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IPaC
Exhibit H-1
U.S. Fish & Wildlife Service
IPaC resource list
This report is an automatically generated list of species and other resources such as critical
habitat (collectively referred to astrust resourcel under the U.S. Fish and Wildlife Service's
(USFWS) jurisdiction that are known or expected to be on or near the project area referenced
below. The list may also include trust resources that occur outside of the project area, but
that could potentially be directly or indirectly affected by activities in the project area.
However, determining the likelihood and extent of effects a project may have on trust
resources typically requires gathering additional site -specific (e.g., vegetation/species
surveys) and project -specific (e.g., magnitude and timing of proposed activities) information.
Below is a summary of the project information you provided and contact information for the
USFWS office(s) with jurisdiction in the defined project area. Please read the introduction to
each section that follows (Endangered Species, Migratory Birds, USFWS Facilities, and NWI
Wetlands) for additional information applicable to the trust resources addressed in that
section.
Location
Weld County, Colorado
C. a . !•rwj k_
v.%
Local office
Colorado Ecological Services Field Office
t. (303) 236-4773
I� (303) 236-4005
https://ipac.ecosphere fws.gov/location/LNE5CVVJ4CVF7TO2l67UH5XMZZ4/resources 1/12
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MAILING ADDRESS
Denver Federal Center
P.O. Box 25486
Denver, CO 80225-0486
PHYSICAL ADDRESS
134 Union Boulevard, Suite 670
Lakewood, CO 80228-1807
https://ipac.ecosphere.Ms.govilocation/LNE5CWJ4CVF71-O2167UH5XMZZ4/resources 2/12
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Endangered species
This resource list is for informational purposes only and does not constitute an analysis
of project level impacts.
The primary information used to generate this list is the known or expected range of each
species. Additional areas of influence (AOl) for species are also considered. An AOI includes
areas outside of the species range if the species could be indirectly affected by activities in
that area (e.g., placing a dam upstream of a fish population even if that fish does not occur at
the dam site, may indirectly impact the species by reducing or eliminating water flow
downstream). Because species can move, and site conditions can change, the species on this
list are not guaranteed to be found on or near the project area. To fully determine any
potential effects to species, additional site -specific and project -specific information is often
required.
Section 7 of the Endangered Species Act requires Federal agencies to "request of the
Secretary information whether any species which is listed or proposed to be listed may be
present in the area of such proposed action" for any project that is conducted, permitted,
funded, or licensed by any Federal agency. A letter from the local office and a species list
which fulfills this requirement can only be obtained by requesting an official species list from
either the Regulatory Review section in IPaC (see directions below) or from the local field
office directl
y•
For project evaluations that require USFWS concurrence/review, please return to the IPaC
website and request an official species list by doing the following:
1. Draw the project location and click CONTINUE.
2. Click DEFINE PROJECT.
3. Log in (if directed to do so).
4. Provide a name and description for your project.
5. Click REQUEST SPECIES LIST.
Listed species1 and their critical habitats are managed by the Ecological Services Program of
the U.S. Fish and Wildlife Service (USFWS) and the fisheries division of the National Oceanic
and Atmospheric Administration (NOAA Fisheries?).
Species and critical habitats under the sole responsibility of NOAA Fisheries are not shown
on this list. Please contact ,NOAA Fisheries for species under their jurisdiction.
1. Species listed under the Endangered Species Act are threatened or endangered; IPaC also
shows species that are candidates, or proposed, for listing. See the listing status page for
more information. IPaC only shows species that are regulated by USFWS (see FAQ).
https://ipac.ecosphere.fws.gov/location/LNE5CWJ4CVF7TO2I67UH5XMZZ4/resources 3/12
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2. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office
of the National Oceanic and Atmospheric Administration within the Department of
Commerce.
The following species are potentially affected by activities in this location:
Mammals
NAME
Gray Wolf Canis lupus
This species only needs to be considered if the following
condition applies:
a Lone, dispersing gray wolves may be present throughout
the state of Colorado. If your activity includes a predator
management program, please consider this species in your
environmental review.
There is final critical habitat for this species,
https://ecos.fws.gov/ecp/species/4488
STATUS
Endangered
Preble's Meadow Jumping Mouse Za pus hudsonius preblei Threatened
Wherever found
There is final critical habitat for this species. Your location does
not overlap the critical habitat.
https://ecos.fws.gov/ecp/species/4090
Birds
NAME
SIAIUS
Eastern Black Rail Laterallus jamaicensis ssp. jamaicensis Threatened
Wherever found
No critical habitat has been designated for this species.
https://ecos.fws.gov/ecp/species/i 0477
Piping Plover Charadrius melodus
This species only needs to be considered if the following
condition applies:
Project includes water -related activities and/or use in the N.
Platte, S. Platte, and Laramie River Basins which may affect
listed species in Nebraska.
There is final critical habitat for this species. Your location does
not overlap the critical habitat.
https://ecosiws.gov/ecp_ispeciesi6039
Threatened
https://ipac ecosphere fws gov/location/LNE5CWJ4CVF7TO2167UH5XMZZ4/resources 4/12
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Whooping Crane Grus americana
There is final critical habitat for this species. Your location does
not overlap the critical habitat.
https://ecos.fws.gov/ecp/species/758
Fishes
Endangered
NAME STATUS
Pallid Sturgeon Scaphirhynchus albus
Wherever found
This species only needs to be considered if the following
condition applies:
• Project includes water -related activities and/or use in the N.
Platte, S. Platte, and Laramie River Basins which may affect
listed species in Nebraska.
No critical habitat has been designated for this species.
https://ecos.fws.gov/ecp/species/7162
Insects
Endangered
NAME STATUS
Monarch Butterfly Danaus plexippus
Wherever found
No critical habitat has been designated for this species.
https://ecos.fws.gov/ecp/species/9743
Flowering Plants
NAME
Ute Ladies' -tresses Spiranthes diluvialis
Wherever found
No critical habitat has been designated for this species.
https://ecos.fws.goviecpispecies/2159
Western Prairie Fringed Orchid Platanthera praeclara
Wherever found
No critical habitat has been designated for this species.
https://ecos.fws.gov/ecpa. ecies11 69
Candidate
STATUS
Threatened
Threatened
https://ipac.ecosphere.fws.gov/lovation/LNE5CWJ4CVF7Ta2167UH5XMZZ4/resources 5/12
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Critical habitats
Potential effects to critical habitat(s) in this location must be analyzed along with the
endangered species themselves.
There are no critical habitats at this location.
Migratory birds
Certain birds are protected under the Migratory Bird Treaty Acts and the Bald and Golden
Eagle Protection Acts.
Any person or organization who plans or conducts activities that may result in impacts to
migratory birds, eagles, and their habitats should follow appropriate regulations and
consider implementing appropriate conservation measures, as described below.
1. The Migratory Birds Treaty Act of 1918.
2. The Bald and Golden Eagle Protection Act of 1940.
Additional information can be found using the following links:
• Birds of Conservation Concern https://www.fwsgov/program/migratory-bircs/s.pcies
• Measures for avoiding and minimizing impacts to birds
taps://w w.1ws. o /librarytcollectionslavoiding-and-rninimining-incidental-take-
migratpryabirdds
• Nationwide conservation measures for birds
hti-pc://www fwc grwisitesidefatilt/filesldocuments/nationwide-standard-conservation-
measures.pdf
The birds listed below are birds of particular concern either because they occur on the
USFWS Birds of Conservation Concern (BCC) list or warrant special attention in your
project location. To learn more about the levels of concern for birds on your list and how
this list is generated, see the FAQ below. This is not a list of every bird you may find in this
location, nor a guarantee that every bird on this list will be found in your project area. To see
exact locations of where birders and the general public have sighted birds in and around
your project area, visit the E -bird data mapping tool (Tip: enter your location, desired date
range and a species on your list). For projects that occur off the Atlantic Coast, additional
maps and models detailing the relative occurrence and abundance of bird species on your
list are available. Links to additional information about Atlantic Coast birds, and other
important information about your migratory bird list, including how to properly interpret and
use your migratory bird report, can be found below.
https://ipac.ecosphere.fws gov/location/LNE5CWJ4CVF7TO2I67UH5XMZZ4/resources 6/12
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For guidance on when to schedule activities or implement avoidance and minimization
measures to reduce impacts to migratory birds on your list, click on the PROBABILITY OF
PRESENCE SUMMARY at the top of your list to see when these birds are most likely to be
present and breeding in your project area.
NAME BREEDING SEASON
Bald Eagle Haliaeetus leucocephalus
This is not a Bird of Conservation Concern (BCC) in this area,
but warrants attention because of the Eagle Act or for potential
susceptibilities in offshore areas from certain types of
development or activities.
Chimney Swift Chaetura pelagica
This is a Bird of Conservation Concern (BCC) throughout its
range in the continental USA and Alaska.
Ferruginous Hawk Buteo regalis
This is a Bird of Conservation Concern (BCC) only in particular
Bird Conservation Regions (BCRs) in the continental USA
https.//ecos.fws.gov/ecp/species/6038
Lesser Yellowlegs Tringa flavipes
This is a Bird of Conservation Concern (BCC) throughout its
range in the continental USA and Alaska.
h taps://ecos.fws.gov/ecp/species/9679
Probability of Presence Summary
Breeds Oct 15 to Jul 31
Breeds Mar 15 to Aug 25
Breeds Mar 15 to Aug 15
Breeds elsewhere
The graphs below provide our best understanding of when birds of concern are most likely
to be present in your project area. This information can be used to tailor and schedule your
project activities to avoid or minimize impacts to birds. Please make sure you read and
understand the FAQ "Proper Interpretation and Use of Your Migratory Bird Report" before
using or attempting to interpret this report.
Probability of Presence ( )
Each green bar represents the bird's relative probability of presence in the 10km grid cell(s)
your project overlaps during a particular week of the year. (A year is represented as 12 4 -
week months.) A taller bar indicates a higher probability of species presence. The survey
effort (see below) can be used to establish a level of confidence in the presence score. One
can have higher confidence in the presence score if the corresponding survey effort is also
high.
How is the probability of presence score calculated? The calculation is done in three steps:
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1. The probability of presence for each week is calculated as the number of survey events in
the week where the species was detected divided by the total number of survey events
for that week. For example, if in week 12 there were 20 survey events and the Spotted
Towhee was found in 5 of them, the probability of presence of the Spotted Towhee in
week 12 is 0.25.
2. To properly present the pattern of presence across the year, the relative probability of
presence is calculated. This is the probability of presence divided by the maximum
probability of presence across all weeks. For example, imagine the probability of
presence in week 20 for the Spotted Towhee is 0.05, and that the probability of presence
at week 12 (0.25) is the maximum of any week of the year. The relative probability of
presence on week 12 is 0.25/0.25 = 1; at week 20 it is 0.05/0.25 = 0.2.
3. The relative probability of presence calculated in the previous step undergoes a statistical
conversion so that all possible values fall between 0 and 10, inclusive. This is the
probability of presence score.
To see a bar's probability of presence score, simply hover your mouse cursor over the bar.
Breeding Season ( )
Yellow bars denote a very liberal estimate of the time -frame inside which the bird breeds
across its entire range. If there are no yellow bars shown for a bird, it does not breed in your
project area.
Survey Effort (I)
Vertical black lines superimposed on probability of presence bars indicate the number of
surveys performed for that species in the 10km grid cells) your project area overlaps, The
number of surveys is expressed as a range, for example, 33 to 64 surveys.
To see a bar's survey effort range, simply hover your mouse cursor over the bar.
No Data (—)
A I- �..-I.r having ...r -...-^ ■♦ iL ra. a i•,A..a - A r.1V\//1\P events for Tk'-Y+ lA//i/1I
A week IS r i Icir ked as I IdVII 1�, 1 1V data I I LI ier C VVCr C r ro sur VCy ever ILs for Lr rDL VVCCra.
SurveyTimeframe
Surveys from only the last 10 years are used in order to ensure delivery of currently relevant
information. The exception to this is areas off the Atlantic coast, where bird returns are
based on all years of available data, since data in these areas is currently much more sparse.
SPECIES
Bald Eagle
Non -BCC
Vulnerable
Chimney Swift
BCC Rangewide
(CON)
DIE
I d_ J
probability of presence
MAR ADD MAY JU UN
I r\1 \ APR I If % 1 LJ
W"
4-
I
M
breeding season I survey effort no data
J1 I
A� r cep ocr NJn
l - I
nEr
I -I
https://ipac.ecosphere fws.gov/location/LNE5CWJ4CVF7TO2I67UH5XMZZ4/resources 8/12
4/20/23, 1:46 PM IPaC: Explore Location resources
Ferruginous
Hawk
BCC - BCR
Lesser
Yellowlegs
BCC Rangewide
(CON)
i
1 I
I I
I
I f
I I
I
I IIII
Tell me more about conservation measures I can implement to avoid or minimize impacts to migratory
birds.
Nationwide Conservation Measures describes measures that can help avoid and minimize impacts to all
birds at any location year round. Implementation of these measures is particularly important when birds
are most likely to occur in the project area. When birds may be breeding in the area, identifying the
locations of any active nests and avoiding their destruction is a very helpful impact minimization measure.
To see when birds are most likely to occur and be breeding in your project area, view the Probability of
Presence Summary. Additional measures or [permits may be advisable depending on the type of activity
you are conducting and the type of infrastructure or bird species present on your project site.
What does IPaC use to generate the list of migratory birds that potentially occur in my specified
location?
The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern .(BCC) and other
species that may warrant special attention in your project location.
The migratory bird list generated for your project is derived from data provided by the Avian Knowledge
Network (AKN). The AKN data is based on a growing collection of survey, banding,_ and citizen science
datasets and is queried and filtered to return a list of those birds reported as occurring in the 10km grid
cell(s) which your project intersects, and that have been identified as warranting special attention because
they are a BCC species in that area, an eagle (Eagle ct requirements may apply), or a species that has a
particular vulnerability to offshore activities or development.
Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area.
It is not representative of all birds that may occur in your project area. To get a list of all birds potentially
present in your project area, please visit the Rapid Avian Information Locto'_(RAIL) Tool.
What does IPaC use to generate the probability of presence graphs for the migratory birds potentially
occurring in my specified location?
The probability of presence graphs associated with your migratory bird list are based on data provided by
the Avian Knowledge Network (AKN). This data is derived from a growing collection of survey, banding, and
citizen science datasets.
Probability of presence data is continuously being updated as new and better information becomes
available. To learn more about how the probability of presence graphs are produced and how to interpret
them, go the Probability of Presence Summary and then click on the "Tell me about these graphs" link.
How do I know if a bird is breeding, wintering or migrating in my area?
https://ipac.ecosphere.fws.gov/location/LNE5CWJ4CVF7TO2I67UH5XMZZ4/resources 9/12
4/20/23, 1:46 PM IPaC: Explore Location resources
To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering,
migrating or year-round), you may query your location using the RAIL Tool and look at the range maps
provided for birds in your area at the bottom of the profiles provided for each bird in your results. If a bird
on your migratory bird species list has a breeding season associated with it, if that bird does occur in your
project area, there may be nests present at some point within the timeframe specified. If "Breeds
elsewhere" is indicated, then the bird likely does not breed in your project area.
What are the levels of concern for migratory birds?
Migratory birds delivered through IPaC fall into the following distinct categories of concern:
1. "BCC Rangewide" birds are Birds or cot.bet -vatiorn Concern (BCC) that are of concern throughout their
range anywhere within the USA (including Hawaii, the Pacific Islands, Puerto Rico, and the Virgin
Islands);
2. "BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in
the continental USA; and
3. "Non -BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either
because of the Eagle Act requirements (for eagles) or (for non -eagles) potential susceptibilities in
offshore areas from certain types of development or activities (e.g. offshore energy development or
longline fishing).
Although it is important to try to avoid and minimize impacts to all birds, efforts should be made, in
particular, to avoid and minimize impacts to the birds on this list, especially eagles and BCC species of
rangewide concern. For more information on conservation measures you can implement to help avoid and
minimize migratory bird impacts and requirements for eagles, please see the FAQs for these topics.
Details about birds that are potentially affected by offshore projects
For additional details about the relative occurrence and abundance of both individual bird species and
groups of bird species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data
Portal. The Portal also offers data and information about other taxa besides birds that may be helpful to
you in your project review. Alternately, you may download the bird model results files underlying the portal
maps through the NOM NCCOS Integrative Statistical Modeling and Predictive _/' apping of Marine Bird
nistrihutions and Abundance on the Atlantic Outer Continental Shelf project webpage.
Bird tracking data can also provide additional details about occurrence and habitat use throughout the
year, including migration. Models relying on survey data may not include this information. For additional
information on marine bird tracking data, see the Diving Bird Study and the nanotag studies or contact
Caleb Spiegel or Pr=y Loring.
What if I have eagles on my list?
If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid violating
the Eagle Act should such impacts occur.
Proper Interpretation and Use of Your Migratory Bird Report
The migratory bird list generated is not a list of all birds in your project area, only a subset of birds of
priority concern. To learn more about how your list is generated, and see options for identifying what
other birds may be in your project area, please see the FAQ "What does IPaC use to generate the migratory
birds potentially occurring in my specified location". Please be aware this report provides the "probability
https://ipac.ecosphere.fws.gov/location/LNE5CWJ4CVF7TO2167UH5XMZZ4/resources 10/12
4/20/23, 1:46 PM IPaC: Explore Location resources
of presence" of birds within the 10 km grid cell(s) that overlap your project; not your exact project
footprint. On the graphs provided, please also look carefully at the survey effort (indicated by the black
vertical bar) and for the existence of the "no data" indicator (a red horizontal bar). A high survey effort is
the key component. If the survey effort is high, then the probability of presence score can be viewed as
more dependable. In contrast, a low survey effort bar or no data bar means a lack of data and, therefore, a
lack of certainty about presence of the species. This list is not perfect; it is simply a starting point for
identifying what birds of concern have the potential to be in your project area, when they might be there,
and if they might be breeding (which means nests might be present). The list helps you know what to look
for to confirm presence, and helps guide you in knowing when to implement conservation measures to
avoid or minimize potential impacts from your project activities, should presence be confirmed. To learn
more about conservation measures, visit the FAQ "Tell me about conservation measures I can implement
to avoid or minimize impacts to migratory birds" at the bottom of your migratory bird trust resources
page.
Facilities
National Wildlife Refuge lands
Any activity proposed on lands managed by the Nation.lWildlife Refuge system must
undergo a 'Compatibility Determination' conducted by the Refuge. Please contact the
individual Refuges to discuss any questions or concerns.
There are no refuge lands at this location.
Fish hatcheries
There are no fish hatcheries at this location.
Wetlands in the National Wetlands Inventory
(NWI)
Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under
Section 404 of the Clean Water Act, or other State/Federal statutes.
For more information please contact the Regulatory Program of the local U.S. Army Corps of
Engineers District.
https://ipac.ecosphere,fws.gov/location/LNE5CWJ4CVF7TO2167UH5XMZZ4!resources 11/12
4/20/23, 1:46 PM IPaC: Explore Location resources
Wetland information is not available at this time
This can happen when the National Wetlands Inventory (NWI) map service is unavailable, or
for very large projects that intersect many wetland areas. Try again, or visit the NWI map to
view wetlands at this location.
Data limitations
The Service's objective of mapping wetlands and deepwater habitats is to produce reconnaissance level
information on the location, type and size of these resources. The maps are prepared from the analysis of
high altitude imagery. Wetlands are identified based on vegetation, visible hydrology and geography. A
margin of error is inherent in the use of imagery; thus, detailed on -the -ground inspection of any particular
site may result in revision of the wetland boundaries or classification established through image analysis.
The accuracy of image interpretation depends on the quality of the imagery, the experience of the image
analysts, the amount and quality of the collateral data and the amount of ground truth verification work
conducted. Metadata should be consulted to determine the date of the source imagery used and any
mapping problems.
Wetlands or other mapped features may have changed since the date of the imagery or field work. There
may be occasional differences in polygon boundaries or classifications between the information depicted
on the map and the actual conditions on site.
Data exclusions
Certain wetland habitats are excluded from the National mapping program because of the limitations of
aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or
submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and
nearshore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also
been excluded trom the inventory. I hese habitats, because of their depth, go undetected by aerial
imagery.
Data precautions
Federal, state, and local regulatory agencies with jurisdiction over wetlands may define and describe
wetlands in a different manner than that used in this inventory. There is no attempt, in either the design or
products of this inventory, to define the limits of proprietary jurisdiction of any Federal, state, or local
government or to establish the geographical scope of the regulatory programs of government agencies.
Persons intending to engage in activities involving modifications within or adjacent to wetland areas should
seek the advice of appropriate Federal, state, or local agencies concerning specified agency regulatory
programs and proprietary jurisdictions that may affect such activities.
https://ipac ecosphere.fws.gov/location/LNE5CWJ4CVF7TO2I67UH5XMZZ4/resources 12/12
6/20/23, 11:38 AM
STATE OF
COLORADO
State co us Executive Branch Mail - Notice of Complete Application for Permit: M2004051 Revision: AM1
Exhibit H-2
Hays - DNR, Peter <peter.hays@state.co.us>
Notice of Complete Application for Permit: M2004051 Revision: AMI
Hamous-Miller - DNR, Lexi <lexi.hamous-miller@state.co.us> Tue, Jun 20, 2023 at 10:57 AM
To: Peter Hays - DNR <peter.hays@state.co.us>
Cc: "Marette - DNR, Brandon" <brandon.marette@state.co.us>, Chris Mettenbrink - DNR <chris.mettenbrink@state.co.us>
Hello Peter,
My name is Lexi Hamous, I am the new Land Use Coordinator for the Northeast Region. Please send future DRMS
requests to me (and cc Brandon if possible).
After our review of the project Wattenberg Lakes - File No. M-2004-051, Holcim - WCR, Inc. Amendment Application (AM -
1), and what it entails, below are recommendations that Colorado Parks and Wildlife has in regard to the implementation
of this project.
1. Project is within .25 mile of BE Nest, we recommend confirming that there are no eaglets on the nest after 7/31
2. Project is within .5 mile of BE roost site, we recommend avoiding work between 11/15 to 3/15
3. Project is near Aquatic Native Species Conservation Waters, we recommend NSO/NGD (year-round) within 500
feet of the Ordinary High Water Mark of the stream and 0.5 -mile from Ordinary High Water Mark of the lake
If any questions arise, feel free to contact me at Lexi.Hamous-Miller@state.co.us or my phone number 303-916-2987
Have a great rest of your day
-Stay Wild,
Lexi Hamous (She/Her)
Northeast Region Land Use Coordinator
LIVE LIFE
OUTSIDE
6060 Broadway, Denver, CO 80216
303-916-2987
Lexi,Hamous-Miller@state.co.us
CPW's Energy Webpage
II
D
You
3
[Quoted text hidden]
FM
fe42a20d-e017-447c-aaf2-07e1 b0f3bc79.pdf
59K
https://mail.google.com/mail/u/0/?ik=8e52a072bb&view=pt&search=all&permmsgid=msg-f: 1769241566660159666&simpl=msg-f:17692415666601596... 1/1
Exhibit H-3
TETRA TECH
Memo
To: Wyatt Webster, Environmental and Land Manager
From: Alecia Phillips, Senior Environmental Planner
Cc: Fred Charles, Senior Engineering Manager
Date: 2/2/2024
Subject: Wattenberg Lakes -1/30/2024 Coordination Call Record with Colorado Parks and Wildlife
1.0 ATTENDANCE
• Lexi Hamous-Miller, Northeast Region Land Use Coordinator, Colorado Parks and Wildlife (CPW)
• Wyatt Webster, Environmental and Land Manager, Holcim-WCR, Inc.
