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DIVISION OF MINERALS AND GEOLOGY Site Name: Howardsville Mill <br /> Hydrology Report-Baseline Conditions Permit No.: M-84-049 <br /> Monitoring site No.: S-3--Surface water sample <br /> Animas River: Aquatic Life Cold 1; Recreation 2;Agriculture Monitoring Location: Animas River, upstream of outlet of upland ditch and Howardsville Mill. <br /> PARAMETER UNITS LAB IDENTIFICATION NUMBER Average STANDARDS <br /> 1702 1813 1870 3077 3210 Aquatic' Human Agriculture <br /> Sample Date 06/15/97 08/17/97 10/04/97 06/30/98 09/27/98 5quarters <br /> Inter rat ed/Gab r Grab er Int rated In rated n er ra ter I t ted N/A <br /> 9 9 9 <br /> Surface Fl <br /> ow cfs 750 140 13 <br /> 0 90 <br /> 277.5 . <br /> Well H2O <br /> Depth <br /> ft NA NA NIA <br /> N/A NIA N/A <br /> H std. units 7.03 7.06 6.84 6.51 7.01 6.89 6.5 V-.9...... .....5.-.9..'...... ` 6.5 -8.5 <br /> Conductivity EC u5/cm 131 209 219 90 253 180 <br /> TSS m /I 7.1 0.8 0.1 3.4 0.1 2.3 <br /> TDS m /I 92 140 1 0 0 46 6 17 122 <br /> wn:iw Pii4'ii' <br /> HardnessCO Ca 3 m /I 58 78 134 42 78 78 <br /> alini T.A k CaCO3 /I 14 15 2 16 m 4 5 15 <br /> Ammonia NH3- m /I <0.05 <0.05 <0,01 <0.05 <0.05 0.00 0.02 ? 0.5 ? <br /> Chloride Cl- m /I 3 4 1 8 12 6 250' <br /> WAD Cyanide CN- m A <0.001 <0.001 <0.001 <0.001 <0.001 0.0000 0.005 200 &0.2' 0.2.'.... <br /> Nitrate NO3- m !I 0.9 0.2 0,5 0.6 0.9 1 0.61 10 100 <br /> Nitrite NO2- m /l 3 2 2 2 2 2.2 1 10 <br /> Sulfate SO4- m /l 45 66 85 42 110 70 250 <br /> < < < <br /> 0 Sulfide S m /I 0.002 0.0 1 0.001 0.001 0.001 0.0004 <br /> Calcium Ca /l 21.7 27.5 5 5 29 9.0 <br /> m 2 1 2 <br /> Magnesium M /I 1.05 2.47 1. 5 0 84 1.5 38 m 0 1. <br /> Potassium K /I 0.36 3 0. 3 0.7 99 Pot m m 6 0. 0. <br /> Sodium Na m /I 1.7 15.6 1.1 0.7 1.9 4.2 <br /> Aluminum AI u /I 19 22 65 9 2 23.40 87........ 5000V <br /> Arsenic As u /l <5 <1 <1 <1 2.5 0.50 150 50 100 <br /> Barium Ba u /I 3000 <1000 1000 3000 2000 1800 1000 <br /> Boron B u /1 <100 <100 <100 <100 <100 1 0.00 750 • <br /> Cadmium Cd u /I 1 <0.1 0.3 <0.5 <0.1 0.3 ,.,1 .1•.., 5....... 10 <br /> Chromium Cr+3 6 u /1 <50 <10 <10 <10 <10 0.00 11 50 100 <br /> Copper Cu u /1 11 15 <5 <5 <5 5.20 12 1000 200 <br /> Iron Fe u /I <100 10 <10 <10 <30 2.00 1000(t.rec.) 300` 5000 <br /> Lead Pb u /I <1 <1 <1 <1 <1 0.00 4 50 100 <br /> Manganese Mn u /I 222 171 287 325 51 211 1462 50` 200 <br /> MercuryH u /I 0.5 <0.1 <0.1 <0.1 <0.1 a7l <br /> 0.1 2 10 <br /> Nickel Ni u /1 <100 <1 3 14 4 96 100 200 <br /> Selenium Se u /l <5 <5 <5 <5 <5 17 50 20 <br /> Silver A u /l 0.1 <0.1 <0.1 <0.1 <0.1 .32 50 <br /> Zinc Zn u H 379 233 307 352 263 06 5000' 2000 ` <br /> • Standards for Aquatic Life are Chronic at 100 hardness. ' CN Standards are for Free Cyanide. <br /> • Standards for Human Health with (') are Secondary Standards for drinking water. <br />