# Support Documents for Significant New Use Rule (SNUR) on Premanufacture Notice (PMN) P-09-400

EPA Docket EPA-HQ-OPPT-2010-1075

# Index A-001 Structure Activity Team (SAT) Report for PMN P-09-400 A-002 Initial Review Engineering Report for PMN P-09-400 A-003 Ini tial Review Exposure Report for PMN P-09-400

# A-001 Structure Activity Team (SAT) Report for PMN P-09-400

## SAT Report PMN Number: P-09-0400 SAT Date: 6/12/2009

Related cases : Health related cases:
Ecotox related cases:

Concern levels : 

### Type of Concern: Health Eco Comments Level of Concern: 2 2

Persistence Bioaccum Toxicity Comments 1 1 2 Exposure Based Review : Health: Yes Ecotox: Yes Routes of exposure : Health: Dermal, inhalation, drinking water Ecotox: All releases to water Fate: ;

P 2 Rec Comments : Comment: SAT had no comment Keywords : Keywords: SENS-S; IRR-S; MUTA; HYPERSENS; N EUROTO X ; BLOOD; LIVER; KIDNEY; SPLEEN; BRAIN; TESTES; DEVEL; REPRO; AQUATOX Summary of Assessment :
Fate : Fate Summary: P-09-0400 FATE: Liquid with MP = -35 EC (M) log Kow = 2.18 (E); S = 2.01 g/L at 25 EC (E) VP = 0.04 torr at 25 EC (M) BP = 207 EC (M)

### H = 4.66E-5 (E) log Koc = 2.09 (E) log Fish BCF = 1.11 (E) POTW removal (%) = 90 via biodeg; OECD 111 (hydrolysis): DT50 ( p H2,7): 2001h/5.8h; OECD 310 (CO2 headspace): 94%/28d. Time for complete ultimate aerobic biodeg = da-wk Sorption to soils/sediments = low Volatilization half-life from a standard river = 17 hrs Volatilization half-life from a standard lake = 12 da Atmospheric Oxidation Half-life = 4.6 hr via OH radical Atmospheric Oxidation Half-life = 160 hr via ozone PBT Potential: P1B1 *CEB FATE: Migration to ground water = negl due to biodeg

Health : Health Summary: Absorbed all routes (analog); expect enzymatic hydrolysis to release and in the body. Concern for dermal sensitization based on submitted test data. Concern for dermal irritation; neurotoxicity; blood, liver, kidney, spleen, brain, testes, developmental, and reproductive toxicity based on test data for analogues (see below). Concern for mutagenicity based on the released and hypersensitivity and developmental toxicity based on the released Test Data: (-) Salmonella with and without activation; (-) E. coli with and without activation; mild skin irritation in rabbits; mild eye irritation in rabbits; (+) for skin sensitization in a mouse local lymph node assay at 25, 50, and 100% ai
moderate skin irritation in rabbits : rat 14-day oral NOEL = 200 mg/kg, neurotoxicity, blood, liver, kidney, spleen, and brain toxicity at 1000 mg/kg; mouse 14-day oral NOEL = 1000 mg/kg, liver and testes toxicity at 2000 mg/kg : neurotoxicity in rats

: rat inhalation LOEC = 100 p p m , neurofunctional and neurostructural changes at 1000 mg/kg, blood toxicity at all doses : rat 14-day oral study, neurostructural changes after 2 doses at 2000 mg/kg : rat oral developmental NOEL = 500 mg/kg Vinyl 2-ethylhexanoate: rat acute oral neurotoxicity LOEL = 1 mL/kg (1000 mg/kg); rat oral developmental toxicity LOEL = 1mL/kg; signs of neurotoxicity : rat acute oral neurotoxicity LOEL = 1 mL/kg (1000 mg/kg); rat 14-day oral LOEL = 1mL/kg, neurotoxic signs; rabbit oral developmental toxicity NOEL = 350 mg/kg; rat oral developmental toxicity NOEL = 350 mg/kg

### : rabbit oral developmental toxicity NOEL = 350 mg/kg; rat 14-day inhalation NOEC = 0.25mg/L, kidney toxicity; rat drinking water reproductive toxicity NOEL = 200 p p m , testicular atrophy : rat 90-day oral NOEL = 100 mg/kg, kidney and thyroid toxicity
Ecotox :
Test Organism Test Type Test End Point Predicted Measured Comments

fish 96-h LC50 1.0 1.7 daphnid 48-h LC50 8.3 10 green algal 96-h EC50 2.2 0.55 fish

