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Requirement Regulation Comment <br /> classification of agricultural use at the Coy well. <br /> GF-6 continues to have high concentrations of TDS and <br /> Manganese (Mn)to date. The Mn concentration was 0.055 <br /> mg/L exceeding the Basic Standards for Ground Water of 0.05 <br /> mg/L. <br /> J-1 well,Boron continues to be elevated but receding from <br /> previous highs, and total Manganese (0.083 mg/L) <br /> concentrations were the highest on record. There is no standard <br /> for total Manganese and in Table 3 of the Basic Standards for <br /> Ground Water the standard for Boron is 0.75 mg/L. However <br /> the Boron standard is protective of cultivated plants. If crop <br /> watering of specific plants is not reasonably expected the <br /> standard for Boron is 5 mg/L. <br /> At P-lwell, TDS concentrations were were down compared to <br /> recent levels. And overall indicates a gradual increasing trend. <br /> What accounts for the increasing trend? The well did go dry <br /> again in September similar to last year. Sulfate (SO4)has been <br /> gradually increasing and some of the highest measurements <br /> have been recent. What accounts for the increasing trend? <br /> P-8 had the 3rd highest concentrations of Manganese(Mn)to <br /> date. The Mn concentration was 0.379 mg/L which exceeded <br /> the Basic Standards for Ground Water of 0.05 mg/L. <br /> GMP-1 continues to have elevated TDS concentrations when <br /> compared to historic concentrations. The 2nd highest <br /> concentrations of chlorine (72 mg/L) and continued elevated <br /> sulfate concentrations. <br /> GLEV-3 continues to see increasing concentrations overall of <br /> constituents in the well.While groundwater flow directions in <br /> this location indicate concentrations are naturally occurring a <br /> continued increasing trends will warrant additional explanation. <br /> Requirement Regulation Comment <br /> Each pit disrupts the potentiometric surface of confined aquifers. <br /> After reclamation,monitoring data show recovery of the <br /> S. Restoration of potentiometric surface outside of backfilled pits and partial <br /> ground water CDRMS recovery of potentiometric surface inside backfilled pits. Spoil <br /> recharge to regulation springs may reduce groundwater recharge by diverting <br /> approximate pre- 4.05.12(3) groundwater flow to surface flow. However, Trapper's expected <br /> mining rate total aggregate spoil spring discharge of less than 1 cfs are too <br /> small to reduce recharge below the approximate pre-mining rate. <br /> Page 4 <br />