11/9/12 page of 

### STANDARD REVIEW EXPOSURE REPORT **This assessment is based on CEB Staff Draft dated 10/2/2012. Chemical ID: P** **- 12**  **- 0539 Reviewer: Kwon/SS** 

**Results Table: Dose, Concentration, and Days Exceeded Resu lts**  **Summary** Exposure Scenario 1 Water Landfill Stack Air Fugitive Air Drinking Water Fish Ingestion ADR LADD ADR LADD 7Q104 CC = 1 PDM Days Exceeded LADD ADR LADD ADR LADD

Release activity(ies) 2 ; exposure calculation(s) 3 mg/kg/day mg/kg/day mg/kg/day mg/kg/day μg/l # Days mg/kg/day mg/kg/day mg/kg/day mg/kg/day mg/kg/day

MFG: Max ADR, max acute eco **0.36 ---**  **1.42 ---**  **7393.72 ---**  **--- 0.50**  **--- ---**  **---** MFG: Max LADD **--- 1.69E**  **- 05**  **--- 7.24E**  **- 05**  **--- ---**  **1.61E -**  **04 ---**  **3.53E -**  **04 ---**  **---** PROC: Max ADR, max acute eco **3.27E -**  **02 ---**  **0.24 ---**  **670.10 ---**  **--- 8.09E**  **- 02**  **--- 3.51E**  **- 03** 

**---** PROC: PDM **--- ---**  **--- --**  **180.41 120**  **--- ---**  **--- ---**  **---** PROC: Max LADD **--- 9.27E**  **- 05**  **--- 3.97E**  **- 04**  **--- ---**  **7.08E -**  **04 ---**  **9.19E -**  **04 ---**  **3.70E -**  **05** USE1: Max ADR, PDM1 **4.53E -**  **02 ---**  **0.19 ---**  **96 3.64**  **219 ---**  **2.76E -**  **02 ---**  **3.31E -**  **02 ---**  USE1: PDM2 **--- ---**  **--- ---**  **928.03 247**  **--- ---**  **--- ---**  **---** USE1: Max LADD **--- 5.63E**  **- 04**  **--- 2.41E**  **- 03**  **--- ---**  **1.15E -**  **03 ---**  **1.50E -**  **03 ---**  **7.07E -**  **04** USE2: Max ADR, max acute eco **6.95E -**  **02 ---**  **0.50 ---**  **1424.74 ---**  **--- 8.64E**  **- 02**  **--- 1.05E**  **- 02** 

**---** USE2: PDM **--- ---**  **--- ---**  **935.05 250**  **--- ---**  **--- ---**  **---** USE2: Max LADD **--- 9.82E**  **- 04**  **--- 4.21E**  **- 03**  **--- ---**  **3.85E -**  **03 ---**  **2.19E -**  **03 ---**  **2.30E -**  **04** 1 Exposure scenario titles consist of release activity followed by exposure calculation abbreviation. 2 Release activities are from engineering report's Manufacturing (Mfg), Processing (Proc) and Use release activity labels. Multiple release activities are combined in one exposure scenario if their releases occur at same location. 3 Exposure cal culations are Acute Dose Rate (ADR), Lifetime Average Daily Dose (LADD), and Probabilistic Dilution Model (PDM). There may be one, two, or all three exposure calculations per exposure scenario. CC is the aquatic concentration of concern. 4 This column displays concentration values for the 7Q10 streamflow, which is defined as the average daily streamflow of the seven consecutive days of lowest flow within a ten year period.11/9/12 page of

Remarks: Results Table: Consumer Exposure Results Summary

Scenario Water (DtD) Dermal Inhalation

Drinking Water Fish Ingestion 7Q10 PDM Days Exceeded ADR LADD ADR LADD ADR LADD ADR LADD mg/kg/day mg/kg/day mg/kg/day mg/kg/day μg/l # Days mg/kg/day mg/kg/day mg/kg/day mg/kg/day CEM 1 : Used Motor Oil (dermal) --- --- --- --- --- --- **2.46E+01 2.05E**  **- 01**  --- --- 1 Consumer Exposure Module within NCEM2 model.



### Results Table: Exposure Based (XB)/Persistent (P2B2) Criteria Parameter Exp Based Persistent Exceedance Value Drinking (Surface) Water Dose (mg/kg/day) No No Fish Ingestion Dose (mg/kg/day) Yes Yes **4.21E -**  **03** Inhalation Dose (mg/kg/day) No No Groundwater Dose (mg/kg/day) Yes Yes **3.85E -**  **03** Surface Water Release After Treatment (kg/yr) Yes NA **55,838.528** Total Release After Treatment (kg/yr) Yes NA **548,417.97** Consumer Use? Yes NA **2.05E -**  **01**



### Fate test recommendations?: (default is NA) 111/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENTAL RELEASES Scenario#: 1 Number of Release Sites: 1. Release Activity: MFG: Max ADR, max acute eco Release Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Releases: 400.00 0.00 407.20 0.00 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/Sludge Release Days/yr: 1.00 0.00/0.00 1.00 0.00 Per Site Release: 400.00 0.00/0.00 407.20 0.00 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 1 Number of Sites: 1 RELEASE ACTIVITY: MFG: Max ADR, max acute eco SIC - CODE DESCRIPTION: Organic Chemicals Manufacture SIC - CODE (S): 2865,2869 EXPOSED POPULATION: Adult WWT REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 1. 400. 40.00 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 2825.61 935.49 634.16 514.20 14.16 42.76 63.08 77.79 ALL 10 50.57 9.38 5.41 4.53 790.98 4264.39 7393.72 8830.02

