7/25/12 Page 1 of 122

INITIAL REVIEW EXPOSURE REPORT (IRExR)

Chemical ID: P-12-0283 Reviewer: 

 

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

Exposure Scenario1 Water Landfill Stack Air Fugitive Air

Release activity(ies)2; 

exposure 

calculation(s)3

Drinking Water Fish Ingestion 7Q104 

CC=1 

PDM 

Days 

Exceeded

LADD ADR LADD ADR LADD ADR LADD ADR LADD

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 ADR --- --- --- --- --- --- --- 0.51 --- --- ---

MFG: max LADD --- --- --- --- --- --- 1.28E-04 --- 1.11E-04 --- ---

PROC1: max ADR, 

acute eco

1.73E-02 --- 0.36 --- 354.30 --- --- 3.49E-02 --- 2.13E-04

PROC1: PDM1 --- --- --- --- 300.17 56 --- --- --- --- ---

PROC1: PDM2 --- --- --- --- 220.28 60 --- --- --- --- ---

PROC1: max LADD --- 7.84E-05 --- 9.59E-04 --- --- 9.00E-05 --- 3.94E-04 --- 1.13E-06

PROC2: max ADR, 

acute eco 1.79E-02 --- 0.37 --- 367.24 --- --- 3.49E-02 --- 2.24E-04 ---

PROC2: PDM1 --- --- --- --- 313.12 30 --- --- --- --- ---

PROC2: PDM2 --- --- --- --- 233.22 31 --- --- --- --- ---

PROC2: max LADD --- 4.26E-05 --- 5.21E-04 --- --- 1.64E-04 --- 2.14E-04 --- 6.07E-07

PROC3: max ADR, 

acut eco

1.72E-02 --- 0.36 --- 353.09 --- --- 5.52E-02 --- 1.08E-02 ---

PROC3: max LADD --- 1.56E-05 --- 1.91E-04 --- --- 1.03E-04 --- 1.34E-04 --- 1.14E-05

PROC4: Max ADR, 

acute eco

1.41E-02 --- 0.29 --- 288.66 --- --- 2.39E-02 --- --- ---

PROC4: max LADD --- 1.02E-05 --- 1.25E-04 --- --- 3.25E-05 --- 4.24E-05 --- ---

PROC5: max ADR, 

acute eco

8.44E-03 --- 0.17 --- 173.05 --- --- 3.86E-02 --- --- ---

PROC5: max LADD --- 1.11E-06 --- 1.36E-05 --- --- 1.14E-05 --- 1.49E-05 --- ---

USE1: max ADR, 

PDM, LADD 6.93E-03 1.36E-04 0.13 1.67E-03 141.77 248 8.18E-04 7.57E-03 4.15E-04 4.93E-03 1.08E-04

USE2: max ADR, 

PDM, LADD

1.17E-02 1.54E-04 0.15 1.89E-03 249.25 247 3.19E-04 4.10E-03 2.25E-04 6.80E-03 1.49E-04

USE3: max ADR, 

PDM1 3.07E-02 --- 0.37 --- 652.27 218 --- 1.84E-02 --- 2.21E-02 ---

USE3: PDM2 --- --- --- --- 628.79 247 --- --- --- --- ---

USE3: max LADD --- 3.81E-04 --- 4.67E-03 --- --- 7.79E-04 --- 1.01E-03 --- 4.84E-04

USE4: max ADR, 

LADD --- --- --- --- --- --- 6.72E-05 1.62E-02 8.90E-04 --- ---

USE5: max ADR, 

PDM1

2.46E-04 --- 2.63E-03 --- 5.38 60 --- 7.06E-05 --- 3.77E-03 ---

USE5: max LADD --- 2.49E-06 --- 3.05E-05 --- --- 7.01E-05 --- 3.51E-06 --- 8.24E-05

USE5: PDM2 --- --- --- --- 3.77 67 --- --- --- --- ---

USE6: max ADR, 

acute eco

9.05E-03 --- 0.19 --- 185.57 --- --- 1.34E-02 --- --- ---
7/25/12 Page 2 of 122

USE6: PDM --- --- --- --- 46.39 93 --- --- --- --- ---

USE6: max LADD --- 1.94E-05 --- 2.37E-04 --- --- 3.54E-06 --- 4.61E-06 --- ---

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 concentration values for the 7Q10 streamflow, which is defined as the average streamflow 

the 7 consecutive days of lowest flow within a 10 year period.

Remarks: 

Results Table: Consumer Exposure Results Summary

Scenario

Water (DtD) Dermal Inhalation

Drinking Water Fish Ingestion 7Q10 PDM Days 

Exceeded ADR LADD ADR LADD ADR LADD ADR LADD

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

CEM1: Used Motor 

Oil (dermal) --- --- --- --- --- --- 2.23E+02 1.69E+02 --- ---

1 Consumer Exposure Module within NCEM2 model.

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

Parameter Exp Based Persistent Exceedance Value

Drinking (Surface) Water Dose (mg/kg/day) No No

Fish Ingestion Dose (mg/kg/day) Yes Yes 4.67E-03

Inhalation Dose (mg/kg/day) Yes Yes 7.57E-03

Groundwater Dose (mg/kg/day) No No

Surface Water Release After Treatment (kg/yr) Yes Yes 1.31E+05

Total Release After Treatment (kg/yr) Yes Yes 1.39E+06

Consumer Use? Yes Yes 1.69E+02
7/25/12 Page 3 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:1 Number of Release Sites: 2. 

Release Activity: MFG: max ADR

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 0.00 0.00 820.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 0.00 0.00/0.00 1.00 0.00

Per Site Release: 0.00 0.00/0.00 410.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 4 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 1 RELEASE ACTIVITY:MFG: max ADR

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 2. 

Per Site Fugitive Release: NA kg/site/day

Fugitive Release Days per Year: NA days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: NA kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.00 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

0.00 μg/m3

Per Site Stack Release: 410.00 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 820.00 kg/yr

Max Annual Average Air Concentration (Stack): 1.51 μg/m3

Max 24 Hour Average Air Concentration (Stack): 2760.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 1.11E-04 N/A 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 6.04E-04 N/A 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 0.51 N/A NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 5 of 122

 Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack 

Diameter:

0.10 m Length of Release 

Opening:

N/A

Stack Gas Exit 

Velocity:

0.10 m/sec Width of Release 

Opening:

N/A

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
7/25/12 Page 6 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:2 Number of Release Sites: 2. 

Release Activity: MFG: max LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 0.00 1229.20 820.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 0.00 1.00/0.00 1.00 0.00

Per Site Release: 0.00 614.60/0.00 410.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 7 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 2 ACTIVITY: MFG: max LADD

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

(%)

2. 614.60/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 1.28E-04 30.00 75.00 71.80 1.40

LADCpot (mg/L) 6.56E-03 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 8 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 2 RELEASE ACTIVITY:MFG: max LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 2. 

Per Site Fugitive Release: NA kg/site/day

Fugitive Release Days per Year: NA days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: NA kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.00 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

0.00 μg/m3

Per Site Stack Release: 410.00 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 820.00 kg/yr

Max Annual Average Air Concentration (Stack): 1.51 μg/m3

Max 24 Hour Average Air Concentration (Stack): 2760.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 1.11E-04 N/A 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 6.04E-04 N/A 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 0.51 N/A NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 9 of 122

 Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack 

Diameter:

0.10 m Length of Release 

Opening:

N/A

Stack Gas Exit 

Velocity:

0.10 m/sec Width of Release 

Opening:

N/A

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
7/25/12 Page 10 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:3 Number of Release Sites: 32. 

