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Table 34 <br /> Drainage Subcatchment Areas and Impervious Characteristics <br /> Proposed Action (RI) and 1988 CSIIP Master Plan. Conditions <br /> ' Powder Mill Gulch Basins North and. South Complex Areas <br /> Page 4 of 4 <br /> ImUm.*ad timpaMo ra Area EaU*natea <br /> Drake Subcatchment Percent (acres} Aireat <br /> S.bcatcbmest Drainar Area <br /> No. (acres) RI 1988 CSDP RI 1988 CSDP <br /> ' 83 4.5 100.0 100.0 4.5 4..5 <br /> 84 4,5 100.0 100.0 4.5 4,5 <br /> t9 `1000 00.9 <br /> 87 14 1003 100.0 1.4 1.4 <br /> 140 4.9 <br /> ' 89 3.0 100.0 g 100.0 3.0 3.0 <br /> TOTALS 841.7 72.9 71.1 614.4 599.0 <br /> (Basin) <br /> TOTALS 580.1 922 895 534.7 5193 <br /> (Site Area) <br /> ' r $These areas in Northeast Expansion area were assumed in 1988 CSDP to drain to Powder Mill Gulch detention basin. <br /> b63 acres of this area are in Northeast Expansion area(assumed in 1988 CSDP to drain to Powder Mitt Gulch detention <br /> basin). <br /> CThese aubeatchme nts are offsite drainage area contributions. <br /> sea771Z/046g.51 <br /> 1 <br /> EXCERPT FROM 1991 EIS REPORT <br /> 3-5 <br />