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Table 3.2 <br />Well Capacity <br />City of Ramsey, Minnesota <br />Well Pump Capacity Total Daily Capacity <br />(gpm) (mgd)* <br />1 970 1.164 <br />2 220 0.264 <br />3 1,450 1.740 <br />4 855 1.026 <br />5 850 1.020 <br />6 1,000 1.200 <br />7 1,000 1.200 <br />8 1,400 1.680 <br />Subtotal 7,745 9.294 <br />Minus largest well out -of -service 1,450 1.740 <br />Maximum Firm Capacity of Existing Wells 6,295 7.554 <br />* Calculated based on 20 hrs. of pumping/day <br />3. Existing Water Supply Quality <br />Key issues pertaining to Water Quality are as follows: <br />1. The existing water supply quality meets all of the current Safe Drinking Water <br />Act (SDWA) maximum contaminant limits (MCL's). These limits are set to <br />protect the public from any health risks that may be found in water supplies. <br />2. Iron and manganese exceed the SDWA secondary limits in all of the wells. <br />The SDWA contains secondary limits, which recommend water quality <br />parameters, that although not health risks, reduce the quality of water, typical <br />due to staining or taste and odor issues. <br />3. The hardness of Ramsey's water is classified as hard, based on American <br />Water Works Association (AWWA) water hardness scale. Since the majority <br />of the homeowners have in -home softeners, providing softening at the <br />municipal scale is usually not considered to be cost effective by the <br />municipalities. <br />4. Arsenic was detected in Well No. land Well No. 2. The arsenic levels of <br />0.0066 and <0.0047 mg/1 are well below the current MCL of 0.010 mg/1. <br />While the arsenic concentration is below regulated limits, if arsenic <br />concentrations in the wells increase, the City of Ramsey may need to address this <br />issue. Compliance alternatives might include abandoning the affected wells and <br />City of Ramsey, Minnesota — R13.104504 Page 3-3 <br />Comprehensive Water System Study Prepared by Bolton & Menk, Inc. <br />