MEMORANDUM 

TO: Bill Swietlik, EPA 

FROM: Kristi Bubb and Patrick Goodwin, ERG 

DATE: April 19, 2013 

SUBJECT: EA Model Validation and Calibration (DCN SE03576) 

 This memorandum documents the methodology used to validate and calibrate the models 

used in the environmental assessment (EA) for the proposed effluent limitations guidelines and 

standards (ELGs) for the steam electric power generating point source category. ERG focused 

the validation/calibration methodology by evaluating the fish tissue concentrations for arsenic, 

lead, and mercury because these are the primary pollutants used in the human health effects 

analyses in EPA’s Benefit and Cost Analysis for the Proposed Effluent Limitations Guidelines 

and Standards for the Steam Electric Power Generating Point Source Category (Benefits and 

Cost Analysis) (DCN SE03172). This memorandum presents the validation measures ERG 

performed for receiving water concentrations used to estimate fish tissue concentrations, the 

validation methodology used to evaluate the fish tissue concentrations calculated by the wildlife 

model, and the calibration methodology used to set calibration factors for the mercury fish tissue 

concentrations and subsequent human exposure doses from fish consumption (which were then 

used in the Benefits and Cost Analysis). 

1. VALIDATION OF RECEIVING WATER CONCENTRATIONS

 ERG used a steady state equilibrium-partitioning model to calculate concentrations of 

dissolved and sorbed metals in the surface water where steam electric industry discharges occur 

(the “immediate receiving water”).1,2 As part of the Benefits and Cost Analysis, EPA also 

calculated total surface water concentrations downstream from steam electric discharges using 

EPA’s Risk-Screening Environmental Indicators (RSEI) model.3

 For the purposes of this 

memorandum, ERG will refer to model results from the equilibrium-partitioning model as the 

“immediate receiving water model” and model results from RSEI as the “downstream receiving 

water model.” 

ERG identified a limited amount of site-specific data in the literature to validate the 

receiving water concentrations estimated in the two models. Table 1 presents measured pollutant 

 

1

 ERG defined the immediate receiving water as the initial stream segment within the National Hydrography Dataset 

Plus (NHD Plus) where the discharge outfalls are located. The immediate receiving waters identified in NHD Plus 

ranged between one and five miles downstream from a steam electric outfall, depending on the stream reach. 

2

 For further details on the steady state equilibrium-partitioning model methodology and assumptions see EPA’s 

Environmental Assessment for the Proposed Effluent Limitations Guidelines and Standards for the Steam Electric 

Power Generating Point Source Category (EA Report) (DCN SE01995). 

3

 For further details on the RSEI model methodology and assumptions for the downstream waters, see the Benefits 

and Cost Analysis. 
Memorandum 

April 19, 2013 

Page 2 

concentrations reported in the literature for two sites modeled in the EA. ERG compared the 

site-specific modeled receiving water concentrations against the measured values and determined 

that the concentrations calculated from both modeling methodologies were less than the reported 

measured values. This result is not unexpected as neither model includes all possible pollutant 

loading sources to the water body (e.g., non-point runoff) and neither model accounts for natural 

background concentrations that may be present within the water body. Attachment 1 presents the 

baseline modeled concentrations from the immediate and downstream receiving water models 

compared with the site-specific measured values presented in Table 1. 

Table 1. Site-Specific Measured Receiving Water Concentrations Downstream from Steam 

Electric Discharges 

Plant Name Receiving Water 

Name Pollutant 

Surface Water 

Concentration 

(mg/L) 

Literature 

Source 

Roxboro Steam 

Plant Hyco Reservoir Total Selenium 0.009 - 0.012 Baumann, 1986 

Roxboro Steam 

Plant Hyco Reservoir Total Selenium 0.0032 Crutchfield, 2000 

Riverbend Steam 

Station Mountain Island Lake Total Arsenic 0.01 - 0.05 a

 Charlotte Observer, 2010 

Riverbend Steam 

Station Mountain Island Lake Total Zinc 0.05 - 0.086 b

 Charlotte Observer, 2010 

a- County staff detected total arsenic at levels above state standards. Ranges presented reflect state standards for 

freshwater and saltwater aquatic life, water supply, and human health. 

b- County staff detected zinc at nearly four times state standards. Ranges presented reflect state standards for 

freshwater and saltwater aquatic life. 

 As an assessment of the reasonability of the remaining modeled receiving water 

concentrations with no site-specific measured data for comparison, ERG compared modeled 

receiving water concentrations to measured receiving water concentrations downstream from 

steam electric discharges reported in the literature for the following three sites: 

 Measured surface water concentrations in Belews Lake immediately following the 

discharge of combustion waste water into the lake (Cumbie, 1978); 

 Measured surface water concentrations in Sting Run following discharge from a 

combustion residuals surface impoundment (Reash et al., 1988); and 

 Measured surface water concentrations in Little Scary Creek following discharge from a 

combustion residuals surface impoundment (Reash et al., 1999). 

Although these three sites are not included in the models for comparison, ERG used the 

measured concentration at these sites as surrogate values to evaluate the reasonability of modeled 

receiving concentrations when site-specific data was unavailable. Table 2 presents the measured 

surface water concentrations reported in the above literature sources and the number of stream 

segments (i.e., COMIDs) in each water quality model that exceeded the measured value.4

 ERG 

 

4

 A COMID is the unique identifier for stream segments designated in the NHD Plus dataset. 
Memorandum 

April 19, 2013 

Page 3 

determined that over 90 percent of the COMIDs in the models with no site-specific data for 

comparison were less than the surrogate concentrations identified for comparison. 

 For the COMIDs that exceeded the surrogate surface water concentrations, ERG assessed 

the order of magnitude by which the modeled concentrations exceeded the measured values. 

ERG used the measured data from Belews Lake as the order of magnitude benchmark for 

comparison because Belews Lake reported the lowest measured surface water concentrations 

among the three surrogate sites. Of those COMIDs whose modeled arsenic concentrations 

exceeded the concentrations measured at Belews Lake, more than half were within the same 

order of magnitude as the measured concentration (10 of 19 COMIDs in the immediate receiving 

water model and 58 of 99 COMIDs in the downstream receiving water model). Of those 

COMIDs whose modeled selenium concentrations exceeded the concentrations measured at 

Belews Lake, more than 40 percent were within the same order of magnitude as the measured 

concentration (12 of 28 COMIDs in the immediate receiving water model and 138 of 249 

COMIDs in the downstream receiving water model). Attachment 2 presents the modeled values 

that exceed each of the measured values presented in Table 2. 

Table 2. Number of COMIDs whose Modeled Surface Water Concentration Values Exceed 

Measured Values

Receiving Water 

Name Pollutant 

Measured 

Surface Water 

Concentration 

(mg/L) 

Number of COMIDs that Exceed Measured 

Surface Water Concentration 

Immediate Receiving 

Water Model a

Downstream 

Receiving Water 

Model b

Belews Lake Total Arsenic 0.010 19 (6%) 99 (<1%) 

Total Selenium 0.014 28 (9%) 249 (1%) 

Sting Run Total Arsenic 0.024 12 (4%) 67 (<1%) 

Total Selenium 0.014 28 (9%) 249 (1%) 

Little Scary Creek Total Arsenic 0.064 9 (3%) 50 (<1%) 

Total Selenium 0.032 24 (8%) 176 (<1%) 

a- The equilibrium-partitioning model (i.e., immediate receiving water analysis) evaluated a total of 297 COMIDs 

as immediate receiving waters for the steam electric discharges evaluated in the EA (ERG, 2013a). 

b- The RSEI model (i.e., downstream receiving water analysis) evaluated a total of 24,439 COMIDs downstream 

from the steam electric discharges evaluated in the EA (ERG, 2013b). 

 Of the COMIDs identified in Attachment 2 as having modeled values that exceed the 

measured surface water concentrations, the majority are stream segments with very low surface 

water flows (e.g., < 69 cubic feet per second (cfs)), which will result in minimal dilution of the 

pollutant loadings present in the steam electric waste streams evaluated in the EA. ERG 

anticipates that the modeled surface water concentrations in these low-flow surface waters would 

be roughly equivalent to the pollutant concentrations observed in combustion residual surface 

impoundments. As an assessment of reasonability, ERG compared the maximum modeled 

receiving water concentrations to the maximum measured pollutant concentrations in combustion 

residual surface impoundments reported in the literature. The maximum total selenium 

concentration in the immediate receiving water model was 3.57 mg/L and the maximum 

concentration in the downstream receiving water model was 2.54 mg/L. Both concentrations are 

within the same order of magnitude as the total selenium concentration of 2.70 mg/L measured in 

the combustion residual surface impoundment discharging into Martin Creek Reservoir (Garrett 
Memorandum 

April 19, 2013 

Page 4 

and Inman, 1984). The maximum total arsenic concentration in the immediate receiving water 

model was 2.22 mg/L and the maximum concentration in the downstream receiving water model 

was 1.22 mg/L. Both concentrations are within one order of magnitude of the total arsenic 

concentration of 0.253 mg/L measured in the ash effluent discharged into Belews Lake (Cumbie, 

1978). Pollutant composition and concentrations can vary widely among and within combustion 

residual surface impoundments; therefore, ERG considered a difference of one order of 

magnitude between the modeled and measured total arsenic values as reasonable for the purposes 

of the modeling fish tissue concentrations. 

 ERG did not identify any measured surface water concentrations for lead or mercury 

downstream from steam electric discharges, and therefore was unable to perform a similar 

comparison analysis for those two pollutants. However, the results of the comparison analysis 

between modeled and measured concentrations described above suggests that the modeled 

receiving water concentrations in the immediate and downstream surface waters are reasonable 

for estimating fish tissue concentrations in the wildlife model: 

 Modeled receiving water concentrations were less than site-specific values available for 

comparison (Table 1); 

 The majority of receiving water concentrations (i.e., greater than 90 percent) were less 

than the measured surrogate surface water concentrations available for comparison; 

 Greater than 40 percent of modeled receiving water concentrations that exceeded the 

surrogate values were within the same order of magnitude as the surrogate values; and 

 Modeled receiving water concentrations that were greater than an order of magnitude 

above the surrogate value were surface waters with low flow (<69 cfs), which would 

offer minimal dilution of the discharge. These outlier values were within an order of 

magnitude of measured pollutant concentrations in combustion residual surface 

impoundments. 

Based on these results, ERG determined that the modeled receiving water concentrations were 

reasonable and used the receiving water model results to estimate fish tissue concentrations in 

the wildlife model. 
Memorandum 

April 19, 2013 

Page 5 

2. VALIDATION OF FISH TISSUE CONCENTRATIONS

 ERG identified the following data sources of measured fish tissue concentrations for 

comparison with modeled values: 

 EPA’s National Lake Fish Study (NLFS) database;5

 and 

 EPA’s National Listing of Fish Advisories (NLFA) database.6 

ERG searched the two fish tissue databases for the names of the 36 lakes included in the water 

quality models and extracted available measured arsenic, lead, and mercury fish tissue 

concentrations for comparison with modeled values. ERG also contacted the Surface Water 

Quality Monitoring and Assessment Program at the Illinois EPA to obtain fish sampling data for 

one lake included in the EA. ERG identified lake-specific fish tissue data for 18 lakes included in 

the water quality models. Attachment 3 summarizes the site-specific fish tissue sampling data 

available for comparison with model results in lakes. 

 ERG created a geographical information systems (GIS) point layer of fish sampling 

locations based on latitude and longitude values provided in the NLFA fish tissue sampling 

database. ERG spatially joined the NLFA sampling location point layer with a GIS line layer of 

the NHD Plus COMID stream segments identified in the immediate and downstream receiving 

water models using a 500 foot buffer. Based on the spatial join, ERG identified the COMID 

associated with each sampling location; extracted arsenic, lead, and mercury fish concentration 

data from the NLFA fish tissue database; and linked the site-specific data to the appropriate 

COMID for comparison with modeled results. ERG identified river-specific fish tissue data for 

1.6 percent of the COMIDs included in the two models (383 of 24,439 COMIDs). Attachment 4 

summarizes the site-specific fish tissue sampling data available for comparison with model 

results in rivers. 

 For each COMID with measured data available, ERG compared the modeled fish tissue 

concentrations for a given trophic level (i.e., T3 or T4) to the maximum measured fish tissue 

concentration for that site and trophic level. ERG set a threshold that the modeled concentration 

was valid if the modeled value was within one order of magnitude of the maximum sampled 

value for that site and trophic level. ERG selected one order of magnitude as the threshold for 

validation based on the following three limitations of the data: 

 Many of the fish tissue samples were limited in nature (i.e., 1 or 2 samples); 

 

5

 This database presents the raw results from EPA’s lake fish study conducted between 2000 and 2003. EPA 

collected fish tissue samples from 500 lakes and reservoirs selected randomly from the estimated 147,000 target 

lakes and reservoirs in the lower 48 states. For further information on EPA’s lake study see 

http://water.epa.gov/scitech/swguidance/fishstudies/lakefishtissue_index.cfm. 

6

 This database presents the raw sampling data for lakes and rivers from EPA’s NLFA database collected between 

1967 and 2007. For further information on EPA’s NLFA see: 

http://water.epa.gov/scitech/swguidance/fishshellfish/fishadvisories/index.cfm. 
Memorandum 

April 19, 2013 

Page 6 

 Many of the fish tissue samples were collected more than 10 years ago and may not 

reflect current concentrations in the receiving waters. For example, older measured 

data may not reflect changes in pollutant loadings from steam electric plants over 

time as treatment systems change or the potential for pollutants to accumulate in lakes 

since the sample data were collected; and 

 For some receiving waters it was difficult to determine whether the sample was 

collected upstream or downstream of the steam electric outfall. 

 As an assessment of the reasonability of the modeled fish tissue concentrations with no 

site-specific data identified for comparison, ERG compared modeled values with the maximum 

measured fish tissue concentrations (by trophic level and receiving water type) reported in the 

entire National Lake Fish Tissue study sample database and NLFA fish tissue database. Fish 

tissue concentrations were assumed reasonable if the modeled value was within the same order 

of magnitude as the identified maximum measured values. In contrast to the site-specific 

comparison where there are potential explanations for the discrepancy between measured and 

modeled concentrations, ERG selected a same order of magnitude threshold to limit the modeled 

values to within the range of known reported fish tissue concentrations as a worst case scenario. 

Table 3 presents the maximum measured fish tissue concentrations for arsenic, lead, and mercury 

identified for comparison in the fish tissue databases. 

Table 3. Maximum Measured Fish Tissue Concentrations 

Pollutant Site Name Receiving Water 

Type 

Fish Species 

(Fish Trophic 

Level) 

Fish Tissue 

Concentration 

(mg/kg) 

Source 

Arsenic Lake Hartwell Lake T4 66.2 NLFA 

Arsenic Cape Fear River River T4 7.5 NLFA

Lead Lake Sinclair Lake T4 11.61 NLFA

Lead Chattanooga Creek River T3 33 NLFA

Mercury Center Hill Reservoir Lake T4 29 NLFA

Mercury Cape Fear River River T4 9.8 NLFA

Mercury Cuxabexis Lake Lake T3 1.45 NLFS 

Source: U.S. EPA, 2013. 

NLFA- National Listing of Fish Advisories database. 

NLFS- National Lake Fish Study database. 

 Based on comparison with site-specific and maximum measured fish tissue 

concentrations (Tables 2 and 3), ERG determined that the arsenic and lead fish tissue 

concentrations calculated in the immediate and downstream models do not exceed the order of 

magnitude thresholds established for model validation. However, ERG identified 42 COMIDs 

(14 percent) in the immediate receiving water model and 1,237 COMIDs (5 percent) in the 

downstream receiving water model that exceed the order of magnitude comparison thresholds for 

mercury fish tissue concentrations. Therefore, as described in the following section, ERG 

developed an approach for applying calibration factors to these modeled mercury fish tissue 

concentrations. 
Memorandum 

April 19, 2013 

Page 7 

3. MERCURY CALIBRATION FACTORS

 The wildlife model calculates fish tissue concentrations by multiplying modeled 

receiving water concentrations by pollutant specific bioconcentration factors.7 Bioconcentration 

factors are a simplified methodology for estimating fish tissue concentrations from surface water 

concentrations with some inherent assumptions and uncertainties associated with the 

methodology. Bioconcentration factors do not fully account for the complexity of 

biogeochemical reactions that can occur within an aquatic environment and result in lower 

bioaccumulation rates in fish such as the form or species of the pollutant within the water body 

or interference that may result from other pollutants present in the water body. In addition, 

bioconcentration factors do not account for a maximum limit a fish could accumulate before a 

lethal concentration is reached. 

 In the case of mercury, the formation of methylmercury is a crucial step in the 

bioaccumulation8

 of mercury within the aquatic foodweb as methlymercury is more easily 

accumulated than other forms of mercury. Bacteria found in anaerobic conditions, such as those 

that may be present in sediments found on the bottom of combustion residuals surface 

impoundments or in river sediments, convert mercury to methylmercury through a process called 

methylation (WHO, 1976). Microbial methylation rates increase in acidic and anoxic 

environments with high concentrations of organic matter. The equations used in the wildlife 

model assume that 15 percent of total mercury is dissolved in the water column as 

methylmercury. In some water bodies, depending on site-specific conditions, this may be an over 

estimate of the methylation rate and may result in an over estimate of the amount of mercury that 

will bioaccumulate in fish. Another factor that could lower mercury bioaccumulation rates in fish 

within a water body is that fish are known to bioaccumulate mercury at lower rates when 

exposed to surface waters with high selenium concentrations. High selenium concentrations are 

frequently associated with surface waters impacted by combustion waste water discharges and, 

therefore, the elevated selenium concentrations may inhibit mercury accumulation in fish (WHO, 

1976). For these reasons, the bioaccumulation factor methodology may overestimate mercury 

fish tissue concentrations in some receiving waters. 

 Based on the validation methodology outlined in Section 2, ERG identified a subset of 

COMIDs that may overestimate mercury fish tissue concentrations and require a calibration 

factor to account for other influences in the aquatic environment that may inhibit or limit 

mercury bioaccumulation in fish. ERG used the following criteria to establish calibration factors 

for mercury fish tissue concentrations in the identified COMIDs: 

 If modeled mercury fish tissue concentrations exceed the maximum concentration 

measured at the site, ERG selected a calibration factor to lower the modeled mercury fish 

tissue concentration to within one order of magnitude of the maximum site-specific 

sampled value. 

 

7

 For further details on the equations and bioconcentration factors used in the wildlife model see Appendix D of the 

EA Report. 

8

 The process by which pollutants are taken up by an organism either directly from exposure to a contaminated 

medium or by consumption of food containing the chemical. 
Memorandum 

April 19, 2013 

Page 8 

 If the modeled mercury fish tissue value exceeded 9.8 mg/kg for a trophic level four (T4) 

fish, ERG selected a calibration factor to lower the modeled value to within the same 

order of magnitude as 9.8 mg/kg (i.e., less than 10 mg/kg). 

ERG selected 10 mg/kg as the cap for all modeled values based on the maximum fish tissue 

concentration of 9.8 mg/kg for T4 fish reported in the NLFA fish tissue sampling database for 

river systems. Although the maximum measured mercury fish tissue concentration for lakes was 

higher (29 mg/kg), ERG selected the maximum mercury fish tissue concentration in rivers as the 

cap for all modeled values because the majority of water bodies included in the modeling 

analysis are river systems and the majority of the site-specific data available for lakes that 

receive steam electric discharges (Table 3-3 in Attachment 3) were two orders of magnitude less 

than the 29 mg/kg mercury measured in Center Hill Reservoir.9

 Based on this analysis, ERG set 

calibration factors that ranged from one to four orders of magnitude for 42 of the 297 immediate 

receiving waters and 1,237 of the 24,439 COMIDs included in the downstream modeling 

analysis. ERG adjusted 7 of the 42 immediate receiving waters and 22 of 1,237 COMIDs based 

on site-specific data available for comparison. The remaining calibration factors were adjusted 

based on the 10 mg/kg cap established for all modeled mercury fish tissue concentrations. Table 

4 summarizes the number of COMIDs for each order of magnitude calibration factor. 

Attachment 5 presents the calibration factors assigned to the immediate and downstream waters 

by COMID. 

EPA used the calibrated mercury fish tissue concentrations in the human health effects 

analyses presented in the Benefits and Cost Analysis. 

Table 4. Number of COMIDs by Calibration Factor 

Calibration Factor 

Number of COMIDs from Immediate 

Receiving Water Model 

(Percent of Total COMIDs in Model) 

Number of COMIDs from Downstream 

Receiving Water Model 

(Percent of Total COMIDs in Model) 

10,000 0 (0%) 6 (<1%) 

1,000 2 (1%) 121 (<1%) 

100 12 (4%) 174 (1%) 

10 28 (9%) 936 (4%) 

Total COMIDs Adjusted 42 (14%) 1,237 (5%) 

Source: U.S. EPA, 2012. 

4. IMPACT OF ADJUSTED MERCURY FISH TISSUE CONCENTRATIONS ON EA RESULTS

 The wildlife and human health analyses presented in Sections 5 and 6 of the EA Report 

are threshold-based analyses that compare modeled values (e.g., fish tissue concentrations and 

daily pollutant dose from fish consumption) to established benchmarks. The purpose of these 

analyses is to assess if mercury concentrations in fish in the immediate or downstream waters are 

likely to pose a threat to wildlife or humans. The EA Report does not assess the magnitude of the 

threat or magnitude of the benchmark exceedance, but simply determines if an exceedance 

occurs. As demonstrated below, in the great majority of cases the modeled fish tissue 

 

9

 All site-specific measured fish tissue concentrations were two orders of magnitude less than 29 mg/kg with the 

exception of Mayo Reservoir, which had a maximum measured mercury fish tissue concentration of 1.3 mg/kg. 
Memorandum 

April 19, 2013 

Page 9 

concentrations and average daily dose values from fish consumption will continue to exceed the 

benchmark values even if the calibration factors were taken into consideration. Although many 

of the unadjusted fish tissue concentration values were unrealistically high, it is likely that fish in 

these locations will exceed benchmark values for the protection of wildlife and human health. In 

an effort to avoid underestimating the extent of receiving waters with fish that may pose a risk to 

wildlife and human health, ERG used the unadjusted values in the EA Report in calculating 

benchmark exceedances. As a sensitivity analysis, ERG determined the difference in benchmark 

exceedances if the adjusted values were used in the EA. Tables 5 and 6 present the number of 

COMIDs that exceed the wildlife and human health benchmark values using the unadjusted and 

adjusted model values. ERG determined that mercury fish tissue concentrations adjusted by the 

calibration factors presented in Attachment 5 would reduce the number of COMIDs exceeding 

the No Effect Hazard Concentration (NEHC) benchmarks by a maximum of 16 percent (15 

COMIDs) in the immediate receiving waters and 7 percent (444 COMIDs) in the downstream 

waters. ERG determined that average daily dose (ADD) values adjusted by the calibration 

factors presented in Attachment 5 would reduce the number of COMIDs exceeding the mercury 

reference dose (Rfd) value for non-cancer health effects by a maximum of 11 percent (11 

COMIDs) in the immediate receiving waters and 5 percent (341 COMIDs) in the downstream 

waters. 

Table 5. Number of COMIDs Exceeding Wildlife Benchmarks

Model 

Unadjusted Mercury Fish Tissue 

Concentrations 

Adjusted Mercury Fish Tissue 

Concentrations 

Number of 

COMIDs 

Exceeding Mink 

NEHC 

Number of 

COMIDs 

Exceeding Eagle 

NEHC 

Number of 

COMIDs 

Exceeding Mink 

NEHC 

(Percent Change 

from Unadjusted 

Exceedances) 

Number of 

COMIDs 

Exceeding Eagle 

NEHC 

(Percent Change 

from Unadjusted 

Exceedances) 

Immediate 

Receiving Water 

Model Results 

96 127 81 (16%) 127 (0%) 

Downstream 

Receiving Water 

Model Results 

6,002 9,449 5,558 (7%) 9,436 (<1%) 

Source: U.S. EPA, 2012. 
Memorandum 

April 19, 2013 

Page 10 

Table 6. Number of COMIDs with Average Daily Dose Values that Exceed Mercury 

Reference Dose Values 

Model Cohort 

Number of COMIDs with 

Unadjusted ADDs that 

Exceed Mercury Rfd 

Number of COMIDs with 

Adjusted ADDs that 

Exceed Mercury Rfd 

(Percent Change from 

Unadjusted Exceedances) 

Immediate 

Receiving Water 

Model Results

Child 1 to <2 yrs 119 119 (0%) 

Child 2 to <3 yrs 119 119 (0%) 

Child 3 to <6 yrs 115 113 (2%) 

Child 6 to <11 yrs 111 109 (2%) 

Child 11 to <16 yrs 99 88 (11%) 

Child 16 to <21 yrs 99 88 (11%) 

Adult 124 124 (0%) 

Child 1 to <2 yrs (subsistence) 189 189 (0%) 

Child 2 to <3 yrs (subsistence) 189 189 (0%) 

Child 3 to <6 yrs (subsistence) 193 193 (0%) 

Child 6 to <11 yrs (subsistence) 185 185 (0%) 

Child 11 to <16 yrs (subsistence) 164 164 (0%) 

Child 16 to <21 yrs (subsistence) 164 164 (0%) 

Adult (subsistence) 185 185 (0%) 

Downstream 

Receiving Water 

Model Results

Child 1 to <2 yrs 8,466 8,451 (<1%) 

Child 2 to <3 yrs 8,448 8,433 (<1%) 

Child 3 to <6 yrs 8,013 7,997 (<1%) 

Child 6 to <11 yrs 7,595 7,579 (<1%) 

Child 11 to <16 yrs 6,348 6,007 (5%) 

Child 16 to <21 yrs 6,357 6,018 (5%) 

Adult 9,115 9,101 (<1%) 

Child 1 to <2 yrs (subsistence) 14,257 14,257 (0%) 

Child 2 to <3 yrs (subsistence) 14,257 14,257 (0%) 

Child 3 to <6 yrs (subsistence) 14,742 14,742 (0%) 

Child 6 to <11 yrs (subsistence) 13,963 13,963 (0%) 

Child 11 to <16 yrs (subsistence) 12,804 12,799 (<1%) 

Child 16 to <21 yrs (subsistence) 12,800 12,795 (<1%) 

Adult (subsistence) 13,961 13,961 (0%) 

Source: U.S. EPA, 2012. 

5. REFERENCES

Baumann, P.C. and R.B. Gillespie, 1986. Selenium Bioaccumulation in Gonads of Largemouth 

Bass and Bluegill from Three Power Plant Cooling Reservoirs. Environmental Toxicology and 

Chemistry, 5: 695–701. DCN SE01846. 

Charlotte Observer, 2010. Coal Ash in Water Worries Officials. (October). DCN SE01879. 

Crutchfield, J.U., Jr. 2000. Recovery of a Power Plant Cooling Reservoir from Selenium 

Bioaccumulation. Environmental Science & Policy, 3: 145–163. DCN 06037. 

Cumbie, P.M. and S.L. Van Horn. 1978. Selenium Accumulation Associated with Fish Mortality 

and Reproductive Failure. Proceedings of Annual Conference of the Southeastern Association of 

Fish and Wildlife, 32: 612–624. DCN SE01851. 
Memorandum 

April 19, 2013 

Page 11 

ERG. 2013a. Water Quality Model Supporting Documentation Memorandum. Chantilly, VA. 

DCN SE03888. 

ERG. 2013b. Downstream Model Supporting Documentation Memorandum. Chantilly, VA. 

DCN SE03891. 

Garrett, G.P. and C.R.Inman. 1984. Selenium-Induced Changes in Fish Populations in a Heated 

Reservoir. Proc. Ann. Conf. Southeast Assoc. Fish. Wildl. Agencies, 38: 291–301. DCN 

SE01885. 

Illinois EPA. 2012. Fish Tissue Sample Data for Newton Lake, IL. DCN SE01986A3. 

Reash, R. J., J.H. Van Hansel, and K.V. Wood. 1988. Ecology of a Southern Ohio stream 

receiving fly ash pond discharge: changes from acid mine drainage conditions. Archives of 

Environmental Contamination and Toxicology, 17:543–554. DCN SE02003. 

Reash, R. J., T.W. Lohner, K.V. Wood, and V.E. Willet. 1999. Ecotoxicological Assessment of 

Bluegill Sunfish Inhabiting a Selenium-enriched Fly Ash Stream. in: D. S., Henshel, M. C. 

Black, and M. C. Harras, (eds), Environmental Toxicology and Risk Assessment: Eighth 

Volume, ASTM STP 1364, American Society for Testing and Materials, West Conshohocken, 

Pennsylvania. DCN SE02004. 

U.S. EPA. 2012. Fish Tissue Validation and Calibration Sensitivity Analysis Database. 

Washington, DC. DCN SE01986A2. 

U.S. EPA. 2013. Fish Tissue Validation and Calibration Documentation Database. DCN 

SE01986A1. 

WHO. 1976. World Health Organization. Environmental Health Criteria 1: Mercury. 

International Programme on Chemical Safety. Geneva, Switzerland. DCN SE01914. 
Attachment 1 

April 19, 2013 Page 1-1 Attachment 1: Site-specific Modeled Receiving Water Concentration Values Compared to Measured ReceConcentration 

Plant Name COMID Receiving Water Name Pollutant 

Baseline 

Immediate 

Receiving 

Water Model 

Concentration 

(mg/L) 

Baseline 

Downstream 

Receiving Water 

Model 

Concentration 

(mg/L) 

Measured 

Surface Wat

Concentratio

(mg/L) 

Roxboro Steam Plant 8696233 Hyco Reservoir Total Selenium 0.00235 0.00258 0.009 - 0.01Roxboro Steam Plant 8696233 Hyco Reservoir Total Selenium 0.00235 0.00258 0.0032 Riverbend Steam Station 9755532 Mountain Island Lake Total Arsenic 0.0000329 0.000111 0.01 - 0.05 Riverbend Steam Station 9755532 Mountain Island Lake Total Zinc 0.0000441 0.000281 0.05 - 0.086 

a- County staff detected total arsenic above state standards. Ranges presented reflect state standards for freshwater and saltwater aqu

and human health. 

b- County staff detected zinc at nearly four times state standards. Ranges presented reflect state standards for freshwater and saltwat
Attachment 2 

April 19, 2013 

Page 2-1 

Attachment 2: COMIDs that Exceed Measured Surface Water Concentrations Reported in 

the Literature 

Table 2-1. COMIDs that Exceed Measured Total Arsenic Surface Water Concentrations 

Reported in the Literature

COMID Immediate Receiving Water Model 

Total Arsenic Concentration (mg/L) 

Downstream Receiving Water 

Model Total Arsenic Concentration 

(mg/L) 

[Confidential Business 

Information (CBI) has been 

removed from this document] 

2.221 0.351 

2.119 1.224 

1.387 0.425 

0.483 0.369 

0.416 0.294 

0.361 0.247 

0.334 0.222 

0.125 0.103 

0.122 0.117 

0.047 0.048 

0.045 0.044 

0.039 0.025 

0.022 0.028 

0.022 0.102 

0.017 0.316 

0.017 0.015 

0.016 0.012 

0.010 - 

0.011 - 

 0.015 

 0.183 

 0.179 

 0.156 

 0.015 

 0.149 

 0.127 

 0.125 

 0.093 

 0.096 

 0.018 

 0.093 

 0.091 

 1.032 

 1.097 

 0.119 

 0.364 

 0.311 

 0.093 

 0.122 

 0.033 

 0.018 

 0.033 

 0.091 

 0.091 
Attachment 2 

April 19, 2013 

Page 2-2 

Table 2-1. COMIDs that Exceed Measured Total Arsenic Surface Water Concentrations 

Reported in the Literature

COMID Immediate Receiving Water Model 

Total Arsenic Concentration (mg/L) 

Downstream Receiving Water 

Model Total Arsenic Concentration 

(mg/L) 

[CBI has been removed from 

this document] 

 0.014 

 0.040 

 0.502 

 0.369 

 0.018 

 0.053 

 0.022 

 0.011 

 0.015 

 0.010 

 0.014 

 0.040 

 0.111 

 0.019 

 0.012 

 0.012 

 0.010 

 0.012 

 0.012 

 0.209 

 0.130 

 0.245 

 0.143 

 0.021 

 0.112 

 0.044 

 0.044 

 0.025 

 0.215 

 0.222 

 0.222 

 0.201 

 0.229 

 0.160 

 0.021 

 0.126 

 0.024 

 0.194 

 0.129 

 0.080 

 0.031 

 0.024 

 0.010 

 0.143 

 0.020 

 0.034 

 0.020 
Attachment 2 

April 19, 2013 

Page 2-3 

Table 2-1. COMIDs that Exceed Measured Total Arsenic Surface Water Concentrations 

Reported in the Literature

COMID Immediate Receiving Water Model 

Total Arsenic Concentration (mg/L) 

Downstream Receiving Water 

Model Total Arsenic Concentration 

(mg/L) 

[CBI has been removed from 

this document] 

 0.012 

 0.027 

 0.027 

 0.022 

 0.027 

 0.022 

 0.022 

 0.021 

 0.012 

 0.072 

Source: U.S. EPA, 2012. 

Table 2-2. COMIDs that Exceed Measured Total Selenium Surface Water Concentrations 

Reported in the Literature

COMID 

Immediate Receiving Water Model 

Total Selenium 

Concentration (mg/L) 

Downstream Receiving Water 

Model Total Selenium 

Concentration (mg/L) 

[CBI has been removed from 

this document] 

3.566 0.564 

1.161 1.273 

1.018 0.904 

1.005 0.580 

0.988 - 

0.658 0.202 

0.348 0.246 

0.336 0.337 

0.282 0.188 

0.255 0.174 

0.231 0.177 

0.198 0.916 

0.193 1.664 

0.123 0.102 

0.108 0.104 

0.100 0.075 

0.092 - 

0.088 0.073 

0.063 0.040 

0.051 0.108 

0.047 0.042 

0.047 0.043 

0.041 0.045 

0.034 0.033 

0.027 0.024 

0.018 0.044 

0.015 0.015 

0.014 - 
Attachment 2 

April 19, 2013 

Page 2-4 

Table 2-2. COMIDs that Exceed Measured Total Selenium Surface Water Concentrations 

Reported in the Literature

COMID 

Immediate Receiving Water Model 

Total Selenium 

Concentration (mg/L) 

Downstream Receiving Water 

Model Total Selenium 

Concentration (mg/L) 

[CBI has been removed from 

this document] 

 0.044 

 0.088 

 0.034 

 0.047 

 0.033 

 0.018 

 0.048 

 0.046 

 0.054 

 0.070 

 0.071 

 0.080 

 0.106 

 0.033 

 0.017 

 0.022 

 0.016 

 0.021 

 0.078 

 0.034 

 0.022 

 0.056 

 0.091 

 0.102 

 0.014 

 0.014 

 0.026 

 0.028 

 0.032 

 0.034 

 0.038 

 0.041 

 0.026 

 0.023 

 0.031 

 0.034 

 0.023 

 0.023 

 0.023 

 0.024 

 0.024 

 0.024 

 0.019 

 0.027 

 0.028 

 0.031 

 0.028 
Attachment 2 

April 19, 2013 

Page 2-5 

Table 2-2. COMIDs that Exceed Measured Total Selenium Surface Water Concentrations 

Reported in the Literature

COMID 

Immediate Receiving Water Model 

Total Selenium 

Concentration (mg/L) 

Downstream Receiving Water 

Model Total Selenium 

Concentration (mg/L) 

[CBI has been removed from 

this document] 

 0.031 

 0.046 

 0.286 

 0.023 

 0.025 

 0.018 

 0.033 

 0.031 

 0.035 

 0.036 

 0.037 

 0.015 

 0.038 

 0.177 

 0.075 

 0.285 

 0.016 

 0.064 

 1.520 

 2.543 

 0.471 

 0.071 

 0.026 

 0.014 

 0.249 

 0.026 

 0.096 

 0.074 

 0.245 

 0.174 

 0.057 

 0.019 

 0.020 

 0.173 

 0.017 

 0.138 

 0.042 

 0.138 

 0.162 

 0.820 

 0.520 

 0.489 

 0.044 

 0.025 

 0.046 

 0.016 

 0.059 
Attachment 2 

April 19, 2013 

Page 2-6 

Table 2-2. COMIDs that Exceed Measured Total Selenium Surface Water Concentrations 

Reported in the Literature

COMID 

Immediate Receiving Water Model 

Total Selenium 

Concentration (mg/L) 

Downstream Receiving Water 

Model Total Selenium 

Concentration (mg/L) 

[CBI has been removed from 

this document] 

 0.060 

 0.071 

 0.074 

 0.085 

 0.087 

 0.238 

 0.203 

 0.015 

 0.015 

 0.023 

 0.023 

 0.044 

 1.600 

 1.034 

 1.040 

 1.057 

 1.070 

 1.069 

 1.073 

 1.076 

 1.100 

 1.105 

 1.117 

 1.132 

 1.133 

 1.252 

 1.236 

 0.335 

 1.133 

 1.133 

 1.160 

 1.148 

 1.164 

 1.182 

 1.221 

 1.224 

 1.226 

 1.570 

 1.244 

 0.036 

 1.138 

 0.015 

 0.015 

 0.015 

 0.015 

 0.015 

 0.016 
Attachment 2 

April 19, 2013 

Page 2-7 

Table 2-2. COMIDs that Exceed Measured Total Selenium Surface Water Concentrations 

Reported in the Literature

COMID 

Immediate Receiving Water Model 

Total Selenium 

Concentration (mg/L) 

Downstream Receiving Water 

Model Total Selenium 

Concentration (mg/L) 

[CBI has been removed from 

this document] 

 0.036 

 0.162 

 0.192 

 0.168 

 0.188 

 0.188 

 0.182 

 0.999 

 0.040 

 0.996 

 0.033 

 0.033 

 0.098 

 0.098 

 0.033 

 0.043 

 0.044 

 0.101 

 0.113 

 0.092 

 0.996 

 1.069 

 1.307 

 0.024 

 0.015 

 0.542 

 0.315 

 0.311 

 0.311 

 0.311 

 0.311 

 0.245 

 0.311 

 0.245 

 0.015 

 0.014 

 0.014 

 1.340 

 0.015 

 0.305 

 0.015 

 0.015 

 0.015 

 0.015 

 0.015 

 0.042 

 0.014 
Attachment 2 

April 19, 2013 

Page 2-8 

Table 2-2. COMIDs that Exceed Measured Total Selenium Surface Water Concentrations 

Reported in the Literature

COMID 

Immediate Receiving Water Model 

Total Selenium 

Concentration (mg/L) 

Downstream Receiving Water 

Model Total Selenium 

Concentration (mg/L) 

[CBI has been removed from 

this document] 

 0.036 

 0.100 

 0.015 

 0.024 

 0.051 

 0.015 

 0.017 

 1.299 

 1.648 

 0.893 

 0.893 

 0.895 

 0.636 

 0.666 

 0.893 

 0.022 

 0.798 

 0.636 

 1.273 

 0.308 

 0.017 

 0.303 

 0.018 

 0.025 

 0.026 

 0.551 

 0.027 

 0.256 

 0.303 

 0.258 

 0.543 

 0.256 

 0.315 

 0.257 

 0.101 

 0.613 

Source: U.S. EPA, 2012. 
Attachment 3 

April 19, 2013 Page 3-1 Attachment 3: Summary of Lake-specific Fish Tissue Sampling Data Available for Comparison with Mod

Table 3-1. Summary of Lake-specific Arsenic Fish Tissue Concentration Data 

COMID Lake Name Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples Average Fish Tissue Concentration (mg/kg) Minimum Fish Tissue Concentration (mg/kg) M

C

8696233 Hyco Lake T3 1/1/1986 1/1/1988 54 0.207 0.200 6445736 Lake Blackshear T3 10/26/1992 12/21/2001 12 0.020 0.020 6445736 Lake Blackshear T4 10/26/1992 11/27/2001 12 0.022 0.020 6336412 Lake Juliette T3 11/23/1999 11/23/1999 1 8.000 8.000 6336412 Lake Juliette T4 9/16/1992 10/18/1999 4 6.005 0.020 9755486 Lake Norman T3 1/1/1997 1/1/1997 3 1.000 1.000 9755486 Lake Norman T4 1/1/1997 1/1/1997 9 1.000 1.000 1943791 Lake Sinclair T3 10/26/1991 11/16/2001 22 0.033 0.020 1943791 Lake Sinclair T4 10/26/1991 11/16/2001 22 0.038 0.020 8693517 Mayo Reservoir T3 1/1/1986 1/1/1988 15 0.293 0.200 8693517 Mayo Reservoir T4 1/1/1986 1/1/1988 8 0.325 0.200 9755532 Mountain Island Lake T3 1/1/1997 1/1/1997 3 1.000 1.000 9755532 Mountain Island Lake T4 1/1/1997 1/1/1997 5 1.000 1.000 

Source: U.S. EPA, 2013. NLFA- National Listing of Fish Advisories database. 