Release Activity: PROC1: max ADR, acute eco

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 1.67E+04 0.00 1.67E+04 16.32

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 19.00 0.00/0.00 19.00 60.00

Per Site Release: 27.49 0.00/0.00 27.48 8.50E-03

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 11 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 3 Number of Sites: 32 RELEASE ACTIVITY:PROC1: 

max ADR, acute eco

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)

90.00 19. 27.49 2.75 0.00 2856.00

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 9.55 22.20 35.17 41.63

ALL 10 39.60 13.29 7.76 7.57 69.43 206.88 354.30 363.20

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

LADDpot 3.88E-06 2.82E-05 mg/kg/day 4.74E-05 3.45E-04 mg/kg/day

LADCpot 1.99E-04 1.45E-03 mg/L 0.57 4.13 mg/kg

Acute

ADRpot 1.86E-03 1.73E-02 mg/kg/day 4.90E-02 0.36 mg/kg/day

SIC Code Comments: 
7/25/12 Page 12 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 3 RELEASE ACTIVITY:PROC1: max ADR, acute eco

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 32. 

Per Site Fugitive Release: 8.50E-03 kg/site/day

Fugitive Release Days per Year: 60.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 16.32 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

1.53E-02 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

1.16 μg/m3

Per Site Stack Release: 27.48 kg/site/day

Stack Release Days per Year: 19.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 1.67E+04 kg/yr

Max Annual Average Air Concentration (Stack): 1.93 μg/m3

Max 24 Hour Average Air Concentration (Stack): 190.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 1.42E-04 1.13E-06 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 7.72E-04 6.12E-06 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 3.49E-02 2.13E-04 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 13 of 122

 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
7/25/12 Page 14 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:4 Number of Release Sites: 32. 

Release Activity: PROC1: PDM1

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 4.17E+04 0.00 0.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 56.00 0.00/0.00 0.00 0.00

Per Site Release: 23.29 0.00/0.00 0.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 15 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 4 Number of Sites: 32 RELEASE ACTIVITY:PROC1: 

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)

90.00 56. 23.29 2.33 0.00 2856.00

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 8.09 18.81 29.79 35.27

ALL 10 39.60 13.29 7.76 7.57 58.82 175.27 300.17 307.71

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

LADDpot 9.68E-06 7.04E-05 mg/kg/day 1.18E-04 8.62E-04 mg/kg/day

LADCpot 4.96E-04 3.61E-03 mg/L 1.42 10.31 mg/kg

Acute

ADRpot 1.57E-03 1.46E-02 mg/kg/day 4.15E-02 0.30 mg/kg/day

SIC Code Comments: 
7/25/12 Page 16 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 4 RELEASE ACTIVITY: PROC1: 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

1.00 15 56 56.00 23.29 90.00 High
7/25/12 Page 17 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:5 Number of Release Sites: 32. 

Release Activity: PROC1: PDM2

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 3.28E+04 0.00 0.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 60.00 0.00/0.00 0.00 0.00

Per Site Release: 17.09 0.00/0.00 0.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 18 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 5 Number of Sites: 32 RELEASE ACTIVITY:PROC1: 

PDM2

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)

90.00 60. 17.09 1.71 0.00 2856.00

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 5.94 13.80 21.86 25.88

ALL 10 39.60 13.29 7.76 7.57 43.17 128.62 220.28 225.81

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

LADDpot 7.61E-06 5.53E-05 mg/kg/day 9.31E-05 6.77E-04 mg/kg/day

LADCpot 3.90E-04 2.84E-03 mg/L 1.11 8.11 mg/kg

Acute

ADRpot 1.15E-03 1.07E-02 mg/kg/day 3.05E-02 0.22 mg/kg/day

SIC Code Comments: 
7/25/12 Page 19 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 5 RELEASE ACTIVITY: PROC1: PDM2

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

1.00 16 60 60.00 17.09 90.00 High
7/25/12 Page 20 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:6 Number of Release Sites: 32. 

Release Activity: PROC1: max LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 4.65E+04 1.38E+04 4.65E+04 16.32

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 1.00 1.00/0.00 1.00 1.00

Per Site Release: 1452.61 432.10/0.00 1452.10 0.51

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 21 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 6 Number of Sites: 32 RELEASE ACTIVITY:PROC1: 

max LADD

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)

90.00 1. 1452.61 145.26 0.00 2856.00

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 66.05 504.38 1172.97 1858.03 2199.26

ALL 10 39.60 13.29 7.76 7.57 3668.21 1.09E+04 1.87E+04 1.92E+04

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

LADDpot 1.08E-05 7.84E-05 mg/kg/day 1.32E-04 9.59E-04 mg/kg/day

LADCpot 5.53E-04 4.02E-03 mg/L 1.58 11.48 mg/kg

Acute

ADRpot 9.80E-02 0.91 mg/kg/day 2.59 18.82 mg/kg/day

SIC Code Comments: 
7/25/12 Page 22 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 6 ACTIVITY: PROC1: max LADD

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

(%)

32. 432.10/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 9.00E-05 30.00 75.00 71.80 1.40

LADCpot (mg/L) 4.61E-03 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 23 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 6 RELEASE ACTIVITY:PROC1: max LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 32. 

Per Site Fugitive Release: 0.51 kg/site/day

Fugitive Release Days per Year: 1.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 16.32 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

1.53E-02 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

69.70 μg/m3

Per Site Stack Release: 1452.10 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 4.65E+04 kg/yr

Max Annual Average Air Concentration (Stack): 5.36 μg/m3

Max 24 Hour Average Air Concentration (Stack): 9780.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 3.94E-04 1.13E-06 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 2.14E-03 6.12E-06 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 1.80 1.28E-02 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 24 of 122

 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
7/25/12 Page 25 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:7 Number of Release Sites: 32. 

Release Activity: USE1: max ADR, PDM, LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 9.10E+04 1.26E+05 4.90E+04 1568.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 250.00 1.00/0.00 250.00 250.00

Per Site Release: 11.37 3930.00/0.00 6.12 0.20

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 26 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 7 Number of Sites: 32 RELEASE ACTIVITY:USE1: 

max ADR, PDM, LADD

SIC-CODE DESCRIPTION: Plastic Resins & Synthetic Fiber Manufacture

SIC-CODE (S): 2821,2823,2824 EXPOSED POPULATION: Adult

WWT 

REMOVAL

(%)

RELEASE

DAYS

PRETREATMENT 

RELEASE 

(kg/site/day)

POSTTREATMENT 

RELEASE 

(kg/site/day)

DWT

(%) BCF

(L/kg)

90.00 250. 11.37 1.14 0.00 2856.00

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 1321.81 604.40 403.46 328.18 0.86 1.88 2.82 3.46

ALL 10 44.53 13.72 8.02 7.44 25.53 82.87 141.77 152.82

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

LADDpot 4.60E-06 1.36E-04 mg/kg/day 5.62E-05 1.67E-03 mg/kg/day

LADCpot 2.36E-04 7.00E-03 mg/L 0.67 19.98 mg/kg

Acute

ADRpot 1.57E-04 6.93E-03 mg/kg/day 4.41E-03 0.13 mg/kg/day

SIC Code Comments: 
7/25/12 Page 27 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 7 RELEASE ACTIVITY: USE1: max ADR, PDM, LADD

SIC CODE DESCRIPTION: Plastic Resins & Synthetic Fiber Manufacture

ASSOCIATED SIC CODES: 2821,2823,2824

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

1.00 68 248 250.00 11.37 90.00 High
7/25/12 Page 28 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 7 ACTIVITY: USE1: max ADR, PDM, LADD

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

(%)

32. 3930.00/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 8.18E-04 30.00 75.00 71.80 1.40

LADCpot (mg/L) 4.20E-02 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 29 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 7 RELEASE ACTIVITY:USE1: max ADR, PDM, LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 32. 

