7/31/13 page of



### INITIAL REVIEW EXPOSURE REPORT (IRExR)

Chemical ID: P -13- 0573 Reviewer: Cinalli/SS

Results Table: Dose, Concentration, and Days Exceeded Results Summary

Exposure Scenario 1 Water Landfi ll Stack Air Fugitive Air

Drinking Water Fish Ingestion

ADR LADD ADR LADD 7Q10 4

CC = 1 PDM

Days

Exceede

d 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/k g/day mg/kg/day mg/kg/day

Max ADR:

max acute eco 1.03E

- 02

--- 1.20E

- 01

--- 2.30E+02

--- --- 1.34E

- 04

--- 9.05E

- 04

---

PDM1

--- --- --- --- 2.30E+02

--- --- --- --- ---

Max LADD

--- 1.03E

- 04

--- 2.20E

- 03

--- --- 7.35E

- 06

--- 1.01E

- 05

- -- 2.75E

- 05

Max ADR:

max acute eco 4.00E

- 01

--- 4.85E+00

--- 8.98E+03

--- --- 5.22E

- 03

--- 1.18E

- 02

---

Max LADD

--- 2.08E

- 04

--- 4.45E

- 03

--- --- 4.47E

- 05

--- 2.06E

- 05

--- 1.86E

- 05

Max ADR:

max acute eco 1.80E

- 01

--- 2.19E+00

--- 4.04 E+03

--- --- 2.35E

- 03

--- --- ---

PDM1

--- --- --- --- 4.04E+03

--- --- --- --- ---

Max LADD

--- 2.08E

- 04

--- 4.46E

- 03

--- --- 4.48E

- 05

--- 2.06E

- 05

--- ---

1 Exposure scenario titles consist of release activity followed by exposure calcu lation abbreviation.

2 Release activities are from engineering report's Manufacturing (Mfg), Processing (Proc) and Use release

activity labels.Multiple release activities are combined in one exposure scenario if their releases occur at

same location.

3 Exp osure 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 co lumn 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.7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573 Assessor: Cinalli/SS

ENVIRONMENTAL RELEASES

Scenario#: 1 Numb er 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 Day s/yr:

Per Site Release:

(kg/site/day) (kg/site/day ) (kg/site/day) (kg/site/day)

Remarks:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 1 Number of Sites: RELEASE ACTIVITY:

Max ADR

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEA SE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 5000.00

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 0.40 1.08 1.73 2.09

ALL 10 13.83 122.73 229.79 229.79

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units Dri nking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 2.98E

- 06 1.03E

- 04 mg/kg/day 6.38E

- 05 2.20E

- 03 mg/kg/day

LADC pot 1.53E

- 04 5.26E

- 03 mg/L 0.76 26.29 mg/kg

Acute

ADR pot 9.04E

- 05 1 .03E

- 02 mg/kg/day 3.61E

- 03 0.12 mg/kg/day

SIC Code Comments:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 1 RELEASE ACTIVITY: Max ADR

RELEASE DESCRIPTION:

METHOD OF CALCULAT ION: 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

M ax Annual Average Air Concentration

(Fugitive): 0.37 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): 4.92 μ g/m 3

Per Site Stack Release: kg /site/day

Stack Release Days per Year: days

% Removal via Stack Release: %

T otal Stack Release: kg/yr

M ax Annual Average Air Concentration (Stack): 0.14 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): 0.73 μ g/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) 1.01E

- 05 2.75E

- 05 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 5.52E

- 05 1.50E

- 04 30.00 75.00 NA NA

Acute

ADR pot (mg/kg/day) 1.34E

- 04 9.05E

- 04 NA 1 day 71.80 0.55

Inhalation Comments:7/31/13 page of

Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: 3.00 m

Inside Stack

Diameter: 0.10 m Length of Release

Opening: 10.00 m

Stack Gas Exit

Velocity: 0.10 m/sec Width of Release

Opening: 10.00 m

Stack Gas

Te mperature: 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

Downwas h Information:

Facility Length: NA m

Facility Width: NA m

Facility Height: NA m7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573 Assessor: Cinalli/SS

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:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 2 Number of Sites: RELEASE ACTIVITY:

PDM1

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATM ENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 5000.00

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 0.40 1.08 1.73 2.09

ALL 10 13.83 122.73 229.79 229.79

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exp osure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 2.98E

- 06 1.03E

- 04 mg/kg/day 6.38E

- 05 2.20E

- 03 mg/kg/day

LADC pot 1.53E

- 04 5.26E

- 03 mg/L 0.76 26.29 mg/kg

Acute

ADR pot 9.04E

- 05 1.03E

- 02 mg/kg/day 3.61E

- 03 0.12 mg/kg/day

SIC Code Comments:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P- 13

- 0573

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 2 RELEASE ACTIVITY: PDM1

SIC CODE DESC RIPTION:

ASSOCIATED SIC CODES:

SIC CODE RESULTS

COC (μg/L) Percent of

Year COC

Exceeded Number of

Days COC

Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis

1.00 High7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573 Assessor: Cinalli/SS

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:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 3 Number of Sites: RE LEASE 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 5000.00

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 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%

C ancer

LADD pot 2.98E

- 06 1.03E

- 04 mg/kg/day 6.38E

- 05 2.20E

- 03 mg/kg/day

LADC pot 1.53E

- 04 5.26E

- 03 mg/L 0.76 26.29 mg/kg

Acute

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

SIC Code Comments:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P

- 13

- 0573

DR INKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 3 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 mi gration None

Negligible to slow > 4.5 3.21E

- 6

Slow <4.5 to 3.5 2.67E

- 5

Moderate <3.5 to 2.5 5.95E

- 5

Rapid <2.5 7.55E

- 5

Exposure Units Results ASSUMPTIONS

ED

(years) AT

(years) BW

(kg) IR

(L/day)

Cancer

LADD pot (mg/kg/day) 7.35E

- 06 30.00 75.00 71.80 1.40

LADC pot (mg/L) 3.77E

- 04 30.00 75.00 NA NA

REMARKS:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

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 Fugit ive Release: kg/yr

M ax Annual Average Air Concentration

(Fugitive): 0.37 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): N/A μ g/m 3

Per Site Stack Release: kg /site/day

Stack Release Days per Year: days

% Removal via Stack Releas e: %

T otal Stack Release: kg/yr

M ax Annual Average Air Concentration (Stack): 0.14 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): N/A μ g/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) 1.01E

- 05 2.75E

- 05 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 5.52E

- 05 1.50E

- 04 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:7/31/13 page of

Stack Paramete r 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 m7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573 Assessor: Cinalli/SS

ENVIRONMENTAL RELEASES

Scenario#: 4 Number of Releas e 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:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 4 Number of Sites: RELEASE ACTIVITY:

Max ADR

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATM ENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 5000.00

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STR EAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 15.70 42.29 67.44 81.85

ALL 10 540.33 4795.45 8978.72 8978.72

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 6.04E

- 06 2.08E

- 04 mg/kg/day 1.29E

- 04 4.45E

- 03 mg/kg/day

LADC pot 3.10E

- 04 1.07E

- 02 mg/L 1.55 53.29 mg/kg

Acute

ADR pot 3.53E

- 03 0.40 mg/kg/day 0.14 4.85 mg/kg/day

SIC Code Comments:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 4 RELEASE ACTIVITY: Max ADR

RELEASE DESCRIPTION:

METHO D 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

M ax Annual Average Air Concentration

(Fugitive): 0.25 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): 64.20 μ g/m 3

Per Site Stack Release: kg /site/day

Stack Release Days per Year: days

% Removal via Stack Release: %

T otal Stack Rele ase: kg/yr

M ax Annual Average Air Concentration (Stack): 0.28 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): 28.40 μ g/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) 2.06E