• Fred Charles, Senior Engineering Manager, Tetra Tech
• Alecia Phillips, Senior Environmental Planner, Tetra Tech
2.0 BACKGROUND
Tetra Tech requested the meeting to review CPW recommendations associated with proposed (ongoing)
mining activity at the Wattenberg Lakes Mine (Project) under Colorado Division of Reclamation, Mining and
Safety (DRMS) Permit M2004051. CPW issued updated recommendations for the Project in June 2023, initiated
by the DRMS Permit amendment comment referral process. Holcim worked with Tetra Tech to incorporate
the applicable recommendations into 2023 environmental monitoring efforts at the Project site, including
monitoring of active and inactive eagle nests in the Project vicinity. Those monitoring efforts confirmed that
there is an active bald eagle nest located north of the Project boundary (Figure 1, Nest 1) and that the tormer
nest of this breeding pair that is located within the Project boundary was not used by nesting eagles or other
rantnr cnpripc in 7(73 (Figure 1; Nest 2).
With additional mining activity planned for 2024, Tetra Tech requested the call with CPW to better understand
the 2023 recommendations and their ongoing applicability to the Project.
3.0 CALL SUMMARY
Tetra Tech, Holcim and CPW discussed the following CPW conservation recommendations that were provided
in response to the DRMS permit amendment:
1. Project is within .25 mile of BE Nest, we recommend confirming that there are no eaglets on the nest
after 7/31
2. Project is within .5 mile of BE roost site, we recommend avoiding work between 11/15 to 3/15
3. Project is near Aquatic Native Species Conservation Waters, we recommend NSO/NGD (year-round)
within 500feet of the Ordinary High Water Mark of the stream and 0.5 -mile from Ordinary High Water
Mark of the lake
Tetra Tech Inc.
1560 Broadway, Suite 1400 I Denver, CO 80202
Tel +1.303.291.6260 I tetratech.com
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Wattenberg Boundary
- Future Slurry Wall
Current Slurry Wall
Unlined Pond
O Known Raptor Nests
1
TETRA TECH
www_tetratech corn
351 Coffman Street, Suite 200
Longmont, Colorado 80501
Tel: (303) 772-5282
Company
HOLCIM-WCR, INC.
WATTENBERG LAKES AREA RAPTOR NESTS
Weld County, CO
Project No : 117-7110001
Date: FEBRUARY 13, 2024
Designed By: AKC
Figure No
H-1
J
Page 2
For recommendations #1 and #2, Tetra Tech, Holcim and CPW reviewed the current active eagle nest and
roost locations near the Project using CPW's Species Activity Mapping online daLa (CPW 2024) dud confirmed
that the active nest and roost site are greater than 0.5 miles from the Project boundary (Figure 1, yellow
project boundary). Based on this, CPW confirmed that Holcim would not need to monitor the active nest going
forward and that CPW's recommendation #2 regarding proximity to a roost location does not apply to the
Project. CPW did request that Holcim continue to monitor the inactive eagle nest (Figure 1, Nest 2) at the
Project during the nesting season for raptors (generally beginning of December through end of July for bald
eagle; beginning of February through end of July for other raptor species [CPW 2020]) through the start of
construction. CPW recommended checking the nest at least once per month until construction begins and to
coordinate with CPW on additional actions should the nest be observed active prior to the start of
construction. If the nest remains inactive at the start of construction, additional nest monitoring would not be
needed.
For recommendation #3, Tetra Tech requested clarification on the bodies of water that the recommendation
applies to. CPW clarified that the South Platte River is the "stream" and "lake" this recommendation refers to.
Tetra Tech explained that the Project is anticipated to impact areas within 0.5 -mile of the South Platte River
and that erosion, sediment and stormwater control best management practices (BMPs) would be used at the
site to maintain water quality and meet State water quality requirements. CPW was satisfied with this
approach of utilizing BMPs within 0.5 -mile of the South Platte River. No additional conservation
recommendations were discussed.
4.0 REFERENCES
CPW (Colorado Parks and Wildlife). 2020. Recommended Buffer Zones and Seasonal Restrictions for Colorado
Raptors. Accessed January 30, 2024 at
Fitt : j /c w.slat,. cr'..ii5JD+nOimenl-s; Wiidlif€
ileiRaptor-Buffer-+ uiieline .pdf
CPW. 2024. Species Activity Mapping Application. Accessed online on January 30, 2024 at:
https:// wwi rSra tillieleg nci incle ,html?a id=b3e114c17e98481,c85196 3b0
2e91250
TETRA TECH
'u Jattenberg Lakes Amendment, Exhibit L — Reclamation Costs
March 2024
EXHIBIT L - RECLAMATION COSTS
The entirety of operations covered under this permit amendment, including the small amount of mining required
along with reclamation of all disturbed areas, are estimated for reclamation costs. The table below represents the
estimated cost for DRMS to reclaim the Wattenberg Lakes mine.
WATTENBERG DRMS PERMIT AMENDMENT - RECLAMATION COSTS
ITEM
UNIT
UNIT
COST
UNITS
#
of
TOTAL
COST
Earthmoving
and
Revegetation
Excavation
(overburden
&
and
hauling
of
growth
remaining
medium)
material
Cubic Yards
$3.25
I 900,000
$2,925,000
Earthwork
Pond
1
(to
to
achieve
build
up
offset
the
south
from
side
road)
of
Cubic
Yards
$5.00
21,300
$106,500
"
Backfill
reclamation
placement/grading
grades
to
achieve
Cubic
Yards
$5.00
114,000
$570,000
Rip/grade
(after
done
access
hauling)
road
to
be reclaimed
Acre
$2,445
1.1
$2,690
Growth medium
placement/rough grading
Cubic Yards
$2.30
56,100
$129,030
Fine grading
Acre
$3,800
69.6
$264,480
Upland seeding
Acre
$3,115
22.9
$71,334
Wetland
seeding
Acre
$6,500
36.7
$238,550
Mulching
Acre
$2,100
69.6
$146,160
Cottonwood
operations
plant
material
and
planting
Acre
$20,900
10.0
$209,000
Weed
control
Acre
$160
7.0
$1,114
Dewatering
and Pond 1 Development
Dewatering,
pond
and
northwest
Pond 1
existing unnamed
j
Lump
Sum
$30,000
1
$30,000
Design,
slurry
construction,
wall/underdrain
and
installation
related
tasks
- Pond
for
1
Lump
Sum1
$3,704,750
1
$3,704,750
Reclamation
slope grading - Pond 1
Acre
$1,000
11.8
$11,800
Reservoir
bottom grading
-
Pond 1
Lump Sum
$10,000
1
$10,000
TOTAL DIRECT
RECLAMATION
COSTS
$8,420,413
Overhead
& Profit
Public
Liability
Insurance
0.0155
$130,516
Contractor
Performance
Bond
0.0155
$130,516
}
Contractor Profit
0.1000
$842,041
DRMS
Project
Administration
Expense
0.0500
$421,021
TOTAL
INDIRECT
RECLAMATION
COST
$1,524,095
TOTAL
PERFORMANCE BOND AMOUNT
$9,944,508
1A detailed breakdown is provided in the following table.
lb
TETRA TECH
Page 112
Wattenberg Lakes Amendment, Exhibit L — Reclamation Costs
March 2024
DETAILED BREAKDOWN OF SLURRY WALL/UNDERDRAIN COST
UNIT
COST
ITEM
UNIT
#OF
UNITS
TOTAL
COST
Slurry
Wall
Estimated Cost
Mobilization/Demobilization
Slurry Wall
Sub.
I
Lump
Sum �
$375,000
1
$375,000
Construct
Slurry Wall
Work Platform
Cubic
Yards
$2.75
30,000
$82,500
Supplemental
Fines
Material
Cubic
Yards
$2.75
27,000
$74,250
Slurry
Wall
Const. (6400'x40')
Square
Ft
$8.95
230,000
$2,058,500
Keyway Construction
v v
(10'Wx5'D)
Cubic
Yards
I $4.50
18,000
$81,000
Mounding
Underdrain
Pipe
Feet
$75
6,000
$450,000
90 -Day
Leak
Test
Lump
Sum
$155,000
1
$155,000
Geotechnical
l
Investigation
Lump
Sum
$63,500
1
$63,500
Slurry
Wall/Underdrain
Engineering
Design
Lump
Sum
$365,000
1
$365,000
TOTAL
$ 3,704,750
O
TETRA TECH
Page 212
Wattenberg Lakes Amendment, Exhibit S — Permanent Man -Made Structures
March 2024
i
EXHIBIT S - PERMANENT MAN-MADE STRUCTURES
The fully executed structure agreements, for those structure owners who replied to the mailings, are attached to
this exhibit.
TETRA TECH
Page 1 11
STRUCTURE AGREEMENT
This letter has been provided to you as the owner of a sir ucture on or within 200 feet of a proposed mine site,
The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining
operation may adversely affect the stability of any significant, valuable and permanent man-made structure
located within 200 feet of the affected land, the Applicant shall either:
a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the
structure, that the Applicant is to provide compensation for any damages to the structure; or
b) Where an agreement cannot be reached, the Applicant shall provide an appropriate engineering
evaluation that demonstrates that such structure shall not be damaged by activities occurring at the
mining operation; or
c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the
owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative
effect" on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule
6.3.12 and Rule 6.4.20)
The Colorado Mined Land Reclamation Board ("Board has determined that this form, if properly executed,
represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. 34-
32.5-115(4)(e) and with Hard Rock/ Metal Mining Rule 6.3.12(a), Rule 6.4,20(a), and CRS. 34-32-115(4)(d). This
form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board
or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any
enforcement obligations in the Bawd or the Division.
The following structures are located on or within 200 feet of the proposed affected area:
1. I rri9ation Ditch (101)
2. Well (Wi2fl
3.
4.
5.
6.
7. -
8.
CERTIFICATION
The Applicant, Holcim-VVCR, Inc., represented by Kevin Peart as Senior Vice President, does hereby certify that
Asphalt Paving Co (structure owner) shall be compensated for any damage from the proposed mining operation
to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit
A, of the Reclamation Permit Application for Wattenberg Lakes Mine.
This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the
Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land
Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this
form shall result in voiding this form.
NOTARY FOR PERMIT APPLICANT
ACKNOWLEGED BY:
Applicant: Holcim-VVCR, Inc. Representative Name: Kevin Peart
Date:/72717"9 3
STATE OF Colorado)
) ss.
1
ft -
The foregoing was acknowledged before me this day of40,trkilittqo 7*by
Title: Senior Vice President
Kevin Peart as Senior Vice President of Holcim-WCR, Inc.
Notary Public
KAREN ROMERO
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20174016896
MY COMMISSION EXPIRES APRIL 18, 2025
My Commission Expires: ��S
2
N A Y F uci E OWNER
ACKNOWLEGED BY.
Apktir rittlk coo
1-20„.4
Structure Own
r
Date: )
STATE OF
61:4
rn�
SS.
COUNTY oK3t-firal.a
The foregoing was acknowledged before me thisrt day of
da('krcizAcia— as Wcau-jt na.Cf-✓ of
Title:
TERESE VIRGINIA LOMBARD
Notary Public
State of Colorado
Notary 1O #20194005945
My Commission Ex Tres 02,12-2027
Z��w 4i%^ -
My Commission Expires:
3
,2GSby
1D-haoxii
'PM- COW- ciChrt.‘
STRUCTURE AGREEMENT
This letter has been provided to you as the owner of a structure on or within 200 feet of a proposed mine site.
The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining
operation may adversely affect the stability of any significant, valuable and permanent man-made structure
located within 200 feet of the affected land, the Applicant shall either
a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the
structure, that the Applicant is to provide compensation for any damages to the structure; or
b) Where an agreement cannot be reached, the Applicant shall provide an appropriate engineering
evaluation that demonstrates that such structure shall not be damaged by activities occurring at the
mining operation; or
c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the
owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative
effects on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule
6.3.12 and Rule 6.4.20)
The Colorado Mined Land Reclamation Board (Board") has determined that this form, if properly executed,
represents an agreement that compiles with Construction Materials Rule 6.3,122aa, Rule 6.4.19(a), and C.R.S. 34-
32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6A: 20(a), and CR.. 34-32-115(4)(d) This
form is for the sole purpose of onsurrng compliance with the Rules and Regulations and shall not make the Board
or Division a necessary party to any private civil lawsuit to enforce the terms of the agteement or create any
enforcement obligations in the Board or the Division.