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 3.02E - 07 1.69E - 05 mg/kg/day 1.30E - 06 7.24E - 05 mg/kg/day LADCpot 1.55E - 05 8.67E - 04 mg/L 1.55E - 02 0.87 mg/kg Acute ADR pot 3.57E - 03 0.36 mg/kg/day 2.54E - 02 1.42 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539INHALATION EXPOSURE ESTIMATES (POST - TREATMENT) SCENARIO # : 1 RELEASE ACTIVITY: MFG: Max ADR, max acute eco RELEASE DESCRIPTION: METHOD OF CALCULATION: Screen3 EXPOSED POPULATION: Adult Number of Sites: 1. Per Site Fugitive Release: NA kg/site/day Fugitive Release Days per Year: NA days % Removal via Fugitive Release: 0.00 % Total Fugitive Release: NA kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μ g/m3 Max 24 Hour Average Air Concentration(Fugitive): 0.00 μ g/m3 Per Site Stack Release: 407.20 kg/site/day Stack Release Days per Year: 1.00 days % Removal via Stack Release: 0.00 % Total Stack Release: 407.20 kg/yr Max Annual Average Air Concentration (Stack): 1.50 μ g/m3 Max 24 Hour Average Air Concentration (Stack): 2740.00 μ g/m3

Exposure Units Results (Stack) Results

(Fugitive) ASSUMPTIONS

ED (years) AT

(years) BW

(kg) Inh. Rate

(m3 /hr) Cancer LADD pot (mg/kg/day) 1.10E - 04 N/A 30.00 75.00 71.80 0.55 LADCpot (mg/m3 ) 6.00E - 04 N/A 30.00 75.00 NA NA Acute ADR pot (mg/kg/day) 0.50 N/A NA 1 day 71.80 0.55 Inhalation C omments:11/9/12 page of

Stack Parameter Data Fugitive Parameter Data Stack Height 10.00 m Release Height: N/A Inside Stack Diameter: 0.10 m Length of Release Opening: N/A Stack Gas Exit Velocity: 0 .10 m/sec Width of Release Opening: N/A Stack Gas Tem perature: 293.00 K

Meteorological and Terrain Information: Surrounding Land Use: Rural Terrain Height: 0.00 m Distance to Residence of Interest: 100.00 m Meteorological Class: Full Stability Class: NA Wind Speed: NA Downwash Information: Facility Length: NA m Facility Width: NA m Facility Height: NA m11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENTAL RELEASES Scenario#: 2 Number of Release Sites: 1. Release Activity: MFG: Max LADD Release Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Releases: 400.00 775.00 1300.00 0.00 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/Sludge Release Days/yr: 1.00 1.00/0.00 1.00 0.00 Per Site Release: 400.00 775.00/0.00 1300.00 0.00 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 2 Number of Sites: 1 RELEASE ACTIVITY: MFG: Max LADD SIC - CODE DESCRIPTION: Organic Chemicals Manufacture SIC - CODE (S): 2865,2869 EXPOSED POPULATION: Adult WWT REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 1. 400. 40.00 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM C ONC. (μg/l)

Harmonic Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 2825.61 935.49 634.16 514.20 14.16 42.76 63.08 77.79 ALL 10 50.57 9.38 5.41 4.53 790.98 4264.39 7393.72 8830.02

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 3.02E - 07 1.69E - 05 mg/kg/day 1.30E - 06 7.24E - 05 mg/kg/day LADCpot 1.55E - 05 8.67E - 04 mg/L 1.55E - 02 0.87 mg/kg Acute ADR pot 3.57E - 03 0.36 mg/kg/day 2.54E - 02 1.42 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID: P - 12 - 0539

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES SCENARIO #: 2 ACTIVITY: MFG: Max LADD RELEASE DESCRIPTION : EXPOSED POPULATION: Adult

NUMBER OF SITES NON - SLUDGE

LANDFILL RELEASE AND DAYS OF RELEASE (kg/site/day)/(days) LANDFILLED SLUDGE 1 AND DAYS OF RELEASE (kg/site/day)/(days) MIGRATION

DESCRIPTOR2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING

WAT ER TREATMENT (%) 1. 775.00/1.00 0.00/0.00 Slow 0.00 0.00

1 Landfilled sludge equals the fraction adsorbed to wastewater treatment sludge times the surface water pre -treatment release. 2 Migration Descriptor Log Koc Groundwater Concentration (GWC) (mg/L per kg release) Negligible no migration None Negligible to slow > 4.5 3.21E - 6 Slow <4.5 to 3.5 2.67E - 5 Moderate <3.5 to 2.5 5.95E - 5 Rapid <2.5 7.55E - 5

Exposure Units Results ASSUMPTIONS ED (years) AT

(years) BW

(kg) IR

(L/day) Cancer LADD pot (mg/kg/day) 1.61E - 04 30.00 75.00 71.80 1.40 LADCpot (mg/L) 8.28E - 03 30.00 75.00 NA NA REMARKS:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539INHALATION EXPOSURE ESTIMATES (POST - TREATMENT) SCENARIO #: 2 RELEASE ACTIVITY: MFG: Max LADD RELEASE DESCRIPTION: METHOD OF CALCULATION: Screen3 EXPOSED POPULATION: Adult Number of Sites: 1. Per Site Fugitive Release: NA kg/site/day Fugitive Release Days per Year: NA days % Removal via Fugitive Release: 0.00 % Total Fugitive Release: NA kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μ g/m3 Max 24 Hour Average Air Concentrati on(Fugitive): 0.00 μ g/m3 Per Site Stack Release: 1300.00 kg/site/day Stack Release Days per Year: 1.00 days % Removal via Stack Release: 0.00 % Total Stack Release: 1300.00 kg/yr Max Annual Average Air Concentration (Stack): 4.80 μ g/m3 Max 24 Hour Average Air Concentration (Stack): 8760.00 μ g/m3