_ chronic value 0.027 daphnid

_ chronic value 0.33 algal chronic value 0.44 Sewage Sludge 3-h EC50

_ Sewage Sludge

_ Chronic Value

_ Ecotox Values Comments: Predictions are based on SARs for ; SAR chemical class = ; MW 148; liquid with mp = -35 °C (M); log Kow = 2.18 (EPI); S = 2.0 g/L at 20 °C (P); p H7; effective concentrations based on 100% active ingredients and mean measured concentrations; hardness <150.0 mg/L as CaCO3; and TOC <2.0 mg/L; Three acute ecotoxicity studies (fish, daphnia, algae) were submitted with this PMN. Details of their evaluation are included in the attached spreadsheet. Conclusions are given below. Conclusion: The results from all three tests are considered valid. The most sensitive species considered for these analyses is Pseudokirchneriella subcapitata (yield and biomass) and therefore the CC is derived from the 72-hr test results. The EC50 for both yeild and biomass is 0.55 mg/L. Dividing this value by a factor of 4 to simulate a chronic value yields 0.138 mg/L. This simulated chronic value may be divided by an assessment (uncertainty) factor of 10, yielding a CC of 0.014 mg/L or 14 μ g/L ( p pb). The PMN substance P09-0400 is of moderate concern for ecotoxicity.
Factors Values Comments Assessment Factor 10 Concentration of Concern ( p pb) 14

SARs SAR Class
Ecotox Factors Comments:
SAT Chair: L Keifer 564-8916

# A-002 Initial Review Engineering Report for PMN P-09-400

### INITIAL REVIEW ENGINEERING REPORT P-09-0400 Focus Ready Draft 6/18/2009
ENGINEER: Macek \ CLM PV (kg/yr):
Revision Notes/Assessment Overview:
SUBMITTER:
USE:

OTHER USES:

SAT (concerns): (6/12 /2009):
Related Cases and Misc SAT Info: Ecotox Related Cases: Health Related Cases:Migration to groundwater: N egl. due to biodeg PBT rating: P 1 B 1 T 2 - Health: 2, Dermal, Drinking Water, Inhalation Eco: 3, Water (All releases to water with a CC = 3 ppb)
OCCUPATIONAL EXPOSURE RATING: 2-3A
NOTES & KEY ASSUMPTIONS: Generated by the 06/07/2005 version of ChemSTEER.

POLLUTION PREVENTION CONSIDERATIONS:

P2 REC:P-09-0400

# A-003 Initial Review Exposure Report for PMN P-09-4006/17/2009 Page of

INITIAL REVIEW EXPOSU RE REPORT (IRExR)

Chemical ID: P090400 Reviewer: Flessner 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 4 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 max ADR, max Acute Eco, PDM, max LADD 0.37 3.46E-04 1.86E-02 1.90E-05 7578.74 20 --- --- --- 7.54E-02 ---

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. 4 This column displays concentration values for the 7Q10 streamflow, which is defined as the average streamflow of the 7 consecutive days of lowest flow within a 10 year period.
Remarks:

Results Table: Exposure Based (XB)/Persistent (P2B2) Criteria

Parameter Drinking (Surface) Wate r 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) Consumer Use?

Fate test recommendations?:6/17/2009 Page of

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P090400 Assessor: Flessner
ENVIRONMENTAL RELEASES
Scenario#:1 Number of Release Sites: Release Activity: max ADR, max Acute Eco, PDM, 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:6/17/2009 Page of

INITIAL REVIEW EX POSURE REPORT
Chemical ID: P090400

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES
SCENARIO #: 1 Number of Sites: RELEASE ACTIVITY max ADR, max Acute Eco, PDM, max LADD
SIC-CODE DESCRIPTION SIC-CODE (S): 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
PLANT TYPE % ILE FACILITY STREAM FLOW (MLD) STREAM CONC. ( μ g/l)

Harmonic

Mean 30Q5 7Q10 1Q10 Harmonic Mean 30Q5 7Q10 1Q10
ALL 50 14.51 43.83 64.65 79.74
ALL 10 810.78 4371.11 7578.74 9050.99

DRINKING WATER AND FISH IN GESTION EXPOSURE ESTIMATES

Exposure Units Drinking Water Results Drinking Water Units Fish Ingestion Results Fish Ingestion

Units 50% 10% 50% 10%
Cancer
LADD pot 6.20E-06 3.46E-04 mg/kg/day 3.40E-07 1.90E-05 mg/kg/day
LADC pot 3.18E-04 1.78E-02 mg/L 4.07E-03 0.23 mg/kg
Acute
ADR pot 3.66E-03 0.37 mg/kg/day 3.34E-04 1.86E-02 mg/kg/day

SIC Code Comments:6/17/2009 Page of

INITIAL REVIEW EX POSURE REPORT
Chemical ID: P090400

SIC CODE EXPOSURES TO SURFACE WATER RELEASES
SCENARIO #: 1 RELEASE ACTIVITY: max ADR, max Acute Eco, PDM, max LADD
SIC CODE DESCRIPTION:
ASSOCIATED SIC CODES:
SIC CODE RESULTS

COC ( μ g/L) Percent of Year COC Exceeded Number of Days COC Exceeded Release days/year Loading (kg/site/day) Waste Water Treatment (%) High/Avg Analysis

3.00 5 20 High6/17/2009 Page of

INITIAL EXPOSURE REVIEW REPORT Chemical ID: P090400
INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)
SCENARIO #: 1 RELEASE ACTIVITY max ADR, max Acute Eco, PDM, max LADD
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: 0.00 % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 1.81 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 410.00 μg/m 3

Per Site Stack Release: NA kg/site/day Stack Release Days per Year: NA days
% Removal via Stack Release: %
Total Stack Release: NA kg/yr Max Annual Average Air Con centration (Stack): 0.00 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 0.00 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) N/A 1.33E-04 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) N/A 7.24E-04 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A 7.54E-02 NA 1 day 71.80 0.55

Inhalation Comments:6/17/2009 Page of

Stack Parameter Data Fugitive Parameter Data Stack Height 10.00 Release Height: 3.00 m
Inside Stack Diameter: 0.10 Length of Release Opening: 10.00 m

Stack Gas Exit Velocity: 0.10 Width of Release Opening: 10.00 m

Stack Gas Temperature: 293.00

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 m6/17/2009 Page of



## 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.March 4, 2010 Page 1 of 13

POSTFOCUS EXPOSURE REPORT
Chemical ID: P090400 Reviewer: Flessner 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 4 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 max ADR, max Acute Eco, PDM1 1.08e-03 --- 1.99e-04 --- 20.17 11 --- --- --- 7.54e-02 ---
PDM2 --- --- --- --- 8.87e-03 0 --- --- --- --- --- max LADD --- 4.26e-06 --- 2.34e-07 --- --- --- --- --- --- 3.04e-04
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. 4 This column displays concentration values for the 7Q10 streamflow, which is defined as the average streamflow of the 7 consecutive days of lowest flow within a 10 year period.
Remarks:March 4, 2010 Page 2 of 13

POSTFOCUS EXPOSURE REPORT

Chemical ID: P090400 Assessor: Flessner
ENVIRONMENTAL RELEASES
Scenario#:1 Number of Release Sites: Release Activity: max ADR, max Acute Eco, 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:March 4, 2010 Page 3 of 13

POSTFOCUS EXPOSURE REPORT
Chemical ID: P090400 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES
SCENARIO NUMBER:1 RELEASE ACTIVITY: max ADR, max Acute Eco, PDM1
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 ( μ g/L) 8.67 12.94 20.17 24.60 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 4.26E-06 mg/kg/day 2.34E-07 mg/kg/day
LADC pot 2.18E-04 mg/L 2.80E-03 mg/kg
Acute
ADR pot 1.08E-03 mg/kg/day 1.99E-04 mg/kg/day

Surface Water Comments:March 4, 2010 Page 4 of 13

POSTFOCUS EXPOSURE REPORT Chemical ID: P090400
SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES
SCENARIO NUMBER: 1 RELEASE ACTIVITY: max ADR, max Acute Eco, PDM1
FACILITY NAME:
FACILITY LOCATION
RECEIVING STREAM NAME:
REACH NUMBER: FACILITY ON REACH: DISCHARGE TYPE:
NPDES PERMIT NUMBER: GAGING STATION ID: GAGING STATION PERIOD OF RECORD: GAGING STATION NUMBER OF OBSERVATIONS: NUMBER OF STATIONS ON REACH:

50 %ile FLOW (MLD): 10 %ile FLOW (MLD): EFFLUENT FLOW (MLD)

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 (%)

3.00 3 11March 4, 2010 Page 5 of 13

POSTFOCUS EXPOSURE REPORT Chemical ID: P090400
INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)
SCENARIO #: 1 RELEASE ACTIVITY max ADR, max Acute Eco, PDM1
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: 0.00 % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 4.13 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): 410.00 μg/m 3