Table 3-2. Summary of Lake-specific Lead Fish Tissue Concentration Data 

COMID Lake Name Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples Average Fish Tissue Concentration (mg/kg) Minimum Fish Tissue Concentration (mg/kg) 

8696233 Hyco Lake T3 1/1/1986 1/1/1986 27 0.644 0.500 6445736 Lake Blackshear T3 10/26/1992 12/21/2001 12 0.875 0.500 6445736 Lake Blackshear T4 10/26/1992 11/27/2001 12 0.875 0.500 6336412 Lake Juliette T3 11/23/1999 11/23/1999 1 9.000 9.000 6336412 Lake Juliette T4 9/16/1992 10/18/1999 4 7.000 1.000 
Attachment 3 

April 19, 2013 Page 3-2 

Table 3-2. Summary of Lake-specific Lead Fish Tissue Concentration Data 

COMID Lake Name Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples Average Fish Tissue Concentration (mg/kg) Minimum Fish Tissue Concentration (mg/kg) 

9755486 Lake Norman T3 1/1/1997 1/1/1997 3 0.500 0.500 9755486 Lake Norman T4 1/1/1997 1/1/1997 9 0.500 0.500 1943791 Lake Sinclair T3 10/26/1991 11/16/2001 22 1.043 0.500 1943791 Lake Sinclair T4 10/26/1991 11/16/2001 22 2.525 0.320 8693517 Mayo Reservoir T3 1/1/1986 1/1/1986 6 0.500 0.500 8693517 Mayo Reservoir T4 1/1/1986 1/1/1986 3 0.567 0.500 9755532 Mountain Island Lake T3 1/1/1997 1/1/1997 3 0.500 0.500 9755532 Mountain Island Lake T4 1/1/1997 1/1/1997 5 0.500 0.500 

Source: U.S. EPA, 2013. NLFA- National Listing of Fish Advisories database.

Table 3-3. Summary of Lake-specific Mercury Fish Tissue Concentration Data 

COMID Lake Name Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples Average Fish Tissue Concentration (mg/kg) Minimum Fish Tissue Concentration (mg/kg) 

C

13881754 Coffeen Lake T4 10/22/1990 10/21/1991 2 0.085 0.080 

1827174 Herrington Lake T3 2001 2001 2 0.164 0.164 1827174 Herrington Lake T4 2001 2001 5 0.146 0.146 8696233 Hyco Lake T3 1/1/1986 1/1/1988 54 0.020 0.020 2996516 La Cygnes Lake T3 11/7/1991 10/4/1993 3 0.023 0.020 6445736 Lake Blackshear T3 10/26/1992 12/21/2001 12 0.100 0.010 6445736 Lake Blackshear T4 10/26/1992 11/27/2001 12 0.188 0.010 6336412 Lake Juliette T3 11/23/1999 11/23/1999 1 0.100 0.100 6336412 Lake Juliette T4 9/16/1992 10/18/1999 4 0.155 0.090 9017879 Lake Macatawa T3 7/16/1987 5/5/1995 20 0.130 0.050 9017879 Lake Macatawa T4 7/16/1987 5/5/1995 22 0.169 0.080 9755486 Lake Norman T3 1/1/1997 1/1/1997 3 0.033 0.030 
Attachment 3 

April 19, 2013 Page 3-3 

Table 3-3. Summary of Lake-specific Mercury Fish Tissue Concentration Data 

COMID Lake Name Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples Average Fish Tissue Concentration (mg/kg) Minimum Fish Tissue Concentration (mg/kg) 

C

9755486 Lake Norman T4 1/1/1997 1/1/1997 9 0.168 0.080 9755486 Lake Norman T3 2003 2003 8 0.0666 0.0374 9755486 Lake Norman T4 2003 2003 10 0.164 0.159 1943791 Lake Sinclair T3 10/26/1991 11/16/2001 31 0.090 0.010 1943791 Lake Sinclair T4 10/26/1991 11/16/2001 22 0.109 0.010 1943791 Lake Sinclair T3 2001 2001 5 0.039 0.039 1943791 Lake Sinclair T4 2001 2001 5 0.0988 0.0988 8693517 Mayo Reservoir T3 1/1/1986 1/1/1988 13 0.065 0.020 8693517 Mayo Reservoir T4 1/1/1986 1/1/1988 8 0.339 0.080 9755532 Mountain Island Lake T3 1/1/1997 1/1/1997 5 0.064 0.020 9755532 Mountain Island Lake T4 1/1/1997 1/1/1997 10 0.093 0.060 9755532 Mountain Island Lake T4 2001 2001 5 0.105 0.105 

12135490 Muskegon Lake T3 8/19/1993 8/19/1993 5 0.200 0.160 12135490 Muskegon Lake T4 7/7/1987 8/19/1993 31 0.426 0.100 10433546 Newton Lake T4 5/5/2003 5/5/2003 2 0.195 0.12 10286056 Turtle Creek Reservoir T3 2001 2001 5 0.0615 0.0615 10286056 Turtle Creek Reservoir T4 2001 2001 2 0.0831 0.0831 13565470 Sangchris Lake T4 10/11/1990 10/25/1991 2 0.180 0.100 21979923 Seneca Lake T4 7/23/2002 8/1/2002 29 0.389 0.140 21979923 Seneca Lake T3 2003 2003 5 0.0411 0.0411 21979923 Seneca Lake T4 2003 2003 5 0.743 0.743 20972936 Sooner Reservoir T4 11/30/1995 11/30/1995 1 0.240 0.240 

397492 SWEPCO Lake T4 4/6/1993 4/6/1993 1 0.100 0.100 

1009152 Welsh Reservoir T3 2/25/1998 2/25/1998 8 0.065 0.050 1009152 Welsh Reservoir T4 2/24/1998 2/25/1998 12 0.181 0.080 

Source: U.S. EPA, 2013; Illinois EPA, 2012. NLFA- National Listing of Fish Advisories database. NLFS- National Lake Fish Study database. IL EPA- Data obtained from the Surface Water Quality Monitoring and Assessment Program at the Illinois EPA.
Attachment 4 

April 19, 2013 Page 4-1 Attachment 4: Site-Specific Fish Tissue Sampling Data in Rivers 

Table 4-1. Summary of River-specific Arsenic Fish Tissue Concentration Sampling Dat

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

465516 T3 4/19/1999 6/2/1999 7 0.177 0.16465516 T4 4/19/1999 4/19/1999 5 0.176 0.16

1825520 T3 9/2/1999 9/2/1999 2 0.220 0.201825520 T4 9/2/1999 9/2/1999 1 0.220 0.221825588 T3 8/30/1999 8/30/1999 1 0.210 0.211825588 T4 8/30/1999 8/30/1999 1 0.230 0.231827692 T3 8/31/1999 8/31/1999 3 0.210 0.181827692 T4 8/31/1999 8/31/1999 1 0.210 0.211827814 T3 9/1/1999 9/1/1999 3 0.210 0.201827814 T4 9/1/1999 9/1/1999 1 0.210 0.211920666 T4 3/26/1998 3/26/1998 4 0.356 0.261949119 T3 10/9/1996 7/18/2001 6 0.020 0.021949119 T4 7/18/2001 7/18/2001 3 0.020 0.023286354 T3 7/2/1996 3/10/1999 13 5.308 3.003286386 T3 9/10/1997 9/10/1997 3 0.040 0.043286386 T4 9/10/1997 9/10/1997 4 0.040 0.043286570 T3 12/9/1994 12/9/1994 3 0.047 0.043286570 T4 12/9/1994 12/9/1994 3 0.040 0.043298568 T3 11/3/1999 11/3/1999 6 8.000 8.003298568 T4 10/25/1999 11/3/1999 6 8.000 8.003298592 T3 9/18/1997 9/18/1997 3 0.040 0.043298592 T4 9/16/1997 9/16/1997 3 0.040 0.043298764 T3 11/4/1991 11/30/1999 11 2.773 0.053298764 T4 11/4/1991 9/20/1999 7 2.343 0.043298798 T3 11/9/1992 11/16/1999 9 2.680 0.023298798 T4 11/9/1992 11/16/1999 11 3.647 0.023369890 T4 8/25/1997 8/25/1997 1 0.100 0.103434376 T3 11/20/1991 11/20/1991 5 0.040 0.04
Attachment 4 

April 19, 2013 Page 4-2 

Table 4-1. Summary of River-specific Arsenic Fish Tissue Concentration Sampling Dat

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

3434376 T4 11/20/1991 11/20/1991 5 0.040 0.043434426 T3 11/10/1993 11/3/1999 8 0.040 0.043434426 T4 11/3/1999 11/3/1999 3 0.040 0.043443442 T3 10/27/1998 10/27/1998 3 8.000 8.003443442 T4 10/27/1998 10/27/1998 3 0.040 0.043443586 T3 11/7/1991 10/28/1993 9 0.040 0.043443586 T4 11/7/1991 11/7/1991 3 0.040 0.043483173 T3 8/9/1999 8/9/1999 4 0.178 0.163486833 T3 8/9/1999 8/9/1999 4 0.171 0.163486833 T4 8/9/1999 8/9/1999 1 0.164 0.163486865 T3 8/10/1999 8/10/1999 4 0.173 0.163486865 T4 8/10/1999 8/10/1999 3 0.175 0.163486895 T3 10/20/1998 10/30/2000 11 0.076 0.033486895 T4 10/20/1998 10/30/2000 4 0.123 0.033486931 T3 10/21/1998 10/18/2000 15 0.109 0.033486931 T4 10/18/2000 10/18/2000 1 0.039 0.033488041 T3 8/11/1999 8/11/1999 4 0.168 0.153488041 T4 8/11/1999 8/11/1999 1 0.169 0.163489643 T3 8/11/1999 8/11/1999 5 0.177 0.163489669 T3 8/11/1999 8/11/1999 4 0.189 0.163821351 T4 1/1/1998 1/1/1998 1 0.192 0.193883918 T3 10/22/1998 10/26/1998 4 0.182 0.173883918 T4 10/26/1998 10/26/1998 1 0.175 0.173884972 T3 10/20/1998 10/20/1998 5 0.182 0.173884972 T4 10/20/1998 10/20/1998 1 0.178 0.173885234 T3 10/22/1998 10/22/1998 9 0.172 0.153885234 T4 10/22/1998 10/22/1998 2 0.161 0.153885820 T3 10/20/1998 12/4/1998 11 0.176 0.153885820 T4 10/20/1998 10/20/1998 3 0.178 0.173885838 T3 10/20/1998 10/20/1998 4 0.184 0.173885878 T3 10/20/1998 10/22/1998 4 0.181 0.17
Attachment 4 

April 19, 2013 Page 4-3 

Table 4-1. Summary of River-specific Arsenic Fish Tissue Concentration Sampling Dat

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

3885882 T3 10/26/1998 10/26/1998 6 0.182 0.163885882 T4 10/26/1998 10/26/1998 1 0.192 0.193885946 T3 10/27/1998 10/27/1998 3 0.182 0.173885950 T3 10/26/1998 10/27/1998 9 0.176 0.163886008 T3 10/21/1998 10/21/1998 7 0.175 0.163886022 T3 10/21/1998 10/21/1998 5 0.171 0.163886042 T3 10/19/1998 10/19/1998 6 0.230 0.163886042 T4 10/19/1998 10/19/1998 2 0.177 0.173886048 T3 10/19/1998 10/19/1998 6 0.248 0.173886048 T4 10/19/1998 10/19/1998 1 0.167 0.165218267 T3 8/3/1991 8/3/1999 4 0.183 0.175218267 T4 8/3/1999 8/3/1999 2 0.175 0.166341430 T3 8/23/2001 8/23/2001 1 0.020 0.026341430 T4 8/23/2001 8/23/2001 2 0.026 0.026341626 T3 9/14/1999 9/14/1999 4 8.000 8.006341626 T4 9/14/1999 9/14/1999 3 8.000 8.006361840 T3 9/23/1992 9/23/1992 6 0.020 0.026365340 T3 9/15/1997 10/4/2001 9 0.693 0.046365340 T4 9/15/1997 9/11/1998 6 0.040 0.046365450 T3 10/23/1996 10/23/1996 3 0.020 0.026365450 T4 11/6/1996 11/5/2001 6 1.010 0.026369124 T3 10/9/1996 10/4/2001 6 1.010 0.026369124 T4 10/31/1996 11/5/2001 6 1.010 0.026498944 T3 12/11/1991 12/11/1991 5 0.040 0.046499272 T3 11/28/1995 11/28/1995 3 0.020 0.026500402 T3 12/20/1999 12/20/1999 3 0.040 0.046500402 T4 12/20/1999 12/20/1999 3 0.040 0.046668523 T3 6/6/2000 6/6/2000 3 0.075 0.06

11617363 T3 9/27/1999 9/27/1999 2 0.215 0.2111617363 T4 9/27/1999 9/27/1999 4 0.198 0.1814348510 T3 10/3/1995 9/21/1999 6 4.010 0.01
Attachment 4 

April 19, 2013 Page 4-4 

Table 4-1. Summary of River-specific Arsenic Fish Tissue Concentration Sampling Dat

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

14348510 T4 7/20/2000 7/20/2000 3 8.000 8.0015434032 T3 10/10/2001 10/10/2001 12 0.041 0.0315434032 T4 10/10/2001 10/10/2001 2 0.037 0.0315823185 T4 6/2/1997 6/2/1997 3 2.000 2.0015823217 T3 10/25/2000 10/26/2000 7 0.022 0.0215823217 T4 10/29/2000 10/29/2000 3 0.020 0.0215823319 T3 10/20/1993 10/20/1993 3 0.040 0.0415823319 T4 12/6/1993 5/22/1997 6 1.020 0.0418215698 T3 12/2/1997 12/2/1997 1 1.000 1.0018215698 T4 12/2/1997 12/2/1997 1 1.000 1.0018519881 T3 10/16/1997 10/16/1997 1 1.000 1.0018519881 T4 10/16/1997 10/16/1997 1 1.000 1.0018519935 T3 11/6/2006 11/6/2006 1 0.100 0.1018519935 T4 11/6/2006 11/6/2006 1 0.100 0.1018522283 T3 11/7/2006 11/7/2006 1 0.100 0.1018522283 T4 11/7/2006 11/7/2006 1 0.100 0.1018524217 T4 11/21/2006 11/21/2006 1 0.100 0.1018546622 T3 10/11/2006 10/11/2006 1 0.100 0.1018546622 T4 10/11/2006 10/11/2006 1 0.100 0.1018548394 T3 10/11/2006 10/11/2006 1 0.100 0.1018548394 T4 10/11/2006 10/11/2006 1 0.100 0.1018548516 T3 10/12/2006 10/12/2006 1 0.100 0.1018548516 T4 10/12/2006 10/12/2006 1 0.100 0.1019440411 T4 7/17/1997 7/17/1997 1 0.120 0.1221642184 T3 11/1/2006 11/1/2006 1 0.100 0.1021642184 T4 11/1/2006 11/1/2006 1 0.100 0.1021642344 T3 11/1/2006 11/1/2006 1 0.100 0.1021642344 T4 11/1/2006 11/1/2006 1 0.100 0.10

902220012 T3 10/9/1993 11/23/1994 6 0.077 0.04902220012 T4 10/7/1993 11/23/1994 6 0.040 0.04902770057 T3 11/4/1993 10/11/1995 6 0.034 0.02
Attachment 4 

April 19, 2013 Page 4-5 

Table 4-1. Summary of River-specific Arsenic Fish Tissue Concentration Sampling Dat

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

902770057 T4 11/4/1993 12/10/1993 3 0.040 0.04

Source: U.S. EPA, 2013. 

Table 4-2. Summary of River-specific Lead Fish Tissue Concentration Sampling Data 

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

465516 T3 4/19/1999 6/2/1999 7 0.177 0.16465516 T4 4/19/1999 4/19/1999 5 0.176 0.16

1825520 T3 9/2/1999 9/2/1999 2 0.220 0.201825520 T4 9/2/1999 9/2/1999 1 0.220 0.221825588 T3 8/30/1999 8/30/1999 1 0.210 0.211825588 T4 8/30/1999 8/30/1999 1 0.230 0.231827692 T3 8/31/1999 8/31/1999 3 0.210 0.181827692 T4 8/31/1999 8/31/1999 1 0.210 0.211827814 T3 9/1/1999 9/1/1999 3 0.210 0.201827814 T4 9/1/1999 9/1/1999 1 0.210 0.211920666 T4 3/26/1998 3/26/1998 4 0.177 0.171949119 T3 10/9/1996 7/18/2001 6 1.628 0.751949119 T4 7/18/2001 7/18/2001 3 5.223 2.632275959 T3 9/30/1996 9/5/2000 7 0.098 0.083286354 T3 7/2/1996 3/10/1999 13 5.231 2.003286386 T3 9/10/1997 9/10/1997 3 1.000 1.003286386 T4 9/10/1997 9/10/1997 4 1.000 1.003286570 T3 12/9/1994 12/9/1994 3 1.000 1.003286570 T4 12/9/1994 12/9/1994 3 1.000 1.003298568 T3 11/3/1999 11/3/1999 6 9.000 9.00
Attachment 4 

April 19, 2013 Page 4-6 

Table 4-2. Summary of River-specific Lead Fish Tissue Concentration Sampling Data 

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

3298568 T4 10/25/1999 11/3/1999 6 9.000 9.003298592 T3 9/18/1997 9/18/1997 3 1.000 1.003298592 T4 9/16/1997 9/16/1997 3 1.000 1.003298764 T3 11/4/1991 11/30/1999 11 3.727 1.003298764 T4 11/4/1991 9/20/1999 7 3.286 1.003298798 T3 11/9/1992 11/16/1999 9 3.614 0.533298798 T4 11/9/1992 11/16/1999 11 4.636 1.003369890 T3 8/25/1997 8/25/1997 1 0.090 0.093369890 T4 8/25/1997 8/25/1997 2 0.090 0.093369896 T3 1/1/1998 9/1/2001 9 0.019 0.003369896 T4 1/1/1998 1/1/2000 4 0.016 0.003434376 T3 11/20/1991 11/20/1991 5 2.000 2.003434376 T4 11/20/1991 11/20/1991 5 2.000 2.003434426 T3 11/10/1993 11/3/1999 8 1.000 1.003434426 T4 11/3/1999 11/3/1999 3 1.000 1.003443442 T3 10/27/1998 10/27/1998 3 9.000 9.003443442 T4 10/27/1998 10/27/1998 3 1.000 1.003443586 T3 11/7/1991 10/28/1993 9 1.333 1.003443586 T4 11/7/1991 11/7/1991 3 2.000 2.003483173 T3 8/9/1999 8/9/1999 4 0.178 0.163486833 T3 7/22/1997 8/9/1999 7 0.136 0.093486833 T4 7/22/1997 8/9/1999 2 0.127 0.093486865 T3 8/10/1999 8/10/1999 4 0.173 0.163486865 T4 8/10/1999 8/10/1999 3 0.175 0.163486895 T3 10/20/1998 10/30/2000 11 0.164 0.033486895 T4 10/20/1998 10/30/2000 4 0.072 0.033486931 T3 10/21/1998 10/18/2000 15 0.813 0.033486931 T4 10/18/2000 10/18/2000 1 0.039 0.033488041 T3 8/11/1999 8/11/1999 4 0.168 0.153488041 T4 8/11/1999 8/11/1999 1 0.169 0.163489643 T3 8/11/1999 8/11/1999 5 0.177 0.16
Attachment 4 

April 19, 2013 Page 4-7 

Table 4-2. Summary of River-specific Lead Fish Tissue Concentration Sampling Data 

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

3489669 T3 8/11/1999 8/11/1999 4 0.176 0.163821273 T3 9/9/1996 9/9/1996 1 0.039 0.033883918 T3 10/22/1998 10/26/1998 4 0.182 0.173883918 T4 10/26/1998 10/26/1998 1 0.175 0.173884972 T3 10/20/1998 10/20/1998 5 0.249 0.173884972 T4 10/20/1998 10/20/1998 1 0.178 0.173885234 T3 10/22/1998 10/22/1998 9 0.173 0.153885234 T4 10/22/1998 10/22/1998 2 0.202 0.153885820 T3 10/20/1998 12/4/1998 11 0.260 0.153885820 T4 10/20/1998 10/20/1998 3 0.178 0.173885838 T3 10/20/1998 10/20/1998 4 0.184 0.173885878 T3 10/20/1998 10/22/1998 4 0.190 0.173885882 T3 10/26/1998 10/26/1998 6 0.182 0.163885882 T4 10/26/1998 10/26/1998 1 0.192 0.193885946 T3 10/27/1998 10/27/1998 3 0.182 0.173885950 T3 10/26/1998 10/27/1998 9 0.176 0.163886008 T3 10/21/1998 10/21/1998 7 0.175 0.163886022 T3 10/21/1998 10/21/1998 5 0.171 0.163886042 T3 10/19/1998 10/19/1998 6 0.172 0.163886042 T4 10/19/1998 10/19/1998 2 0.172 0.163886048 T3 10/19/1998 10/19/1998 6 0.176 0.153886048 T4 10/19/1998 10/19/1998 1 0.167 0.165218213 T3 7/21/1997 7/21/1997 3 0.093 0.095218267 T3 8/3/1991 8/3/1999 4 0.183 0.175218267 T4 8/3/1999 8/3/1999 2 0.175 0.166341430 T3 8/23/2001 8/23/2001 1 0.500 0.506341430 T4 8/23/2001 8/23/2001 2 0.500 0.506341626 T3 9/14/1999 9/14/1999 4 17.750 9.006341626 T4 9/14/1999 9/14/1999 3 10.667 9.006361840 T3 9/23/1992 9/23/1992 6 1.000 1.006365340 T3 9/15/1997 10/4/2001 9 1.000 1.00
Attachment 4 

April 19, 2013 Page 4-8 

Table 4-2. Summary of River-specific Lead Fish Tissue Concentration Sampling Data 

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

6365340 T4 9/15/1997 9/11/1998 6 1.283 1.006365450 T3 10/23/1996 10/23/1996 3 1.000 1.006365450 T4 11/6/1996 11/5/2001 6 1.000 1.006369124 T3 10/9/1996 10/4/2001 6 1.000 1.006369124 T4 10/31/1996 11/5/2001 6 1.000 1.006498944 T3 12/11/1991 12/11/1991 5 2.000 2.006499272 T3 11/28/1995 11/28/1995 3 1.000 1.006500402 T3 12/20/1999 12/20/1999 3 1.000 1.006500402 T4 12/20/1999 12/20/1999 3 1.000 1.006668523 T3 6/6/2000 6/6/2000 3 0.089 0.056920804 T4 10/4/1996 10/4/1996 1 0.500 0.506925367 T4 9/25/1997 9/25/1997 1 0.500 0.507626082 T4 1/1/2002 1/1/2002 2 0.000 0.009614577 T4 1/1/2002 1/1/2002 1 1.900 1.909721701 T4 1/1/1998 1/1/1998 1 1.800 1.80

11617363 T3 9/27/1999 9/27/1999 2 0.215 0.2111617363 T4 9/27/1999 9/27/1999 4 0.188 0.1812035635 T4 1/1/2002 1/1/2002 1 1.000 1.0014348510 T3 10/3/1995 9/21/1999 6 5.000 1.0014348510 T4 7/20/2000 7/20/2000 3 9.000 9.0015380191 T3 9/8/1997 9/8/1997 2 0.090 0.0915434032 T3 10/10/2001 10/10/2001 12 0.040 0.0315434032 T4 10/10/2001 10/10/2001 2 0.037 0.0315823185 T4 6/2/1997 6/2/1997 3 3.000 3.0015823217 T3 10/25/2000 10/26/2000 7 0.500 0.5015823217 T4 10/29/2000 10/29/2000 3 0.500 0.5015823319 T3 10/20/1993 10/20/1993 3 1.000 1.0015823319 T4 12/6/1993 5/22/1997 6 2.000 1.0019314268 T3 10/1/1996 10/1/1996 1 0.500 0.5019440411 T3 7/17/1997 7/17/1997 3 0.090 0.0919440411 T4 7/17/1997 7/17/1997 1 0.090 0.09
Attachment 4 

April 19, 2013 Page 4-9 

Table 4-2. Summary of River-specific Lead Fish Tissue Concentration Sampling Data 

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

19440417 T3 9/9/1996 9/9/1996 2 0.015 0.0019440431 T3 9/9/1996 9/1/2001 15 0.038 0.0019440431 T4 9/9/1996 9/1/2001 6 0.661 0.0019453185 T3 1/1/1998 1/1/1998 2 0.253 0.2219453185 T4 1/1/1998 1/1/1998 1 0.380 0.3824750511 T3 10/4/1996 8/2/2001 8 0.129 0.08

901990078 T4 1/1/1998 1/1/1998 1 1.600 1.60902220012 T3 10/9/1993 11/23/1994 6 1.000 1.00902220012 T4 10/7/1993 11/23/1994 6 1.000 1.00902770057 T3 11/4/1993 10/11/1995 6 1.083 1.00902770057 T4 11/4/1993 12/10/1993 3 1.000 1.00

465516 T3 4/19/1999 6/2/1999 7 0.177 0.16465516 T4 4/19/1999 4/19/1999 5 0.176 0.16

1825520 T3 9/2/1999 9/2/1999 2 0.220 0.201825520 T4 9/2/1999 9/2/1999 1 0.220 0.221825588 T3 8/30/1999 8/30/1999 1 0.210 0.211825588 T4 8/30/1999 8/30/1999 1 0.230 0.231827692 T3 8/31/1999 8/31/1999 3 0.210 0.181827692 T4 8/31/1999 8/31/1999 1 0.210 0.211827814 T3 9/1/1999 9/1/1999 3 0.210 0.201827814 T4 9/1/1999 9/1/1999 1 0.210 0.211920666 T4 3/26/1998 3/26/1998 4 0.177 0.171949119 T3 10/9/1996 7/18/2001 6 1.628 0.751949119 T4 7/18/2001 7/18/2001 3 5.223 2.632275959 T3 9/30/1996 9/5/2000 7 0.098 0.083286354 T3 7/2/1996 3/10/1999 13 5.231 2.003286386 T3 9/10/1997 9/10/1997 3 1.000 1.003286386 T4 9/10/1997 9/10/1997 4 1.000 1.003286570 T3 12/9/1994 12/9/1994 3 1.000 1.003286570 T4 12/9/1994 12/9/1994 3 1.000 1.003298568 T3 11/3/1999 11/3/1999 6 9.000 9.00
Attachment 4 

April 19, 2013 Page 4-10 

Table 4-2. Summary of River-specific Lead Fish Tissue Concentration Sampling Data 

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

3298568 T4 10/25/1999 11/3/1999 6 9.000 9.003298592 T3 9/18/1997 9/18/1997 3 1.000 1.003298592 T4 9/16/1997 9/16/1997 3 1.000 1.003298764 T3 11/4/1991 11/30/1999 11 3.727 1.003298764 T4 11/4/1991 9/20/1999 7 3.286 1.003298798 T3 11/9/1992 11/16/1999 9 3.614 0.533298798 T4 11/9/1992 11/16/1999 11 4.636 1.003369890 T3 8/25/1997 8/25/1997 1 0.090 0.093369890 T4 8/25/1997 8/25/1997 2 0.090 0.093369896 T3 1/1/1998 9/1/2001 9 0.019 0.003369896 T4 1/1/1998 1/1/2000 4 0.016 0.003434376 T3 11/20/1991 11/20/1991 5 2.000 2.003434376 T4 11/20/1991 11/20/1991 5 2.000 2.003434426 T3 11/10/1993 11/3/1999 8 1.000 1.003434426 T4 11/3/1999 11/3/1999 3 1.000 1.003443442 T3 10/27/1998 10/27/1998 3 9.000 9.003443442 T4 10/27/1998 10/27/1998 3 1.000 1.003443586 T3 11/7/1991 10/28/1993 9 1.333 1.003443586 T4 11/7/1991 11/7/1991 3 2.000 2.003483173 T3 8/9/1999 8/9/1999 4 0.178 0.163486833 T3 7/22/1997 8/9/1999 7 0.136 0.093486833 T4 7/22/1997 8/9/1999 2 0.127 0.093486865 T3 8/10/1999 8/10/1999 4 0.173 0.163486865 T4 8/10/1999 8/10/1999 3 0.175 0.163486895 T3 10/20/1998 10/30/2000 11 0.164 0.033486895 T4 10/20/1998 10/30/2000 4 0.072 0.033486931 T3 10/21/1998 10/18/2000 15 0.813 0.033486931 T4 10/18/2000 10/18/2000 1 0.039 0.033488041 T3 8/11/1999 8/11/1999 4 0.168 0.153488041 T4 8/11/1999 8/11/1999 1 0.169 0.163489643 T3 8/11/1999 8/11/1999 5 0.177 0.16
Attachment 4 

April 19, 2013 Page 4-11 

Table 4-2. Summary of River-specific Lead Fish Tissue Concentration Sampling Data 

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

3489669 T3 8/11/1999 8/11/1999 4 0.176 0.163821273 T3 9/9/1996 9/9/1996 1 0.039 0.033883918 T3 10/22/1998 10/26/1998 4 0.182 0.173883918 T4 10/26/1998 10/26/1998 1 0.175 0.173884972 T3 10/20/1998 10/20/1998 5 0.249 0.173884972 T4 10/20/1998 10/20/1998 1 0.178 0.173885234 T3 10/22/1998 10/22/1998 9 0.173 0.153885234 T4 10/22/1998 10/22/1998 2 0.202 0.153885820 T3 10/20/1998 12/4/1998 11 0.260 0.153885820 T4 10/20/1998 10/20/1998 3 0.178 0.173885838 T3 10/20/1998 10/20/1998 4 0.184 0.173885878 T3 10/20/1998 10/22/1998 4 0.190 0.173885882 T3 10/26/1998 10/26/1998 6 0.182 0.163885882 T4 10/26/1998 10/26/1998 1 0.192 0.193885946 T3 10/27/1998 10/27/1998 3 0.182 0.173885950 T3 10/26/1998 10/27/1998 9 0.176 0.163886008 T3 10/21/1998 10/21/1998 7 0.175 0.163886022 T3 10/21/1998 10/21/1998 5 0.171 0.163886042 T3 10/19/1998 10/19/1998 6 0.172 0.163886042 T4 10/19/1998 10/19/1998 2 0.172 0.163886048 T3 10/19/1998 10/19/1998 6 0.176 0.153886048 T4 10/19/1998 10/19/1998 1 0.167 0.165218213 T3 7/21/1997 7/21/1997 3 0.093 0.095218267 T3 8/3/1991 8/3/1999 4 0.183 0.175218267 T4 8/3/1999 8/3/1999 2 0.175 0.166341430 T3 8/23/2001 8/23/2001 1 0.500 0.506341430 T4 8/23/2001 8/23/2001 2 0.500 0.506341626 T3 9/14/1999 9/14/1999 4 17.750 9.006341626 T4 9/14/1999 9/14/1999 3 10.667 9.006361840 T3 9/23/1992 9/23/1992 6 1.000 1.006365340 T3 9/15/1997 10/4/2001 9 1.000 1.00
Attachment 4 

April 19, 2013 Page 4-12 

Table 4-2. Summary of River-specific Lead Fish Tissue Concentration Sampling Data 

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

6365340 T4 9/15/1997 9/11/1998 6 1.283 1.006365450 T3 10/23/1996 10/23/1996 3 1.000 1.006365450 T4 11/6/1996 11/5/2001 6 1.000 1.006369124 T3 10/9/1996 10/4/2001 6 1.000 1.006369124 T4 10/31/1996 11/5/2001 6 1.000 1.006498944 T3 12/11/1991 12/11/1991 5 2.000 2.006499272 T3 11/28/1995 11/28/1995 3 1.000 1.006500402 T3 12/20/1999 12/20/1999 3 1.000 1.006500402 T4 12/20/1999 12/20/1999 3 1.000 1.006668523 T3 6/6/2000 6/6/2000 3 0.089 0.056920804 T4 10/4/1996 10/4/1996 1 0.500 0.506925367 T4 9/25/1997 9/25/1997 1 0.500 0.507626082 T4 1/1/2002 1/1/2002 2 0.000 0.009614577 T4 1/1/2002 1/1/2002 1 1.900 1.909721701 T4 1/1/1998 1/1/1998 1 1.800 1.80

11617363 T3 9/27/1999 9/27/1999 2 0.215 0.2111617363 T4 9/27/1999 9/27/1999 4 0.188 0.1812035635 T4 1/1/2002 1/1/2002 1 1.000 1.0014348510 T3 10/3/1995 9/21/1999 6 5.000 1.0014348510 T4 7/20/2000 7/20/2000 3 9.000 9.0015380191 T3 9/8/1997 9/8/1997 2 0.090 0.0915434032 T3 10/10/2001 10/10/2001 12 0.040 0.0315434032 T4 10/10/2001 10/10/2001 2 0.037 0.0315823185 T4 6/2/1997 6/2/1997 3 3.000 3.0015823217 T3 10/25/2000 10/26/2000 7 0.500 0.5015823217 T4 10/29/2000 10/29/2000 3 0.500 0.5015823319 T3 10/20/1993 10/20/1993 3 1.000 1.0015823319 T4 12/6/1993 5/22/1997 6 2.000 1.0019314268 T3 10/1/1996 10/1/1996 1 0.500 0.5019440411 T3 7/17/1997 7/17/1997 3 0.090 0.0919440411 T4 7/17/1997 7/17/1997 1 0.090 0.09
Attachment 4 

April 19, 2013 Page 4-13 

Table 4-2. Summary of River-specific Lead Fish Tissue Concentration Sampling Data 

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

19440417 T3 9/9/1996 9/9/1996 2 0.015 0.0019440431 T3 9/9/1996 9/1/2001 15 0.038 0.0019440431 T4 9/9/1996 9/1/2001 6 0.661 0.0019453185 T3 1/1/1998 1/1/1998 2 0.253 0.2219453185 T4 1/1/1998 1/1/1998 1 0.380 0.3824750511 T3 10/4/1996 8/2/2001 8 0.129 0.08

901990078 T4 1/1/1998 1/1/1998 1 1.600 1.60902220012 T3 10/9/1993 11/23/1994 6 1.000 1.00902220012 T4 10/7/1993 11/23/1994 6 1.000 1.00902770057 T3 11/4/1993 10/11/1995 6 1.083 1.00902770057 T4 11/4/1993 12/10/1993 3 1.000 1.00

Source: U.S. EPA, 2013. 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

401964 T3 6/9/1992 6/9/1992 5 0.110 0.10401964 T4 6/9/1992 6/9/1992 2 0.225 0.10401986 T3 6/9/1992 6/9/1992 4 0.100 0.10401986 T4 6/9/1992 6/9/1992 2 0.125 0.10465516 T3 4/19/1999 6/2/1999 7 0.125 0.05465516 T4 4/19/1999 4/19/1999 5 0.172 0.12465518 T3 9/1/2006 9/1/2006 10 0.104 0.03465518 T4 9/1/2006 9/1/2006 2 0.074 0.05842174 T3 6/14/1994 6/14/1994 6 0.103 0.10842174 T4 6/14/1994 6/14/1994 1 0.140 0.14
Attachment 4 

April 19, 2013 Page 4-14 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

908917 T3 9/9/1995 9/9/1995 1 0.080 0.08908917 T4 9/9/1995 9/9/1995 1 0.070 0.07

1011744 T4 5/18/1995 5/18/1995 1 0.090 0.091100520 T4 7/29/1992 7/29/1992 2 0.370 0.241104098 T3 6/6/1996 6/6/1996 2 0.020 0.011104234 T3 9/6/1990 11/10/1997 50 0.267 0.031104234 T4 9/6/1990 10/4/1990 8 0.368 0.111576378 T3 8/30/1990 8/30/1990 1 0.040 0.041576378 T4 8/30/1990 10/27/1998 9 0.071 0.041643099 T3 6/19/1991 5/9/1994 2 0.125 0.091771994 T3 7/3/1991 7/3/1991 1 0.080 0.081771994 T4 7/3/1991 7/3/1991 4 0.190 0.111777458 T4 8/1/1989 9/6/1991 11 0.735 0.231777516 T4 9/14/1993 9/14/1993 2 0.025 0.021825520 T3 9/2/1999 9/2/1999 2 0.090 0.091825520 T4 9/2/1999 9/2/1999 1 0.150 0.151825588 T3 8/30/1999 8/30/1999 1 0.200 0.201825588 T4 8/30/1999 8/30/1999 1 0.250 0.251827692 T3 8/31/1999 8/31/1999 3 0.127 0.091827692 T4 8/31/1999 8/31/1999 1 0.160 0.161827814 T3 9/1/1999 9/1/1999 3 0.103 0.071827814 T4 9/1/1999 9/1/1999 1 0.160 0.161875133 T3 1/1/1989 9/15/1992 7 0.113 0.081875133 T4 1/1/1989 9/15/1992 4 0.145 0.061875235 T3 6/27/1990 6/27/1990 1 0.100 0.101875235 T4 6/27/1990 6/27/1990 1 0.270 0.271918174 T3 1/1/1993 1/1/1993 20 0.133 0.051918174 T4 1/1/1993 1/1/1993 14 0.186 0.071920666 T4 3/26/1998 3/26/1998 4 0.125 0.091949119 T3 10/9/1996 7/18/2001 6 0.105 0.071949119 T4 7/18/2001 7/18/2001 3 0.178 0.12
Attachment 4 

April 19, 2013 Page 4-15 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

1953637 T3 1/1/1991 1/1/1997 33 0.132 0.011953637 T4 1/1/1991 1/1/1997 17 0.282 0.192121080 T3 9/20/1994 9/20/1994 21 0.067 0.012121080 T4 9/20/1994 9/20/1994 11 0.122 0.052275959 T3 8/13/1990 9/5/2000 11 0.112 0.072277349 T3 8/31/1990 9/15/1993 4 0.083 0.052293124 T3 1/1/1991 1/1/1996 36 0.154 0.072293124 T4 1/1/1991 12/10/1993 43 0.292 0.062590201 T3 1/1/1998 1/1/1998 1 0.020 0.022590201 T4 7/1/1990 7/1/1990 2 0.036 0.012590277 T3 6/18/1990 10/22/1993 3 0.144 0.072590277 T4 11/4/1992 11/4/1992 6 0.132 0.072591435 T3 1/1/1997 1/1/1997 1 0.012 0.012593585 T3 1/1/1997 1/1/1997 1 0.027 0.022603121 T3 8/9/1994 10/21/1995 3 0.417 0.362603121 T4 3/10/1992 3/10/1992 1 1.690 1.692651870 T4 9/21/1995 9/21/1995 2 0.035 0.022997936 T3 8/14/1990 9/16/1994 5 0.106 0.093125222 T3 8/27/1991 8/29/1995 3 0.067 0.033125222 T4 7/7/1993 8/29/1995 2 0.045 0.043286354 T3 11/13/1991 3/10/1999 14 0.105 0.103286386 T3 9/10/1997 9/10/1997 3 0.070 0.053286386 T4 9/10/1997 9/10/1997 4 0.220 0.153286494 T3 9/18/1990 9/18/1990 1 0.100 0.103286494 T4 9/18/1990 9/18/1990 1 0.300 0.303286570 T3 12/9/1994 12/9/1994 3 0.080 0.063286570 T4 12/9/1994 12/9/1994 3 0.237 0.173291996 T3 11/20/1991 11/20/1991 1 0.300 0.303298568 T3 1/1/1993 11/3/1999 24 0.074 0.013298568 T4 1/1/1993 11/3/1999 26 0.116 0.023298592 T3 9/18/1997 9/18/1997 3 0.040 0.03
Attachment 4 

April 19, 2013 Page 4-16 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

3298592 T4 9/16/1997 9/16/1997 3 0.233 0.173298608 T3 10/31/1991 10/31/1991 1 0.100 0.103298760 T3 10/27/1992 10/27/1992 4 0.153 0.103298760 T4 10/27/1992 10/27/1992 1 0.180 0.183298764 T3 1/1/1991 11/30/1999 31 0.036 0.013298764 T4 1/1/1991 9/20/1999 30 0.112 0.033298798 T3 1/1/1992 11/16/1999 28 0.028 0.013298798 T4 1/1/1992 11/16/1999 26 0.146 0.013369890 T3 8/25/1997 8/25/1997 1 0.060 0.063369890 T4 8/25/1997 8/25/1997 2 0.120 0.083369896 T3 1/1/1998 9/1/2003 14 0.145 0.053369896 T4 1/1/1998 9/1/2003 5 0.173 0.093369900 T3 7/1/2002 7/1/2002 4 0.138 0.083369900 T4 7/1/2002 7/1/2002 2 0.122 0.083424530 T3 4/4/1990 4/4/1990 3 0.200 0.203424530 T4 4/9/1990 4/11/1990 6 0.233 0.203434274 T3 1/1/1991 1/1/1997 56 0.080 0.013434274 T4 1/1/1991 1/1/1997 71 0.197 0.023434376 T3 11/20/1991 11/20/1991 5 0.140 0.103434376 T4 11/20/1991 11/20/1991 5 0.270 0.203434426 T3 11/10/1993 11/3/1999 8 0.080 0.033434426 T4 11/3/1999 11/3/1999 3 0.220 0.123443442 T3 10/27/1998 10/27/1998 3 0.100 0.103443442 T4 10/27/1998 10/27/1998 3 0.067 0.013443586 T3 11/7/1991 10/28/1993 9 0.072 0.013443586 T4 11/7/1991 11/7/1991 3 0.133 0.103483173 T3 8/9/1999 8/9/1999 4 0.216 0.143483191 T3 1/1/1994 1/1/1994 2 0.115 0.103483191 T4 1/1/1994 1/1/1994 22 0.150 0.063486833 T3 7/22/1997 8/9/1999 7 0.175 0.103486833 T4 7/22/1997 8/9/1999 2 0.107 0.08
Attachment 4 

April 19, 2013 Page 4-17 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

3486865 T3 8/10/1999 8/10/1999 4 0.200 0.053486865 T4 8/10/1999 8/10/1999 3 0.084 0.063486895 T3 1/1/1992 10/30/2000 34 0.098 0.023486895 T4 1/1/1995 10/30/2000 20 0.171 0.053486931 T3 10/21/1998 10/18/2000 15 0.143 0.043486931 T4 10/18/2000 10/18/2000 1 0.159 0.153488041 T3 8/11/1999 8/11/1999 4 0.141 0.063488041 T4 8/11/1999 8/11/1999 1 0.077 0.073489643 T3 1/1/1995 8/11/1999 7 0.141 0.073489643 T4 1/1/1995 1/1/1995 5 0.116 0.083489669 T3 1/1/1990 8/11/1999 22 0.127 0.033489669 T4 1/1/1990 1/1/1993 15 0.155 0.023601014 T4 8/5/1991 8/5/1991 1 0.210 0.213624709 T4 9/12/1990 9/12/1990 1 0.160 0.163629245 T3 1/1/1990 1/1/1990 1 0.110 0.113646872 T3 7/24/1990 10/28/1993 4 0.120 0.063717140 T3 9/28/1995 9/28/1995 3 0.107 0.103727853 T3 8/31/1995 8/31/1995 2 0.175 0.163727857 T3 11/19/1990 10/7/1993 6 0.088 0.063729559 T3 7/19/1994 7/19/1994 1 0.080 0.083737637 T3 9/17/1990 8/25/1995 14 0.178 0.073768864 T3 7/17/1999 9/21/1999 4 0.153 0.103768864 T4 10/11/1999 10/11/1999 1 0.110 0.113768870 T3 6/4/2002 7/20/2005 10 0.077 0.013768870 T4 6/4/2002 9/18/2003 4 0.094 0.073786927 T3 9/29/1995 9/29/1995 2 0.100 0.103786927 T4 9/29/1995 9/29/1995 1 0.100 0.103821273 T3 9/9/1996 9/9/1996 1 0.064 0.063821343 T3 7/1/2002 9/1/2004 8 0.091 0.043821343 T4 7/1/2002 7/1/2002 1 0.098 0.093821351 T3 1/1/1998 1/1/1998 1 0.147 0.14
Attachment 4 

April 19, 2013 Page 4-18 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

3821351 T4 1/1/1998 1/1/1998 3 0.213 0.083836017 T3 4/22/1998 4/22/1998 1 0.380 0.383836017 T4 4/22/1998 4/22/1998 3 0.393 0.233836053 T3 4/15/1998 4/15/1999 6 0.198 0.093836053 T4 4/15/1998 4/15/1998 2 0.635 0.533838221 T4 7/31/1990 7/31/1990 1 0.390 0.393883804 T3 1/1/1995 1/1/1995 3 0.133 0.073883804 T4 1/1/1995 1/1/1995 16 0.189 0.023883918 T3 10/22/1998 10/26/1998 4 0.144 0.053883918 T4 10/26/1998 10/26/1998 1 0.152 0.153884972 T3 10/20/1998 10/20/1998 5 0.141 0.073884972 T4 10/20/1998 10/20/1998 1 0.056 0.053885234 T3 10/22/1998 10/22/1998 9 0.057 0.023885234 T4 10/22/1998 10/22/1998 2 0.201 0.153885820 T3 10/20/1998 12/4/1998 11 0.104 0.043885820 T4 10/20/1998 10/20/1998 3 0.162 0.073885838 T3 10/20/1998 10/20/1998 4 0.094 0.073885878 T3 10/20/1998 10/22/1998 4 0.040 0.023885882 T3 10/26/1998 10/26/1998 6 0.118 0.023885882 T4 10/26/1998 10/26/1998 1 0.136 0.133885946 T3 10/27/1998 10/27/1998 3 0.126 0.023885950 T3 10/26/1998 10/27/1998 9 0.088 0.013886008 T3 10/21/1998 10/21/1998 7 0.155 0.093886022 T3 10/21/1998 10/21/1998 5 0.106 0.063886042 T3 10/19/1998 10/19/1998 6 0.154 0.093886042 T4 10/19/1998 10/19/1998 2 0.136 0.083886048 T3 8/8/1990 10/19/1998 9 0.135 0.063886048 T4 8/8/1990 10/19/1998 2 0.373 0.313886058 T3 1/1/1993 1/1/1994 31 0.161 0.063886058 T4 1/1/1993 1/1/1994 48 0.225 0.084199356 T3 8/18/1993 8/18/1993 1 0.780 0.78
Attachment 4 

April 19, 2013 Page 4-19 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

4200472 T4 9/30/1992 9/30/1992 1 3.300 3.304200544 T4 9/30/1992 9/30/1992 1 2.540 2.544481763 T3 1/1/1997 1/1/1997 1 0.023 0.024481801 T3 1/1/1998 1/1/1998 1 0.141 0.144481805 T3 5/21/1993 5/21/1993 4 0.080 0.074481805 T4 5/21/1993 5/21/1993 2 0.140 0.134481897 T3 6/5/1990 6/5/1990 1 0.116 0.114489200 T3 1/1/1998 1/1/1998 1 0.210 0.214496220 T3 1/1/1998 1/1/1998 1 0.125 0.124507430 T3 9/16/1993 9/16/1993 6 0.078 0.034507430 T4 9/16/1993 9/16/1993 1 0.100 0.104518742 T3 8/4/1993 8/4/1993 1 0.110 0.114532167 T4 12/15/1993 12/15/1993 19 0.088 0.034726659 T3 10/15/1990 1/1/2000 6 0.015 0.014726659 T4 10/15/1990 1/1/2000 4 0.022 0.004754924 T3 10/11/1995 10/11/1995 1 0.060 0.064782413 T3 10/7/1994 10/7/1994 1 0.160 0.164782483 T3 9/15/1993 9/15/1993 2 0.220 0.154782483 T4 10/22/1993 10/22/1993 1 0.270 0.274782593 T3 8/27/1993 10/22/1993 3 0.383 0.224782753 T3 9/2/1992 10/3/1995 8 0.380 0.074782753 T4 11/3/1994 11/3/1994 5 0.220 0.074836824 T3 1/1/1989 1/1/1989 1 0.020 0.024836968 T3 8/18/1992 8/18/1992 4 0.135 0.074836968 T4 8/18/1992 8/18/1992 2 0.330 0.244858823 T3 9/18/1990 9/18/1990 3 0.140 0.114858823 T4 9/18/1990 9/18/1990 3 0.180 0.094998241 T3 8/27/1992 8/24/1994 2 0.060 0.065217233 T3 1/1/1992 1/1/1993 6 0.085 0.035217233 T4 1/1/1992 1/1/1993 7 0.201 0.135218213 T3 7/21/1997 7/21/1997 3 0.077 0.04
Attachment 4 

April 19, 2013 Page 4-20 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

5218267 T3 8/3/1991 8/3/1999 4 0.127 0.065218267 T4 8/3/1999 8/3/1999 2 0.115 0.105803966 T4 9/4/1991 9/4/1991 1 0.080 0.086228858 T3 7/12/1998 7/12/1998 8 0.139 0.026231874 T4 4/15/1997 4/28/1998 50 0.291 0.076341430 T3 8/23/2001 8/23/2001 1 0.181 0.186341430 T4 8/23/2001 8/23/2001 2 0.248 0.156341626 T3 10/31/1990 9/14/1999 5 0.418 0.106341626 T4 10/31/1990 9/14/1999 4 0.515 0.306361840 T3 9/23/1992 9/23/1992 6 0.047 0.016365340 T3 9/15/1997 10/4/2001 9 0.101 0.016365340 T4 9/15/1997 9/11/1998 6 0.214 0.046365450 T3 10/23/1996 10/23/1996 3 0.400 0.226365450 T4 11/6/1996 11/5/2001 6 0.467 0.016369124 T3 10/9/1996 10/4/2001 6 0.207 0.116369124 T4 10/31/1996 11/5/2001 6 0.270 0.246498944 T3 12/11/1991 12/11/1991 5 0.100 0.106499272 T3 11/28/1995 11/28/1995 3 0.134 0.076500402 T3 12/20/1999 12/20/1999 3 0.100 0.106500402 T4 12/20/1999 12/20/1999 3 0.268 0.206658351 T3 6/25/1999 6/25/1999 2 0.140 0.136658351 T4 6/25/1999 6/25/1999 8 0.161 0.116668523 T3 6/6/2000 6/6/2000 36 0.325 0.126668523 T4 6/6/2000 6/6/2000 4 0.178 0.126906557 T3 10/9/2002 10/9/2002 2 0.018 0.016906557 T4 10/9/2002 10/9/2002 3 0.018 0.016907783 T3 9/30/2005 9/30/2005 1 0.114 0.116907783 T4 9/30/2005 9/30/2005 3 0.181 0.116919008 T3 9/13/1995 9/20/1995 2 0.100 0.106919008 T4 9/27/1994 9/20/1995 3 0.273 0.106919906 T3 8/27/2003 8/27/2003 4 0.018 0.01
Attachment 4 

April 19, 2013 Page 4-21 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

6919906 T4 8/27/2003 6/25/2007 12 0.079 0.026920804 T4 10/4/1996 10/17/2002 2 0.082 0.076925247 T3 10/3/1994 10/3/1994 1 0.210 0.216925247 T4 10/3/1994 10/3/1994 1 0.280 0.286925271 T3 11/16/2006 11/16/2006 1 0.500 0.506925271 T4 11/16/2006 11/16/2006 7 0.414 0.406925279 T3 3/25/2003 3/25/2003 2 0.110 0.066925279 T4 3/25/2003 3/25/2003 3 0.470 0.186925367 T4 9/25/1997 9/25/1997 1 0.260 0.267268301 T3 8/31/1993 9/26/1994 4 0.048 0.037310895 T3 9/8/1991 9/8/1991 3 0.050 0.047312373 T3 8/1/1991 9/7/1993 4 0.095 0.037312377 T3 9/5/1991 9/5/1991 1 0.040 0.047626082 T3 1/1/1990 1/1/1990 1 0.090 0.097626082 T4 1/1/1990 1/1/2002 3 0.052 0.037629032 T4 8/17/1992 5/4/1993 3 0.370 0.217703046 T3 5/12/1997 5/12/1997 1 0.480 0.487703046 T4 5/11/1997 5/11/1997 1 0.280 0.288100063 T3 6/24/1998 9/17/1998 10 0.298 0.108100063 T4 6/5/1998 9/17/1998 23 0.421 0.218153461 T4 8/21/1995 8/21/1995 1 0.180 0.188153799 T3 8/13/1993 8/13/1993 1 0.350 0.358153799 T4 7/28/1994 7/28/1994 2 0.150 0.108431696 T3 10/12/1995 10/12/1995 1 0.200 0.208431696 T4 10/12/1995 10/12/1995 1 0.430 0.438653074 T4 7/8/1991 7/8/1991 1 0.050 0.058673667 T3 1/1/1999 1/1/1999 1 0.025 0.028673667 T4 1/1/1999 1/1/1999 1 0.051 0.058692997 T3 1/1/1999 1/1/1999 2 0.029 0.028692997 T4 1/1/1999 1/1/1999 1 0.076 0.078693827 T3 1/1/1999 1/1/1999 6 0.041 0.01
Attachment 4 

April 19, 2013 Page 4-22 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

8696407 T3 5/8/1991 5/8/1991 1 0.050 0.059005799 T3 7/27/1989 5/7/1996 103 0.164 0.039005799 T4 7/27/1989 5/7/1996 32 0.282 0.039008501 T3 5/12/1993 5/12/1993 10 0.112 0.039008501 T4 5/12/1993 5/12/1993 10 0.278 0.169071760 T3 7/28/1993 8/2/1993 13 0.488 0.379071760 T4 7/28/1993 8/2/1993 14 1.607 0.929071840 T3 7/27/1993 1/1/2000 13 0.384 0.289071840 T4 7/27/1993 1/1/2001 29 0.948 0.269071892 T3 1/1/2000 1/1/2000 2 0.375 0.279071892 T4 1/1/2000 1/1/2002 9 0.843 0.289168578 T3 1/1/2000 1/1/2002 4 0.983 0.269168578 T4 1/1/2000 1/1/2002 3 0.987 0.329175258 T3 1/1/2000 1/1/2002 8 0.381 0.279175258 T4 1/1/2000 1/1/2002 7 0.876 0.349614545 T3 1/1/2000 1/1/2002 31 0.448 0.269614545 T4 11/8/1993 1/1/2002 44 1.593 0.489614577 T3 11/8/1993 1/1/2002 20 0.558 0.269614577 T4 11/8/1993 1/1/2002 34 1.197 0.259614581 T3 4/19/1995 1/1/2001 3 0.447 0.419614581 T4 4/19/1995 1/1/2001 16 1.159 0.349617403 T3 1/1/2001 1/1/2001 10 0.428 0.329617403 T4 1/1/2001 1/1/2001 13 0.988 0.409619105 T3 1/1/2001 1/1/2001 7 0.334 0.289619105 T4 1/1/2001 1/1/2001 10 1.140 0.439619127 T3 1/1/2001 1/1/2001 3 0.293 0.259619127 T4 1/1/2001 1/1/2001 8 1.136 0.309619179 T3 1/1/2000 1/1/2002 17 0.429 0.259619179 T4 1/1/2000 1/1/2002 25 0.774 0.299619267 T3 1/1/2001 1/1/2001 1 0.430 0.439619267 T4 1/1/2001 1/1/2001 11 0.686 0.30
Attachment 4 

April 19, 2013 Page 4-23 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

9643431 T3 1/1/2002 1/1/2002 1 0.350 0.359643431 T4 3/9/1994 1/1/2002 19 0.487 0.259645687 T4 1/1/2000 1/1/2002 24 0.581 0.289660602 T3 1/1/2000 1/1/2002 8 0.376 0.269660602 T4 1/1/2000 1/1/2002 19 1.032 0.279661944 T3 1/1/2002 1/1/2002 1 0.310 0.319661944 T4 1/1/2002 1/1/2002 1 0.320 0.329672398 T3 2/24/1994 1/1/2002 8 0.375 0.259672398 T4 2/24/1994 1/1/2002 24 0.737 0.259681638 T4 1/1/2002 1/1/2002 7 0.557 0.299705110 T3 4/7/1994 1/1/2000 5 0.262 0.259705110 T4 4/7/1994 1/1/2002 5 0.390 0.259718461 T4 1/1/2000 1/1/2000 1 0.290 0.299718493 T4 1/1/2000 1/1/2002 8 0.584 0.269721701 T3 6/15/1994 6/15/1994 3 0.250 0.259721701 T4 6/15/1994 1/1/2001 7 0.303 0.259736604 T4 1/1/2002 1/1/2002 1 1.400 1.409736646 T3 1/1/2002 1/1/2002 1 0.360 0.369736646 T4 1/1/2001 1/1/2002 4 0.328 0.289756922 T3 9/11/1990 9/11/1990 5 0.380 0.029756922 T4 9/11/1990 9/11/1990 1 0.080 0.089867726 T3 1/1/2002 1/1/2002 1 0.260 0.269867726 T4 1/1/2000 1/1/2002 8 0.426 0.259869412 T4 1/1/2001 1/1/2001 7 0.531 0.299869858 T4 1/1/2001 1/1/2001 5 0.814 0.449871292 T4 1/1/2001 1/1/2001 1 0.450 0.45

10055726 T3 1/1/1998 1/1/1998 1 0.015 0.0110067517 T3 6/23/1992 6/23/1992 1 0.030 0.0310067679 T3 6/25/1992 6/25/1992 1 0.030 0.0310286212 T3 8/26/1991 9/22/1995 11 0.219 0.0510286284 T3 8/15/1991 9/21/1995 9 0.218 0.08
Attachment 4 

