2019-06-25_REVISION - M1988108

• Permit No: M1988108
• IBM Index Class Name: REVISION
• Doc Date: 6/25/2019
• Doc Name: Response To Application Consideration Notice
• From: DWR
• To: DRMS
• Type & Sequence: AM3
• Email Name: ECS
• Media Type: D
• Archive: No

oCOLORADO
t.— .0 Division of Water Resources
® Department of Natural Resources
Response to Consideration of 112 Construction Materials Reclamation Permit
Amendment Application
DATE: June 25, 2019
TO: Eric C. Scott, Environmental Protection Specialist
([e-mail])
CC: Division 1 Office, District 6 Water Commissioner
FROM: Javier Vargas-Johnson
RE: Western Aggregates, File No. M-1988-108-AM03
Applicant/Operator: Arcosa LWB, LLC; [phone]
NE'/a of Section 5 and NW'/a of Section 4, Twp 2 South, Rng 70 West, 6th P.M., Jefferson
County
CONDITIONS FOR APPROVAL
® The proposed operation will consume water by: ® evaporation, ® dust control,
❑ reclamation, ❑ water removed in the mined product, ® processing, ❑ other.
❑ Prior to initiation of these uses of groundwater, the applicant will need to obtain 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.
® Any storm water 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.
® A Notice of Intent must be filed before construction of any monitoring and observation
holes. Within 18 months of construction, monitoring and observation holes must be
converted to a well by obtaining a permits for monitoring wells, recovery wells, or
dewatering systems, or abandoned in accordance with the Water Well Construction Rules (2
CCR 402-2).
COMMENTS: The subject application seeks an amendment for a surface mining operation located
approximately 4 miles south of Boulder, Colorado. The amendment seeks to add 33 acres to the
currently permitted 187 acres for a new total permit area of 220 acres, to install a down-gradient
groundwater well, and to change the current mining and reclamation activities. The primary
commodity to be mined at the site is shale. The site is proposed to be reclaimed to allow land uses
including developed water resource and rangeland. The developed water resources are proposed to
have a water surface area of 10 acres.
1313 Sherman Street, Room 821, Denver, C0 80203 P 303.866.3581 www.cotorado.gov/water
Jared Polis, Governor I Dan Gibbs, Executive Director I Kevin G. Rein, State Engineer/Director +
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