Per Site Stack Release: NA kg/site/day Stack Release Days per Year: NA days
% Removal via Stack Release: %
Total Stack Release: NA kg/yr Max Annual Average Air Con centration (Stack): 0.00 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 0.00 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) N/A 3.04E-04 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) N/A 1.65E-03 30.00 75.00 NA NA
Acute
ADR pot

(mg/kg/day) N/A 7.54E-02 NA 1 day 71.80 0.55

Inhalation Comments:March 4, 2010 Page 6 of 13

Stack Parameter Data Fugitive Parameter Data Stack Height 10.00 Release Height: 3.00 m
Inside Stack Diameter: 0.10 Length of Release Opening: 10.00 m

Stack Gas Exit Velocity: 0.10 Width of Release Opening: 10.00 m

Stack Gas Temperature: 293.00

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 mMarch 4, 2010 Page 7 of 13

POSTFOCUS EXPOSURE REPORT

Chemical ID: P090400 Assessor:
ENVIRONMENTAL RELEASES
Scenario#:2 Number of Release Sites: Release Activity: PDM2 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:March 4, 2010 Page 8 of 13

POSTFOCUS EXPOSURE REPORT
Chemical ID: P090400 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES
SCENARIO NUMBER:2 RELEASE ACTIVITY: PDM2
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 ( μ g/L) 3.81E-03 5.69E-03 8.87E-03 1.08E-02 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 3.75E-09 mg/kg/day 2.06E-10 mg/kg/day
LADC pot 1.92E-07 mg/L 2.46E-06 mg/kg
Acute
ADR pot 4.75E-07 mg/kg/day 8.76E-08 mg/kg/day

Surface Water Comments:March 4, 2010 Page 9 of 13

POSTFOCUS EXPOSURE REPORT Chemical ID: P090400
SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES
SCENARIO NUMBER: 2 RELEASE ACTIVITY: PDM2
FACILITY NAME:
FACILITY LOCATION:
RECEIVING STREAM NAME:
REACH NUMBER FACILITY ON REACH: DISCHARGE TYPE:
NPDES PERMIT NUMBER: GAGING STATION ID: GAGING STATION PERIOD OF RECORD: GAGING STATION NUMBER OF OBSERVATIONS: NUMBER OF STATIONS ON REACH:

50 %ile FLOW (MLD): 10 %ile FLOW (MLD): EFFLUENT FLOW (MLD)

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 (%)

3.00 0 0March 4, 2010 Page 10 of 13

POSTFOCUS EXPOSURE REPORT

Chemical ID: P090400 Assessor:
ENVIRONMENTAL RELEASES
Scenario#:3 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:March 4, 2010 Page 11 of 13

POSTFOCUS EXPOSURE REPORT
Chemical ID: P090400 SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES
SCENARIO NUMBER:3 RELEASE AC TIVITY: 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)

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER
FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT FLOW (MLD) CONCENTRATION ( μ g/L) 199.40 297.69 464.20 565.99 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 4.26E-06 mg/kg/day 2.34E-07 mg/kg/day
LADC pot 2.19E-04 mg/L 2.80E-03 mg/kg

Surface Water Comments:March 4, 2010 Page 12 of 13

POSTFOCUS EXPOSURE REPORT Chemical ID: P090400
INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)
SCENARIO #: 3 RELEASE ACTIVITY max LADD
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: 0.00 % Total Fugitive Release: kg/yr Max Annual Average Air Concentration (Fugitive): 4.13 μg/m 3

Max 24 Hour Average Air Concentration(Fugitive): μg/m 3

Per Site Stack Release: NA kg/site/day Stack Release Days per Year: NA days
% Removal via Stack Release: %
Total Stack Release: NA kg/yr Max Annual Average Air Con centration (Stack): 0.00 μg/m 3 Max 24 Hour Average Air Concentration (Stack): 0.00 μg/m 3

ASSUMPTIONS Exposure Units Results (Stack) Results (Fugitive) ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr)
Cancer
LADD pot (mg/kg/day) N/A 3.04E-04 30.00 75.00 71.80 0.55
LADC pot (mg/m 3 ) N/A 1.65E-03 30.00 75.00 NA NA

Inhalation Comments:March 4, 2010 Page 13 of 13

Stack Parameter Data Fugitive Parameter Data Stack Height 10.00 Release Height: 3.00 m
Inside Stack Diameter: 0.10 Length of Release Opening: 10.00 m

Stack Gas Exit Velocity: 0.10 Width of Release Opening: 10.00 m

Stack Gas Temperature: 293.00

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