April 19, 2013 Page 4-24 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

10382121 T3 9/26/1995 9/26/1995 8 0.284 0.1810382121 T4 9/26/1995 9/26/1995 2 0.370 0.3410451378 T3 9/6/1990 9/6/1990 1 0.120 0.1210453358 T3 3/23/1995 3/23/1995 2 0.130 0.1110453358 T4 3/23/1995 3/23/1995 5 0.506 0.1110850314 T3 8/25/1992 10/9/1995 80 0.099 0.0110850314 T4 11/17/1993 5/30/1995 25 0.437 0.1311617363 T3 9/27/1999 9/27/1999 2 0.055 0.0411617363 T4 9/27/1999 9/27/1999 4 0.080 0.0611799705 T4 9/21/1995 9/21/1995 1 0.400 0.4011802429 T4 8/25/1993 8/25/1993 1 0.410 0.4111878860 T3 5/12/1993 5/13/1993 6 0.084 0.0011878860 T4 5/12/1993 5/12/1993 1 0.160 0.1611916315 T3 8/27/1992 8/29/1995 4 0.268 0.1211919825 T3 8/27/1991 9/14/1995 2 0.205 0.0912026640 T4 6/6/1996 6/6/1996 6 0.477 0.2612035635 T3 1/1/2000 1/1/2000 1 0.270 0.2712035635 T4 1/1/2001 1/1/2001 1 1.500 1.5012035729 T4 1/1/2000 1/1/2002 5 0.406 0.2912049288 T3 1/1/1999 1/1/1999 4 0.026 0.0112049288 T4 1/1/1999 1/1/1999 1 0.041 0.0412135514 T3 8/19/1993 8/19/1993 5 0.200 0.1612135514 T4 7/7/1987 8/19/1993 31 0.426 0.1012241730 T3 6/27/1991 6/27/1991 10 0.172 0.0312241730 T4 6/27/1991 6/27/1991 10 0.182 0.1212262768 T3 7/2/1990 8/12/1994 8 0.148 0.0112262768 T4 7/2/1990 8/12/1994 3 0.407 0.1812263226 T3 8/27/1992 8/27/1992 3 0.110 0.1012263226 T4 8/27/1992 8/27/1992 1 0.120 0.1212263322 T3 7/18/1990 7/18/1990 15 0.174 0.0312263322 T4 7/18/1990 7/18/1990 1 0.170 0.17
Attachment 4 

April 19, 2013 Page 4-25 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

12264978 T3 7/18/1991 7/18/1991 2 0.075 0.0712265010 T3 8/11/1994 8/11/1994 4 0.213 0.1512265010 T4 8/11/1994 8/11/1994 4 0.368 0.1112265018 T3 7/3/1990 8/27/1992 5 0.184 0.1312265018 T4 7/3/1990 8/27/1992 2 0.200 0.1113211652 T3 7/25/1990 8/16/1995 3 0.123 0.0413437941 T3 7/6/1990 8/18/1994 7 0.157 0.0713437941 T4 10/1/1992 8/19/1994 2 0.110 0.0713438179 T4 7/9/1990 7/9/1990 1 0.150 0.1513438213 T4 7/10/1990 7/10/1990 1 0.030 0.0313438377 T4 7/10/1990 7/10/1990 1 0.040 0.0413634005 T3 4/9/1993 5/13/1993 8 0.129 0.0713634005 T4 7/22/1991 5/13/1993 29 0.178 0.0613637489 T3 9/5/1990 9/5/1990 4 0.110 0.1013637489 T4 9/5/1990 9/26/1990 14 0.323 0.1113637657 T3 10/12/1993 10/12/1993 1 0.200 0.2013637657 T4 10/12/1993 10/12/1993 3 0.253 0.1714190079 T3 6/1/1990 6/1/1990 1 0.050 0.0514348510 T3 10/3/1995 9/21/1999 6 0.437 0.1814348510 T4 7/20/2000 7/20/2000 3 0.387 0.1814363620 T3 9/15/1993 9/15/1993 3 0.047 0.0314363620 T4 10/4/1993 10/4/1993 1 0.160 0.1614363660 T3 10/11/1995 10/11/1995 2 0.150 0.1414363660 T4 10/11/1995 10/11/1995 1 0.140 0.1414364756 T3 8/11/1999 8/11/1999 1 0.050 0.0514640421 T3 1/1/1997 1/1/1997 1 0.063 0.0614640421 T4 1/1/1997 1/1/1997 1 0.140 0.1414640581 T3 1/1/1997 1/1/1997 3 0.131 0.0314640581 T4 1/1/1997 1/1/1997 2 0.114 0.0714641405 T3 6/19/1990 5/17/1993 6 0.123 0.1014641405 T4 6/18/1991 5/17/1993 3 0.173 0.14
Attachment 4 

April 19, 2013 Page 4-26 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

14642619 T3 10/8/1991 11/10/1993 3 0.140 0.1014642619 T4 11/12/1993 11/12/1993 1 0.240 0.2414643271 T3 10/9/1991 11/5/1993 3 0.287 0.2414643271 T4 11/11/1993 11/23/1993 2 0.710 0.5914702994 T4 10/10/1993 10/10/1993 9 0.327 0.1114703132 T3 6/10/1993 6/10/1993 15 0.244 0.0814703132 T4 6/10/1993 9/8/1994 31 0.375 0.0814703138 T4 9/25/1991 8/4/1993 16 0.234 0.0214709872 T4 10/1/1993 10/1/1993 15 0.341 0.1214732410 T4 8/24/1993 10/5/1993 9 0.309 0.1814835417 T4 7/9/1991 7/9/1991 1 0.140 0.1414837903 T4 7/8/1991 7/8/1991 1 0.130 0.1315075538 T3 8/19/1994 8/19/1994 7 0.264 0.0515075538 T4 8/19/1994 8/19/1994 4 0.308 0.2315380191 T3 9/8/1997 9/8/1997 2 0.200 0.1815384751 T3 1/1/1993 1/1/1993 6 0.108 0.0615384751 T4 1/1/1993 1/1/1993 2 0.065 0.0615385463 T3 1/1/1992 1/1/1994 13 0.052 0.0115385463 T4 1/1/1992 1/1/1994 7 0.059 0.0415429744 T3 9/1/2004 9/1/2004 2 0.099 0.0615429766 T3 7/1/2002 7/1/2002 2 0.096 0.0615429766 T4 7/1/2002 7/1/2002 1 0.175 0.1715433980 T3 7/1/2002 7/1/2002 1 0.175 0.1715434032 T3 10/10/2001 10/10/2001 12 0.097 0.0215434032 T4 10/10/2001 10/10/2001 2 0.074 0.0615823185 T3 1/1/1991 1/1/1996 40 0.106 0.0115823185 T4 1/1/1991 6/2/1997 21 0.191 0.0115823217 T3 10/25/2000 10/26/2000 7 0.185 0.0415823217 T4 10/29/2000 10/29/2000 3 0.269 0.1615823319 T3 10/20/1993 10/20/1993 3 0.047 0.0215823319 T4 12/6/1993 5/22/1997 6 0.162 0.04
Attachment 4 

April 19, 2013 Page 4-27 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

15823591 T3 10/17/1990 11/6/1992 6 0.367 0.1015823591 T4 10/17/1990 11/6/1992 5 0.420 0.1015823825 T3 11/3/1993 10/24/1995 8 0.104 0.1015823825 T4 11/3/1993 10/24/1995 3 0.130 0.1017219506 T3 9/1/1991 9/24/1995 4 0.145 0.0417246410 T3 9/4/1991 9/4/1991 1 0.070 0.0717414772 T3 9/10/1994 9/10/1994 1 0.090 0.0917556797 T3 9/18/1990 9/18/1990 1 0.090 0.0918096323 T4 1/1/1994 1/1/1994 2 0.485 0.4518096343 T3 1/1/1997 1/1/1997 1 0.220 0.2218096343 T4 1/1/1994 1/1/1997 5 0.330 0.2318105054 T3 1/1/1994 1/1/1994 1 0.600 0.6018105054 T4 1/1/1994 1/1/1994 2 0.575 0.5418106998 T4 1/1/1995 1/1/1996 8 0.799 0.5018121286 T3 1/1/1995 1/1/1995 2 0.870 0.4518121286 T4 1/1/1994 1/1/1996 17 1.019 0.5818122374 T4 1/1/1995 1/1/1995 2 0.865 0.8318122772 T4 1/1/1995 1/1/1995 1 0.150 0.1518210868 T3 10/13/1993 10/13/1993 1 0.100 0.1018210868 T4 10/13/1993 10/13/1993 1 0.240 0.2418211376 T3 10/24/1991 10/24/1991 2 0.500 0.5018211376 T4 10/24/1991 10/24/1991 1 0.500 0.5018215698 T3 10/13/1993 12/2/1997 2 0.125 0.1018215698 T4 10/13/1993 12/2/1997 2 0.180 0.1518224417 T3 10/29/1991 10/29/1991 1 0.500 0.5018224417 T4 10/29/1991 10/29/1991 1 0.500 0.5018229349 T3 10/29/1991 10/29/1991 1 0.500 0.5018229349 T4 10/29/1991 10/29/1991 1 0.500 0.5018229485 T3 12/4/1992 12/4/1992 1 0.100 0.1018229485 T4 12/4/1992 12/4/1992 1 0.100 0.1018229843 T3 12/3/1992 12/3/1992 1 0.100 0.10
Attachment 4 

April 19, 2013 Page 4-28 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

18229843 T4 12/3/1992 12/3/1992 1 0.100 0.1018229873 T3 12/2/1992 12/2/1992 3 0.100 0.1018229873 T4 12/2/1992 12/2/1992 1 0.100 0.1018229909 T3 12/2/1992 12/2/1992 1 0.100 0.1018229909 T4 12/2/1992 12/2/1992 1 0.310 0.3118471066 T3 9/14/1992 9/29/1995 8 0.291 0.1418477459 T3 8/20/1991 10/6/1995 9 0.211 0.1318477459 T4 8/20/1991 8/20/1991 1 0.160 0.1618519881 T3 10/16/1997 10/16/1997 1 0.100 0.1018519881 T4 10/16/1997 10/16/1997 1 0.420 0.4218519935 T3 11/8/1990 11/6/2006 2 0.301 0.1018519935 T4 11/8/1990 11/6/2006 4 0.587 0.4418522283 T3 11/14/1990 11/7/2006 10 0.275 0.1018522283 T4 11/14/1990 11/7/2006 10 0.918 0.1918524217 T4 11/21/2006 11/21/2006 1 0.100 0.1018526395 T3 11/7/1990 11/7/1990 3 0.500 0.5018526395 T4 11/7/1990 11/7/1990 4 0.500 0.5018540822 T3 10/24/1991 10/24/1991 2 0.500 0.5018540822 T4 10/24/1991 10/24/1991 1 0.700 0.7018546622 T3 10/11/2006 10/11/2006 1 0.116 0.1118546622 T4 10/11/2006 10/11/2006 1 0.100 0.1018548394 T3 10/21/1993 10/11/2006 3 0.100 0.1018548394 T4 10/21/1993 10/11/2006 2 0.100 0.1018548516 T3 10/21/1993 10/12/2006 3 0.100 0.1018548516 T4 10/21/1993 10/12/2006 2 0.300 0.1018567449 T3 11/8/1994 11/8/1994 1 0.100 0.1018567449 T4 11/8/1994 11/8/1994 1 0.330 0.3318592162 T3 11/8/1994 11/8/1994 1 0.100 0.1018592162 T4 11/8/1994 11/8/1994 1 0.170 0.1718822526 T3 10/5/1992 10/1/1993 5 0.160 0.1119085479 T3 2/22/1991 8/1/2001 28 0.125 0.01
Attachment 4 

April 19, 2013 Page 4-29 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

19085479 T4 2/20/1991 8/1/2001 7 0.211 0.0619221041 T3 1/1/1994 1/1/1994 1 0.150 0.1519221041 T4 1/1/1994 1/1/1994 1 0.670 0.6719314268 T3 10/1/1996 10/1/1996 1 0.150 0.1519314276 T3 8/21/2002 4/21/2003 6 0.033 0.0119314276 T4 8/21/2002 4/21/2003 5 0.081 0.0119315482 T3 9/15/1994 9/15/1994 1 0.200 0.2019315482 T4 9/15/1994 9/15/1994 1 0.200 0.2019440411 T3 7/17/1997 7/17/1997 4 0.063 0.0219440411 T4 7/17/1997 7/17/1997 1 0.080 0.0819440417 T3 9/9/1996 9/9/1996 2 0.144 0.0919440427 T3 7/1/2002 7/1/2002 2 0.103 0.0519440431 T3 9/9/1996 9/1/2003 21 0.126 0.0419440431 T4 9/9/1996 9/1/2003 7 0.129 0.0719443001 T3 7/1/2002 7/1/2002 2 0.129 0.1219443001 T4 7/1/2002 7/1/2002 1 0.118 0.1119453173 T3 7/1/2002 7/1/2002 1 0.151 0.1519453173 T4 7/1/2002 7/1/2002 2 0.135 0.1119453185 T3 1/1/1998 1/1/1998 3 0.130 0.1219453185 T4 1/1/1998 1/1/1998 1 0.139 0.1319455327 T3 1/1/1995 1/1/1995 5 0.118 0.0419455327 T4 1/1/1995 1/1/1995 5 0.154 0.0319464262 T3 9/22/1994 10/4/1995 3 0.113 0.0719464300 T3 8/29/1995 8/29/1995 1 0.070 0.0719621672 T4 10/31/1991 10/31/1991 1 0.500 0.5019623798 T3 10/29/1991 10/29/1991 1 0.190 0.1919626208 T3 9/24/1992 9/30/1993 2 0.100 0.1019646610 T4 9/24/1991 9/24/1991 1 0.500 0.5019696569 T3 12/9/1990 12/9/1990 1 0.100 0.1019696763 T3 10/25/1991 10/21/1992 2 0.100 0.1019918046 T3 7/26/1994 7/26/1994 8 0.036 0.01
Attachment 4 

April 19, 2013 Page 4-30 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

19918046 T4 7/26/1994 7/26/1994 3 0.123 0.0620969532 T3 10/5/1990 10/16/1991 2 0.100 0.1020969532 T4 10/5/1990 10/16/1991 2 0.175 0.1221642184 T3 11/1/2006 11/1/2006 1 0.141 0.1421642184 T4 11/1/2006 11/1/2006 1 0.522 0.5221642344 T3 11/14/1990 11/1/2006 9 0.228 0.1021642344 T4 11/14/1990 11/1/2006 10 0.438 0.1021687206 T3 10/3/1991 10/3/1991 1 0.500 0.5021687206 T4 10/3/1991 10/3/1991 1 0.500 0.5021687488 T3 10/1/1991 10/1/1991 1 0.500 0.5021687488 T4 10/1/1991 10/1/1991 1 0.500 0.5021688838 T3 11/17/1993 11/17/1993 2 0.100 0.1021688838 T4 11/17/1993 11/17/1993 1 0.130 0.1321773149 T3 7/12/1991 7/12/1991 6 0.103 0.1021773149 T4 7/12/1991 7/12/1991 1 0.100 0.1021980005 T4 7/23/2002 7/23/2002 11 0.464 0.2322125748 T3 10/17/1990 10/17/1990 1 0.210 0.2122133925 T3 10/23/1990 10/23/1990 1 0.140 0.1422142502 T3 7/26/1990 7/26/1990 2 0.130 0.1022142502 T4 7/26/1990 7/26/1990 1 0.260 0.2622144632 T3 1/10/1992 1/10/1992 2 0.175 0.1722162094 T3 9/14/1990 9/14/1990 5 0.082 0.0422162094 T4 9/14/1990 9/14/1990 2 0.235 0.2222162876 T3 7/9/1991 6/24/1993 5 0.186 0.1022162876 T4 7/14/1993 7/14/1993 2 0.350 0.1922180294 T3 11/7/1991 12/8/1992 2 0.350 0.2922180294 T4 10/28/1993 10/28/1993 2 0.340 0.2422199717 T3 12/1/1992 12/1/1992 2 0.135 0.1022199717 T4 12/1/1992 12/1/1992 1 0.160 0.1622273562 T3 11/6/1991 11/3/1992 2 0.300 0.1022273562 T4 11/6/1991 11/3/1992 2 0.340 0.18
Attachment 4 

April 19, 2013 Page 4-31 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

22276352 T3 11/6/1991 11/3/1992 3 0.233 0.1022276352 T4 11/6/1991 11/3/1992 3 0.253 0.1022276470 T3 10/15/1991 10/15/1991 2 0.500 0.5022276470 T4 10/15/1991 10/15/1991 1 0.500 0.5022276502 T3 10/15/1991 10/15/1991 2 0.500 0.5022276502 T4 10/15/1991 10/15/1991 1 0.500 0.5022276622 T3 9/17/1991 10/13/1992 4 0.313 0.1022276622 T4 9/17/1991 10/13/1992 5 0.296 0.1022340547 T3 10/1/1991 9/20/1994 7 0.076 0.0522340547 T4 10/10/1991 9/20/1993 2 0.240 0.0322340577 T3 7/31/1991 9/19/1994 9 0.061 0.0422340577 T4 7/31/1991 9/25/1994 4 0.125 0.0822798749 T3 11/20/1990 10/5/1992 11 0.043 0.0022798749 T4 11/20/1990 11/15/1991 10 0.118 0.0324601391 T3 10/13/1994 3/22/2000 11 0.136 0.0524601391 T4 10/13/1994 3/22/2000 14 0.490 0.1924750511 T3 9/10/1990 8/2/2001 15 0.075 0.0024945757 T3 10/26/1993 10/26/1993 2 0.125 0.0824968800 T3 1/1/1997 1/1/1997 2 0.070 0.0224968800 T4 1/1/1997 1/1/1997 1 0.210 0.2125189323 T3 8/24/1993 8/24/1993 1 0.260 0.2625189323 T4 9/14/1995 9/14/1995 1 0.730 0.7325308910 T3 10/25/1990 10/25/1990 3 0.100 0.1025309336 T3 11/6/1990 11/6/1990 1 0.100 0.1025732008 T3 4/1/1991 3/3/1994 13 0.066 0.0025732008 T4 3/28/1991 6/12/1991 4 0.090 0.0226129469 T3 1/1/2000 1/1/2001 3 0.630 0.2826129469 T4 1/1/2000 1/1/2002 9 0.516 0.2926132687 T3 11/23/1992 11/23/1992 3 0.100 0.1026132687 T4 11/23/1992 11/23/1992 1 0.100 0.1026132733 T3 11/20/1992 11/2/1995 6 0.133 0.10
Attachment 4 

April 19, 2013 Page 4-32 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

26132733 T4 11/20/1992 11/2/1995 2 0.100 0.1026132735 T3 10/24/1994 10/24/1994 1 0.100 0.1026132735 T4 10/24/1994 10/24/1994 1 0.100 0.1026132759 T3 10/24/1994 10/24/1994 1 0.100 0.1026132759 T4 10/24/1994 10/24/1994 1 0.100 0.1026132777 T3 11/1/1995 11/1/1995 2 0.100 0.1026132777 T4 11/1/1995 11/1/1995 1 0.110 0.1126132779 T3 11/1/1995 11/1/1995 2 0.100 0.1026132779 T4 11/1/1995 11/1/1995 1 0.100 0.1026132807 T3 11/20/1992 11/1/1995 6 0.100 0.1026132807 T4 11/20/1992 11/1/1995 2 0.110 0.1026132877 T3 11/18/1992 11/18/1992 3 0.100 0.1026132877 T4 11/18/1992 11/18/1992 1 0.200 0.2026132921 T3 11/18/1992 11/18/1992 2 0.100 0.1026132921 T4 11/18/1992 11/18/1992 1 0.100 0.1026408394 T3 10/24/1993 10/24/1993 2 0.230 0.1926408394 T4 10/24/1993 10/24/1993 1 0.080 0.0826408398 T4 10/24/1993 10/24/1993 1 0.070 0.0726408400 T4 11/19/1993 10/26/1997 11 0.294 0.0626408402 T4 10/26/1993 8/26/1998 4 0.515 0.2628123868 T3 1/1/1992 1/1/1992 12 0.086 0.0428123868 T4 1/1/1992 1/1/1992 3 0.177 0.1028123876 T3 1/1/1992 1/1/1995 10 0.279 0.0528123876 T4 1/1/1992 1/1/1995 11 0.245 0.1230726982 T3 6/9/1987 6/10/1994 39 0.095 0.0130726982 T4 6/9/1987 6/9/1987 7 0.309 0.25

