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Historical Groundwater Quality Record <br /> Vernalis Area G <br /> all units in mg/L,unless otherwise specified) <br /> l� <br /> Total Total i�1 Y i9 Coliform <br /> Sampling EC TDS pH Hardness Ca Mg Na K Alkalinity OH CO3 HCO3 SO4 CI NO3 NO2 P F B ��u�-9l Fe Mn 7.n Total Fecal <br /> Paint Date slcm as CaCO3 as CaCO3 as OR as CO3 as HCO3 as NO3 as NO2 L !L MPNll00 mL <br /> Maximum Contaminant 6.5 to <br /> Level' 900* 500* 8.5* 250* 250* 45 3 2 - 1,000* 300* 50* 5,000* <br /> L Maximum contaminant levels for drinking water supply. Concentrations marked""are secondary,i.e.,consumer acceptance limits for drinking water. For EC,TDS,chloride,and sulfate,the recommended(lower)values are given. <br /> 2. Retesting in November 1994 confirmed presence of total coliform bacteria and absence of fecal coliform. <br /> 3. Sample results for alkalinity series(total alkalinity,OH,CO3,and HCO3)were verified by duplicate sample results from independent laboratory. <br /> 1/2812009-10:12 AM Pagc 8 of 8 <br /> 44 <br /> *� !l <br />