Per Site Fugitive Release: 0.20 kg/site/day

Fugitive Release Days per Year: 250.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 1568.00 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

1.47 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

26.80 μg/m3

Per Site Stack Release: 6.12 kg/site/day

Stack Release Days per Year: 250.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 4.90E+04 kg/yr

Max Annual Average Air Concentration (Stack): 5.65 μg/m3

Max 24 Hour Average Air Concentration (Stack): 41.20 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 4.15E-04 1.08E-04 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 2.26E-03 5.88E-04 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 7.57E-03 4.93E-03 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 30 of 122

 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
7/25/12 Page 31 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:8 Number of Release Sites: 33. 

Release Activity: PROC2: max ADR, acute eco

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 9404.34 0.00 9401.37 9.10

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 10.00 0.00/0.00 10.00 31.00

Per Site Release: 28.50 0.00/0.00 28.49 8.90E-03

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 32 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 8 Number of Sites: 33 RELEASE ACTIVITY:PROC2: 

max ADR, acute eco

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)

90.00 10. 28.49 2.85 0.00 2856.00

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 9.90 23.01 36.45 43.15

ALL 10 39.60 13.29 7.76 7.57 71.96 214.43 367.24 376.46

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

LADDpot 2.11E-06 1.54E-05 mg/kg/day 2.59E-05 1.88E-04 mg/kg/day

LADCpot 1.08E-04 7.89E-04 mg/L 0.31 2.25 mg/kg

Acute

ADRpot 1.92E-03 1.79E-02 mg/kg/day 5.08E-02 0.37 mg/kg/day

SIC Code Comments: 
7/25/12 Page 33 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 8 RELEASE ACTIVITY:PROC2: max ADR, acute eco

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 33. 

Per Site Fugitive Release: 8.90E-03 kg/site/day

Fugitive Release Days per Year: 31.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 9.10 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

8.26E-03 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

1.22 μg/m3

Per Site Stack Release: 28.49 kg/site/day

Stack Release Days per Year: 10.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 9401.37 kg/yr

Max Annual Average Air Concentration (Stack): 1.05 μg/m3

Max 24 Hour Average Air Concentration (Stack): 190.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 7.72E-05 6.07E-07 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 4.20E-04 3.30E-06 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 3.49E-02 2.24E-04 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 34 of 122

 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
7/25/12 Page 35 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:9 Number of Release Sites: 33. 

Release Activity: PROC2: PDM1

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 2.41E+04 0.00 0.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 30.00 0.00/0.00 0.00 0.00

Per Site Release: 24.30 0.00/0.00 0.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 36 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 9 Number of Sites: 33 RELEASE ACTIVITY:PROC2: 

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)

90.00 30. 24.29 2.43 0.00 2856.00

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 8.44 19.62 31.08 36.79

ALL 10 39.60 13.29 7.76 7.57 61.36 182.83 313.12 320.98

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

LADDpot 5.41E-06 3.93E-05 mg/kg/day 6.62E-05 4.81E-04 mg/kg/day

LADCpot 2.77E-04 2.02E-03 mg/L 0.79 5.76 mg/kg

Acute

ADRpot 1.64E-03 1.53E-02 mg/kg/day 4.33E-02 0.31 mg/kg/day

SIC Code Comments: 
7/25/12 Page 37 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 9 RELEASE ACTIVITY: PROC2: 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

1.00 8 30 30.00 24.30 90.00 High
7/25/12 Page 38 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:10 Number of Release Sites: 33. 

Release Activity: PROC2: PDM2

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 1.85E+04 0.00 0.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 31.00 0.00/0.00 0.00 0.00

Per Site Release: 18.10 0.00/0.00 0.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 39 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 10 Number of Sites: 33 RELEASE ACTIVITY:PROC2: 

PDM2

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)

90.00 31. 18.09 1.81 0.00 2856.00

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 6.28 14.61 23.15 27.40

ALL 10 39.60 13.29 7.76 7.57 45.70 136.18 233.22 239.07

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

LADDpot 4.16E-06 3.03E-05 mg/kg/day 5.10E-05 3.71E-04 mg/kg/day

LADCpot 2.13E-04 1.55E-03 mg/L 0.61 4.43 mg/kg

Acute

ADRpot 1.22E-03 1.14E-02 mg/kg/day 3.22E-02 0.23 mg/kg/day

SIC Code Comments: 
7/25/12 Page 40 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 10 RELEASE ACTIVITY: PROC2: PDM2

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

1.00 8 31 31.00 18.10 90.00 High
7/25/12 Page 41 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:11 Number of Release Sites: 33. 

Release Activity: PROC2: max LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 2.60E+04 2.60E+04 2.60E+04 9.11

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 1.00 1.00/0.00 1.00 1.00

Per Site Release: 789.03 788.76/0.00 788.76 0.28

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 42 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 11 Number of Sites: 33 RELEASE ACTIVITY:PROC2: 

max LADD

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)

90.00 1. 789.03 78.90 0.00 2856.00

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 66.05 273.97 637.14 1009.25 1194.60

ALL 10 39.60 13.29 7.76 7.57 1992.51 5937.06 1.02E+04 1.04E+04

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

LADDpot 5.85E-06 4.26E-05 mg/kg/day 7.17E-05 5.21E-04 mg/kg/day

LADCpot 3.00E-04 2.18E-03 mg/L 0.86 6.24 mg/kg

Acute

ADRpot 5.32E-02 0.50 mg/kg/day 1.41 10.22 mg/kg/day

SIC Code Comments: 
7/25/12 Page 43 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 11 ACTIVITY: PROC2: max LADD

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

(%)

33. 788.76/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 1.64E-04 30.00 75.00 71.80 1.40

LADCpot (mg/L) 8.42E-03 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 44 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 11 RELEASE ACTIVITY:PROC2: max LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 33. 

Per Site Fugitive Release: 0.28 kg/site/day

Fugitive Release Days per Year: 1.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 9.11 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

8.26E-03 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

37.70 μg/m3

Per Site Stack Release: 788.76 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 2.60E+04 kg/yr

Max Annual Average Air Concentration (Stack): 2.91 μg/m3

Max 24 Hour Average Air Concentration (Stack): 5310.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 2.14E-04 6.07E-07 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 1.16E-03 3.30E-06 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 0.98 6.93E-03 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 45 of 122

 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
7/25/12 Page 46 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:12 Number of Release Sites: 33. 

