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;.!..~-- . i.r.~~.....,.....\ \/ " . Hollow system. A surge tank would also be required at the plant site to modu- late return flows from the reservoirs. Two different reservoir capacities were considered at each of two different , sites which are in tandem along the swale, with a 20' high dam and a 35' high dam being evaluated at each site. . . Following is a tabulation. of the respecd.ve approximate capacities of these four reservoirs, as designated in the Planning Document: Crow Lane # 1-20' dam-12 acre/feet Crow Lane # 1-35' darn-51 acre/feet Crow Lane # 2-20' darn-8 acre/feet, Crow Lane #2-35' dam.-39 acre/feet ALTERNATE "E"- ADDITIONAL WELLS MANIFOLDED TOGETHER TO INCREASE RAW WATER SUPPLY As mentioned in the Planning Document, the costs related to the wells, pumps, and related piping and treatment systems of a multi-well system in combina- tion with the uncertainty of capacity, has caused the District to eliminate such a system from further consideration.. In view of the anticipated costs of testing and treatment required under new regulatory standards, and acknowledging the relatively smaIl contribution the existing wells make to the system, the District Board recently voted to stop using all of its eXisting .wells. . . ALTERNA..TE ."F'-STORAGE AT BUITONROCK RESERVOIR AND UPGRADED WATER tREATMENT.-fLAm Buttonrock reservoir is a key component of the City of Longmont's water supply system, arid the District was advised by the City that it would not be available for the District's use. . ALTERNA.TE "G"- STQRAGE AT LAKE ESTES AND TRAN-5MISSIOti TO ~ UPGRADED WATER JREATMENI PLANI AND ALTERNATE "H" -STORAGE AT fINEWOOD LAKE AND TRANSMlS- SIaN TO AN UPGRADED WATER TREATMENT PLANT 14