The following structures are located on or within 200 feet of the proposed affected area:
1. Brighton Ditch (5j1)_____
2. Ditch Easement
3.
4.
5.
6.
7.
8.
CERTIFICATION
The Applicant, HoIcirni-WGR, Inc„ represented by Kevin Peart as Senior Vice President, does hereby certify that
Brighton Ditch Company (structure owner) shall be compensated for any damage from the proposed mining
oper
ation to the above listed structure(s) located on or within 200 feet of the proposed affected area described
within Exhibit A, of the Reclamation Permit Application for Wallenbera Lakes Mine.
This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the
Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land
Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this
form shall result in voiding this form.
NOTARY FOR PERMIT APPLICANT
Kleaseis.s
ACKNOWLEGED BY:
Applicant: Holcim-WCR1 Inc. Representative Name: Kevin Peart
Date: 1 /1- Se /2a -S
STATE OF Colorado)
COUNTY OF
) ss,
The foregoing was acknowledged before me this
Title: Senior Vice President
�y o
gvirj Pa, as Senior Vice President of Holcim•WCR, Inc.
Notary Public
KAREN ROMERO
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20174016896
MY COMMISSION EXPIRES APRIL 18, 2025
My Commission Expires: 40 4_5-
2
ACKNOWLEGED BY:
Structure Owner $[48
Date: 91 t2423
STATE OF col'ormck
i
ss-
COUNTY OF
The foregoing was acknowledged before me thid42) day of
NOTARY FOR STRUCTURE OWNER
("WAY
Name: W Yl t•!I M. 3tA):e\
Title: ¶34! ore k-cx
otary Public
zo?3, by
SC ' �� as Se Uf` € karsi 1 � of birk:isknikbrt OtiCi I
My Commission Expires:
STB 'CTURE AGREEMENT
This letter has been provided to you as the owner of a structure on or within 200 feet of a proposed mine site.
The State of Colorado, Division of Reclamation, Mining and Safety ("Division') requires that where a mining
operation may adversely affect the stability of any significant, valuable and permanent man-made structure
located within 200 feet of the affected land, the Applicant shall either.
a) Provide a notarized agreement between the Applicant and the Person(s) having an interest In the
structure, that the Applicant is to provide compensation for any damages to the structure; or
b) Where an agreement cannot be reached, the Applicant shall provide an appropriate engineering
evaluation that demonstrates that such structure shall not be damaged by activities occurring at the
mining operation; or
c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the
owner(s) of the utility that the mining and reclamation activities, as proposed, will have no negative
effect" on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule
6.112 and Rule 6.4, 20)
The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed,
represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R. S. 34-
32.5415(401001 and with Hard Rocl 'Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. 3442-A115(40j f 5(4,104). This
form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board
or Division a necessary pay to any private civil lawsuit to enforce the terms of the agreement or create any
enforcement obligations in the Board or the Division.
The following structures are located on or within 200 feet of the proposed affected area:
1. Storage Buildings C8QJ
2. pencin
3. Entrance Gate _
4. Private Access Road
5,
6.
7.
8.
CERTIFICATION
The Applicant, Holcim-WCR, Inc., represented by Kevin Pearl as Senior Vice President, does hereby certify that
City of Aurora (structure owner) shall be compensated for any damage from the proposed mining operation to the
above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit Al of
the Reclamation Permit Application for Wattenber Lakes Mine,
This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the
Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land
Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this
form shall result in voiding this form.
NOTARY FOR PERMIT APPLICANT
ACKNOWLEGED BY:
Applicant: Holcim-WCR, Inc; Representative Name: Kevin Pearl
Date: I f'r2/
STATE OF Colorado)
) ss.
Title: Senior Vce President
COUNTY OF ' 4.071
The foregoing was acknowledged before me thisPg day of
Kevin Peart as Senior Vice President of Holcim-WCR, Inc.
Notary Public
riltitta
My Commission Expires:
KAREN ROMERO
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20174016896
MY COMMISSION EXPIRESAPRIL 18, 2025
2
202ff by
NOTARY- TRU URE 0
ACKNOW1 EGED BY: GAMALA frek, 'tV I' t-
Stycture Owner ' Of- Mil-OQ\ Name: L\ L W U I% NCI
'�
Title. ika ¢ S cw't-•'�' -c f �. `
Date: 7-$ _ - �...
STATE OF
COUNTY OF
ss.
1' �/�.��
The foregoing was acknowledged before me this�day of !�^ y , 202, by
as
tif,,_ r ski\ of Et Ay of Ace, re-
Alty 6--e‘AL-rch.
Notary Public
My Commission Expires: 2 /.2
ALEXANDER GAGLIARDI
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 202 05206
MV COMMISSION EXPIRES 0210812027
3
STRUCTURE AGREEMENT
This letter has been provided to you as the owner of a structure on or within 200 feet of a proposed mine site.
The State of Colorado, Division of Reclamation, Mining and Safety ("Division') requires that where a mining
operation may adversely affect the stability of any significant, valuable and permanent man-made structure
located within 200 feet of the affected land, the Applicant shall either:
a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the
structure, that the Applicant is to provide compensation for any damages to the structure; or
b) Where an agreement cannot be reached, the Applicant shall provide an appropriate engineering
evaluation that demonstrates that such structure shall not be damaged by activities occurring at the
mining operation; or
c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the
owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative
effect" on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule
6.3.12 and Rule 6.4.20)
The Colorado Mined Land Reclamation Board (Board") has determined that this form, if properly executed,
represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4,19(a), and C R. S. 34-
325-115(4)(e) and with Hard RocklMet al Mining Rule 6.3.12(a), Rule 6.4.2O(a), and C.R.S. 34-432-115(4)(d). This
form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board
or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any
enforcement obligations in the Board or the Division.
The following structures are located on or within 200 feet of the proposed affected area:
1, Oil and Gas Above Ground Equipmen#, Underground Gas and Water Utility Pipelines (81)
2. Private Access Roads 97 98
3, Under round Water Mtilit Pi•aline, Fencing a Private Access Road 99
4. Water Storage Reservoir (114)
5.
6,
7.
8.
Well (W-126)
,1Atir+t Pi ihlir
CERTIFICATION
The Applicant, Holcim-WCR, Inc., represented by Kevin Peart as Senior Vice President does hereby certify that
Consolidated Mutual Water Company (structure owner) shall be compensated for any damage from the proposed
mining operation eration to the above listed structure(s) located on or within 200 feet of the proposed affected area
described within Exhibit A, of the Reclamation Permit Application for V'attenb roc Lakes Mine.
This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the
Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land
Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this
form shall result in voiding this form.
NOTARY FOR PERMIT APPLICANT
ACKNOVVLEOED BY:
Applicant: Holcim-WCRL Inc. Representative Name: Kevin Peart
Date:
Au) /V3
STATE OF Colorado)
) ss.
COUNTY OF
The foregoing was acknowledged before me this, . day o
Kevin ['cart as Senior Vice President of Holcim-WCR, Inc.
Title: Senior Vice President
zit
A
KAREN ROMERO
NOTARY PUBLIC
S TATS OP COLORADO
NOTARY ID 20174016806
MISSION V,Pilisq PPIL vim
-
2023 by
My Commission Expires: .2-625-e
2
NOTARY FOR STRUCTURE OWNER
ADKNOWLEGED BY: Otte, 0 Zerri
Structure Owner: irk Gokre I •A-4 c4J *ram c. I
_ hi i i C :4 J
Date:
Toi-bc. 9 , -24 ) 3
Name:
STATE OF oI arm AiD
ss.
COUNTY oFSeCrers«nt
reersitisie
Title: tct fir, Jen14 - ltd 4 4 Cr tot
Jiwx ei'
The foregoing was acknowledged before me this of S1!_ , 20a, by
Sees StiSott f as ;fie. id E c . if cz_u6_SfltiditoilLkla.'4'y.ts7 7 .
I
otary Public
ornmission Expires: 1110 5' ?dace
3
CAROL GRANTANO
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20184020515
MY COMMISSION EXPIRES MAY 15, 2026
STRUCTURE AGREEMENT
MENT
This letter has been provided to you as the owner of a structure on or within 200 feet of a proposed mine site.
The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining
operation may adversely affect the stability of any significant, valuable and permanent man-made structure
located within 200 feet of the affected land, the Applicant shall either
a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the
structure, that the Applicant is to provide compensation for any damages to the structure; or
b) Where an agreement cannot be reached, the Applicant shall provide an appropriate engineering
evaluation that demonstrates that such structure shall not be damaged by activities occurring at the
mining operation; or
c} Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the
owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative
effect" on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule
6.3.12 and Rule 6, 4.20)
The Colorado Mined Land Reclamation Board (Board") has determined that this form, if properly executed,
represents an agreement that complies with Construction Materials Rule 6,3,12(a), Rule 6.4.19(a), and C.R.S. 4-
32,5415(4)W and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.2 (a), and C.A.S.... 34-32-11 `4)(d). This
form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board
or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any
enforcement obligations in the Board or the Division.
The following structures are located on or within 200 feet of the proposed affected area:
1. Travel/lnaress/Egress Easements 44� , 48 61, 68)
2.
3.
4,
6.
6.
7,
R
CERTIFICATION
The Applicant, Holcim=WCR, Inc., represented by Kevin Peart as Senior Vice President, does hereby certify that
The Crabb Trust (structure owner) shall be compensated for any damage from the proposed mining operation to
the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit
A, of the Reclamation Permit Application for Wattenberg Lakes Mine.
This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the
Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land
Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this
form shall result in voiding this form.
NOTARY FOR PERMIT APPLICANT
ACKNOWLEGED ED BY:
Applicant: Holcim-WCR, Inc. Representative Name: Kevin Peart
Date: 9(741Z-3
STATE OF Colorado)
) ss.
COUNTY OF
Title: Senior Vice President
The foregoing was acknowledged before me this aniay of
Kevin Peart as Senior Vice President of Holcim-WCR, Inc_
fl?1La
Notary Public
77'LQ/L{J'
My Commission Expires:
KAREN ROMERO
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20174016896
SareSSION EXPIRES APRIL 18, 2025
2
20,E by
Notary Public
.
ACKNOWLEGED BY: r #-
NQTARY FOR STRUCTURE OWNER457
Structu
re Owner: r4 a 4 L Name:
Date: 747 ir AV:23-
STATE OF eELf)
} ss.
COUNTY OF Vet.}
en„." / _ came xe441
Title: /; s e
The foregoing was acknowledged before me this day of
irYnii 15 ekialgas Sfre of elfr
My Commission Expires:
2023 by
air 17 28(7
a
ANDREA JEAN MONACO
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20234010425
MY COMMISSION EXPIRES MARCH t7 2027
STRUCTURE AGREEMENT
This letter has been provided to you as the owner of a structure on or within 200 feet of a proposed mine site.
The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining
operation may adversely affect the stability of any significant, valuable and permanent man-made structure
located within 200 feet of the affected land, the Applicant shall either:
a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the
structure, that the Applicant is to provide compensation for any damages to the structure; or
b) Where an agreement cannot be reached, the Applicant shall provide an appropriate engineering
evaluation that demonstrates that such structure shall not be damaged by activities occurring at the
mining operation; or
c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the
owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative
effect" on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule
6.3.12 and Rule 6.4.20)
The Colorado Mined Land Reclamation Board ("Board') has determined that this form, if properly executed,
represer its an agreement that complies with Construction Materials Rule 6.3,12('a), Rule 6.4.19(a), and C. R.S. 34e
32.5.. tl 15(4)(e) and with Hard Rock/Veto! Mining Rule 6, 3. 12(a), Rule 6,4.20(a), and C.R.S. 34-324151'4)W This
form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board
or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any
enforcement obligations in the Board or the Division.
The following structures are located on or within 200 feet of the proposed affected area:
1 Well'(W-125)
2
3.
4.
5.
