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TABLE 7 <br /> 1997 AHR <br /> MW-23 WATER QUALITY DATA <br /> 1996/ <br /> Sample Dates: 1997 10/79- 6/96 <br /> PARAMETER UNITS 9/9/96 3/24/97 9/30/97 AVERAGE MIN. AVE. MAX. <br /> pH (lab) units 8.3 8.5 8.6 8.5 6.2 8.0 8.8 <br /> Conductiviti at 25C umhos/cm 1040 1020 1050 1037 210 846 2020 <br /> __.. . _._.........._._._....._._......._............................. - ....__._._. __..._... _--- .._.__....----- .._.__.....................----...._......._............_._........----.._.._......_.._........__.._-..-- -- - <br /> Temperature(field) deg C 15.8 13.2 15.4 14.8 10.0 14.9 24.5 <br /> Solids, total dissolved mg/I 630 660 640 643 156 551 1550 <br /> Bicarbonate as CaCO3 mg/1 <br /> 371 352 350 358 150 277 373 <br /> Calcium, dissolved I 3 3 3 3 3 10 39 <br /> Chloride mg/I 14 14 16 15 3 15 24 <br /> M nesium, dissolved 0.4 0.4 0.4 0.4 -1.0 0.7 7.0 <br /> Nitrogen, ammonia mgA 0.00 0.07 0.07 0.05 -0.05 0.44 5.50 <br /> Nitrogen, nitrate nitrite rngA 0.55 _ 0.54 _ 0.53 0.54 0.04 _0.31 _ _ 0.60 <br /> Phosphorus, ortho mg/I 0.058 0.054 0.060 0.057 -0.020 0.031 0.070 <br /> _Phosphorus, total _ rrx _-_- __ _ n1a- -0.005 0.055 0.073 <br /> Sodium, dissolved mg/l 238 262 272 257 29 209 576 <br /> Sulfate -__- I _- 160 150 150 153 10 174 348 <br /> Arsenic, dissolved mg/I 0.002 0.002 0.002 0.002 -0.002 0.000 0.002 <br /> Cadmium, dissolved Tgn 0.000 _ 0.000 0.000 0.000 -0.010 -_0.004 0.008 <br /> Iron, dissolved mg/I 0.16 0.08 0.01 -- - 0.08 - - -0.02 1.17 24.20 <br /> Manganese, dissolved mgn 0.01 0.00 0.00 0.00 -0.10 0.04 0.70 <br /> Mercury, dissolved mg/I 0.0000 0.0000 0.0000 0.0000 -0.0010 -0.0003 0.0000 <br /> Selenium, dissolved mg/I_ 0.000 0.000 0.000 0.000 -0.002 0.000 0.018 <br /> Zinc, dissolved mg/I 0.03 0.01 0.00 0.01 -0.01 0.02 0.24 <br /> NOTES: 1. Zero data values = parameter was analyzed for but not detected. <br /> 2. Blank data field = no data. <br />