7/3/2013 Page 1 of 14



### INITIAL REVIEW EXPOSURE REPORT (IRExR)

Chemical ID: P -13- 0568 R eviewer: Flessner/SD

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

Exposure

Scenario 1 Water L andfill Stack Air Fugitive Air

Drinking Water Fish Ingestion

ADR LADD ADR LADD 7Q10 4

CC = 4 PDM

Days

Exceeded 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

max

acute eco 1.29E

- 03

--- 1.06E

- 03

--- 2.18E+01

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

Max

LADD --- 1.78E

- 07

--- 5.39E

- 08

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

max

acut e eco 3.90E

- 03

--- 1.99E

- 03

--- 7.99E+01

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

PDM1 --- --- --- --- 7.99E+01

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

Max LADD --- 1.84E

- 05

--- 5.58E

- 06

--- --- 7.10E

- 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), 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 concen tration 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.7/3/2013 Page 2 of 14



### Results Table: Exposure Based (XB)/Persistent (P2B 2) Criteria

Parameter Exp Based 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 Tre atment (kg/yr) NA

Total Release After Treatment (kg/yr) NA

Consumer Use? No



### Fate test recommendations?: (default is NA)7/3/2013 Page 3 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0568 Assessor: Flessner/SD

ENVIRONMENTAL RELEASES

Scenari o#: 1 Number of Release Sites:

Release Activity: 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:7/3/2013 Page 4 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0568

SI TE

- SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 1 RELEASE ACTIVITY: Max ADR

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 7 0.80

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD)

CONCENTRATION (μg/L) 8.32 15.45 21.78 27.12 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 1.78E

- 07 mg/kg/day 5 .39E

- 08 mg/kg/day

LADC pot 9.12E

- 06 mg/L 6.46E

- 04 mg/kg

Acute

ADR pot 1.29E

- 03 mg/kg/day 1.06E

- 03 mg/kg/day

Surface Water Comments:7/3/2013 Page 5 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0568 Assessor: Flessner/SD

ENVIRONMENTAL RELEASES

Sc enario#: 2 Number of Release Sites:

Release Activity: 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:7/3/2013 Page 6 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0568

SI TE

- SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 2 RELEASE ACTIVITY: Max LADD

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 7 0.80

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD)

CONCENTRATION (μg/L) N/A N/A N/A N/A 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 1.78E

- 07 mg/kg/day 5.39E

- 08 mg/kg/day

LADC pot 9.12E

- 06 mg/L 6.46E

- 04 mg/kg

Acute

ADR pot N/A mg/kg/day N/A mg/kg/day

Surface Water Comments:7/3/2013 Page 7 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0568 Assessor: Flessner/SD

ENVIRONMENTAL RELEASES

Scenario#: 3 Number of Release Sites:

Release Activity: 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:7/3/2013 Page 8 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0568

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 3 Number of Sites: RELEASE ACTIVITY:

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

RELEASE

(kg/site/day) DWT

(%) BCF

(L/kg)

0.00 70.80

AQUATIC EXPOSURE ESTIMATES

- SURFACE WATER

PLANT

TYPE % ILE

FACILITY STREAM FLO W (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 EXPOSURE ESTIMATES

Exp osure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 2.53E

- 06 1.84E

- 05 mg/kg/day 7.68E

- 07 5.58E

- 06 mg/kg/day

LADC pot 1.30E

- 04 9.44E

- 04 mg/L 9.19E

- 03 6.68E

- 02 mg/kg

Acu te

ADR pot 4.18E

- 04 3.90E

- 03 mg/kg/day 2.74E

- 04 1.99E

- 03 mg/kg/day

SIC Code Comments:7/3/2013 Page 9 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0568 Assessor: Flessner/SD

ENVIRONMENTAL RELEASES

Scenario#: 4 Number of Release Sites:

Release Activity: 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:7/3/2013 Page 10 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0568

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 4 Number of Sites: RELEASE ACTIVITY:

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 PRETR EATMENT

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 EXPOSURE ESTIMATES

Exp osure Units Drinking Water Results Drinking

Water Units Fish Ingestion Results Fish

Ingestion

Units

50% 10% 50% 10%

Cancer

LADD pot 2.53E

- 06 1.84E

- 05 mg/kg/day 7.68E

- 07 5.58E

- 06 mg/kg/day

LADC pot 1.30E

- 04 9.44E

- 04 mg/L 9.19E

- 03 6.68E

- 02 mg/kg

Acu te

ADR pot 4.18E

- 04 3.90E

- 03 mg/kg/day 2.74E

- 04 1.99E

- 03 mg/kg/day

SIC Code Comments:7/3/2013 Page 11 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P- 13

- 0568

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO # : 4 RELEASE ACTIVITY: PDM 1

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 Wa ter

Treatment (%) High/Avg

Analysis

High7/3/2013 Page 12 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0568 Assessor: Flessner/SD

ENVIRONMENTAL RELEASES

Scenario#: 5 Number of Release Sites:

Release Activity: 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:7/3/2013 Page 13 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID : P- 13

- 0568

SIC

- CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 5 Number of Sites: RELEASE ACTIVITY:

Max LADD

SIC

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

SIC

- CODE (S): Subset of 4952 EXPOSED POPULATION: Adult

W WT

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 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 2.53E

- 06 1.84E

- 05 mg/kg/day 7.68E

- 07 5.58E

- 06 mg/kg/day

LADC pot 1.30E

- 04 9.44E

- 04 mg/L 9.19E

- 03 6.68E

- 02 mg/kg

Acute

ADR pot N/A N/A mg/kg/day N/A N/A mg/kg/day

SIC Code Comments:7/3/2013 Page 14 of 14

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P

- 13

- 0568

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 5 ACTIVITY: Max LADD

RELEASE DESCRIPTION:

EXPOSED POPULAT ION: Adult

NUMBER

OF

SITES NON

- SLUDGE

LANDFILL

RELEASE AND

DAYS OF

RELEASE

(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 Landfilled 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

(years) AT

(years) BW

(kg) IR

(L/day)

Cancer

LADD pot (mg/kg/day) 7.10E

- 05 30.00 75.00 71.80 1.40

LADC pot (mg/L) 3.64E

- 03 30.00 75.00 NA NA

REMARKS: