## 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 us ed 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 methodol ogy 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 Propos ed Effluent Limitations Guidelines and Standards for the Steam Electric Power Generating Point Source Category (Benefits and Cost Analysis) (DCN SE03172). This memorandum presents the valid ation measures ERG performed for receiving water concentrations used to estimate fish tissue concentrations, the validation methodology used to evalua te the fish tissue concentrati ons calculated by the wildlife model, and the calibration methodolo gy used to set calibration factors for the mercury fish tissue concentrations and subsequent human exposure do ses from fish consumption (which were then used in the Benefits and Cost Analysis).

1. V ALIDATION OF 

### R ECEIVING 

### W ATER 

### C ONCENTRATIONS



### ERG used a steady state equilibrium-partitio ning 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 dow nstream 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 re sults from RSEI as the “downstream receiving water model.”

ERG identified a limited amount of site-speci fic data in the liter ature to validate the receiving water concentrations estimated in the two models. Table 1 presents measured pollutant

1 ERG defined the i mmediate receiving water as the initial stream se gment 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 st eam 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 tw o sites modeled in the EA. ERG compared the site-specific modeled receiving wa ter concentrations against the measured values and determined that the concentrations calculat ed 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 r unoff) and neither model accounts for natural background concentrations that may be present w ithin the water body. Attachment 1 presents the baseline modeled concentrations from the im mediate and downstream receiving water models compared with the site-specific measured values presented in Table 1.

Table 1. Site-Specific Measured Receiving Wat er 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. Ra nges 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-s pecific measured data for comparison, ERG compared modeled receiving water concentrations to measured r eceiving water concentrat ions downstream from steam electric discharges reported in the l iterature for the following three sites:

 Measured surface water concentrations in Belews Lake immediately following the discharge of combustion waste wate r 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 Li ttle 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 abov e literature sources a nd 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 segm ents 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 c oncentrations identified for comparison.

For the COMIDs that exceeded the surrogate surface water concentrations, ERG assessed the order of magnitude by which the modeled co ncentrations exceeded the measured values. ERG used the measured data from Belews La ke as the order of magnitude benchmark for comparison because Belews Lake reported the lo west measured surface water concentrations among the three surrogate sites. Of those CO MIDs whose modeled arsenic concentrations exceeded the concentrations measured at Belews Lake, more than half were within the same order of magnitude as the measured concentrat ion (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 im mediate 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 electri c discharges evaluated in the EA (ERG, 2013a). b- The RSEI model (i.e., downstream receiving water analys is) 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 stre ams evaluated in the EA. ERG anticipates that the modeled surface water concen trations in these low-flow surface waters would be roughly equivalent to the pollutant concentr ations observed in combustion residual surface impoundments. As an assessment of reasonabi lity, ERG compared the maximum modeled receiving water concentrations to the maximum m easured 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 wate r model was 2.54 mg/L. Both concentrations are within the same order of magnitude as the total selenium c oncentration of 2.70 mg/L measured in the combustion residual surface impoundment discha rging into Martin Cr eek Reservoir (Garrett

### Memorandum April 19, 2013 Page 4

and Inman, 1984). The maximum total arsenic con centration in the imme diate receiving water model was 2.22 mg/L and the maximum concentra tion 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 e ffluent 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 tota l 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 wa s unable to perform a similar comparison analysis for those two pollutants. Ho wever, the results of the comparison analysis between modeled and measured concentrations described above sugge sts that the modeled receiving water concentrations in the immedi ate and downstream surface waters are reasonable for estimating fish tissue concentrations in the wildlife model:

 Modeled receiving water concentrations were le ss than site-specific values available for comparison (Table 1);

 The majority of receiving water concentrati ons (i.e., greater than 90 percent) were less than the measured surrogate surface water concentrations availa ble for comparison;

 Greater than 40 percent of modeled receiv ing water concentrations that exceeded the surrogate values were within the same order of magnitude as the su rrogate values; and

 Modeled receiving water concentrations that were greater than an order of magnitude above the surrogate value were surface wate rs with low flow (<69 cfs), which would offer minimal dilution of the discharge. Thes e outlier values were within an order of magnitude of measured pollutant concen trations in combustion residual surface impoundments.

Based on these results, ERG determined that th e modeled receiving water concentrations were reasonable and used the receiving water model resu lts to estimate fish tissue concentrations in the wildlife model.

### Memorandum April 19, 2013 Page 5

2. V ALIDATION OF 

### F ISH 

### T ISSUE 

### C ONCENTRATIONS



### 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 measur ed 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 summari zes the site-specific fish tissue sampling data available for comparison with model results in lakes.

ERG created a geographical information sy stems (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 identifie d 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 merc ury fish concentration data from the NLFA fish tissue database; and lin ked 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 incl uded 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 maximu m measured fish tissue concentration for that site and trophic level. ER G 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 select ed 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 limite d 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 reservoi rs 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 lake s 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/fi shshellfish/fishadvisories/index.cfm

.

### Memorandum April 19, 2013 Page 6

 Many of the fish tissue samples were colle cted 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 poten tial 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 th e modeled fish tissue concentrations with no site-specific data identified for comparison, ER G 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 c ontrast to the site-specific comparison where there are potenti al explanations for the discrepancy between measured and modeled concentrations, ERG selected a same orde r of magnitude threshol d 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-specifi c and maximum measured fish tissue concentrations (Tables 2 and 3), ERG determin ed that the arsenic and lead fish tissue concentrations calculated in th e immediate and downstream mode ls 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 th e 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. M ERCURY 

### C ALIBRATION 

### F ACTORS



### The wildlife model calculates fish tissue concentrations by multiplying modeled receiving water concentrations by pollu tant specific bioconcentration factors. 7 

### Bioconcentration factors are a simplified methodology for estimating fish tissue concentrations from surface water concentrations with some inherent assump tions and uncertainties associated with the methodology. Bioconcentration factors do not fully account for the complexity of biogeochemical reactions that can occur within an aquatic envi ronment 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 bioaccumulation 8 

### of mercury within the aquatic foodw eb as methlymercury is more easily accumulated than other forms of mercury. Bacter ia found in anaerobic conditions, such as those that may be present in sediments found on the bottom of combusti on residuals surface impoundments or in river sediment s, convert mercury to methylmercury through a process called methylation (WHO, 1976). Micr obial methylation rates incr ease in acidic and anoxic environments with high concentrations of orga nic matter. The equations used in the wildlife model assume that 15 percent of total merc ury 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 co uld 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 c oncentrations. High selenium concentrations are frequently associated with surface waters imp acted by combustion waste water discharges and, therefore, the elevated selenium concentrations may inhibit mercury accu mulation in fish (WHO, 1976). For these reasons, the bioaccumulation fa ctor 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 ti ssue concentrations a nd 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 fo llowing criteria to establish calibration factors for mercury fish tissue concentra tions in the identified COMIDs:

 If modeled mercury fish tissue concentr ations exceed the maximum concentration measured at the site, ERG selected a calibrati on 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 exce eded 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 mode led 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 me rcury fish tissue concentration for lakes was higher (29 mg/kg), ERG selected the maximum mercur y 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 th e majority of the site-specific data available for lakes that receive steam electric discharges (Table 3-3 in Attachment 3) we re 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 COMI Ds included in th e 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. Th e remaining calibration factors were adjusted based on the 10 mg/kg cap established for all mode led 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 c oncentrations in the human health effects analyses presented in the Be nefits 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. I MPACT OF 

### A DJUSTED 

### M ERCURY 

### F ISH 

### T ISSUE 

### C ONCENTRATIONS ON 

### EA R ESULTS



### The wildlife and human health analyses pres ented in Sections 5 and 6 of the EA Report are threshold-based analyses th at 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. Th e 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 grea t 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 fr om fish consumption will continue to exceed the benchmark values even if the calibration factors were taken in to consideration. Although many of the unadjusted fish tissue concen tration 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 r eceiving waters with fish that may pose a risk to wildlife and human health, ERG used the unadjus ted 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 h ealth benchmark values using the unadjusted and adjusted model values. ERG determined that merc ury 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 reduc e the number of COMIDs exceeding the mercury reference dose (Rfd) value for non-cancer he alth 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. R EFERENCES



### Baumann, P.C. and R.B. Gillespie, 1986. Selenium Bioaccumulation in Gonads of Largemouth Bass and Bluegill from Three Power Plant Coo ling Reservoirs. Environmental Toxicology and Chemistry, 5: 695–701. DCN SE01846.

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

Crutchfield, J.U., Jr. 2000. Recovery of a Powe r Plant Cooling Reservoir from Selenium Bioaccumulation. Environmental Scie nce & 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 Conf erence 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 Asso c. Fish. Wildl. Agencies, 38: 291–301. DCN SE01885.

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

Reash, R. J., J.H. Van Hansel, and K.V. W ood. 1988. Ecology of a Southern Ohio stream receiving fly ash pond discharge: changes from ac id mine drainage conditions. Archives of Environmental Contamination a nd 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), Environm ental Toxicology and Risk Assessment: Eighth Volume, ASTM STP 1364, American Society fo r Testing and Material s, 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 Orga nization. Environmental Hea lth Criteria 1: Mercury. International Programme on Chemical Safety. Geneva, Switzerland. DCN SE01914.Attachment 1April 19, 2013Page 1-1Attachment 1: Site-specific Modeled Receiving Water Concentration Values Compared to Measured Receiving WaterConcentrationPlant NameCOMIDReceiving WaterNamePollutantBaselineImmediateReceivingWater ModelConcentration(mg/L)BaselineDownstreamReceiving WaterModelConcentration(mg/L)MeasuredSurface WaterConcentration(mg/L)LiteratureSourceRoxboro SteamPlant8696233 Hyco Reservoir Total Selenium 0.00235 0.00258 0.009 - 0.012 Baumann, 1986Roxboro SteamPlant8696233 Hyco Reservoir Total Selenium 0.00235 0.00258 0.0032 Crutchfield, 2000RiverbendSteam Station9755532 Mountain Island Lake Total Arsenic 0.0000329 0.000111 0.01 - 0.05aCharlotte Observer,2010RiverbendSteam Station9755532 Mountain Island Lake Total Zinc 0.0000441 0.000281 0.05 - 0.086bCharlotte Observer,2010a-County staff detected total arsenic 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.

