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that the limit otherwise is 5000 ug/1. None of these sensitive plant <br />species are grown commercially in this area. <br />At the Seneca II-W shop well, Well 201TC, CDPHE drinking water standards <br />were used to determine its suitability. No human health standards were <br />exceeded. The secondary standard for iron (0.3 mg/1) was exceeded with <br />values of 6.26 and 6.71 mg/1. The secondary standard for manganese (0.05 <br />mg/1) was exceeded with values of 0.140 and 0.181 mg/1. However, bottled <br />water is consumed at Seneca II-W. Also, since the aquifer for the shop <br />well (Trout Creek Sandstone) starts at 280 feet below the Wadge Coal and <br />is separated by confining shale layers, water from this well should not <br />be affected by mining and, therefore, reflects the natural <br />characteristics of the aquifer. <br /> Ground Water Quality Summary. Increasing TDS trends were observed at <br />_ eleven wells downgradient of mining. Five downgradient wells exhibit <br /> stable or decreasing TDS trends. Four wells did not have enough water to <br /> ear wer <br />l <br />this <br />TDS <br />hi redicted values <br />e below PHC <br /> sample p <br />ues <br />y <br />va <br />s year. <br />t <br /> for all wells except for WHAL7-2, WOV17 and WW14. <br />Agricultural ground water standards were exceeded this year at certain <br />monitoring wells. Tab 7 of the Seneca II-W PAP contains a section that <br />discusses the suitability of using water from the various aquifers <br />monitored at the Seneca II-w Mine for irrigation or livestock watering. <br />The discussion mentions that all aquifers prior to mining at the Seneca <br />II-W Mine have exhibited several parameter concentrations in excess of <br />both irrigation and livestock standards compared, rendering them <br />questionable regarding their suitability for either irrigation or <br />livestock. A11 bedrock aquifers affected by mining have been determined <br />to have transmissivities less than 100 ft2/day, which would also <br />preclude their use for yielding sufficient water for irrigation, or even <br />livestock. <br />Surface Water <br />