Table 7: Lead levels in fish from Big River, MDC Mammoth Access, Jefferson County,
1979 - 1994 (unpublished data, J. Czarnezki, MDC).
Species Lead Level(ppb) Year
Redhorse 450 1994
670 1993
550 1992
870 1991
400 1990
43 1987
440 1986
280 1984
320 1983
270 1982
415 1980
395 1979
Channel catfish 74 1994
51 1993
150 1992
160 1991
66 1990
225 1980
216 1979
Flathead catfish 30 1992
Sunfish 340 1994
1700 1993
440 1987
170 1986
180 1980
174 1979
Rock Bass 360 1994
Largemouth bass 160 1994
Smallmouth bass 40 1987
91 1986
150 1980
138 1979
Carp 440 1991
380 1987
370 1986
520 1980

*FDA action level = 300 parts per billion.

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