### 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 To tal 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 To tal 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 To tal 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 Tota l 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 Tota l 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 Tota l 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 Tota l 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 Tota l 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 Tota l 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 3April 19, 2013Page 3-1Attachment 3: Summary of Lake-specific Fish Tissue Sampling Data Available for Comparison with Model ResultsTable 3-1. Summary of Lake-specific Arsenic Fish Tissue Concentration DataCOMIDLake NameTrophicLevelSampleDateMinimumSampleDateMaximumNumberofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)Maximum FishTissueConcentration(mg/kg)Source8696233 Hyco Lake T3 1/1/1986 1/1/1988 54 0.207 0.200 0.400 NLFA6445736 Lake Blackshear T3 10/26/1992 12/21/2001 12 0.020 0.020 0.020 NLFA6445736 Lake Blackshear T4 10/26/1992 11/27/2001 12 0.022 0.020 0.040 NLFA6336412 Lake Juliette T3 11/23/1999 11/23/1999 1 8.000 8.000 8.000 NLFA6336412 Lake Juliette T4 9/16/1992 10/18/1999 4 6.005 0.020 8.000 NLFA9755486 Lake Norman T3 1/1/1997 1/1/1997 3 1.000 1.000 1.000 NLFA9755486 Lake Norman T4 1/1/1997 1/1/1997 9 1.000 1.000 1.000 NLFA1943791 Lake Sinclair T3 10/26/1991 11/16/2001 22 0.033 0.020 0.063 NLFA1943791 Lake Sinclair T4 10/26/1991 11/16/2001 22 0.038 0.020 0.103 NLFA8693517 Mayo Reservoir T3 1/1/1986 1/1/1988 15 0.293 0.200 0.400 NLFA8693517 Mayo Reservoir T4 1/1/1986 1/1/1988 8 0.325 0.200 0.400 NLFA9755532 Mountain Island Lake T3 1/1/1997 1/1/1997 3 1.000 1.000 1.000 NLFA9755532 Mountain Island Lake T4 1/1/1997 1/1/1997 5 1.000 1.000 1.000 NLFASource: U.S. EPA, 2013.NLFA- National Listing of Fish Advisories database.Table 3-2. Summary of Lake-specific Lead Fish Tissue Concentration DataCOMIDLake NameTrophicLevelSampleDateMinimumSampleDateMaximumNumberofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)Maximum FishTissueConcentration(mg/kg)Source8696233 Hyco Lake T3 1/1/1986 1/1/1986 27 0.644 0.500 2.000 NLFA6445736 Lake Blackshear T3 10/26/1992 12/21/2001 12 0.875 0.500 1.000 NLFA6445736 Lake Blackshear T4 10/26/1992 11/27/2001 12 0.875 0.500 1.000 NLFA6336412 Lake Juliette T3 11/23/1999 11/23/1999 1 9.000 9.000 9.000 NLFA6336412 Lake Juliette T4 9/16/1992 10/18/1999 4 7.000 1.000 9.000 NLFAAttachment 3April 19, 2013Page 3-2Table 3-2. Summary of Lake-specific Lead Fish Tissue Concentration DataCOMIDLake NameTrophicLevelSampleDateMinimumSampleDateMaximumNumberofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)Maximum FishTissueConcentration(mg/kg)Source9755486 Lake Norman T3 1/1/1997 1/1/1997 3 0.500 0.500 0.500 NLFA9755486 Lake Norman T4 1/1/1997 1/1/1997 9 0.500 0.500 0.500 NLFA1943791 Lake Sinclair T3 10/26/1991 11/16/2001 22 1.043 0.500 2.846 NLFA1943791 Lake Sinclair T4 10/26/1991 11/16/2001 22 2.525 0.320 11.610 NLFA8693517 Mayo Reservoir T3 1/1/1986 1/1/1986 6 0.500 0.500 0.500 NLFA8693517 Mayo Reservoir T4 1/1/1986 1/1/1986 3 0.567 0.500 0.700 NLFA9755532 Mountain Island Lake T3 1/1/1997 1/1/1997 3 0.500 0.500 0.500 NLFA9755532 Mountain Island Lake T4 1/1/1997 1/1/1997 5 0.500 0.500 0.500 NLFASource: U.S. EPA, 2013.NLFA- National Listing of Fish Advisories database.Table 3-3. Summary of Lake-specific Mercury Fish Tissue Concentration DataCOMIDLake NameTrophicLevelSampleDateMinimumSampleDateMaximumNumberofSamplesAverage FishTissueConcentration(mg/kg)MinimumFish TissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)Source13881754 Coffeen Lake T4 10/22/1990 10/21/1991 2 0.085 0.080 0.090 NLFA1827174 Herrington Lake T3 2001 2001 2 0.164 0.164 0.164 NLFS1827174 Herrington Lake T4 2001 2001 5 0.146 0.146 0.146 NLFS8696233 Hyco Lake T3 1/1/1986 1/1/1988 54 0.020 0.020 0.020 NLFA2996516 La Cygnes Lake T3 11/7/1991 10/4/1993 3 0.023 0.020 0.030 NLFA6445736 Lake Blackshear T3 10/26/1992 12/21/2001 12 0.100 0.010 0.285 NLFA6445736 Lake Blackshear T4 10/26/1992 11/27/2001 12 0.188 0.010 0.451 NLFA6336412 Lake Juliette T3 11/23/1999 11/23/1999 1 0.100 0.100 0.100 NLFA6336412 Lake Juliette T4 9/16/1992 10/18/1999 4 0.155 0.090 0.220 NLFA9017879 Lake Macatawa T3 7/16/19875/5/1995 20 0.130 0.050 0.260 NLFA9017879 Lake Macatawa T4 7/16/19875/5/1995 22 0.169 0.080 0.390 NLFA9755486 Lake Norman T3 1/1/1997 1/1/1997 3 0.033 0.030 0.040 NLFAAttachment 3April 19, 2013Page 3-3Table 3-3. Summary of Lake-specific Mercury Fish Tissue Concentration DataCOMIDLake NameTrophicLevelSampleDateMinimumSampleDateMaximumNumberofSamplesAverage FishTissueConcentration(mg/kg)MinimumFish TissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)Source9755486 Lake Norman T4 1/1/1997 1/1/1997 9 0.168 0.080 0.350 NLFA9755486 Lake Norman T3 2003 2003 8 0.0666 0.0374 0.0958 NLFS9755486 Lake Norman T4 2003 2003 10 0.164 0.159 0.169 NLFS1943791 Lake Sinclair T3 10/26/1991 11/16/2001 31 0.090 0.010 0.930 NLFA1943791 Lake Sinclair T4 10/26/1991 11/16/2001 22 0.109 0.010 0.256 NLFA1943791 Lake Sinclair T3 2001 2001 5 0.039 0.039 0.039 NLFS1943791 Lake Sinclair T4 2001 2001 5 0.0988 0.0988 0.0988 NLFS8693517 Mayo Reservoir T3 1/1/1986 1/1/1988 13 0.065 0.020 0.220 NLFA8693517 Mayo Reservoir T4 1/1/1986 1/1/1988 8 0.339 0.080 1.300 NLFA9755532 Mountain Island Lake T3 1/1/1997 1/1/1997 5 0.064 0.020 0.190 NLFA9755532 Mountain Island Lake T4 1/1/1997 1/1/1997 10 0.093 0.060 0.130 NLFA9755532 Mountain Island Lake T4 2001 2001 5 0.105 0.105 0.105 NLFS12135490 Muskegon Lake T3 8/19/1993 8/19/1993 5 0.200 0.160 0.230 NLFA12135490 Muskegon Lake T4 7/7/1987 8/19/1993 31 0.426 0.100 0.970 NLFA10433546 Newton Lake T4 5/5/2003 5/5/2003 2 0.195 0.12 0.27 IL EPA10286056 Turtle Creek Reservoir T3 2001 2001 5 0.0615 0.0615 0.0615 NLFS10286056 Turtle Creek Reservoir T4 2001 2001 2 0.0831 0.0831 0.0831 NLFS13565470 Sangchris Lake T4 10/11/1990 10/25/1991 2 0.180 0.100 0.260 NLFA21979923 Seneca Lake T47/23/2002 8/1/2002 290.389 0.140 0.700 NLFA21979923 Seneca Lake T3 2003 2003 5 0.0411 0.0411 0.0411 NLFS21979923 Seneca Lake T4 2003 2003 5 0.743 0.743 0.743 NLFS20972936 Sooner Reservoir T4 11/30/1995 11/30/1995 1 0.240 0.240 0.240 NLFA397492 SWEPCO Lake T4 4/6/1993 4/6/1993 1 0.100 0.100 0.100 NLFA1009152 Welsh Reservoir T3 2/25/1998 2/25/1998 8 0.065 0.050 0.070 NLFA1009152 Welsh Reservoir T4 2/24/1998 2/25/1998 12 0.181 0.080 0.360 NLFASource: 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 QualityMonitoring and Assessment Program at the Illinois EPA.Attachment 4April 19, 2013Page 4-1Attachment 4: Site-Specific FishTissue Sampling Data in RiversTable 4-1. Summary of River-specific Arsenic Fish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)465516 T3 4/19/1999 6/2/1999 7 0.177 0.167 0.182465516 T4 4/19/1999 4/19/1999 5 0.176 0.167 0.1821825520 T3 9/2/1999 9/2/1999 2 0.220 0.200 0.2401825520 T4 9/2/1999 9/2/1999 1 0.220 0.220 0.2201825588 T3 8/30/1999 8/30/1999 1 0.210 0.210 0.2101825588 T4 8/30/1999 8/30/1999 1 0.230 0.230 0.2301827692 T3 8/31/1999 8/31/1999 3 0.210 0.180 0.2301827692 T4 8/31/1999 8/31/1999 1 0.210 0.210 0.2101827814 T3 9/1/1999 9/1/1999 3 0.210 0.200 0.2201827814 T4 9/1/1999 9/1/1999 1 0.210 0.210 0.2101920666 T4 3/26/1998 3/26/1998 4 0.356 0.263 0.4821949119 T3 10/9/1996 7/18/2001 6 0.020 0.020 0.0201949119 T4 7/18/2001 7/18/2001 3 0.020 0.020 0.0203286354 T3 7/2/1996 3/10/1999 13 5.308 3.000 8.0003286386 T3 9/10/1997 9/10/1997 3 0.040 0.040 0.0403286386 T4 9/10/1997 9/10/1997 4 0.040 0.040 0.0403286570 T3 12/9/1994 12/9/1994 3 0.047 0.040 0.0503286570 T4 12/9/1994 12/9/1994 3 0.040 0.040 0.0403298568 T3 11/3/1999 11/3/1999 6 8.000 8.000 8.0003298568 T4 10/25/1999 11/3/1999 6 8.000 8.000 8.0003298592 T3 9/18/1997 9/18/1997 3 0.040 0.040 0.0403298592 T4 9/16/1997 9/16/1997 3 0.040 0.040 0.0403298764 T3 11/4/1991 11/30/1999 11 2.773 0.058 8.0003298764 T4 11/4/1991 9/20/1999 7 2.343 0.040 8.0003298798 T3 11/9/1992 11/16/1999 9 2.680 0.020 8.0003298798 T4 11/9/1992 11/16/1999 11 3.647 0.020 8.0003369890 T4 8/25/1997 8/25/1997 1 0.100 0.100 0.1003434376 T3 11/20/1991 11/20/1991 5 0.040 0.040 0.040Attachment 4April 19, 2013Page 4-2Table 4-1. Summary of River-specific Arsenic Fish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)3434376 T4 11/20/1991 11/20/1991 5 0.040 0.040 0.0403434426 T3 11/10/1993 11/3/1999 8 0.040 0.040 0.0403434426 T4 11/3/1999 11/3/1999 3 0.040 0.040 0.0403443442 T3 10/27/1998 10/27/1998 