Exposure Units Results (Stack) Results

(Fugitive) ASSUMPTIONS

ED (years) AT

(years) BW

(kg) Inh. Rate

(m3 /hr) Cancer LADD pot (mg/kg/day) 3.53E - 04 N/A 30.00 75.00 71.80 0.55 LADCpot (mg/m3 ) 1.92E - 03 N/A 30.00 75.00 NA NA Acute ADR pot (mg/kg/day) 1.61 N/A NA 1 day 71.80 0.55 Inhalation Comments:11/9/12 page of

Stack Parameter Data Fugitive Parameter Data Stack Height 10.00 m Release Height: N/A Inside Stack Diameter: 0.10 m Length of Release Opening: N/A Stack Gas Exit Velocity: 0.10 m/sec Width of Release Opening: N/A Stack Gas Tem perature: 293.00 K

Meteorological and Terrain Information: Surrounding Land Use: Rural Terrain Height: 0.00 m Distance to Residence of Interest: 100.00 m Meteorological Class: Full Stability Class: NA Wind Speed: NA Downwash Information: Facility Length: NA m Facility Width: NA m Facility Height: NA m11/9/12 page of INITIAL REVIEW EXPOS URE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENTAL RELEASES Scenario#: 3 Number of Release Sites: 6. Release Activity: PROC: Max ADR, max acute eco Release Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Releases: 312.00 0.00 396.00 100.80 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/Sludge Release Days/yr: 1.00 0.00/0.00 1.00 120.00 Per Site Release: 52.00 0.00/0.00 66.00 0.14 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 3 Number of Sites: 6 RELEASE ACTIVITY: PROC: Max ADR, max acute eco SI C - CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.) SIC - CODE (S): Subset of 4952 EXPOSED POPULATION: Adult WWT REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 1. 52. 5.20 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 288.00 123.84 78.18 66.05 18.06 41.99 66.51 78.73 ALL 10 39.60 13.29 7.76 7.57 131.31 391.27 670.10 686.92

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMAT ES Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 3.86E - 07 2.81E - 06 mg/kg/day 1.65E - 06 1.20E - 05 mg/kg/day LADCpot 1.98E - 05 1.44E - 04 mg/L 1.98E - 02 0.14 mg/kg Acute ADR pot 3.51E - 03 3.27E - 02 mg/kg/day 3.24E - 02 0.24 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539INHALATION EXPOSURE ESTIMATES (POST - TREATMENT) SCENARIO #: 3 RELEASE ACTIVITY: PROC: Max ADR, max acute eco RELEASE DESCRIPTION: METHOD OF CALCULATION: Screen3 EXPOSED POPULATION: Adult Number of Sites: 6. Per Site Fugitive Release: 0.14 kg/site/day Fugitive Release Days per Year: 120.00 days % Removal via Fugitive Release: 0.00 % Total Fugitive Release: 100.80 kg/yr Max Annual Average Air Concentration (Fugitive): 0.50 μ g/m3 Max 24 Hour Average Air Concentration(Fugitive): 19.10 μ g/m3 Per Site Stack Release: 66.00 kg/site/day Stack Release Days per Year: 1.00 days % Removal via Stack Re lease: 0.00 % Total Stack Release: 396.00 kg/yr Max Annual Average Air Concentration (Stack): 0.24 μ g/m3 Max 24 Hour Average Air Concentration (Stack): 440.00 μ g/m3

Exposure Units Results (Stack) Results

(Fugitive) ASSUMPTIONS

ED (years) AT

(years) BW

(kg) Inh. Rate

(m3 /hr) Cancer LADD pot (mg/kg/day) 1.79E - 05 3.70E - 05 30.00 75.00 71.80 0.55 LADCpot (mg/m3 ) 9.76E - 05 2.01E - 04 30.00 75.00 NA NA Acute ADR pot (mg/kg/day) 8.09E - 02 3.51E - 03 NA 1 day 71.80 0.55 Inhalation Comments:11/9/12 page of

Stack Parameter Data Fugitive Parameter Data Stack Height 10.00 m Release Height: 3.00 m Inside Stack Diameter: 0.10 m Length of Release Opening: 10.00 m Stack Gas Exit Velocity: 0.10 m/sec Width of Release Opening: 10.00 m Stack Gas Tem perature: 293.00 K

Meteorological and Terrain Information: Surrounding Land Use: Rural Terrain Height: 0.00 m Distance to Residence of Interest: 100.00 m Meteorological Class: Full Stability Class: NA Wind Speed: NA Downwash Information: Facility Length: NA m Facility Width: NA m Facility Height: NA m11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENTAL RELEASES Scenario#: 4 Number of Release Sites: 6. Release Activity: PROC: PDM Release Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Releases: 1.01E+04 0.00 0.00 0.00 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/Sludge Release Days/yr: 120 .00 0.00/0.00 0.00 0.00 Per Site Release: 14.00 0.00/0.00 0.00 0.00 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 4 Number of Sites: 6 RELEASE ACTIVITY: PROC: PDM SIC - CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.) SIC - CODE (S): Subset of 4952 EXPOSED POPULATION: Adult WWT REMOVAL ( %) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 120. 14. 1.40 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. ( μg/l)

