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PETITIONED PUBLIC HEALTH ASSESSMENT

LAFARGE CORPORATION - ALPENA PLANT
ALPENA, ALPENA COUNTY, MICHIGAN


APPENDIX B

Table 19. Concentrations of metals in sediment samples collected from Squaw Bay and Misery Bay (see Figure 3) during the IRIA, September-October 1997.

Chemical Concentration
(ppm)
No. of samples above MDEQ Industrial/Commercial
Criteria (Ref. 13)
No. of samples above MDEQ
Residential Criteria (Ref. 13)
Comparison Value
(ppm)
Maximum Median
arsenic 1.2 1 0 0 0.6E, 0.47C
barium 3.2 3.2 0 0 140R
beryllium ND ND ND ND 10R, 0.16C
bismuth ND ND ND ND NA
chromium ND ND ND ND 6R, carcinogen (VI)
copper 1.1 ND 0 0 NA
lead 1.6 1.2 0 0 carcinogen
manganese 48 27 0 0 NA
mercury 0.11 ND 0 0 NA
nickel 3.7 2 0 0 40R, carcinogen
selenium ND ND ND ND 10E
silver ND ND ND ND 10R
thallium ND ND ND ND NA

Reference: 3
Shaded chemicals exceeded ATSDR Comparison Values
ND -- Not Detected - for medians, in more than ½ of the samples
(VI) -- For chromium(VI)
NA -- None Available
carcinogen -- Carcinogen (proven, probable, or possible) but no CREG available

Comparison Value Bases:

E -- ATSDR Environmental Media Evaluation Guides (EMEGs), chronic exposure
R -- ATSDR Reference Dose Media Evaluation Guides (RMEGs), calculated from U.S. EPA Reference Dose
C -- ATSDR Cancer Risk Evaluation Guides (CREGs)


Table 20. Concentrations of contaminants in fish collected from Thunder Bay by the MDNR, 1983-1998.

 
Species Chemical Date Sample type Concentration
(ppm)
Reference MDCH First Level of Concern
(ppm)
Maximum Median
alewife alpha-chlordane 6/13/93 W 0.013 0.012 36 0.3A
gamma-chlordane 6/13/93 W 0.004 0.004 36
cis-nonachlor 6/13/93 W 0.022 0.018 36
trans-nonachlor 6/13/93 W 0.028 0.023 36
oxy-chlordane 6/13/93 W 0.003 0.003 36
total chlordane 6/13/93 W 0.062 0.059 36
4,4'-DDD 6/13/93 W 0.007 0.007 36 5A
4,4'-DDE 6/13/93 W 0.131 0.118 36
4,4'-DDT 6/13/93 W 0.014 0.013 36
total DDT 6/13/93 W 0.152 0.137 36
dieldrin 6/13/93 W 0.025 0.024 36 0.3A
heptachlor epoxide 6/13/93 W 0.006 0.005 36 0.3A
hexachlorobenzene 6/13/93 W 0.003 0.003 36 0.2-0.5B
mercury 6/13/93 W 0.06 0.05 36 0.5C
PCBs (total) 6/13/93 W 0.264 0.264 36 0.05D
toxaphene 6/13/93 W 0.15 0.138 36 10A
brown trout alpha-chlordane 10/10/85 F 0.04 0.04 37 0.3A
10/15/90 F 0.023 0.014 38
6/19/91 F 0.029 0.015 39
6/1/92 F 0.013 0.010 35
8/12-25/93 F 0.017 0.012 36
gamma-chlordane 10/10/85 F 0.02 0.01 37
10/15/90 F 0.017 ND 38
6/19/91 F 0.012 0.004 39
6/1/92 F 0.004 0.003 35
8/12-25/93 F 0.004 ND 36
cis-nonachlor 10/10/85 F 0.02 0.02 37
10/15/90 F 0.058 0.024 38
6/19/91 F 0.026 0.017 39
6/1/92 F 0.036 0.026 35
8/12-25/93 F 0.033 0.029 36
trans-nonachlor 10/10/85 F 0.05 0.05 37
10/15/90 F 0.068 0.053 38
6/19/91 F 0.068 0.046 39
6/1/92 F 0.081 0.061 35
8/12-25/93 F 0.054 0.044 36
oxy-chlordane 10/10/85 F 0.04 0.04 37
10/15/90 F 0.015 0.009 38
6/19/91 F 0.011 0.009 39
6/1/92 F 0.014 0.009 35
8/12-25/93 F 0.014 0.011 36
total chlordane 10/10/85 F 0.17 0.16 37
10/15/90 F 0.171 0.101 38
6/19/91 F 0.146 0.087 39
total chlordane 6/1/92 F 0.144 0.109 35
8/12-25/93 F 0.151 0.093 36
copper 7/23/86 F 5.7 0.6 40 10-100B
4,4'-DDD 10/10/85 F ND ND 37 5A

10/15/90 F 0.043 0.029 38
6/19/91 F 0.034 0.023 39
6/1/92 F 0.041 0.025 35
8/12-25/93 F 0.027 0.023 36
4,4'-DDE 10/10/85 F 0.27 0.25 37
10/15/90 F 0.362 0.198 38
6/19/91 F 0.260 0.175 39
6/1/92 F 0.283 0.243 35
8/12-25/93 F 0.313 0.275 36
4,4'-DDT 10/10/85 F 0.04 0.03 37
10/15/90 F 0.042 0.029 38
6/19/91 F 0.078 0.025 39
6/1/92 F 0.038 0.031 35
8/12-25/93 F 0.033 0.027 36
total DDT 10/10/85 F 0.30 0.28 37
10/15/90 F 0.447 0.263 38
6/19/91 F 0.371 0.226 39
6/1/92 F 0.351 0.296 35
8/12-25/93 F 0.367 0.329 36
dieldrin 10/10/85 F 0.05 0.03 37 0.3A
10/15/90 F 0.039 0.033 38
6/19/91 F 0.054 0.047 39
6/1/92 F 0.040 0.032 35
8/12-25/93 F 0.055 0.049 36
heptachlor epoxide 10/15/90 F 0.011 0.007 38 0.3A
6/19/91 F 0.013 0.010 39
6/1/92 F 0.011 0.007 35
8/12-25/93 F 0.013 0.011 36
hexachlorobenzene 10/15/90 F 0.006 0.004 38 0.2-0.5B
6/19/91 F 0.006 0.005 39
6/1/92 F 0.016 0.004 35
8/12-25/93 F 0.006 0.005 36
mercury 7/23/86 F 0.17 0.14 40 0.5C
10/15/90 F 0.17 0.1 38
6/19/91 F 0.12 0.1 39
6/1/92 F 0.16 0.13 35
8/12-25/93 F 0.17 0.13 36
octachlorostyrene 10/15/90 F 0.003 0.002 38 NA
6/19/91 F 0.003 0.001 39
6/1/92 F 0.011 0.003 35
8/12-25/93 F 0.005 0.003 36
PCBs (total) 10/10/85 F 1.61 1.49 37 0.05D
7/23/86 F 2.77 1.94 40
10/15/90 F 0.884 0.595 38
6/19/91 F 0.790 0.460 39
6/1/92 F 0.944 0.675 35
8/12-25/93 F 0.855 0.764 36
toxaphene 10/15/90 F 0.425 0.25 38 10A
6/19/91 F 0.5 0.25 39
6/1/92 F 0.3 0.2 35
8/12-25/93 F 0.325 0.3 36
zinc 7/23/86 F 7.0 5.0 40 30-1,000B
carp alpha-chlordane 6/29/89 Fs 0.050 0.027 41 0.3A


6/4/92 W 0.016 0.008 35
6/14/93 Fs 0.034 0.015 36
6/27/94 W 0.054 0.025 36
6/16/95 W 0.016 0.013 42
gamma-chlordane 6/29/89 Fs 0.023 0.011 41
6/4/92 W 0.006 ND 35
6/14/93 Fs 0.008 0.005 36
6/27/94 W ND ND 36
6/16/95 W 0.005 0.005 42
cis-nonachlor 6/29/89 Fs 0.045 0.020 41
6/4/92 W 0.038 0.032 35
6/14/93 Fs 0.040 0.025 36
6/27/94 W 0.023 0.018 36
6/16/95 W 0.023 0.017 42
trans-nonachlor 6/29/89 Fs 0.058 0.028 41
6/4/92 W 0.111 0.038 35
6/14/93 Fs 0.059 0.034 36
6/27/94 W 0.084 0.044 36
6/16/95 W 0.042 0.026 42
oxy-chlordane 6/29/89 Fs 0.021 0.007 41
6/4/92 W 0.014 0.004 35
6/14/93 Fs 0.020 0.007 36
6/27/94 W 0.015 0.005 36
6/16/95 W 0.009 0.003 42
total chlordane 6/29/89 Fs 0.187 0.103 41
6/4/92 W 0.161 0.094 35
6/14/93 Fs 0.151 0.093 36
6/27/94 W 0.136 0.080 36
6/16/95 W 0.087 0.064 42
4,4'-DDD 6/29/89 Fs 0.179 0.109 41 5A