3 8.000 8.000 8.0003443442 T4 10/27/1998 10/27/1998 3 0.040 0.040 0.0403443586 T3 11/7/1991 10/28/1993 9 0.040 0.040 0.0403443586 T4 11/7/1991 11/7/1991 3 0.040 0.040 0.0403483173 T3 8/9/1999 8/9/1999 4 0.178 0.164 0.1853486833 T3 8/9/1999 8/9/1999 4 0.171 0.164 0.1823486833 T4 8/9/1999 8/9/1999 1 0.164 0.164 0.1643486865 T3 8/10/1999 8/10/1999 4 0.173 0.167 0.1783486865 T4 8/10/1999 8/10/1999 3 0.175 0.167 0.1823486895 T3 10/20/1998 10/30/2000 11 0.076 0.038 0.1853486895 T4 10/20/1998 10/30/2000 4 0.123 0.039 0.2433486931 T3 10/21/1998 10/18/2000 15 0.109 0.038 0.1783486931 T4 10/18/2000 10/18/2000 1 0.039 0.039 0.0393488041 T3 8/11/1999 8/11/1999 4 0.168 0.159 0.1753488041 T4 8/11/1999 8/11/1999 1 0.169 0.169 0.1693489643 T3 8/11/1999 8/11/1999 5 0.177 0.169 0.1823489669 T3 8/11/1999 8/11/1999 4 0.189 0.167 0.2203821351 T4 1/1/1998 1/1/1998 1 0.192 0.192 0.1923883918 T3 10/22/1998 10/26/1998 4 0.182 0.178 0.1853883918 T4 10/26/1998 10/26/1998 1 0.175 0.175 0.1753884972 T3 10/20/1998 10/20/1998 5 0.182 0.178 0.1893884972 T4 10/20/1998 10/20/1998 1 0.178 0.178 0.1783885234 T3 10/22/1998 10/22/1998 9 0.172 0.154 0.1853885234 T4 10/22/1998 10/22/1998 2 0.161 0.154 0.1673885820 T3 10/20/1998 12/4/1998 11 0.176 0.156 0.1893885820 T4 10/20/1998 10/20/1998 3 0.178 0.178 0.1783885838 T3 10/20/1998 10/20/1998 4 0.184 0.172 0.1893885878 T3 10/20/1998 10/22/1998 4 0.181 0.178 0.185Attachment 4April 19, 2013Page 4-3Table 4-1. Summary of River-specific Arsenic Fish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)3885882 T3 10/26/1998 10/26/1998 6 0.182 0.169 0.1893885882 T4 10/26/1998 10/26/1998 1 0.192 0.192 0.1923885946 T3 10/27/1998 10/27/1998 3 0.182 0.175 0.1893885950 T3 10/26/1998 10/27/1998 9 0.176 0.164 0.1923886008 T3 10/21/1998 10/21/1998 7 0.175 0.161 0.1853886022 T3 10/21/1998 10/21/1998 5 0.171 0.161 0.1823886042 T3 10/19/1998 10/19/1998 6 0.230 0.169 0.4173886042 T4 10/19/1998 10/19/1998 2 0.177 0.175 0.1783886048 T3 10/19/1998 10/19/1998 6 0.248 0.172 0.3973886048 T4 10/19/1998 10/19/1998 1 0.167 0.167 0.1675218267 T3 8/3/1991 8/3/1999 4 0.183 0.178 0.1895218267 T4 8/3/1999 8/3/1999 2 0.175 0.161 0.1896341430 T3 8/23/2001 8/23/2001 1 0.020 0.020 0.0206341430 T4 8/23/2001 8/23/2001 2 0.026 0.020 0.0316341626 T3 9/14/1999 9/14/1999 4 8.000 8.000 8.0006341626 T4 9/14/1999 9/14/1999 3 8.000 8.000 8.0006361840 T3 9/23/1992 9/23/1992 6 0.020 0.020 0.0206365340 T3 9/15/1997 10/4/2001 9 0.693 0.040 2.0006365340 T4 9/15/1997 9/11/1998 6 0.040 0.040 0.0406365450 T3 10/23/1996 10/23/1996 3 0.020 0.020 0.0206365450 T4 11/6/1996 11/5/2001 6 1.010 0.020 2.0006369124 T3 10/9/1996 10/4/2001 6 1.010 0.020 2.0006369124 T4 10/31/1996 11/5/2001 6 1.010 0.020 2.0006498944 T3 12/11/1991 12/11/1991 5 0.040 0.040 0.0406499272 T3 11/28/1995 11/28/1995 3 0.020 0.020 0.0206500402 T3 12/20/1999 12/20/1999 3 0.040 0.040 0.0406500402 T4 12/20/1999 12/20/1999 3 0.040 0.040 0.0406668523 T3 6/6/2000 6/6/2000 3 0.075 0.060 0.09311617363 T3 9/27/1999 9/27/1999 2 0.215 0.210 0.22011617363 T4 9/27/1999 9/27/1999 4 0.198 0.180 0.22014348510 T3 10/3/1995 9/21/1999 6 4.010 0.019 8.000Attachment 4April 19, 2013Page 4-4Table 4-1. Summary of River-specific Arsenic Fish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)14348510 T4 7/20/2000 7/20/2000 3 8.000 8.000 8.00015434032 T3 10/10/2001 10/10/2001 12 0.041 0.036 0.06015434032 T4 10/10/2001 10/10/2001 2 0.037 0.037 0.03715823185 T4 6/2/1997 6/2/1997 3 2.000 2.000 2.00015823217 T3 10/25/2000 10/26/2000 7 0.022 0.020 0.03115823217 T4 10/29/2000 10/29/2000 3 0.020 0.020 0.02015823319 T3 10/20/1993 10/20/1993 3 0.040 0.040 0.04015823319 T4 12/6/1993 5/22/1997 6 1.020 0.040 2.00018215698 T3 12/2/1997 12/2/1997 1 1.000 1.000 1.00018215698 T4 12/2/1997 12/2/1997 1 1.000 1.000 1.00018519881 T3 10/16/1997 10/16/1997 1 1.000 1.000 1.00018519881 T4 10/16/1997 10/16/1997 1 1.000 1.000 1.00018519935 T3 11/6/2006 11/6/2006 1 0.100 0.100 0.10018519935 T4 11/6/2006 11/6/2006 1 0.100 0.100 0.10018522283 T3 11/7/2006 11/7/2006 1 0.100 0.100 0.10018522283 T4 11/7/2006 11/7/2006 1 0.100 0.100 0.10018524217 T4 11/21/2006 11/21/2006 1 0.100 0.100 0.10018546622 T3 10/11/2006 10/11/2006 1 0.100 0.100 0.10018546622 T4 10/11/2006 10/11/2006 1 0.100 0.100 0.10018548394 T3 10/11/2006 10/11/2006 1 0.100 0.100 0.10018548394 T4 10/11/2006 10/11/2006 1 0.100 0.100 0.10018548516 T3 10/12/2006 10/12/2006 1 0.100 0.100 0.10018548516 T4 10/12/2006 10/12/2006 1 0.100 0.100 0.10019440411 T4 7/17/1997 7/17/1997 1 0.120 0.120 0.12021642184 T3 11/1/2006 11/1/2006 1 0.100 0.100 0.10021642184 T4 11/1/2006 11/1/2006 1 0.100 0.100 0.10021642344 T3 11/1/2006 11/1/2006 1 0.100 0.100 0.10021642344 T4 11/1/2006 11/1/2006 1 0.100 0.100 0.100902220012 T3 10/9/1993 11/23/1994 6 0.077 0.040 0.260902220012 T4 10/7/1993 11/23/1994 6 0.040 0.040 0.040902770057 T3 11/4/1993 10/11/1995 6 0.034 0.020 0.055Attachment 4April 19, 2013Page 4-5Table 4-1. Summary of River-specific Arsenic Fish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)902770057 T4 11/4/1993 12/10/1993 3 0.040 0.040 0.040Source: U.S. EPA, 2013.Table 4-2. Summary of River-specific LeadFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)465516 T3 4/19/1999 6/2/1999 7 0.177 0.167 0.182465516 T4 4/19/1999 4/19/1999 5 0.176 0.167 0.1821825520 T3 9/2/1999 9/2/1999 2 0.220 0.200 0.2401825520 T4 9/2/1999 9/2/1999 1 0.220 0.220 0.2201825588 T3 8/30/1999 8/30/1999 1 0.210 0.210 0.2101825588 T4 8/30/1999 8/30/1999 1 0.230 0.230 0.2301827692 T3 8/31/1999 8/31/1999 3 0.210 0.180 0.2301827692 T4 8/31/1999 8/31/1999 1 0.210 0.210 0.2101827814 T3 9/1/1999 9/1/1999 3 0.210 0.200 0.2201827814 T4 9/1/1999 9/1/1999 1 0.210 0.210 0.2101920666 T4 3/26/1998 3/26/1998 4 0.177 0.175 0.1781949119 T3 10/9/1996 7/18/2001 6 1.628 0.754 4.1351949119 T4 7/18/2001 7/18/2001 3 5.223 2.632 8.9102275959 T3 9/30/1996 9/5/2000 7 0.098 0.085 0.1733286354 T3 7/2/1996 3/10/1999 13 5.231 2.000 9.0003286386 T3 9/10/1997 9/10/1997 3 1.000 1.000 1.0003286386 T4 9/10/1997 9/10/1997 4 1.000 1.000 1.0003286570 T3 12/9/1994 12/9/1994 3 1.000 1.000 1.0003286570 T4 12/9/1994 12/9/1994 3 1.000 1.000 1.0003298568 T3 11/3/1999 11/3/1999 6 9.000 9.000 9.000Attachment 4April 19, 2013Page 4-6Table 4-2. Summary of River-specific LeadFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)3298568 T4 10/25/1999 11/3/1999 6 9.000 9.000 9.0003298592 T3 9/18/1997 9/18/1997 3 1.000 1.000 1.0003298592 T4 9/16/1997 9/16/1997 3 1.000 1.000 1.0003298764 T3 11/4/1991 11/30/1999 11 3.727 1.000 9.0003298764 T4 11/4/1991 9/20/1999 7 3.286 1.000 9.0003298798 T3 11/9/1992 11/16/1999 9 3.614 0.530 9.0003298798 T4 11/9/1992 11/16/1999 11 4.636 1.000 9.0003369890 T3 8/25/1997 8/25/1997 1 0.090 0.090 0.0903369890 T4 8/25/1997 8/25/1997 2 0.090 0.090 0.0903369896 T3 1/1/1998 9/1/2001 9 0.019 0.008 0.0203369896 T4 1/1/1998 1/1/2000 4 0.016 0.007 0.0203434376 T3 11/20/1991 11/20/1991 5 2.000 2.000 2.0003434376 T4 11/20/1991 11/20/1991 5 2.000 2.000 2.0003434426 T3 11/10/1993 11/3/1999 8 1.000 1.000 1.0003434426 T4 11/3/1999 11/3/1999 3 1.000 1.000 1.0003443442 T3 10/27/1998 10/27/1998 3 9.000 9.000 9.0003443442 T4 10/27/1998 10/27/1998 3 1.000 1.000 1.0003443586 T3 11/7/1991 10/28/1993 9 1.333 1.000 2.0003443586 T4 11/7/1991 11/7/1991 3 2.000 2.000 2.0003483173 T3 8/9/1999 8/9/1999 4 0.178 0.164 0.1853486833 T3 7/22/1997 8/9/1999 7 0.136 0.090 0.1823486833 T4 7/22/1997 8/9/1999 2 0.127 0.090 0.1643486865 T3 8/10/1999 8/10/1999 4 0.173 0.167 0.1783486865 T4 8/10/1999 8/10/1999 3 0.175 0.167 0.1823486895 T3 10/20/1998 10/30/2000 11 0.164 0.038 0.8403486895 T4 10/20/1998 10/30/2000 4 0.072 0.039 0.1723486931 T3 10/21/1998 10/18/2000 15 0.813 0.038 10.3003486931 T4 10/18/2000 10/18/2000 1 0.039 0.039 0.0393488041 T3 8/11/1999 8/11/1999 4 0.168 0.159 0.1753488041 T4 8/11/1999 8/11/1999 1 0.169 0.169 0.1693489643 T3 8/11/1999 8/11/1999 5 0.177 0.169 0.182Attachment 4April 19, 2013Page 4-7Table 4-2. Summary of River-specific LeadFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)3489669 T3 8/11/1999 8/11/1999 4 0.176 0.167 0.1893821273 T3 9/9/1996 9/9/1996 1 0.039 0.039 0.0393883918 T3 10/22/1998 10/26/1998 4 0.182 0.178 0.1853883918 T4 10/26/1998 10/26/1998 1 0.175 0.175 0.1753884972 T3 10/20/1998 10/20/1998 5 0.249 0.178 0.5093884972 T4 10/20/1998 10/20/1998 1 0.178 0.178 0.1783885234 T3 10/22/1998 10/22/1998 9 0.173 0.154 0.1853885234 T4 10/22/1998 10/22/1998 2 0.202 0.154 0.2503885820 T3 10/20/1998 12/4/1998 11 0.260 0.156 1.0303885820 T4 10/20/1998 10/20/1998 3 0.178 0.178 0.1783885838 T3 10/20/1998 10/20/1998 4 0.184 0.172 0.1893885878 T3 