6.
7.
8.
Notary Public
CERTIFICATION
The Applicant, Holcim-WCRL Inc., represented by Kevin Peart as Senior VicePresident, does hereby certify that
City of Fort Lupton (structure owner) shall be compensated for any damage from the proposed mining operation
to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit
A, of the Reclamation Permit Application for Wattepiberg. Lakes Mine.
This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority tinder the
Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land
Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this
form shall result in voiding this form.
NOTARY FOR PERNDT APPLICANT
ACKNOWLEGED BY:
Applicant: Holcim-WCR, Inc. Representative Name: Kevin Peart
Date:
/z,r/rzy
STATE OF Colorado)
> ss
COUNTY OF
It
Title: Senior Vice President
The foregoing was acknowledged before me this ; $ 'diay o
Kevin Peart as Senior Vice President of Holcim-VUCR, Inc.
(7
x12l��tl�
My Commission Expires:
KAREN PC)MERO
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20174016896 ir
?al's . om i 1=1 N gOlftiO PiPrilL 16 20251
2
NOTARY FOR STRUCTURE OWNER
(117"ACKNOW ACKNOWLEGED BY:
Structure Owner
Date:
STATE OF
COUNTY OF
The foregoing was acknowledged before me thi
O
ft
Name:
) ss.
2-cs \\twd as nakupe
ry
p
Title:
z� t*≥5ord
day of .� r:Q, , 200, by
of CiA1/4-k uF' "'n
Commission Expires: QIN faS
Kaela Friedlan
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID# 20224012111
MY COMMISSION EXPIRES 03/25/2026
STRUCTURE A.+ REEMENT
This letter has been provided to you as the owner of a structure on or within 200 feet of a proposed mine site.
The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining
operation may adversely affect the stability of any significant, valuable and permanent man-made structure
located within 200 feet of the affected land, the Applicant shall either:
a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the
structure, that the Applicant is to provide compensation for any damages to the structure; or
b) Where an agreement cannot be reached, the Applicant shall provide an appropriate engineering
evaluation that demonstrates that such structure shall not be damaged by activities occurring at the
mining operation; or
c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the
owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative
effects' on their utility. (Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule
6.3.12 and Rule 6.4.20)
The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed,
represents an agreement that complies with Construction Materials Rule 5.3.12(a), Rule 6.4.19(a), and C.R.S. 34-
32.50115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. 34-32-115(4%d). This
form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board
or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any
enforcement obligations in tho Board or the Division.
The following structures are located on or within 200 feet of the proposed affected area:
1.
2.
3.
4.
5.
6.
7.
A.
Fencing, Gates, Private Access Road., Irrigation Ditch (65)
ROW (10 5)
Vie .. 0
-'- �, tin;4.c.
CERTIFICATION
The Applicant, Holcim-WCR, Inc., represented by Kevin Peart as Senior Vice President, does hereby certify that
Yoshi and Stmt LLLP (structure owner) shall be compensated for any damage from the proposed mining
operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described
within Exhibit A, of the Reclamation Permit Application for Watterlberg Lakes Mine.
This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the
Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land
Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this
form shall result in voiding this form.
NOTARY FOR PERMIT APPLICANT
ACKNOWLEGED BY:
Applicant: Holcim-WCR, Inc. Representative Name: Kevin Pearl
Date:1/1-See23
STATE OF Colorado)
COUNTY OF
Title: Senior Vice President
) ss
cal The foregoing was acknowledged before me this day of ?pot
of
Kevin Pearl as Senior Vice President of Holcim-WCR, Inc.
kr
anitta
Notary Public
My Commission Expires:
KAREN ROMERO
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20174016896
MY COMM► SION EXPIRES APRIL 16.2025
2
20 by
ft
a
ACKNOWLEGED BY
Structure Owner: just si S 1/42 k . P
Date: G -4_124 a O ,2. 3
STATE OF Orqals.Vthtti
COUNTY OF MAAS )
The foregoing was acknowledged before me this day of
NOTARY -FOR STR OTUR OWNE
Name:
...,'.f c. ,r\a.QL Scth.cck3c
as
Notary Public
r
) ss.
o <
Title:
3u/to , 2023 by
of `'ifu s h\ Salt LOR
My Commission Expires: J Ui3 °Z44 a%41
SHARON K NISHIMOTO
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20074O26026
MY COMMISSION EXPIRES JULY 13.2027
Wattenberg Lakes Mine
RECEIVED
JUN OS 2023
COMMISSIONERS
Regular 112 Operation Reclamation Permit Application
to the Colorado Division of Reclamation, Mining and Safety
M-2004-051 Amendment
Addendum to Application Package after May 18, 2023 Incompleteness Letter from DRMS
June 5, 2023
APPLICANT:
HOLCIM
Holcim - WCR, Inc.
1687 Cole Blvd, Suite 300
Golden, Colorado 80401
REPRESENTED BY:
TETRA TECH
Tetra Tech, Inc.
351 Coffman Street, Suite 200
Longmont, CO 80501
(303) 772-5282
Publ G pev:evJ
O7/10/,23
CC'. PL (TP/t4W / DA/Ko /CA),
pv.) is H /6R/GK/VD/ON)
01/05/23
2023-1877
a
May 18, 2023
COLORADO
Division of Reclamation,
Mining and Safety
Department of Natural Resources
Kevin Peart
Holcim — WCR, Inc.
1687 Cole Blvd, Suite 300
Golden, CO 80401
Re: Holcim — WCR, Inc., Wattenberg Lakes, File No. M-2004-051, Incomplete Submittal of
112 Construction Materials Reclamation Permit Application Package
Mr. Peart,
On May 11, 2023, the Division of Reclamation, Mining and Safety (Division/DRMS) received the
112 Construction Materials Reclamation Permit Amendment Application package from Holcim —
WCR, Inc. for the Wattenberg Lakes site, File No. M-2004-051. Preliminary review of the
information received determined the following items must be received before the Division can
consider the application as being submitted and technical review can begin:
Application Form
1. On Page 1, Item #2 - Operation Name, the Applicant indicated the site name as
"Wattenberg Lakes Mine". The site is currently permitted with the Division as "Wattenberg
Lakes". Please confirm the Applicant intends to rename the site "Wattenberg Lakes Mine".
2. The Division requires the permit application list the exact company name registered with
the Colorado Secretary of State office, "Holcim — WCR, Inc.". Please revise the company
name on Page 3, Item #11 - Applicant/Operator and Inspection Contact sections of the
application form, to indicate "Holcim — WCR, Inc.", instead of "Holcim, WCR — Inc.".
3. Please provide documentation authorizing Tetra Tech, Inc. to act on behalf of Holcim — WCR,
Inc. A signed and notarized letter on company letterhead is adequate documentation.
4. On Page 1, Item #1.1 of the application form, the Applicant indicated the type of organization
as a corporation. Please provide the corporate seal on Page 8 of the application form, if the
corporation does not have a seal please indicate "no seal".
5. The Division requires the Applicant to provide documentation giving the signer, Kevin Peart,
the authority to sign on behalf of the company, Holcim — WCR, Inc. The authorization
document may be in the form of by-laws, resolution, affidavit signed by corporate secretary,
certified secretary statement or a notarized statement on company letterhead.
Physical: 1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106
Mailing: DRMS Room 215, 1001 E 62nd Ave, Denver, CO 80216 https://drms.colorado.gov
Jared S. Polls, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director
Wattenberg Lakes AM1 Incompleteness Letter
Page 2 of 3
May 18, 2023
6.4.3 Exhibit C - Pre -Mining and Mining Plan Maps of Affected Land
6. Rule 6.2.1(2)(b) requires maps to be prepared and signed by a registered land surveyor,
professional engineer, or other qualified person. Please submit a signed copy of the Exhibit
C maps.
7. Rule 6.2.1(2)(c) requires maps indicate the date prepared. Please submit a revised copy of
the Exhibit C maps with the date information.
8. Please revise the Exhibit C maps to indicate the revision type as amendment no. 1 (AM1).
6.4.5 Exhibit F - Reclamation Plan Map
9. Rule 6.2.1(2)(b) requires maps to be prepared and signed by a registered land surveyor,
professional engineer, or other qualified person. Please submit a signed copy of the Exhibit
F map.
10. Rule 6.2.1(2)(c) requires maps indicate the date prepared. Please submit a revised copy of
the Exhibit F map with the date information.
11. Please revise the Exhibit F map to indicate the revision type as amendment no. 1 (AM1).
6.4.16 Exhibit P Municipalities Within Two Miles
12. The Applicant listed the City of Brighton as the only municipality within two (2) miles of the
proposed mine site. Please verify there are no other municipalities located within two (2)
miles of the proposed mine site.
6.4.18 Exhibit R - Proof of Filing with County Clerk and Recorder
13. Please provide an affidavit or receipt indicating the date on which the revised amendment
application information required to address this incompleteness letter was placed with the
Weld County Clerk and Recorder for public review, pursuant to Subparagraph 1.6.2(1)(c).
1.6.2 - Notice Signs
14. The Applicant provided a copy of the notice sign affidavit with the amendment application
pursuant to Rule 1.6.2)1))b). Due to the size of the permit boundary, the Division will require the
Operator to post multiple signs to clearly identify the amendment area. The Division
recommends posting one (1) notice sign at the intersections of and every quarter mile along Weld
County Roads 23 % and 41/2 adjacent to the permit boundary. Please provide a map indicating the
approximate locations of the notice signs.
The application will not be considered submitted until the information listed above is received
and found sufficient to begin our review. A decision date will be established 90 days from the
date of receipt of all of the requested information. Additionally, if you have already published
notice you will need to republish notice, after the Division considers the application
Wattenberg Lakes AM1 Incompleteness Letter
Page 3 of 3
May 18, 2023
submitted. This notice must be published once a week for four (4) consecutive weeks, starting
within ten (10) days of the date your application is considered submitted. We will notify you
when you should initiate republication of your notice. The final date for receiving comments is
the twentieth (20th) day after the fourth publication or the next regular business day.
You have sixty (60) days from the date of this letter to submit all necessary documents the
Office needs for the application to be considered filed. If, at the end of the sixty day period, the
application has not been determined to be filed with the Office, the Office shall deny the
application and terminate the application file.
The response due date is July 17, 2023.
This letter shall not be construed to mean there are no other technical deficiencies in your
application. The Division will review your application to determine whether it is adequate to
meet the requirements of the Act after submittal of all required items.
Peter S. Hays
Environmental Protection Specialist
Ec: Jared Ebert, Division of Reclamation, Mining & Safety
Fred Charles, Tetra Tech, Inc.
STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: (303) 866-3567
FAX: (303) 832-8106
CONSTRUCTION MATERIALS
REGULAR (112) OPERATION
RECLAMATION PERMIT APPLICATION FORM,
COLORADO
DIVISION OF
RECLAMATION
MINING
-&-
SAFETY
CHECK ONE: El There is a File Number Already Assigned to this Operation
Permit # M - - - (Please reference the file number currently assigned to this operation)
a_ New Application (Rule 1.4.5) L_ Amendment Application (Rule 1.10)
Conversion Application (Rule 1.11)
Permit # M - 2004 Q51 (provide for Amendments and Conversions of existing permits)
The application for a Construction Materials Regular 112 Operation Reclamation Permit contains three major parts: (1) the application
form; (2) Exhibits A -S, Addendum 1, any sections of Exhibit 6.5 (Geotechnical Stability Exhibit; and (3) the application fee. When you
submit your application, be sure to include one (1) complete signed and notarized ORIGINAL and one (1) copy of thecompleted
application forth, two (2) copies of Exhibits A -S, Addendum 1, appropriate sections of 6.5 (Geotechnical Stability Exhibit, and a check for
the application fee described under Section (4) below. Exhibits should NOT be bound or in a 3 -ring binder; maps should be folded to
8 1/2" X 11" or 8 1/2" X 14" size. To expedite processing, please provide the information in the format and order described in this form.
GENERAL OPERATION INFORMATION
Type or print clearly, in the space provided, ALL information requested below.
