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<br />SECWCO
<br />Cl'Iafffle County RICO
<br />31201.?006
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<br />Exhibil6: AnnUOlI Jumor Exchange Potentj;jl from PuebH> Reservoir 10 Twin Lakes and Turquoise Reservoir
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<br />Annual exchange ,OOtentlill shown IS based on the differer'lCe between htstoncal streamnow and the proposed RICO
<br />configutallon It IS the exchange potentlall'l additIOn to historical exchanges (e.g., exchange potential shown does
<br />not mclude hIStorical exchanges made) Thrs IS lOlended to represent exchange potentlil! for hIStorical unellerClSed
<br />and jUl'llOr eJlchanges. Some of the ndlange potential shown could be exercised through eJl1Sl1llQ water nghls
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<br />Annual Junior Exchange Potential from Pueblo Reservoir to Twin Lakes and Turquoise Reservoir lac.ftl
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<br /> Unconstrained Altematrve ConhgurahoflS, WIth UAVFMP (9} (10)
<br /> 111 Current 121 ""
<br /> No UAVFMP, With UAVFMP, Ongln.at RICO TYPJC411 Year 1......-'...'" "Ulure Recovery Year
<br /> Exchanges
<br />WaterYeOir No RICO No RICO A~JCation (1400/1800) (1200/18001 (1000/1500)
<br />"65 101,700 96.800 65,900 91.800 92,600 94,500
<br />1987 59.000 56,900 41,500 52.CXXl 52.500 53.700
<br />'9ll8 45,700 44.800 12,900 29.000 32.700 35.500
<br />'''''' 67.500 57,200 25.400 35,700 38.000 43.400
<br />'990 59,300 49.100 26.800 38,000 39,800 42.700
<br />'99' 53,700 47,100 17.400 32,200 35.800 40.800
<br />1992 56.100 43,200 11700 23.100 24900 29 500
<br />1993 102,100 96,400 75,100 00.800 92,800 95.800
<br />'994 ....400 40,500 20,700 35,200 37,500 38.500
<br />'995 107.100 107,100 91,500 102,100 103.500 104,300
<br />'996 105,600 97,500 87,400 93,200 93.700 95,200
<br />1997 100,000 l00.CXXl 95.200 103.400 104.600 105.500
<br />'998 69 000 67,700 38,100 51,200 53,700 59,300
<br />'999 66.300 66,300 63,000 64,700 65,400 65.800
<br />2000 73.200 59.000 33,300 45,100 47.700 50.900
<br />200' 56,300 45.000 12,900 31.000 34.500 38,100
<br />2002 8.200 7,700 900 3,100 3.100 3,100
<br />2003 49.200 49.100 16.100 28,000 31,700 34,500
<br />2004 34.100 33.300 7.200 12,600 13,500 14,900
<br />A~, . 66,800 61.600 40'00 50,600 52,500 55,000
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<br />Notes
<br />1 Unconstrau'led exchange potentJatwas calculated w~h ArIo;EJlcel. USII1g hlstoncal gaged streamftow,
<br />0710 flow reqUIrements at Salida and Fremont County wastewater treatment plants, and CIlv'CB minimum
<br />Insream flows In Lalle Creell
<br />2 Annual exchange potenhal wrth the exISting Upper ArIo;ansas Flow Management Program measured at 'Nellsville
<br />3 UAVFMP" Upper Arkansas Voluntary Flow Management Program
<br />4 Penod 01 record IS 1986 to 2002 because of Incomplete Lake Creell streamflow data pnot to 1986
<br />5 Source of data for eJlCl'l8nge analySiS IS Colorado DIVISIOn of \'Vater Resource's Colorado DecISIOn Support
<br />Support Systems (COSS)
<br />6 Streamflow data IS hlStoncal gaged now mInus non--native water (estimated from CDSSlON 2 records)
<br />7 Because histoncal streamflow data was used, Rocky Ford II and Hlghhne Canal leases by Aurora are
<br />notlnduded
<br />a RICO as proposed by Chaffee County mtlle county's Pre-heanng statement to the C\o\oCB
<br />9 TYplcal Year aMematlve RICO confiQlSatlOn tor charts
<br />700 cis from May 25 - May 27
<br />3O-0ay nows (1.400 c1s) from May 28 - June 26 (30 days)
<br />700 cis from JlJ'le 27 - Aug 15
<br />250 cis from Aug 16 to May 20
<br />Two 4-day pef1Od:s 011800 cis (June 1 - June 4. June 16 - June 19)
<br />10LJm~ed Future ExchangesaltematlVe RICO configuratIon tor charts as above except
<br />3O-0ay flows 011.200 cis
<br />11 Recovery yt'ar altematl\le RICO coofigurabon for charts asabo'we except
<br />Two 4-day pef1Od:s of 1500 c1s (June 1 - June 4, June 16 - June 19)
<br />3O-0ayftowsof Weekdays 1.CXXIcfs
<br />Weekends 1,loom
<br />12, DefinrtKln 01 potenllal recovery years
<br />Potential recovery year based on 70% 01 Excess CapaCIty
<br />PotentiCIl recovery year based on 70% 01 Enlarged Storage Space
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