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002392 TABLE 1 PROCEDURE TO ESTIMATE DEPLETIONS AND DIVERSIONS Code Structure T'1D8 01 Use Procedure used to Estimate Or.ersions and DeDletions 11 2) 13 4) Aug All AugmentaIia1 OMnions and depletions are estimated at 0.44 ac-ft which is the value estimated by the Division 4 Engi.- for augmenlation water rights without any other informaliQO, C~n Nor>- C'--.III_~ and D.......ions and depletions are estimllled at 0,44 ac-n wl1ich is the value estimated by the Reservoir Industrial DivisiQO 4 Engineer for commen:ial and industrial_ rights withoot any other information. The 0,44 ac-n is the total use for a water right with QOIy commercial use. only industrial use. or canmerciaJ use and industrial use. Do Weiland Daneslic and DMnions are estimated to be 0.31 ac.ft and the associated depletions 0.11 ac-ft. Springs MunicipaJ with Domestic use estimated as 12OJgaVday/person with a consumptM! use percentage of dec:n8l rights less 36% (estimates used by S~U), The _e persons per house is estimated to be than or equal to 0.10 2.3 based on data provided by the Colorado Demography Service (see page 4 of HellQO cfs & Williamsen, p, C, repa1 .Use of the Upper GunnisQO River Water Conservancy District Water Rights 10 Meet Current and Future Needs" dated October 1997), D.......ions are estimated as 2.3x121lx3651(7.48x43,560)=O,31 ac-n and the """""pending deplelions are 0,36xO,31=O, 11ac-fllyr, These estimated d.......jons and depletiQOs are used for _ rights with QOIy daneslic use, QOIy municipal use, or for a right with municipal and dcmestic use. Dv All All D.......ions records from DWR HYDROBASE, Dillersions divided between water rights based on priority. Slructures included in the DWR StateCu program are nat included in this caleaav, Ev Reservoir Reservoir 8VcIpOlIatio.. DNef'sions and depletions equal to reservoir evaporation losses. Reservoir evaporation with rights in is primary use loss estimated as 5.6% of the reservoir" storage right. The factor of 5.6% was determined units of ac-n fran an analysis of 24 reservoirs that had available reserYOir surface area. For these reseNOir the total reservoir evaporation losses was estimated as the reservoir surface erea multiplied by the reservoir evaporalion rats. This loss is then pro-nlled between water rights using the decreed storage amounls, The reservoir surface area is _ from the DWR GIS informatia'l (COSS website) that tabulates maximum water surface area. A net evaporation rate 012,23 feet was estimated from the _e of the net evaporation rates at Taylor Pari< Resl!l'llOir and Blue Mesa Reservoir (see the Division 4 Engineer Accounting for Taylor Park Reservoir and Blue Mesa Reservoir). Gn Wells City 01 GunnisQO DiveBions records provided by Frank Kugel of the DWR Division 4 office, For the Municipal Use purposes of this study it is estimated that depletions are 36% of diwrsions (value used by SlateCU), GunnisQO Well No, 10 has reported dillersiQOs """" though the DWR water rights tabulations list this well as a conditional wale< right. For the pul\lOS8 01 this study, ~ is estimated that GunnisQO Well No, 10 water right is an absolute right. 1r1 Non- lITigation with no Oep~ and dNer.i.ions are zero because this structure was determined to h~ no R............ irrigated acreage and irrigllled acreage by the DWR as documented in the DWR irrigated acreage data in the no DWR diller.lion DWR HYDROBASE, In add~ion, the DWR HYDRO BASE showed zero ae-n of records diYefsion for this structure. 112 Non- Irrigation with no Dillersion records from DWR HYDR08ASE, The DWR estimated no irrigated acreage Reservoirs irrigated acreage but associated with structure. Depletions are estimated to be 19% of the diversions bmsed DWR d.......ions on deplelions percentage for junior irrigation rights in StateCu (0,19=2,726114,516), recor<Is 1r3 ReseNOirs Irrigation with DWR Records of diversion to storage. release from storage, and evaporation losses available records from the DWR HYDR08ASE, These records indicate that in 2000, all of the d.......ions to staage were under water rights senior to the Aspinall unit water rights. This cooing is used for Vouga Resl!l'llOir, Upper McDQOough Resl!l'llOir, and Lower McDQOough Reservoir. Ir4 ReseMlirs Irrigation with no No records of dillersion, release or storage awilable fran the DWR HYDR08ASE, DWR records Based on engineering judgment ~ is estimated that 50% of the water right was dM!rted into staage and 30% of the water diYerted to storage was consumed for inigation aumoses, IrS ReseMlirs Decreed fll( Irrigation This cOOe applies to Spring Creek ReseMlir, Upper Dane Reserwir, and Lower Dane but no Iooger used for Reservoir. These reserYOirs are decreed for irrigation but are no longer used for irrigation IrrigatiQO purposes. Therefore. the irrigation diwfsions and dep~ons are zero ac-ft.