6/4/92 W 0.120 0.062 35
6/14/93 Fs 0.098 0.063 36
6/27/94 W 0.065 0.051 36
6/16/95 W 0.050 0.041 42
4,4'-DDE 6/29/89 Fs 1.016 0.541 41
6/4/92 W 1.020 0.203 35
6/14/93 Fs 1.290 0.465 36
6/27/94 W 0.682 0.456 36
6/16/95 W 0.714 0.363 42
4,4'-DDT 6/29/89 Fs 0.046 0.007 41
6/4/92 W 0.050 0.017 35
6/14/93 Fs 0.047 0.015 36
6/27/94 W 0.048 0.011 36
6/16/95 W 0.074 0.020 42
total DDT 6/29/89 Fs 1.241 0.658 41
6/4/92 W 1.146 0.264 35
6/14/93 Fs 1.405 0.534 36
6/27/94 W 0.749 0.510 36
6/16/95 W 0.826 0.431 42
dieldrin 6/29/89 Fs 0.027 0.010 41 0.3A
6/4/92 W 0.033 0.019 35
6/14/93 Fs 0.041 0.015 36
6/27/94 W 0.023 0.015 36
6/16/95 W 0.028 0.019 42
heptachlor epoxide 6/29/89 Fs 0.018 0.006 41 0.3A
6/4/92 W 0.013 0.004 35
6/14/93 Fs 0.021 0.008 36
6/27/94 W 0.014 0.008 36
6/16/95 W 0.010 0.004 42
heptachlorostyrene 6/29/89 Fs ND ND 41 NA
6/4/92 W ND ND 35
6/14/93 Fs 0.003 ND 36
6/27/94 W ND ND 36
6/16/95 W ND ND 42
hexachlorobenzene 6/29/89 Fs 0.006 0.003 41 0.2-0.5B
6/4/92 W 0.004 0.002 35
6/14/93 Fs 0.009 0.003 36
6/27/94 W 0.003 0.002 36
6/16/95 W 0.004 0.002 42
hexachlorostyrene 6/29/89 Fs ND ND 41 NA
6/4/92 W ND ND 35
6/14/93 Fs 0.002 ND 36
6/27/94 W ND ND 36
6/16/95 W ND ND 42
mercury 6/29/89 Fs 0.19 0.12 41 0.5C
6/4/92 W 0.17 0.11 35
6/14/93 Fs 0.41 0.17 36
6/27/94 W 0.13 0.045 36
6/16/95 W 0.16 0.13 42
octachlorostyrene 6/29/89 Fs 0.013 0.003 41 NA
6/4/92 W 0.006 0.001 35
6/14/93 Fs 0.034 0.007 36
6/27/94 W 0.006 0.004 36
6/16/95 W 0.006 0.002 42
PCBs (total) 6/29/89 Fs 3.76 1.41 41 0.05D
6/4/92 W 2.15 0.590 35
6/14/93 Fs 3.19 1.695 36
6/27/94 W 3.12 2.09 36
6/16/95 W 1.89 1.125 42
pentachlorostyrene 6/29/89 Fs ND ND 41 NA
6/4/92 W ND ND 35
6/14/93 Fs 0.012 0.005 36
6/27/94 W ND ND 36
6/16/95 W ND ND 42
toxaphene 6/29/89 Fs 0.3 0.15 41 10A
6/4/92 W 0.5 ND 35
6/14/93 Fs 0.125 ND 36
6/27/94 W ND ND 36
6/16/95 W ND ND 42
channel catfish alpha-chlordane 6/29/89 Fs 0.020 -- 41 0.3A
10/12/93 Fs 0.123 0.081 36
gamma-chlordane 6/29/89 Fs 0.009 -- 41
10/12/93 Fs 0.054 0.034 36
cis-nonachlor 6/29/89 Fs 0.019 -- 41
10/12/93 Fs 0.125 0.085 36
trans-nonachlor 6/29/89 Fs 0.022 -- 41
10/12/93 Fs 0.294 0.199 36
oxy-chlordane 6/29/89 Fs 0.005 -- 41
10/12/93 Fs 0.033 0.025 36
total chlordane 6/29/89 Fs 0.075 -- 41
10/12/93 Fs 0.629 0.423 36
4,4'-DDD 6/29/89 Fs 0.064 -- 41 5A
10/12/93 Fs 0.348 0.204 36
4,4'-DDE 6/29/89 Fs 0.229 -- 41
10/12/93 Fs 2.340 1.357 36
4,4'-DDT 6/29/89 Fs 0.021 -- 41
10/12/93 Fs 0.096 0.067 36
total DDT 6/29/89 Fs 0.314 -- 41
10/12/93 Fs 2.784 1.628 36
dieldrin 6/29/89 Fs 0.032 -- 41 0.3A
10/12/93 Fs 0.070 0.066 36
heptachlor epoxide 6/29/89 Fs 0.008 -- 41 0.3A
10/12/93 Fs 0.016 0.015 36
hexachlorobenzene 6/29/89 Fs 0.004 -- 41 0.2-0.5B
10/12/93 Fs 0.009 0.008 36
mercury 6/29/89 Fs 0.09 -- 41 0.5C
10/12/93 Fs 0.51 0.34 36
octachlorostyrene 6/29/89 Fs 0.005 -- 41 NA
10/12/93 Fs 0.032 0.019 36
PCBs (total) 6/29/89 Fs 1.4 -- 41 0.05D
10/12/93 Fs 31.8 16.6 36
toxaphene 6/29/89 Fs 0.25 -- 41 10A
10/12/93 Fs 0.75 0.513 36
chub alpha-chlordane 6/22-23/93 Fs 0.016 0.015 36 0.3A
6/23/93 W 0.030 0.020 36
gamma-chlordane 6/22-23/93 Fs 0.005 0.005 36
6/23/93 W 0.010 ND 36
cis-nonachlor 6/22-23/93 Fs 0.019 0.016 36
6/23/93 W 0.020 0.015 36
trans-nonachlor 6/22-23/93 Fs 0.029 0.025 36
6/23/93 W 0.035 0.024 36
oxy-chlordane 6/22-23/93 Fs 0.012 0.010 36
6/23/93 W 0.008 0.006 36
total chlordane 6/22-23/93 Fs 0.081 0.071 36
6/23/93 W 0.103 0.069 36
4,4'-DDD 6/22-23/93 Fs 0.014 0.011 36 5A
6/23/93 W 0.012 0.010 36
4,4'-DDE 6/22-23/93 Fs 0.113 0.102 36
6/23/93 W 0.169 0.107 36
4,4'-DDT 6/22-23/93 Fs 0.014 0.014 36
6/23/93 W 0.034 0.024 36
total DDT 6/22-23/93 Fs 0.141 0.127 36
6/23/93 W 0.215 0.141 36
dieldrin 6/22-23/93 Fs 0.046 0.041 36 0.3A
6/23/93 W 0.034 0.025 36
heptachlor epoxide 6/22-23/93 Fs 0.016 0.014 36 0.3A
6/23/93 W 0.019 0.013 36
hexachlorobenzene 6/22-23/93 Fs 0.002 0.002 36 0.2-0.5B
6/23/93 W 0.001 ND 36
mercury 6/22-23/93 Fs 0.08 0.08 36 0.5C
6/23/93 W 0.04 0.04 36
octachlorostyrene 6/22-23/93 Fs ND ND 36 NA
6/23/93 W 0.004 ND 36
PCBs (total) 6/22-23/93 Fs 0.234 0.207 36 0.05D
6/23/93 W 0.301 0.193 36
toxaphene 6/22-23/93 Fs 0.175 0.163 36 10A
6/23/93 W 0.275 0.188 36
lake trout alpha-chlordane 6/4/92 W 0.059 0.043 35 0.3A


