2021-07-01_HYDROLOGY - M2015030

• Permit No: M2015030
• IBM Index Class Name: Hydrology
• Doc Date: 7/1/2021
• Doc Name: Substitute Water Supply Plan
• From: DWR
• To: DRMS
• Email Name: ECS
• Media Type: D
• Archive: No

Chavers Mining Resources Substitute Water Supply Plan Page 5 of 7
July 1, 2021
2. Well permit no. 80121-F was issued for the gravel pit site in accordance with sections 37-90-137(2)
and (11), C.R.S. and this permit remains valid.
3. During this plan period of August 1, 2021 through July 31, 2022 the total surface area of the
groundwater exposed at the Chavers Mining Resources site must not exceed 3.23 acres, which results
in an annual evaporative loss of 3.29 acre-feet per year per acre, or 8.70 acre-feet.
4. During this plan period of August 1, 2021 through July 31, 2022 the water used for dust control at the
Chavers Mining Resources site shall not exceed 1.25 acre-feet; the total product mined at the Chavers
Mining Resources site shall not exceed 700,000 tons, which results in 20.60 acre-feet of water lost
with the mined aggregate; and the total concrete production shall not exceed 154,000 cubic yards,
which results in 14.18 acre-feet of water used for concrete production.
5. Total consumption at the Chavers Mining Resources site must not exceed these aforementioned
amounts unless an amendment is made to this SWSP.
6. Approval of this SWSP is for the purposes as stated herein. This office must first approve any
additional uses for the water.
7. All pumping for dust control shall be measured in a manner acceptable to the Division Engineer.
8. The Applicant shall install and maintain measuring devices as required by the Division Engineer
for operation of this SWSP. A totalizing flow meter is required for the well operated under permit
no. 80120-F. The totalizing flow meter must be installed and maintained in accordance with the
Division One Ground Water Measurement Rules decreed in case no. 2011CW292 (Rules).
Installation and verification of accuracy of the totalizing flow meter, in accordance with the
Rules, must be accomplished prior to operation under this plan.
9. The replacement water that is the subject of this SWSP cannot be sold or leased to any other entity.
As a condition of subsequent renewals of this SWSP, the replacement water must be appurtenant to
this site until a plan for augmentation is obtained. All replacement water must be concurrent with
depletions in quantity, timing, and locations.
10. Adequate accounting of depletions and replacements must be provided to the Division Engineer in
Greeley ([e-mail]), the River Operations It Compact Coordinator (Brent Schantz at
[e-mail]), and the Water Commissioner (Jorge Vidal at [e-mail]) on
a monthly basis. All amounts shall be in acre-feet. All submitted accounting must conform to the
Administration Protocol "Augmentation Plan Accounting - Division One, South Platte River"
(attached).
In addition, the Applicant shall verify that the entity making replacements has included the Applicant
on their accounting and submitted their accounting to the division office and the Water Commissioner;
for this SWSP, that entity is the City of Aurora.
11. Conveyance loss for delivery of augmentation water to the point of depletion on the South Platte
River is subject to assessment and modification as determined by the Division Engineer.
12. The Division Engineer, or his designated representative, will administer all such water transported in
the South Platte River or its tributaries under this SWSP, including water for replacement of
depletions, past intervening headgates to ensure that such water is not intercepted or otherwise
diminished in quantity by diversion, use or other interference by intervening water rights and to
assure that such water remains available and suitable for Applicant's uses under this SWSP, except