Harmonic Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 288.00 123.84 78.18 66.05 4.86 11.30 17.91 21.20 ALL 10 39.60 13.29 7.76 7.57 35.35 105.34 180.41 184.94

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 1.25E - 05 9.07E - 05 mg/kg/day 5.34E - 05 3.89E - 04 mg/kg/day LADCpot 6.39E - 04 4.65E - 03 mg/L 0.64 4.65 mg/kg Acute ADR pot 9.45 E - 04 8.80E - 03 mg/kg/day 8.73E - 03 6.35E - 02 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC CODE EXPOSURES TO SURFACE WATER RELEASES SCENARIO # : 4 RELEASE ACTIVITY: PROC: PDM SIC CODE DESCRIPTI ON: POTW (Indust., includes POTWs which receive ind. disch.) ASSOCIATED SIC CODES: Subset of 4952 SIC CODE RESULTS COC (μg/L) Percent of

Year COC Exceeded Number of

Days COC Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis 1.00 33 120 120.00 14.00 90.00 High11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENTAL RELEASES Scenario#: 5 Number of Release Sites: 6. Release Activity: PROC: Max LADD Relea se Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Releases: 1.03E+04 2.04E+04 2.04E+04 100.80 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/Sludge Release Days/yr: 1.00 1.00/0.00 1.00 1.00 Per Site Release : 1718.00 3398.00/0.00 3398.00 16.80 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 5 Number of Sites: 6 RELEASE ACTIVITY: PROC: Max LADD SIC - CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.) SIC - CODE (S): Subset of 4952 EXPOSED POPULATION: Adult WWT REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 1. 1718. 171.80 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic Mean 30Q5 7Q1 0 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 288.00 123.84 78.18 66.05 596.53 1387.27 2197.49 2601.06 ALL 10 39.60 13.29 7.76 7.57 4338.38 1.29E+04 2.21E+04 2.27E+04

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 1.27E - 05 9.27E - 05 mg/kg/day 5.46E - 05 3.97E - 04 mg/kg/day LADCpot 6.54E - 04 4.75E - 03 mg/L 0.65 4.75 mg/kg Acute ADR pot 0.12 1.08 mg/kg/day 1 .07 7.79 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID: P - 12 - 0539

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES SCENARIO #: 5 ACTIVITY: PROC: Max LADD RELEASE DESCRIPTION: EXPOSED POPULATION: Adult

NUMB ER OF SITES NON - SLUDGE

LANDFILL RELEASE AND DAYS OF RELEASE (kg/site/day)/(days) LANDFILLED SLUDGE 1 AND DAYS OF RELEASE (kg/site/day)/(days) MIGRATION

DESCRIPTOR2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING

WATER TREATMENT (%) 6. 3398.00/ 1.00 0.00/0.00 Slow 0.00 0.00

1 Landfilled sludge equals the fraction adsorbed to wastewater treatment sludge times the surface water pre -treatment release. 2 Migration Descriptor Log Koc Groundwater Concentration (GWC) (mg/L per kg release) Negligible no migration None Negligible to slow > 4.5 3.21E - 6 Slow <4.5 to 3.5 2.67E - 5 Moderate <3.5 to 2.5 5.95E - 5 Rapid <2.5 7.55E - 5

Exposure Units Results ASSUMPTIONS ED (years) AT

(years) BW

(kg) IR

(L/day) Cancer LADD pot (mg/kg/day) 7.08E - 04 30.00 75.00 71.80 1.40 LADCpot (mg/L) 3.63E - 02 30.00 75.00 NA NA REMARKS:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539INHALATION EXPOSURE ESTIMATES (POST - TREATMENT) SCENARIO #: 5 RELEASE ACTIVITY: PROC: Max LADD RELEASE DESCRIPTION: METHOD OF CALCULATION: Screen3 EXPOSED POPULATION: Adult Number of Sites: 6. Per Site Fugitive Release: 16.80 kg/ site/day Fugitive Release Days per Year: 1.00 days % Removal via Fugitive Release: 0.00 % Total Fugitive Release: 100.80 kg/yr Max Annual Average Air Concentration (Fugitive): 0.50 μ g/m3 Max 24 Hour Average Air Concentration(Fugitive): 2300.00 μ g/m3 Per Site Stack Release: 3398.00 kg/site/day Stack Release Days per Year: 1.00 days % Removal via Stack Release: 0.00 % Total Stack Release: 2.04E+04 kg/yr Max Annual Average Air Concentration (Stack): 12.50 μ g/m3 Max 24 Hour Average Air Concentration (Stack): 2.29E+04 μ g/m3

Exposure Units Results (Stack) Results

(Fugitive) ASSUMPTIONS

ED (years) AT

(years) BW

(kg) Inh. Rate

(m3 /hr) Cancer LADD pot (mg/kg/day) 9.19E - 04 3.70E - 05 30.00 75.00 71.80 0.55 LADCpot (mg/m3 ) 5.00E - 03 2.01E - 04 30.00 75.00 NA NA Acute ADR pot (mg/kg/day) 4.21 0.42 NA 1 day 71.80 0.55 Inhalation Comments:11/9/12 page of

Stack Parameter Data Fugitive Parameter Data Stack Height 10.00 m Release Height: 3.00 m Insi de Stack Diameter: 0.10 m Length of Release Opening: 10.00 m Stack Gas Exit Velocity: 0.10 m/sec Width of Release Opening: 10.00 m Stack Gas Tem perature: 293.00 K