Release Activity: USE2: max ADR, PDM, LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 5.18E+04 5.06E+04 2.73E+04 2235.75

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 250.00 1.00/0.00 250.00 250.00

Per Site Release: 6.28 1532.75/0.00 3.31 0.27

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 47 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 12 Number of Sites: 33 RELEASE ACTIVITY:USE2: 

max ADR, PDM, LADD

SIC-CODE DESCRIPTION: Rubber Products Manufacture

SIC-CODE (S): 3011,3021,3031,3041 EXPOSED POPULATION: Adult

WWT 

REMOVAL

(%)

RELEASE

DAYS

PRETREATMENT 

RELEASE 

(kg/site/day)

POSTTREATMENT 

RELEASE 

(kg/site/day)

DWT

(%) BCF

(L/kg)

90.00 250. 6.28 0.63 0.00 2856.00

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 50 255.71 132.96 84.15 69.21 2.46 4.72 7.46 9.08

ALL 10 21.78 4.48 2.52 2.35 28.84 140.20 249.25 267.28

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

LADDpot 1.31E-05 1.54E-04 mg/kg/day 1.61E-04 1.89E-03 mg/kg/day

LADCpot 6.73E-04 7.90E-03 mg/L 1.92 22.57 mg/kg

Acute

ADRpot 3.95E-04 1.17E-02 mg/kg/day 1.26E-02 0.15 mg/kg/day

SIC Code Comments: 
7/25/12 Page 48 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 12 RELEASE ACTIVITY: USE2: max ADR, PDM, LADD

SIC CODE DESCRIPTION: Rubber Products Manufacture

ASSOCIATED SIC CODES: 3011,3021,3031,3041

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

1.00 68 247 250.00 6.28 90.00 High
7/25/12 Page 49 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 12 ACTIVITY: USE2: max ADR, PDM, LADD

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

(%)

33. 1532.75/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 3.19E-04 30.00 75.00 71.80 1.40

LADCpot (mg/L) 1.64E-02 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 50 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 12 RELEASE ACTIVITY:USE2: max ADR, PDM, LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 33. 

Per Site Fugitive Release: 0.27 kg/site/day

Fugitive Release Days per Year: 250.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 2235.75 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

2.03 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

37.00 μg/m3

Per Site Stack Release: 3.31 kg/site/day

Stack Release Days per Year: 250.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 2.73E+04 kg/yr

Max Annual Average Air Concentration (Stack): 3.06 μg/m3

Max 24 Hour Average Air Concentration (Stack): 22.30 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 2.25E-04 1.49E-04 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 1.22E-03 8.12E-04 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 4.10E-03 6.80E-03 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 51 of 122

 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
7/25/12 Page 52 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:13 Number of Release Sites: 110. 

Release Activity: PROC3: max ADR, acut eco

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 1.21E+04 0.00 1.95E+04 567.60

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 4.00 0.00/0.00 4.00 12.00

Per Site Release: 27.40 0.00/0.00 44.40 0.43

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 53 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 13 Number of Sites: 110 RELEASE ACTIVITY:PROC3: 

max ADR, acut eco

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)

90.00 4. 27.4 2.74 0.00 2856.00

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 9.51 22.13 35.05 41.48

ALL 10 39.60 13.29 7.76 7.57 69.19 206.17 353.09 361.96

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

LADDpot 8.13E-07 5.91E-06 mg/kg/day 9.95E-06 7.24E-05 mg/kg/day

LADCpot 4.17E-05 3.03E-04 mg/L 0.12 0.87 mg/kg

Acute

ADRpot 1.85E-03 1.72E-02 mg/kg/day 4.88E-02 0.36 mg/kg/day

SIC Code Comments: 
7/25/12 Page 54 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 13 RELEASE ACTIVITY:PROC3: max ADR, acut eco

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 110. 

Per Site Fugitive Release: 0.43 kg/site/day

Fugitive Release Days per Year: 12.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 567.60 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.15 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

58.80 μg/m3

Per Site Stack Release: 44.40 kg/site/day

Stack Release Days per Year: 4.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 1.95E+04 kg/yr

Max Annual Average Air Concentration (Stack): 0.66 μg/m3

Max 24 Hour Average Air Concentration (Stack): 300.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 4.82E-05 1.14E-05 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 2.62E-04 6.20E-05 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 5.52E-02 1.08E-02 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 55 of 122

 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
7/25/12 Page 56 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:14 Number of Release Sites: 110. 

Release Activity: PROC3: max LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 3.18E+04 5.42E+04 5.42E+04 567.60

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 1.00 1.00/0.00 1.00 1.00

Per Site Release: 289.00 493.00/0.00 493.00 5.16

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 57 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 14 Number of Sites: 110 RELEASE ACTIVITY:PROC3: 

max LADD

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)

90.00 1. 289. 28.90 0.00 2856.00

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 66.05 100.35 233.37 369.66 437.55

ALL 10 39.60 13.29 7.76 7.57 729.80 2174.57 3724.23 3817.70

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

LADDpot 2.14E-06 1.56E-05 mg/kg/day 2.62E-05 1.91E-04 mg/kg/day

LADCpot 1.10E-04 8.00E-04 mg/L 0.31 2.28 mg/kg

Acute

ADRpot 1.95E-02 0.18 mg/kg/day 0.51 3.74 mg/kg/day

SIC Code Comments: 
7/25/12 Page 58 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 14 ACTIVITY: PROC3: max LADD

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

(%)

110. 493.00/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 1.03E-04 30.00 75.00 71.80 1.40

LADCpot (mg/L) 5.27E-03 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 59 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 14 RELEASE ACTIVITY:PROC3: max LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 110. 

Per Site Fugitive Release: 5.16 kg/site/day

Fugitive Release Days per Year: 1.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 567.60 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.15 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

710.00 μg/m3

Per Site Stack Release: 493.00 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 5.42E+04 kg/yr

Max Annual Average Air Concentration (Stack): 1.82 μg/m3

Max 24 Hour Average Air Concentration (Stack): 3320.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 1.34E-04 1.14E-05 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 7.28E-04 6.20E-05 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 0.61 0.13 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 60 of 122

 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
7/25/12 Page 61 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:15 Number of Release Sites: 250. 

Release Activity: USE3: max ADR, PDM1

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 9.38E+05 0.00 8.29E+05 5.50E+04

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 218.00 0.00/0.00 218.00 247.00

Per Site Release: 17.22 0.00/0.00 15.22 0.89

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 62 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 15 Number of Sites: 250 RELEASE ACTIVITY:USE3: 

max ADR, PDM1

SIC-CODE DESCRIPTION: Metal Finishing

SIC-CODE (S): 34xx - 39xx EXPOSED POPULATION: Adult

WWT 

REMOVAL

(%)

RELEASE

DAYS

PRETREATMENT 

RELEASE 

(kg/site/day)

POSTTREATMENT 

RELEASE 

(kg/site/day)

DWT

(%) BCF

(L/kg)

90.00 218. 17.22 1.72 0.00 2856.00

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 50 300.46 107.45 67.50 55.59 5.73 16.03 25.51 30.98

ALL 10 23.74 4.69 2.64 2.27 72.54 367.16 652.27 758.59

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

LADDpot 2.67E-05 3.38E-04 mg/kg/day 3.27E-04 4.14E-03 mg/kg/day

LADCpot 1.37E-03 1.73E-02 mg/L 3.91 49.49 mg/kg

Acute

ADRpot 1.34E-03 3.07E-02 mg/kg/day 2.94E-02 0.37 mg/kg/day

SIC Code Comments: 
7/25/12 Page 63 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 15 RELEASE ACTIVITY: USE3: max ADR, PDM1

SIC CODE DESCRIPTION: Metal Finishing

ASSOCIATED SIC CODES: 34xx - 39xx

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

1.00 60 218 218.00 17.22 90.00 High
7/25/12 Page 64 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 15 RELEASE ACTIVITY:USE3: max ADR, PDM1

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 250. 

