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<br />0252 <br /> <br />. <br /> <br />http://www.kdhe.Slale.ks.uslundVuastream <br /> <br />CI & VA TMDLs <br /> <br />. <br /> <br />I. INTRODUCTION AND PROBLEM IDENTIFICATION <br /> <br />Subbasin: Middle Arkansas-Lake McKinney Counties: Hamilton, Kearney and Finney <br /> <br />HUC 8: 11030001 HUC lis: Not Applicable <br /> <br />Drainage Area: 1661 miles2 between Garden City and Coolidge <br /> <br />Main Stem Segments: 1,3,5,7 & 9 from state line to small stream E of Garden City (Figure I) <br /> <br />Tributary Segments: Frontier Ditch (16) <br /> <br />Designated Uses: All uses including Special AqlHltic Life Support and Primary Contact Recreation <br /> <br />1998 303d Listing: Table I - Predominant Point and Non-point Source Impacts <br /> <br />Impaired Uses: Domestic Water Supply, Livestock Watering and Groundwater Recharge <br /> <br />Water Quality Domestic Water Supply: 250 mg/I at any point of domestic water <br /> <br />Standards: supply diversion (K,A.R.28-16-28e(c) (3) (A); Livestock Wateting: 1000 mg/l (Tablc la of <br />K.A.R,28-16-28e(d)); <br /> <br />In stream segments where background concentrations of naturally occuning substances, including <br />chlorides. sulfates and selenium, exceed the water quality criteria listed in Table la of KAR 28-16-28e(d), <br />at ambient flow, the existing water quality shall be maintained, and the newly established numeric criteria <br />shall be the background concentration, as defined in KAR 28-16-28b(f), (KAR 28-16-28e(b)(9)). <br /> <br />In sUlt'ace waters designated for the groundwater recharge use, water quality shall be such that. at a <br />minimum, degradation of ground water quality does not occur. Degradation shall include any statistically <br />significant increase in the concentration of any chemical contaminant in ground water resulting from <br />sUlt'ace water infiltration or injection,(K.AK 28-16-28e(c) (5)). <br /> <br />2. CURRENT WATER QUALITY CONDITION AND DESIRED ENDPOINT <br /> <br />Level of Support for Designated Use under I 998303d: Not Supporting Domestic Water Supply or <br />Livestock Watering <br /> <br />Monitoring Sites: Station 223 near Coolidge, 598 near Decrfield. 286 near Pierceville <br /> <br />Period of Record Used: 1987--1999 <br /> <br />Flow Record: (USGS Stations on Arkansas River near Coolidge (07137500), near Syracuse (07138000) <br />and at Garden City (07139000), Recorded daily data 1987 - 1999) <br /> <br />Flow Conditions: Average Flows from 1987 - 1999: Coolidge, 316 cfs; Syracuse, 321 cfs; Garden City. <br />163 cfs. Median Flows over 1987 - 1999: Coolidge, 191 cfs: Syracuse, 196 cfs: Garden City. 35 cfs, 7QIO <br />assumed to bc 1 cl's. <br /> <br />.:1fl')fOl 7.0' <br />