6/14/93 F 0.056 0.034 36
6/27/94 W 0.067 0.034 36
6/16/95 W 0.061 0.041 42
6/26/96 F 0.038 0.022 42
8/22/98 W 0.047 0.017 43
gamma-chlordane 6/4/92 W 0.021 0.011 35
6/14/93 F 0.020 0.010 36
6/27/94 W 0.025 0.010 36
6/16/95 W 0.025 0.014 42
6/26/96 F 0.014 0.007 42
8/22/98 W 0.013 0.003 43
cis-nonachlor  6/4/92 W 0.081 0.059 35
6/14/93 F 0.070 0.054 36
6/27/94 W 0.084 0.049 36
6/16/95 W 0.068 0.043 42
6/26/96 F 0.046 0.026 42
8/22/98 W 0.057 0.028 43
trans-nonachlor  6/4/92 W 0.199 0.131 35
6/14/93 F 0.148 0.112 36
6/27/94 W 0.132 0.086 36
6/16/95 W 0.125 0.078 42
6/26/96 F 0.081 0.048 42
8/22/98 W 0.113 0.048 43
oxy-chlordane 6/4/92 W 0.032 0.027 35
6/14/93 F 0.024 0.020 36
6/27/94 W 0.030 0.014 36
6/16/95 W 0.024 0.015 42
6/26/96 F 0.013 0.008 42
8/22/98 W 0.020 0.009 43
total chlordane 6/4/92 W 0.376 0.281 35
6/14/93 F 0.305 0.193 36
6/27/94 W 0.301 0.191 36
6/16/95 W 0.278 0.180 42
6/26/96 F 0.177 0.110 42
8/22/98 W 0.228 0.109 43
4,4'-DDD 6/4/92 W 0.088 0.055 35 5A



