2011-10-17_HYDROLOGY - M1980136

• Permit No: M1980136
• IBM Index Class Name: HYDROLOGY
• Doc Date: 10/17/2011
• Doc Name: SWSP
• From: OSE
• To: Applegate Group, Inc.
• Permit Index Doc Type: Hydrology Report
• Media Type: D
• Archive: No

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
0%
10%
Eagle Pit SWSP
October 5, 2011
Page 7 of 8
(b) For fields not deep tilled or chemically treated to successfully kill alfalfa or native
grass, records of monthly monitoring of depth to ground water at existing irrigation
wells or existing or new monitoring wells or piezometers within % -mile of each alfalfa
or native grass field must be maintained. Credits will be reduced according to the
following table when depth to ground water is less than the depth assumed to
provide no significant contribution to native grass or 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.
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 substitute water supply plan expire without renewal or be revoked prior to
adjudication of a permanent plan for augmentation, all excavation of product from below the
ground water table and all other use of water at the pit must cease immediately.
16. 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, water quality data or analysis may be requested at any time to determine if the water
quality is appropriate for downstream water users.
17. The decision of the state engineer shall have no precedential or evidentiary force, shall not
create any presumptions, shift the burden of proof, or serve as a defense in any pending