1/11/2012 Page of



### INITIAL REVIEW EXPOSURE REPORT (IRExR)

Chemical ID: P -12-0116 Reviewer: Wong/BC

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

Exposure

Scenario 1 Water Landfil l Stack Air Fugitive Air

Drinking Water Fish Ingestion

ADR LADD ADR LADD 7Q10 4

CC = 9 PDM

Days

Exceeded LADD ADR LADD ADR LADD

Release

activity(ies) 2 ;

exposure

calculation(s) 3 mg/kg/day mg/kg/day mg/kg/day mg/kg/day μg/l # Days mg/kg/day mg/kg/day mg/kg/day mg/kg/day mg/kg/day

MFG: max

acute eco --- --- --- --- 6.45E+03

--- --- 6.20E

- 01

--- --- ---

MFG: PDM1

--- --- --- --- 6.57E+00

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

USE: max

acute eco --- --- --- --- 3.59E+04

--- --- 4.70E

- 01

--- --- ---

USE: PDM1

--- --- --- -- - 9.43E+00

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

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

la bels. 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), 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 (XB)/Persistent (P2B2) Criteria

Parameter Exp Based Persistent Exceedance Value

Drinking (Surface) Water 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) NA

Total Release After Treatment (kg/yr) NA

Consumer Use? No



### Fate test recommendations?: (default is NA)1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 12

- 0116 Assessor: Wong/BC

ENVIRONMENTAL RELEASES

Scenario#: 1 Number of Release Sites:

Release Activity: MFG: 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/d ay ) (kg/site/day) (kg/site/day)

Remarks:1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 12

- 0116

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 1 Number of Sites: RELEASE ACTIVITY: MFG:

Max ADR

SIC

- CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)

SIC

- CODE (S): Subset of 4952 EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 70.80

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 288.00 123.84 78.18 66.05 173.79 404.16 640.20 757.77

ALL 10 39.60 13.29 7.76 7.57 1263.91 3766.06 6449.87 6611.76

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Unit s

50% 10% 50% 10%

Cancer

LADD pot 3.71E

- 06 2.70E

- 05 mg/kg/day 1.13E

- 06 8.19E

- 06 mg/kg/day

LADC pot 1.90E

- 04 1.39E

- 03 mg/L 1.35E

- 02 9.81E

- 02 mg/kg

Acute

ADR pot 3.38E

- 02 0.31 mg/kg/day 2.21E

- 02 0.16 mg/kg/day

SIC Code Comments:1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P- 12

- 0116

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 1 RELEASE ACTIVITY: MFG: Max ADR

SIC CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)

ASSOCIATED SIC CODES: Subs et of 4952

SIC CODE RESULTS

COC (μg/L) Percent of

Year COC

Exceeded Number of

Days COC

Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis

High1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 12

- 0116

INHALATION EX POSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 1 RELEASE ACTIVITY: MFG: 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 μ g/m 3

Max 24 Hour Average Air

Concentration(Fugitive): 0.00 μ g/m 3

Per Site Stack Release: kg/ s ite/day

Stack Release Days per Year: days

% Removal via Stack Release: %

Total Stack Release: kg/ yr

Max Annual Average Air Concentration (Stack): 1.85 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): 3370.00 μ g/m 3

Exposure Un its Results

(Stack) Results

(Fugitive) ASSUMPTIONS

ED

(years) AT

(years) BW

(kg) Inh. Rate

(m 3 /hr)

Cancer

LADD pot (mg/kg/day) 1.36E

- 04 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 7.40E

- 04 N/A 30.00 75.00 NA NA

Acute

ADR pot (mg/kg/day) 0.62 N/A NA 1 day 71.80 0.55

Inhalation Comments:1/11/2012 Page of

Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack

Diameter: 0.10 m Length of Release

Opening: N/A

Stack Gas Exit

Velocity: 0.10 m/sec Width of Release

Opening: N/A

Stack Gas

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 m1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 12

- 0116 Assessor: Wong/BC

E NVIRONMENTAL RELEASES

Scenario#: 2 Number of Release Sites:

Release Activity: MFG: 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:1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 12

- 0116

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 2 Number of Sites: RELEASE ACTIVITY: MFG:

PDM1

SIC

- CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)

SIC

- CODE (S): Subset of 4952 EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 70.80