Meteorological and Terrain Information: Surrounding Land Use: Rural Terrain He ight: 0.00 m Distance to Residence of Interest: 100.00 m Meteorological Class: Full Stability Class: NA Wind Speed: NA Downwash Information: Facility Length: NA m Facility Width: NA m Facility Height: NA m11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENTAL RELEASES Scenario#: 6 Number of Release Sites: 73. Release Activity: USE1: Max ADR, PDM1 Release Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Rele ases: 4.07E+05 0.00 3.60E+05 2.34E+04 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/Sludge Release Days/yr: 219.00 0.00/0.00 219.00 247.00 Per Site Release: 25.44 0.00/0.00 22.54 1.30 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 6 Number of Sites: 73 RELEASE ACTIVITY: USE1: Max ADR, PDM1 SIC - CODE DESC RIPTION: Metal Finishing SIC - CODE (S): 34xx - 39xx EXPOSED POPULATION: Adult WWT REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 219. 25.44 2.54 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 300.46 107.45 67.50 55.59 8.47 23.68 37.69 45.76 ALL 10 23.74 4.69 2.64 2.27 107.16 542.43 963.64 1120.70

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 3.96E - 05 5.01E - 04 mg/kg/day 1.70E - 04 2.15E - 03 mg/kg/day LADCpot 2.03E - 03 2.57E - 02 mg/L 2.03 25.72 mg/kg Acute ADR pot 1.98E - 03 4.53E - 02 mg/kg/day 1.52E - 02 0.19 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC CO DE EXPOSURES TO SURFACE WATER RELEASES SCENARIO # : 6 RELEASE ACTIVITY: USE1: Max ADR, PDM1 SIC CODE DESCRIPTION: Metal Finishing ASSOCIATED SIC CODES: 34xx - 39xx SIC CODE RESULTS COC (μg/L) Percent of

Year COC Exceeded Number of

Days COC Exceeded Re lease

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis 1.00 60 219 219.00 25.44 90.00 High11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539INHALATION EXPOSURE ESTIMATES (POST - TREATMENT) SCENARIO #: 6 RELEASE ACTIVITY: USE1: Max ADR, PDM1 RELEASE DESCRIPTION: METHOD OF CALCULATION: Screen3 EXPOSED POPULATION: Adult Number of Sites: 73. Per Site Fugitive Release: 1.30 kg/site/day Fugitive Release Days per Year: 247.00 days % Removal via Fugitive Release : 0.00 % Total Fugitive Release: 2.34E+04 kg/yr Max Annual Average Air Concentration (Fugitive): 9.62 μ g/m3 Max 24 Hour Average Air Concentration(Fugitive): 180.00 μ g/m3 Per Site Stack Release: 22.54 kg/site/day Stack Release Days per Year: 219.00 day s % Removal via Stack Release: 0.00 % Total Stack Release: 3.60E+05 kg/yr Max Annual Average Air Concentration (Stack): 18.20 μ g/m3 Max 24 Hour Average Air Concentration (Stack): 150.00 μ g/m3

Exposure Units Results (Stack) Results

(Fugitive) ASS UMPTIONS

ED (years) AT

(years) BW

(kg) Inh. Rate

(m3 /hr) Cancer LADD pot (mg/kg/day) 1.34E - 03 7.07E - 04 30.00 75.00 71.80 0.55 LADCpot (mg/m3 ) 7.28E - 03 3.85E - 03 30.00 75.00 NA NA Acute ADR pot (mg/kg/day) 2.76E - 02 3.31E - 02 NA 1 day 71.80 0.55 Inhal ation Comments:11/9/12 page of

Stack Parameter Data Fugitive Parameter Data Stack Height 10.00 m Release Height: 3.00 m Inside Stack Diameter: 0.10 m Length of Release Opening: 10.00 m Stack Gas Exit Velocity: 0.10 m/sec Width of Release Opening: 10.00 m Stack Gas Tem perature: 293.00 K

Meteorological and Terrain Information: Surrounding Land Use: Rural Terrain Height: 0.00 m Distance to Residence of Interest: 100.00 m Meteorological Cl ass: Full Stability Class: NA Wind Speed: NA Downwash Information: Facility Length: NA m Facility Width: NA m Facility Height: NA m11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENTAL RELEASES Scenario#: 7 Number of Release Sites: 73. Release Activity: USE1: PDM2 Release Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Releases: 4.42E+05 0.00 0.00 0.00 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/S ludge Release Days/yr: 247.00 0.00/0.00 0.00 0.00 Per Site Release: 24.50 0.00/0.00 0.00 0.00 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 7 Number of Sites: 73 RELEASE ACTIVITY: USE1: PDM2 SIC - CODE DESCRIPTION: Metal Finishing SIC - CODE (S): 34xx - 39xx EXPOSED POPULATION: Adult WWT REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 247. 24.5 2.45 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 300.46 107.45 67.50 55.59 8.15 22.80 36.30 44.07 ALL 10 23.74 4.69 2.64 2.27 103.20 522.39 928.03 1079.30

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATE S Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 4.30E - 05 5.45E - 04 mg/kg/day 1.84E - 04 2.33E - 03 mg/kg/day LADCpot 2.21E - 03 2.79E - 02 mg/L 2.21 27.94 mg/kg Acute ADR pot 1.91E - 03 4.37E - 02 mg/kg/day 1.47E - 02 0.19 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC CODE EXPOSURES TO SURFACE WATER RELEASES SCENARIO # : 7 RELEASE ACTIVITY: USE1: PDM2 SIC C ODE DESCRIPTION: Metal Finishing ASSOCIATED SIC CODES: 34xx - 39xx SIC CODE RESULTS COC (μg/L) Percent of

