Support Documents for 

Significant New Use Rule (SNUR) on 

Premanufacture Notice (PMN) 

P-08-704 

EPA Docket EPA-HQ-OPPT-2010-1075 

 

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Index

A-001 Structure Activity Team (SAT) Report for 

PMN P-08-704 

A-002 Initial Review Engineering Report for 

PMN P-08-704 

A-003 Initial Review Exposure Report for 

PMN P-08-704 

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A-001 

Structure Activity Team (SAT) Report 

 for PMN P-08-704 

 

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SAT Report

PMN Number: P-08-0704

SAT Date: 9/19/2008

Related cases:

Health related cases: 

Ecotox related cases: 

Concern levels:

Type of Concern: Health Eco Comments

Level of Concern: 2-3 3

 Persistence Bioaccum Toxicity Comments

 1 1 2

Exposure Based Review:

Health: Yes

Ecotox: Yes

Routes of exposure: Health: Inhalation, dermal, and drinking water.

Ecotox: All releases to water

Fate: ;

Keywords:

 Keywords: MUTA, ONCO, DEVEL, REPRO< IRR, 

SENS-DERMAL/RESPIRATORY, AQUATOX-A,C

Summary of Assessment:

 Fate:

Fate Summary: P-08-0704

FATE: 

Liquid with MP < 25 EC (E)

log Kow = 2.83 (E); 

S = 483 mg/L at 25 EC (E)

VP = 2 torr at 25 EC (NOMO5)

BP = 171 EC (M)

H = 6.58E-4 (E)

log Koc = 1.72 (E)

log Fish BCF = 1.48 (E) 

POTW removal (%) = 0-25 via stripping and biodeg

Time for complete ultimate aerobic biodeg = wk-mo

Sorption to soils/sediments = moderate

EPA SANITIZED Page 4 of 33
Volatilization half-life from a standard river = 2 hrs

Volatilization half-life from a standard lake = 5 da

Atmospheric Oxidation Half-life = 17 hr via OH radical

PBT Potential: P1B1

*CEB FATE: Migration to ground water = moderate

 Health:

 Health Summary: Absorption is moderate with reaction of all 

routes based on analogs. There is concern for mutagenicity, oncogenicity, developmental 

toxicity, reproductive toxicity, irritation, and dermal and respiratory sensitization for 

 A mixture of is reported to be a dermal 

sensitizer in guinea pigs . A mixture of 

is reported to be a severe skin irritant and a mild eye irritant. Moderate 

high concern.

 Ecotox:

Test 

Organism

Test 

Type

Test End 

Point

Predicted Measured Comments

fish 96-h LC50 4.8

daphnid 48-h LC50 9.1

green algal 96-h EC50 8.3

fish _ chronic value 0.005

daphnid chronic value 0.85

algal _ chronic value 7.7

Sewage Sludge 3-h EC50 _

Sewage Sludge _ Chronic Value _

Ecotox Values Comments: Predictions are based on SARs for SAR 

chemical class = ; log Kow = 2.83 (EPI); pH7; effective 

concentrations based on 100% active ingredients and mean measured concentrations of 

; DW hardness < 150.0 mg/L as CaCO3; and DW TOC <2.0 mg/L;

Factors Values Comments

Assessment Factor 10

Concentration of Concern 

(ppb)

1

SARs

SAR Class

Ecotox Factors Comments: 

 SAT Chair: Becky Jones

EPA SANITIZED Page 5 of 33
A-002 

Initial Review Engineering Report 

 for PMN P-08-704 

 

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INITIAL REVIEW ENGINEERING REPORT

P-08-0704

Focus Ready Draft 9/25/2008

ENGINEER: Jon \ DGR

PV (kg/yr): 

Revision Notes/Assessment Overview:

SUBMITTER:

USE:

OTHER USES:

MSDS: LABEL: No

Gen Eqpt: 

Respirator:

Health Effects:

TLV/PEL: - 

CRSS:

Chemical Name: 

S-H2O:

VP: 

MW: %<500 %<1000

Physical State and Misc CRSS Info:

Neat: Mfg: 

 

Consumer Use: No

SAT (concerns):

Migration to groundwater: Moderate

PBT rating: P1 B1 T2

Health: 2-3, Dermal, Drinking Water, Inhalation,

Eco: 3, Water (All releases to water with a CC = 1 ppb), 

OCCUPATIONAL EXPOSURE RATING: 2-3B

NOTES & KEY ASSUMPTIONS:

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POLLUTION PREVENTION CONSIDERATIONS:

P2 Claim: 