10/20/1998 10/22/1998 4 0.190 0.178 0.2223885882 T3 10/26/1998 10/26/1998 6 0.182 0.169 0.1893885882 T4 10/26/1998 10/26/1998 1 0.192 0.192 0.1923885946 T3 10/27/1998 10/27/1998 3 0.182 0.175 0.1893885950 T3 10/26/1998 10/27/1998 9 0.176 0.164 0.1923886008 T3 10/21/1998 10/21/1998 7 0.175 0.161 0.1853886022 T3 10/21/1998 10/21/1998 5 0.171 0.161 0.1823886042 T3 10/19/1998 10/19/1998 6 0.172 0.167 0.1823886042 T4 10/19/1998 10/19/1998 2 0.172 0.169 0.1753886048 T3 10/19/1998 10/19/1998 6 0.176 0.159 0.1893886048 T4 10/19/1998 10/19/1998 1 0.167 0.167 0.1675218213 T3 7/21/1997 7/21/1997 3 0.093 0.090 0.1005218267 T3 8/3/1991 8/3/1999 4 0.183 0.178 0.1895218267 T4 8/3/1999 8/3/1999 2 0.175 0.161 0.1896341430 T3 8/23/2001 8/23/2001 1 0.500 0.500 0.5006341430 T4 8/23/2001 8/23/2001 2 0.500 0.500 0.5006341626 T3 9/14/1999 9/14/1999 4 17.750 9.000 31.0006341626 T4 9/14/1999 9/14/1999 3 10.667 9.000 12.0006361840 T3 9/23/1992 9/23/1992 6 1.000 1.000 1.0006365340 T3 9/15/1997 10/4/2001 9 1.000 1.000 1.000Attachment 4April 19, 2013Page 4-8Table 4-2. Summary of River-specific LeadFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)6365340 T4 9/15/1997 9/11/1998 6 1.283 1.000 2.7006365450 T3 10/23/1996 10/23/1996 3 1.000 1.000 1.0006365450 T4 11/6/1996 11/5/2001 6 1.000 1.000 1.0006369124 T3 10/9/1996 10/4/2001 6 1.000 1.000 1.0006369124 T4 10/31/1996 11/5/2001 6 1.000 1.000 1.0006498944 T3 12/11/1991 12/11/1991 5 2.000 2.000 2.0006499272 T3 11/28/1995 11/28/1995 3 1.000 1.000 1.0006500402 T3 12/20/1999 12/20/1999 3 1.000 1.000 1.0006500402 T4 12/20/1999 12/20/1999 3 1.000 1.000 1.0006668523 T3 6/6/2000 6/6/2000 3 0.089 0.052 0.1226920804 T4 10/4/1996 10/4/1996 1 0.500 0.500 0.5006925367 T4 9/25/1997 9/25/1997 1 0.500 0.500 0.5007626082 T4 1/1/2002 1/1/2002 2 0.000 0.000 0.0009614577 T4 1/1/2002 1/1/2002 1 1.900 1.900 1.9009721701 T4 1/1/1998 1/1/1998 1 1.800 1.800 1.80011617363 T3 9/27/1999 9/27/1999 2 0.215 0.210 0.22011617363 T4 9/27/1999 9/27/1999 4 0.188 0.180 0.21012035635 T4 1/1/2002 1/1/2002 1 1.000 1.000 1.00014348510 T3 10/3/1995 9/21/1999 6 5.000 1.000 9.00014348510 T4 7/20/2000 7/20/2000 3 9.000 9.000 9.00015380191 T3 9/8/1997 9/8/1997 2 0.090 0.090 0.09015434032 T3 10/10/2001 10/10/2001 12 0.040 0.036 0.06215434032 T4 10/10/2001 10/10/2001 2 0.037 0.037 0.03715823185 T4 6/2/1997 6/2/1997 3 3.000 3.000 3.00015823217 T3 10/25/2000 10/26/2000 7 0.500 0.500 0.50015823217 T4 10/29/2000 10/29/2000 3 0.500 0.500 0.50015823319 T3 10/20/1993 10/20/1993 3 1.000 1.000 1.00015823319 T4 12/6/1993 5/22/1997 6 2.000 1.000 3.00019314268 T3 10/1/1996 10/1/1996 1 0.500 0.500 0.50019440411 T3 7/17/1997 7/17/1997 3 0.090 0.090 0.09019440411 T4 7/17/1997 7/17/1997 1 0.090 0.090 0.090Attachment 4April 19, 2013Page 4-9Table 4-2. Summary of River-specific LeadFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)19440417 T3 9/9/1996 9/9/1996 2 0.015 0.005 0.02419440431 T3 9/9/1996 9/1/2001 15 0.038 0.005 0.24019440431 T4 9/9/1996 9/1/2001 6 0.661 0.008 3.83019453185 T3 1/1/1998 1/1/1998 2 0.253 0.222 0.28419453185 T4 1/1/1998 1/1/1998 1 0.380 0.380 0.38024750511 T3 10/4/1996 8/2/2001 8 0.129 0.085 0.232901990078 T4 1/1/1998 1/1/1998 1 1.600 1.600 1.600902220012 T3 10/9/1993 11/23/1994 6 1.000 1.000 1.000902220012 T4 10/7/1993 11/23/1994 6 1.000 1.000 1.000902770057 T3 11/4/1993 10/11/1995 6 1.083 1.000 1.500902770057 T4 11/4/1993 12/10/1993 3 1.000 1.000 1.000465516 T3 4/19/1999 6/2/1999 7 0.177 0.167 0.182465516 T4 4/19/1999 4/19/1999 5 0.176 0.167 0.1821825520 T3 9/2/1999 9/2/1999 2 0.220 0.200 0.2401825520 T4 9/2/1999 9/2/1999 1 0.220 0.220 0.2201825588 T3 8/30/1999 8/30/1999 1 0.210 0.210 0.2101825588 T4 8/30/1999 8/30/1999 1 0.230 0.230 0.2301827692 T3 8/31/1999 8/31/1999 3 0.210 0.180 0.2301827692 T4 8/31/1999 8/31/1999 1 0.210 0.210 0.2101827814 T3 9/1/1999 9/1/1999 3 0.210 0.200 0.2201827814 T4 9/1/1999 9/1/1999 1 0.210 0.210 0.2101920666 T4 3/26/1998 3/26/1998 4 0.177 0.175 0.1781949119 T3 10/9/1996 7/18/2001 6 1.628 0.754 4.1351949119 T4 7/18/2001 7/18/2001 3 5.223 2.632 8.9102275959 T3 9/30/1996 9/5/2000 7 0.098 0.085 0.1733286354 T3 7/2/1996 3/10/1999 13 5.231 2.000 9.0003286386 T3 9/10/1997 9/10/1997 3 1.000 1.000 1.0003286386 T4 9/10/1997 9/10/1997 4 1.000 1.000 1.0003286570 T3 12/9/1994 12/9/1994 3 1.000 1.000 1.0003286570 T4 12/9/1994 12/9/1994 3 1.000 1.000 1.0003298568 T3 11/3/1999 11/3/1999 6 9.000 9.000 9.000Attachment 4April 19, 2013Page 4-10Table 4-2. Summary of River-specific LeadFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)3298568 T4 10/25/1999 11/3/1999 6 9.000 9.000 9.0003298592 T3 9/18/1997 9/18/1997 3 1.000 1.000 1.0003298592 T4 9/16/1997 9/16/1997 3 1.000 1.000 1.0003298764 T3 11/4/1991 11/30/1999 11 3.727 1.000 9.0003298764 T4 11/4/1991 9/20/1999 7 3.286 1.000 9.0003298798 T3 11/9/1992 11/16/1999 9 3.614 0.530 9.0003298798 T4 11/9/1992 11/16/1999 11 4.636 1.000 9.0003369890 T3 8/25/1997 8/25/1997 1 0.090 0.090 0.0903369890 T4 8/25/1997 8/25/1997 2 0.090 0.090 0.0903369896 T3 1/1/1998 9/1/2001 9 0.019 0.008 0.0203369896 T4 1/1/1998 1/1/2000 4 0.016 0.007 0.0203434376 T3 11/20/1991 11/20/1991 5 2.000 2.000 2.0003434376 T4 11/20/1991 11/20/1991 5 2.000 2.000 2.0003434426 T3 11/10/1993 11/3/1999 8 1.000 1.000 1.0003434426 T4 11/3/1999 11/3/1999 3 1.000 1.000 1.0003443442 T3 10/27/1998 10/27/1998 3 9.000 9.000 9.0003443442 T4 10/27/1998 10/27/1998 3 1.000 1.000 1.0003443586 T3 11/7/1991 10/28/1993 9 1.333 1.000 2.0003443586 T4 11/7/1991 11/7/1991 3 2.000 2.000 2.0003483173 T3 8/9/1999 8/9/1999 4 0.178 0.164 0.1853486833 T3 7/22/1997 8/9/1999 7 0.136 0.090 0.1823486833 T4 7/22/1997 8/9/1999 2 0.127 0.090 0.1643486865 T3 8/10/1999 8/10/1999 4 0.173 0.167 0.1783486865 T4 8/10/1999 8/10/1999 3 0.175 0.167 0.1823486895 T3 10/20/1998 10/30/2000 11 0.164 0.038 0.8403486895 T4 10/20/1998 10/30/2000 4 0.072 0.039 0.1723486931 T3 10/21/1998 10/18/2000 15 0.813 0.038 10.3003486931 T4 10/18/2000 10/18/2000 1 0.039 0.039 0.0393488041 T3 8/11/1999 8/11/1999 4 0.168 0.159 0.1753488041 T4 8/11/1999 8/11/1999 1 0.169 0.169 0.1693489643 T3 8/11/1999 8/11/1999 5 0.177 0.169 0.182Attachment 4April 19, 2013Page 4-11Table 4-2. Summary of River-specific LeadFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)3489669 T3 8/11/1999 8/11/1999 4 0.176 0.167 0.1893821273 T3 9/9/1996 9/9/1996 1 0.039 0.039 0.0393883918 T3 10/22/1998 10/26/1998 4 0.182 0.178 0.1853883918 T4 10/26/1998 10/26/1998 1 0.175 0.175 0.1753884972 T3 10/20/1998 10/20/1998 5 0.249 0.178 0.5093884972 T4 10/20/1998 10/20/1998 1 0.178 0.178 0.1783885234 T3 10/22/1998 10/22/1998 9 0.173 0.154 0.1853885234 T4 10/22/1998 10/22/1998 2 0.202 0.154 0.2503885820 T3 10/20/1998 12/4/1998 11 0.260 0.156 1.0303885820 T4 10/20/1998 10/20/1998 3 0.178 0.178 0.1783885838 T3 10/20/1998 10/20/1998 4 0.184 0.172 0.1893885878 T3 10/20/1998 10/22/1998 4 0.190 0.178 0.2223885882 T3 10/26/1998 10/26/1998 6 0.182 0.169 0.1893885882 T4 10/26/1998 10/26/1998 1 0.192 0.192 0.1923885946 T3 10/27/1998 10/27/1998 3 0.182 0.175 0.1893885950 T3 10/26/1998 10/27/1998 9 0.176 0.164 0.1923886008 T3 10/21/1998 10/21/1998 7 0.175 0.161 0.1853886022 T3 10/21/1998 10/21/1998 5 0.171 0.161 0.1823886042 T3 10/19/1998 10/19/1998 6 0.172 0.167 0.1823886042 T4 10/19/1998 10/19/1998 2 0.172 0.169 0.1753886048 T3 10/19/1998 10/19/1998 6 0.176 0.159 0.1893886048 T4 10/19/1998 10/19/1998 1 0.167 0.167 0.1675218213 T3 7/21/1997 7/21/1997 3 0.093 0.090 0.1005218267 T3 8/3/1991 8/3/1999 4 0.183 0.178 0.1895218267 T4 8/3/1999 8/3/1999 2 0.175 0.161 0.1896341430 T3 8/23/2001 8/23/2001 1 0.500 0.500 0.5006341430 T4 8/23/2001 8/23/2001 2 0.500 0.500 0.5006341626 T3 9/14/1999 9/14/1999 4 17.750 9.000 31.0006341626 T4 9/14/1999 9/14/1999 3 10.667 9.000 12.0006361840 T3 9/23/1992 9/23/1992 6 1.000 1.000 1.0006365340 T3 9/15/1997 10/4/2001 9 1.000 1.000 1.000Attachment 4April 19, 2013Page 4-12Table 4-2. Summary of River-specific LeadFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)6365340 T4 9/15/1997 9/11/1998 6 1.283 1.000 2.7006365450 T3 10/23/1996 10/23/1996 3 1.000 1.000 1.0006365450 T4 11/6/1996 11/5/2001 6 1.000 1.000 1.0006369124 T3 10/9/1996 10/4/2001 6 1.000 1.000 1.0006369124 T4 10/31/1996 11/5/2001 6 1.000 1.000 1.0006498944 T3 12/11/1991 12/11/1991 5 2.000 2.000 2.0006499272 T3 11/28/1995 11/28/1995 3 1.000 1.000 1.0006500402 T3 12/20/1999 12/20/1999 3 1.000 1.000 1.0006500402 T4 12/20/1999 12/20/1999 3 1.000 1.000 1.0006668523 T3 6/6/2000 6/6/2000 3 0.089 0.052 0.1226920804 T4 10/4/1996 10/4/1996 1 0.500 0.500 0.5006925367 T4 9/25/1997 9/25/1997 1 0.500 0.500 0.5007626082 T4 