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TABLE 12 (CONTINUED) WATER QUALITY DATA, WELL NW-23 Sample Dace PARAMETER UNITS 12/05/84 05/17/85 10/24/85 _______ 01/16/86 __________ 05/20/86 ___ 08/06/86 01/27/87 05/28/87 08/31/87 __=====ccv.......cee e. ve cc Alkalinity as CaC03 c.c.....e. mg/l e=ease.vv... .__=====e _______ eaa 270 ________ _ 266 __________ 275 __________ 264 __________ 266 __________ NO __________ 267 Bicarbonate as CaC03 mg/l 262 271 270 266 275 264 266 SAMPLE 267 Calcium, dissolved m5/t 8 12 6 6 6 7 3 REQUIRED 5 Carbonate as CaC03 mg/( 4 0 0 0 0 0 Chloride mg/l 22 19 16 18 14 14 18 18 Conductivity at 25C umhos/cm 1110 940 930 910 919 843 914 922 Hardness as CaC03 mg/l 19 19 19 22 12 17 Hydroxide as CaC03 mg/l 0 0 0 Magnesium, dissolved mg/l 2 1 1 1 1 1 1 1 Nitrogen, ammonia mg/l -0.02 -0.02 0.03 -0.02 0.02 -0.02 -0.02 0.1 Nitrogen, nitrate nitrite mg/l 0.6 0.21 0.28 0.18 0.34 0.18 0.25 0.12 pH ((ab) units 6.2 8.5 8.4 8.3 8.3 8.3 8.2 8.3 Temperature (field) deg [ 17 15.5 10 24.5 Phosphorus, ortho mg/l -0.02 -0.02 0.03 -0.02 0.07 0.06 0.02 0.07 SAR in ua ter 21.34 24.26 23.76 22.34 29.2 23.11 Sodi~an, dissolved mg/L 247 220 212 241 236 236 226 214 Sulfate mg/l 247 210 200 193 183 183 175 175 Anions (sum) mg/l 10.05 9.88 9.74 9.51 9.5 9.52 Solids, total dissolved ng/l 625 628 580 604 600 556 574 552 Solids, total suspended mg/l 10 10 6 14 8 10 12 Arsenic, dissolved mg/l -0.002 0.001 0.001 0.001 -0.001 -0.001 0.002 0.002 Cadmium, dissolved mg/l -0.005 -0.005 -0.005 -0.005 -0.005 -0.005 -0.005 -0.005 Iron, dissolved mg/l 0.15 0.35 -0.02 0.39 0.03 0.15 0.07 0.1 Manganese, dissolved mg/l -0.02 -0.01 -0.01 -0.01 -0.01 0.01 -0.01 0.01 Mercury, dissolved mg/l' -0.0005 -0.0005 •0.0002 -0.0002 -0.0002 -0.0002 -0.0002 -0.0002 Selenium, dissolved mg/t -0.002 -0.002 -0.002 -0.001 -O.OD1 -0.001 -0.001 -0.001 Zinc, dissolved mg/l 0.035 0.006 0.01 -0.01 0.01 -0.01 0.01 0.2