1. Applicant/operator or company name (name to be used on permit): Holcim - WCR, Inc.
1.1 Type of organization (corporation, partnership, etc.): Corporation
2. Operation name (pit, mine or site name): Wattenberg Lakes
3. Permitted acreage (new or existing site):
3.1 Change in acreage (+)
3.2 Total acreage in Permit area
420.8
0
420.8
permitted acres
acres
acres
4. Fees:
4.1 New Application $2,696.00 application fee
4.2 New Quarry Application $3,342.00 quarry application
4.4 Amendment Fee $2,229.00 amendment fee
4.5 Conversion to 112 operation (set by statute) $2,696.00 conversion fee
5. Primary commoditie(s) to be mined: SDG
5.1 Incidental commoditie(s) to be mined: 1. lbs/Tons/yr 2. lbs/Tons/vr
3. / lbs/Tons/vr 4. lbs/Tons/yr 5. lbs/Tons/yr
5.2 Anticipated end use of primary commoditie(s) to be mined: Construction materials
5.3 Anticipated end use of incidental commoditie(s) to be mined: none
-3-
11. Correspondence Information:
APPLICANT/OPERATOR (name, address, and phone of name to be used on permit)
Kevin Peart
Contact's Name:
Company Name:
Street/P.O. Box:
City:
State:
Telephone Number:
Fax Number:
Holcim - WCR, Inc.
Title: Senior Vice President
1687 Cole Blvd, Suite 300
Golden
P.O. Box:
Colorado
(816 ) _ 215-3833
Zip Code: 80401
PERMITTING CONTACT (if different from applicant/operator above)
Fred Charles Title: Senior Engineering Manager
Contact's Name:
Company Name:
Street/P.O. Box:
City:
State:
Telephone Number:
Fax Number:
INSPECTION CONTACT
Contact's Name:
Company Name:
Street/P.O. Box:
City:
State:
Telephone Number:
Fax Number:
Tetra Tech, Inc.
351 Coffman St., Suite 200
Longmont
P.O. Box:
Colorado
Zip Code: 80501
(720 ) _ 864-4504
Wyatt Webster Title: Environmental & Land Manager
Holcim - WCR, Inc.
1687 Cole Blvd, Suite 300
Golden
P.O. Box:
Colorado
Zip Code: 80401
(702 ) _ 379-4623
( )-
CC: STATE OR FEDERAL LANDOWNER (if any)
N.A.
Agency:
Street:
City:
State:
Zip Code:
Telephone Number: ( 1 -
CC: STATE OR FEDERAL LANDOWNER (if any)
N.A.
Agency:
Street:
City:
State: Zip Code:
Telephone Number: ) -
HOLCIM
May 18, 2023
RE: Holcim — WCR, Inc./Tetra Tech, Inc.
Wattenberg Lakes (M-2004-051) DRMS Submission Amendment 1
Mr. Hays,
Tetra Tech, Inc. has contracted with Holcim —WCR, Inc. to complete the Wattenberg Lakes Amendment 1
submission in accordance with the Colorado Division of Reclamation, Mining and Safety guidelines. This
includes preparation, submission, and correspondence throughout the amendment process.
If you have any questions, please feel free to contact me at 702-379-4623.
Sincerely,
Wyatt R. Webster
Environmental & Land Manager
Holcim — WCR, Inc.
State of Or)(17reldD
County of � e 'ir5 cx1
Notary Public:
My Commission Expires: / .1i I S
SARAH GREGA
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20174007757
MY COMMISSION EXPIRES FEBRUARY 21, 202;
Holcim US, 1687 Cole Biod.. Suite 300, Golden, CO 00401
Phone 303-985-1070, oox.hoicim.com
1/1
-8 -
Certification:
As an authorized representative of the applicant, I hereby certify that the operation described has met the minimum
requirements of the following terms and conditions:
1. To the best of my knowledge, all significant, valuable and permanent man-made structure(s) in existence at the time
this application is filed, and located within 200 feet of the proposed affected area have been identified in this application
(Section 34-32.5-115(4)(e), C.R.S.).
2. No mining operation will be located on lands where such operations are prohibited by law
(Section 34-32.5-115(4)(f), C.R.S.;
3. As the applicant/operator, I do not have any extraction/exploration operations in the State of Colorado currently in
violation of the provisions of the Colorado Land Reclamation Act for the Extraction of Construction Materials
(Section 34-32.5-120, C.R.S.) as determined through a Board finding.
4. I understand that statements in the application are being made under penalty of perjury and that false statements
made herein are punishable as a Class 1 misdemeanor pursuant to Section 18-8-503, C.R.S.
This form has been approved by the Mined Land Reclamation Board pursuant to section 34-32.5-112,C.RS, of the Colorado Land
Reclamation Act for the Extraction of Construction Materials Any alteration or modification of this form shall result in voiding any
permit issued on the altered or modified form and subject the operator to cease and desist orders and civil penalties for operating
without a permit pursuant to section 34-32.5-123, C.R.S.
Signed and dated this day of rn
LL.t,nY\ - lA.) , I AC.
Applicant/Operator or C, mpany Name
Signed:
Title:
(1(c<; Pfi (O r
State of W U T ad -O )
If Corporation Attest (Seal)
NO SEAL
Signed:
Corporate Secretary or Equivalent
Town/City/County Clerk
ss.
County of
The foregoing �"instrument was acknowledged before me this day of �1.
aft by ib ,A P + as 12.„1/1 i Uy U: Pio s iit1 m - (AC. C. •
SARAH GREGA
NOTARY PUBLIC
STATE OF COLORADO
NOTARY ID 20174007757
MY COMMISSION EXPIRES FEBRUARY 21. 2025
r
dOak
Notary Public
My Commission expires: a /21 /s5
SIGNATURES MUST BE IN BLUE INK
You must post sufficient Notices at the location of the proposed mine site to clearly identify the site as the location of a
Shelbee L. Hundley
General Counsel, US ACM
Shelbee.hundley@holcim.com
HOLCIM
Secretary's
Certificate
8700 W. Bryn Mawr Ave.
Suite 300N
Chicago, Illinois 60631
Phone 773.372.1061
Fax: 773.442.0289
www.holcim.com/us
I, Shelbee L. Hundley, Corporate Secretary of Holcim — WCR, Inc., a Colorado
corporation (the "Company"), certify that Kevin Peart, as the current Senior Vice President, is
duly authorized to execute contracts, agreements and instruments relating to the Wattenburg
Lakes file, including, but not limited to, permitting matters.
IN WITNESS WHEREOF, I have executed this Secretary's Certificate as of the 5th
day of June, 2023.
Shelbee L. Hundley
Corporate Secretary
State of Illinois)
)ss:
County of Cook)
The undersigned, a Notary Public in and for the above State and County, hereby certifies that
on the 5th day of June, 2023, before me personally appeared Holcim — WCR, Inc. by Shelbee L.
Hundley, its Corporate Secretary and General Counsel, who is known to me as the person
described herein and who executed the foregoing instrument on behalf of said corporation.
In Witness Whereof, I have hereunto set my hand and affixed my official seal on the day and
year last aforesaid.
[SEAL]
I �
NICHAYETTE VIL I
I Official Seal
Notary Public - State of Illinois
I My Commission Expiry Mar 6, 2027 o
Notary Public
1/1
CERTIFICATE OF INCUMBENCY
OF
HOLCIM - WCR, INC.
I hereby certify that I am the duly elected, qualified and presently serving Assistant
Secretary of HOLCIM —WCR, INC., a corporation incorporated under the laws of the State
of Colorado (the "Corporation"). I further attest to and certify that the person listed below
is duly elected and/or appointed to and on the date hereof to hold the office(s) set forth
below opposite her name:
OFFICE TITLE
TITLE SIGNATURE
Shelbee Hundley Secretary
Y'L' "1/
IN WITNESS WHEREOF, I hereto set my hand and affixed the seal of the Corporation
this 5th day of June, 2023.
ROXANN KOZAK
1
2
3
4
5
6
7
5/25/2023 3:04:02 PM - O:\PROJECTS\LONGMONT\71101117-7110001\CAD\SHEETFILES\WATTENBERG RECLAMATtON\EX-C PRE -MINING PLAN MAP.DWG - WEATHERL, LAURA
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WCR 41/2
EXISTING
WETLANDS
EXISTING
WETLANDS
•
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CULVERT ;-.,y
TWO PRODUCING
OIL WELLS
MAINTAIN CURRENT
ROAD/ACCESS TO
2 OIL WELLS
(INCLUDES 20 FT BUFFER
FROM EDGE OF ACCESS)
N PERMANENT
ACCESS ROAD
BRIGHTON DITCH
IY
TEMPORARY STOCKPILE
APPROX LOCATION
EXCAVATE MATERIALS IN THIS I ''
AREA (TEMPORARILY PLACED I I
i1 DURING PREVIOUS MINING) AND
USE WHERE FILL IS REQUIRED I Il�j
FOR RECLAMATION
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EXISTING CONVEYOR
CROSSING (BRIDGE) OVER
THE SOUTH PLATTE RIVER
RIVERBANK STABILIZATION
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MAIN ACCESS
TO MINE SITE
EXISTING CONVEYOR
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PRIOR TO CONSTRUCTING
SLURRY WALL, PLACE FILL ON
SOUTH SIDE OF POND 1 TO CREATE 40 -FT. OFFSET
FROM TOP OF POND SLOPE TO COUNTY ROAD
SLOPE PROTECTION
r
SOUTH PLATTE RIVER
AREA TO BE MINED= 6.2 ACRES
TOTAL PERMIT AREA (AFFECTED AREA) = 420.8 ACRES
4'
4
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CERTIFICATION:
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TETRA TECH
www.tetratech.com
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WELL LOCATION APPROXIMATE
PERMIT BOUNDARY APPROXIMATE
EXISTING WETLANDS
0 150' 300' 600'
SCALE: 1" = 300'
THIS MAP WAS PREPARED BY TETRA TECH IN COOPERATION WITH HOLCIM - WCR, INC.
HOLCIM - WCR, INC. WILL KEEP THE DIVISION OF RECLAMATION, MINING, AND SAFETY
INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH
ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS
AS NECESSARY THROUGHOUT THE LIFE OF THE MINE.
eeA Catith-
5/30/2023
FREDERICK LEE CHARLES, PE
DATE
DESCRIPTION
INITIAL SUBMITTAL
INCOMPLETENESS RESPONSE
M
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THIS DRAWING WAS PREPARED BASED ON AVAILABLE TITLE COMMITMENT,
COUNTY, AND SITE INFORMATION FOR THE PURPOSES OF IDENTIFYING
STRUCTURES WITHIN THE PERMIT AREA AND WITHIN A 200 -FOOT BUFFER
OUTSIDE THE PERMIT AREA. ANY WORK IN THE AREA SHALL REQUIRE
SITE -SPECIFIC IDENTIFICATION AND MARKING OF UTILITIES IMMEDIATELY
PRIOR TO THE WORK. TETRA TECH IS NOT RESPONSIBLE FOR THE
ACCURACY, NOR FOR ERRORS OR OMISSIONS, RELATED TO THE LOCATION
AND DETAILS OF ANY UNDERGROUND UTILITIES OR OTHER STRUCTURES.
THIS MAP WAS PREPARED BY TETRA TECH IN COOPERATION WITH HOLCIM - WCR, INC.
HOLCIM - WCR, INC. WILL KEEP THE DIVISION OF RECLAMATION, MINING, AND SAFETY
INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH
ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS
AS NECESSARY THROUGHOUT THE LIFE OF THE MINE.
