4/15/2015 Page of



### POST FOCUS EXPOSURE REPORT

Chemical ID: P-15-0188 Reviewer: Tobias/BC

Results Table: Dose, Concentration, 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 =7 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 6.58E

- 04

--- --- --- 2.98E+01

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

USE: PDM1

--- --- --- --- 1.42E+00

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

USE: Max LADD

--- 2.64E

- 06

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

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 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:4/15/2015 Page of

POST FOCUS EXPOSURE REPORT

Chemical ID : P

- 15

- 0188 Assessor: Tobias/BC

ENVIRONMENTAL RELEASES

Scenario#: 1 Number of Release Sites:

Re lease 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:4/15/2015 Page of

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 15 -0188

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SC ENARIO #: 1 Number of Sites: RELEASE ACTIVITY: USE: 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/s ite/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 50 288.00 123.84 78.18 66.05 0.80 1.87 2.95 3.50

ALL 10 39.60 13.29 7.76 7.57 5.83 17.38 29.77 30.52

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 2.30E

- 07 1.67E

- 06 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 1.77E

- 05 1.28E

- 04 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 7.06E

- 05 6.58E

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

SIC Code Comments:4/15/2015 Page of

POST FOCUS EXPOSURE REPORT

Chemical ID : P

- 15

- 0188 Assessor: Tobias/BC

ENVIRONMENTAL RELEASES

Scenario#: 2 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:4/15/2015 Page of

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 15 -0188

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

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

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

RE LEASE

(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 50 288.00 123.84 78.18 66.05 3.82E

- 02 8.88E

- 02 0.14 0.17

ALL 10 39.60 13.29 7.76 7.57 0.28 0.83 1.42 1.45

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 1.44E

- 07 1.05E

- 06 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 1.11E

- 05 8.05E

- 05 mg/L 0.00 0.00 mg/kg

Acute

ADR pot 3.36E

- 06 3.13E

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

SIC Code Comments:4/15/2015 Page of

POST FOCUS EXPOSURE REPORT

Chemical ID: P- 15

- 0188

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 2 RELEASE ACTIVITY: USE: PDM1

SIC CODE 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

Treatment (%) High/Avg

An alysis

7.00 High4/15/2015 Page of

POST FOCUS EXPOSURE REPORT

Chemical ID : P

- 15

- 0188 Assessor: Tobias/BC

ENVIRONMENTAL RELEASES

Scenario#: 3 Number of Release Sites:

Release Activity: USE: Max LADD

Release Descr iption: 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:4/15/2015 Page of

POST FOCUS EXPOSURE REPORT

Chemical ID : P- 15 -0188

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 3 Number of Sites: RELEASE ACTIV ITY: USE: Max

LADD

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 0.00

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmo nic

Mean 30Q5 7Q10 1Q10

ALL 50 288.00 123.84 78.18 66.05 N/A N/A N/A N/A

ALL 10 39.60 13.29 7.76 7.57 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 3.63E

- 07 2.64E

- 06 mg/kg/day 0.00 0.00 mg/kg/day

LADC pot 2.79E

- 05 2.03E

- 04 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: