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Sent By: TUTTLE APPLEOATE INC U; 303g5227593034528611;Sep-25-00 10:38; Pege 4 Mr. 6a! Mdaryrr s~rm,ee ra, saoo ri[e 3 •fs The source for the SDF factor was: - Htur, R Theodore, Hydro¢eologic Characteristics of the Valley-Fill Aqui~r in the Brighton Reach of the South Platte 'ver Vallev. Colorado, U.S. (3oological Survey Open-File Report, Plate fhS, 1972 A conservative estimate based on steady-state stream depletions was used for determining monthly lagged stream depletions. Lagged stream depletions and consumptive use are compared in Table-3- Repfaee-nent Wafer The following summary of replacement water is reproduced from the aforementioned separate letter. 1. 1998 Effluent Lease (1998 Lease) with the City of Westminster The 1998 Lcasc has been used as a replacement source for individual SSP's that have been _. approved in the pack This is a perpetual lease that provides 0.28 cfs of fltlly consumable water every day of each year and sn additione10.17cfs of fully consumable water every day from October 1 to June 30 doming oath year at the outfall of rho Metro Wastewater Treatment Plant. the lease provides 294.79 acre-feet annually. 2. Historic Use of 104 shams of tho Fulton Ditch (FD) The technique of quantifying historic use of 29 shares of Fulton Uitch water was approved Cur use on Novclnber 12, 1999, for the SSP submilled on March 24, 1994, for the Fulton Lakes Pit. The historic use of the 104 shares of Fulton Ditch water sited in this replacement plan was quantified by using the same technique. During an average year, the 104 shares yield 255.54 aero-feet of wator during April through September while generating 73.39 acre-feet of return flow obligations during t7etnber through March. The total average annual amount of water available from the 104 shares is 182.15 acre-Eger. 3. 1999 Effluent Lease (1999 Lease) with the City of Westminster A conditional least of a matrimum duration of tight years with the City of Westminster, signed on December 21, 1999, will provide 2.0 cfs of fully consumable effluent every day from November 10 to Mardi 20 beginning on November 10, 2000. At the discretion of the City, replacematts can be made at either the Metro Wastewater Treatment Plant or the Slg Dry Creak Wastewater Trcataient Plank The lease provides 515.70 acre-feet annually.