Bar Measures 1 inch, otherwise drawing not to scale
Copyright: Tetra Tech
5/25/2023 2:59:03 PM - O:\PROJECTS\LONGMONT\71101117-7110001\CAD\SHEETFILES\WATTENBERG RECLAMATION\EXISTING CONDITIONS.DWG - WEATHERL, LAURA
E
D
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A
351 Coffman Street, Suite 200
Longmont, Colorado 80501
Phone; (720) 864-4507
Structure ID
Structure Description
Owner
Approximate Centerline of the Denver, Laramie and
111
Pipeline Easement
Kerr McGee Oil & Gas Onshore LP
1
Overhead Utilities
Western Area Power Administration
71
Northwesterly Railway Company
City of Westminster
112
Weld County Road 4 1/2
Weld County Public Works Department
2
Gas Pipeline Easement
Public Service Company of Colorado (PSCO)
72
Unknown Structure
City of Westminster
113
Oil/Gas Structures
Kerr McGee Oil & Gas Onshore LP
TETRA T1
www.teti
3
Oil/Gas Structures
City of Westminster
73
Unknown Structure
City of Westminster
114
Water Storage Reservoir
Consolidated Mutual Water Company
4
Overhead Utilities
Xcel Energy
74
Approximate Location of 100' Denver, Laramie, and
Northwestern Railway Company
City of Westminster
W-120
Well MW 1
( )
Aggregate Industries WCR INC
5
Culvert
City of Westminster
75
60' ROW
City of Westminster
W-121
Well
Asphalt Paving Co.
6
Fence
City of Westminster
76
Road Sign
Weld County Public Works Department
W-122
Well
Aggregate Industries WCR INC
7
Overhead Utilities
United Power, Inc.
77
Pipe
City of Westminster
W-123
Well (MW -2)
Aggregate Industries WCR INC
8
Fence
City of Westminster
78
50' Gas Easement
Coors Energy Company
W-124
Well
City of Westminister
9
Conveyor
Holcim - WCR, Inc.
79
Farmstead
Toby L Struck
W-125
Well
City of Fort Lupton
10
Pipe
City of Westminster
Storage Buildings, Fencing, Entrance Gate, Private
W-126
Well
Consolidated Mutual Water Company
11
16' Electric Easement
United Power, Inc.
80
Access Road, South Platte River
City of Aurora
W-127
Well
Patrick Broda
12
10' Electric Easement
United Power, Inc.
81
Oil and Gas Above Ground Equipment
Consolidated Mutual Water Company
W-128
Well (MW -4)
Aggregate Industries WCR INC
13
Electric Easement
United Power, Inc.
81
Underground Gas Pipeline
Consolidated Mutual Water Company
W-129
Well
Gary Huber
14
Culvert
City of Westminster
81
Underground Water Utility Pipeline
Consolidated Mutual Water Company
W-130
Well
Gary Huber
15
Overhead Utilities
United Power, Inc.
Single Family Home, Deck/Gazebo, Detached Garage,
VV -131
Well (MW -8)
Aggregate Industries WCR INC
16
10' Electric Easement
United Power, Inc.
82
Fencing, Private Concrete Driveway
Jonathan Royce Monroe & Tobbi Jean Monroe
W-132
Well
Sakata Farms
17
Overhead Utilities
United Power, Inc.
82
Electric Transmission Line (local)
Jonathan Royce Monroe & Tobbi Jean Monroe
W-133
Well
Sakata Farms
18
Oil/Gas Structures
KP Kauffman Company Inc.
83
Garage, Fencing
Kenneth J Jones Sr
W-13
Well (MW -7)
Aggregate Industries WCR INC
19
Gate/Sign
Kerr McGee Oil & Gas Onshore LP
83
Electric Transmission Line (local)
Kenneth J Jones Sr
W-135
Well
City of Westminister
20
Road
Weld County Public Works Department
84
Single Family Home, Quonset Hut, Garage, (2) Storage
Buildings, Fencing, Entrance Gates
Ron L Gartrell
W-136
Well
City of Westminister
21
Fence
City of Westminster
84
Electric Transmission Line (local)
Ron L Gartrell
VV -137
Well (MW -5)
Aggregate Industries WCR INC
Pump and Underground Power up Transformers 17455 &
85
Fencing, Entrance Gates, Private Dirt Access Road
Yoshi Suzu LLLP
W-138
Well (MW -3)
Aggregate Industries WCR INC
22
17433
PDC Energy Inc.
and
Transformer
85Yoshi
Irrigation Ditch
Suzu LLLP
W 139
Well (MW -6)
Aggregate Industries WCR INC
23
Tank Battery - 3 Tanks, Separator up
PDC Energy Inc.
and
24
Fence
City of Westminster
85
Underground Oil & Gas Pipeline
Kerr McGee Oil & Gas Onshore LP
25
Ditch
City of Westminster
85
Underground Oil & Gas Pipeline
PDC Energy Inc.
26
Oil and Gas Equipment
Kerr McGee Oil & Gas Onshore LP
85
Oil and Gas Above Ground Equipment
Kerr McGee Oil & Gas Onshore LP
27
Fence
City of Westminster
Single Family Home,Single Family Mobile Home, Storage
Building, Barn, Fencing, Entrance Gates
Tina Lynch & Daniel William Johnson
86
28
Oil/Gas Structure
Kerr McGee Oil & Gas Onshore LP
United Power, Inc.
86
Electric Transmission Line
29
Oil and Gas Infrastructure
Kerr McGee Oil & Gas Onshore LP
Oil Gas Above Ground Equipment
Pipe
City Westminster
87Hector
and
Alfonso Faudoa
30
of
Underground Oil Gas Pipeline
City Westminster
87
and
Kerr McGee Oil & Gas Onshore LP
31
Gate
of
Gas Pipeline
Xcel Energy
PDC Energy Inc.7
32
Oil/Gas Structures
c.
Fencing
Possible Laramie Seepage and Drainage Ditch
City Westminster
87
Hector Alfonso Faudoa
33
of
Single Family Home (Uninhabitable), Barn, (2) Storage
34
Pump and Underground Electric Up Transformers 17445
g
& 17436
PDC Energy Inc.
88
Buildings, Fencing, Private Dirt Access Road
Noel Garfio
CO
u
u
35
50' Gas Easement
Coors Energy Company
P Y .
88
Electric Transmission Line (local)
__
Noel Garfio
40' ROW
City of Westminster
88
Irrigation Ditch
Noel Garfio
36
DESCRIPTION
INITIAL SUBMITTAL
I INCOMPLETENESS RESPONSE
Approximate Location of Huett Seepage Ditch Centerline
City of Westminster
88
Underground Oil & Gas Pipeline
PDC Energy Inc.
37
38
Light Pole
Holcim - WCR, Inc.
89
Barn, Grain Silo, Private Dirt Access Road, Fencing
Tia L Struck
39
Equipment and Trailer
Holcim - WCR, Inc.
89
Irrigation Ditch
Tie L Struck
40
Equipment and Trailer
Holcim - WCR, Inc.
90
Fence
Nolan T & Jennifer Hussey
Gas Line
Coors Energy Company
90
Underground Cable
CenturyLink
41
G & P
42
PL Line
Coors Energy Company
91
Fence
Dorothy James Struck
43
Culvert
City of Westminster
92
Fence
Jaime Mejia Francia
30' Travel/Ingress/Egress Easement
The Crabb Trust
93
Fence
Halt -Irwin Aggregates LLC
44
ROW
Weld County Public Works Department
94
Private Dirt Road Access
Aggregate Industries - WCR Inc
45
60
100' Electric Transmission Line Easement
Public Service Company of Colorado (PSCO)
95
Overhead Utilities
City of Westminster
46
50' Pipe Line ROW Easement
Coors Energy Company
96
Gas Line
Coors Energy Company
DATE
5/10/23
15/30/23
47
20' Travel/Ingress/Egress Easement
Crabb Trust
97
Private (Two Track) Dirt Access Road
Consolidated Mutual Water Company
48The
Water Company
49
30' Pipe Line Maintenance ROW
Industrial Gas Services, Inc.
98
Private (Two Track) Dirt Access Road
Consolidated Mutual
MARK
v-
01
Pipe
City of Westminster
99
(2) Electric Transmission Lines
United Power, Inc.
50
Fence
City of Westminster
99
Underground Water Utility Pipeline
Consolidated Mutual Water Company
51
HOLCIM - WCR, INC.
WATTENBERG LAKES
EXISTING CONDITIONS
STRUCTURES TABLE
DRMS PERMIT AMENDMENT NO. 1(AM1)
Pipe
City of Westminster
99
Fencing, Private Dirt Access Road
Consolidated Mutual Water Company
52
Public
Oil and Gas Equipment
KP Kauffman Company Inc.
100
Underground PSCO Gas Pipeline
Service Company of Colorado (PSCO)
53
Road Sign
Weld County Public Works Department
101
Private Irrigation Ditch
Asphalt Paving Co
54
Colorado Inc INT) & Denver
55
CTV Line
CenturyLink
102
Private Dirt Access Road
Camas (79.99%
Aggregates Inc (20.01% INT)
56
Gate
City of Westminster
Camas Colorado Inc (79.99% INT) & Denver
57
80' Ditch Easement
Donald Smith
102
(2) Electric Transmission Lines,
Aggregates Inc (20.01% INT)
58
Brighton Ditch
Donald Smith
Camas Colorado Inc (79.99% INT) & Denver
59
60' Wide Road 23 1/2
Weld County Public Works Department
p
102
Underground Gas Pipeline
Aggregates Inc (20.01% INT)
60
60' ROW
City of Westminster
Aggregate Conveyor
Camas Colorado Inc (79.99% INT) & Denver
Aggregates Inc (20.01 % INT)
NOTE:
102
1. AGGREGATE INDUSTRIES - WCR INC. NAME WAS CHANGED IN 2022 TO
61
35' Travel/Ingress/Egress Easement
The Crabb Trust
Camas Colorado Inc (79.99% INT) & Denver
HOLCIM - WCR, INC.
62
Overhead Utilities
Xcel Energy
103
Private Dirt Access Road
Aggregates Inc (20.01% INT)
63
Possible Location of 100' Railroad ROW
City of Westminster
104
12' x 10' Valve Site
Duke Energy Field Services Assets, LLC
64
Road
City of Westminster
105
Possible locations of 60' ROW
Yoshi and Suzu LLLP
65
40' ROW
City of Westminster
106
Gate
Aggregate Industries - WCR INC
66
100' Electric Transmission Line Easement
Public Service Company of Colorado (PSCO)
107
Access Road
City of Westminster
CERTIFICATION-
.
PROJ: 117-7110001
Pump, 2 Tanks Disconnected/Removed gas unit,
108
Caroline Ave
Weld County Public Works Department
THIS MAP WAS PREPARED BY TETRA TECH IN COOPERATION WITH HOLCIM - WCR, INC.
DESN:
67
Underground Power up Transformers 17438 & 17441
PDC Energy Inc.
109
Oil Pipeline
Anadarko Petroleum Company- Occidental
HOLCIM - WCR, INC. WILL KEEP THE DiVIS1ON OF RECLAMATION, MINING, AND SAFETY
DRWN:
INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH
68
Travel/Ingress/Egress Easement
The Crabb Trust
110
Overhead Utilities
United Power, Inc.
ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS
CHKD:
69
Seep Ditch
City of Westminster
110
Underground Oil & Gas Pipeline
PDC Energy Inc.
AS NECESSARY THROUGHOUT THE LIFE OF THE MINE.
C im 3
70
Approximate location of 75' PSCO Easement
Public Service Company of Colorado (PSCO)
/RA
5/30/2023
FREDERICK LEE CHARLES, PE DATE
Copyright: Tetra Tech
Bar Measures 1 inch, otherwise drawing not to scale
5/26/2023 11:13:27 AM - O:\PROJECTS\LONGMONT\7110\117-7110001\CAD\SHEETPILES\WATTENBERG RECLAMATION\EXISTING CONDITIONS.DWG - WEATHERL, LAURA
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OWNER:
CAMAS COLORADO INC
(79.99% INT) &
DENVER AGGREGATES INC
(20.01% INT)
REC. NO. R0013389
7
1. HIGH -RESOLUTION AERIAL IMAGERY ACQUIRED BY HOLCIM - WCR, INC.
ON 4/11/2023.
2. PARCEL OWNER INFORMATION OBTAINED FROM WELD COUNTY
PROPERTY PORTAL.
THIS MAP WAS PREPARED BY TETRA TECH IN COOPERATION WITH HOLCIM - WCR, INC.