1/1/2002 1/1/2002 2 0.000 0.000 0.0009614577 T4 1/1/2002 1/1/2002 1 1.900 1.900 1.9009721701 T4 1/1/1998 1/1/1998 1 1.800 1.800 1.80011617363 T3 9/27/1999 9/27/1999 2 0.215 0.210 0.22011617363 T4 9/27/1999 9/27/1999 4 0.188 0.180 0.21012035635 T4 1/1/2002 1/1/2002 1 1.000 1.000 1.00014348510 T3 10/3/1995 9/21/1999 6 5.000 1.000 9.00014348510 T4 7/20/2000 7/20/2000 3 9.000 9.000 9.00015380191 T3 9/8/1997 9/8/1997 2 0.090 0.090 0.09015434032 T3 10/10/2001 10/10/2001 12 0.040 0.036 0.06215434032 T4 10/10/2001 10/10/2001 2 0.037 0.037 0.03715823185 T4 6/2/1997 6/2/1997 3 3.000 3.000 3.00015823217 T3 10/25/2000 10/26/2000 7 0.500 0.500 0.50015823217 T4 10/29/2000 10/29/2000 3 0.500 0.500 0.50015823319 T3 10/20/1993 10/20/1993 3 1.000 1.000 1.00015823319 T4 12/6/1993 5/22/1997 6 2.000 1.000 3.00019314268 T3 10/1/1996 10/1/1996 1 0.500 0.500 0.50019440411 T3 7/17/1997 7/17/1997 3 0.090 0.090 0.09019440411 T4 7/17/1997 7/17/1997 1 0.090 0.090 0.090Attachment 4April 19, 2013Page 4-13Table 4-2. Summary of River-specific LeadFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)19440417 T3 9/9/1996 9/9/1996 2 0.015 0.005 0.02419440431 T3 9/9/1996 9/1/2001 15 0.038 0.005 0.24019440431 T4 9/9/1996 9/1/2001 6 0.661 0.008 3.83019453185 T3 1/1/1998 1/1/1998 2 0.253 0.222 0.28419453185 T4 1/1/1998 1/1/1998 1 0.380 0.380 0.38024750511 T3 10/4/1996 8/2/2001 8 0.129 0.085 0.232901990078 T4 1/1/1998 1/1/1998 1 1.600 1.600 1.600902220012 T3 10/9/1993 11/23/1994 6 1.000 1.000 1.000902220012 T4 10/7/1993 11/23/1994 6 1.000 1.000 1.000902770057 T3 11/4/1993 10/11/1995 6 1.083 1.000 1.500902770057 T4 11/4/1993 12/10/1993 3 1.000 1.000 1.000Source: U.S. EPA, 2013.Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)401964 T3 6/9/1992 6/9/1992 5 0.110 0.100 0.150401964 T4 6/9/1992 6/9/1992 2 0.225 0.100 0.350401986 T3 6/9/1992 6/9/1992 4 0.100 0.100 0.100401986 T4 6/9/1992 6/9/1992 2 0.125 0.100 0.150465516 T3 4/19/1999 6/2/1999 7 0.125 0.059 0.176465516 T4 4/19/1999 4/19/1999 5 0.172 0.129 0.197465518 T3 9/1/2006 9/1/2006 10 0.104 0.036 0.190465518 T4 9/1/2006 9/1/2006 2 0.074 0.051 0.096842174 T3 6/14/1994 6/14/1994 6 0.103 0.100 0.120842174 T4 6/14/1994 6/14/1994 1 0.140 0.140 0.140Attachment 4April 19, 2013Page 4-14Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)908917 T3 9/9/1995 9/9/1995 1 0.080 0.080 0.080908917 T4 9/9/1995 9/9/1995 1 0.070 0.070 0.0701011744 T4 5/18/1995 5/18/1995 1 0.090 0.090 0.0901100520 T4 7/29/1992 7/29/1992 2 0.370 0.240 0.5001104098 T3 6/6/1996 6/6/1996 2 0.020 0.010 0.0301104234 T3 9/6/1990 11/10/1997 50 0.267 0.030 0.7801104234 T4 9/6/1990 10/4/1990 8 0.368 0.110 0.8001576378 T3 8/30/1990 8/30/1990 1 0.040 0.040 0.0401576378 T4 8/30/1990 10/27/1998 9 0.071 0.040 0.1101643099 T3 6/19/1991 5/9/1994 2 0.125 0.090 0.1601771994 T3 7/3/1991 7/3/1991 1 0.080 0.080 0.0801771994 T4 7/3/1991 7/3/1991 4 0.190 0.110 0.2801777458 T4 8/1/1989 9/6/1991 11 0.735 0.230 2.4901777516 T4 9/14/1993 9/14/1993 2 0.025 0.020 0.0301825520 T3 9/2/1999 9/2/1999 2 0.090 0.090 0.0901825520 T4 9/2/1999 9/2/1999 1 0.150 0.150 0.1501825588 T3 8/30/1999 8/30/1999 1 0.200 0.200 0.2001825588 T4 8/30/1999 8/30/1999 1 0.250 0.250 0.2501827692 T3 8/31/1999 8/31/1999 3 0.127 0.090 0.1601827692 T4 8/31/1999 8/31/1999 1 0.160 0.160 0.1601827814 T3 9/1/1999 9/1/1999 3 0.103 0.070 0.1301827814 T4 9/1/1999 9/1/1999 1 0.160 0.160 0.1601875133 T3 1/1/1989 9/15/1992 7 0.113 0.080 0.1601875133 T4 1/1/1989 9/15/1992 4 0.145 0.060 0.2701875235 T3 6/27/1990 6/27/1990 1 0.100 0.100 0.1001875235 T4 6/27/1990 6/27/1990 1 0.270 0.270 0.2701918174 T3 1/1/1993 1/1/1993 20 0.133 0.050 0.2701918174 T4 1/1/1993 1/1/1993 14 0.186 0.070 0.7101920666 T4 3/26/1998 3/26/1998 4 0.125 0.094 0.1571949119 T3 10/9/1996 7/18/2001 6 0.105 0.070 0.1341949119 T4 7/18/2001 7/18/2001 3 0.178 0.121 0.209Attachment 4April 19, 2013Page 4-15Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)1953637 T3 1/1/1991 1/1/1997 33 0.132 0.010 0.5201953637 T4 1/1/1991 1/1/1997 17 0.282 0.190 0.8202121080 T3 9/20/1994 9/20/1994 21 0.067 0.010 0.1502121080 T4 9/20/1994 9/20/1994 11 0.122 0.050 0.2602275959 T3 8/13/1990 9/5/2000 11 0.112 0.074 0.2002277349 T3 8/31/1990 9/15/1993 4 0.083 0.050 0.1202293124 T3 1/1/1991 1/1/1996 36 0.154 0.070 0.3002293124 T4 1/1/1991 12/10/1993 43 0.292 0.060 0.7402590201 T3 1/1/1998 1/1/1998 1 0.020 0.020 0.0202590201 T4 7/1/1990 7/1/1990 2 0.036 0.019 0.0522590277 T3 6/18/1990 10/22/1993 3 0.144 0.070 0.1812590277 T4 11/4/1992 11/4/1992 6 0.132 0.070 0.1802591435 T3 1/1/1997 1/1/1997 1 0.012 0.012 0.0122593585 T3 1/1/1997 1/1/1997 1 0.027 0.027 0.0272603121 T3 8/9/1994 10/21/1995 3 0.417 0.360 0.5302603121 T4 3/10/1992 3/10/1992 1 1.690 1.690 1.6902651870 T4 9/21/1995 9/21/1995 2 0.035 0.020 0.0502997936 T3 8/14/1990 9/16/1994 5 0.106 0.090 0.1403125222 T3 8/27/1991 8/29/1995 3 0.067 0.030 0.0903125222 T4 7/7/1993 8/29/1995 2 0.045 0.040 0.0503286354 T3 11/13/1991 3/10/1999 14 0.105 0.100 0.1403286386 T3 9/10/1997 9/10/1997 3 0.070 0.050 0.0803286386 T4 9/10/1997 9/10/1997 4 0.220 0.150 0.3503286494 T3 9/18/1990 9/18/1990 1 0.100 0.100 0.1003286494 T4 9/18/1990 9/18/1990 1 0.300 0.300 0.3003286570 T3 12/9/1994 12/9/1994 3 0.080 0.060 0.1103286570 T4 12/9/1994 12/9/1994 3 0.237 0.170 0.3103291996 T3 11/20/1991 11/20/1991 1 0.300 0.300 0.3003298568 T3 1/1/1993 11/3/1999 24 0.074 0.010 0.1603298568 T4 1/1/1993 11/3/1999 26 0.116 0.020 0.5003298592 T3 9/18/1997 9/18/1997 3 0.040 0.030 0.050Attachment 4April 19, 2013Page 4-16Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)3298592 T4 9/16/1997 9/16/1997 3 0.233 0.170 0.3103298608 T3 10/31/1991 10/31/1991 1 0.100 0.100 0.1003298760 T3 10/27/1992 10/27/1992 4 0.153 0.100 0.2103298760 T4 10/27/1992 10/27/1992 1 0.180 0.180 0.1803298764 T3 1/1/1991 11/30/1999 31 0.036 0.010 0.1303298764 T4 1/1/1991 9/20/1999 30 0.112 0.030 0.4003298798 T3 1/1/1992 11/16/1999 28 0.028 0.010 0.1003298798 T4 1/1/1992 11/16/1999 26 0.146 0.010 0.5203369890 T3 8/25/1997 8/25/1997 1 0.060 0.060 0.0603369890 T4 8/25/1997 8/25/1997 2 0.120 0.080 0.1603369896 T3 1/1/1998 9/1/2003 14 0.145 0.055 0.3153369896 T4 1/1/1998 9/1/2003 5 0.173 0.096 0.2803369900 T3 7/1/2002 7/1/2002 4 0.138 0.081 0.2663369900 T4 7/1/2002 7/1/2002 2 0.122 0.087 0.1573424530 T3 4/4/1990 4/4/1990 3 0.200 0.200 0.2003424530 T4 4/9/1990 4/11/1990 6 0.233 0.200 0.4003434274 T3 1/1/1991 1/1/1997 56 0.080 0.010 0.2003434274 T4 1/1/1991 1/1/1997 71 0.197 0.020 0.7403434376 T3 11/20/1991 11/20/1991 5 0.140 0.100 0.2003434376 T4 11/20/1991 11/20/1991 5 0.270 0.200 0.4003434426 T3 11/10/1993 11/3/1999 8 0.080 0.030 0.1083434426 T4 11/3/1999 11/3/1999 3 0.220 0.129 0.2813443442 T3 10/27/1998 10/27/1998 3 0.100 0.100 0.1003443442 T4 10/27/1998 10/27/1998 3 0.067 0.013 0.0973443586 T3 11/7/1991 10/28/1993 9 0.072 0.010 0.1003443586 T4 11/7/1991 11/7/1991 3 0.133 0.100 0.2003483173 T3 8/9/1999 8/9/1999 4 0.216 0.149 0.3573483191 T3 1/1/1994 1/1/1994 2 0.115 0.100 0.1303483191 T4 1/1/1994 1/1/1994 22 0.150 0.060 0.4603486833 T3 7/22/1997 8/9/1999 7 0.175 0.100 0.3563486833 T4 7/22/1997 8/9/1999 2 0.107 0.084 0.130Attachment 4April 19, 2013Page 4-17Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)3486865 T3 8/10/1999 8/10/1999 4 0.200 0.056 0.5153486865 T4 8/10/1999 8/10/1999 3 0.084 0.069 0.1123486895 T3 1/1/1992 10/30/2000 34 0.098 0.020 0.2743486895 T4 1/1/1995 10/30/2000 20 0.171 0.050 0.9103486931 T3 10/21/1998 10/18/2000 15 0.143 0.045 0.3153486931 T4 10/18/2000 10/18/2000 1 0.159 0.159 0.1593488041 T3 8/11/1999 8/11/1999 4 0.141 0.066 0.2893488041 T4 8/11/1999 8/11/1999 1 0.077 0.077 0.0773489643 T3 1/1/1995 8/11/1999 7 0.141 0.075 0.2263489643 T4 1/1/1995 1/1/1995 5 0.116 0.080 0.1703489669 T3 1/1/1990 8/11/1999 22 0.127 0.030 0.2403489669 T4 1/1/1990 1/1/1993 15 0.155 0.020 0.5303601014 T4 8/5/1991 8/5/1991 1 0.210 0.210 0.2103624709 T4 9/12/1990 9/12/1990 1 0.160 0.160 0.1603629245 T3 1/1/1990 1/1/1990 1 0.110 0.110 0.1103646872 T3 7/24/1990 10/28/1993 4 0.120 0.060 0.2103717140 T3 9/28/1995 9/28/1995 3 0.107 0.100 0.1203727853 T3 8/31/1995 8/31/1995 2 0.175 0.160 0.1903727857 T3 11/19/1990 10/7/1993 6 0.088 0.060 0.1303729559 T3 7/19/1994 7/19/1994 1 0.080 0.080 0.0803737637 T3 9/17/1990 8/25/1995 14 0.178 0.070 0.3603768864 T3 7/17/1999 9/21/1999 4 0.153 0.100 0.2303768864 T4 10/11/1999 10/11/1999 1 0.110 0.110 0.1103768870 T3 6/4/2002 7/20/2005 10 0.077 0.014 0.2703768870 T4 6/4/2002 9/18/2003 4 0.094 0.075 0.1163786927 T3 9/29/1995 9/29/1995 2 0.100 0.100 0.1003786927 T4 9/29/1995 9/29/1995 1 0.100 0.100 0.1003821273 T3 9/9/1996 9/9/1996 1 0.064 