7/24 /13 Page of



### INITIAL REVIEW EXPOSURE REPORT (IRExR)

Chemical ID: P -13- 0678 R eviewer: Flessner/AG

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

Exposure

Scenario 1 Water Lan dfill 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/da y mg/kg/day mg/kg/day mg/kg/day

USE: Max

ADR: max

acute eco 2.94E

03 --- --- --- --- --- --- 2.87E

- 03

--- --- ---

USE: Max

LADD --- 1.70E

- 07

--- --- --- --- --- --- 1.25E

- 06

--- ---

1 Exposure scenario titles consist of release activity followed by ex posure 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 l ocation.

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 co ncern.

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:7/24 /13 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0678 Assessor: Flessner/AG

ENVIRONMENTAL RELEASES

Scenario#: 1 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 Release:

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

Remarks:7/24 /13 Page of

INITIAL REVI EW EXPOSURE REPORT

Chemical ID : P- 13

- 0678

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 1 Number of Sites: RELEASE ACTIVITY: USE: Max

ADR

SIC

- CODE DESCRIPTION:

SIC -C ODE (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

- SU RFACE WATER

PLANT

TYPE % ILE

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 0.12 0.31 0.50 0.60

ALL 10 3.97 35.23 65.96 65.96

DRINK ING 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 4.93E

- 09 1.70E

- 07 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.53E

- 07 8.70E

- 06 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 2.60E

- 05 2.94E

- 03 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:7/24 /13 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0678

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 1 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: %

Tot al 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: 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): 1.70E

- 02 μ g/m 3

Max 24 Hour Average Air Concentration (Stack): 15.60 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) 1.25E

- 06 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 6.80E

- 06 N/A 30.00 75.00 NA NA

Acute

ADR pot (mg/kg/day) 2.87E

- 03 N/A NA 1 day 71.80 0.55

Inhalation Comments:7/24 /13 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

Open ing: 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 m7/24 /13 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0678 Assessor: Flessner/AG

ENVIRONMENTAL RELEASES

Scenario#: 2 Number of Releas e Sites:

Release Activity: USE: 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:7/24 /13 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0678

SIC

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

SCENARIO #: 2 Number of Sites: RELEASE ACTIVITY: USE: 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. (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 4.93E

- 09 1.70E

- 07 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.53E

- 07 8.70E

- 06 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:7/24 /13 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0678

INHALATION EXPOSURE ESTIMATES (POST

- TREATMENT)

SCENARIO #: 2 RELEASE ACTIVITY: USE: 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 μ g/m 3

Max 24 Hour Average Air

Con centration(Fugitive): N/A 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): 1.70E

- 02 μ g/m 3

Max 24 H our 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) 1.25E

- 06 N/A 30.00 75.00 71.80 0.55

LADC pot (mg/m 3 ) 6.80 E- 06 N/A 30.00 75.00 NA NA

Acute

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

Inhalation Comments:7/24 /13 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 m