2020-04-06_HYDROLOGY - M1977151

• Permit No: M1977151
• IBM Index Class Name: Hydrology
• Doc Date: 4/6/2020
• Doc Name: Substitute Water Supply Plan
• From: DWR
• To: DRMS
• Email Name: ECS
• Media Type: D
• Archive: No

Greeley Pit SWS P April 6, 2020
Plan ID 2965 Page 4 of 10
No. of Shares Original Property Farm No. D[y-up Acreage Acres per Share
0.5 John Et Barbara Barrett unspecified 1.544 3.088
0.5 David Becker "floating"
0.5 Carmen Duran unspecified 1.03 2.06
0.25 Mary Jane Johnson (Paul Johnson) E-104 0.48 1.92
0.5 Darrin Morse (Laurel Et Richard Silver) W-38 1.15 2.30
0.2 Ray Smith (Rueben Derr) E-29 1.18 5.90
0.8 Steve Et Linda Story (Earl Et Twyla E-44 4.24 5.30
Wolf)
2.0 Henry M. Karre E-102b 11.38 5.69
1.0 Henry M. Karre E-102a 1.695a 1.70
22.699
a One of two (2.0)shares used on farm, 50%of acreage claimed as dry-up
The Becker's one-half (0.5) share was identified as a "floating share" as described in case no.
1996CW658 and may claim existing dried up acreage. In addition, the acreage irrigated by the
subject shares is below the irrigated-acreage-per-share historic average of 6.74. As such, the
Applicant may claim the remaining 19.4 acres of required dry-up from the "dry-up pool".
The historical return flows shall be maintained in accordance with the return flow factors
identified in case no. 1996CW658. The return flows associated with the delivery of Fossil Creek
Reservoir water that is attributable to the 6.25 GIC shares shall also be maintained in accordance
with the surface and subsurface factors decreed in case nos. 1996CW658. Pursuant to paragraph
6.7.6 of case no. 1996CW658, the subsurface component of the return flow obligation will be
calculated based on the 5-year running average annual farm headgate deliveries of GIC direct flow
water and Fossil Creek Reservoir water. The total annual deliveries for the last five years and the
5-year average that will be used for each year of operation are shown in the attached Table 4. For
the purposes of this SWSP, you have estimated the 5-year average for the second year of operation
based on the average of actual 2015-2019 deliveries and the projected 2020 yield for the 6.25 shares,
as more completely described below. The actual subsurface return flow obligations for the second
year of operation will be based on the average of actual deliveries for the period of 2016-2020.
As specified in case no. 1996CW658, all deliveries of GIC water incur a return flow obligation
to the stream system made up of a surface and subsurface component. The surface component of
the return flow obligation of GIC direct flow water will be calculated by multiplying deliveries by
0.237 (23.7%). The surface component of the return flow obligation associated with the Applicant's
use of Fossil Creek Reservoir water will be calculated by multiplying those deliveries by 0.201
(20.1%). As noted above, the subsurface component of the return flow obligation will be calculated
by multiplying the 5-year average annual delivery of GIC water by the monthly subsurface return flow
factors given in Appendix A-2 of the decree entered in case no. 1996CW658 (see Column A of Table
4). As shown in Table 4, the estimated subsurface return flow obligations for GIC direct flow
deliveries and Fossil Creek reservoir deliveries total 12.99 acre-feet and 0.07 acre-feet, respectively,
for the first year of this plan period and 18.45 acre-feet and 0.39 acre-feet, respectively, for the
second year of this plan period. The quantity of GIC water remaining after the Applicant has
satisfied its return flow obligations is equivalent to the historical consumptive use attributable to the
shares.