11/28/08 Page 1 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754 Reviewer: Sherer

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

Exposure
Scenario 1 Water Landfill Stack Air Fugitive Air

Drinking Water Fish Ingestion

ADR LADD ADR LADD 7Q10

CC=3 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 μ g/l # Days mg/kg/day mg/kg/day mg/kg/day mg/kg/day mg/kg/day

MFG/PROC1:

MFG/PROC1:

MFG/PROC2:

MFG/PROC2:

MFG/PROC3:

MFG/PROC3:

MFG/PROC4:

MFG/PROC4:

1 Exposure scenario titles consist of release activ ity followed by exposure calculation abbreviation.

2 Release activities are from engineering report's Manufactur ing (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. * Mixing Zone Concentration

Remarks:

Fate test recommendations?: (default is NA)11/28/08 Page 2 of 25

P OST FOCUS EXPOSURE REPORT

Summary Table: Endpoints assessed

Endpoints-Assessed Table Reasons for not assessing releases

Endpoints/Assessment Cycles 1 Releases

Assessed

in

NCEM2? No XB Testing Required No

Hazard

Concern No

Releases Release

Below

Acute

Threshold 5 Release

Below

Chronic

Threshold 5 Other

Ingestion

Surface water Ground water (landfill)

Consumer Use: DtD 2

Inhalation Air: incineration (stack) Air: fugitive

Consumer Use: CEM 3

Dermal

Consumer Use: CEM

Eco

Surface water: ADR

conc and/or PDM 4

Consumer Use: DtD

1 Assessment cycles are endpoint concentrations and dose calculations within the NCEM2 model.

2 Down-the-Drain Module

3 Consumer Exposure Module

4 Probabilistic Dilution Model

5 The threshold values for assessing endpoints are 1 mg/day for acute doses and 1 mg/year for chronic doses.

Remarks:11/28/08 Page 3 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754 Assessor: Delpire

ENVIRONMENTAL RELEASES

Scenario#:1 Number of Release Sites:

Release Activity: MFG/PROC site1:

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:11/28/08 Page 4 of 25

P OST FOCUS EXPOSURE REPORT

CHEMICAL ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES: LAKES, BAYS, ESTUARIES, AND OCEANS

SCENARIO #: 1 RELEASE ACTIVITY: MFG/PROC site1:

WWT

REMOVAL (%) RELEASE

DAYS PLANT FLOW (MLD) PRETREAT

RELEASE (kg/site/day) POST-TREAT

RELEASE (kg/site/day) BCF (L/kg)

AQUATIC EXPOSURE ESTIMATES

MIXING ZONE DILUTION FACTOR WATER CONCENTRATION (ug/L)

ACUTE SCENARIO

CHRONIC SCENARIO

FISH INGESTION EXPOSURE ESTIMATES

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (g/day)

Cancer

LADD pot (mg/kg/day)

LADC pot (mg/kg)

Acute

ADR pot (mg/kg/day)

Lakes Comments:11/28/08 Page 5 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754 Assessor:

ENVIRONMENTAL RELEASES

Scenario#:2 Number of Release Sites:

Release Activity: PMFG/PROC site1:

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:11/28/08 Page 6 of 25

P OST FOCUS EXPOSURE REPORT

CHEMICAL ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES: LAKES, BAYS, ESTUARIES, AND OCEANS

SCENARIO #: 2 RELEASE ACTIVITY: PMFG/PROC site1:

WWT

REMOVAL (%) RELEASE

DAYS PLANT FLOW (MLD) PRETREAT

RELEASE (kg/site/day) POST-TREAT

RELEASE (kg/site/day) BCF (L/kg)

AQUATIC EXPOSURE ESTIMATES

MIXING ZONE DILUTION FACTOR WATER CONCENTRATION (ug/L)

ACUTE SCENARIO

CHRONIC SCENARIO

FISH INGESTION EXPOSURE ESTIMATES

ASSUMPTIONS Exposure Units Results ED (years) AT (years) BW (kg) IR (g/day)

Cancer

LADD pot (mg/kg/day)

LADC pot (mg/kg)

Acute

ADR pot (mg/kg/day)

Lakes Comments:11/28/08 Page 7 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754 Assessor:

ENVIRONMENTAL RELEASES

Scenario#:3 Number of Release Sites:.