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 288.00 123.84 78.18 66.05 0.18 0.41 0.65 0.77

ALL 10 39.60 13.29 7.76 7.57 1.29 3.84 6.57 6.74

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposur e Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 7.57E

- 08 5.50E

- 07 mg/kg/day 2.30E

- 08 1.67E

- 07 mg/kg/day

LADC pot 3.88E

- 06 2.82E

- 05 mg/L 2.75E

- 04 2.00E

- 03 mg/kg

Acute

ADR pot 3.44E

- 05 3.21E

- 04 mg/kg/day 2.25E

- 05 1.64E

- 04 mg/kg/day

SIC Code Comments:1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P- 12

- 0116

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 2 RELEASE ACTIVITY: MFG: PDM1

SIC CO DE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)

ASSOCIATED SIC CODES: Subset of 4952

SIC CODE RESULTS

COC (μg/L) Percent of

Year COC

Exceeded Number of

Days COC

Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treat ment (%) High/Avg

Analysis

High1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 12

- 0116 Assessor: Wong/BC

ENVIRONMENTAL RELEASES

Scenario#: 3 Number of Release Sites:

Release Activity: USE: 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 Rele ase:

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

Remarks:1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 12

- 0116

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 3 Number of Sites: RELEASE ACTIVITY: USE: 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 70.80

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 50 125. 56 44.02 26.80 22.53 303.12 864.61 1420.15 1689.30

ALL 10 11.11 1.94 1.06 0.96 3425.74 1.96E+04 3.59E+04 3.96E+04

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 6.48E

- 06 7.32E

- 05 mg/kg/day 1.97E

- 06 2.22E

- 05 mg/kg/day

LADC pot 3.32E

- 04 3.75E

- 03 mg/L 2.35E

- 02 0.27 mg/kg

Acute

ADR pot 7.23E

- 02 1.64 mg/kg/day 3.86E

- 02 0.44 mg/kg/day

SIC Code Comments:1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 12

- 0116

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 3 RELEASE ACTIVITY: USE: 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 μ g/m 3

Max 24 Hour Average Air

Co ncentration(Fugitive): 0.00 μ g/m 3

Per Site Stack Release: k g/site/day

Stack Release Days per Year: days

% Removal via Stack Release: %

Total Stack Release: kg/ yr

Max Annual Average Air Concentration (Stack): 1.40 μ g/m 3

Max 2 4 Hour Average Air Concentration (Stack): 2560.00 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) 1.03E

- 04 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 5.60E

- 04 N/A 30.00 75.00 NA NA

Acute

ADR pot (mg/kg/day) 0.47 N/A NA 1 day 71.80 0.55

Inhalation Comments:1/11/2012 Page of

Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack

Diameter: 0.10 m Length of Release

Opening: N/A

Stack Gas Exit

Velocity: 0.10 m/sec Width of Release

Opening: N/A

Stack Gas

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 m1/11/2012 Page of

INITIAL REV IEW EXPOSURE REPORT

Chemical ID : P- 12

- 0116 Assessor: Wong/BC

ENVIRONMENTAL RELEASES

Scenario#: 4 Number of Release Sites:

Release Activity: USE: 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:1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 12

- 0116

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 4 Number of Sites: RELEASE ACTIVITY: USE:

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 70.80

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 50 125.56 44.02 26.80 22.53 7.96E

- 02 0.23 0.37 0.44

ALL 10 11.11 1.94 1.06 0.96 0.90 5.15 9.43 10.42

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Expo sure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 6.21E

- 07 7.02E

- 06 mg/kg/day 1.88E

- 07 2.13E

- 06 mg/kg/day

LADC pot 3.19E

- 05 3.60E

- 04 mg/L 2.26E

- 03 2.55E

- 02 mg/kg

Acut e

ADR pot 1.90E

- 05 4.31E

- 04 mg/kg/day 1.01E

- 05 1.14E

- 04 mg/kg/day

SIC Code Comments:1/11/2012 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P- 12

- 0116

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 4 RELEASE ACTIVITY: USE: PDM1

SIC CODE DESCRIPTION: POTW's (All facilities)

ASSOCIATED SIC CODES: 4952

SIC CODE RESULTS

COC (μg/L) Percent of

Year COC

Exceeded Number of

Days COC

Exceeded Release

days/year Loading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis

High