11/7/2012 Page 1 of 77



### STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450C Reviewer: Cinalli/BC

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 = 1000 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: max acut e eco 3.01E-04 --- --- --- 4.90E+00 --- --- 4.23E-02 --- --- ---

PDM1 --- --- --- --- 4.90E+00 --- --- --- --- --- Max LADD --- 9.92E-07 --- --- --- --- --- --- 3.12E-04 --- ---

Max ADR: max acut e eco 1.75E-02 --- --- --- 3.59E+02 --- --- 3.24E-03 --- --- ---

PDM1 --- --- --- --- 3.59E+02 --- --- --- --- ---

PDM2 --- --- --- --- 5.76E+01 --- --- --- --- ---

Max LADD --- 4.64E-05 --- --- --- --- 4.53E-05 --- 2.09E-05 --- ---

Max ADR: max acut e eco 1.65E-02 --- --- --- 3.38E+02 --- --- 3.24E-03 --- --- ---

PDM1 --- --- --- --- 3.38E+02 --- --- --- --- ---

PDM2 --- --- --- --- 5.41E+01 --- --- --- --- ---

Max LADD --- 3.68E-05 --- --- --- --- 4.02E-05 --- 1.85E-05 --- ---

Max ADR: max acut e eco 2.46E-04 --- --- --- 5.38E+00 --- --- 7.06E-06 --- 2.76E-04 ---

PDM1 --- --- --- --- 5.38E+00 --- --- --- --- ---

Max --- 2.74E-06 --- --- --- --- 1.51E-05 --- 3.87E-07 --- 6.05E-0611/7/2012 Page 2 of 77

LADD

Max ADR: max acut e eco 5.17E-03 --- --- --- 1.13E+02 --- --- 1.49E-04 --- --- ---

PDM1 --- --- --- --- 1.13E+02 --- --- --- --- ---

Max LADD --- 4.62E-05 --- --- --- --- 1.41E-05 --- 6.52E-06 --- ---

1 Exposure scenario titles consist of release activity followed by exposure calculation abbreviation. 2 Release activities are from engineering report's Manufact uring (Mfg), Processing (Proc) and Use release activity labels. Multiple release activities are combined in one exposu re scenario if their releases occur at same location. 3 Exposure calculations 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.

Remarks:



### Results Table: Exposure Based (X B)/Persistent (P2B2) Criteria

Parameter Exp Based Persistent Exceedance Value Drinking (Surface) Wate r Dose (mg/kg/day) No No Fish Ingestion Dose (mg/kg/day) No No Inhalation Dose (mg/kg/day) No No Groundwater Dose (mg/kg/day) No No Surface Water Release After Treatment (kg/yr) Total Release After Treatment (kg/yr) Consumer Use?



### Fate test recommendations?: (default is NA)11/7/2012 Page 3 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

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:11/7/2012 Page 4 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:1 RELEASE ACTIVITY: Max ADR

FACILITY NAME:

FACILITY LOCATION:

RECEIVING WATER NAME:

REACH NUMBER: FACILITY ON REACH: DISCHARGE TYPE:
NPDES PERMIT #: EXPOSED POPULATION: Adult

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

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT FLOW (MLD) CONCENTRATION ( μ g/L) 1.37 3.60 4.90 6.14 NA

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES

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

Cancer

LADD pot 9.92E-07 mg/kg/day 0.00 mg/kg/day

LADC pot 5.09E-05 mg/L 0.00 mg/kg

Acute

ADR pot 3.01E-04 mg/kg/day 0.00 mg/kg/day

Surface Water Comments:11/7/2012 Page 5 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

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): 4.24 μg/m 3
Max 24 Hour Average Air Concentration (Stack): 230.00 μg/m 3

Exposure Units Results (Stack) Results (Fugitive) ASSUMPTIONS

ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)

Cancer

LADD pot (mg/kg/day) 3.12E-04 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 1.70E-03 N/A 30.00 75.00 NA NA
Acute

ADR pot

(mg/kg/day) 4.23E-02 N/A NA 1 day 71.80 0.55

Inhalation Comments:11/7/2012 Page 6 of 77

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 m11/7/2012 Page 7 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:2 Number of Release Sites: Release Activity: PDM1 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:11/7/2012 Page 8 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:2 RELEASE ACTIVITY: PDM1

FACILITY NAME:

FACILITY LOCATION:

RECEIVING WATER NAME:

REACH NUMBER: FACILITY ON REACH: DISCHARGE TYPE:
NPDES PERMIT #: EXPOSED POPULATION: Adult

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

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT FLOW (MLD) CONCENTRATION ( μ g/L) 1.37 3.60 4.90 6.14 NA

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES

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

Cancer

LADD pot 9.92E-07 mg/kg/day 0.00 mg/kg/day

LADC pot 5.09E-05 mg/L 0.00 mg/kg

Acute

ADR pot 3.01E-04 mg/kg/day 0.00 mg/kg/day

Surface Water Comments:11/7/2012 Page 9 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 2 RELEASE ACTIVITY: PDM1

FACILITY NAME:

FACILITY LOCATION:

RECEIVING STREAM NAME:

REACH NUMBER: FACILITY ON REACH: DISCHARGE TYPE:

NPDES PERMIT NUMBER: GAGING STATION ID:
GAGING STATION PERIOD OF RECORD: GAGING STATION NUMBER OF OBSERVATIONS: NUMBER OF STATIONS ON REACH:

MEAN FLOW (MLD): 7q10 FLOW (MLD): EFFLUENT FLOW (MLD):

RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Pre-treatment Loading (kg/site/day) Waste Water Treatment (%)

1000.0011/7/2012 Page 10 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:3 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:11/7/2012 Page 11 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:3 RELEASE ACTIVITY: Max LADD

FACILITY NAME:

FACILITY LOCATION:

RECEIVING WATER NAME:

REACH NUMBER: FACILITY ON REACH: DISCHARGE TYPE:
NPDES PERMIT #: EXPOSED POPULATION: Adult

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

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT FLOW (MLD) CONCENTRATION ( μ g/L) N/A N/A N/A N/A NA

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES

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

Cancer

LADD pot 9.92E-07 mg/kg/day 0.00 mg/kg/day

LADC pot 5.09E-05 mg/L 0.00 mg/kg

Acute

ADR pot N/A mg/kg/day N/A mg/kg/day

Surface Water Comments:11/7/2012 Page 12 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 3 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): 4.24 μg/m 3
Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

Exposure Units Results (Stack) Results (Fugitive) ASSUMPTIONS

ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)

Cancer

LADD pot (mg/kg/day) 3.12E-04 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 1.70E-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:11/7/2012 Page 13 of 77

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 m11/7/2012 Page 14 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:4 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:11/7/2012 Page 15 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 4 Number of Site s: 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 0.00

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 12.10 43.44 70.56 85.31

ALL 10 73.93 209.43 359.40 429.51

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 6.72E-06 4.11E-05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 3.45E-04 2.11E-03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 3.63E-03 1.75E-02 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/7/2012 Page 16 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 4 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): 0.25 μg/m 3
Max 24 Hour Average Air Concentration (Stack): 17.60 μg/m 3

Exposure Units Results (Stack) Results (Fugitive) ASSUMPTIONS

ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)

Cancer

LADD pot (mg/kg/day) 1.85E-05 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 1.00E-04 N/A 30.00 75.00 NA NA
Acute

ADR pot

(mg/kg/day) 3.24E-03 N/A NA 1 day 71.80 0.55

Inhalation Comments:11/7/2012 Page 17 of 77

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 m11/7/2012 Page 18 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:5 Number of Release Sites: Release Activity: PDM1 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:11/7/2012 Page 19 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 5 Number of Site s: RELEASE ACTIVITY: PDM1

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 0.00

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 12.10 43.44 70.56 85.31

ALL 10 73.93 209.43 359.40 429.51

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 6.72E-06 4.11E-05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 3.45E-04 2.11E-03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 3.63E-03 1.75E-02 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/7/2012 Page 20 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 5 RELEASE ACTIVITY: PDM1

SIC CODE DESCRIPTION:

ASSOCIATED SIC CODES:

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 21 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:6 Number of Release Sites: Release Activity: PDM2 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:11/7/2012 Page 22 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 6 Number of Site s: RELEASE ACTIVITY: PDM2

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 0.00

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 1.94 6.96 11.31 13.68

ALL 10 11.85 33.57 57.61 68.85

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 1.95E-06 1.19E-05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 9.99E-05 6.10E-04 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 5.82E-04 2.81E-03 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/7/2012 Page 23 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 6 RELEASE ACTIVITY: PDM2

SIC CODE DESCRIPTION:

ASSOCIATED SIC CODES:

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 24 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:7 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:11/7/2012 Page 25 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 7 Number of Site s: 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 0.00

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 INGESTION EXPOSURE ESTIMATES

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

Units 50% 10% 50% 10%

Cancer

LADD pot 7.59E-06 4.64E-05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 3.90E-04 2.38E-03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:11/7/2012 Page 26 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 7 RELEASE ACTIVITY: Max LADD

SIC CODE DESCRIPTION:

ASSOCIATED SIC CODES:

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 27 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 7 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

Exposure Units Results ASSUMPTIONS
ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 4.53E-05 30.00 75.00 71.80 1.40 LADC pot (mg/L) 2.32E-03 30.00 75.00 NA NA

REMARKS:11/7/2012 Page 28 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 7 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): 0.28 μg/m 3
Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

Exposure Units Results (Stack) Results (Fugitive) ASSUMPTIONS

ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)

Cancer

LADD pot (mg/kg/day) 2.09E-05 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 1.14E-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:11/7/2012 Page 29 of 77

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 m11/7/2012 Page 30 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:8 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:11/7/2012 Page 31 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 8 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 0.00

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 9.10 21.16 33.51 39.67

ALL 10 39.60 13.29 7.76 7.57 66.16 197.14 337.63 346.10

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 4.47E-06 3.25E-05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.29E-04 1.67E-03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 1.77E-03 1.65E-02 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/7/2012 Page 32 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 8 RELEASE ACTIVITY: Max ADR SIC CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)
ASSOCIATED SIC CODES: Subset of 4952

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 33 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 8 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): 0.22 μg/m 3
Max 24 Hour Average Air Concentration (Stack): 17.60 μg/m 3

Exposure Units Results (Stack) Results (Fugitive) ASSUMPTIONS

ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)

Cancer

LADD pot (mg/kg/day) 1.63E-05 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 8.88E-05 N/A 30.00 75.00 NA NA
Acute

ADR pot

(mg/kg/day) 3.24E-03 N/A NA 1 day 71.80 0.55

Inhalation Comments:11/7/2012 Page 34 of 77

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 m11/7/2012 Page 35 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:9 Number of Release Sites: Release Activity: PDM1 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:11/7/2012 Page 36 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 9 Number of Site s: RELEASE ACTIVITY: PDM1 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 0.00

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 9.10 21.16 33.51 39.67

ALL 10 39.60 13.29 7.76 7.57 66.16 197.14 337.63 346.10

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 4.47E-06 3.25E-05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.29E-04 1.67E-03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 1.77E-03 1.65E-02 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/7/2012 Page 37 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 9 RELEASE ACTIVITY: PDM1 SIC CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)
ASSOCIATED SIC CODES: Subset of 4952

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 38 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:10 Number of Release Sites: Release Activity: PDM2 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:11/7/2012 Page 39 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 10 Number of Site s: RELEASE ACTIVITY: PDM2 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 0.00

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 1.46 3.39 5.37 6.36

ALL 10 39.60 13.29 7.76 7.57 10.61 31.60 54.12 55.48

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 1.31E-06 9.52E-06 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 6.71E-05 4.88E-04 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 2.83E-04 2.64E-03 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/7/2012 Page 40 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 10 RELEASE ACTIVITY: PDM2 SIC CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)
ASSOCIATED SIC CODES: Subset of 4952

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 41 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:11 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:11/7/2012 Page 42 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 11 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 0.00

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 INGESTION EXPOSURE ESTIMATES

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

Units 50% 10% 50% 10%

Cancer

LADD pot 5.06E-06 3.68E-05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.60E-04 1.89E-03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:11/7/2012 Page 43 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 11 RELEASE ACTIVITY: Max LADD SIC CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)
ASSOCIATED SIC CODES: Subset of 4952

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 44 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 11 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

Exposure Units Results ASSUMPTIONS
ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 4.02E-05 30.00 75.00 71.80 1.40 LADC pot (mg/L) 2.06E-03 30.00 75.00 NA NA

REMARKS:11/7/2012 Page 45 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 11 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): 0.25 μg/m 3
Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

Exposure Units Results (Stack) Results (Fugitive) ASSUMPTIONS

ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)

Cancer

LADD pot (mg/kg/day) 1.85E-05 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 1.01E-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:11/7/2012 Page 46 of 77

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 m11/7/2012 Page 47 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:12 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:11/7/2012 Page 48 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 12 Number of Site s: RELEASE ACTIVITY: Max ADR

SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EXPOSED POPULATION: Adult

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

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 4.54E-02 0.13 0.21 0.25

ALL 10 11.11 1.94 1.06 0.96 0.51 2.94 5.38 5.94

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 2.43E-07 2.74E-06 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 1.24E-05 1.41E-04 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 1.08E-05 2.46E-04 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/7/2012 Page 49 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 12 RELEASE ACTIVITY: Max ADR

SIC CODE DESCRI PTION: POTW's (All facilities)

ASSOCIATED SIC CODES: 4952

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 50 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 12 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): 8.23E-02 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 1.50 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 Concentr ation (Stack): 5.26E-03 μg/m 3
Max 24 Hour Average Air Concentration (Stack): 3.84E-02 μg/m 3

Exposure Units Results (Stack) Results (Fugitive) ASSUMPTIONS

ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)

Cancer

LADD pot (mg/kg/day) 3.87E-07 6.05E-06 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 2.10E-06 3.29E-05 30.00 75.00 NA NA
Acute

ADR pot

(mg/kg/day) 7.06E-06 2.76E-04 NA 1 day 71.80 0.55

Inhalation Comments:11/7/2012 Page 51 of 77

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 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 m11/7/2012 Page 52 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:13 Number of Release Sites: Release Activity: PDM1 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:11/7/2012 Page 53 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 13 Number of Site s: RELEASE ACTIVITY: PDM1

SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EXPOSED POPULATION: Adult

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

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 4.54E-02 0.13 0.21 0.25

ALL 10 11.11 1.94 1.06 0.96 0.51 2.94 5.38 5.94

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 2.43E-07 2.74E-06 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 1.24E-05 1.41E-04 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 1.08E-05 2.46E-04 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/7/2012 Page 54 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 13 RELEASE ACTIVITY: PDM1

SIC CODE DESCRI PTION: POTW's (All facilities)

ASSOCIATED SIC CODES: 4952

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 55 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

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:11/7/2012 Page 56 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 14 Number of Site s: RELEASE ACTIVITY: Max LADD

SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EXPOSED POPULATION: Adult

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

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 INGESTION EXPOSURE ESTIMATES

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

Units 50% 10% 50% 10%

Cancer

LADD pot 2.43E-07 2.74E-06 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 1.24E-05 1.41E-04 mg/L 0.00 0.00 mg/kg

Acute

ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:11/7/2012 Page 57 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 14 RELEASE ACTIVITY: Max LADD

SIC CODE DESCRI PTION: POTW's (All facilities)

ASSOCIATED SIC CODES: 4952

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 58 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 14 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

Exposure Units Results ASSUMPTIONS
ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 1.51E-05 30.00 75.00 71.80 1.40 LADC pot (mg/L) 7.76E-04 30.00 75.00 NA NA

REMARKS:11/7/2012 Page 59 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 14 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): 8.23E-02 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 Concentr ation (Stack): 5.26E-03 μg/m 3
Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

Exposure Units Results (Stack) Results (Fugitive) ASSUMPTIONS

ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)

Cancer

LADD pot (mg/kg/day) 3.87E-07 6.05E-06 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 2.10E-06 3.29E-05 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:11/7/2012 Page 60 of 77

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 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 m11/7/2012 Page 61 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

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:11/7/2012 Page 62 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 15 Number of Site s: RELEASE ACTIVITY: Max ADR

SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EXPOSED POPULATION: Adult

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

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 0.96 2.73 4.48 5.33

ALL 10 11.11 1.94 1.06 0.96 10.80 61.86 113.21 125.00

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 4.08E-06 4.62E-05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.09E-04 2.37E-03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 2.28E-04 5.17E-03 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/7/2012 Page 63 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 15 RELEASE ACTIVITY: Max ADR

SIC CODE DESCRI PTION: POTW's (All facilities)

ASSOCIATED SIC CODES: 4952

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 64 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

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 Concentr ation (Stack): 8.86E-02 μg/m 3
Max 24 Hour Average Air Concentration (Stack): 0.81 μg/m 3

Exposure Units Results (Stack) Results (Fugitive) ASSUMPTIONS

ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)

Cancer

LADD pot (mg/kg/day) 6.52E-06 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 3.54E-05 N/A 30.00 75.00 NA NA
Acute

ADR pot

(mg/kg/day) 1.49E-04 N/A NA 1 day 71.80 0.55

Inhalation Comments:11/7/2012 Page 65 of 77

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 m11/7/2012 Page 66 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:16 Number of Release Sites: Release Activity: PDM1 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:11/7/2012 Page 67 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 16 Number of Site s: RELEASE ACTIVITY: PDM1

SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EXPOSED POPULATION: Adult

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

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 0.96 2.73 4.48 5.33

ALL 10 11.11 1.94 1.06 0.96 10.80 61.86 113.21 125.00

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 4.08E-06 4.62E-05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.09E-04 2.37E-03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 2.28E-04 5.17E-03 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/7/2012 Page 68 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 16 RELEASE ACTIVITY: PDM1

SIC CODE DESCRI PTION: POTW's (All facilities)

ASSOCIATED SIC CODES: 4952

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 69 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450 Assessor: Cinalli/BC

ENVIRONMENTAL RELEASES

Scenario#:17 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:11/7/2012 Page 70 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

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

SCENARIO #: 17 Number of Site s: RELEASE ACTIVITY: Max LADD

SIC-CODE DESCRIPTION: POTW's (All facilities) SIC-CODE (S): 4952 EXPOSED POPULATION: Adult

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

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 INGESTION EXPOSURE ESTIMATES

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

Units 50% 10% 50% 10%

Cancer

LADD pot 4.08E-06 4.62E-05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.09E-04 2.37E-03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:11/7/2012 Page 71 of 77

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P-12-0450

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 17 RELEASE ACTIVITY: Max LADD

SIC CODE DESCRI PTION: POTW's (All facilities)

ASSOCIATED SIC CODES: 4952

SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

1000.00 High11/7/2012 Page 72 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 17 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

Exposure Units Results ASSUMPTIONS
ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot (mg/kg/day) 1.41E-05 30.00 75.00 71.80 1.40 LADC pot (mg/L) 7.25E-04 30.00 75.00 NA NA

REMARKS:11/7/2012 Page 73 of 77

STANDARD REVIEW EXPOSURE REPORT Chemical ID: P-12-0450

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 17 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 Concentr ation (Stack): 8.86E-02 μg/m 3
Max 24 Hour Average Air Concentration (Stack): N/A μg/m 3

Exposure Units Results (Stack) Results (Fugitive) ASSUMPTIONS

ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)

Cancer

LADD pot (mg/kg/day) 6.52E-06 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 3.54E-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:11/7/2012 Page 74 of 77

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 m11/7/2012 Page 75 of 7711/7/2012 Page 76 of 7711/7/2012 Page 77 of 77