P2 REC:

EXPOSURE-BASED REVIEW: 

 

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P-08-0704

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P-08-0704

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P-08-0704

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A-003 

Initial Review Exposure Report

for PMN P-08-704 

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9/24/2008 

INITIAL REVIEW EXPOSURE REPORT (IRExR) 

 Chemical ID: P080704 Reviewer: Flessner 

 

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

Exposure 

Scenario1 Water Landfill Stack Air Fugitive Air 

Drinking Water Fish Ingestion 

ADR LADD ADR LADD 

7Q10 

CC=1 

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 

1.45 --- 0.30 --- --- --- --- --- --- 2.94e-02 --- 

--- 3.80e-04 --- 4.88e-05 --- --- 7.89e-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. 

Remarks: 

Exposure Based Criteria 

Parameter 

Drinking (Surface) Water Dose (mg/kg/day)

Fish Ingestion Dose (mg/kg/day) 

Inhalation Dose (mg/kg/day) 

Groundwater Dose (mg/kg/day) 

Surface Water Release After Treatment (kg/yr) 

Total Release After Treatment (kg/yr) 

Fate test recommendations?: 

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9/24/2008 

INITIAL REVIEW EXPOSURE REPORT (IRExR) 

Summary Table: Endpoints assessed 

Endpoints-Assessed Table 

Reasons for not assessing releases 

Endpoints/Assessment 

Cycles1

Releases 

Assessed 

in 

NCEM2? 

No XB 

Testing 

Required 

No 

Hazard 

Concern 

No 

Releases 

Release 

Below 

Acute 

Threshold5

Release 

Below 

Chronic 

Threshold5

Other 

Ingestion 

 Surface water 

 Ground water (landfill) 

 Consumer Use: DtD2 

Inhalation 

 Air: incineration (stack) 

 Air: fugitive 

 Consumer Use: CEM3 

Dermal 

 Consumer Use: CEM 

Eco 

 Surface water: ADR 

conc and/or PDM4

 

 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: 

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9/24/2008 

INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: P080704 Assessor: Flessner 

ENVIRONMENTAL RELEASES 

 Scenario#: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: All releases are from PDM not run because release days 

are less than 20. 

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9/24/2008 

INITIAL EXPOSURE REVIEW REPORT 

 Chemical ID: P080704 

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES 

SCENARIO NUMBER:1 RELEASE ACTIVITY: 

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) 

 

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER 

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT 

FLOW (MLD) 

CONCENTRATION (μg/L) 5621.88 1.73E+04 2.92E+04 2.92E+04 NA 

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES 

Exposure Units 

Drinking Water 

Results 

Drinking Water 

Units 

Fish Ingestion 

Results 

Fish Ingestion 

Units 

Cancer 

LADDpot 1.20E-04 mg/kg/day 1.54E-05 mg/kg/day 

LADCpot 6.16E-03 mg/L 0.18 mg/kg 

Acute 

ADRpot 1.45 mg/kg/day 0.30 mg/kg/day 

Surface Water Comments: 

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9/24/2008 

INITIAL EXPOSURE REVIEW REPORT 

Chemical ID: P080704 

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT) 

SCENARIO #: 1 RELEASE ACTIVITY

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3 

EXPOSED POPULATION: Adult 

Number of Sites: 

Per Site Fugitive Release: kg/site/day 

Fugitive Release Days per Year: days 

% Removal via Fugitive Release: % 

Total Fugitive Release: kg/yr 

Max Annual Average Air Concentration 

(Fugitive): 

3.58E-02 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive): 

160.00 μg/m3

Per Site Stack Release: kg/site/day 

Stack Release Days per Year: days 

% Removal via Stack Release: % 

Total Stack Release: kg/yr 

Max Annual Average Air Concentration (Stack): 6.27E-04 μg/m3

Max 24 Hour Average Air Concentration (Stack): 1.15 μg/m3

ASSUMPTIONS 

Exposure Units 

Results 

(Stack) 

Results 

(Fugitive) ED 

(years) 

AT 

(years) 

BW 

(kg) 

Inh. Rate 

(m3/hr) 

Cancer 

LADDpot (mg/kg/day) N/A 2.63E-06 30.00 75.00 71.80 0.55 

LADCpot (mg/m3) N/A 1.43E-05 30.00 75.00 NA NA 

Acute 

ADRpot (mg/kg/day) N/A 2.94E-02 NA 1 day 71.80 0.55 

Inhalation Comments: 