901990016 T3 1/1/2000 1/1/2002 10 0.983 0.28901990016 T4 1/1/2000 1/1/2002 15 0.645 0.27901990078 T3 1/1/2001 1/1/2002 6 0.542 0.31901990078 T4 1/1/2000 1/1/2001 12 0.567 0.26902000025 T3 1/1/2001 1/1/2001 1 0.290 0.29
Attachment 4 

April 19, 2013 Page 4-33 

Table 4-3. Summary of River-specific Mercury Fish Tissue Concentration Sampling Da

COMID Trophic Level Sample Date Minimum Sample Date Maximum Number of Samples 

Average Fish 

Tissue 

Concentration 

(mg/kg) 

Minimu

Tiss

Concent

(mg/

902000025 T4 1/1/2000 1/1/2002 13 0.462 0.25902220012 T3 10/9/1993 11/23/1994 6 0.083 0.04902220012 T4 10/7/1993 11/23/1994 6 0.111 0.05902770057 T3 11/4/1993 10/11/1995 6 0.138 0.08902770057 T4 11/4/1993 12/10/1993 3 0.183 0.13

Source: U.S. EPA, 2013. 
Attachment 5 

April 19, 2013 

Page 5-1 

Attachment 5: Mercury Fish Tissue Calibration Factors 

Table 5-1. Mercury Fish Tissue Calibration Factors for Immediate Receiving Water Model 

Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration Factor Reason for 

Calibration Factor 

[CBI has been 

removed from this 

document] 

461.55 1961.57 1000 

[CBI has been 

removed from this 

document] 

337.40 1433.97 1000 

114.84 488.08 100 

94.74 402.63 100 

61.97 263.39 100 

55.97 237.85 100 

34.13 145.04 100 

31.45 133.68 100 

31.10 132.17 100 

30.55 129.83 100 

27.91 118.61 100 

26.92 114.41 100 

25.13 106.82 100 

16.55 70.35 100 

18.94 80.52 10 

12.36 52.52 10 

12.01 51.05 10 

11.86 50.39 10 

11.50 48.88 10 

11.20 47.60 10 

9.80 41.64 10 

9.62 40.88 10 

8.07 34.31 10 

7.79 33.09 10 

7.01 29.77 10 

6.96 29.60 10 

6.49 27.57 10 

6.14 26.12 10 

6.03 25.61 10 

5.83 24.79 10 

5.72 24.30 10 

5.37 22.84 10 

5.03 21.39 10 

4.87 20.69 10 

4.47 19.00 10 

4.44 18.85 10 

3.59 15.25 10 

3.24 13.75 10 

2.89 12.28 10 

2.64 11.21 10 

2.53 10.74 10 

1.58 6.69 10 
Attachment 5 

April 19, 2013 

Page 5-2 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

2952.83 12549.52 10,000 

[CBI has been 

removed from this 

document] 

2490.10 10582.93 10,000 

7205.97 30625.36 10,000 

6073.33 25811.63 10,000 

6456.31 27439.32 10,000 

2503.90 10641.59 10,000 

1408.02 5984.10 1,000 

1078.53 4583.76 1,000 

1305.48 5548.29 1,000 

1334.74 5672.63 1,000 

1340.96 5699.09 1,000 

1354.85 5758.12 1,000 

1373.94 5839.23 1,000 

1374.86 5843.15 1,000 

1380.64 5867.71 1,000 

1500.11 6375.45 1,000 

1941.19 8250.08 1,000 

1297.09 5512.65 1,000 

1374.25 5840.58 1,000 

1298.18 5517.26 1,000 

1392.80 5919.41 1,000 

1412.26 6002.09 1,000 

1434.31 6095.81 1,000 

1482.07 6298.80 1,000 

1484.80 6310.41 1,000 

1487.40 6321.45 1,000 

1904.50 8094.12 1,000 

1509.83 6416.79 1,000 

1626.53 6912.76 1,000 

1518.86 6455.15 1,000 

1585.90 6740.07 1,000 

1374.92 5843.39 1,000 

1170.82 4975.99 1,000 

710.39 3019.14 1,000 

709.23 3014.22 1,000 

747.14 3175.34 1,000 

841.92 3578.17 1,000 

744.46 3163.95 1,000 

629.14 2673.86 1,000 

741.71 3152.27 1,000 

626.02 2660.59 1,000 

2173.37 9236.84 1,000 

2144.23 9112.97 1,000 

1301.43 5531.09 1,000 

435.22 1849.67 1,000 

2019.04 8580.93 1,000 
Attachment 5 

April 19, 2013 

Page 5-3 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

1309.81 5566.69 1,000 

[CBI has been 

removed from this 

document] 

1062.41 4515.23 1,000 

1208.68 5136.90 1,000 

1297.01 5512.30 1,000 

1478.13 6282.06 1,000 

1169.32 4969.62 1,000 

1209.10 5138.66 1,000 

1212.13 5151.56 1,000 

1254.98 5333.67 1,000 

1261.62 5361.90 1,000 

1282.98 5452.68 1,000 

2173.37 9236.84 1,000 

253.81 1078.68 1,000 

364.78 1550.32 1,000 

309.89 1317.03 1,000 

653.36 2776.78 1,000 

308.02 1309.08 1,000 

378.79 1609.85 1,000 

309.56 1315.61 1,000 

367.36 1561.29 1,000 

364.78 1550.32 1,000 

370.25 1573.57 1,000 

651.96 2770.84 1,000 

1575.91 6697.61 1,000 

374.22 1590.42 1,000 

545.25 2317.30 1,000 

374.33 1590.88 1,000 

374.22 1590.42 1,000 

295.05 1253.96 1,000 

374.21 1590.38 1,000 

295.05 1253.96 1,000 

282.57 1200.93 1,000 

652.92 2774.92 1,000 

823.36 3499.28 1,000 

737.27 3133.41 1,000 

2021.33 8590.67 1,000 

2008.56 8536.37 1,000 

378.79 1609.85 1,000 

1054.50 4481.62 1,000 

1058.83 4500.03 1,000 

274.26 1165.61 1,000 

586.45 2492.43 1,000 

374.21 1590.38 1,000 

1075.04 4568.93 1,000 

1075.04 4568.93 1,000 

1077.09 4577.64 1,000 
Attachment 5 

April 19, 2013 

Page 5-4 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

765.59 3253.77 1,000 

[CBI has been 

removed from this 

document] 

800.88 3403.75 1,000 

1087.39 4621.41 1,000 

1074.80 4567.91 1,000 

308.02 1309.08 1,000 

765.62 3253.90 1,000 

662.99 2817.71 1,000 

921.23 3915.22 1,000 

879.51 3737.92 1,000 

749.76 3186.49 1,000 

738.07 3136.80 1,000 

1531.50 6508.89 1,000 

737.31 3133.58 1,000 

703.32 2989.11 1,000 

566.06 2405.74 1,000 

550.19 2338.31 1,000 

1531.89 6510.54 1,000 

1999.44 8497.63 1,000 

960.72 4083.07 1,000 

520.19 2210.82 1,000 

924.64 3929.73 1,000 

809.43 3440.08 1,000 

1188.30 5050.28 1,000 

903.43 3839.57 1,000 

903.43 3839.57 1,000 

874.44 3716.39 1,000 

783.41 3329.49 1,000 

904.69 3844.91 1,000 

1759.57 7478.18 1,000 

677.94 2881.25 1,000 

1731.02 7356.84 1,000 

274.26 1165.61 1,000 

274.09 1164.89 1,000 

702.44 2985.36 1,000 

504.61 2144.60 1,000 

25.16 106.92 100 

91.41 388.49 100 

100.76 428.24 100 

103.27 438.91 100 

112.83 479.51 100 

23.89 101.52 100 

124.11 527.46 100 

28.00 119.02 100 

124.10 527.44 100 

53.23 226.23 100 

136.95 582.03 100 
Attachment 5 

April 19, 2013 

Page 5-5 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

138.54 588.79 100 

[CBI has been 

removed from this 

document] 

26.50 112.63 100 

90.66 385.31 100 

43.12 183.25 100 

41.05 174.45 100 

24.44 103.88 100 

23.97 101.87 100 

43.66 185.56 100 

34.79 147.87 100 

25.28 107.44 100 

24.25 103.05 100 

26.12 110.99 100 

26.20 111.34 100 

26.83 114.01 100 

26.85 114.09 100 

26.37 112.09 100 

26.36 112.01 100 

40.99 174.21 100 

30.64 130.21 100 

30.68 130.39 100 

59.30 252.02 100 

33.38 141.86 100 

69.22 294.20 100 

35.84 152.32 100 

39.66 168.57 100 

35.99 152.95 100 

40.01 170.06 100 

39.66 168.57 100 

41.98 178.40 100 

42.41 180.26 100 

26.94 114.48 100 

56.68 240.89 100 

145.95 620.28 100 

60.87 258.68 100 

62.10 263.95 100 

31.31 133.09 100 

41.24 175.27 100 

60.19 255.79 100 

24.87 105.71 100 

26.05 110.73 100 

26.78 113.80 100 

29.96 127.33 100 

30.82 131.00 100 

31.94 135.73 100 

182.20 774.35 100 

99.69 423.69 100 
Attachment 5 

April 19, 2013 

Page 5-6 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

26.89 114.29 100 

[CBI has been 

removed from this 

document] 

26.77 113.77 100 

27.18 115.53 100 

70.69 300.42 100 

27.34 116.20 100 

93.89 399.03 100 

41.24 175.27 100 

42.36 180.05 100 

93.85 398.87 100 

44.04 187.18 100 

42.36 180.05 100 

26.31 111.84 100 

26.31 111.84 100 

182.20 774.35 100 

38.35 163.00 100 

27.77 118.04 100 

25.87 109.95 100 

32.23 137.00 100 

177.44 754.11 100 

34.78 147.82 100 

26.08 110.86 100 

67.11 285.20 100 

26.20 111.36 100 

175.01 743.78 100 

26.82 113.96 100 

138.95 590.55 100 

29.46 125.21 100 

38.31 162.82 100 

28.80 122.42 100 

28.72 122.08 100 

25.52 108.47 100 

28.53 121.26 100 

28.57 121.42 100 

25.23 107.21 100 

28.03 119.11 100 

25.71 109.28 100 

27.70 117.70 100 

60.75 258.18 100 

129.38 549.88 100 

23.58 100.22 100 

32.86 139.66 100 

48.44 205.89 100 

33.35 141.73 100 

87.94 373.77 100 

24.29 103.22 100 

87.95 373.77 100 
Attachment 5 

April 19, 2013 

Page 5-7 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

82.87 352.18 100 

[CBI has been 

removed from this 

document] 

91.79 390.13 100 

93.60 397.79 100 

141.40 600.94 100 

129.38 549.88 100 

141.57 601.67 100 

103.72 440.79 100 

31.85 135.35 100 

39.97 169.88 100 

49.69 211.18 100 

41.00 174.25 100 

26.81 113.93 100 

33.34 141.69 100 

54.34 230.95 100 

32.35 137.47 100 

52.00 221.01 100 

45.53 193.49 100 

31.44 133.61 100 

82.48 350.52 100 

82.87 352.18 100 

72.10 306.42 100 

71.27 302.90 100 

24.04 102.15 100 

53.21 226.13 100 

97.74 415.38 100 

52.45 222.92 100 

123.17 523.49 100 

123.17 523.46 100 

129.82 551.73 100 

157.16 667.91 100 

42.19 179.29 100 

157.16 667.91 100 

122.91 522.39 100 

175.03 743.87 100 

158.23 672.47 100 

162.44 690.39 100 

70.74 300.63 100 

85.86 364.90 100 

192.88 819.73 100 

129.82 551.71 100 

42.53 180.77 100 

45.15 191.89 100 

51.86 220.42 100 

54.16 230.17 100 

55.45 235.68 100 

176.70 750.99 100 
Attachment 5 

April 19, 2013 

Page 5-8 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

42.34 179.96 100 

[CBI has been 

removed from this 

document] 

126.64 538.20 100 

42.34 179.96 100 

124.58 529.47 100 

51.50 218.86 100 

52.57 223.40 100 

112.74 479.14 100 

115.48 490.78 100 

119.44 507.64 100 

49.80 211.67 100 

147.78 628.05 100 

37.10 157.68 100 

43.16 183.44 100 

43.12 183.25 100 

23.94 101.73 100 

29.02 123.32 100 

14.26 60.59 100 

29.02 123.32 100 

52.05 221.21 100 

29.02 123.32 100 

38.98 165.68 100 

29.02 123.34 100 

23.61 100.35 100 

74.25 315.58 100 

59.29 251.99 100 

3.34 14.21 10 

2.44 10.39 10 

2.46 10.43 10 

3.44 14.63 10 

2.43 10.34 10 

2.89 12.27 10 

3.00 12.74 10 

3.00 12.74 10 

3.00 12.74 10 

3.00 12.74 10 

2.40 10.19 10 

3.20 13.61 10 

7.42 31.51 10 

3.32 14.09 10 

3.21 13.65 10 

2.37 10.09 10 

3.46 14.72 10 

2.95 12.54 10 

2.38 10.10 10 

3.00 12.74 10 

3.08 13.11 10 
Attachment 5 

April 19, 2013 

Page 5-9 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

19.15 81.39 10 

[CBI has been 

removed from this 

document] 

2.97 12.63 10 

2.42 10.30 10 

3.08 13.11 10 

2.87 12.21 10 

3.19 13.57 10 

7.39 31.43 10 

7.37 31.33 10 

7.40 31.44 10 

7.39 31.41 10 

2.98 12.65 10 

3.16 13.41 10 

3.20 13.61 10 

3.20 13.59 10 

2.92 12.40 10 

7.41 31.47 10 

7.41 31.47 10 

7.41 31.50 10 

3.31 14.05 10 

3.13 13.29 10 

3.09 13.11 10 

2.97 12.63 10 

7.01 29.81 10 

2.87 12.19 10 

3.36 14.27 10 

3.05 12.95 10 

3.35 14.24 10 

3.48 14.80 10 

6.75 28.68 10 

7.38 31.36 10 

12.23 51.98 10 

7.38 31.38 10 

7.02 29.82 10 

7.02 29.84 10 

7.38 31.36 10 

7.37 31.33 10 

7.03 29.86 10 

2.95 12.53 10 

6.75 28.68 10 

8.51 36.16 10 

11.39 48.40 10 

8.27 35.13 10 

8.27 35.13 10 

6.30 26.79 10 

10.04 42.68 10 

9.05 38.47 10 
Attachment 5 

April 19, 2013 

Page 5-10 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

10.10 42.92 10 

[CBI has been 

removed from this 

document] 

11.13 47.31 10 

6.50 27.62 10 

8.79 37.34 10 

12.17 51.73 10 

8.69 36.91 10 

16.50 70.11 10 

8.27 35.13 10 

7.50 31.86 10 

8.22 34.93 10 

10.11 42.97 10 

11.13 47.29 10 

11.15 47.38 10 

11.15 47.38 10 

11.30 48.01 10 

11.20 47.60 10 

21.14 89.87 10 

10.49 44.57 10 

4.00 17.00 10 

6.26 26.62 10 

5.85 24.88 10 

5.30 22.54 10 

6.97 29.62 10 

11.89 50.54 10 

4.77 20.28 10 

4.77 20.29 10 

2.98 12.68 10 

3.23 13.73 10 

3.31 14.08 10 

8.27 35.13 10 

3.85 16.35 10 

11.30 48.02 10 

4.13 17.56 10 

6.06 25.74 10 

10.43 44.34 10 

8.14 34.58 10 

9.63 40.91 10 

10.44 44.36 10 

11.97 50.87 10 

15.29 64.97 10 

15.95 67.78 10 

17.05 72.48 10 

3.46 14.69 10 

19.34 82.21 10 

11.30 48.02 10 

6.38 27.12 10 
Attachment 5 

April 19, 2013 

Page 5-11 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

6.38 27.12 10 

[CBI has been 

removed from this 

document] 

6.30 26.79 10 

6.68 28.41 10 

9.15 38.91 10 

14.13 60.05 10 

19.88 84.48 10 

7.42 31.53 10 

22.31 94.80 10 

6.35 27.01 10 

7.42 31.52 10 

6.39 27.16 10 

14.84 63.06 10 

5.51 23.43 10 

7.21 30.63 10 

6.77 28.76 10 

2.85 12.11 10 

2.87 12.18 10 

2.86 12.17 10 

2.89 12.27 10 

2.92 12.39 10 

2.89 12.30 10 

23.39 99.40 10 

8.14 34.60 10 

9.44 40.13 10 

11.30 48.02 10 

11.30 48.02 10 

11.30 48.02 10 

11.30 48.02 10 

11.30 48.02 10 

11.30 48.03 10 

8.25 35.07 10 

8.10 34.43 10 

8.10 34.43 10 

6.38 27.12 10 

8.07 34.29 10 

2.85 12.11 10 

5.89 25.04 10 

6.19 26.32 10 

8.15 34.65 10 

8.14 34.60 10 

6.19 26.32 10 

6.60 28.06 10 

6.55 27.85 10 

6.46 27.46 10 

6.44 27.38 10 

6.42 27.28 10 
Attachment 5 

April 19, 2013 

Page 5-12 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

8.10 34.43 10 

[CBI has been 

removed from this 

document] 

3.28 13.95 10 

13.87 58.93 10 

3.18 13.53 10 

3.18 13.52 10 

3.18 13.50 10 

3.19 13.54 10 

3.18 13.50 10 

3.18 13.50 10 

3.18 13.50 10 

3.20 13.58 10 

3.18 13.52 10 

3.18 13.52 10 

3.20 13.61 10 

3.18 13.50 10 

3.43 14.58 10 

3.18 13.50 10 

3.29 13.98 10 

3.21 13.65 10 

3.24 13.76 10 

3.24 13.77 10 

3.24 13.77 10 

3.24 13.77 10 

3.24 13.77 10 

3.25 13.80 10 

3.25 13.83 10 

3.25 13.83 10 

3.26 13.86 10 

4.89 20.79 10 

4.88 20.72 10 

3.26 13.87 10 

3.17 13.47 10 

6.62 28.12 10 

6.57 27.90 10 

6.54 27.79 10 

4.38 18.60 10 

4.27 18.15 10 

4.10 17.44 10 

4.09 17.39 10 

3.42 14.52 10 

3.44 14.62 10 

3.43 14.59 10 

3.42 14.55 10 

3.32 14.12 10 

3.18 13.53 10 

3.16 13.45 10 
Attachment 5 

April 19, 2013 

Page 5-13 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

3.27 13.92 10 

[CBI has been 

removed from this 

document] 

3.17 13.46 10 

3.17 13.47 10 

3.17 13.46 10 

3.17 13.47 10 

3.17 13.49 10 

3.17 13.49 10 

3.17 13.49 10 

3.18 13.49 10 

3.18 13.49 10 

3.18 13.50 10 

3.18 13.52 10 

3.18 13.52 10 

3.18 13.52 10 

3.16 13.44 10 

8.90 37.84 10 

4.95 21.06 10 

17.60 74.80 10 

2.71 11.50 10 

4.97 21.12 10 

14.04 59.69 10 

2.71 11.51 10 

2.69 11.45 10 

2.67 11.35 10 

2.65 11.24 10 

2.64 11.22 10 

2.63 11.17 10 

2.61 11.10 10 

3.27 13.89 10 

8.90 37.84 10 

5.03 21.37 10 

8.90 37.84 10 

0.98 4.15 10 

2.61 11.08 10 

2.66 11.31 10 

2.72 11.56 10 

4.35 18.51 10 

6.87 29.19 10 

2.63 11.19 10 

2.49 10.60 10 

2.49 10.60 10 

2.50 10.61 10 

2.50 10.61 10 

2.50 10.60 10 

2.59 11.03 10 

3.36 14.27 10 
Attachment 5 

April 19, 2013 

Page 5-14 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

6.88 29.26 10 

[CBI has been 

removed from this 

document] 

