3/28/14 page of



### INITIAL REVIEW EXPOSURE REPORT (IRExR)

Chemical ID: P -14-0382 Reviewer: Wong/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 = 1 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

MFG: max acute eco

--- --- --- --- 1.29E

- 02

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

MFG: PDM1

--- --- --- --- 1.29E

- 02

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

USE: max acute eco

--- --- --- --- 1.03E+02

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

USE: PDM1

--- --- --- --- 7.99E+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.Mult iple 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 lo west flow within a ten year period.

Remarks:3/28/14 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 14

- 0382 Assessor: Wong/SS

ENVIRONMENTAL RELEASES

Scenario#: 1 Number of Release Sites:

Release Activity: MFG: Max ADR

Releas e 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:3/28/14 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 14

- 0382

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 1 Number of Sites : RELEASE ACTIVITY: MFG:

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/site/day) POSTTREATMENT

RELE ASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 70.80

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

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

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic

Mean 30Q 5 7Q10 1Q10

ALL 50 288.00 123.84 78.18 66.05 3.47E

- 04 8.07E

- 04 1.28E

- 03 1.51E

- 03

ALL 10 39.60 13.29 7.76 7.57 2.53E

- 03 7.52E

- 03 1.29E

- 02 1.32E

- 02

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking

W ater Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 1.78E

- 10 1.30E

- 09 mg/kg/day 5.40E

- 11 3.93E

- 10 mg/kg/day

LADC pot 9.13E

- 09 6.64E

- 08 mg/L 6.47E

- 07 4.70E

- 06 mg/kg

Acute

ADR pot 6.75E

- 08 6.29E

- 07 mg/kg/day 4.42E

- 08 3.21E

- 07 mg/kg/day

SIC Code Comments:3/28/14 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 14

- 0382 Assessor: Wong/SS

ENVIRONMENTAL RELEASES

Scenario#: 2 Number of Release Sites:

Release Activity: MFG: PDM1

Release De scription: 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:3/28/14 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 14

- 0382

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

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

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

RELEASE

(kg /site/day) DWT

(%) BCF

(L/kg)

0.00 70.80

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 3.47E

- 04 8.07E

- 04 1.28E

- 03 1.51E

- 03

ALL 10 39.60 13.29 7.76 7.57 2.53E

- 03 7.52E

- 03 1.29E

- 02 1.32E

- 02

DRINKING WATER AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking

Water Un its Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 1.78E

- 10 1.30E

- 09 mg/kg/day 5.40E

- 11 3.93E

- 10 mg/kg/day

LADC pot 9.13E

- 09 6.64E

- 08 mg/L 6.47E

- 07 4.70E

- 06 mg/kg

Acute

ADR pot 6.75E

- 08 6.29E

- 07 mg/kg/day 4.42E

- 08 3.2 1E

- 07 mg/kg/day

SIC Code Comments:3/28/14 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P- 14

- 0382

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 2 RELEASE ACTIVITY: MFG: PDM1

SIC CODE DESCRIPTION: POTW (Indust., includes POTWs wh ich 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

Analysis

High3/28/14 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 14

- 0382 Assessor: Wong/SS

ENVIRONMENTAL RELEASES

Scenario#: 3 Number of Release Sites:

Release Activity: USE: Max ADR

Release Description: WATER LANDFILL

Non

- sludge/Sludge STACK FUGITIVE

Total Releases:

(kg/yr) (kg/y r) (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:3/28/14 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 14

- 0382

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

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

ADR

SIC

- CODE DESCRIPTION: POTW (Indust., includes POTWs which receive ind. disch.)

SIC

- COD E (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 70.80

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 50 288.00 123.84 78.18 66.05 2.78 6.46 10.23 12.11

ALL 10 39.60 13.29 7.76 7.57 20.20 60.20 103.09 105.68

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 5.94E

- 08 4.32E

- 07 mg/kg/day 1.80E

- 08 1.31E

- 07 mg/kg/day

LADC pot 3.04E

- 06 2.21E

- 05 mg/L 2.16E

- 04 1.57E

- 03 mg/kg

Acute

ADR pot 5.40E

- 04 5.03E

- 03 mg/kg/day 3.53E

- 04 2.57E

- 03 mg/kg/day

SIC Code Comments:3/28/14 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 14

- 0382 Assessor: Wong/SS

ENVIRONMENTAL RELE ASES

Scenario#: 4 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:3/28/14 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 14

- 0382

SI C- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 4 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 POPULATIO N: Adult

WWT

REMOVAL

(%) RELEASE

DAYS PRETREATMENT

RELEASE

(kg/site/day) POSTTREATMENT

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 70.80

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 2.15 5.01 7.93 9.39

ALL 10 39.60 13.29 7.76 7.57 15.66 46.65 79.90 81.90

DRINKING WATER AND FISH INGESTION EXPOSU RE ESTIMATES

Exposure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 9.94E

- 06 7.23E

- 05 mg/kg/day 3.01E

- 06 2.19E

- 05 mg/kg/day

LADC pot 5.10E

- 04 3.71E

- 03 mg/L 3.61E

- 02 0 .26 mg/kg

Acute

ADR pot 4.18E

- 04 3.90E

- 03 mg/kg/day 2.74E

- 04 1.99E

- 03 mg/kg/day

SIC Code Comments:3/28/14 page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P- 14

- 0382

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 4 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

Analysis

High