9/2/2015 Page 1 of 34



### POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Reviewer: Bevington/SD
Results Table: Dose, Concentration, and Days Exceeded Results Summary Exposure Scenario 1 Water Landfill Stack Air Fugitive Air

Release activity(ies) 2 ; exposure calculation(s) 3 Drinking Water Fish Ingestion 7Q10 4 CC =1 PDM Days Exceeded LADD ADR LADD ADR LADD ADR LADD ADR LADD

mg/kg/day mg/kg/day mg/kg/day mg/kg/day μ g/l # Days mg/kg/day mg/kg/day mg/kg/day mg/kg/day mg/kg/day
PROC 2a-TX: max acute eco --- --- --- --- 4.50E-01 --- --- --- --- --- ---

PROC 2a-TX: PDM1 --- --- --- --- 4.50E-01 --- --- --- --- --- PROC 2a-LA: max acute eco --- --- --- --- 1.27E-03 --- --- --- --- --- ---
PROC 2a-LA: PDM1 --- --- --- --- 1.27E-03 --- --- --- --- --- PROC 2a-NJ: max acute

eco --- --- --- --- 4.75E-02 --- --- --- --- --- ---

PROC 2a-NJ: PDM1 --- --- --- --- 4.75E-02 --- --- --- --- --- PROC 2b: max acute

eco --- --- --- --- 4.51E+00 --- --- --- --- --- ---

USE 1a: max acute eco --- --- --- --- 5.40E-01 --- --- --- --- --- ---
USE 1a: PDM1 --- --- --- --- 5.40E-01 --- --- --- --- ---
USE 1a: PDM2 --- --- --- --- 2.60E-01 --- --- --- --- ---
USE 1b: max acute eco --- --- --- --- 6.30E-01 --- --- --- --- --- ---
USE 1b: PDM1 --- --- --- --- 6.30E-01 --- --- --- --- ---
USE 1b: PDM2 --- --- --- --- 3.50E-01 --- --- --- --- ---
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 ac tivities are combined in one e xposure 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 al l three exposure calculati ons per exposure scenario. CC is the aquatic conc entration of concern. 4 This column displays concentration values for the 7Q10 str eamflow, 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 NA Fish Ingestion Dose (mg/kg/day) No NA Inhalation Dose (mg/kg/day) No NA Groundwater Dose (mg/kg/day) No NA Surface Water Release After Treatment (kg/yr) No NA Total Release After Treatment (kg/yr) No NA Consumer Use? No Fate test recommendations?: (default is NA)9/2/2015 Page 2 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:1 Number of Release Sites: Release Activity: PROC 2a-TX: 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:9/2/2015 Page 3 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:1 RELEASE ACTIVITY: PROC 2a-TX: 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) 6.68E-02 0.30 0.45 0.55 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 5.53E-08 mg/kg/day 0.00 mg/kg/day

LADC pot 4.26E-06 mg/L 0.00 mg/kg

Acute

ADR pot 1.15E-05 mg/kg/day 0.00 mg/kg/day

Surface Water Comments:9/2/2015 Page 4 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:2 Number of Release Sites: Release Activity: PROC 2a-TX: 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:9/2/2015 Page 5 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:2 RELEASE AC TIVITY: PROC 2a-TX: 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) 6.68E-02 0.30 0.45 0.55 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 5.53E-08 mg/kg/day 0.00 mg/kg/day

LADC pot 4.26E-06 mg/L 0.00 mg/kg

Acute

ADR pot 1.15E-05 mg/kg/day 0.00 mg/kg/day

Surface Water Comments:9/2/2015 Page 6 of 34

POST FOCUS EXPOSURE REPORT Chemical ID: P-15-0324

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 2 RELEASE AC TIVITY: PROC 2a-TX: 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 (%)

1.009/2/2015 Page 7 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:3 Number of Release Sites: Release Activity: PROC 2a-LA: 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:9/2/2015 Page 8 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:3 RELEASE ACTIVITY: PROC 2a-LA: 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) 3.87E-04 1.06E-03 1.27E-03 1.64E-03 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 3.21E-10 mg/kg/day 0.00 mg/kg/day

LADC pot 2.47E-08 mg/L 0.00 mg/kg

Acute

ADR pot 4.01E-08 mg/kg/day 0.00 mg/kg/day

Surface Water Comments:9/2/2015 Page 9 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:4 Number of Release Sites: Release Activity: PROC 2a-LA: 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:9/2/2015 Page 10 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:4 RELEASE AC TIVITY: PROC 2a-LA: 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) 3.87E-04 1.06E-03 1.27E-03 1.64E-03 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 3.21E-10 mg/kg/day 0.00 mg/kg/day

LADC pot 2.47E-08 mg/L 0.00 mg/kg

Acute

ADR pot 4.01E-08 mg/kg/day 0.00 mg/kg/day

Surface Water Comments:9/2/2015 Page 11 of 34

POST FOCUS EXPOSURE REPORT Chemical ID: P-15-0324

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 4 RELEASE AC TIVITY: PROC 2a-LA: 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 (%)

1.009/2/2015 Page 12 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:5 Number of Release Sites: Release Activity: PROC 2a-NJ: 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:9/2/2015 Page 13 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:5 RELEASE ACTIVITY: PROC 2a-NJ: 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) 1.33E-02 3.49E-02 4.75E-02 5.95E-02 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 1.10E-08 mg/kg/day 0.00 mg/kg/day