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9/24/2008 

 Stack Parameter Data Fugitive Parameter Data 

Stack Height 10.00 m Release Height: 3.00 m 

Inside Stack 

Diameter: 

0.10 m Length of Release 

Opening: 

10.00 m 

Stack Gas Exit 

Velocity: 

0.10 m/sec Width of Release 

Opening: 

10.00 m 

Stack Gas 

Temperature: 

293.00 K 

 

 Meteorological and Terrain Information: 

Surrounding Land Use: Rural 

Terrain Height: 0.00 m 

Distance to Residence of Interest: 100.00 m 

Meteorological Class: Full 

Stability Class: NA 

Wind Speed: NA 

 

 Downwash Information: 

Facility Length: NA m 

Facility Width: NA m 

Facility Height: NA m 

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9/24/2008 

 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: P080704 Assessor: 

ENVIRONMENTAL RELEASES 

 Scenario#:2 Number of Release Sites: 

 Release Activity: 

 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: 

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9/24/2008 

INITIAL EXPOSURE REVIEW REPORT 

 Chemical ID: P080704 

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES 

SCENARIO NUMBER:2 RELEASE ACTIVITY: 

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) 

 

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER 

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT 

FLOW (MLD) 

CONCENTRATION (μg/L) 

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES 

Exposure Units 

Drinking Water 

Results 

Drinking Water 

Units 

Fish Ingestion 

Results 

Fish Ingestion 

Units 

Cancer 

LADDpot 3.80E-04 mg/kg/day 4.88E-05 mg/kg/day 

LADCpot 1.95E-02 mg/L 0.58 mg/kg 

Surface Water Comments: 

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9/24/2008 

INITIAL EXPOSURE REVIEW REPORT 

Chemical ID: P080704 

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES 

SCENARIO #: 2 ACTIVITY: 

RELEASE DESCRIPTION: 

EXPOSED POPULATION: Adult 

NUMBER 

OF 

SITES 

NON-SLUDGE 

LANDFILL 

RELEASE AND 

DAYS OF 

RELEASE 

(kg/site/day)/(days) 

 LANDFILLED 

SLUDGE1 

AND DAYS OF 

RELEASE 

(kg/site/day)/(days)

MIGRATION 

DESCRIPTOR2

ADSORPTION 

TO 

WASTEWATER 

SLUDGE 

 (%) 

DRINKING 

WATER 

TREATMENT 

 (%) 

 

 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 

 

ASSUMPTIONS 

 Exposure Units Results ED 

(years) 

AT 

(years) 

BW 

(kg) 

IR 

 (L/day) 

Cancer 

LADDpot (mg/kg/day) 7.89E-05 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 4.05E-03 30.00 75.00 NA NA 

REMARKS: 

 

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9/24/2008 

LEGEND FOR NEW CHEMICALS EXPOSURE REPORT 

This new chemicals exposure report was 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 calculate 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 abbreviations on the Release Activity line, e.g., (1) max ADR, (2) max 

LADD, (3) max PDM. Depending on the release inputs, these endpoints 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 calculated 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 processing 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 directs 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) chemicals of P2B2 rating or higher 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 that are also health or eco concerns are bolded. 

EPA SANITIZED Page 26 of 35 EPA SANITIZED Page 25 of 33
2/19/2009 

 

POST-FOCUS EXPOSURE REPORT 

 Chemical ID: P080704 Reviewer: Delpire 

Updated based on revised engineering report, 

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

Exposure 

Scenario1 Water Landfill Stack Air Fugitive Air 

Drinking Water Fish Ingestion 

ADR LADD ADR LADD 

7Q10 

CC=1 

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 

3.91E-03 

--- 8.19E-04 --- 

78.86 --- --- --- --- 2.94E-02 --- 

--- 1.62E-06 --- 2.09E-07 --- --- --- --- --- --- --- 

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. 

Remarks: 

Fate testing recommendations?: (default is NA) 

Exposure Based Criteria 

Parameter 

Drinking (Surface) Water Dose (mg/kg/day) 

Fish Ingestion Dose (mg/kg/day) 

Inhalation Dose (mg/kg/day) 

Groundwater Dose (mg/kg/day) 

Surface Water Release After Treatment (kg/yr) 

Total Release After Treatment (kg/yr) 

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2/19/2009 

 

POST-FOCUS EXPOSURE REPORT 

Chemical ID: P080704 Assessor: Delpire 

ENVIRONMENTAL RELEASES 

 Scenario#:1 Number of Release Sites: 

 Release Activity: 

 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: All releases are from PDM not run because release days 

are less than 20. 

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2/19/2009 

 

POST-FOCUS EXPOSURE REPORT 

 Chemical ID: P080704 

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES 

SCENARIO NUMBER:1 RELEASE ACTIVITY: 

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) 

 

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER 

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT 

FLOW (MLD) 

CONCENTRATION (μg/L) 15.19 46.80 78.86 78.86 NA 

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES 

Exposure Units 

Drinking Water 

Results 

Drinking Water 

Units 

Fish Ingestion 

Results 

Fish Ingestion 

Units 

Cancer 

LADDpot 1.62E-06 mg/kg/day 2.09E-07 mg/kg/day 

LADCpot 8.33E-05 mg/L 2.50E-03 mg/kg 

Acute 

ADRpot 3.91E-03 mg/kg/day 8.19E-04 mg/kg/day 

Surface Water Comments: 

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2/19/2009 

 

POST-FOCUS EXPOSURE REPORT 

Chemical ID: P080704 

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT) 

SCENARIO #: 1 RELEASE ACTIVITY

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3 

EXPOSED POPULATION: Adult 

Number of Sites: 

Per Site Fugitive Release: kg/site/day 

Fugitive Release Days per Year: days 

% Removal via Fugitive Release: % 

Total Fugitive Release: kg/yr 

Max Annual Average Air Concentration 

(Fugitive): 

3.58E-02 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive): 

160.00 μg/m3

Per Site Stack Release: 0.00 kg/site/day 

Stack Release Days per Year: 0.00 days 

% Removal via Stack Release: 99.90 % 

Total Stack Release: 0.00 kg/yr 

Max Annual Average Air Concentration (Stack): NA μg/m3

Max 24 Hour Average Air Concentration (Stack): NA μg/m3

ASSUMPTIONS 

Exposure Units 

Results 

(Stack) 

Results 

(Fugitive) ED 

(years) 

AT 

(years) 

BW 

(kg) 

Inh. Rate 

(m3/hr) 

Cancer 

LADDpot (mg/kg/day) N/A 2.63E-06 30.00 75.00 71.80 0.55 

LADCpot (mg/m3) N/A 1.43E-05 30.00 75.00 NA NA 

Acute 

ADRpot (mg/kg/day) N/A 2.94E-02 NA 1 day 71.80 0.55 

Inhalation Comments: 

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2/19/2009 

 

 Stack Parameter Data Fugitive Parameter Data 

Stack Height 10.00 m Release Height: 3.00 m 

Inside Stack 

Diameter: 

0.10 m Length of Release 

Opening: 

10.00 m 

Stack Gas Exit 

Velocity: 

0.10 m/sec Width of Release 

Opening: 

10.00 m 

Stack Gas 

Temperature: 

293.00 K 

 

 Meteorological and Terrain Information: 

Surrounding Land Use: Rural 

Terrain Height: 0.00 m 

Distance to Residence of Interest: 100.00 m 

Meteorological Class: Full 

Stability Class: NA 

Wind Speed: NA 

 

 Downwash Information: 

Facility Length: NA m 

Facility Width: NA m 

Facility Height: NA m 

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2/19/2009 

 

POST-FOCUS EXPOSURE REPORT 

Chemical ID: P080704 Assessor: 

ENVIRONMENTAL RELEASES 

 Scenario#:2 Number of Release Sites: 

 Release Activity: 

 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: All releases are from 

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POST-FOCUS EXPOSURE REPORT 

 Chemical ID: P080704 

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES 

SCENARIO NUMBER:2 RELEASE ACTIVITY: 

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) 

 

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER 

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT 

FLOW (MLD) 

CONCENTRATION (μg/L) 

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES 

Exposure Units 

Drinking Water 

Results 

Drinking Water 

Units 

Fish Ingestion 

Results 

Fish Ingestion 

Units 

Cancer 

LADDpot 1.62E-06 mg/kg/day 2.09E-07 mg/kg/day 

LADCpot 8.33E-05 mg/L 2.50E-03 mg/kg 

Surface Water Comments: 

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2/19/2009 

 

LEGEND FOR NEW CHEMICALS EXPOSURE REPORT 

This new chemicals exposure report was 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 calculate 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 exceedance of the aquatic concentration of concern 

These endpoints are identified by abbreviations on the Release Activity line, e.g., (1) max ADR, (2) max 

LADD, (3) max PDM. Depending on the release inputs, these endpoints 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 calculated 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 processing 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 directs 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) chemicals of P2B2 rating or higher 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 that are also health or eco concerns are bolded. 

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