Per Site Fugitive Release: 0.89 kg/site/day

Fugitive Release Days per Year: 247.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 5.50E+04 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

6.58 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

120.00 μg/m3

Per Site Stack Release: 15.22 kg/site/day

Stack Release Days per Year: 218.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 8.29E+05 kg/yr

Max Annual Average Air Concentration (Stack): 12.20 μg/m3

Max 24 Hour Average Air Concentration (Stack): 100.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 8.97E-04 4.84E-04 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 4.88E-03 2.63E-03 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 1.84E-02 2.21E-02 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 65 of 122

 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
7/25/12 Page 66 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:16 Number of Release Sites: 250. 

Release Activity: USE3: PDM2

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 1.03E+06 0.00 0.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 247.00 0.00/0.00 0.00 0.00

Per Site Release: 16.60 0.00/0.00 0.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 67 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 16 Number of Sites: 250 RELEASE ACTIVITY:USE3: 

PDM2

SIC-CODE DESCRIPTION: Metal Finishing

SIC-CODE (S): 34xx - 39xx EXPOSED POPULATION: Adult

WWT 

REMOVAL

(%)

RELEASE

DAYS

PRETREATMENT 

RELEASE 

(kg/site/day)

POSTTREATMENT 

RELEASE 

(kg/site/day)

DWT

(%) BCF

(L/kg)

90.00 247. 16.6 1.66 0.00 2856.00

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 50 300.46 107.45 67.50 55.59 5.52 15.45 24.59 29.86

ALL 10 23.74 4.69 2.64 2.27 69.92 353.94 628.79 731.28

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

LADDpot 2.92E-05 3.69E-04 mg/kg/day 3.57E-04 4.52E-03 mg/kg/day

LADCpot 1.50E-03 1.89E-02 mg/L 4.27 54.06 mg/kg

Acute

ADRpot 1.29E-03 2.96E-02 mg/kg/day 2.83E-02 0.36 mg/kg/day

SIC Code Comments: 
7/25/12 Page 68 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 16 RELEASE ACTIVITY: USE3: PDM2

SIC CODE DESCRIPTION: Metal Finishing

ASSOCIATED SIC CODES: 34xx - 39xx

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

1.00 68 247 247.00 16.60 90.00 High
7/25/12 Page 69 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:17 Number of Release Sites: 250. 

Release Activity: USE3: max LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 1.06E+06 9.35E+05 9.35E+05 5.50E+04

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 1.00 1.00/0.00 1.00 1.00

Per Site Release: 4235.36 3741.36/0.00 3741.36 219.83

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 70 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 17 Number of Sites: 250 RELEASE ACTIVITY:USE3: 

max LADD

SIC-CODE DESCRIPTION: Metal Finishing

SIC-CODE (S): 34xx - 39xx EXPOSED POPULATION: Adult

WWT 

REMOVAL

(%)

RELEASE

DAYS

PRETREATMENT 

RELEASE 

(kg/site/day)

POSTTREATMENT 

RELEASE 

(kg/site/day)

DWT

(%) BCF

(L/kg)

90.00 1. 4235.36 423.54 0.00 2856.00

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 50 300.46 107.45 67.50 55.59 1409.63 3941.70 6274.61 7618.92

ALL 10 23.74 4.69 2.64 2.27 1.78E+04 9.03E+04 1.60E+05 1.87E+05

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

LADDpot 3.01E-05 3.81E-04 mg/kg/day 3.69E-04 4.67E-03 mg/kg/day

LADCpot 1.54E-03 1.96E-02 mg/L 4.41 55.84 mg/kg

Acute

ADRpot 0.33 7.55 mg/kg/day 7.23 91.54 mg/kg/day

SIC Code Comments: 
7/25/12 Page 71 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 17 ACTIVITY: USE3: max LADD

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

(%)

250. 3741.36/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 7.79E-04 30.00 75.00 71.80 1.40

LADCpot (mg/L) 4.00E-02 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 72 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 17 RELEASE ACTIVITY:USE3: max LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 250. 

Per Site Fugitive Release: 219.83 kg/site/day

Fugitive Release Days per Year: 1.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 5.50E+04 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

6.58 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

3.00E+04 μg/m3

Per Site Stack Release: 3741.36 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 9.35E+05 kg/yr

Max Annual Average Air Concentration (Stack): 13.80 μg/m3

Max 24 Hour Average Air Concentration (Stack): 2.52E+04 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 1.01E-03 4.84E-04 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 5.52E-03 2.63E-03 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 4.63 5.52 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 73 of 122

 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
7/25/12 Page 74 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:18 Number of Release Sites: 15. 

Release Activity: PROC4: Max ADR, acute eco

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 672.00 0.00 588.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 2.00 0.00/0.00 2.00 0.00

Per Site Release: 22.40 0.00/0.00 19.60 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 75 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 18 Number of Sites: 15 RELEASE ACTIVITY:PROC4: 

Max ADR, acute eco

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)

90.00 2. 22.4 2.24 0.00 2856.00

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 7.78 18.09 28.65 33.91

ALL 10 39.60 13.29 7.76 7.57 56.57 168.55 288.66 295.90

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

LADDpot 3.32E-07 2.42E-06 mg/kg/day 4.07E-06 2.96E-05 mg/kg/day

LADCpot 1.70E-05 1.24E-04 mg/L 4.87E-02 0.35 mg/kg

Acute

ADRpot 1.51E-03 1.41E-02 mg/kg/day 3.99E-02 0.29 mg/kg/day

SIC Code Comments: 
7/25/12 Page 76 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 18 RELEASE ACTIVITY:PROC4: Max ADR, acute eco

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 15. 

Per Site Fugitive Release: NA kg/site/day

Fugitive Release Days per Year: NA days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: NA kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.00 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

0.00 μg/m3

Per Site Stack Release: 19.60 kg/site/day

Stack Release Days per Year: 2.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 588.00 kg/yr

Max Annual Average Air Concentration (Stack): 0.14 μg/m3

Max 24 Hour Average Air Concentration (Stack): 130.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 1.07E-05 N/A 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 5.80E-05 N/A 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 2.39E-02 N/A NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 77 of 122

 Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack 

Diameter:

0.10 m Length of Release 

Opening:

N/A

Stack Gas Exit 

Velocity:

0.10 m/sec Width of Release 

Opening:

N/A

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
7/25/12 Page 78 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:19 Number of Release Sites: 15. 

