6/05/12 Page 1 of 108



### STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Reviewer: Flessner/SS/AG Results Table: Dose, Concentration, and Days Exceeded Results Summary Exposure Scenario 1 Water Landfill Stack Air Fugitive Air Drinking Water Fish Ingestion ADR LADD ADR LADD 7Q10 4 CC = 36 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

Max ADR --- --- --- --- --- --- --- 2.63E-04 --- --- ---

Max LADD --- --- --- --- --- --- --- --- 8.09E-08 --- ---

Max ADR: max acut e eco 0.018 --- 4.16E-04 --- 3.74E+02 --- --- 3.58E-03 --- --- ---

Max LADD --- 4.38E-06 --- 5.92E-08 --- --- 3.76E-06 --- 2.20E-06 --- --- Max ADR:

m ax acute eco 0.02 --- 2.38E-04 --- 4.38E+02 --- --- 1.73E-05 --- --- --- Max LADD --- 3.56E-06 --- 4.84E-08 --- --- 2.60E-08 --- 1.52E-08 --- --- Max ADR:

m ax acute eco 1.45E-04 --- 3.30E-06 --- 2.96E+00 --- --- 2.85E-05 --- --- --- Max LADD --- 1.24E-08 --- 1.68E-10 --- --- 1.07E-08 --- 6.24E-09 --- --- Max acut e eco; Max ADR; Max LADD 6.93E-02 2.00E-06 5.31E-04 2.70E-08 1553.19 --- --- --- --- --- ---

Max ADR:

m ax acute eco 1.08E-03 --- 1.28E-05 --- 2.36E+01 --- --- 3.09E-05 --- --- --- Max LADD --- 4.80E-08 --- 6.52E-10 --- --- 1 16E-08 --- 6.78E-09 --- --- : Max acut e eco; Max ADR; Max LADD 7.69E-02 2.22E-06 5.89E-04 3.00E-08 1723.40 --- --- --- --- --- ---

Max ADR:

m ax acute eco 2.20E-02 --- 5.02E-04 --- 4.52E+02 --- --- 8.79E-06 --- --- --- Max LADD --- 3.60E-05 --- 4.86E-07 --- --- 6.03E-08 --- 3.66E-08 --- --- Max ADR:

m ax acute eco 1.76E-02 --- 4.02E-04 --- 3.62E+02 --- --- 7.06E-06 --- --- --- Max LADD --- 3.02E-06 --- 4.10E-08 --- --- 5 29E-09 --- 3.10E-09 --- --- Max ADR:

m ax acute eco 1.82E-02 --- 2.16E-04 --- 4.00E+02 --- --- 1.61E-05 --- --- --- Max LADD --- 3.26E-06 --- 4.40E-08 --- --- 2.41E-08 --- 1.41E-08 --- ---6/05/12 Page 2 of 108

Exposure Scenario 1 Water Landfill Stack Air Fugitive Air Drinking Water Fish Ingestion ADR LADD ADR LADD 7Q10 4 CC = 36 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

Max ADR:

m ax acute eco 6.10E-03 --- 1.39E-04 --- 1.25E+02 --- --- 6.00E-01 --- --- --- Max LADD --- 5.24E-07 --- 7.08E-09 --- --- 2 23E-04 --- 1.31E-04 --- --- Max ADR:

m ax acute eco 9.44E-03 --- 2.16E-04 --- 1.93E+02 --- --- 9.40E-01 --- --- --- Max LADD --- 8.10E-07 --- 1.10E-08 --- --- 3 53E-04 --- 2.07E-04 --- --- Max ADR:

m ax acute eco 2.68E-03 --- 3.16E-05 --- 5.84E+01 --- --- 2.19E-03 --- --- --- Max LADD --- 1.19E-07 --- 1.61E-9 --- --- 8 17E-07 --- 4.78E-07 --- --- 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 activ ities are combined in one expos ure scenario if their releas es occur at same location. 3 Exposure calculations are Acute Dose Rate (ADR), Lifeti me Average Daily Dose (LADD), and Probabilistic Dilution Model (PDM). There may be one, two, or all three exposure calculat ions per exposure scenario. CC is the aquatic concentration of

concern. 4 This column displays concentration values for the 7Q10 stream flow, which is defined as the average daily streamflow of the seven consecutive days of lowest flow within a ten year period.
Remarks:6/05/12 Page 3 of 1086/05/12 Page 4 of 1086/05/12 Page 5 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:1 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 6 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 1 RELEASE ACTIVITY Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites:

. Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 7.86E-04 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 1.43 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 5.78E-08 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 3.14E-07 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 2.63E-04 N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 7 of 108

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 Temperature: 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 m6/05/12 Page 8 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:2 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 9 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 2 RELEASE ACTIVI TY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 1.10E-03 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 8.09E-08 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 4.40E-07 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 10 of 108

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 Temperature: 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 m6/05/12 Page 11 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:3 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 12 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 3 Number of S ites: RELEASE ACTIVITY: : Max ADR SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 10.07 23.42 37.09 43.91
ALL 10 39.60 13.29 7.76 7.57 73.23 218.21 373.71 383.09

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 4.30E-07 3.13E-06 mg/kg/day 5.83E-09 4.24E-08 mg/kg/day
LADC pot 2.21E-05 1.61E-04 mg/L 6.97E-05 5.07E-04 mg/kg
Acute
ADR pot 1.96E-03 1.82E-02 mg/kg/day 5.72E-05 4.16E-04 mg/kg/day

SIC Code Comments:6/05/12 Page 13 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 3 RELEASE ACTI VITY: Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 2.14E-02 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 19.50 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 1.57E-06 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 8.56E-06 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 3.58E-03 N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 14 of 108

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 Temperature: 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 m6/05/12 Page 15 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:4 Number of Release Sites: Release Activity: : Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 16 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 4 Number of S ites: RELEASE ACTIVITY: Max LADD SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 N/A N/A N/A N/A
ALL 10 39.60 13.29 7.76 7.57 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 6.01E-07 4.37E-06 mg/kg/day 8.14E-09 5.92E-08 mg/kg/day
LADC pot 3.08E-05 2.24E-04 mg/L 9.74E-05 7.08E-04 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 17 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 4 ACTIVITY: 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 DESCRIPTOR 2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING WATER TREATMENT (%)

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

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 3.76E-06 30.00 75.00 71.80 1.40 LADC pot (mg/L) 1.93E-04 30.00 75.00 NA NA

REMARKS:6/05/12 Page 18 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 4 RELEASE ACTI VITY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 2.99E-02 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 2.20E-06 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 1.20E-05 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 19 of 108

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 Temperature: 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 m6/05/12 Page 20 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:5 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 21 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 5 Number of Site s: RELEASE ACTIVITY: Max ADR
SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EX POSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 125.56 44.02 26.80 22.53 3.70 10.54 17.31 20.59
ALL 10 11.11 1.94 1.06 0.96 41.76 239.18 437.74 483.33

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 3.16E-07 3.57E-06 mg/kg/day 4.28E-09 4.83E-08 mg/kg/day
LADC pot 1.62E-05 1.83E-04 mg/L 5.12E-05 5.79E-04 mg/kg
Acute
ADR pot 8.81E-04 2.00E-02 mg/kg/day 2.10E-05 2.37E-04 mg/kg/day

SIC Code Comments:6/05/12 Page 22 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 5 RELEASE ACTIVITY: Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 2.07E-04 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 9.43E-02 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 1.52E-08 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 8.28E-08 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 1.73E-05 N/A NA 1 day 71.80 0.55
Inhalation Comments:6/05/12 Page 23 of 108

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 Temperature: 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 m6/05/12 Page 24 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:6 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 25 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 6 Number of Site s: RELEASE ACTIVITY: Max LADD
SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EX POSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 125.56 44.02 26.80 22.53 N/A N/A N/A N/A
ALL 10 11.11 1.94 1.06 0.96 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 3.16E-07 3.57E-06 mg/kg/day 4.28E-09 4.83E-08 mg/kg/day
LADC pot 1.62E-05 1.83E-04 mg/L 5.12E-05 5.79E-04 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 26 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 6 ACTIVITY: 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 DESCRIPTOR 2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING WATER TREATMENT (%)

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

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 2.60E-08 30.00 75.00 71.80 1.40 LADC pot (mg/L) 1.33E-06 30.00 75.00 NA NA

REMARKS:6/05/12 Page 27 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 6 RELEASE ACTIVITY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 2.07E-04 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 1.52E-08 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 8.28E-08 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 28 of 108

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 Temperature: 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 m6/05/12 Page 29 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:7 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 30 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 7 Number of Site s: RELEASE ACTIVITY: Max ADR SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 7.99E-02 0.19 0.29 0.35
ALL 10 39.60 13.29 7.76 7.57 0.58 1.73 2.96 3.04

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 1.71E-09 1.24E-08 mg/kg/day 2.31E-11 1.68E-10 mg/kg/day
LADC pot 8.75E-08 6.37E-07 mg/L 2.77E-07 2.01E-06 mg/kg
Acute
ADR pot 1.55E-05 1.45E-04 mg/kg/day 4.53E-07 3.30E-06 mg/kg/day

SIC Code Comments:6/05/12 Page 31 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 7 RELEASE ACTIVITY: Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 2.99E-02 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 54.60 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 2.20E-06 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 1.20E-05 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 1.00E-02 N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 32 of 108

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 Temperature: 293.00 K

Meteorological and Terrain Information:
Surrounding Land Use: Rural Terrain Height: 0.00
Distance to Residence of Interest: 0.00 Meteorological Class: Full Stability Class: NA Wind Speed: NA ft/sec

Downwash Information:
Facility Length: NA m Facility Width: NA m Facility Height: NA m6/05/12 Page 33 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:8 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 34 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 8 Number of Site s: RELEASE ACTIVITY: Max LADD SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 N/A N/A N/A N/A
ALL 10 39.60 13.29 7.76 7.57 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 1.71E-09 1.24E-08 mg/kg/day 2.31E-11 1.68E-10 mg/kg/day
LADC pot 8.75E-08 6.37E-07 mg/L 2.77E-07 2.01E-06 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 35 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 8 ACTIVITY: 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 DESCRIPTOR 2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING WATER TREATMENT (%)

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

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 1.07E-08 30.00 75.00 71.80 1.40 LADC pot (mg/L) 5.47E-07 30.00 75.00 NA NA

REMARKS:6/05/12 Page 36 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 8 RELEASE ACTIVITY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 8.49E-05 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 6.24E-09 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 3.40E-08 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 37 of 108

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 Temperature: 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 m6/05/12 Page 38 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:9 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 39 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 9 Number of Sites: RELEASE ACTIVITY : Max ADR
SIC-CODE DESCRIPTION: SIC-CODE (S): EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 2.72 7.32 11.67 14.16
ALL 10 93.47 829.55 1553.19 1553.19

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 5.80E-08 2.00E-06 mg/kg/day 7.86E-10 2.70E-08 mg/kg/day
LADC pot 2.98E-06 1.02E-04 mg/L 9.40E-06 3.24E-04 mg/kg
Acute
ADR pot 6.11E-04 6.93E-02 mg/kg/day 1.54E-05 5.31E-04 mg/kg/day

SIC Code Comments:6/05/12 Page 40 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:10 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 41 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 10 Number of Sites: RELEASE ACTIVITY Max LADD
SIC-CODE DESCRIPTION: SIC-CODE (S): EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 N/A N/A N/A N/A
ALL 10 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 5.80E-08 2.00E-06 mg/kg/day 7.86E-10 2.70E-08 mg/kg/day
LADC pot 2.98E-06 1.02E-04 mg/L 9.40E-06 3.24E-04 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 42 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:11 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 43 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 11 Number of S ites: RELEASE ACTIVITY: Max ADR
SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EX POSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 125.56 44.02 26.80 22.53 0.20 0.57 0.93 1.11
ALL 10 11.11 1.94 1.06 0.96 2.25 12.89 23.58 26.04

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 4.25E-09 4.81E-08 mg/kg/day 5.76E-11 6.51E-10 mg/kg/day
LADC pot 2.18E-07 2.47E-06 mg/L 6.90E-07 7.79E-06 mg/kg
Acute
ADR pot 4.75E-05 1.08E-03 mg/kg/day 1.13E-06 1.28E-05 mg/kg/day

SIC Code Comments:6/05/12 Page 44 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 11 RELEASE ACTIVITY: Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 9.22E-05 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 0.17 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 6.78E-09 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 3.69E-08 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 3.09E-05 N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 45 of 108

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 Temperature: 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 m6/05/12 Page 46 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:12 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 47 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 12 Number of S ites: RELEASE ACTIVITY: Max LADD
SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EX POSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 125.56 44.02 26.80 22.53 N/A N/A N/A N/A
ALL 10 11.11 1.94 1.06 0.96 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 4.25E-09 4.81E-08 mg/kg/day 5.76E-11 6.51E-10 mg/kg/day
LADC pot 2.18E-07 2.47E-06 mg/L 6.90E-07 7.79E-06 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 48 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 12 ACTIVITY: 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 DESCRIPTOR 2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING WATER TREATMENT (%)

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

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 1.16E-08 30.00 75.00 71.80 1.40 LADC pot (mg/L) 5.95E-07 30.00 75.00 NA NA

REMARKS:6/05/12 Page 49 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 12 RELEASE ACTIVITY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 9.22E-05 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 6.78E-09 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 3.69E-08 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 50 of 108

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 Temperature: 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 m6/05/12 Page 51 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:13 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 52 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 13 Number of Sites: RELEASE ACTIVITY: Max ADR
SIC-CODE DESCRIPTION: SIC-CODE (S): EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 3.01 8.12 12.95 15.71
ALL 10 103.71 920.45 1723.40 1723.40

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 6.44E-08 2.22E-06 mg/kg/day 8.72E-10 3.00E-08 mg/kg/day
LADC pot 3.30E-06 1.14E-04 mg/L 1.04E-05 3.59E-04 mg/kg
Acute
ADR pot 6.78E-04 7.69E-02 mg/kg/day 1.71E-05 5.89E-04 mg/kg/day

SIC Code Comments:6/05/12 Page 53 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:14 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 54 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 14 Number of Sites: RELEASE ACTIVITY: Max LADD
SIC-CODE DESCRIPTION: SIC-CODE (S): EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 N/A N/A N/A N/A
ALL 10 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 6.44E-08 2.22E-06 mg/kg/day 8.72E-10 3.00E-08 mg/kg/day
LADC pot 3.30E-06 1.14E-04 mg/L 1.04E-05 3.59E-04 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 55 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:15 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 56 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 15 Number of S ites: RELEASE ACTIVITY: Max ADR SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 12.18 28.32 44.86 53.10
ALL 10 39.60 13.29 7.76 7.57 88.56 263.88 451.93 463.28

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 4.94E-06 3.60E-05 mg/kg/day 6.70E-08 4.87E-07 mg/kg/day
LADC pot 2.54E-04 1.84E-03 mg/L 8.01E-04 5.83E-03 mg/kg
Acute
ADR pot 2.37E-03 2.21E-02 mg/kg/day 6.91E-05 5.03E-04 mg/kg/day

SIC Code Comments:6/05/12 Page 57 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 15 RELEASE ACTIVITY: Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 4.98E-04 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 4.78E-02 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 3.66E-08 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 1.99E-07 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 8.79E-06 N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 58 of 108

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 Temperature: 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 m6/05/12 Page 59 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:16 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 60 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 16 Number of S ites: RELEASE ACTIVITY: Max LADD SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 N/A N/A N/A N/A
ALL 10 39.60 13.29 7.76 7.57 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 4.94E-06 3.60E-05 mg/kg/day 6.70E-08 4.87E-07 mg/kg/day
LADC pot 2.54E-04 1.84E-03 mg/L 8.01E-04 5.83E-03 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 61 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 16 ACTIVITY: 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 DESCRIPTOR 2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING WATER TREATMENT (%)

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

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 6.03E-08 30.00 75.00 71.80 1.40 LADC pot (mg/L) 3.09E-06 30.00 75.00 NA NA

REMARKS:6/05/12 Page 62 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 16 RELEASE ACTIVITY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 4.98E-04 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 3.66E-08 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 1.99E-07 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 63 of 108

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 Temperature: 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 m6/05/12 Page 64 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:17 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 65 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 17 Number of Site s: RELEASE ACTIVITY: Max ADR SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 9.74 22.66 35.89 42.48
ALL 10 39.60 13.29 7.76 7.57 70.86 211.14 361.60 370.67

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 4.16E-07 3.03E-06 mg/kg/day 5.64E-09 4.10E-08 mg/kg/day
LADC pot 2.14E-05 1.55E-04 mg/L 6.75E-05 4.91E-04 mg/kg
Acute
ADR pot 1.89E-03 1.76E-02 mg/kg/day 5.53E-05 4.02E-04 mg/kg/day

SIC Code Comments:6/05/12 Page 66 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 17 RELEASE ACTIVITY: Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 4.21E-05 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 3.84E-02 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 3.10E-09 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 1.68E-08 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 7.06E-06 N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 67 of 108

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 Temperature: 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 m6/05/12 Page 68 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:18 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 69 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 18 Number of Site s: RELEASE ACTIVITY: Max LADD SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 N/A N/A N/A N/A
ALL 10 39.60 13.29 7.76 7.57 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 4.16E-07 3.03E-06 mg/kg/day 5.64E-09 4.10E-08 mg/kg/day
LADC pot 2.14E-05 1.55E-04 mg/L 6.75E-05 4.91E-04 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 70 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 18 ACTIVITY: 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 DESCRIPTOR 2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING WATER TREATMENT (%)

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

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 5.29E-09 30.00 75.00 71.80 1.40 LADC pot (mg/L) 2.71E-07 30.00 75.00 NA NA

REMARKS:6/05/12 Page 71 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 18 RELEASE ACTIVITY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 4.21E-05 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 3.10E-09 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 1.68E-08 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 72 of 108

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 Temperature: 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 m6/05/12 Page 73 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:19 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 74 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 19 Number of Site s: RELEASE ACTIVITY: Max ADR
SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EX POSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 125.56 44.02 26.80 22.53 3.37 9.61 15.78 18.77
ALL 10 11.11 1.94 1.06 0.96 38.07 218.04 399.06 440.63

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 2.88E-07 3.25E-06 mg/kg/day 3.90E-09 4.41E-08 mg/kg/day
LADC pot 1.48E-05 1.67E-04 mg/L 4.67E-05 5.27E-04 mg/kg
Acute
ADR pot 8.03E-04 1.82E-02 mg/kg/day 1.91E-05 2.16E-04 mg/kg/day

SIC Code Comments:6/05/12 Page 75 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 19 RELEASE ACTIVITY: Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 1.92E-04 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 8.76E-02 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 1.41E-08 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 7.68E-08 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 1.61E-05 N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 76 of 108

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 Temperature: 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 m6/05/12 Page 77 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:20 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 78 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 20 Number of Site s: RELEASE ACTIVITY: Max LADD
SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EX POSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 125.56 44.02 26.80 22.53 N/A N/A N/A N/A
ALL 10 11.11 1.94 1.06 0.96 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 2.88E-07 3.25E-06 mg/kg/day 3.90E-09 4.41E-08 mg/kg/day
LADC pot 1.48E-05 1.67E-04 mg/L 4.67E-05 5.27E-04 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 79 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 20 ACTIVITY: 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 DESCRIPTOR 2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING WATER TREATMENT (%)

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

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 2.41E-08 30.00 75.00 71.80 1.40 LADC pot (mg/L) 1.24E-06 30.00 75.00 NA NA

REMARKS:6/05/12 Page 80 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 20 RELEASE ACTIVITY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 1.92E-04 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 1.41E-08 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 7.68E-08 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 81 of 108

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 Temperature: 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 m6/05/12 Page 82 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:21 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 83 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 21 Number of Site s: RELEASE ACTIVITY: Max ADR SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 3.37 7.83 12.41 14.69
ALL 10 39.60 13.29 7.76 7.57 24.49 72.99 125.00 128.14

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 7.20E-08 5.23E-07 mg/kg/day 9.75E-10 7.09E-09 mg/kg/day
LADC pot 3.69E-06 2.68E-05 mg/L 1.17E-05 8.48E-05 mg/kg
Acute
ADR pot 6.55E-04 6.10E-03 mg/kg/day 1.91E-05 1.39E-04 mg/kg/day

SIC Code Comments:6/05/12 Page 84 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 21 RELEASE ACTIVITY: Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Con centration (Stack): 1.78 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 3240.00 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 1.31E-04 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 7.12E-04 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 0.60 N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 85 of 108

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 Temperature: 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 m6/05/12 Page 86 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:22 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 87 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 22 Number of Site s: RELEASE ACTIVITY: Max LADD SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 N/A N/A N/A N/A
ALL 10 39.60 13.29 7.76 7.57 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 7.20E-08 5.23E-07 mg/kg/day 9.75E-10 7.09E-09 mg/kg/day
LADC pot 3.69E-06 2.68E-05 mg/L 1.17E-05 8.48E-05 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 88 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 22 ACTIVITY: 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 DESCRIPTOR 2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING WATER TREATMENT (%)

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

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 2.23E-04 30.00 75.00 71.80 1.40 LADC pot (mg/L) 1.14E-02 30.00 75.00 NA NA

REMARKS:6/05/12 Page 89 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 22 RELEASE ACTIVITY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Con centration (Stack): 1.78 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 1.31E-04 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 7.12E-04 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 90 of 108

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 Temperature: 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 m6/05/12 Page 91 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:23 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 92 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 23 Number of S ites: RELEASE ACTIVITY: Max ADR SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 5.21 12.11 19.19 22.71
ALL 10 39.60 13.29 7.76 7.57 37.88 112.87 193.30 198.15

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 1.11E-07 8.09E-07 mg/kg/day 1.51E-09 1.10E-08 mg/kg/day
LADC pot 5.71E-06 4.15E-05 mg/L 1.80E-05 1.31E-04 mg/kg
Acute
ADR pot 1.01E-03 9.43E-03 mg/kg/day 2.96E-05 2.15E-04 mg/kg/day

SIC Code Comments:6/05/12 Page 93 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 23 RELEASE ACTIVITY: Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Con centration (Stack): 2.81 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 5130.00 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 2.07E-04 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 1.12E-03 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 0.94 N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 94 of 108

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 Temperature: 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 m6/05/12 Page 95 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:24 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 96 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 24 Number of S ites: RELEASE ACTIVITY: Max LADD SIC-CODE DESCRIPTION: POTW (Indust., incl udes POTWs which receive ind. disch.) SIC-CODE (S): Subset of 49 52 EXPOSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 288.00 123.84 78.18 66.05 N/A N/A N/A N/A
ALL 10 39.60 13.29 7.76 7.57 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 1.11E-07 8.09E-07 mg/kg/day 1.51E-09 1.10E-08 mg/kg/day
LADC pot 5.71E-06 4.15E-05 mg/L 1.80E-05 1.31E-04 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 97 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 24 ACTIVITY: 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 DESCRIPTOR 2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING WATER TREATMENT (%)

