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TABLE 7 <br />1999 AHR <br />MW -23 WATER QUALITY DATA <br />PARAMETER <br />UNITS <br />Sample Dates: <br />02/25/99 09/29/99 <br />1999 <br />AVERAGE <br />MIN. <br />1979-1998 <br />AVE. <br />MAX. <br />pH (lab) <br />units <br />8.4 <br />8.5 <br />8.5 <br />6.2 <br />8.0 <br />8.8 <br />Conductivity_at 25C <br />umhos/cm <br />1050 <br />1100 <br />1075 <br />210 <br />869 <br />2020 <br />Temperature (field) <br />deg C <br />13.3 <br />15.0 <br />14.2 <br />10.0 <br />14.9 <br />24.5 <br />Solids, total dissolved <br />640 <br />710 <br />675 <br />156 <br />562 <br />1550 <br />- <br />Bicarbonate as CaC0 <br />mg/l <br />364 <br />368 <br />366 <br />150 <br />289 <br />373 <br />Calcium, dissolved <br />mg/l <br />2 <br />2 <br />2 <br />2 <br />9 <br />39 <br />Chloride <br />mg/l <br />18 <br />18 <br />18 <br />3 <br />16 <br />24 <br />Magnesium,_ dissolved <br />mg/l <br />0.3 <br />0.3 <br />0.3 <br />-1.0 <br />0.39 <br />0.7 <br />7.0 <br />Nitrogen, ammonia <br />mg/l <br />0.00 <br />0.00 <br />0.00 <br />-0.05 <br />5.50 <br />Nitrogen,_ nitrate nitrite <br />mg/I <br />0.64 <br />0.57 <br />0761 <br />0.04 <br />0.35 <br />0.64 <br />Phorus, ortho <br />hosp <br />mg/l <br />0.052 <br />0.053 <br />0.053 <br />-0.020 <br />0.036 <br />0.070 <br />Phosphorus, total <br />mg/l <br />n/a <br />.- 0.00.5_ <br />0.055 <br />0.073 <br />Sodium, dissolved <br />mgll <br />237 <br />265 <br />251 <br />29 <br />214 <br />576 <br />Sulfate <br />mg/l <br />150 <br />170 <br />160 <br />10 <br />172 <br />348 <br />Arsenic, dissolved <br />mg/l <br />0.000 <br />0.002 <br />0.001 <br />-0.002 <br />0.001 <br />0.002 <br />Cadmium,_ dissolved <br />mg/l <br />0.000 <br />0.000 <br />0.000 <br />-0.010 <br />-0.003_ <br />0.008 <br />Iron, dissolved <br />mg/l <br />0.05 <br />0.01 <br />0.03 <br />-0.02 <br />1.05 <br />24.20 <br />Manalanese, dissolved <br />_mom <br />0.00 <br />0.01 <br />0.00 <br />-0.10 <br />0.03 <br />0.70 <br />Mercury, dissolved <br />mg/l <br />0.0000 <br />0.0000 <br />0.0000 <br />- 0.0010 <br />- 0.0002 <br />0.0000 <br />Selenium, dissolved <br />mg/l <br />0.000 <br />0.000 <br />0.000 <br />-0.002 <br />0.000 <br />0.018 <br />Zinc, dissolved <br />mg/l <br />0.00 <br />0.00 <br />0.00 <br />-0.01 <br />0.02 <br />0.24 <br />NOTES: 1. Zero data values = parameter was analyzed for but not detected. <br />2. Blank data field = no data. <br />