Release Activity: PROC4: max LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 2844.00 2340.00 2340.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 1.00 1.00/0.00 1.00 0.00

Per Site Release: 189.60 156.00/0.00 156.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 79 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 19 Number of Sites: 15 RELEASE ACTIVITY:PROC4: 

max LADD

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)

90.00 1. 189.6 18.96 0.00 2856.00

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 65.83 153.10 242.52 287.06

ALL 10 39.60 13.29 7.76 7.57 478.79 1426.64 2443.30 2504.62

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

LADDpot 1.41E-06 1.02E-05 mg/kg/day 1.72E-05 1.25E-04 mg/kg/day

LADCpot 7.21E-05 5.25E-04 mg/L 0.21 1.50 mg/kg

Acute

ADRpot 1.28E-02 0.12 mg/kg/day 0.34 2.46 mg/kg/day

SIC Code Comments: 
7/25/12 Page 80 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 19 ACTIVITY: PROC4: max LADD

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

(%)

15. 156.00/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 3.25E-05 30.00 75.00 71.80 1.40

LADCpot (mg/L) 1.67E-03 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 81 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 19 RELEASE ACTIVITY:PROC4: max LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 15. 

Per Site Fugitive Release: NA kg/site/day

Fugitive Release Days per Year: NA days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: NA kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.00 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

0.00 μg/m3

Per Site Stack Release: 156.00 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 2340.00 kg/yr

Max Annual Average Air Concentration (Stack): 0.58 μg/m3

Max 24 Hour Average Air Concentration (Stack): 1050.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 4.24E-05 N/A 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 2.30E-04 N/A 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 0.19 N/A NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 82 of 122

 Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack 

Diameter:

0.10 m Length of Release 

Opening:

N/A

Stack Gas Exit 

Velocity:

0.10 m/sec Width of Release 

Opening:

N/A

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
7/25/12 Page 83 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:20 Number of Release Sites: 16. 

Release Activity: USE4: max ADR, acute eco, LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 0.00 5164.00 5.24E+04 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 0.00 1.00/0.00 250.00 0.00

Per Site Release: 0.00 322.75/0.00 13.09 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 84 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 20 ACTIVITY: USE4: max ADR, acute eco, LADD

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

(%)

16. 322.75/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 6.72E-05 30.00 75.00 71.80 1.40

LADCpot (mg/L) 3.45E-03 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 85 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 20 RELEASE ACTIVITY:USE4: max ADR, acute eco, LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 16. 

Per Site Fugitive Release: NA kg/site/day

Fugitive Release Days per Year: NA days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: NA kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.00 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

0.00 μg/m3

Per Site Stack Release: 13.09 kg/site/day

Stack Release Days per Year: 250.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 5.24E+04 kg/yr

Max Annual Average Air Concentration (Stack): 12.10 μg/m3

Max 24 Hour Average Air Concentration (Stack): 88.20 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 8.90E-04 N/A 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 4.84E-03 N/A 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 1.62E-02 N/A NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 86 of 122

 Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack 

Diameter:

0.10 m Length of Release 

Opening:

N/A

Stack Gas Exit 

Velocity:

0.10 m/sec Width of Release 

Opening:

N/A

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
7/25/12 Page 87 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:21 Number of Release Sites: 33. 

Release Activity: PROC5: max ADR, acute eco

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 443.16 0.00 1008.48 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 1.00 0.00/0.00 1.00 0.00

Per Site Release: 13.43 0.00/0.00 30.56 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 88 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 21 Number of Sites: 33 RELEASE ACTIVITY:PROC5: 

max ADR, acute eco

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)

90.00 1. 13.42 1.34 0.00 2856.00

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 4.66 10.84 17.18 20.33

ALL 10 39.60 13.29 7.76 7.57 33.91 101.05 173.05 177.40

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

LADDpot 9.96E-08 7.25E-07 mg/kg/day 1.22E-06 8.87E-06 mg/kg/day

LADCpot 5.11E-06 3.72E-05 mg/L 1.46E-02 0.11 mg/kg

Acute

ADRpot 9.06E-04 8.44E-03 mg/kg/day 2.39E-02 0.17 mg/kg/day

SIC Code Comments: 
7/25/12 Page 89 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 21 RELEASE ACTIVITY:PROC5: max ADR, acute eco

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 33. 

Per Site Fugitive Release: NA kg/site/day

Fugitive Release Days per Year: NA days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: NA kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.00 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

0.00 μg/m3

Per Site Stack Release: 30.56 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 1008.48 kg/yr

Max Annual Average Air Concentration (Stack): 0.11 μg/m3

Max 24 Hour Average Air Concentration (Stack): 210.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 8.31E-06 N/A 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 4.52E-05 N/A 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 3.86E-02 N/A NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 90 of 122

 Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack 

Diameter:

0.10 m Length of Release 

Opening:

N/A

Stack Gas Exit 

Velocity:

0.10 m/sec Width of Release 

Opening:

N/A

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
7/25/12 Page 91 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:22 Number of Release Sites: 33. 

Release Activity: PROC5: max LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 681.71 1812.36 1812.36 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 1.00 1.00/0.00 1.00 0.00

Per Site Release: 20.66 54.92/0.00 54.92 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 92 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 22 Number of Sites: 33 RELEASE ACTIVITY:PROC5: 

max LADD

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)

90.00 1. 20.65 2.07 0.00 2856.00

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 7.17 16.68 26.42 31.28

ALL 10 39.60 13.29 7.76 7.57 52.17 155.44 266.21 272.89

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

LADDpot 1.53E-07 1.11E-06 mg/kg/day 1.88E-06 1.36E-05 mg/kg/day

LADCpot 7.86E-06 5.72E-05 mg/L 2.25E-02 0.16 mg/kg

Acute

ADRpot 1.39E-03 1.30E-02 mg/kg/day 3.68E-02 0.27 mg/kg/day

SIC Code Comments: 
7/25/12 Page 93 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 22 ACTIVITY: PROC5: max LADD

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

(%)

33. 54.92/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 1.14E-05 30.00 75.00 71.80 1.40

LADCpot (mg/L) 5.87E-04 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 94 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 22 RELEASE ACTIVITY:PROC5: max LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 33. 

Per Site Fugitive Release: NA kg/site/day

Fugitive Release Days per Year: NA days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: NA kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.00 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

0.00 μg/m3

Per Site Stack Release: 54.92 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 1812.36 kg/yr

Max Annual Average Air Concentration (Stack): 0.20 μg/m3

Max 24 Hour Average Air Concentration (Stack): 370.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 1.49E-05 N/A 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 8.12E-05 N/A 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 6.80E-02 N/A NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 95 of 122

 Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack 

Diameter:

0.10 m Length of Release 

Opening:

N/A

Stack Gas Exit 

Velocity:

0.10 m/sec Width of Release 

Opening:

N/A

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
7/25/12 Page 96 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:23 Number of Release Sites: 38. 

Release Activity: USE5: max ADR, PDM1

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 379.05 0.00 379.05 1419.30

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 175.00 0.00/0.00 175.00 249.00

Per Site Release: 5.70E-02 0.00/0.00 5.70E-02 0.15

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 97 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 23 Number of Sites: 38 RELEASE ACTIVITY:USE5: 

max ADR, PDM1

SIC-CODE DESCRIPTION: POTW's (All facilities)

SIC-CODE (S): 4952 EXPOSED POPULATION: Adult

WWT 

REMOVAL

(%)

RELEASE

DAYS

PRETREATMENT 

RELEASE 

(kg/site/day)

POSTTREATMENT 

RELEASE 

(kg/site/day)

DWT

(%) BCF

(L/kg)

90.00 175. 0.057 5.70E-03 0.00 2856.00

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 50 125.56 44.02 26.80 22.53 4.54E-02 0.13 0.21 0.25

ALL 10 11.11 1.94 1.06 0.96 0.51 2.94 5.38 5.94

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

LADDpot 1.70E-07 1.92E-06 mg/kg/day 2.08E-06 2.35E-05 mg/kg/day

LADCpot 8.71E-06 9.84E-05 mg/L 2.49E-02 0.28 mg/kg

Acute

ADRpot 1.08E-05 2.46E-04 mg/kg/day 2.33E-04 2.63E-03 mg/kg/day

SIC Code Comments: 
7/25/12 Page 98 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 23 RELEASE ACTIVITY: USE5: max ADR, PDM1

SIC CODE DESCRIPTION: POTW's (All facilities)

ASSOCIATED SIC CODES: 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

1.00 16 60 175.00 5.70E-02 90.00 High
7/25/12 Page 99 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 23 RELEASE ACTIVITY:USE5: max ADR, PDM1

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 38. 

Per Site Fugitive Release: 0.15 kg/site/day

Fugitive Release Days per Year: 249.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 1419.30 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

1.12 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

20.50 μg/m3

Per Site Stack Release: 5.70E-02 kg/site/day

Stack Release Days per Year: 175.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 379.05 kg/yr

Max Annual Average Air Concentration (Stack): 3.68E-02 μg/m3

Max 24 Hour Average Air Concentration (Stack): 0.38 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 2.71E-06 8.24E-05 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 1.47E-05 4.48E-04 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 7.06E-05 3.77E-03 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 100 of 122

 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
7/25/12 Page 101 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:24 Number of Release Sites: 38. 

Release Activity: USE5: max LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 491.53 1.28E+04 491.53 1419.30

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 1.00 1.00/0.00 1.00 1.00

Per Site Release: 12.94 336.63/0.00 12.94 37.35

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 102 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 24 Number of Sites: 38 RELEASE ACTIVITY:USE5: 

max LADD

SIC-CODE DESCRIPTION: POTW's (All facilities)

SIC-CODE (S): 4952 EXPOSED POPULATION: Adult

WWT

REMOVAL

(%)

RELEASE

DAYS

PRETREATMENT 

RELEASE 

(kg/site/day)

POSTTREATMENT 

RELEASE 

(kg/site/day)

DWT

(%) BCF

(L/kg)

90.00 1. 12.93 1.29 0.00 2856.00

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 50 125.56 44.02 26.80 22.53 10.30 29.38 48.26 57.41

ALL 10 11.11 1.94 1.06 0.96 116.43 666.75 1220.28 1347.40

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

LADDpot 2.20E-07 2.49E-06 mg/kg/day 2.69E-06 3.05E-05 mg/kg/day

LADCpot 1.13E-05 1.28E-04 mg/L 3.22E-02 0.36 mg/kg

Acute

ADRpot 2.46E-03 5.57E-02 mg/kg/day 5.29E-02 0.60 mg/kg/day

SIC Code Comments: 
7/25/12 Page 103 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 24 ACTIVITY: USE5: max LADD

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

(%)

38. 336.63/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 7.01E-05 30.00 75.00 71.80 1.40

LADCpot (mg/L) 3.60E-03 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 104 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 24 RELEASE ACTIVITY:USE5: max LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 38. 

Per Site Fugitive Release: 37.35 kg/site/day

Fugitive Release Days per Year: 1.00 days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: 1419.30 kg/yr

Max Annual Average Air Concentration 

(Fugitive):

1.12 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

5100.00 μg/m3

Per Site Stack Release: 12.94 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 491.53 kg/yr

Max Annual Average Air Concentration (Stack): 4.77E-02 μg/m3

Max 24 Hour Average Air Concentration (Stack): 87.10 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 3.51E-06 8.24E-05 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 1.91E-05 4.48E-04 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 1.60E-02 0.94 NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 105 of 122

 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
7/25/12 Page 106 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:25 Number of Release Sites: 38. 

Release Activity: USE5: PDM2

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 378.48 0.00 0.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 249.00 0.00/0.00 0.00 0.00

Per Site Release: 4.00E-02 0.00/0.00 0.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 107 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 25 Number of Sites: 38 RELEASE ACTIVITY:USE5: 

PDM2

SIC-CODE DESCRIPTION: POTW's (All facilities)

SIC-CODE (S): 4952 EXPOSED POPULATION: Adult

WWT 

REMOVAL

(%)

RELEASE

DAYS

PRETREATMENT 

RELEASE 

(kg/site/day)

POSTTREATMENT 

RELEASE 

(kg/site/day)

DWT

(%) BCF

(L/kg)

90.00 249. 0.04 4.00E-03 0.00 2856.00

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 50 125.56 44.02 26.80 22.53 3.19E-02 9.09E-02 0.15 0.18

ALL 10 11.11 1.94 1.06 0.96 0.36 2.06 3.77 4.17

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

LADDpot 1.70E-07 1.92E-06 mg/kg/day 2.07E-06 2.34E-05 mg/kg/day

LADCpot 8.69E-06 9.82E-05 mg/L 2.48E-02 0.28 mg/kg

Acute

ADRpot 7.59E-06 1.72E-04 mg/kg/day 1.63E-04 1.85E-03 mg/kg/day

SIC Code Comments: 
7/25/12 Page 108 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 25 RELEASE ACTIVITY: USE5: PDM2

SIC CODE DESCRIPTION: POTW's (All facilities)

ASSOCIATED SIC CODES: 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

1.00 18 67 249.00 4.00E-02 90.00 High
7/25/12 Page 109 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:26 Number of Release Sites: 11. 

Release Activity: USE6: max ADR, acute eco

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 158.40 0.00 118.80 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 1.00 0.00/0.00 1.00 0.00

Per Site Release: 14.40 0.00/0.00 10.80 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 110 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 26 Number of Sites: 11 RELEASE ACTIVITY:USE6: 

max ADR, acute eco

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)

90.00 1. 14.4 1.44 0.00 2856.00

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 5.00 11.63 18.42 21.80

ALL 10 39.60 13.29 7.76 7.57 36.36 108.35 185.57 190.22

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

LADDpot 1.07E-07 7.77E-07 mg/kg/day 1.31E-06 9.51E-06 mg/kg/day

LADCpot 5.48E-06 3.99E-05 mg/L 1.56E-02 0.11 mg/kg

Acute

ADRpot 9.72E-04 9.05E-03 mg/kg/day 2.57E-02 0.19 mg/kg/day

SIC Code Comments: 
7/25/12 Page 111 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 26 RELEASE ACTIVITY:USE6: max ADR, acute eco

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 11. 