0.064 0.0643821343 T3 7/1/2002 9/1/2004 8 0.091 0.047 0.1503821343 T4 7/1/2002 7/1/2002 1 0.098 0.098 0.0983821351 T3 1/1/1998 1/1/1998 1 0.147 0.147 0.147Attachment 4April 19, 2013Page 4-18Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)3821351 T4 1/1/1998 1/1/1998 3 0.213 0.080 0.4353836017 T3 4/22/1998 4/22/1998 1 0.380 0.380 0.3803836017 T4 4/22/1998 4/22/1998 3 0.393 0.230 0.5203836053 T3 4/15/1998 4/15/1999 6 0.198 0.090 0.4503836053 T4 4/15/1998 4/15/1998 2 0.635 0.530 0.7403838221 T4 7/31/1990 7/31/1990 1 0.390 0.390 0.3903883804 T3 1/1/1995 1/1/1995 3 0.133 0.070 0.2503883804 T4 1/1/1995 1/1/1995 16 0.189 0.020 0.3503883918 T3 10/22/1998 10/26/1998 4 0.144 0.053 0.2663883918 T4 10/26/1998 10/26/1998 1 0.152 0.152 0.1523884972 T3 10/20/1998 10/20/1998 5 0.141 0.074 0.3093884972 T4 10/20/1998 10/20/1998 1 0.056 0.056 0.0563885234 T3 10/22/1998 10/22/1998 9 0.057 0.023 0.1063885234 T4 10/22/1998 10/22/1998 2 0.201 0.155 0.2473885820 T3 10/20/1998 12/4/1998 11 0.104 0.043 0.1843885820 T4 10/20/1998 10/20/1998 3 0.162 0.074 0.3353885838 T3 10/20/1998 10/20/1998 4 0.094 0.073 0.1123885878 T3 10/20/1998 10/22/1998 4 0.040 0.023 0.0583885882 T3 10/26/1998 10/26/1998 6 0.118 0.020 0.2223885882 T4 10/26/1998 10/26/1998 1 0.136 0.136 0.1363885946 T3 10/27/1998 10/27/1998 3 0.126 0.021 0.3023885950 T3 10/26/1998 10/27/1998 9 0.088 0.018 0.1913886008 T3 10/21/1998 10/21/1998 7 0.155 0.096 0.2973886022 T3 10/21/1998 10/21/1998 5 0.106 0.064 0.1653886042 T3 10/19/1998 10/19/1998 6 0.154 0.092 0.2443886042 T4 10/19/1998 10/19/1998 2 0.136 0.087 0.1853886048 T3 8/8/1990 10/19/1998 9 0.135 0.060 0.2443886048 T4 8/8/1990 10/19/1998 2 0.373 0.315 0.4303886058 T3 1/1/1993 1/1/1994 31 0.161 0.060 0.3703886058 T4 1/1/1993 1/1/1994 48 0.225 0.080 0.7404199356 T3 8/18/1993 8/18/1993 1 0.780 0.780 0.780Attachment 4April 19, 2013Page 4-19Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)4200472 T4 9/30/1992 9/30/1992 1 3.300 3.300 3.3004200544 T4 9/30/1992 9/30/1992 1 2.540 2.540 2.5404481763 T3 1/1/1997 1/1/1997 1 0.023 0.023 0.0234481801 T3 1/1/1998 1/1/1998 1 0.141 0.141 0.1414481805 T3 5/21/1993 5/21/1993 4 0.080 0.070 0.0904481805 T4 5/21/1993 5/21/1993 2 0.140 0.130 0.1504481897 T3 6/5/1990 6/5/1990 1 0.116 0.116 0.1164489200 T3 1/1/1998 1/1/1998 1 0.210 0.210 0.2104496220 T3 1/1/1998 1/1/1998 1 0.125 0.125 0.1254507430 T3 9/16/1993 9/16/1993 6 0.078 0.030 0.1704507430 T4 9/16/1993 9/16/1993 1 0.100 0.100 0.1004518742 T3 8/4/1993 8/4/1993 1 0.110 0.110 0.1104532167 T4 12/15/1993 12/15/1993 19 0.088 0.030 0.1704726659 T3 10/15/1990 1/1/2000 6 0.015 0.010 0.0304726659 T4 10/15/1990 1/1/2000 4 0.022 0.009 0.0404754924 T3 10/11/1995 10/11/1995 1 0.060 0.060 0.0604782413 T3 10/7/1994 10/7/1994 1 0.160 0.160 0.1604782483 T3 9/15/1993 9/15/1993 2 0.220 0.150 0.2904782483 T4 10/22/1993 10/22/1993 1 0.270 0.270 0.2704782593 T3 8/27/1993 10/22/1993 3 0.383 0.220 0.5904782753 T3 9/2/1992 10/3/1995 8 0.380 0.070 0.8804782753 T4 11/3/1994 11/3/1994 5 0.220 0.070 0.3004836824 T3 1/1/1989 1/1/1989 1 0.020 0.020 0.0204836968 T3 8/18/1992 8/18/1992 4 0.135 0.070 0.2204836968 T4 8/18/1992 8/18/1992 2 0.330 0.240 0.4204858823 T3 9/18/1990 9/18/1990 3 0.140 0.110 0.1904858823 T4 9/18/1990 9/18/1990 3 0.180 0.090 0.3004998241 T3 8/27/1992 8/24/1994 2 0.060 0.060 0.0605217233 T3 1/1/1992 1/1/1993 6 0.085 0.030 0.1905217233 T4 1/1/1992 1/1/1993 7 0.201 0.130 0.3105218213 T3 7/21/1997 7/21/1997 3 0.077 0.040 0.130Attachment 4April 19, 2013Page 4-20Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)5218267 T3 8/3/1991 8/3/1999 4 0.127 0.063 0.2515218267 T4 8/3/1999 8/3/1999 2 0.115 0.109 0.1215803966 T4 9/4/1991 9/4/1991 1 0.080 0.080 0.0806228858 T3 7/12/1998 7/12/1998 8 0.139 0.020 0.5706231874 T4 4/15/1997 4/28/1998 50 0.291 0.070 0.7606341430 T3 8/23/2001 8/23/2001 1 0.181 0.181 0.1816341430 T4 8/23/2001 8/23/2001 2 0.248 0.159 0.3376341626 T3 10/31/1990 9/14/1999 5 0.418 0.100 0.8806341626 T4 10/31/1990 9/14/1999 4 0.515 0.300 0.6506361840 T3 9/23/1992 9/23/1992 6 0.047 0.010 0.1006365340 T3 9/15/1997 10/4/2001 9 0.101 0.010 0.3206365340 T4 9/15/1997 9/11/1998 6 0.214 0.040 0.3506365450 T3 10/23/1996 10/23/1996 3 0.400 0.220 0.5206365450 T4 11/6/1996 11/5/2001 6 0.467 0.010 0.8206369124 T3 10/9/1996 10/4/2001 6 0.207 0.110 0.4106369124 T4 10/31/1996 11/5/2001 6 0.270 0.240 0.3306498944 T3 12/11/1991 12/11/1991 5 0.100 0.100 0.1006499272 T3 11/28/1995 11/28/1995 3 0.134 0.079 0.2106500402 T3 12/20/1999 12/20/1999 3 0.100 0.100 0.1006500402 T4 12/20/1999 12/20/1999 3 0.268 0.204 0.3076658351 T3 6/25/1999 6/25/1999 2 0.140 0.130 0.1506658351 T4 6/25/1999 6/25/1999 8 0.161 0.110 0.2306668523 T3 6/6/2000 6/6/2000 36 0.325 0.120 1.1206668523 T4 6/6/2000 6/6/2000 4 0.178 0.120 0.2506906557 T3 10/9/2002 10/9/2002 2 0.018 0.018 0.0186906557 T4 10/9/2002 10/9/2002 3 0.018 0.018 0.0186907783 T3 9/30/2005 9/30/2005 1 0.114 0.114 0.1146907783 T4 9/30/2005 9/30/2005 3 0.181 0.113 0.2926919008 T3 9/13/1995 9/20/1995 2 0.100 0.100 0.1006919008 T4 9/27/1994 9/20/1995 3 0.273 0.100 0.6206919906 T3 8/27/2003 8/27/2003 4 0.018 0.018 0.020Attachment 4April 19, 2013Page 4-21Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)6919906 T4 8/27/2003 6/25/2007 12 0.079 0.020 0.2136920804 T4 10/4/1996 10/17/2002 2 0.082 0.072 0.0936925247 T3 10/3/1994 10/3/1994 1 0.210 0.210 0.2106925247 T4 10/3/1994 10/3/1994 1 0.280 0.280 0.2806925271 T3 11/16/2006 11/16/2006 1 0.500 0.500 0.5006925271 T4 11/16/2006 11/16/2006 7 0.414 0.400 0.5006925279 T3 3/25/2003 3/25/2003 2 0.110 0.060 0.1606925279 T4 3/25/2003 3/25/2003 3 0.470 0.180 0.7086925367 T4 9/25/1997 9/25/1997 1 0.260 0.260 0.2607268301 T3 8/31/1993 9/26/1994 4 0.048 0.030 0.0907310895 T3 9/8/1991 9/8/1991 3 0.050 0.040 0.0607312373 T3 8/1/1991 9/7/1993 4 0.095 0.030 0.1507312377 T3 9/5/1991 9/5/1991 1 0.040 0.040 0.0407626082 T3 1/1/1990 1/1/1990 1 0.090 0.090 0.0907626082 T4 1/1/1990 1/1/2002 3 0.052 0.030 0.0677629032 T4 8/17/1992 5/4/1993 3 0.370 0.210 0.5607703046 T3 5/12/1997 5/12/1997 1 0.480 0.480 0.4807703046 T4 5/11/1997 5/11/1997 1 0.280 0.280 0.2808100063 T3 6/24/1998 9/17/1998 10 0.298 0.100 0.8008100063 T4 6/5/1998 9/17/1998 23 0.421 0.210 0.9608153461 T4 8/21/1995 8/21/1995 1 0.180 0.180 0.1808153799 T3 8/13/1993 8/13/1993 1 0.350 0.350 0.3508153799 T4 7/28/1994 7/28/1994 2 0.150 0.100 0.2008431696 T3 10/12/1995 10/12/1995 1 0.200 0.200 0.2008431696 T4 10/12/1995 10/12/1995 1 0.430 0.430 0.4308653074 T4 7/8/1991 7/8/1991 1 0.050 0.050 0.0508673667 T3 1/1/1999 1/1/1999 1 0.025 0.025 0.0258673667 T4 1/1/1999 1/1/1999 1 0.051 0.051 0.0518692997 T3 1/1/1999 1/1/1999 2 0.029 0.025 0.0338692997 T4 1/1/1999 1/1/1999 1 0.076 0.076 0.0768693827 T3 1/1/1999 1/1/1999 6 0.041 0.015 0.062Attachment 4April 19, 2013Page 4-22Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)8696407 T3 5/8/1991 5/8/1991 1 0.050 0.050 0.0509005799 T3 7/27/1989 5/7/1996 103 0.164 0.030 0.4709005799 T4 7/27/1989 5/7/1996 32 0.282 0.030 0.8309008501 T3 5/12/1993 5/12/1993 10 0.112 0.030 0.2209008501 T4 5/12/1993 5/12/1993 10 0.278 0.160 0.6909071760 T3 7/28/1993 8/2/1993 13 0.488 0.370 0.6009071760 T4 7/28/1993 8/2/1993 14 1.607 0.920 2.6209071840 T3 7/27/1993 1/1/2000 13 0.384 0.280 0.8509071840 T4 7/27/1993 1/1/2001 29 0.948 0.260 1.7709071892 T3 1/1/2000 1/1/2000 2 0.375 0.270 0.4809071892 T4 1/1/2000 1/1/2002 9 0.843 0.280 2.1309168578 T3 1/1/2000 1/1/2002 4 0.983 0.260 2.9009168578 T4 1/1/2000 1/1/2002 3 0.987 0.320 1.6009175258 T3 1/1/2000 1/1/2002 8 0.381 0.270 0.5809175258 T4 1/1/2000 1/1/2002 7 0.876 0.340 1.9009614545 T3 1/1/2000 1/1/2002 31 0.448 0.260 1.0009614545 T4 11/8/1993 1/1/2002 44 1.593 0.480 3.0309614577 T3 11/8/1993 1/1/2002 20 0.558 0.260 1.6109614577 T4 11/8/1993 1/1/2002 34 1.197 0.250 4.3009614581 T3 4/19/1995 1/1/2001 3 0.447 0.410 0.4909614581 T4 4/19/1995 1/1/2001 16 1.159 0.340 2.7809617403 T3 1/1/2001 1/1/2001 10 0.428 0.320 0.7209617403 T4 1/1/2001 1/1/2001 13 0.988 0.400 1.9909619105 T3 1/1/2001 1/1/2001 7 0.334 0.280 0.4509619105 T4 1/1/2001 1/1/2001 10 1.140 0.430 2.8009619127 T3 1/1/2001 1/1/2001 3 0.293 0.250 0.3309619127 T4 1/1/2001 1/1/2001 8 1.136 0.300 2.3009619179 T3 1/1/2000 1/1/2002 17 0.429 0.250 1.0009619179 T4 1/1/2000 1/1/2002 25 0.774 0.290 2.5009619267 T3 1/1/2001 1/1/2001 1 0.430 0.430 0.4309619267 T4 1/1/2001 1/1/2001 11 0.686 0.300 1.610Attachment 4April 19, 2013Page 4-23Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)9643431 T3 1/1/2002 1/1/2002 1 0.350 0.350 0.3509643431 T4 3/9/1994 1/1/2002 19 0.487 0.250 1.7009645687 T4 1/1/2000 1/1/2002 24 0.581 0.280 