2018-12-06_PERMIT FILE - M2018060

• Permit No: M2018060
• IBM Index Class Name: PERMIT FILE
• Doc Date: 12/6/2018
• Doc Name: Response To Reclamation Permit Application Consideration
• From: DWR
• To: DRMS
• Email Name: ECS
• Media Type: D
• Archive: No

COLORADO
Division of Water Resources
Response to Consideration of 112c Construction Materials Reclamation Permit Application
DATE: December 6th, 2018
TO: Eric Scott, Environmental Protection Specialist ([e-mail])
CC: Division 1 Office, District 3 Water Commissioner
FROM: Colin Watson, P.E.
RE: Tollgate Pit, File No. M-2018-060
Applicant/Operator: Bucklen Services Company, Inc.; [phone]
SW'/a of Section 29, Twp 6 North, Rng 66 West, 6th P.M., Weld County
CONDITIONS FOR APPROVAL
® The proposed operation will consume ground water by: ® evaporation, ® dust control, ®slurry
wall construction, ® water removed in the mined product, ❑ processing:
® Prior to initiation of these uses of groundwater, the applicant will need to obtain either a gravel
pit or other type of well permit, as applicable. However, prior to obtaining a permit, an approved
substitute water supply plan or decreed plan for augmentation is required.
® Prior to approving a well permit, the applicant must conduct a field inspection of the site and
document the locations of all wells within 600 feet of the permit area. The applicant must then
obtain a waiver of objection from all well owners with wells within 600 feet of the permit area or
request a hearing before the State Engineer.
® If stormwater runoff is intercepted by this operation and is not diverted or captured in priority, it
must be released to the stream system within 72 hours; otherwise the operator will need to make
replacements for evaporation.
COMMENTS: The subject application is for a surface mining operation on 60 permitted acres known as
the Tollgate Pit, file no. M-2018-060, located approximately 5.6 miles NW of the City of Greeley. The
primary commodity to be mined at the site is aggregate for construction materials. The present land use
at the site is cropland and the proposed post-mining use is a developed water resource.
The proposed mining operations will predominately occur below the groundwater table and will impact
groundwater hydraulically connected to the Cache la Poudre River ("River"). The site is proposed to be
dry mined using dewatering trenches that will be constructed around the perimeter of the site and will be
discharged to the adjacent Storms Lake Drainage Ditch, which travels approximately 0.5 miles before
discharging to the River. A slurry wall will be constructed around the mine boundary, either before
mining begins or afterwards as finances allow. If the slurry wall is not constructed and approved prior to
the commencement of mining, groundwater will be consumed at the site by way of evaporation, water
retained in the mined product, and dust control. The total estimated annual amount of water to be
consumed is 11.74 acre-feet. Prior to the use/exposure of any groundwater at the site, the applicant
must first obtain a well permit and a valid substitute water supply plan or decreed plan for
augmentation.
1313 Sherman Street, Room 821, Denver, CO 80203 P 303.866.3581 www.cotorado.gov/water zfy
John W. Hickenlooper, Governor I Robert Randall, Executive Director I Kevin G. Rein, State Engineer/Director