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COLORADO DEPARTHEN~F HEALTH, Water Quality Contro~Division <br />Permit Number CO-0032751 Page 2 . <br />APPENDIX B1 <br />Croce Mine Discharge Monitoring Report Data: Discharge Point 001 <br /> Avg Avg/Max Avq ~ Avq Avg Avq Avq Min/Max <br />on Flaw TSS Cd Cu Pb Hq Zn pH <br /> oom fMGD1 ma/1 ~J3 m 1 ma/1 ma/1 ma/I s.u. <br /> <br />1/87 15 (0.022) R2 0.008 80,06 I 0.025 80.0001 0.55 - / 8.01 <br />2/87 15 (0.022) 6 0.0054 0,017 0.047 80.0001 0.56 - / 7.23 <br />3/87 15 (0.022) Z 0.001 0,024 0.018 0.0001 0.57 - / - <br />4/87 15 (0.022) 9 0.0052 RO,OOE~ 0.019 0.0001 0.43 7.95/8.1 <br />5/87 - 4 0.0032 0,008 0.015 K0.0001 0.25 6.8 /8.1 <br />6/87 - 3 0.0028 RO,OOE~ 0.011 80.0001 0.22 6.99/8.25 <br />7/87 30 (0.044) - 0.0044 0.00% 80.002 80.0001 0.35 7.5 /8.9 <br />8/87 20 (0.029) 2 0.0071 0,029 0.010 80,0001 0.39 7.2 /8.69 <br />9/87 * R2 0.0086 0,02Ei 0.015 K0.0001 0.45 7.5 /8.72 <br />10/87, 11 /87 No Disch arge <br />12/87 *• No Disch arge 7.6 /7.85 <br />1/88 18 (0.026) R2 0.0063 0.012 0.014 80.0001 0.51 7.73/7.8 <br />2/88 18 (0.026) K2 0.00445 0.016 0.009 K0.0001 0.36 7.6 /7>8 <br />3/88 18 (0.026) R2 K0.005 0.009 RU.002 K0.0001 0.37 7.65/7.88 <br />4/88 18 (0.026) K2 0.0053 0.008 0.011 K0.0001 0.35 7.5 /7.84 <br />5/88 45 (0.065) K2 0.0067 0,02Ei 0.0295 80.0001 0.435 6.9 /7.8 <br />6/88 60 (0.086) R2 0.007 0.012 0.026 K0.0001 0.305 7.75/8.0 <br />7/88 30 (0.043) 3 K0.005 0.01() 0.012 K0.0001 0.26 7.3 /7.8 <br />8/88 30 (0.043) 9 0.0001 80.006 0.002 - 0.01 7.8 /8.1 <br />9/88 25 (0.036} 2 80.005 0.008 0.005 K0.0001 0.31 7.5 /8.0 <br />10/88 20 (0.029) K2 0.005 KO.OOti 0.015 K0.0001 0.21 7.0/ 7.85 <br />11/88 25 (0.036) K2 0.007 80,006 K0.05 f 80.0001 0.20 7.4/ 7.7 <br />12/88 25 (0.036) K2 80.005 80.006 K0.05 f K0.0001 0.20 6.3/ 7.8 <br />1/89, 2/ 89, 3/89 No Discharge <br />4/89 73 (0.105) K4 0.01 K0,01 0.04 0.0007 0.33 7.5 /8.38 <br />5/89 70 (0.1005) K4 0.004 80,01 0.03 K0.0002 0.32 7.85/7.85 <br />6/89 84 (0.1216) KS 0.007 0,01 0.02 KG.0001 0.41 7.21/7.2:L <br />7/89 64. 5 (0.093) No Sample Taken <br />8/89 73 (0.032/.0 5) IC2 0.0016 0.01 0.012 K0.0002 0.12 7.6 /8.25 <br />9/89 70 (0.02/0.0 5) 3 0.0060 0,012 0.04 0.0009 0.41 7.3 /7.45 <br />10/89 84 (0.019/.1 1) 3 0.006 0,012 0.04 0.0009 0.41 7.65/7.85 <br />11/89, 12 /89 = No Disch arge <br />1/90 205 (0.295)* 4 0.0012 0.029 K0.005 K0.0002 0.89 7.2 /7.7 <br />2/90 115 (0.166)• 21 0.0062 0.03.3 0.13 K0.0002 0.61 7.35/7.7 <br />3/90 22 (0.032) RS 80.005 80.01 0.019 K0.0002 0.36 7.2 /7.8 <br />Previous Permit Limits: 30-day average on top row; d aily maximum on bottom row <br /> NA 20 0.0004 0,005 0.004 0.00005 0.05 6.5 /9.0 <br /> NA 30 0.0008 0.010 0.008 0.00010 0.10 6.5 /9.0 <br />K = Leas than Avg = Average Hax = Maximum NA = Not applicable <br />* Little or no discharge <br />*• No samples other than pH were reported; new treatment system was on line <br />during the end of 12/87. No other analyses were reported for this month. <br />~ = Excluded from mean calculation determination <br />