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Item - Direct benefits Indirect 300 public benefi 'bs Total benefits Project service area $2,471,100 1,768,550 $11,239,650 Lands below John Martin Reservoir $446,900 319.850 $766,750 Total benefited area $2,918,000 2~088.400 $5,006,400 ~, ,""'- .,' i' ~:t i.;) River below John Ma.rtin Reservoir which will benefit from project return flows est:i!llated at 29,500 acre-feet of new headgate water supply. A summary of the annual irrigation benefits followsl Municipal and industrial water SUPI)~V Benefits for municipal and industrial water supply are based upon alternative single-purpose cost studie1Jc It l,as estiJnated that in the absence of '~he project 20,500 acre-feet of water for municipal and industrial use could be obtained by diversion from the F.ryingpan River on the western slope. Required features would be a tunnel with a capacity of 210 c.f.s. through the Continental Divide and enlarge- ment of Sugar Loaf Dam and Reservoir by 62,000 acre-feet of storage capacity. Trie esti!nated construction cost of these features is $11,084,000 which, ~ith interest during construction of $517,000, would require a to~al investment of $11,601,000. The annual OM!tR costs would be $13,350. This alternative excludes costs of municipal water delivery systems for Colorado Springs and Arkansas Valley com- munities; hence, it represents only the basic proj ect water supplY. To derive the full mUnicipal water alternative, the specific costs of the project municipal water delivery system were added. These costs include $13,761,000 construction costs and $455,000 interest during construction. A summary of annual benefits for municipal and industrial water follows 1 Item Investment: Basic project supply Delivery system Total Amount Equivalent of investment Annual OM!tR Total annual benefits $11,601,000 ~.216.oo0 l2 ,817,000 i50~~~o loolears 0, ~70 ,970 206,630 206.630 $1.116.900 $911,600 16