LADC pot 8.50E-07 mg/L 0.00 mg/kg

Acute

ADR pot 1.32E-06 mg/kg/day 0.00 mg/kg/day

Surface Water Comments:9/2/2015 Page 14 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:6 Number of Release Sites: Release Activity: PROC 2a-NJ: 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:9/2/2015 Page 15 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:6 RELEASE AC TIVITY: PROC 2a-NJ: 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) 1.33E-02 3.49E-02 4.75E-02 5.95E-02 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 1.10E-08 mg/kg/day 0.00 mg/kg/day

LADC pot 8.50E-07 mg/L 0.00 mg/kg

Acute

ADR pot 1.32E-06 mg/kg/day 0.00 mg/kg/day

Surface Water Comments:9/2/2015 Page 16 of 34

POST FOCUS EXPOSURE REPORT Chemical ID: P-15-0324

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 6 RELEASE AC TIVITY: PROC 2a-NJ: 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 (%)

1.009/2/2015 Page 17 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:7 Number of Release Sites: Release Activity: PROC 2b: 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:9/2/2015 Page 18 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

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

SCENARIO #: 7 Number of Site s: RELEASE ACTIVITY:PROC 2b: 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 0.12 0.28 0.45 0.53

ALL 10 39.60 13.29 7.76 7.57 0.88 2.63 4.51 4.62

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 2.56E-08 1.86E-07 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 1.97E-06 1.43E-05 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 1.07E-05 9.97E-05 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:9/2/2015 Page 19 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:8 Number of Release Sites: Release Activity: USE 1a: 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:9/2/2015 Page 20 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

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

SCENARIO #: 8 Number of Sites: RELEASE ACTIVITY:USE 1a: 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 4.58E-03 1.31E-02 2.15E-02 2.55E-02

ALL 10 11.11 1.94 1.06 0.96 5.18E-02 0.30 0.54 0.60

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

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

Units 50% 10% 50% 10%

Cancer

LADD pot 3.66E-09 4.13E-08 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.81E-07 3.18E-06 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 4.95E-07 1.12E-05 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:9/2/2015 Page 21 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:9 Number of Release Sites: Release Activity: USE 1a: 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:9/2/2015 Page 22 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

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

SCENARIO #: 9 Number of Sites: RELEASE ACTIVITY:USE 1a: 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 4.58E-03 1.31E-02 2.15E-02 2.55E-02

ALL 10 11.11 1.94 1.06 0.96 5.18E-02 0.30 0.54 0.60

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

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

Units 50% 10% 50% 10%

Cancer

LADD pot 3.66E-09 4.13E-08 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.81E-07 3.18E-06 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 4.95E-07 1.12E-05 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:9/2/2015 Page 23 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 9 RELEASE ACTIVITY: USE 1a: 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

1.00 High9/2/2015 Page 24 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:10 Number of Release Sites: Release Activity: USE 1a: 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:9/2/2015 Page 25 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

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

SCENARIO #: 10 Number of Sites: RELEASE ACTIVITY:USE 1a: PDM2

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 2.19E-03 6.25E-03 1.03E-02 1.22E-02

ALL 10 11.11 1.94 1.06 0.96 2.48E-02 0.14 0.26 0.29

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-09 8.58E-08 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 5.84E-07 6.60E-06 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 2.37E-07 5.37E-06 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:9/2/2015 Page 26 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 10 RELEASE ACTIVITY: USE 1a: PDM2

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

1.00 High9/2/2015 Page 27 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:11 Number of Release Sites: Release Activity: USE 1b: 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:9/2/2015 Page 28 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

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

SCENARIO #: 11 Number of Sites: RELEASE ACTIVITY:USE 1b: 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 5.34E-03 1.52E-02 2.50E-02 2.97E-02

ALL 10 11.11 1.94 1.06 0.96 6.03E-02 0.35 0.63 0.70

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

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

Units 50% 10% 50% 10%

Cancer

LADD pot 2.73E-09 3.09E-08 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.10E-07 2.38E-06 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 5.76E-07 1.31E-05 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:9/2/2015 Page 29 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:12 Number of Release Sites: Release Activity: USE 1b: 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:9/2/2015 Page 30 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

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

SCENARIO #: 12 Number of Sites: RELEASE ACTIVITY:USE 1b: 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 5.34E-03 1.52E-02 2.50E-02 2.97E-02

ALL 10 11.11 1.94 1.06 0.96 6.03E-02 0.35 0.63 0.70

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

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

Units 50% 10% 50% 10%

Cancer

LADD pot 2.73E-09 3.09E-08 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.10E-07 2.38E-06 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 5.76E-07 1.31E-05 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:9/2/2015 Page 31 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 12 RELEASE ACTIVITY: USE 1b: 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

1.00 High9/2/2015 Page 32 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324 Assessor: Bevington/SD

ENVIRONMENTAL RELEASES

Scenario#:13 Number of Release Sites: Release Activity: USE 1b: 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:9/2/2015 Page 33 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

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

SCENARIO #: 13 Number of Sites: RELEASE ACTIVITY:USE 1b: PDM2

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 2.95E-03 8.41E-03 1.38E-02 1.64E-02

ALL 10 11.11 1.94 1.06 0.96 3.33E-02 0.19 0.35 0.39

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 1.02E-08 1.15E-07 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 7.86E-07 8.88E-06 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 3.18E-07 7.22E-06 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:9/2/2015 Page 34 of 34

POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0324

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 13 RELEASE ACTIVITY: USE 1b: PDM2

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

1.00 High