1.3009660602 T3 1/1/2000 1/1/2002 8 0.376 0.260 0.6509660602 T4 1/1/2000 1/1/2002 19 1.032 0.270 1.9009661944 T3 1/1/2002 1/1/2002 1 0.310 0.310 0.3109661944 T4 1/1/2002 1/1/2002 1 0.320 0.320 0.3209672398 T3 2/24/1994 1/1/2002 8 0.375 0.250 0.7309672398 T4 2/24/1994 1/1/2002 24 0.737 0.250 2.0009681638 T4 1/1/2002 1/1/2002 7 0.557 0.290 0.9409705110 T3 4/7/1994 1/1/2000 5 0.262 0.250 0.2909705110 T4 4/7/1994 1/1/2002 5 0.390 0.250 0.5509718461 T4 1/1/2000 1/1/2000 1 0.290 0.290 0.2909718493 T4 1/1/2000 1/1/2002 8 0.584 0.260 1.2009721701 T3 6/15/1994 6/15/1994 3 0.250 0.250 0.2509721701 T4 6/15/1994 1/1/2001 7 0.303 0.250 0.4609736604 T4 1/1/2002 1/1/2002 1 1.400 1.400 1.4009736646 T3 1/1/2002 1/1/2002 1 0.360 0.360 0.3609736646 T4 1/1/2001 1/1/2002 4 0.328 0.280 0.4209756922 T3 9/11/1990 9/11/1990 5 0.380 0.020 1.8009756922 T4 9/11/1990 9/11/1990 1 0.080 0.080 0.0809867726 T3 1/1/2002 1/1/2002 1 0.260 0.260 0.2609867726 T4 1/1/2000 1/1/2002 8 0.426 0.250 0.8009869412 T4 1/1/2001 1/1/2001 7 0.531 0.290 0.8409869858 T4 1/1/2001 1/1/2001 5 0.814 0.440 1.6009871292 T4 1/1/2001 1/1/2001 1 0.450 0.450 0.45010055726 T3 1/1/1998 1/1/1998 1 0.015 0.015 0.01510067517 T3 6/23/1992 6/23/1992 1 0.030 0.030 0.03010067679 T3 6/25/1992 6/25/1992 1 0.030 0.030 0.03010286212 T3 8/26/1991 9/22/1995 11 0.219 0.050 0.37010286284 T3 8/15/1991 9/21/1995 9 0.218 0.080 0.490Attachment 4April 19, 2013Page 4-24Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)10382121 T3 9/26/1995 9/26/1995 8 0.284 0.180 0.37010382121 T4 9/26/1995 9/26/1995 2 0.370 0.340 0.40010451378 T3 9/6/1990 9/6/1990 1 0.120 0.120 0.12010453358 T3 3/23/1995 3/23/1995 2 0.130 0.110 0.15010453358 T4 3/23/1995 3/23/1995 5 0.506 0.110 1.00010850314 T3 8/25/1992 10/9/1995 80 0.099 0.010 0.28010850314 T4 11/17/1993 5/30/1995 25 0.437 0.130 0.87011617363 T3 9/27/1999 9/27/1999 2 0.055 0.040 0.07011617363 T4 9/27/1999 9/27/1999 4 0.080 0.060 0.10011799705 T4 9/21/1995 9/21/1995 1 0.400 0.400 0.40011802429 T4 8/25/1993 8/25/1993 1 0.410 0.410 0.41011878860 T3 5/12/1993 5/13/1993 6 0.084 0.006 0.16011878860 T4 5/12/1993 5/12/1993 1 0.160 0.160 0.16011916315 T3 8/27/1992 8/29/1995 4 0.268 0.120 0.41011919825 T3 8/27/1991 9/14/1995 2 0.205 0.090 0.32012026640 T4 6/6/1996 6/6/1996 6 0.477 0.260 0.77012035635 T3 1/1/2000 1/1/2000 1 0.270 0.270 0.27012035635 T4 1/1/2001 1/1/2001 1 1.500 1.500 1.50012035729 T4 1/1/2000 1/1/2002 5 0.406 0.290 0.57012049288 T3 1/1/1999 1/1/1999 4 0.026 0.014 0.03912049288 T4 1/1/1999 1/1/1999 1 0.041 0.041 0.04112135514 T3 8/19/1993 8/19/1993 5 0.200 0.160 0.23012135514 T4 7/7/1987 8/19/1993 31 0.426 0.100 0.97012241730 T3 6/27/1991 6/27/1991 10 0.172 0.030 0.26012241730 T4 6/27/1991 6/27/1991 10 0.182 0.120 0.30012262768 T3 7/2/1990 8/12/1994 8 0.148 0.010 0.22012262768 T4 7/2/1990 8/12/1994 3 0.407 0.180 0.81012263226 T3 8/27/1992 8/27/1992 3 0.110 0.100 0.12012263226 T4 8/27/1992 8/27/1992 1 0.120 0.120 0.12012263322 T3 7/18/1990 7/18/1990 15 0.174 0.030 0.46012263322 T4 7/18/1990 7/18/1990 1 0.170 0.170 0.170Attachment 4April 19, 2013Page 4-25Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)12264978 T3 7/18/1991 7/18/1991 2 0.075 0.070 0.08012265010 T3 8/11/1994 8/11/1994 4 0.213 0.150 0.32012265010 T4 8/11/1994 8/11/1994 4 0.368 0.110 0.69012265018 T3 7/3/1990 8/27/1992 5 0.184 0.130 0.26012265018 T4 7/3/1990 8/27/1992 2 0.200 0.110 0.29013211652 T3 7/25/1990 8/16/1995 3 0.123 0.040 0.24013437941 T3 7/6/1990 8/18/1994 7 0.157 0.070 0.30013437941 T4 10/1/1992 8/19/1994 2 0.110 0.070 0.15013438179 T4 7/9/1990 7/9/1990 1 0.150 0.150 0.15013438213 T4 7/10/1990 7/10/1990 1 0.030 0.030 0.03013438377 T4 7/10/1990 7/10/1990 1 0.040 0.040 0.04013634005 T3 4/9/1993 5/13/1993 8 0.129 0.070 0.21013634005 T4 7/22/1991 5/13/1993 29 0.178 0.060 0.52013637489 T3 9/5/1990 9/5/1990 4 0.110 0.100 0.12013637489 T4 9/5/1990 9/26/1990 14 0.323 0.110 0.60013637657 T3 10/12/1993 10/12/1993 1 0.200 0.200 0.20013637657 T4 10/12/1993 10/12/1993 3 0.253 0.170 0.33014190079 T3 6/1/1990 6/1/1990 1 0.050 0.050 0.05014348510 T3 10/3/1995 9/21/1999 6 0.437 0.180 0.76014348510 T4 7/20/2000 7/20/2000 3 0.387 0.180 0.56014363620 T3 9/15/1993 9/15/1993 3 0.047 0.030 0.06014363620 T4 10/4/1993 10/4/1993 1 0.160 0.160 0.16014363660 T3 10/11/1995 10/11/1995 2 0.150 0.140 0.16014363660 T4 10/11/1995 10/11/1995 1 0.140 0.140 0.14014364756 T3 8/11/1999 8/11/1999 1 0.050 0.050 0.05014640421 T3 1/1/1997 1/1/1997 1 0.063 0.063 0.06314640421 T4 1/1/1997 1/1/1997 1 0.140 0.140 0.14014640581 T3 1/1/1997 1/1/1997 3 0.131 0.031 0.30014640581 T4 1/1/1997 1/1/1997 2 0.114 0.077 0.15014641405 T3 6/19/1990 5/17/1993 6 0.123 0.100 0.19014641405 T4 6/18/1991 5/17/1993 3 0.173 0.140 0.230Attachment 4April 19, 2013Page 4-26Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)14642619 T3 10/8/1991 11/10/1993 3 0.140 0.100 0.18014642619 T4 11/12/1993 11/12/1993 1 0.240 0.240 0.24014643271 T3 10/9/1991 11/5/1993 3 0.287 0.240 0.31014643271 T4 11/11/1993 11/23/1993 2 0.710 0.590 0.83014702994 T4 10/10/1993 10/10/1993 9 0.327 0.110 0.66014703132 T3 6/10/1993 6/10/1993 15 0.244 0.080 0.47014703132 T4 6/10/1993 9/8/1994 31 0.375 0.080 0.84014703138 T4 9/25/1991 8/4/1993 16 0.234 0.020 0.40014709872 T4 10/1/1993 10/1/1993 15 0.341 0.120 0.76014732410 T4 8/24/1993 10/5/1993 9 0.309 0.180 0.43014835417 T4 7/9/1991 7/9/1991 1 0.140 0.140 0.14014837903 T4 7/8/1991 7/8/1991 1 0.130 0.130 0.13015075538 T3 8/19/1994 8/19/1994 7 0.264 0.050 0.75015075538 T4 8/19/1994 8/19/1994 4 0.308 0.230 0.49015380191 T3 9/8/1997 9/8/1997 2 0.200 0.180 0.22015384751 T3 1/1/1993 1/1/1993 6 0.108 0.060 0.16015384751 T4 1/1/1993 1/1/1993 2 0.065 0.060 0.07015385463 T3 1/1/1992 1/1/1994 13 0.052 0.010 0.19015385463 T4 1/1/1992 1/1/1994 7 0.059 0.040 0.08015429744 T3 9/1/2004 9/1/2004 2 0.099 0.061 0.13715429766 T3 7/1/2002 7/1/2002 2 0.096 0.066 0.12515429766 T4 7/1/2002 7/1/2002 1 0.175 0.175 0.17515433980 T3 7/1/2002 7/1/2002 1 0.175 0.175 0.17515434032 T3 10/10/2001 10/10/2001 12 0.097 0.027 0.26115434032 T4 10/10/2001 10/10/2001 2 0.074 0.067 0.08115823185 T3 1/1/1991 1/1/1996 40 0.106 0.010 0.32015823185 T4 1/1/1991 6/2/1997 21 0.191 0.010 0.50015823217 T3 10/25/2000 10/26/2000 7 0.185 0.045 0.40215823217 T4 10/29/2000 10/29/2000 3 0.269 0.168 0.37815823319 T3 10/20/1993 10/20/1993 3 0.047 0.020 0.09015823319 T4 12/6/1993 5/22/1997 6 0.162 0.041 0.350Attachment 4April 19, 2013Page 4-27Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)15823591 T3 10/17/1990 11/6/1992 6 0.367 0.100 0.50015823591 T4 10/17/1990 11/6/1992 5 0.420 0.100 0.50015823825 T3 11/3/1993 10/24/1995 8 0.104 0.100 0.13015823825 T4 11/3/1993 10/24/1995 3 0.130 0.100 0.19017219506 T3 9/1/1991 9/24/1995 4 0.145 0.040 0.45017246410 T3 9/4/1991 9/4/1991 1 0.070 0.070 0.07017414772 T3 9/10/1994 9/10/1994 1 0.090 0.090 0.09017556797 T3 9/18/1990 9/18/1990 1 0.090 0.090 0.09018096323 T4 1/1/1994 1/1/1994 2 0.485 0.450 0.52018096343 T3 1/1/1997 1/1/1997 1 0.220 0.220 0.22018096343 T4 1/1/1994 1/1/1997 5 0.330 0.230 0.40018105054 T3 1/1/1994 1/1/1994 1 0.600 0.600 0.60018105054 T4 1/1/1994 1/1/1994 2 0.575 0.540 0.61018106998 T4 1/1/1995 1/1/1996 8 0.799 0.500 1.10018121286 T3 1/1/1995 1/1/1995 2 0.870 0.450 1.29018121286 T4 1/1/1994 1/1/1996 17 1.019 0.580 1.73018122374 T4 1/1/1995 1/1/1995 2 0.865 0.830 0.90018122772 T4 1/1/1995 1/1/1995 1 0.150 0.150 0.15018210868 T3 10/13/1993 10/13/1993 1 0.100 0.100 0.10018210868 T4 10/13/1993 10/13/1993 1 0.240 0.240 0.24018211376 T3 10/24/1991 10/24/1991 2 0.500 0.500 0.50018211376 T4 10/24/1991 10/24/1991 1 0.500 0.500 0.50018215698 T3 10/13/1993 12/2/1997 2 0.125 0.100 0.15018215698 T4 10/13/1993 12/2/1997 2 0.180 0.150 0.21018224417 T3 10/29/1991 10/29/1991 1 0.500 0.500 0.50018224417 T4 10/29/1991 10/29/1991 1 0.500 0.500 0.50018229349 T3 10/29/1991 10/29/1991 1 0.500 0.500 0.50018229349 T4 10/29/1991 10/29/1991 1 0.500 0.500 0.50018229485 T3 12/4/1992 12/4/1992 1 0.100 0.100 0.10018229485 T4 12/4/1992 12/4/1992 1 0.100 0.100 0.10018229843 T3 12/3/1992 12/3/1992 1 0.100 0.100 0.100Attachment 4April 19, 2013Page 4-28Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)18229843 T4 12/3/1992 12/3/1992 1 0.100 0.100 0.10018229873 T3 12/2/1992 12/2/1992 3 0.100 0.100 0.10018229873 T4 12/2/1992 12/2/1992 1 0.100 0.100 0.10018229909 T3 12/2/1992 12/2/1992 1 0.100 0.100 0.10018229909 T4 12/2/1992 12/2/1992 1 0.310 0.310 0.31018471066 T3 9/14/1992 9/29/1995 8 0.291 0.140 0.37018477459 T3 8/20/1991 10/6/1995 9 0.211 0.130 0.43018477459 T4 8/20/1991 8/20/1991 1 0.160 0.160 0.16018519881 T3 10/16/1997 10/16/1997 1 