HOLCIM - WCR, INC. WILL KEEP THE DIVISION OF RECLAMATION, MINING, AND SAFETY
INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH
ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS
AS NECESSARY THROUGHOUT THE LIFE OF THE MINE.
Bar Measures 1 inch, otherwise drawing not to scale
Copyright: Tetra Tech
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5/26/2023 11:18:53 AM - O:\PROJECTS\LONGMONT\7110\117-7110001\CAD\SHEETFILES\WATTENBERG RECLAMATION\F-1 RECLAMATION PLAN MAP.DWG - WEATHERL, LAURA
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EXISTING WETLANDS
WET MEADOW
MITIGATION AREA 1
3.72 ACRES
- WCR 4 1/2 WCR 41/2
DEWATER (IF NEEDED)
AND FILL UNNAMED
POND AND GRADE TO
RECLAMATION ELEVATIONS -
TWO PRODUCING
OIL WELLS
MAINTAIN CURRENT
ROAD/ACCESS TO
2 OIL WELLS
(INCLUDES 25 FT BUFFER
FROM EDGE OF ACCESS)
INCLUDE 25 -FT SETBACK
FROM COUNTY ROAD, THEN
4:1 SLOPE DOWN TO
WETLAND MITIGATION AREA
o C ^3
'140' EXC' USION\FOR
(CITY OF WESTMLFC4STER)
r ACCESS ROAD
TO REMAIN FOR
FUTURE USE
(NOT RECLAIMED)
POTENTIAL WETLAND
WILLOW SHRUB
MITIGATION AREA 2
8.97 ACRES
(GW 12-18 INCHES BELOW FINAL GRADE)
(EXCLUDES EXISTING WETLANDS)
V
v ETLAND
.ALTGF<ASS M.E G
ITIGATION AREA
„e) 3.52 ACES _}
`V 8-19 INC '€S
;9\ 17 v, -�BF- Q F NAL
BUT'Nf INUNDATE
V V =�
V V V T
v .
v v v
(+ + +
+ + + + +
+ + � � ti +;� + + ...
+ + +
+ u + +
+ + \+ +
+ + +`. + + +
+ + + '4s +
+ # + e':+ -�
+ \ + N _
{ AMEND EXISTING
I SOILS AS REQUIRED
AND/OR IMPORT TOPSOIL
sro
TYPICAL
"'a ' GROUNDWATER
ELEVATION
•
``! (SEASONAL HIGH)
ACCESS ROAD TO
BE REMOVED AND
RECLAIMED
fl
REMOVE EXCESS FILL AND
GRADE TO RECLAMATION
ELEVATIONS
POTENTIAL NATIVE PALUSTRINE
EMERGENT WETLAND
MITIGATION AREA 4
10.44 ACRES
(HERBACEOUS IF SHALLOW GW
6-12 INCHES BELOW FINAL
GRADE, WOODY/WILLOW IF GW
12-18 INCHES BELOW FINAL
GRADE)
REMOVE EXCESS FILL AND r
GRADE TO RECLAMATION
ELEVATIONS
)' 1j
I
I ILO,
I IF tI
PERIMETER DRAIN
(TO BE INSTALLED)
CULVERT
HUETT SEEP/ DITCH
APPROXIMATE LOCATION.
OF PUMP STATION
ACCESS ROAD
. TO REMAIN FOR
•, FUTURE USE
(NOT RECLAIMED)
POND 3
NWL EL. 4920.0
300' OFFSET BETWEEN
COTTONWOOD AREA AND
7 SOUTHERN END OF SPILLWAY AREA
/1 ,
d9 /1/ll
= ; / 30' SETBACK
/, FROM EXISTING
r HUETT DITCH
�tr
COTTONWOOD
REPLACEMENT AREA
4.88 ACRES/
r i
CONSTRUCTION RECLAMATION SLOPE FOR
7 POND 1 AND INCORPORATE
RECOMMENDATIONS BASED ON
GEOTECHNICAL ANALYSIS
(SEE GEOTECHNICAL STABILITY EXHIBIT)
s
MAIN ACCESS
TO MINE SITE
;; _ I
N I I
PRIOR TO CONSTRUCTING SLURRY
WALL, PLACE FILL ON SOUTH SIDE
OF POND 1 TO CREATE 40 -FT.
OFFSET FROM TOP OF POND
SLOPE TO COUNTY ROAD
WCR2334
AUXILIARY ACCESS
SLURRY WALL (EXISTING)
SEE TR 1 FOR POND 3 SLURRY
WALL TECHNICAL
SPECIFICATIONS AND
CONSTRUCTION COMPLETION
C. REPORT (12/18/2014),
APPROVED BY DRMS (1/8/2015)
SLURRY WALL
(TO BE INSTALLED)
(SUPPORT VEHICLES, ECT.)
CULVERT
EXISTING CONVEYOR
CROSSING (BRIDGE) OVER
THE SOUTH PLATTE RIVER
RIVERBANK STABILIZATION
Il
30' OFFSET FROM
EACH SIDE OF CONVEYOR TO
COTTONWOOD REPLACEMENT AREA
50' OFFSET FROM
PERMIT BOUNDARY
60' OFFSET TOTAL
(BOTH SIDES OF
CONVEYOR)
FILL UNNAMED
POND AND GRADE TO
- RECLAMATION ELEVATIONS
- EXISTING CONVEYOR
COTTONWOOD
o REPLACEMENT AREA
5.16 ACRES
50' OFFSET FROM
PERMIT BOUNDARY
CONVEYOR TO CONTINUE
`•' OPERATION AFTER RECLAMATION
UNDER THE WATTENBERG PERMIT.
RECLAMATION OF CONVEYOR IS
COVERED UNDER THE TUCSON
SOUTH MINE PERMIT.
HUETT SEEP/ DITCH I
SLOPE PROTECTION
r
1
SOUTH PLATTE RIVER
S
4
q
TOTAL WETLAND MITIGATION AREA
AREA 1= 3.72 AC
AREA 2= 8.97 AC
AREA 3= 13.52 AC
AREA 4= 10.44 AC
TOTAL 36.65 AC
POND 1 AREA (AT TOP OF SLOPE) = 51.7 ACRES
POND 3 AREA (AT TOP OF SLOPE) = 124.6 ACRES
WETLAND MITIGATION TOTAL AREA = 36.7 ACRES
COTTONWOOD REPLACEMENT TOTAL AREA = 10.0 ACRES
ACCESS ROADS TO BE RECLAIMED = 1.1 ACRES
MISC. DISTURBED AREAS = 10.0 ACRES
AREAS THAT ARE UNDISTURBED, PREVIOUSLY DISTURBED AND
RECLAIMED, OR ACCESS AND COUNTY ROADS (PERMANENT) = 186.7 ACRES
TOTAL PERMIT AREA (AFFECTED AREA) = 420.8 ACRES
CERTIFICATION:
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WELL LOCATION APPROXIMATE
PERMIT BOUNDARY APPROXIMATE
WILLOW SHRUBS
SALTGRASS MEADOW
COTTONWOOD REPLACEMENT
EXISTING WETLANDS
0 150' 300' 600'
SCALE: 1" = 300'
THIS MAP WAS PREPARED BY TETRA TECH IN COOPERATION WITH HOLCIM - WCR, INC.
HOLCIM - WCR, INC. WILL KEEP THE DIVISION OF RECLAMATION, MINING, AND SAFETY
INFORMED OF ANY CHANGES TO THE MINING OR RECLAMATION PLANS THROUGH
ANNUAL REPORTS AND FILE TECHNICAL REVISIONS OR AMENDMENT APPLICATIONS
AS NECESSARY THROUGHOUT THE LIFE OF THE MINE.
Isfe.
5/30/2023
FREDERICK LEE CHARLES, PE
DATE
DESCRIPTION
INITIAL SUBMITTAL
INCOMPLETENESS RESPONSE
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HOLCIM - WCR,
WATTENBERG LAKES
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SO
COLORADO
Division of Reclamation,
Mining and Safety
Department of Natural Resources
NOTICE
Consideration of Construction Materials Reclamation Permit
Amendment Application
DATE: June 15, 2023
RECEIVED
TO: Weld County Commissioners
1150 O St JUN 2 2 2023
Greeley, CO 80631
WELD COUNTY
FROM: Peter S. Hays COMMISSIONERS
RE: Wattenberg Lakes - File No. M-2004-051, Holcim - WCR, Inc.
Amendment Application (AM -1)
Request to increase the affected land boundary from 245.0 to 251.2 acres, an increase of
6.2 acres.
Please be advised that on June 15, 2023, Holcim - WCR, Inc., whose address and telephone number are
1687 Cole Blvd., Suite 300, Golden, CO 80401; (303) 985-1070, filed an application for a/an Amendment
(AM- 1) to M2004051, Wattenberg Lakes, which is located approximately 1 miles of Brighton, Section 25,
Township IN, Range 67W, 06th Principle Meridian, in Weld County.
Amendment Application to increase the affected land boundary from 245.0 to 251.2 acres, an increase of 6.2
acres and reconfigure the final reservoir design by combining Pond 1 and Pond 2 into one (1) reservoir.
The application decision is scheduled for September 13, 2023. Written comments or objections to the
application may be submitted to and additional information obtained from Peter S. Hays at the Division of
Reclamation, Mining and Safety, 1313 Sherman St. Room 215 Denver, CO 80203, by telephone at (303)
866-3567 x 8124.
Holcim - WCR, Inc. is required to publish a public notice in a newspaper of general circulation in the locality
of the mining operation once per week for four consecutive weeks. If you wish to make comments on or
objections to the mine plan and/or the reclamation plan, they must be submitted within twenty (20) days of
the date of the last newspaper public notice to be considered in the application review process by the
Division. You should contact the applicant for the newspaper publication date. If we do not receive your
comments or any objection by the end of the public comment period, the Division will assume you have no
objection or comment to the proposed activity.
M-GR-03A-P
Physical Address: 1313 Sherman Street, Roan 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 I
Mating Address: DRAG Roan 215, 1001 E 62nd Ave, Denver, CO 80216 httos://drms.co orado.eov
Jared S. Polls, 9,0saaj, Dan Gibbs, Executive Director I Viryiria Brannon, Director
(i) TETRA TECH
June 5, 2023
Weld County Clerk to the Board's Office
1150 O Street
Greeley, CO 80631
RE: Notice of Application fora Mined,Land Reclamation Permit
To whom it may concern:
Enclosed is a copy of the materials associated with the revised amendment application information required
to address the Division of Reclamation, Mining & Safety (DRMS) incompleteness letter (dated May 18, 2023) for
the Amendment 1 (AM1) permit application for the Wattenberg Lakes. This application copy is delivered to
you pursuant to 34-32.5-112(9)(a), C.R.S, as amended.
This application must be made available for public review until the permit has been approved by the DRMS.
Please acknowledge receipt of this copy of the application packet by signing below. We need to submit proof
of delivery to the DBMS as proof of filing.
Thank you for your assistance.
Sincerely,
TETRA TECH
Fred Charles, PE
Senior Engineering Manager
Enclosures: Permit Application and Exhibits
RECEIVED THIS DAY OF , 2023.
Weld County Clerk to the Board
By:
Name:
Title:
RECEIVED
JUN Q8 2023
ONTY
MMISSEI,D�IONERS
TETRA TECH
351 Coffman Street, Suite 200, Longmont, CO 80501
Tel +1.303.772.5282 Fax +1.303.772.7039 I tetratech.com
Wattenberg Lakes Amendment, Exhibit P — Municipalities Within Two Miles
May 2023
EXHIBIT P - MUNICIPALITIES WITHIN TWO MILES
The City of Brighton is within two miles of the permit area under this application:
City of Brighton
500 South 4th Avenue
Brighton, Colorado 80601
Phone: 303-655-2000
https: //www. brig htonco. qov/
The City of Fort Lupton is within two miles of the permit area under this application:
City of Fort Lupton
130 South McKinley Avenue
Fort Lupton, Colorado 80621
Phone: 303-857-6694
Fort Lupton, CO - Official Website I Official Website (fortluptonco.Pov)
TETRA TECH
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