Release Activity: MFG/PROC site2:

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:11/28/08 Page 8 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:3 RELEASE AC TIVITY: MFG/PROC site2:

WWT

REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT

RELEASE (kg/site/day) DWT

(%) BCF (L/kg)

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD)

CONCENTRATION ( μ g/L)

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 mg/kg/day mg/kg/day

LADC pot mg/L mg/kg

Acute

ADR pot mg/kg/day mg/kg/day

Surface Water Comments:11/28/08 Page 9 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 3 RELEASE ACTIVITY: MFG/PROC site2:

RESULTS

COC ( μ g/L) Percent of Year

COC Exceeded Number of Days

COC Exceeded Release days/year Pre-treatment Loading (kg/site/day) Waste Water Treatment (%)

3.0011/28/08 Page 10 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754 Assessor:

ENVIRONMENTAL RELEASES

Scenario#:4 Number of Release Sites:

Release Activity: MFG/PROC site2:

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:11/28/08 Page 11 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:4 RELEASE AC TIVITY: MFG/PROC site2:

WWT

REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT

RELEASE (kg/site/day) DWT

(%) BCF (L/kg)

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD)

CONCENTRATION ( μ g/L)

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 mg/kg/day mg/kg/day

LADC pot mg/L mg/kg

Acute

ADR pot

Surface Water Comments:11/28/08 Page 12 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 4 RELEASE ACTIVITY: MFG/PROC site2:

RESULTS

COC ( μ g/L) Percent of Year

COC Exceeded Number of Days

COC Exceeded Release days/year Pre-treatment Loading (kg/site/day) Waste Water Treatment (%)

3.0011/28/08 Page 13 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754 Assessor:

ENVIRONMENTAL RELEASES

Scenario#:5 Number of Release Sites:

Release Activity: MFG/PROC site3:

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:11/28/08 Page 14 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:5 RELEASE AC TIVITY: MFG/PROC site3:

WWT

REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT

RELEASE (kg/site/day) DWT

(%) BCF (L/kg)

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD)

CONCENTRATION ( μ g/L)

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 mg/kg/day mg/kg/day

LADC pot mg/L mg/kg

Acute

ADR pot mg/kg/day mg/kg/day

Surface Water Comments:11/28/08 Page 15 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 5 RELEASE ACTIVITY: MFG/PROC site3:

RESULTS

COC ( μ g/L) Percent of Year

COC Exceeded Number of Days

COC Exceeded Release days/year Pre-treatment Loading (kg/site/day) Waste Water Treatment (%)

3.0011/28/08 Page 16 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754 Assessor:

ENVIRONMENTAL RELEASES

Scenario#:6 Number of Release Sites

Release Activity: MFG/PROC site3:

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:11/28/08 Page 17 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:6 RELEASE AC TIVITY: MFG/PROC site3:

WWT

REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT

RELEASE (kg/site/day) DWT

(%) BCF (L/kg)

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD)

CONCENTRATION ( μ g/L)

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 mg/kg/day mg/kg/day

LADC pot mg/L mg/kg

Acute

ADR pot

Surface Water Comments:11/28/08 Page 18 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 6 RELEASE ACTIVITY: MFG/PROC site3:

RESULTS

COC ( μ g/L) Percent of Year

COC Exceeded Number of Days

COC Exceeded Release days/year Pre-treatment Loading (kg/site/day) Waste Water Treatment (%)

3.0011/28/08 Page 19 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754 Assessor:

ENVIRONMENTAL RELEASES

Scenario#:7 Number of Release Sites

Release Activity: MFG/PROC site4:

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:11/28/08 Page 20 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:7 RELEASE AC TIVITY: MFG/PROC site4:

WWT

REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT

RELEASE (kg/site/day) DWT

(%) BCF (L/kg)

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD)

CONCENTRATION ( μ g/L)

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 mg/kg/day mg/kg/day

LADC pot mg/L mg/kg

Acute

ADR pot mg/kg/day mg/kg/day

Surface Water Comments:11/28/08 Page 21 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 7 RELEASE ACTIVITY: MFG/PROC site4:

RESULTS

COC ( μ g/L) Percent of Year

COC Exceeded Number of Days

COC Exceeded Release days/year Pre-treatment Loading (kg/site/day) Waste Water Treatment (%)

3.0011/28/08 Page 22 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754 Assessor:

ENVIRONMENTAL RELEASES

Scenario#:8 Number of Release Sites:

Release Activity: MFG/PROC site4:

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:11/28/08 Page 23 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER:8 RELEASE AC TIVITY: MFG/PROC site4:

WWT

REMOVAL (%) RELEASE

DAYS PRETREATMENT

RELEASE (kg/site/day) POSTTREATMENT

RELEASE (kg/site/day) DWT

(%) BCF (L/kg)

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD)

CONCENTRATION ( μ g/L)

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 mg/kg/day mg/kg/day

LADC pot mg/L mg/kg

Acute

ADR pot

Surface Water Comments:11/28/08 Page 24 of 25

P OST FOCUS EXPOSURE REPORT

Chemical ID: P080754

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO NUMBER: 8 RELEASE ACTIVITY: MFG/PROC site4:

RESULTS

COC ( μ g/L) Percent of Year

COC Exceeded Number of Days

COC Exceeded Release days/year Pre-treatment Loading (kg/site/day) Waste Water Treatment (%)

3.0011/28/08 Page 25 of 25



## LEGEND FOR NEW CHEMICAL S EXPOSURE REPORT

This new chemicals exposure report wa s prepared by the Exposure Assessment Branch (EAB) of the Economics, Exposure and Technology Division, Office of Pollution Prevention and Toxics, USEPA.

The goals of these reports are to calcula te conservative (protective) estimates of exposure endpoints for consumers, the general population, and the environment.

For each exposure scenario to industrial releases, the following three endpoints are calculated: (1) maximum possible acute concentrations and doses (2) maximum possible chronic concentrations and doses (3) for water releases ≥ 20 days, the probability of exceedence of the aquatic concentration of concern These endpoints are identified by abbreviati ons on the Release Activity line, e.g., (1) max ADR , (2) max LADD , (3) max PDM . Depending on the release inputs, these e ndpoints may be calculated and presented on the same page or different pages. That is, a release activity ID of mfg; max ADR, max PDM, max LADD indicates that all the exposure endpoints were cal culated from common manufacturing release values; conversely, a release activity ID of mfg &proc; max ADR indicates that only the maximum acute exposure values were calculated for manufacturing and proce ssing releases that occurred at the same site.

For each consumer product use exposure scenario, whether exposure is to the user directly or to the general population/environment, the maximum exposure values are calculated and presented together.

In addition to the exposure values above, EPA policy dir ects that exposure and release values be compared to criteria threshold values for Exposure-based and PBT Exposure-based cases.

Exposure-based (YX) cases (those with ≥ 100,000 kg/yr production volume)

Criteria are exceeded under the following conditions: Presence in consumer product with likely exposure

≥ 3E-3 mg/kg/d exposure via air, fish ingestion or drinking water

≥ 10,000 kg/yr release to environment (post-treatment)

≥ 1,000 kg/yr release to water (post-treatment)

Persistent, Bioaccumulative, Toxic (PBT) chemical s of P2B2 rating or hi gher and production volume ≥ 20,000 kg/yr Criteria are exceeded as for YX cases, with the following differences:

≥ 2,000 kg/yr release to environment (post-treatment)

≥ 200 kg/yr release to water (post-treatment)

Bolding rules in the Report: Values for endpoints above th at are also health or eco concerns are bolded.