1/28/2015 Page of



### INITIAL REVIEW EXPOSURE REPORT (IRExR)

Chemical ID: P -15-0141 Reviewer: Kwon/BC

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

Exposure Scenario 1 Water Landfill St ack Air Fugitive Air

Release activity(ies) 2 ;

exposure c alculation(s) 3 Drinking Water Fish Ingestion 7Q10 4

CC = 14 PDM

Days

Exceeded LADD ADR LADD ADR LADD

ADR LADD ADR LADD

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

REPACK: max acute

eco --- --- --- --- 2.48E+00

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

REPACK: PDM1

--- --- --- --- 2.48E+00

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

PROC: max acute eco

--- --- --- --- 2.54E+01

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

USE: max acute eco

--- --- --- --- 1.99E+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 Probab ilistic 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 av erage daily streamflow

of the seven consecutive days of lowest flow within a ten year period.1/28/2015 Page of



### Results Table: Exposure Based (XB)/Persistent (P2B2) Criteria

Parameter Exp Based Persistent Exceedance Value

Drinking (Surface) Water Dose (mg/k g/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?



### Fate test recommendations?: (default is NA)1/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0141 Assessor: Kwon/BC

ENVIRONMENTAL RELEASES

Scenario#: 1 Number of Release Sites:

Release Activity: REPACK: Max ADR

Release Des cription: 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:1/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0141

SI TE

- SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 1 RELEASE ACTIVITY: REPACK: Max ADR

F ACILITY NAME:

FACILITY LOCATION:

RECEIVING WATER NAME:

REACH NUMBER: FACILITY ON REACH: DISCHARGE TYPE:

NPDES PERMIT #: EXPOSED POPULATION: Adult

WWT

REMO VAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD)

CONCENTRATION (μg/L) 0.74 1.71 2.48 3.07 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 2.80E

- 06 mg/kg/day 6.39 E- 08 mg/kg/day

LADC pot 2.16E

- 04 mg/L 6.82E

- 04 mg/kg

Acute

ADR pot 6.47E

- 05 mg/kg/day 8.20E

- 06 mg/kg/day

Surface Water Comments:1/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0141 Assessor: Kwon/BC

ENVIRONMENTAL RELEASES

Scenario# :2 Number of Release Sites:

Release Activity: REPACK: PDM1

Release Description: WATER LANDFILL

Non

- sludge/Sludge STACK FUGITIVE

Total Releases:

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non

- sludge/Sludge

Re lease Days/yr:

Per Site Release:

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

Remarks:1/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0141

SI TE

- SPECIFIC HUMAN AND AQUAT IC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 2 RELEASE ACTIVITY: REPACK: 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 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD)

CONCENTRATION (μg/L) 0.74 1.71 2.48 3.07 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 2.80E

- 06 mg/kg/day 6.39 E- 08 mg/kg/day

LADC pot 2.16E

- 04 mg/L 6.82E

- 04 mg/kg

Acute

ADR pot 6.47E

- 05 mg/kg/day 8.20E

- 06 mg/kg/day

Surface Water Comments:1/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P

- 15

- 0141

SITE

- SPECIFIC HUMAN AND AQUATIC EXPOSURES T O SURFACE WATER RELEASES

SCENARIO NUMBER: 2 RELEASE ACTIVITY: REPACK: 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): 7 q10 FLOW (MLD): EFFLUENT FLOW (MLD):

RESULTS

COC (μg/L) Percent of Year

COC Exceeded Number of Days

COC Exceeded Release

days/year Pre

- treatment

Loading

(kg/site/day) Waste Water

Treatment (%)

14.001/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0141 Assessor: Kwon/BC

ENVIRONMENTAL RELEASES

Scenario#: 3 Number of Release Sites:

Release Activity: PROC: 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:1/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0141

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 3 Number of Sites: RELEASE ACTIVITY: PROC:

Max ADR

SIC

- CODE DESCRIPTION:

SIC

- CODE (S): EXPOSED PO PULATION: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 3.16

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FAC ILITY STREAM FLOW (MLD) STREAM CONC. (μg/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q5 7Q10 1Q10

ALL 50 0.64 1.82 3.09 3.49

ALL 10 5.58 11.17 25.41 22.51

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 3.85E

- 08 3.36E

- 07 mg/kg/day 8.76E

- 10 7.66E

- 09 mg/kg/day

LADC pot 2.96E

- 06 2.59E

- 05 mg/L 9.3 5E

- 06 8.17E

- 05 mg/kg

Acute

ADR pot 6.90E

- 05 4.23E

- 04 mg/kg/day 7.03E

- 06 6.14E

- 05 mg/kg/day

SIC Code Comments:1/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0141 Assessor: Kwon/BC

ENVIRONMENTAL RELEASES

Scenario#: 4 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:1/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0141

SIC

- CODE BASED HUMAN AND AQUATIC EXPOS URES TO SURFACE WATER RELEASES

SCENARIO #: 4 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 3.16

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 0.17 0.48 0.79 0.94

ALL 10 11.11 1.94 1.06 0.96 1.90 10.88 19.91 21.98

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 2.53E

- 09 2.86E

- 08 mg/kg/day 5.77E

- 11 6.52E

- 10 mg/kg/day

LADC pot 1.95E

- 07 2.20E

- 06 mg/L 6.16E

- 07 6.96E

- 06 mg/kg

Acute

ADR pot 1.82E

- 05 4.12E

- 04 mg/kg/day 1.85E

- 06 2.09E

- 05 mg/kg/day

SIC Code Comments:1/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0141

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 4 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 3.16

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 0.84 2.40 3.94 4.68

ALL 10 11.11 1.94 1.06 0.96 9.50 54.38 99.53 109.90

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Expos ure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 1.27E

- 08 1.43E

- 07 mg/kg/day 2.89E

- 10 3.26E

- 09 mg/kg/day

LADC pot 9.74E

- 07 1.10E

- 05 mg/L 3.08E

- 06 3.48E

- 05 mg/kg

Acute

ADR pot 9.08E

- 05 2.06E

- 03 mg/kg/day 9.26E

- 06 1.05E

- 04 mg/kg/day

SIC Code Comments:1/28/2015 Page of

INITIAL REVIEW EXPOSURE REPORT

CHEMICAL ID: P

- 15

- 01411/28/2015 Page of1/28/2015 Page of1/28/2015 Page of1/28/2015 Page of1/28/2015 Page of1/28/2015 Page of