Per Site Fugitive Release: NA kg/site/day

Fugitive Release Days per Year: NA days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: NA kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.00 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

0.00 μg/m3

Per Site Stack Release: 10.80 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 118.80 kg/yr

Max Annual Average Air Concentration (Stack): 3.99E-02 μg/m3

Max 24 Hour Average Air Concentration (Stack): 72.80 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 2.93E-06 N/A 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 1.60E-05 N/A 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 1.34E-02 N/A NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 112 of 122

 Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack 

Diameter:

0.10 m Length of Release 

Opening:

N/A

Stack Gas Exit 

Velocity:

0.10 m/sec Width of Release 

Opening:

N/A

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
7/25/12 Page 113 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:27 Number of Release Sites: 11. 

Release Activity: USE6: PDM

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 3762.00 0.00 0.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 95.00 0.00/0.00 0.00 0.00

Per Site Release: 3.60 0.00/0.00 0.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 114 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 27 Number of Sites: 11 RELEASE ACTIVITY:USE6: 

PDM

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)

90.00 95. 3.6 0.36 0.00 2856.00

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 1.25 2.91 4.60 5.45

ALL 10 39.60 13.29 7.76 7.57 9.09 27.09 46.39 47.56

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

LADDpot 2.54E-06 1.85E-05 mg/kg/day 3.11E-05 2.26E-04 mg/kg/day

LADCpot 1.30E-04 9.46E-04 mg/L 0.37 2.70 mg/kg

Acute

ADRpot 2.43E-04 2.26E-03 mg/kg/day 6.41E-03 4.66E-02 mg/kg/day

SIC Code Comments: 
7/25/12 Page 115 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC CODE EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 27 RELEASE ACTIVITY: USE6: PDM

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

1.00 26 93 95.00 3.60 90.00 High
7/25/12 Page 116 of 122

 INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283 Assessor: 

ENVIRONMENTAL RELEASES

Scenario#:28 Number of Release Sites: 11. 

Release Activity: USE6: max LADD

Release Description: WATER LANDFILL

Non-sludge/Sludge

STACK FUGITIVE

Total Releases: 3949.00 187.00 187.00 0.00

(kg/yr) (kg/yr) (kg/yr) (kg/yr)

Non-sludge/Sludge

Release Days/yr: 1.00 1.00/0.00 1.00 0.00

Per Site Release: 359.00 17.00/0.00 17.00 0.00

(kg/site/day) (kg/site/day) (kg/site/day) (kg/site/day)

Remarks: 
7/25/12 Page 117 of 122

INITIAL REVIEW EXPOSURE REPORT

 Chemical ID: P-12-0283

SIC-CODE BASED HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 28 Number of Sites: 11 RELEASE ACTIVITY:USE6: 

max LADD

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)

90.00 1. 359. 35.90 0.00 2856.00

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 66.05 124.65 289.89 459.20 543.53

ALL 10 39.60 13.29 7.76 7.57 906.57 2701.28 4626.29 4742.40

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

LADDpot 2.66E-06 1.94E-05 mg/kg/day 3.26E-05 2.37E-04 mg/kg/day

LADCpot 1.37E-04 9.93E-04 mg/L 0.39 2.84 mg/kg

Acute

ADRpot 2.42E-02 0.23 mg/kg/day 0.64 4.65 mg/kg/day

SIC Code Comments: 
7/25/12 Page 118 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES

SCENARIO #: 28 ACTIVITY: USE6: max LADD

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

(%)

11. 17.00/1.00 0.00/0.00 Slow 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

LADDpot (mg/kg/day) 3.54E-06 30.00 75.00 71.80 1.40

LADCpot (mg/L) 1.82E-04 30.00 75.00 NA NA

REMARKS:
7/25/12 Page 119 of 122

INITIAL REVIEW EXPOSURE REPORT

Chemical ID: P-12-0283

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT)

SCENARIO #: 28 RELEASE ACTIVITY:USE6: max LADD

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3

EXPOSED POPULATION: Adult

Number of Sites: 11. 

Per Site Fugitive Release: NA kg/site/day

Fugitive Release Days per Year: NA days

% Removal via Fugitive Release: 0.00 %

Total Fugitive Release: NA kg/yr

Max Annual Average Air Concentration 

(Fugitive):

0.00 μg/m3

Max 24 Hour Average Air 

Concentration(Fugitive):

0.00 μg/m3

Per Site Stack Release: 17.00 kg/site/day

Stack Release Days per Year: 1.00 days

% Removal via Stack Release: 0.00 %

Total Stack Release: 187.00 kg/yr

Max Annual Average Air Concentration (Stack): 6.27E-02 μg/m3

Max 24 Hour Average Air Concentration (Stack): 110.00 μg/m3

Exposure Units

Results

(Stack)

Results

(Fugitive)

ASSUMPTIONS

ED

(years)

AT

(years)

BW

(kg)

Inh. Rate 

(m3/hr)

Cancer

LADDpot (mg/kg/day) 4.61E-06 N/A 30.00 75.00 71.80 0.55

LADCpot (mg/m3) 2.51E-05 N/A 30.00 75.00 NA NA

Acute

ADRpot (mg/kg/day) 2.02E-02 N/A NA 1 day 71.80 0.55

Inhalation Comments: 
7/25/12 Page 120 of 122

 Stack Parameter Data Fugitive Parameter Data

Stack Height 10.00 m Release Height: N/A

Inside Stack 

Diameter:

0.10 m Length of Release 

Opening:

N/A

Stack Gas Exit 

Velocity:

0.10 m/sec Width of Release 

Opening:

N/A

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
7/25/12 Page 121 of 122

CEM Inputs ID Number: (null)

Product: unknown Chemical Name: P-12-0283

Scenario: Used Motor Oil Population: Adult

Molecular Weight (g/mole): 302

Consumer Product Weight Fraction -

Central Tendency (unitless):

0.3 Consumer Product Weight Fraction -

High-End (unitless):

0.3

Inhalation Inputs

There are no Inhalation inputs for this scenario.

Activity Patterns

There are no Activity Patterns for this scenario.

Dermal Inputs

Frequency of Use - (chronic) (events/yr): 12 SA/BW - (cm2/kg): 0.1114

Frequency of Use - (acute) (events/day): 1

Exposure Duration (years) chronic: 57

Exposure Duration (days) acute: 1

Amount Retained/Absorbed to Skin 

(g/cm2-event):

0.02375

Averaging Time (chronic) (days): 2.74e+04 Averaging Time (acute) (days) : 1
7/25/12 Page 122 of 122

CEM Dermal Exposure Estimates

ID Number: (null)

Scenario: Used Motor Oil Population: Adult

Exposure Duration (years) chronic: 57 Exposure Duration (days) acute: 1

Exposure Units Result AT (days)

Chronic Cancer

 LADDpot (mg/kg-day) 1.69e+02 2.74e+04

Acute

 ADRpot (mg/kg-day) 2.23e+02 1

LADD - Lifetime Average Daily Dose (mg/kg-day)

ADR - Acute Dose Rate (mg/kg-day)

Note: 75 years = 2.738e+04 days pot - potential dose

Note: The general Agency guidance for assessing short-term, infrequent events (for most chemicals, an exposure of 

less than 24 hours that occurs no more frequently than monthly) is to treat such events as independent, acute 

exposures rather than as chronic exposure. (Methods for Exposure-Response Analysis for Acute Inhalation 

Exposure to Chemicals (External Review Draft). EPA/600/R-98/051. April 1998)