11/6/13 page of



### INITIAL REVIEW EXPOSURE REPORT (IRExR)

Chemical ID: P -13-0951 Reviewer: Kwon/SS

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 = 3 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/day mg/kg/day

USE: max acute eco

--- --- --- --- 2.66E+03

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

USE: PDM1

--- --- --- --- 2.08E+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 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 conce ntration 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 Base d 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 Re lease After Treatment (kg/yr) NA

Consumer Use? No



### Fate test recommendations?: (default is NA)11/6/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0951 Assessor: Kwon/SS

ENVIRONMENTAL RELEASES

Scenario#: 1 Number of Release Sit es:

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:11/6/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0951

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 1 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) POSTTRE ATMENT

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 50 125.56 44.02 26.80 22.53 22.48 64.11 105.30 125.26

ALL 10 11.11 1.94 1.06 0.96 254.01 1454.64 2662.26 2939.58

DRINKING WATER AND FISH INGESTION EXPOSURE ESTI MATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 9.12E

- 06 1.03E

- 04 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 4.68E

- 04 5.29E

- 03 mg/L 0.00 0.00 mg/kg

Acute

A DR pot 5.36E

- 03 0.12 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/6/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0951 Assessor: Kwon/SS

ENVIRONMENTAL RELEASES

Scenario#: 2 Number of Release Sites:

Release Acti vity: 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:11/6/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0951

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 2 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 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 50 125.56 44.02 26.80 22.53 0.18 0.50 0.82 0.98

ALL 10 11.11 1.94 1.06 0.96 1.98 11.34 20.75 22.92

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposu re Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 9.36E

- 07 1.06E

- 05 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 4.80E

- 05 5.43E

- 04 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 4.18E -05 9.48E

- 04 mg/kg/day 0.00 0.00 mg/kg/day

SIC Code Comments:11/6/13 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P- 13

- 0951

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 2 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

Hi gh