6/14/93 F 0.053 0.036 36
6/27/94 W 0.050 0.032 36
6/16/95 W 0.053 0.034 42
6/26/96 F 0.036 0.024 42
8/22/98 W 0.040 0.024 43
4,4'-DDE 6/4/92 W 0.890 0.489 35
6/14/93 F 0.611 0.438 36
6/27/94 W 0.618 0.438 36
6/16/95 W 0.723 0.419 42
6/26/96 F 0.487 0.236 42
8/22/98 W 0.527 0.315 43
4,4'-DDT 6/4/92 W 0.118 0.078 35
6/14/93 F 0.075 0.062 36
6/27/94 W 0.090 0.060 36
6/16/95 W 0.104 0.049 42
6/26/96 F 0.068 0.041 42
8/22/98 W 0.077 0.033 43
total DDT 6/4/92 W 1.096 0.613 35
6/14/93 F 0.712 0.488 36
6/27/94 W 0.758 0.527 36
6/16/95 W 0.853 0.515 42
6/26/96 F 0.582 0.306 42
8/22/98 W 0.628 0.367 43
dieldrin 6/4/92 W 0.136 0.088 35 0.3A
6/14/93 F 0.092 0.056 36
6/27/94 W 0.124 0.059 36
6/16/95 W 0.128 0.063 42
6/26/96 F 0.059 0.050 42
8/22/98 W 0.077 0.043 43
dioxins and furans (total) 1983-88 W 0.000141 0.000069 35 0.000010B


6/4/92 W 0.000064 0.000052 42
6/14/93 F 0.000057 0.000040 44
6/27/94 W 0.000061 0.000039 44
8/22/98 W 0.000060 0.000045 43
2,3,7,8-TCDD 1983-88 W 0.000015 0.000010 35
6/4/92 W 0.000008 0.000005 42
6/14/93 F 0.000005 0.000004 44
6/27/94 W 0.000005 0.000004 44
8/22/98 W 0.000004 0.000003 43
TEQ 1983-88 W 0.000038 0.000026 35
6/4/92 W 0.000022 0.000013 42
6/14/93 F 0.000017 0.000012 44
6/27/94 W 0.000018 0.000013 44
8/22/98 W 0.000016 0.000012 43
heptachlor epoxide 6/4/92 W 0.038 0.019 35 0.3A
6/14/93 F 0.023 0.013 36
6/27/94 W 0.033 0.015 36
6/16/95 W 0.028 0.014 42
6/26/96 F 0.012 0.010 42
8/22/98 W 0.014 0.007 43
hexachlorobenzene 6/4/92 W 0.011 0.009 35 0.2-0.5B
6/14/93 F 0.009 0.006 36
6/27/94 W 0.011 0.006 36
6/16/95 W 0.061 0.008 42
6/26/96 F 0.006 0.004 42
8/22/98 W 0.006 0.005 43
mercury 6/4/92 W 0.17 0.13 35 0.5C
6/14/93 F 0.30 0.19 36
6/27/94 W 0.28 0.165 36
6/16/95 W 0.22 0.145 42
6/26/96 F 0.28 0.14 42
8/22/98 W 0.19 0.14 43
octachlorostyrene 6/4/92 W 0.007 0.003 35 NA
6/14/93 F 0.004 0.003 36
6/27/94 W 0.005 0.003 36
6/16/95 W 0.004 0.003 42
6/26/96 F 0.002 0.002 42
8/22/98 W 0.003 0.002 43
PCBs (total) 6/4/92 W 2.04 1.19 35 0.05D
6/14/93 F 1.39 1.024 36
6/27/94 W 1.80 1.335 36
6/16/95 W 1.68 1.09 42
6/26/96 F 1.20 0.637 42
8/22/98 W 1.22 1.003 43
toxaphene 6/4/92 W 2.0 1.2 35 10A
6/14/93 F 0.475 0.350 36
6/27/94 W 0.775 0.413 36
6/16/95 W 0.70 0.50 42
6/26/96 F 0.525 0.338 42
8/22/98 W 0.55 0.35 43
lake whitefish alpha-chlordane 6/1/92 F 0.017 0.014 35 0.3A

6/26/96 F 0.023 0.008 42
8/20/98 F 0.009 0.006 43
gamma-chlordane 6/1/92 F 0.009 0.007 35
6/26/96 F 0.010 0.004 42
8/20/98 F 0.005 ND 43
cis-nonachlor 6/1/92 F 0.019 0.016 35
6/26/96 F 0.036 0.015 42
8/20/98 F 0.026 0.014 43
trans-nonachlor 6/1/92 F 0.061 0.034 35
6/26/96 F 0.083 0.041 42
8/20/98 F 0.064 0.022 43
oxy-chlordane 6/1/92 F 0.017 0.011 35
6/26/96 F 0.018 0.010 42
8/20/98 F 0.014 0.008 43
total chlordane 6/1/92 F 0.104 0.086 35
6/26/96 F 0.145 0.083 42
8/20/98 F 0.110 0.059 43
4,4'-DDD 6/1/92 F 0.021 0.016 35 5A

6/26/96 F 0.022 0.014 42
8/20/98 F 0.018 0.01 43
4,4'-DDE 6/1/92 F 0.255 0.110 35
6/26/96 F 0.246 0.158 42
8/20/98 F 0.262 0.118 43
4,4'-DDT 6/1/92 F 0.037 0.031 35
6/26/96 F 0.061 0.033 42
8/20/98 F 0.051 0.028 43
total DDT 6/1/92 F 0.312 0.156 35
6/26/96 F 0.329 0.203 42
8/20/98 F 0.32 0.156 43
dieldrin 6/1/92 F 0.109 0.067 35 0.3A
6/26/96 F 0.049 0.032 42
8/20/98 F 0.047 0.014 43
dioxins and furans (total) 8/20/98 F 0.000064 0.000032 43 0.000010E
2,3,7,8-TCDD 8/20/98 F 0.000004 0.000002 43
TEQ 8/20/98 F 0.000017 0.000008 43
heptachlor epoxide 6/1/92 F 0.046 0.025 35 0.3A
6/26/96 F 0.021 0.014 42
8/20/98 F 0.018 0.005 43
hexachlorobenzene 6/1/92 F 0.022 0.006 35 0.2-0.5B
6/26/96 F 0.005 0.004 42
8/20/98 F 0.004 0.003 43
mercury 6/1/92 F 0.07 0.05 35 0.5C
6/26/96 F 0.17 0.08 42
8/20/98 F 0.17 0.085 43
octachlorostyrene 6/1/92 F 0.003 ND 35 NA
6/26/96 F 0.001 ND 42
  8/20/98 F 0.002 ND 43
PCBs (total) 6/1/92 F 0.403 0.235 35 0.05D
6/26/96 F 0.620 0.293 42
8/20/98 F 0.738 0.265 43
toxaphene 6/1/92 F 0.25 0.2 35 10A
6/26/96 F 0.25 0.15 42
8/20/98 F 0.175 0.1 43
spottail shiner cis-nonachlor 9/15/95 W 0.005 0.004 42 0.3A
trans-nonachlor 9/15/95 W 0.010 0.007 42
total chlordane 9/15/95 W 0.012 0.010 42
4,4'-DDD 9/15/95 W 0.010 0.009 42 5A
4,4'-DDE 9/15/95 W 0.025 0.025 42
total DDT 9/15/95 W 0.035 0.034 42
mercury 9/15/95 W 0.03 0.03 42 0.5C
PCBs (total) 9/15/95 W 0.110 0.093 42 0.05D
walleye alpha-chlordane 6/29/89 F 0.021 0.003 41 0.3A



