2012-04-26_HYDROLOGY - M2001085

• Permit No: M2001085
• IBM Index Class Name: HYDROLOGY
• Doc Date: 4/26/2012
• Doc Name: SWSP
• From: DWR
• To: MARTIN & WOOD WATER CONSULTANTS
• Email Name: BMK
• Media Type: D
• Archive: No

Mr. Craig Lis
GSL Sand and Gravel SWSP
March 22, 2012
Page 3 of 5
but has not received its liner approval from DWR. Based on the Applicants statements the
slurry wall leaks in multiple locations and the pit has completely filled with ground water. This is
not in accordance with their DRMS permit reclamation requirements. At this time the Applicant
has not decided whether to pursue repairing the liner and selling the pit as a water storage
reservoir (as per their DRMS permit), to pursue an augmentation plan to cover the long term
depletion requirements, or to simply backfill the pit. The current financial warranty posted for
the site is $281,115. Due to the current condition of the pit DRMS has raised the warranty to
$608,600 to account for backfilling of the pit. With the next SWSP renewal request, the
Applicant shall demonstrate that they are in, or are diligently pursuing, compliance with their
DRMS permit and the requirements as described in the April 30, 2010 DRMS letter sent to all
gravel pit operators (attached), specifically in regards to the required financial warranty at the
site.
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 November 1, 2011 through October 31, 2012,
unless otherwise revoked, modified, or superseded by decree.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 August
31, 2012.
2. A well permit was obtained for the current use and exposed surface area at the site in
accordance with §37 -90- 137(2) and (11), C.R.S., permit no. 57723 -F.
3. The total surface area of the groundwater exposed at the site must not exceed 15 acres
during the approval period of this SWSP, resulting in evaporative losses of 33.85 acre -feet
for this plan period.
4. The amount of ground water used for dust suppression at the site shall not exceed 0.11
acre -feet for this plan period, and the monthly total product mined at the site shall not
exceed 0.49 acre -feet of water lost with the mined aggregate. This SWSP does not
permit any water use for dust control or aggregate production after November 2011
5. Total consumption at the site must not exceed the aforementioned amounts unless an
amendment is made to this plan.
6. Approval of this plan is for the purposes as stated herein. Any additional uses of this
water must first be approved by this office.
7. All releases of replacement water must be sufficient to cover all out -of- priority depletions
in time, place, and amount and must be made under the direction and /or the approval of
the water commissioner. The release of replacement water may be aggregated to
maximize beneficial use. The water commissioner and /or the division engineer shall
determine the rate and timing of an aggregated release.
8. The discharge of the replacement water and dewatered water into the Ski Lake
should be operated in such a manner as to not cause property damage. Any
property damage that results from the discharge of water into the Ski Lake is solely
the applicant's responsibility.
9. All diversions shall be measured in a manner acceptable to the Division Engineer. The
Applicant shall install and maintain such measuring devices as required by the Division
Engineer for operation of this SWSP. In addition, the applicant shall maintain daily
records of all diversions, replacements, and the amount of water used for each particular