Year COC Exceeded Number of

Days COC Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis 1.00 68 247 247 .00 24.50 90.00 High11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENTAL RELEASES Scenario#: 8 Number of Release Sites: 73. Release Activity: USE1: Max LADD Release Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Releases: 4.57E+05 4.04E+05 4.04E+05 2.34E+04 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/Sludge Release Days/yr: 1.00 1.00/0.00 1.00 1.00 Per Site Release: 6257.36 5541.06/0.00 5541.0 6 321.10 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 8 Number of Sites: 73 RELEASE ACTIVITY: USE1: Max LADD SIC - CODE DESCRIPTION: Metal Finishing SIC - CODE (S): 34xx - 39xx EXPOSED POPULATION: Adult WWT REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 1. 6257.36 625.74 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 300.46 107.45 67.50 55. 59 2082.59 5823.51 9270.16 1.13E+04 ALL 10 23.74 4.69 2.64 2.27 2.64E+04 1.33E+05 2.37E+05 2.76E+05

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 4.45E - 05 5.63E - 04 mg/kg/day 1.91E - 04 2.41E - 03 mg/kg/day LADCpot 2.28E - 03 2.89E - 02 mg/L 2.28 28.89 mg/kg Acute ADR pot 0.49 11.15 mg/kg/day 3.74 47.36 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID: P - 12 - 0539

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES SCENARIO #: 8 ACTIVITY: USE1: Max LADD RELEASE DESCRIPTION: EXPOSED POPULATION: Adult

NUMBER OF SITES NON - SLUDGE

LANDFILL RELEASE AND DAYS OF RELEASE (kg/s ite/day)/(days) LANDFILLED SLUDGE 1 AND DAYS OF RELEASE (kg/site/day)/(days) MIGRATION

DESCRIPTOR2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING

WATER TREATMENT (%) 73. 5541.06/1.00 0.00/0.00 Slow 0.00 0.00

1 Landfilled s ludge equals the fraction adsorbed to wastewater treatment sludge times the surface water pre -treatment release. 2 Migration Descriptor Log Koc Groundwater Concentration (GWC) (mg/L per kg release) Negligible no migration None Negligible to slow > 4.5 3.21E - 6 Slow <4.5 to 3.5 2.67E - 5 Moderate <3.5 to 2.5 5.95E - 5 Rapid <2.5 7.55E - 5

Exposure Units Results ASSUMPTIONS ED (years) AT

(years) BW

(kg) IR

(L/day) Cancer LADD pot (mg/kg/day) 1.15E - 03 30.00 75.00 71.80 1.40 LADCpot (mg/L) 5.92E - 02 30.00 75.00 NA NA REMARKS:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539INHALATION EXPOSURE ESTIMATES (POST - TREATMENT) SCENARIO #: 8 RELEASE ACTIVITY: USE1: Max LADD RELEASE DESCRIPTION: METHOD OF CALCULATION: Screen3 EXPOSED POPULATION: Adult Number of Sites: 73. Per Site Fugitive Release: 321.10 kg/site/day Fugitive Release Days per Year: 1.00 days % Removal vi a Fugitive Release: 0.00 % Total Fugitive Release: 2.34E+04 kg/yr Max Annual Average Air Concentration (Fugitive): 9.62 μ g/m3 Max 24 Hour Average Air Concentration(Fugitive): 4.39E+04 μ g/m3 Per Site Stack Release: 5541.06 kg/site/day Stack Release Day s per Year: 1.00 days % Removal via Stack Release: 0.00 % Total Stack Release: 4.04E+05 kg/yr Max Annual Average Air Concentration (Stack): 20.40 μ g/m3 Max 24 Hour Average Air Concentration (Stack): 3.73E+04 μ g/m3

Exposure Units Results (Stack) Results

(Fugitive) ASSUMPTIONS

ED (years) AT

(years) BW

(kg) Inh. Rate

(m3 /hr) Cancer LADD pot (mg/kg/day) 1.50E - 03 7.07E - 04 30.00 75.00 71.80 0.55 LADCpot (mg/m3 ) 8.16E - 03 3.85E - 03 30.00 75.00 NA NA Acute ADR pot (mg/kg/day) 6.86 8.07 NA 1 day 71.8 0 0.55 Inhalation Comments:11/9/12 page of

Stack Parameter Data Fugitive Parameter Data Stack Height 10.00 m Release Height: 3.00 m Inside Stack Diameter: 0.10 m Length of Release Opening: 10.00 m Stack Gas Exit Velocity: 0.10 m/sec Width of Release Opening: 10.00 m Stack Gas Tem perature: 293.00 K

Meteorological and Terrain Information: Surrounding Land Use: Rural Terrain Height: 0.00 m Distance to Residence of Interest: 100.00 m Meteorological Class: Full Stability Class: NA Wind Speed: NA Downwash Information: Facility Length: NA m Facility Width: NA m Facility Height: NA m11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENT AL RELEASES Scenario#: 9 Number of Release Sites: 5. Release Activity: USE2: Max ADR, max acute eco Release Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Releases: 552.80 0.00 350.80 522.50 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/Sludge Release Days/yr: 1.00 0.00/0.00 1.00 250.00 Per Site Release: 110.56 0.00/0.00 70.16 0.42 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 9 Number of Sites: 5 RELEASE ACTIVITY: USE2: Max ADR, max acute eco SIC - CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.) SIC - CODE (S): Subset of 4952 EXPOSED POPULATION: Adult WWT REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 1. 110.56 11.06 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 288.00 123.84 78.18 66.05 38.39 89.28 141.42 167.39 ALL 10 39.60 13.29 7.76 7.57 279.19 831.90 1424.74 1460.50

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 8.20E - 07 5.97E - 06 mg/kg/day 3.52E - 06 2.56E - 05 mg/kg/day LADCpot 4.21E - 05 3.06E - 04 mg/L 4.21E - 02 0.31 mg/kg Acute ADR pot 7.46E - 03 6.95E - 02 mg/kg/day 6.90E - 02 0.50 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539INHALATION EXPOSURE ESTI MATES (POST - TREATMENT) SCENARIO #: 9 RELEASE ACTIVITY: USE2: Max ADR, max acute eco RELEASE DESCRIPTION: METHOD OF CALCULATION: Screen3 EXPOSED POPULATION: Adult Number of Sites: 5. Per Site Fugitive Release: 0.42 kg/site/day Fugitive Re lease Days per Year: 250.00 days % Removal via Fugitive Release: 0.00 % Total Fugitive Release: 522.50 kg/yr Max Annual Average Air Concentration (Fugitive): 3.13 μ g/m3 Max 24 Hour Average Air Concentration(Fugitive): 57.10 μ g/m3 Per Site Stack Releas e: 70.16 kg/site/day Stack Release Days per Year: 1.00 days % Removal via Stack Release: 0.00 % Total Stack Release: 350.80 kg/yr Max Annual Average Air Concentration (Stack): 0.26 μ g/m3 Max 24 Hour Average Air Concentration (Stack): 470.00 μ g/m3

Exposure Units Results (Stack) Results

(Fugitive) ASSUMPTIONS

ED (years) AT

(years) BW

(kg) Inh. Rate

(m3 /hr) Cancer LADD pot (mg/kg/day) 1.90E - 05 2.30E - 04 30.00 75.00 71.80 0.55 LADCpot (mg/m3 ) 1.04E - 04 1.25E - 03 30.00 75.00 NA NA Acute ADR pot (mg/kg/day) 8.64E - 02 1.05E - 02 NA 1 day 71.80 0.55 Inhalation Comments:11/9/12 page of

Stack Parameter Data Fugitive Parameter Data Stack Height 10.00 m Release Height: 3.00 m Inside Stack Diameter: 0 .10 m Length of Release Opening: 10.00 m Stack Gas Exit Velocity: 0.10 m/sec Width of Release Opening: 10.00 m Stack Gas Tem perature: 293.00 K

Meteorological and Terrain Information: Surrounding Land Use: Rural Terrain Height: 0.00 m Distance to Residence of Interest: 100.00 m Meteorological Class: Full Stability Class: NA Wind Speed: NA Downwash Information: Facility Length: NA m Facility Width: NA m Facility Height: NA m11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENTAL RELEASES Scenario#: 10 Number of Release Sites: 5. Release Activity: USE2: PDM Release Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Releases: 9.07E+04 0.00 0.00 0.00 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/Sludge Release Days/yr: 250.00 0.00/0.00 0.00 0.00 Per Site Release: 72.56 0.00/0.00 0.00 0.00 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 10 Number of Sites: 5 RELEASE ACTIVITY: USE2: PDM SIC - CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.) SIC - CODE (S): Subset of 4952 EXPOSED POPULATION: Adult WWT REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 250. 72.56 7.26 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 288.00 123.84 78.18 66.05 25.19 58.59 92.81 109.86 ALL 10 39.60 13.29 7.76 7.57 183.23 545.97 935.05 958.52

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 1.35E - 04 9.79E - 04 mg/kg/day 5.77E - 04 4.20E - 03 mg/kg/day LADCpot 6.90E - 03 5.02E - 02 mg/L 6.90 50.20 mg/kg Acute ADR pot 4.90E - 03 4.56E - 02 mg/kg/day 4.53E - 02 0.33 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC CODE EXPOSURES TO SURFACE WATER RELEASES SCENARIO # : 10 RELEASE ACTIVITY: USE2: PDM SIC CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.) ASSOCIATED SIC CODES: Subset of 4952 SIC CODE RESULTS COC (μg/L) Percent of

Year COC Exceeded Number of

Days COC Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis 1.00 68 250 250.00 72.56 90.00 High11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 Assessor: ENVIRONMENTAL RELEASES Scenario#: 11 Number of Release Sites: 5. Release Activity: USE2: Max LADD Release Description: WATER LANDFILL Non- sludge/Sludge STACK FUGITIVE Total Releases: 9.10E+04 9.25E+04 4.04E+04 522.50 (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non- sludge/Sludge Release Days/yr: 1.00 1.00/0.00 1.00 1.00 Per Site Release: 1.82E+04 1.85E+04/0.00 8078.00 104.50 (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day) Remarks:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539 SIC - CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES SCENARIO #: 11 Number of Sites: 5 RELEASE ACTIVITY: USE2: Max LADD SIC - CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.) SIC - CODE (S): Subset of 4952 EXPOSED POPULATION: Adult WWT REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT

(%) BCF

(L/kg) 90.00 1. 18200. 1820.00 0.00 1000.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10 ALL 50 288.00 123.84 78.18 66.05 6319.44 1.47E+04 2.33E+04 2.76E+04 ALL 10 39.60 13.29 7.76 7.57 4.60E+04 1.37E+05 2.35E+05 2.40E+05

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion Units 50% 10% 50% 10%

Cancer LADD pot 1.35E - 04 9.82E - 04 mg/kg/day 5.79E - 04 4.21E - 03 mg/kg/day LADCpot 6.93E - 03 5.04E - 02 mg/L 6.93 50.37 mg/kg Acute AD R pot 1.23 11.44 mg/kg/day 11.35 82.57 mg/kg/day SIC Code Comments:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID: P - 12 - 0539

