DOE/ORO/2327 Oak Ridge Reservation Annual Site Environmental ...

Annual Site Environmental Report
Table 3.14. Analytical results from sampling performed at storm water outfall 160
Gross alpha
(pCi/L)
Gross beta
(pCi/L)
U-233/234
(pCi/L)
U-235/236
(pCi/L)
U-238
(pCi/L)
Tc-99
(pCi/L)
Total U
(µg/L)
Screening level 15 50 20 24 24 4000 31
March 2001 114 49 66 4.32 38 84 No data
August 2001 48 49 37.38 1.78 7.42 54 No data
January 2002 1020 421 591.9 32.01 108.9 445 No data
February 2004 203 78.2 151.7 10.89 89.68 23.7 65.4
April 2007 98.2 56.3 85.9 5.04 21.2 78 37.5
November 2007 183 72.9 117 8.88 62.7 61.9 191
December 2007 845 152 547 30.3 202 96.2 615
January 2008 592 239 405 18.6 73.8 280 228
February 2008 188 47.5 130 6.31 21.1 54.1 65.7
March 2008 185/191 54.8/90.8 137/150 8.7/10.3 20.7/22.2 58.4/61.4 65.6/70.8
August 2008 296 135 216 10.3 59.7 213 182
December 2008 221 73.9 170 8.1 23.2 74.8 73.4
March 2009 568 131 491 22.7 73 174 230
September 2009 347 68.4 275 13.5 48 73.8 149
October 2009 312 43.9 205 14.9 60.2 41.5 186
Table 3.15. Analytical results from sampling performed at storm water outfall 170
Gross alpha
(pCi/L)
Gross beta
(pCi/L)
U-233/234
(pCi/L)
U-235/236
(pCi/L)
U-238
(pCi/L)
Tc-99
(pCi/L)
Total U
(µg/L)
Screening level 15 50 20 24 24 4000 31
January 2002 2.77 U 9.09 1.10 0.03 U 0.44 2.96 U No data
July 2002 2.46 U 15.2 1.32 0.05 U 0.57