1/7/2015 Page of



### STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P -15-0061 Reviewer: Wong/BC

Results Table: Dose, Concentrati on, and Days Exceeded Results Summary

Exposure Scenario 1 Water Landfill Stack Air Fugitive Air

Release activity(ies) 2 ;

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

CC =200 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

USE: Max ADR: max

acute eco 5.67E

- 03

--- --- --- 2.57E+02

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

USE: PDM1

--- --- --- --- 2.57E+02

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

USE: PDM 2

--- --- --- --- 9.97E+01

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

USE: Max LADD

--- 7.07E

- 05

--- --- --- --- 1.49E

- 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), Life ti me 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 7Q1 0 streamflow, which is defined as the average daily streamflow

of the seven consecutive days of lowest flow within a ten year period.

Remarks :1/7/2015 Page of

STANDARD REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0061 Assessor: Wong/BC

ENVIRONMENTAL RE LEASES

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 -s ludge/Sludge

Release Days/yr:

Per Site Release:

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

Remarks:1/7/2015 Page of

STANDARD REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 00 61

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

- CODE (S): EXPOSED POPULATION: Adult

WWT

REMOVAL

(%) RE LEASE

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 13.48 33.92 55.60 67.10

ALL 10 42.10 149.61 257.48 307.54

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Un its Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 4.87E

- 06 1.52E

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

LADC pot 3.75E

- 04 1.17E

- 03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 1.28E

- 03 5.6 7E

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

SIC Code Comments:1/7/2015 Page of

STANDARD REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0061 Assessor: Wong/BC

ENVIRONMENTAL RELEASES

Scenario#: 2 Number of Release Sites:

Release Activity: USE: PDM 1

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:1/7/2015 Page of

STANDARD REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0061

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 2 Number o f Sites: RELEASE ACTIVITY: USE:

PDM1

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 13.48 33.92 55.60 67.10

ALL 10 42.10 149.61 257.48 307.54

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 4.87E

- 06 1.52E

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

LADC pot 3.75E

- 04 1.17E

- 03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 1.28E

- 03 5.67E

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

SIC Code Comments:1/7/2015 Page of

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P- 15

- 0061

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 2 RELEASE ACTIVITY: USE: PDM1

SIC CODE DESCRIPTIO N:

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

200.00 High1/7/2015 Page of

STANDARD REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0061 Assessor: Wong/BC

ENVIRONMENTAL RELEASES

Scenario#: 3 Number of Release Sites:

Release Activity: USE: PDM2

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:1/7/2015 Page of

STANDARD REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0061

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

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

PDM2

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 5.22 13.13 21.52 25.97

ALL 10 16.30 57.92 99.67 119.05

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 1.97E

- 05 6.14E

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

LADC pot 1.51E

- 03 4.72E

- 03 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 4.97E

- 04 2.19E

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

SIC Code Comments:1/7/2015 Page of

STANDARD REVIEW EXPOSURE REPORT

Chemical ID: P- 15

- 0061

SIC CODE EXPOSURE S TO SURFACE WATER RELEASES

SCENARIO # : 3 RELEASE ACTIVITY: USE: PDM2

SIC CODE DESCRIPTION:

ASSOCIATED SIC CODES:

SIC CODE RESULTS

COC (μg/L) Percent of

Year COC

Exceeded Number of

Days COC

Exceeded Release

days/year L oading

(kg/site/day) Waste Water

Treatment (%) High/Avg

Analysis

200.00 High1/7/2015 Page of

STANDARD REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0061 Assessor: Wong/BC

ENVIRONMENTAL RELEASES

Scenario#: 4 Number of Release 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:1/7/2015 Page of

STANDARD REVIEW EXPOSURE REPORT

Chemical ID : P- 15

- 0061

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURE S TO SURFACE WATER RELEASES

SCENARIO #: 4 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 Ha rmonic

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 Ingestio n Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 2.26E

- 05 7.07E

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

LADC pot 1.74E

- 03 5.44E

- 03 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:1/7/2015 Page of

STANDARD REVI EW EXPOSURE REPORT

Chemical ID: P

- 15

- 0061

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 4 ACTIVITY: USE: Max LADD

RELEASE DESCRIPTION:

EXPOSED POPULATION: Adult

NUMBER

OF

SITES NON

- SLUDGE

LANDFILL

RELEASE AND

DAYS OF

RELEA SE

(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 L andfilled 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

(yea rs) AT

(years) BW

(kg) IR

(L/day)

Cancer

LADD pot (mg/kg/day) 1.49E

- 05 33.00 78.00 80.00 1.04

LADC pot (mg/L) 1.15E

- 03 33.00 78.00 NA NA

REMARKS: