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Page 8 <br />18. Basic Standards for <br />Ground Water <br /> <br />CWQCC regulations <br />41.4 and 41.5 <br /> <br />Summary of exceedances: TDS of 6 wells are <br />displaying increasing trends. Agricultural <br />groundwater standards for pH, fluoride, iron, <br />manganese and selenium were exceeded at some <br />monitoring well in the 2016 water year. <br /> <br />Grassy Creek Alluvium: <br /> SGAL71 exceeded the Iron stand in May and <br />Manganese standard in May and September <br />of 2016. <br /> SGAL70 exceeded .2 mg/l Manganese in <br />September of 2016 and Selenium standard <br />May 2016. <br />Cow Camp Creek Alluvium: <br /> SGAL69 exceeded the Manganese standard <br />in May and September of 2016. <br />Wadge Overburden: <br /> COV11 exceeded the fluoride 2.0 mg/L <br />standard in May and September 2016. <br /> COV11 exceeded the pH standard in both <br />May and September 2016. <br /> COV23 exceeded the pH standard in both <br />May and September 2016. <br /> COV2633 exceeded the pH standard in both <br />May and September 2016. <br /> COV2702 exceeded the pH standard in both <br />May and September 2016. <br />Wadge Coal <br /> SW19 exceeded the pH standard in May <br />2016. <br /> SW19 exceeded the fluoride standard in May <br />2016. <br /> CW23 exceeded the pH standard in both <br />May and September 2016. <br /> CW2632 exceeded the pH standard in both <br />May and September 2016. <br /> CW2701 exceeded the pH standard in both <br />May and September 2016. <br /> CW2701 exceeded the fluoride standard in <br />both May and September 2016. <br /> <br />Spoil Wells <br /> SSP27 exceeded the Manganese standard in <br />both May and September 2016. <br /> SSP61 exceeded the Manganese standard in <br />both May and September 2016. <br /> SSP62 exceeded the Manganese standard in <br />both May and September 2016. <br /> <br />Discussion: <br /> <br />Eight groundwater wells exceeded the pH standard <br />(8.5) in 2016. The baseline water quality for pH <br />associated with seven of the eight groundwater wells