6/25/91 W 0.087 0.041 39
6/14/93 F 0.012 ND 36
6/16/95 W 0.055 0.015 42
9/15/95 W 0.106 0.027 42
8/22/98 W 0.055 0.026 43
gamma-chlordane 6/29/89 F 0.006 ND 41
6/25/91 W 0.030 0.012 39
6/14/93 F 0.003 ND 36
6/16/95 W 0.016 0.005 42
9/15/95 W 0.035 0.010 42
8/22/98 W 0.015 0.007 43
cis-nonachlor 6/29/89 F 0.022 0.003 41
6/25/91 W 0.091 0.034 39
6/14/93 F 0.016 ND 36
6/16/95 W 0.061 0.014 42
9/15/95 W 0.133 0.036 42
8/22/98 W 0.069 0.036 43
trans-nonachlor 6/29/89 F 0.034 0.006 41
6/25/91 W 0.231 0.121 39
6/14/93 F 0.032 0.010 36
6/16/95 W 0.124 0.038 42
9/15/95 W 0.198 0.073 42
8/22/98 W 0.153 0.063 43
oxy-chlordane 6/29/89 F 0.006 ND 41
6/25/91 W 0.024 0.014 39
6/14/93 F 0.004 ND 36
6/16/95 W 0.015 0.004 42
9/15/95 W 0.036 0.010 42
8/22/98 W 0.015 0.008 43
total chlordane 6/29/89 F 0.089 0.013 41
6/25/91 W 0.463 0.213 39
6/14/93 F 0.063 0.016 36
6/16/95 W 0.271 0.071 42
9/15/95 W 0.508 0.140 42
8/22/98 W 0.306 0.141 43
4,4'-DDD 6/29/89 F 0.020 0.005 41 5A


6/25/91 W 0.128 0.058 39
6/14/93 F 0.012 ND 36
6/16/95 W 0.053 0.018 42
9/15/95 W 0.345 0.077 42
8/22/98 W 0.08 0.044 43
4,4'-DDE 6/29/89 F 0.216 0.028 41
6/25/91 W 1.45 0.485 39
6/14/93 F 0.138 0.044 36
6/16/95 W 0.755 0.227 42
9/15/95 W 1.080 0.458 42
8/22/98 W 0.873 0.424 43
4,4'-DDT 6/29/89 F 0.038 0.005 41
6/25/91 W 0.148 0.044 39
6/14/93 F 0.019 ND 36
6/16/95 W 0.087 0.021 42
9/15/95 W 0.201 0.050 42
8/22/98 W 0.081 0.036 43
total DDT 6/29/89 F 0.274 0.038 41
6/25/91 W 1.73 0.558 41
6/14/93 F 0.168 0.050 39
6/16/95 W 0.895 0.248 36
9/15/95 W 1.626 0.588 42
8/22/98 W 1.034 0.500 43
dieldrin 6/29/89 F 0.020 0.006 41 0.3A
6/25/91 W 0.067 0.048 39
6/14/93 F 0.011 0.006 36
6/16/95 W 0.041 0.017 42
9/15/95 W 0.075 0.040 42
8/22/98 W 0.03 0.02 43
heptachlor epoxide 6/29/89 F 0.004 ND 41 0.3A
6/25/91 W 0.013 0.010 39
6/14/93 F 0.004 ND 36
6/16/95 W 0.006 ND 42
9/15/95 W 0.018 0.012 42
8/22/98 W 0.006 0.003 43
hexachlorobenzene 6/29/89 F 0.002 ND 41 0.2-0.5B
6/25/91 W 0.009 0.006 39
6/14/93 F 0.001 ND 36
6/16/95 W 0.005 0.003 42
9/15/95 W 0.017 0.006 42
8/22/98 W 0.004 0.003 43
mercury 6/29/89 F 0.51 0.155 41 0.5C
6/25/91 W 0.82 0.205 39
6/14/93 F 0.36 0.16 36
6/16/95 W 0.31 0.16 42
9/15/95 W 0.53 0.22 42
8/22/98 W 0.57 0.36 43
octachlorostyrene 6/29/89 F 0.002 ND 41 NA
6/25/91 W 0.010 0.005 39
6/14/93 F 0.001 ND 36
6/16/95 W 0.004 0.001 42
9/15/95 W 0.080 0.008 42
8/22/98 W 0.008 0.004 43
PCBs (total) 6/29/89 F 0.577 0.094 41 0.05D
6/25/91 W 3.93 1.695 39
6/14/93 F 0.310 0.117 36
6/16/95 W 1.93 0.677 42
9/15/95 W 7.74 1.32 42
8/22/98 W 3.121 1.403 43
toxaphene 6/29/89 F 0.35 0.063 41 10A
6/25/91 W 1.1 0.475 39
6/14/93 F 0.125 0.05 36
6/16/95 W 0.75 0.238 42
9/15/95 W 1.24 0.40 42
8/22/98 W 0.600 0.375 43

