2014-02-28_HYDROLOGY - M1977522

• Permit No: M1977522
• IBM Index Class Name: HYDROLOGY
• Doc Date: 2/28/2014
• Doc Name: Substitute water supply plan
• From: Division of Water Resources
• To: Parsons Water Consulting, LLC
• Email Name: ECS
• Media Type: D
• Archive: No

Mr. Rick Parsons, P.E.
L.G. Everist Combined SWSP
Page 9 of 10
February 27, 2014
than the depth assumed to provide no significant contribution to alfalfa growth.
Measurements taken at the start of each month will determine the necessary reduction in
credit to be applied during the following month. The applicant may use another
methodology upon review and approval by the State Engineer and Division Engineer.
Depth to Ground
Water (Feet)
Percent Reduction in CU Credit'
Native Grass
Alfalfa
1
85%
100%
2
50%
90%
3
30%
75%
4
20%
50%
5
15%
35%
6
10%
20%
7
5%
15%
8 1
0%
10%
1. Adapted from EVAPOTRANSPIRATION AND AGRONOMIC RESPONSES IN FORMERLY IRRIGATED
MOUNTAIN MEADOWS, South Park Colorado, March 1, 1990; Revised September 1, 1991
15. This substitute water supply plan may be revoked or modified at any time should it be determined
that injury to other vested water rights has or will occur as a result of this plan. Should this supply
plan expire without renewal or be revoked prior to adjudication of a permanent plan for
augmentation, all use of ground water must cease immediately.
16. If reclamation of the mines at the gravel pit sites included in this SWSP produce a permanent
water surface exposing groundwater to evaporation, an application for a plan for augmentation
must be filed with the Division 1 Water Court at least three years prior to the completion of mining
to include, but not be limited to, long -term evaporation losses. If a lined pond results after
reclamation, replacement of lagged depletions shall continue until there is no longer an effect on
stream flow.
17. Dewatering at the Carbon Valley Pit, Rinn Valley Pit, and Firestone Pit will produce delayed
depletions to the stream system. As long as the pits are continuously dewatered, the water
returned to the stream system should be adequate to offset the depletions. However, once
dewatering at the sites cease, the delayed depletions must be addressed. A plan that specifies
how the post pumping dewatering depletions (including refilling of the pit) will be replaced, in time,
place and amount along with the evaporation from groundwater exposed at the sites after the
dewatering stops was presented in the proposed plan.
18. The monthly volume of water pumped for dewatering operations must be recorded through a
totalizing flow meter and shown on the submitted accounting sheets.
19. Water shall not be impounded in any lined reservoirs except pursuant to lawful diversions allowed
by statute or decree. At all other times, all inflow of water into the reservoirs from any source,
including precipitation and ground water inflows, shall be removed by the applicant. The water
may be removed from within the lined area and returned to the stream system through surface
flow or ground water recharge without need for replacement, so long as the operator does not put
the water to beneficial use.
20. In accordance with amendments to §25 -8- 202(7), C.R.S., and "Senate Bill 89 -181 Rules and
Regulations" adopted on February 4, 1992, the State Engineer shall determine whether the
substitute supply is of a quality to meet requirements of use to senior appropriators. As such,