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Surface Water Radiological Data
Annual Site Environmental Report for 1999
Table C.6 Radiological Effluent Data for Surface Water Location L5
Downstream Bayou Creek
..
Maximum
Anlilysis . Units Minimum Maximum Average Count
Count of of
Detectable Detection
Limits
Alpha Activity pCUL NO ND NO 2 0 3.76
Americium-241 pCUL ND ND ND 1 0 36.9
Beta Activity pCUL ND 19.27 9;63 2 6.37
Dissolved Alpha pCiIL NO 7.38 3.53 6 2 6.39
Dissolved Beta pCUL NO 53.56 34.13 6 5 17.35
Gamma Activity pCUL 77 15100 8940 6 5 42.3
Neptunium-237 pCUL NO ND ND 7 0 24.9
Plutonium-239/240 pCUL NO ND ND 7 0 1.19
Suspended Alpha pCilL ND 3.5 0.70 6 1 1.96
Suspended Beta pCilL ND ND ND 6 0 9.48
Technetium-99 pCUL ND ND ND 6 0 19.1
Thorium-230 pCilL NO ND ND 7 0 0.586 - ~'
Table C.7 Radiological Effluent Data for Surface Water Location La
Downstream Little Bayou Creek
Maximum
Analysis Units Mini ... um Maximum AVeFage Count
Count of of
Detectable Detection
. Limits
Alpha activity pCUL ND ND NO 2 0 3.8
Americium-241 pCUL ND ND NO 1 0 37.2
Beta activity pCUL ND 22.83 11.41 2 1 6.43
N eptunium-23 7 pCUL ND ND ND 0 25.5
Plutonium-2391240 pCilL ND ND ND 1 0 0.251
Technetium-99 pCUL ND NO NO 4 0 17.1
Thorium-230 pCUL ND NO ND 0 0.769
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Appendix C C-3