- 05 1.86E

- 05 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 1.12E

- 04 1.01E

- 04 30.00 75.00 NA NA

Acute

ADR pot (mg/kg/day) 5.22E

- 03 1.18E

- 02 NA 1 day 71.80 0.55

Inhalation Comments:7/31/13 page of

Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: 3.00 m

Inside Stack

Diameter: 0.10 m Length of Release

Opening: 10.00 m

Stack Gas Exit

Velocity: 0.10 m/sec Width of Release

Opening: 10.00 m

Sta ck 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 m7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573 Assessor: Cinalli/SS

ENVIRONMENTAL RELEASES

Scenario#: 5 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:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSUR ES TO SURFACE WATER RELEASES

SCENARIO #: 5 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 5000.00

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 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 6.04E

- 06 2.08E

- 04 mg/kg/day 1.29E

- 04 4.45E

- 03 mg/kg/day

LADC pot 3.10E

- 04 1.07E

- 02 mg/L 1.55 53.29 mg/kg

Acute

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

SIC Code Comm ents:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P

- 13

- 0573

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 5 ACTIVITY: Max LADD

RELEASE DESCRIPTION:

EXPOSED POPULATION: Adult

NUMBER

OF

SITES NON

- SLUDGE

LANDFILL

REL EASE 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 ASS UMPTIONS

ED

(years) AT

(years) BW

(kg) IR

(L/day)

Cancer

LADD pot (mg/kg/day) 4.47E

- 05 30.00 75.00 71.80 1.40

LADC pot (mg/L) 2.29E

- 03 30.00 75.00 NA NA

REMARKS:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

INHALATION EXPOSURE ESTIMA TES (POST

- TREATMENT)

SCENARIO #: 5 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 Y ear: days

% Removal via Fugitive Release: %

Total Fugitive Release: kg/yr

M ax Annual Average Air Concentration

(Fugitive): 0.25 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): N/A μ g/m 3

Per Site Stack Release: kg /site/day

Stack Release Days per Year: days

% Removal via Stack Release: %

T otal Stack Release: kg/yr

M ax Annual Average Air Concentration (Stack): 0.28 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): N/A μ g/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) 2.06E

- 05 1.86E

- 05 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 1.12E

- 04 1.01E

- 04 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:7/31/13 page of

Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: 3.00 m

Inside Stack

Diameter: 0.10 m Length of Release

Opening: 1 0.00 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: 100.0 0 m

Meteorological Class: Full

Stability Class: NA

Wind Speed: NA

Downwash Information:

Facility Length: NA m

Facility Width: NA m

Facility Height: NA m7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573 Assessor: Cinal li/SS

ENVIRONMENTAL RELEASES

Scenario#: 6 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:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 6 Number of Sites: RELEASE ACTIVITY:

Max ADR

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOS ED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 5000.00

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 7.07 19.04 30.37 36.85

ALL 10 243.28 2159.09 4042.55 4042.55

DRINKING WATER AND F ISH INGESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 6.04E

- 06 2.08E

- 04 mg/kg/day 1.29E

- 04 4.46E

- 03 mg/kg/day

LADC pot 3.10E

- 04 1.07 E- 02 mg/L 1.55 53.32 mg/kg

Acute

ADR pot 1.59E

- 03 0.18 mg/kg/day 6.35E

- 02 2.19 mg/kg/day

SIC Code Comments:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 6 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 Fu gitive Release: kg/yr

Max Annual Average Air Concentration

(Fugitive): 0.00 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): 0.00 μ g/m 3

Per Site Stack Release: kg /site/day

Stack Release Days per Year: days

% Removal via Stack Relea se: %

T otal Stack Release: kg/yr

M ax Annual Average Air Concentration (Stack): 0.28 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): 12.80 μ g/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) 2.06E