Shaded chemicals exceeded MDCH Levels of Concern
ND -- Not Detected - for medians, in more than ½ of the samples
NA -- None Available
-- = Not Relevant - only one sample collected.
W -- Whole fish samples
Fs -- Skin-off fillet samples
F -- Skin-on fillet samples

A U.S. FDA Tolerance Level

B International range of legal limits in fish (96). No MDCH or U.S. FDA Level of Concern.

C U.S. FDA Tolerance Level = 1.0 ppm

D U.S. FDA Tolerance Level = 2.0 ppm

E U.S. FDA Tolerance Level = 0.000025 ppm = 25 parts per trillion (ppt)


Table 21.
Concentrations of contaminants in fish collected from Lake Besser on the Thunder Bay River by the MDNR, 1989-1993.

Species Chemical Date Sample type Concentration
(ppm)
Reference MDCH First Level of Concern
(ppm)
Maximum Median
carp 4,4'-DDD 6/29/89 Fs 0.037 0.010 41 5A
10/15/93 W 0.078 0.051 45
4,4'-DDE 6/29/89 Fs 0.122 0.012 41
10/15/93 W 0.156 0.119 45
4,4'-DDT 6/29/89 Fs ND ND 41
10/15/93 W 0.006 ND 45
Total DDT 6/29/89 Fs 0.159 0.022 41
10/15/93 W 0.222 0.162 45
hexachlorobenzene 6/29/89 Fs ND ND 41 0.2-0.5B
10/15/93 W 0.002 ND 45
mercury 6/29/89 Fs 0.14 ND 41 0.5C
10/15/93 W 0.13 0.07 45
PCBs 6/29/89 Fs 0.065 ND 41 0.05D
10/15/93 W 0.307 0.108 45
redhorse sucker 4,4'-DDD 6/29/89 F 0.009 -- 41 5A
4,4'-DDE 6/29/89 F 0.017 -- 41
4,4'-DDT 6/29/89 F ND -- 41
Total DDT 6/29/89 F 0.026 -- 41
hexachlorobenzene 6/29/89 F ND -- 41 0.2-0.5B
mercury 6/29/89 F 0.14 -- 41 0.5C
PCBs 6/29/89 F ND -- 41 0.05D
smallmouth bass 4,4'-DDD 6/29/89 F ND ND 41 5A
4,4'-DDE 6/29/89 F 0.008 0.005 41
4,4'-DDT 6/29/89 F ND ND 41
Total DDT 6/29/89 F 0.008 0.005 41
hexachlorobenzene 6/29/89 F ND ND 41 0.2-0.5B
mercury 6/29/89 F 0.71 0.31 41 0.5C
PCBs 6/29/89 F ND ND 41 0.05D
walleye 4,4'-DDD 6/29/89 F 0.007 ND 41 5A
4,4'-DDE 6/29/89 F 0.038 0.016 41
4,4'-DDT 6/29/89 F ND ND 41
Total DDT 6/29/89 F 0.045 0.016 41
hexachlorobenzene 6/29/89 F ND ND 41 0.2-0.5B
mercury 6/29/89 F 0.86 0.42 41 0.5C
PCBs 6/29/89 F 0.067 ND 41 0.05D

Shaded chemicals exceeded MDCH Levels of Concern
ND -- Not Detected - for medians, in more than ½ of the samples
NA -- None Available
-- = Not Relevant - only one sample collected.
W -- Whole fish samples
Fs -- Skin-off fillet samples
F -- Skin-on fillet samples

A U.S. FDA Tolerance Level

B International range of legal limits in fish (96). No MDCH or U.S. FDA Level of Concern.

C U.S. FDA Tolerance Level = 1.0 ppm

D U.S. FDA Tolerance Level = 2.0 ppm


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