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

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 3.53E-04 30.00 75.00 71.80 1.40 LADC pot (mg/L) 1.81E-02 30.00 75.00 NA NA

REMARKS:6/05/12 Page 98 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 24 RELEASE ACTIVITY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Con centration (Stack): 2.81 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 2.07E-04 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 1.12E-03 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 99 of 108

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 Temperature: 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 m6/05/12 Page 100 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:25 Number of Release Sites: Release Activity: Max ADR Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 101 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 25 Number of Site s: RELEASE ACTIVITY: Max ADR
SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EX POSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 125.56 44.02 26.80 22.53 0.49 1.41 2.31 2.75
ALL 10 11.11 1.94 1.06 0.96 5.58 31.96 58.49 64.58

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 1.06E-08 1.19E-07 mg/kg/day 1.43E-10 1.61E-09 mg/kg/day
LADC pot 5.41E-07 6.12E-06 mg/L 1.71E-06 1.93E-05 mg/kg
Acute
ADR pot 1.18E-04 2.67E-03 mg/kg/day 2.80E-06 3.17E-05 mg/kg/day

SIC Code Comments:6/05/12 Page 102 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 25 RELEASE ACTIVITY: Max ADR
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 0.00 μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 6.50E-03 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 11.90 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 4.78E-07 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 2.60E-06 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) 2.19E-03 N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 103 of 108

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 Temperature: 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 m6/05/12 Page 104 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543 Assessor: Flessner/SS
ENVIRONMENTAL RELEASES
Scenario#:26 Number of Release Sites: Release Activity: Max LADD Release Description: WATER LANDFILL Non-sludge/Sludge STACK FUGITIVE

Total Releases: (kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge Release Days/yr:
Per Site Release: (kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks:6/05/12 Page 105 of 108

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-11-0543

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 26 Number of Site s: RELEASE ACTIVITY: Max LADD
SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EX POSED POPULATION: Adult

WWT REMOVAL (%) RELEASE DAYS PRETREATMENT RELEASE (kg/site/day) POSTTREATMENT RELEASE (kg/site/day) DWT (%) BCF (L/kg)
0.00 3.16

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 125.56 44.02 26.80 22.53 N/A N/A N/A N/A
ALL 10 11.11 1.94 1.06 0.96 N/A N/A N/A N/A

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 1.06E-08 1.19E-07 mg/kg/day 1.43E-10 1.61E-09 mg/kg/day
LADC pot 5.41E-07 6.12E-06 mg/L 1.71E-06 1.93E-05 mg/kg
Acute
ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:6/05/12 Page 106 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 26 ACTIVITY: 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 DESCRIPTOR 2 ADSORPTION TO WASTEWATER SLUDGE (%) DRINKING WATER TREATMENT (%)

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

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 8.17E-07 30.00 75.00 71.80 1.40 LADC pot (mg/L) 4.19E-05 30.00 75.00 NA NA

REMARKS:6/05/12 Page 107 of 108

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-11-0543

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 26 RELEASE ACTIVITY: Max LADD
RELEASE DESCRIPTION:
METHOD OF CALCULATION: Screen3
EXPOSED POPULATION: Adult

Number of Sites: Per Site Fugitive Release: kg/site/day Fugitive Release Days per Year: days % Removal via Fugitive Release: % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 0.00 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): N/A μg/m 3

Per Site Stack Release: kg/site/day Stack Release Days per Year: days
% Removal via Stack Release: %
Total Stack Release: kg/yr Max Annual Average Air Concen tration (Stack): 6.50E-03 μg/m 3 Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) 4.78E-07 N/A 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) 2.60E-06 N/A 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A N/A NA 1 day 71.80 0.55

Inhalation Comments:6/05/12 Page 108 of 108

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 Temperature: 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 m