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES SCENARIO #: 11 ACTIVITY: USE2: Max LADD RELEASE DESCRIPTION: EXPOS ED POPULATION: Adult

NUMBER OF SITES NON - SLUDGE

LANDFILL RELEASE AND DAYS OF RELEASE (kg/site/day)/(days) LANDFILLED SLUDGE 1 AND DAYS OF RELEASE (kg/site/day)/(days) MIGRATION

DESCRIPTOR2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING

WATER TREATMENT (%) 5. 1.85E+04/1.00 0.00/0.00 Slow 0.00 0.00

1 Landfilled sludge equals the fraction adsorbed to wastewater treatment sludge times the surface water pre -treatment release. 2 Migration Descriptor Log Koc Groundwater Concentration (GWC) (mg/L per kg release) Negligible no migration None Negligible to slow > 4.5 3.21E - 6 Slow <4.5 to 3.5 2.67E - 5 Moderate <3.5 to 2.5 5.95E - 5 Rapi d <2.5 7.55E - 5

Exposure Units Results ASSUMPTIONS ED (years) AT

(years) BW

(kg) IR

(L/day) Cancer LADD pot (mg/kg/day) 3.85E - 03 30.00 75.00 71.80 1.40 LADCpot (mg/L) 0.20 30.00 75.00 NA NA REMARKS:11/9/12 page of INITIAL REVIEW EXPOSURE REPORT Chemical ID : P - 12 - 0539INHALATION EXPOSURE ESTIMATES (POST - TREATMENT) SCENARIO #: 11 RELEASE ACTIVITY: USE2: Max LADD RELEASE DESCRIPTION: METHOD OF CALCULATION: Screen3 EXPOSED POPULATION: Adult Number of Sites: 5. Per Site Fugitive Release: 104.50 kg/site/day Fugitive Release Days per Year: 1.00 days % Removal via Fugitive Release: 0.00 % Total Fugitive Release: 522.50 kg/yr Max Annual Average Air Concentration (Fugitive): 3.13 μ g/m3 Max 24 Hour Average Air Concentration(Fugitive): 1.43E+04 μ g/m3 Per Site Stack Release: 8078.00 kg/site/day Stack Release Days per Year: 1.00 days % Removal via Stack Release: 0.00 % Total Stack Release: 4.04E+04 kg/yr Max Annual Average Air Concentration (Stack): 29.80 μ g/m3 Max 24 Hour Average Air Concentration (Stack): 5.44E+04 μ g/m3

Exposure Units Results (Stack) Results

(Fugitive) ASSUMPTIONS

ED (years) AT

(years) BW

(kg) Inh. Rate

(m3 /hr) Cancer LADD pot (mg/kg/day) 2.19E - 03 2.30E - 04 30.00 75.00 71.80 0.55 LADCpot (mg/m3 ) 1.19E - 02 1.25E - 03 30.00 75.00 NA NA Acute ADR pot (mg/kg/day) 10.00 2.63 NA 1 day 71.80 0.55 Inhalation Comments:11/9/12 page of

Stack Parameter Data Fugitive Parameter Data Stack Height 10.0 0 m Release Height: 3.00 m Inside Stack Diameter: 0.10 m Length of Release Opening: 10.00 m Stack Gas Exit Velocity: 0.10 m/sec Width of Release Opening: 10.00 m Stack Gas Tem perature: 293.00 K

Meteorological and Terrain Information: Surrounding Land Use: Rural Terrain Height: 0.00 m Distance to Residence of Interest: 100.00 m Meteorological Class: Full Stability Class: NA Wind Speed: NA Downwash Information: Facility Length: NA m Facility Width: NA m Facility Height: NA m11/9/12 page of

CEM Inputs ID Number: (null) Product: unknown Chemical Name: CEM453 Scenario: Used Motor Oil Population: Adult Molecular Weight (g/mole): 440 Consumer Product Weight Fraction - Central Tendency (unitless): 0.3 Consumer Product W eight Fraction - High- End (unitless): 0.3 Inhalation Inputs There are no Inhalation inputs for this scenario. Activity Patterns There are no Activity Patterns for this scenario. Dermal Inputs Frequency of Use - (chronic) (events/yr): 4 SA/BW - (cm2/kg): 7.8 Frequency of Use - (acute) (events/day): 1 Exposure Duration (years) chronic: 57 Exposure Duration (days) acute: 1 Amount Retained/Absorbed to Skin (g/cm2 - event): 0.0105

Averaging Time (chronic) (days) : 2.74e+04 Averaging Time (acute) (days) : 111/9/12 page of CEM Dermal Exposure Estimates ID Number: (null) Scenario: Used Motor Oil Population: Adult Exposure Duration (years) chronic: 57 Exposure Duration (days) acute: 1

Exposure Units Result AT(days) Chronic Cancer LADD pot (mg/kg - day) 2.05e - 01 2.74e+04 Acute ADR pot (mg/kg - day) 2.46e+01 1 LADD - Lifetime Average Daily Dose (mg/kg - day) ADR - Acute Dose Rate (mg/kg - day) Note: 75 years = 2.7 38e+04 days pot - potential dose Note: The general Agency guidance for assessing short -term, infrequent events (for most chemicals, an exposure of less than 24 hours that occurs no more frequently than monthly) is to treat such events as independent, acute exposures rather than as chronic exposure. (Methods for Exposure - Response Analysis for Acute Inhalation Exposure to Chemicals (External Review Draft). EPA/600/R- 98/051. April 1998)