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Annual Site Environmental Report for 1999
Table 9.2 Summary of Maximum Groundwater ResultS for C-746-S&T
Analysis
Downgradient Wells (MW###)
179 221 222 223 224 263 264 265 266
Metals Barium 0.46 0.205 0.223 0.205 ND 0.248 0.3 0.215 0.236 0.065 0.185 0.231 0,05
Barium, 0.161 0:206 0.22 0.133 NA 0.245 0.298 0.21 0.234 0.065 0.183 0.229 0.05
(mgIL) Dissolved
Chromium 1.16 ND 0.219 NO NO 0.082 0.07 0.074 ND 0.36 ND 1.86 0.766
Chromium, 0.05 ND 0.05 NO NA 0.05 0.05 0.05 ND 0.05 ND 0.05 0.05
Dissolved
Cobalt
0.05 0.05 ND 0.014 ND ND 0.05 ND ND ND ND ND ND
Iron
46.2 0.36 1.22 29.1 0.55 0.803 3.49 1.49 ND 1.2 0.67 10.9 5.74
Nickel
0.653 1.05 0.1 0,07 ND 0.61 0.883 0.78 ND ND ND 0.144 ND
Sodium 53.4 38.1 49.8 90.1 70,7 45;6 53.2 44.8 64.4 50.8 47.2 39.5 37.4
Uranium ND ND ND 0.003 ND ND ND ND ND ND ND ND ND
Uranium, NA NA NA 0.001 ND NA NA NA NA ND NA NA NA
Dissolved
Other Metals' ND ND ND ND ND ND ND ND ND ND ND ND ND
Rad Alpha activity 7.36 ND ND 6.24 7.96 10.93 ND ND ND ND ND ND ND
(pCilL) Beta activity 154.6 23.62 35.56 176.5 249.9 5];25 24.11 16.6 16.9 71.54 16.44 9.64 25.1
Technetium-99 151.7 26.1 32.6 238 199 30.3 21 21.2 ND 58.9 18.2 ND ND
VOC Trichloroethene 1 ND ND ND 6 3 ND ND 2 18 3 4 6
(uglL) Other VOCs 2 ND ND ND ND ND ND ND ND ND ND ND ND ND
Other Chemical Oxygen ND ND ND ND ND ND ND ND ND ND ND ND ND
Demand
Chloride (mgIL) 58.9 40.7 65.2 54.2 37.3 47.4 42.3 46.5 46.5 49.9 53.6 34.6 48.2
Dissolved Solids 284 215 251 901 571 249 284 247 386 327 305 277 344
(mgIL)
Nitrate as 2 2.3 2.9 1.4 ND 1.7 1.7 .2.3 1.7 1.6 ND ND 1.2
Nitrogen (mgIL)
Total Organic 1.5 1.2 1.2 3.2 1.5 1.1 1.2 1.1 2 1.1 1.7
Carbon (mgIL)
Total Organic ND ND ND ND ND ND ND ND ND ND ND ND ND
Halides (uglL)
Turbidity (NTU) 700 5.1 4.1 750 4.9 3.5 34 49 0.5 5.9 6.5 75 32
ND = not detected
NA = not analyzed
, Other metals include: Antimony; Arsenic; Beryllium; Cadmium; Copper; Lead; Mercury; Selenium;
Silver; Thallium; Vanadium; Zinc
2 Other VOCs include: 1,1,1,2-Tetrachloroethane; 1,1 , I-Trichloroethane; 1, 1,2,2-Tetrachloroethane;
1,1,2-Trichloroethane; 1,1-Dichloroethane; 1, I-Dichloroethene; T,2,3~Trichloropropane; 1,2-Dibromo-
3-chloropropane; 1 ,2-Dibromoethane;>1,2-Dichlorobenzene; 1 ,2~Dichloroethane; 1,2-Dichloropropane;
1.4- ichlorobenzene; 2-Butanone; 2-Ghloroethyl vinyl ether; 2-Hexanone; 4-Methyl-2-pentanone;
Acetone; Acrolein; Acrylonitrile; Benzene; Btomochloromethane; Bromodichloromethane;
Bromoform; Bromomethane; 'Carbon disulfide; Carbon tetrachloride; Chlorobenzene; Chloroethane;
Chloroform;Chloromethane;,cisc 1 ,2-Dichloroethene; cis-l,3-Dichloropropene;
Dibromochloromethane; Bibromomethane; Dichlorodifluoromethane; Dimethylbenzene; Ethanol;
Ethyl methacrylate; Ethylbenzene; Iodomethane; Methylene chloride; Styrene; Tetrachloroethene;
Toluene; trans-l ,2-Dichloroethene; trans-} ,3-Dichloropropene; Trans-} ,4-Dichloro-2-butene;
Trichlorofluoromethane; Vinyl acetate; and Vinyl chloride
Groundwater 9·13