0.100 0.100 0.10018519881 T4 10/16/1997 10/16/1997 1 0.420 0.420 0.42018519935 T3 11/8/1990 11/6/2006 2 0.301 0.102 0.50018519935 T4 11/8/1990 11/6/2006 4 0.587 0.448 0.70018522283 T3 11/14/1990 11/7/2006 10 0.275 0.100 0.50018522283 T4 11/14/1990 11/7/2006 10 0.918 0.195 2.62018524217 T4 11/21/2006 11/21/2006 1 0.100 0.100 0.10018526395 T3 11/7/1990 11/7/1990 3 0.500 0.500 0.50018526395 T4 11/7/1990 11/7/1990 4 0.500 0.500 0.50018540822 T3 10/24/1991 10/24/1991 2 0.500 0.500 0.50018540822 T4 10/24/1991 10/24/1991 1 0.700 0.700 0.70018546622 T3 10/11/2006 10/11/2006 1 0.116 0.116 0.11618546622 T4 10/11/2006 10/11/2006 1 0.100 0.100 0.10018548394 T3 10/21/1993 10/11/2006 3 0.100 0.100 0.10018548394 T4 10/21/1993 10/11/2006 2 0.100 0.100 0.10018548516 T3 10/21/1993 10/12/2006 3 0.100 0.100 0.10018548516 T4 10/21/1993 10/12/2006 2 0.300 0.100 0.50018567449 T3 11/8/1994 11/8/1994 1 0.100 0.100 0.10018567449 T4 11/8/1994 11/8/1994 1 0.330 0.330 0.33018592162 T3 11/8/1994 11/8/1994 1 0.100 0.100 0.10018592162 T4 11/8/1994 11/8/1994 1 0.170 0.170 0.17018822526 T3 10/5/1992 10/1/1993 5 0.160 0.110 0.21019085479 T3 2/22/1991 8/1/2001 28 0.125 0.010 0.530Attachment 4April 19, 2013Page 4-29Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)19085479 T4 2/20/1991 8/1/2001 7 0.211 0.060 0.36019221041 T3 1/1/1994 1/1/1994 1 0.150 0.150 0.15019221041 T4 1/1/1994 1/1/1994 1 0.670 0.670 0.67019314268 T3 10/1/1996 10/1/1996 1 0.150 0.150 0.15019314276 T3 8/21/2002 4/21/2003 6 0.033 0.018 0.09819314276 T4 8/21/2002 4/21/2003 5 0.081 0.018 0.11819315482 T3 9/15/1994 9/15/1994 1 0.200 0.200 0.20019315482 T4 9/15/1994 9/15/1994 1 0.200 0.200 0.20019440411 T3 7/17/1997 7/17/1997 4 0.063 0.020 0.10019440411 T4 7/17/1997 7/17/1997 1 0.080 0.080 0.08019440417 T3 9/9/1996 9/9/1996 2 0.144 0.091 0.19619440427 T3 7/1/2002 7/1/2002 2 0.103 0.052 0.15419440431 T3 9/9/1996 9/1/2003 21 0.126 0.047 0.22819440431 T4 9/9/1996 9/1/2003 7 0.129 0.079 0.25219443001 T3 7/1/2002 7/1/2002 2 0.129 0.122 0.13519443001 T4 7/1/2002 7/1/2002 1 0.118 0.118 0.11819453173 T3 7/1/2002 7/1/2002 1 0.151 0.151 0.15119453173 T4 7/1/2002 7/1/2002 2 0.135 0.110 0.15919453185 T3 1/1/1998 1/1/1998 3 0.130 0.126 0.13319453185 T4 1/1/1998 1/1/1998 1 0.139 0.139 0.13919455327 T3 1/1/1995 1/1/1995 5 0.118 0.040 0.22019455327 T4 1/1/1995 1/1/1995 5 0.154 0.030 0.23019464262 T3 9/22/1994 10/4/1995 3 0.113 0.070 0.15019464300 T3 8/29/1995 8/29/1995 1 0.070 0.070 0.07019621672 T4 10/31/1991 10/31/1991 1 0.500 0.500 0.50019623798 T3 10/29/1991 10/29/1991 1 0.190 0.190 0.19019626208 T3 9/24/1992 9/30/1993 2 0.100 0.100 0.10019646610 T4 9/24/1991 9/24/1991 1 0.500 0.500 0.50019696569 T3 12/9/1990 12/9/1990 1 0.100 0.100 0.10019696763 T3 10/25/1991 10/21/1992 2 0.100 0.100 0.10019918046 T3 7/26/1994 7/26/1994 8 0.036 0.010 0.060Attachment 4April 19, 2013Page 4-30Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)19918046 T4 7/26/1994 7/26/1994 3 0.123 0.060 0.24020969532 T3 10/5/1990 10/16/1991 2 0.100 0.100 0.10020969532 T4 10/5/1990 10/16/1991 2 0.175 0.120 0.23021642184 T3 11/1/2006 11/1/2006 1 0.141 0.141 0.14121642184 T4 11/1/2006 11/1/2006 1 0.522 0.522 0.52221642344 T3 11/14/1990 11/1/2006 9 0.228 0.100 0.50021642344 T4 11/14/1990 11/1/2006 10 0.438 0.100 0.69721687206 T3 10/3/1991 10/3/1991 1 0.500 0.500 0.50021687206 T4 10/3/1991 10/3/1991 1 0.500 0.500 0.50021687488 T3 10/1/1991 10/1/1991 1 0.500 0.500 0.50021687488 T4 10/1/1991 10/1/1991 1 0.500 0.500 0.50021688838 T3 11/17/1993 11/17/1993 2 0.100 0.100 0.10021688838 T4 11/17/1993 11/17/1993 1 0.130 0.130 0.13021773149 T3 7/12/1991 7/12/1991 6 0.103 0.100 0.12021773149 T4 7/12/1991 7/12/1991 1 0.100 0.100 0.10021980005 T4 7/23/2002 7/23/2002 11 0.464 0.230 0.70022125748 T3 10/17/1990 10/17/1990 1 0.210 0.210 0.21022133925 T3 10/23/1990 10/23/1990 1 0.140 0.140 0.14022142502 T3 7/26/1990 7/26/1990 2 0.130 0.100 0.16022142502 T4 7/26/1990 7/26/1990 1 0.260 0.260 0.26022144632 T3 1/10/1992 1/10/1992 2 0.175 0.170 0.18022162094 T3 9/14/1990 9/14/1990 5 0.082 0.040 0.15022162094 T4 9/14/1990 9/14/1990 2 0.235 0.220 0.25022162876 T3 7/9/1991 6/24/1993 5 0.186 0.100 0.24022162876 T4 7/14/1993 7/14/1993 2 0.350 0.190 0.51022180294 T3 11/7/1991 12/8/1992 2 0.350 0.290 0.41022180294 T4 10/28/1993 10/28/1993 2 0.340 0.240 0.44022199717 T3 12/1/1992 12/1/1992 2 0.135 0.100 0.17022199717 T4 12/1/1992 12/1/1992 1 0.160 0.160 0.16022273562 T3 11/6/1991 11/3/1992 2 0.300 0.100 0.50022273562 T4 11/6/1991 11/3/1992 2 0.340 0.180 0.500Attachment 4April 19, 2013Page 4-31Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)22276352 T3 11/6/1991 11/3/1992 3 0.233 0.100 0.50022276352 T4 11/6/1991 11/3/1992 3 0.253 0.100 0.50022276470 T3 10/15/1991 10/15/1991 2 0.500 0.500 0.50022276470 T4 10/15/1991 10/15/1991 1 0.500 0.500 0.50022276502 T3 10/15/1991 10/15/1991 2 0.500 0.500 0.50022276502 T4 10/15/1991 10/15/1991 1 0.500 0.500 0.50022276622 T3 9/17/1991 10/13/1992 4 0.313 0.100 0.50022276622 T4 9/17/1991 10/13/1992 5 0.296 0.100 0.50022340547 T3 10/1/1991 9/20/1994 7 0.076 0.050 0.11022340547 T4 10/10/1991 9/20/1993 2 0.240 0.030 0.45022340577 T3 7/31/1991 9/19/1994 9 0.061 0.040 0.10022340577 T4 7/31/1991 9/25/1994 4 0.125 0.080 0.16022798749 T3 11/20/1990 10/5/1992 11 0.043 0.006 0.15022798749 T4 11/20/1990 11/15/1991 10 0.118 0.030 0.22024601391 T3 10/13/1994 3/22/2000 11 0.136 0.050 0.35024601391 T4 10/13/1994 3/22/2000 14 0.490 0.190 1.20224750511 T3 9/10/1990 8/2/2001 15 0.075 0.009 0.21024945757 T3 10/26/1993 10/26/1993 2 0.125 0.080 0.17024968800 T3 1/1/1997 1/1/1997 2 0.070 0.029 0.11024968800 T4 1/1/1997 1/1/1997 1 0.210 0.210 0.21025189323 T3 8/24/1993 8/24/1993 1 0.260 0.260 0.26025189323 T4 9/14/1995 9/14/1995 1 0.730 0.730 0.73025308910 T3 10/25/1990 10/25/1990 3 0.100 0.100 0.10025309336 T3 11/6/1990 11/6/1990 1 0.100 0.100 0.10025732008 T3 4/1/1991 3/3/1994 13 0.066 0.004 0.14025732008 T4 3/28/1991 6/12/1991 4 0.090 0.020 0.13026129469 T3 1/1/2000 1/1/2001 3 0.630 0.280 1.30026129469 T4 1/1/2000 1/1/2002 9 0.516 0.290 1.47026132687 T3 11/23/1992 11/23/1992 3 0.100 0.100 0.10026132687 T4 11/23/1992 11/23/1992 1 0.100 0.100 0.10026132733 T3 11/20/1992 11/2/1995 6 0.133 0.100 0.290Attachment 4April 19, 2013Page 4-32Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)26132733 T4 11/20/1992 11/2/1995 2 0.100 0.100 0.10026132735 T3 10/24/1994 10/24/1994 1 0.100 0.100 0.10026132735 T4 10/24/1994 10/24/1994 1 0.100 0.100 0.10026132759 T3 10/24/1994 10/24/1994 1 0.100 0.100 0.10026132759 T4 10/24/1994 10/24/1994 1 0.100 0.100 0.10026132777 T3 11/1/1995 11/1/1995 2 0.100 0.100 0.10026132777 T4 11/1/1995 11/1/1995 1 0.110 0.110 0.11026132779 T3 11/1/1995 11/1/1995 2 0.100 0.100 0.10026132779 T4 11/1/1995 11/1/1995 1 0.100 0.100 0.10026132807 T3 11/20/1992 11/1/1995 6 0.100 0.100 0.10026132807 T4 11/20/1992 11/1/1995 2 0.110 0.100 0.12026132877 T3 11/18/1992 11/18/1992 3 0.100 0.100 0.10026132877 T4 11/18/1992 11/18/1992 1 0.200 0.200 0.20026132921 T3 11/18/1992 11/18/1992 2 0.100 0.100 0.10026132921 T4 11/18/1992 11/18/1992 1 0.100 0.100 0.10026408394 T3 10/24/1993 10/24/1993 2 0.230 0.190 0.27026408394 T4 10/24/1993 10/24/1993 1 0.080 0.080 0.08026408398 T4 10/24/1993 10/24/1993 1 0.070 0.070 0.07026408400 T4 11/19/1993 10/26/1997 11 0.294 0.060 1.11026408402 T4 10/26/1993 8/26/1998 4 0.515 0.260 0.96028123868 T3 1/1/1992 1/1/1992 12 0.086 0.040 0.17028123868 T4 1/1/1992 1/1/1992 3 0.177 0.100 0.22028123876 T3 1/1/1992 1/1/1995 10 0.279 0.050 0.76028123876 T4 1/1/1992 1/1/1995 11 0.245 0.120 0.44030726982 T3 6/9/1987 6/10/1994 39 0.095 0.010 0.21030726982 T4 6/9/1987 6/9/1987 7 0.309 0.250 0.350901990016 T3 1/1/2000 1/1/2002 10 0.983 0.280 4.490901990016 T4 1/1/2000 1/1/2002 15 0.645 0.270 1.240901990078 T3 1/1/2001 1/1/2002 6 0.542 0.310 0.940901990078 T4 1/1/2000 1/1/2001 12 0.567 0.260 1.300902000025 T3 1/1/2001 1/1/2001 1 0.290 0.290 0.290Attachment 4April 19, 2013Page 4-33Table 4-3. Summary of River-specific MercuryFish Tissue Concentration Sampling DataCOMIDTrophic LevelSample DateMinimumSample DateMaximumNumber ofSamplesAverage FishTissueConcentration(mg/kg)Minimum FishTissueConcentration(mg/kg)MaximumFish TissueConcentration(mg/kg)902000025 T4 1/1/2000 1/1/2002 13 0.462 0.250 1.220902220012 T3 10/9/1993 11/23/1994 6 0.083 0.040 0.180902220012 T4 10/7/1993 11/23/1994 6 0.111 0.050 0.180902770057 T3 11/4/1993 10/11/1995 6 0.138 0.080 0.240902770057 T4 11/4/1993 12/10/1993 3 0.183 0.130 0.250Source: 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 Fa ctors 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.