- 05 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 1.12E

- 04 N/A 30.00 75.00 NA NA

Acute

ADR pot (mg/kg/day) 2.35E

- 03 N/A NA 1 day 71.80 0.55

Inhalation Comments:7/31/13 page of

Stack Parameter D ata 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 m7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573 Assessor: Cinalli/SS

ENVIRONMENTAL RELEASES

Scenario#: 7 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:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SU RFACE WATER RELEASES

SCENARIO #: 7 Number of Sites: RELEASE ACTIVITY:

PDM1

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/da y) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 5000.00

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 7.07 19.04 30.37 36.85

ALL 10 243.28 2159.09 4042.55 4042.55

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking

Wate r Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 6.04E

- 06 2.08E

- 04 mg/kg/day 1.29E

- 04 4.46E

- 03 mg/kg/day

LADC pot 3.10E

- 04 1.07E

- 02 mg/L 1.55 53.32 mg/kg

Acute

ADR pot 1.59E

- 03 0.18 mg/kg/day 6.35E

- 02 2.19 mg/kg /day

SIC Code Comments:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P- 13

- 0573

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 7 RELEASE ACTIVITY: PDM1

SIC CODE DESCRIPTION:

ASSOCIA TED SIC CODES:

SIC CODE RESULTS

COC (μg/L) Percent of

Year COC

Exceeded Number of

Days COC

Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis

1.00 High7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573 Ass essor: Cinalli/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:7/31/13 page of

INITIAL REVIEW EXPOSUR E REPORT

Chemical ID : P- 13

- 0573

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 8 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 5000.00

AQUATIC EXPOSURE ESTIMATES

- SURFACE WAT ER

PLANT

TYPE % ILE

FACILITY STREAM FLOW (MLD) STREAM CONC. (μg/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 6.04E

- 06 2.08E

- 04 mg/kg/day 1.29E

- 04 4.46E

- 03 mg/kg/day

LADC pot 3.10E

- 04 1.07E

- 02 mg/L 1.55 53.32 mg/kg

Acute

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

SIC Code Comments:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P

- 13

- 0573

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 8 ACTIVITY: Max LADD

RELE ASE 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 releas e.

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) 4.48E

- 05 30.00 75.00 71.80 1.40

LADC pot (mg/L) 2.30E

- 03 30.00 75.00 NA NA

REMAR KS:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 8 RELEASE ACTIVITY: Max LADD

RELEASE DESCRIPTION:

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Site s:

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 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): N/A μ g/m 3

Per Site Stack Release: kg /site/day

Stack Release Days per Year: days

% Removal via Stack Release: %

T otal Stack Release: kg/yr

M ax Annual Average Air Concentration (Stack): 0.28 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): N/A μ g/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) 2.06E

- 05 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 1.12E

- 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:7/31/13 page of

Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release He ight: 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 m7/31/13 page of



### INITIAL REVIEW EXPOSURE REPORT (IRExR)

Chemical ID: P -13- 0573 Reviewer: Cinalli/SS

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 = 1 PDM

Days

Exceede

d 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/d ay mg/kg/day

Max LADD

--- --- --- --- ---

--- 2.21E

- 05

--- --- --- ---

1 Exposure scenario titles consist of release activity followed by exposure calculation abbreviation.

2 Release activities are from engineering report's Manufacturing (Mfg), Processing (Proc) and Use release

activity labels.Multiple release activities are combined in one exposure scenario if their releases occur at

same location.

3 Exposure calculations are Acute Dose Rate (ADR), Lifetime Average Daily Dose (LADD), an d

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.7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0573 Assessor: Cinalli/SS

ENVIRONMENTAL RELEASES

Scenario#: 1 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:7/31/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P

- 13

- 0573

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 1 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) 2.21E

- 05 30.00 75.00 71.80 1.40

LADC pot (mg/L) 1.13E

- 03 30.00 75.00 NA NA

REMARKS: