2007-11-07_HYDROLOGY - M1977300 - Laserfiche WebLink

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TABLE 32. WATER QUALITY /N ALLUVIAL MONITORING WELLS 1998 - 2007 MONITORING WELL MW4 MW4 MW4 MW4 MW4 MW4 MW4 MIN MAX MEAN MEDIAN COUNT ND % ND 8/31/98 9/29/98 1022/98 1123/98 12/16/98 1/20/99 calcusin 12 DL pH (std units) 7.7 7.6 7.2 7.9 7 7.2 7 7.9 7.43 7.4 6 0 0% Conductivity (umhos) 676 688 654 611 598 550 550 688 629.5 632.5 6 0 0% Total tlissolved solids 515 459 465 433 432 353 353 515 442.8 446 6 0 0 Total suspended solids 196 123 254 155 117 17.7 17.7 254 143.783 139 6 0 0 Hardness, total 320 330 320 300 290 260 260 330 303.3333 310 6 0 0% Carbonate n/a Na Na Na 0 0 n/a Bicarbonate n/a Na Na n/a 0 0 n/a Alkalinity, Dissolved n/a n/a Na n/a 0 0 n/a Alkalinity, total 130 140 140 150 130 140 130 150 138.3 140 6 0 0 Nitrate Nitrogen 2.9 3.1 3.3 3.2 2.5 2.1 2.1 3.3 2.85 3 6 0 0 Ammonia, total 0 0 0 0 0 0 <0. 0.000 0 5 5 100% Callum, dissolved 85 87 84 78 75 67 67 87 79.3 81 6 0 0 Callum, total Na n/a n/a n/a 0 0 Na Magnesium, dissolved 27 28 27 25 24 22 22 28 25.500 26 6 0 0% Sodium, dissolved 14 16 14 14 13 13 13 16 14.0 14 6 0 0 Potassium, dissolved 3.1 3.7 3.5 3.4 3.4 3.2 3.1 3.7 3.4 3.4 6 0 0% Sulfate 210 210 190 170 180 150 150 210 185.00 185 6 0 0% Fluoride, total 0.3 0.3 0.3 0.3 0.4 0.3 0.3 0.4 0.3 0.3 6 0 0% Chloride 9 10 11 11 11 10 9 11 10.333 10.5 6 0 0% Aluminum, dissolved <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.250 0.25 6 6 100% Aluminum, total n/a n/a n/a Na 0 0 n/a Antimony, dissolved <0.03 <0.03 <0.008 0.003 <0.003 <0.003 <0.03 0.008 0.004 5 4 80% Antimony, total <0.03 <0.03 <0.03 0.015 0.015 1 1 100% Arsenic, dissolved <0.005 <D.OS <0.05 <0.003 <0.003 <0.05 0.0135 0.01375 4 4 100% Arsenic, total <0.05 <0.003 <0.003 <0.003 <0.05 0.009333 0.0015 3 3 100% Barium, dissolved <0.5 0.04 0.04 0.04 0.04 <0.5 0.093 0.04 4 1 25% Barium, total 0.04 0.03 0.04 0.03 0.04 0.036667 0.04 3 0 0% Beryllium, dissolved <0.001 <0.001 <0.002 <0.002 <0.002 <0.001 <0.002 0.001 0.001 5 5 100% Beryllium, total <0.001 <0.001 <0.001 0.0005 0.0005 i 1 100% Boron, total n/a n/a n/a Na 0 0 n/a Cadmium, dissolved <0.002 <0.002 <0.0002 <0.0002 <0.0002 <0.0002 <0.002 0.0005 0.0001 5 5 100% Cadmium, total <0.003 <0.003 <0.003 0.0015 0.0015 1 1 100% Chromium, dissolved <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005 0.0025 0.0025 5 5 100% Chromium, total <0.005 <0.005 <0.005 0.0025 0.0025 1 1 100% Cyanide, total Na Na Na n/a 0 0 Na Copper n/a Na Na Na 0 0 n/a Copper, dissolved <0.02 <0.02 <0.02 <0.02 c0.02 <0.02 <0.02 <0.02 0.01 0.01 6 6 100% Copper, total n/a Na n/a Na 0 0 n/a Iron, dissolved <0.03 <0.03 <0.03 <0.03 0.03 <0.03 <0.03 0.03 0.018 0.015 6 5 83% Iron, total n/a n/a n/a n/a 0 0 Na Iron, suspended Na n/a n/a n/a 0 0 Na Iron, Ferrous (Fe2+) n/a Na n/a n/a 0 0 Na Iron, Ferric (Fe3+) Na Na Na n/a 0 0 Na Lead, dissolved <0.0002 <0.05 <0.05 <0.002 <0.0002 <0.05 0.0128 0.013 4 4 100% Lead, total <0.02 <0.002 <0.002 <0.002 <0.02 0.004 0.001 3 3 100 Manganese, dirs. <0.01 <0.01 <0.01 0.01 <0.01 <0.01 <0.01 0.01 0.005833 0.005 6 5 83% Manganese, total n/a n/a n/a Na 0 0 n/a Mercury, dissolvetl <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 0.0001 0.0001 5 5 100% Mercury, total <0.0002 <0.0002 <0.0002 0.000 0.0001 1 1 100% Molybdenum, diss. 0.031 0.029 0.03 0.15 0.03 0.029 0.15 0.054 0.03 5 0 0% Molybdenum, total 0.033 0.033 0.033 0.033 0.033 1 0 0% Nickel, dissolvetl <0.02 <0.02 <0.04 <0.04 <0.04 <0.02 <0.04 0.016 0.02 5 5 100% Nickel, total <0.02 <0.02 <0.02 0.010 0.01 1 1 100% Phosphorous n/a Na Na Na 0 0 Na Selenium, dissolved <0.05 <0.05 <0.005 <0.005 <0.005 <0.005 <0.05 0.0115 0.0025 5 5 100% Selenium, total <0.05 <0.05 <0.05 0.0250 0.025 1 1 100% Silver, dissolved <0.005 <0.005 <0.001 0.0006 <0.0002 <0.0002 <0.005 0.00124 0.0006 5 4 80% Silver, total <0.005 <0.005 <0.005 0.0025 0.0025 1 1 100% Thallium, dissolved <0.05 <0.05 <0.001 <0.001 <0.001 <0.001 <0.05 0.010 0.0005 5 5 100% Vanadium, dissolved <0.005 <0.005 <0.01 <0.01 <0.01 <0.005 <0.01 0.004 0.005 5 5 100% Thallium, total <0.03 <0.03 <0.03 0.015 0.015 1 1 100 Vanadium, total <0.005 <0.005 <0.005 0.0025 0.0025 1 1 100% Zinc, dissolved <0.005 <0.005 0.006 <0.005 <0.005 <0.005 <0.005 0.006 0.003083 0.0025 6 5 83% Zinc, total Na Na n/a Na 0 0 n/a Uranium, dissolved 0.3 0.031 0.28 0.29 0.29 0.2 0.031 0.3 0.231833 0.285 6 0 0% Uranium, suspended n/a n/a n/a Na 0 0 n/a Uranium, total n/a n/a n!a Na 0 0 Na Thorium-228, dis. (pCi/L) 0 0.1 0 0 0.1 0.033333 0 3 2 67% Thorium-230, dis. (pCi/L) 0.4 0.3 0 0 0.4 0.233333 0.3 3 1 33% Thorium-232, dis. (pCi/L) 0 0 0 0 0 0 0 0 3 Na Radium-226, dis. (pCUL) 1.2 0.2 0.2 0.5 0.5 0.2 1.2 0.52 0.5 5 0 0% Radium-226, susp. (pCi/L) Na Na Na Na 0 0 Na Radium-226, total (pCi/L) Na Na n/a Na 0 0 Na Gross Alpha, dis. (pCi/L) 400 420 170 160 150 150 420 260 170 5 0 0% Gross Beta, dis. CUL 93 63 140 120 130 63 140 109.2 120 5 0 0 NOTES: Meen end modian sranstic calwleted usny one-haM the detection limit (12 D.L.) <=not detected et detection limd shown ND, %ND =number end pament o/non detach Results in mg/L unless otherwise noted. Page 10 of 17