2016-02-02_HYDROLOGY - M2010071

• Permit No: M2010071
• IBM Index Class Name: Hydrology
• Doc Date: 2/2/2016
• Doc Name: Substitute Water Supply Plan
• From: DNR Water Resources
• To: DRMS
• Email Name: MAC
• Media Type: D
• Archive: No

Mr. Wayland Page 3 of 6
Goose Haven #2 Expansion SWSP
February 1, 2016
pumping depletions will be replaced. As this analysis requires knowledge of the total volume
dewatered, all dewatering activities must be metered with a totalizing flow meter that is recorded
and reported on the submitted monthly accounting.
Replacements
Replacement water for depletions under this SWSP will come from fully consumable
water owned by Lafayette to be delivered to Boulder Creek from Lafayette's waste water
treatment plant ("WWTP", WDID 0602300) or through release from Lafayette's Goose Haven
Reservoir Complex (WDID 0603998). This WWTP discharges to Coal Creek, a tributary to
Boulder Creek. Intervening water rights between the site and the Coal Creek confluence are
the Boulder & Weld County Ditch (WDID 0600515), Howell Ditch (WDID 0600536), and the
Wittemyer Ponds (WDIDs 0606006 through 0606010). Should one of these rights call the
Applicant must insure that water is released directly from Lafayette's Goose Haven Reservoir
Complex. A transit loss of 15% has been assigned to the reach of Coal Creek from Lafayette's
WWTP to the confluence of Coal Creek and Boulder Creek. A letter from Lafayette confirming
that as the owner they will be making replacements on behalf of RCP was provided to our office
on January 11, 2016 and is attached. Table A1.3 provides the required replacement schedule
for these deliveries.
Long-Term Augmentation
Final reclamation at the site will consist of lined storage reservoirs for Lafayette's use as
a part of the Goose Haven Reservoir Complex. In accordance with the letter dated April 30,
2010 (copy attached) from the Colorado Division of Reclamation, Mining, and Safety ("DRMS"),
all sand and gravel mining operators must comply with the requirements of the Colorado
Reclamation Act and the Mineral Rules and Regulations for the protection of water resources.
As the DRMS permit holder and land owner is the City of Lafayette, a bond to cover the cost of
backfilling or lining the pit is not required as Lafayette is a governmental agency. As the final
reclamation plan is a lined reservoir, an augmentation plan is not required to be filed in court.
Conditions of Approval
I hereby approve this substitute water supply plan, in accordance with Section 37-90-
137(11), C.R.S., subject to the following conditions:
1. This SWSP shall be valid for the period of January 1, 2015 through December 31, 2016,
unless otherwise revoked, modified, or superseded by decree. A SWSP renewal request
must be submitted to this office with the statutory fee (currently $257) by
November 1, 2016.
2. A well permit must be obtained for this pit in accordance with § 37-90-137(2) and (11),
C.R.S. Applicant submitted a well permit application (receipt no. 3655374). The provisions
of § 37-90-137(2), C.R.S., prohibit the issuance of a permit for a well to be located within
600 feet of any existing well, unless the State Engineer finds that circumstances so warrant
after a hearing held in accordance with the procedural rules in 2 CCR 402-5. This hearing
may be waived if you are able to obtain statements from the owners of all wells within 600
feet, verifying that they have no objection to your use of the proposed well. Should a new
well permit be denied for reasons of 600 foot spacing, or any other legitimate reason,
approval of this substitute water supply plan will be cancelled.
3. The total surface area of the groundwater exposed at the site during 2016 must not exceed
1.6 acres, resulting in evaporative losses of 3.92 acre-feet.