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17 000794 This model had previously been used to estimate recharge, in much of eastern and central Kansas by the UoSo Geological Survey's Central Midwest Regional Aquifer System Analysis project (Dugan and Peckenpaugh, 1985)0 The model was used to estimate recharge in western and the remaining part of central Kansas after the appropriate data were collectedo These results were combined with those from the Central Midwest Regional Aquifer System Analysis project (JoTo Dugan, written communication, 1985) to make a generalized map of mean annual recharge in Kansaso Average recharge for an area was estimated to the nearest quarter incho Selected Results and Computations: Table 3 shows groundwater recharge by county and aquifero The values in Table 3 were computed by using equation (2) as shown below for Shawnee County. Note that several computations are required because portions of Shawnee County have different amounts of annual recharge 0 Groundwater Recharge = (a x b)/12, where a = area of recharge (acres) and b - average recharge (inches), ( 1) Alluvial groundwater recharge = (69,950) x (500)/12 = 29,146 2) Alluvial groundwater recharge = (1,924) x (5025)/12 = 842 3) Alluvial groundwater recharge = (9,652) x (505)/12 = 4,424 ( 4) Total alluvial groundwater recharge = 29,146 + 842 + 4,424 = 34,412 ~ 34,000 5) Glacial groundwater recharge = (8,505) x (4075)/12 = 3,367 6) Glacial groundwater recharge = (6,152) x (500)/12 = 2,563 7) Glacial groundwater recharge = (12,698) x (5025)/12 = 5,555 ( 8) Glacial groundwater recharge = (7,079) x (505)/12 = 3,245 ( 9) Total glacial groundwater recharge = 3,367 + 2,563 + 5,555 + . 3,245 = 14,730 = 15,000 . (10) Total Shawnee County groundwater recharge 34,000 + 15,000 = 49,000 acre-feeto