3.27 13.90 10 

3.28 13.93 10 

3.28 13.95 10 

3.42 14.52 10 

3.42 14.52 10 

3.28 13.95 10 

3.28 13.95 10 

3.40 14.43 10 

3.28 13.95 10 

3.30 14.04 10 

3.37 14.34 10 

3.30 14.02 10 

5.03 21.36 10 

5.06 21.52 10 

3.45 14.66 10 

4.94 21.01 10 

4.93 20.94 10 

4.90 20.82 10 

5.03 21.37 10 

3.36 14.27 10 

5.04 21.41 10 

3.31 14.08 10 

5.07 21.54 10 

2.99 12.73 10 

3.22 13.69 10 

3.31 14.06 10 

3.36 14.27 10 

5.01 21.28 10 

5.04 21.40 10 

16.28 69.18 10 

14.19 60.29 10 

14.17 60.22 10 

14.19 60.30 10 

14.17 60.21 10 

14.19 60.32 10 

14.20 60.33 10 

14.22 60.41 10 

16.21 68.90 10 

16.21 68.91 10 

16.21 68.91 10 

16.23 69.00 10 

16.26 69.09 10 

1.05 4.47 10 

16.27 69.16 10 

14.14 60.12 10 
Attachment 5 

April 19, 2013 

Page 5-15 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

16.28 69.18 10 

[CBI has been 

removed from this 

document] 

16.31 69.31 10 

16.31 69.32 10 

0.44 1.85 10 

2.98 12.68 10 

3.68 15.62 10 

4.08 17.35 10 

2.98 12.69 10 

2.97 12.64 10 

18.65 79.24 10 

18.65 79.24 10 

6.75 28.67 10 

6.71 28.53 10 

16.26 69.09 10 

13.82 58.73 10 

7.49 31.82 10 

11.68 49.65 10 

11.78 50.07 10 

11.93 50.72 10 

7.50 31.87 10 

12.12 51.51 10 

12.16 51.69 10 

12.17 51.71 10 

12.19 51.83 10 

12.23 51.97 10 

13.63 57.91 10 

13.64 57.99 10 

13.69 58.20 10 

14.16 60.19 10 

14.14 60.12 10 

1.67 7.10 10 

14.14 60.10 10 

13.87 58.93 10 

13.81 58.69 10 

13.85 58.86 10 

14.11 59.97 10 

13.89 59.03 10 

13.82 58.73 10 

13.91 59.11 10 

14.10 59.95 10 

14.13 60.05 10 

14.12 60.01 10 

14.11 59.97 10 

14.20 60.34 10 

14.13 60.05 10 

17.19 73.08 10 
Attachment 5 

April 19, 2013 

Page 5-16 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

3.16 13.43 10 

[CBI has been 

removed from this 

document] 

3.16 13.44 10 

3.16 13.45 10 

3.16 13.45 10 

3.16 13.45 10 

3.16 13.44 10 

3.67 15.59 10 

19.79 84.10 10 

11.82 50.26 10 

21.22 90.19 10 

17.25 73.30 10 

21.64 91.95 10 

6.58 27.97 10 

23.01 97.81 10 

3.16 13.41 10 

7.98 33.90 10 

7.97 33.85 10 

7.69 32.70 10 

7.64 32.46 10 

7.32 31.12 10 

7.27 30.88 10 

8.11 34.46 10 

17.16 72.93 10 

8.12 34.49 10 

7.26 30.86 10 

7.26 30.86 10 

7.26 30.86 10 

7.43 31.58 10 

22.01 93.53 10 

4.88 20.74 10 

6.43 27.35 10 

13.69 58.18 10 

6.26 26.62 10 

13.63 57.94 10 

13.61 57.82 10 

13.81 58.67 10 

5.18 22.04 10 

4.92 20.90 10 

4.62 19.64 10 

4.48 19.04 10 

4.48 19.03 10 

4.01 17.06 10 

15.12 64.25 10 

3.16 13.42 10 

18.56 78.86 10 

6.74 28.63 10 
Attachment 5 

April 19, 2013 

Page 5-17 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

3.15 13.39 10 

[CBI has been 

removed from this 

document] 

3.15 13.39 10 

3.15 13.39 10 

3.14 13.34 10 

20.13 85.57 10 

17.39 73.91 10 

6.91 29.35 10 

6.18 26.26 10 

0.36 1.53 10 

6.18 26.26 10 

13.84 58.81 10 

4.88 20.74 10 

3.16 13.42 10 

0.66 2.80 10 

6.53 27.75 10 

7.78 33.06 10 

2.65 11.24 10 

6.55 27.84 10 

6.55 27.84 10 

6.54 27.78 10 

4.95 21.05 10 

6.53 27.77 10 

5.79 24.62 10 

6.45 27.40 10 

6.44 27.38 10 

6.20 26.37 10 

6.30 26.78 10 

5.01 21.28 10 

4.65 19.76 10 

6.53 27.77 10 

2.88 12.26 10 

7.78 33.05 10 

7.78 33.05 10 

3.06 13.01 10 

3.06 13.01 10 

3.06 13.01 10 

3.06 12.99 10 

7.78 33.05 10 

3.05 12.95 10 

7.78 33.05 10 

2.65 11.26 10 

2.65 11.26 10 

2.62 11.13 10 

7.78 33.05 10 

3.06 13.02 10 

6.53 27.73 10 
Attachment 5 

April 19, 2013 

Page 5-18 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

3.05 12.97 10 

[CBI has been 

removed from this 

document] 

9.80 41.67 10 

6.22 26.45 10 

3.47 14.76 10 

3.43 14.57 10 

2.94 12.52 10 

2.47 10.51 10 

5.00 21.26 10 

9.86 41.92 10 

6.22 26.44 10 

9.75 41.44 10 

9.63 40.95 10 

9.60 40.81 10 

9.17 38.98 10 

8.99 38.21 10 

20.14 85.60 10 

2.95 12.52 10 

5.11 21.73 10 

6.53 27.75 10 

6.53 27.73 10 

5.01 21.28 10 

5.00 21.27 10 

5.01 21.31 10 

4.95 21.05 10 

4.81 20.46 10 

5.72 24.32 10 

4.83 20.51 10 

0.32 1.36 10 

5.08 21.59 10 

5.11 21.73 10 

5.14 21.82 10 

18.22 77.42 10 

7.78 33.06 10 

0.63 2.68 10 

5.34 22.69 10 

21.69 92.19 10 

20.66 87.81 10 

20.39 86.67 10 

5.63 23.91 10 

5.61 23.84 10 

7.78 33.06 10 

5.34 22.70 10 

3.69 15.66 10 

5.29 22.50 10 

5.23 22.25 10 

5.22 22.20 10 
Attachment 5 

April 19, 2013 

Page 5-19 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

5.19 22.04 10 

[CBI has been 

removed from this 

document] 

4.66 19.78 10 

4.64 19.72 10 

5.57 23.69 10 

2.36 10.05 10 

3.78 16.05 10 

3.75 15.93 10 

3.70 15.71 10 

3.69 15.69 10 

2.37 10.07 10 

2.36 10.04 10 

3.76 15.96 10 

2.36 10.03 10 

3.76 15.96 10 

2.36 10.02 10 

2.36 10.01 10 

3.80 16.17 10 

2.37 10.05 10 

2.37 10.07 10 

4.55 19.35 10 

2.36 10.04 10 

7.78 33.05 10 

4.58 19.48 10 

9.53 40.49 10 

4.64 19.73 10 

4.09 17.40 10 

4.68 19.88 10 

8.98 38.15 10 

9.15 38.87 10 

4.05 17.23 10 

9.10 38.69 10 

7.78 33.05 10 

7.78 33.05 10 

7.78 33.05 10 

3.06 13.02 10 

7.78 33.08 10 

3.94 16.77 10 

4.67 19.85 10 

2.41 10.24 10 

7.78 33.06 10 

5.53 23.51 10 

5.29 22.50 10 

5.34 22.69 10 

4.55 19.35 10 

3.03 12.88 10 

9.37 39.84 10 
Attachment 5 

April 19, 2013 

Page 5-20 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

2.61 11.09 10 

[CBI has been 

removed from this 

document] 

4.57 19.41 10 

6.78 28.83 10 

1.28 5.45 10 

0.47 1.99 10 

0.46 1.94 10 

8.90 37.81 10 

8.90 37.84 10 

3.00 12.74 10 

10.84 46.08 10 

2.88 12.25 10 

3.19 13.57 10 

3.06 13.02 10 

3.22 13.68 10 

3.19 13.57 10 

0.33 1.42 10 

2.86 12.15 10 

2.51 10.67 10 

19.26 81.84 10 

3.95 16.79 10 

22.42 95.30 10 

20.17 85.72 10 

20.14 85.60 10 

4.86 20.66 10 

2.61 11.09 10 

3.78 16.07 10 

3.85 16.37 10 

3.83 16.30 10 

3.54 15.06 10 

3.54 15.06 10 

3.54 15.06 10 

3.53 15.01 10 

2.85 12.12 10 

3.51 14.92 10 

2.51 10.69 10 

3.65 15.49 10 

3.61 15.36 10 

3.59 15.26 10 

3.57 15.19 10 

3.55 15.08 10 

3.97 16.87 10 

3.53 14.99 10 

18.41 78.26 10 

22.63 96.17 10 

22.01 93.55 10 

21.97 93.39 10 
Attachment 5 

April 19, 2013 

Page 5-21 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

21.97 93.39 10 

[CBI has been 

removed from this 

document] 

21.08 89.58 10 

20.17 85.72 10 

20.25 86.06 10 

2.49 10.57 10 

18.20 77.34 10 

18.17 77.23 10 

18.17 77.23 10 

18.09 76.90 10 

5.30 22.54 10 

3.99 16.97 10 

20.53 87.26 10 

5.22 22.20 10 

6.37 27.08 10 

6.66 28.29 10 

6.66 28.29 10 

14.00 59.49 10 

14.11 59.97 10 

13.99 59.47 10 

23.00 97.74 10 

5.35 22.74 10 

2.53 10.75 10 

6.26 26.61 10 

5.22 22.20 10 

3.73 15.85 10 

2.83 12.04 10 

2.86 12.14 10 

3.20 13.60 10 

5.22 22.20 10 

3.16 13.42 10 

3.37 14.33 10 

3.35 14.23 10 

3.32 14.09 10 

3.28 13.93 10 

3.22 13.67 10 

3.87 16.44 10 

3.16 13.44 10 

3.43 14.60 10 

3.12 13.25 10 

3.07 13.05 10 

3.06 13.01 10 

3.06 13.01 10 

3.06 13.01 10 

3.06 13.01 10 

3.19 13.57 10 

3.73 15.85 10 
Attachment 5 

April 19, 2013 

Page 5-22 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

3.94 16.76 10 

[CBI has been 

removed from this 

document] 

7.80 33.13 10 

7.78 33.06 10 

4.71 20.01 10 

4.09 17.38 10 

4.12 17.51 10 

3.40 14.45 10 

3.98 16.92 10 

3.43 14.56 10 

3.68 15.65 10 

3.59 15.26 10 

3.48 14.80 10 

3.47 14.76 10 

3.45 14.65 10 

2.92 12.41 10 

4.01 17.04 10 

2.51 10.69 10 

3.00 12.76 10 

3.02 12.86 10 

3.01 12.81 10 

3.01 12.80 10 

3.01 12.77 10 

2.98 12.67 10 

3.04 12.92 10 

2.89 12.27 10 

3.06 13.02 10 

2.51 10.67 10 

3.10 13.17 10 

3.10 13.17 10 

3.14 13.33 10 

3.14 13.33 10 

3.92 16.66 10 

2.97 12.63 10 

2.92 12.41 10 

3.90 16.57 10 

2.91 12.38 10 

2.91 12.35 10 

2.90 12.33 10 

3.23 13.71 10 

3.14 13.33 10 

3.03 12.89 10 

3.08 13.10 10 

2.99 12.71 10 

2.90 12.33 10 

3.22 13.68 10 

3.19 13.54 10 
Attachment 5 

April 19, 2013 

Page 5-23 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

3.14 13.33 10 

[CBI has been 

removed from this 

document] 

3.10 13.16 10 

3.06 13.02 10 

3.12 13.28 10 

7.77 33.03 10 

11.70 49.71 10 

4.27 18.13 10 

3.03 12.87 10 

2.40 10.19 10 

7.66 32.55 10 

4.27 18.16 10 

7.45 31.67 10 

2.36 10.03 10 

7.77 33.02 10 

7.77 33.02 10 

4.31 18.30 10 

4.31 18.30 10 

4.31 18.30 10 

3.80 16.14 10 

7.66 32.55 10 

18.46 78.45 10 

9.32 39.60 10 

20.13 85.57 10 

8.32 35.38 10 

19.25 81.82 10 

19.29 81.96 10 

20.13 85.56 10 

4.19 17.83 10 

14.21 60.38 10 

2.41 10.22 10 

14.02 59.57 10 

14.18 60.26 10 

14.20 60.36 10 

2.47 10.51 10 

2.45 10.40 10 

4.06 17.27 10 

20.24 86.00 10 

13.54 57.54 10 

2.80 11.90 10 

2.80 11.88 10 

11.69 49.69 10 

11.68 49.63 10 

15.70 66.74 10 

4.28 18.19 10 

6.50 27.61 10 

2.45 10.42 10 
Attachment 5 

April 19, 2013 

Page 5-24 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

4.64 19.71 10 

[CBI has been 

removed from this 

document] 

5.17 21.95 10 

4.64 19.71 10 

22.51 95.68 10 

17.35 73.76 10 

17.35 73.75 10 

6.57 27.91 10 

2.48 10.53 10 

4.02 17.09 10 

3.91 16.61 10 

3.60 15.29 10 

3.73 15.86 10 

3.70 15.73 10 

3.70 15.73 10 

2.80 11.89 10 

2.49 10.58 10 

2.45 10.42 10 

2.47 10.52 10 

2.47 10.51 10 

2.47 10.51 10 

2.47 10.51 10 

2.45 10.43 10 

12.82 54.47 10 

2.49 10.57 10 

0.88 3.75 10 

8.91 37.86 10 

8.70 36.99 10 

8.42 35.80 10 

8.42 35.80 10 

8.42 35.78 10 

12.97 55.14 10 

0.89 3.78 10 

11.01 46.78 10 

2.46 10.48 10 

2.54 10.79 10 

2.48 10.56 10 

2.54 10.80 10 

2.55 10.85 10 

2.57 10.91 10 

4.62 19.65 10 

13.10 55.66 10 

3.55 15.11 10 

3.55 15.10 10 

9.96 42.35 10 

8.40 35.71 10 

4.61 19.59 10 
Attachment 5 

April 19, 2013 

Page 5-25 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

17.84 75.84 10 

[CBI has been 

removed from this 

document] 

9.20 39.10 10 

13.22 56.20 10 

9.62 40.87 10 

12.99 55.20 10 

12.53 53.26 10 

11.99 50.94 10 

11.85 50.34 10 

11.08 47.10 10 

2.60 11.06 10 

17.46 74.21 10 

18.69 79.41 10 

2.57 10.93 10 

16.54 70.30 10 

17.21 73.12 10 

11.30 48.01 10 

18.50 78.61 10 

18.56 78.90 10 

16.10 68.44 10 

18.60 79.04 10 

16.25 69.07 10 

11.81 50.19 10 

19.02 80.83 10 

11.96 50.83 10 

19.05 80.96 10 

12.30 52.27 10 

9.91 42.11 10 

11.48 48.81 10 

14.61 62.08 10 

19.14 81.34 10 

14.24 60.53 10 

14.28 60.69 10 

14.36 61.05 10 

14.43 61.33 10 

14.45 61.40 10 

16.38 69.63 10 

14.75 62.68 10 

2.98 12.67 10 

14.80 62.88 10 

14.88 63.23 10 

15.96 67.84 10 

16.19 68.81 10 

16.01 68.06 10 

16.07 68.32 10 

14.52 61.72 10 

5.36 22.76 10 
Attachment 5 

April 19, 2013 

Page 5-26 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

6.36 27.02 10 

[CBI has been 

removed from this 

document] 

6.36 27.02 10 

6.33 26.90 10 

6.27 26.64 10 

6.27 26.64 10 

3.58 15.24 10 

6.24 26.54 10 

6.51 27.69 10 

5.36 22.76 10 

5.22 22.19 10 

5.36 22.76 10 

5.22 22.17 10 

6.40 27.21 10 

6.39 27.16 10 

6.26 26.62 10 

9.76 41.49 10 

15.40 65.44 10 

3.66 15.56 10 

3.67 15.61 10 

3.54 15.04 10 

3.54 15.03 10 

3.53 14.99 10 

6.48 27.55 10 

2.42 10.30 10 

6.49 27.60 10 

23.36 99.29 10 

23.29 98.99 10 

6.54 27.82 10 

6.54 27.80 10 

6.53 27.75 10 

5.19 22.04 10 

3.55 15.11 10 

3.91 16.62 10 

5.22 22.17 10 

4.06 17.23 10 

3.97 16.89 10 

3.94 16.75 10 

3.94 16.73 10 

3.91 16.62 10 

4.10 17.42 10 

3.92 16.66 10 

4.11 17.48 10 

3.84 16.30 10 

3.83 16.30 10 

3.82 16.23 10 

3.83 16.28 10 
Attachment 5 

April 19, 2013 

Page 5-27 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

3.82 16.25 10 

[CBI has been 

removed from this 

document] 

3.70 15.71 10 

3.93 16.69 10 

4.93 20.97 10 

3.58 15.24 10 

5.18 22.03 10 

5.17 21.97 10 

5.13 21.81 10 

5.16 21.91 10 

5.05 21.48 10 

4.09 17.40 10 

5.04 21.43 10 

5.19 22.06 10 

4.92 20.93 10 

4.92 20.89 10 

4.92 20.91 10 

4.15 17.64 10 

4.15 17.63 10 

4.11 17.48 10 

5.05 21.45 10 

2.57 10.94 10 

2.57 10.94 10 

2.59 11.03 10 

2.51 10.66 10 

2.38 10.10 10 

2.50 10.64 10 

2.23 9.47 10 

2.48 10.55 10 

2.79 11.85 10 

2.52 10.69 10 

2.51 10.66 10 

21.97 93.38 10 

21.97 93.37 10 

21.95 93.27 10 

21.94 93.25 10 

2.49 10.58 10 

6.91 29.39 10 

3.82 16.23 10 

8.78 37.32 10 

7.70 32.70 10 

5.39 22.89 10 

4.58 19.46 10 

22.49 95.56 10 

2.91 12.39 10 

4.61 19.58 10 

2.95 12.54 10 
Attachment 5 

April 19, 2013 

Page 5-28 

Table 5-2. Mercury Fish Tissue Calibration Factors for Downstream Receiving Water 

Model Results 

COMID 

Unadjusted 

Modeled T3 Fish 

Concentration 

(mg/kg) 

Unadjusted 

Modeled T4 Fish 

Concentration 

(mg/kg) 

Calibration 

Factor 

Reason for 

Calibration Factor 

[CBI has been removed 

from this document] 

2.45 10.42 10 

[CBI has been 

removed from this 

document] 

2.79 11.87 10 

5.51 23.42 10 

2.79 11.85 10 

2.79 11.85 10 

21.85 92.84 10 

6.55 27.82 10 

3.82 16.23 10 

21.93 93.21 10 

2.99 12.73 10 

2.97 12.63 10 

2.97 12.63 10 

2.97 12.63 10 

2.97 12.63 10 

3.02 12.84 10 

3.79 16.12 10 

3.03 12.89 10 

3.79 16.12 10 

3.91 16.62 10 

3.54 15.04 10 

3.56 15.11 10 

3.59 15.24 10 

3.79 16.11 10 

3.58 15.23 10 

17.43 74.08 10 

12.04 51.17 10 

21.49 91.33 10 

6.24 26.52 10 

21.08 89.59 10 

21.11 89.73 10 

17.43 74.08 10 

3.01 12.79 10 

18.09 76.90 10 

21.91 93.13 10 

22.51 95.68 10 

23.19 98.54 10 

0.87 3.68 10 

3.13 13.31 10 

3.12 13.28 10 

3.04 12.93 10 

15.44 65.61 10 

Source: U.S. EPA, 2012.