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Paducah Site
Table 9.4 Summary of Maximum Groundwater Results at C-746-K
Analysis
MW MW MW MW
300 301 302 344
Metals Aluminum 27 NO 0.22 9.26
(mglL) , Arsenic NO NO NO 0"{)06
Arsenic, dissolved NA NA NA 0.006
Barium NO 0.099 0.228 0.131
Barium, dissolved NA 0.051 0.081 0.08
Cadmium NO NO NO NO
Iron 559 203 NO 16.1
Lead NO NO NO NO
Magnesium 137 47.7 26.4 25.2
Manganese 28.3 18.2 0.157 0.871
Nickel 0.29 0.05 NO NO
Potassium 18.1 22.2 NO 2.36
Sodium 36 26.3 102 36.5
Strontium 1.78 1.03 0.4 0.33
Uranium 0.005 0.005 NO NO
Uranium, dissolved 0.005 0.004, ' NA' NA
Rads Alpha activity NO 17.2 NO 5.38
(pC ilL) Beta activity NO 41.56 NO 14.19
99'J'c NO NO NO NO
VOCs 1,1-Dichloroethene 250 NO NO ND
(",gIL) I,I-Oichloroethane 110 NO NO ND
cis-I,2-0ichloroethene 2300 18 NO NO
Trichloroethene 120 NO NO NO
Other VOCs l NO NO NO NO
Other Chromium, hexavalent NO NO NO NO
(mg/L) Silica 44 19 41 16
Suspended Solids 35 106 NO 213
NO = not detected
NA = not analyzed
Other VOCs include: 1,I,I-Trichloroethane; 1,I,2-Trichloroethane; 1,2-
Dichloroethane; Benzene; Bromodichloromethane; Carbon tetrachloride;
Chloroform; Oimethylbenzene; Ethylbenzene; Tetrachloroethene; Toluene; trans-
1,2-Dichloroethene; and Vinyl chloride
This level of TCE is consistent with levels shown
at'this well in the past. TCE was also detected in
the McNairy at 160 fJg/L in MW 356. MW 356
was ftrst sampled in December 1999. Only one
other well completed in the McNairy (MW 133)
showed arty TCE detections (l fJgIL).
Three wells, MWs 345, 346, and 347, have
been installed penetrating the Rubble Zone, the
fonnation underlying the McNairy. Initial
sampling of the wells indicated no contamination.
9-16
Groundwater