10/27/2010 Page 1 of 47 

INITIAL REVIEW EXPOSURE REPORT (IRExR) 

 Chemical ID: S-11-0001 Reviewer: 

 

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

Exposure 

Scenario1 

 

ADR LADD ADR LADD 7Q104 

CC = 

170 

PDM 

Days 

Exceede

d 

LADD ADR LADD ADR LADD 

Release 

activity(ies)2; 

exposure 

calculation(s)

3 

mg/kg/day mg/kg/day mg/kg/day mg/kg/day μg/l # Days mg/kg/day mg/kg/day mg/kg/day mg/kg/day mg/kg/day 

MFG/PROC: 

Max ADR 

--- --- --- --- --- --- --- --- --- 1.79E+01 ---

MFG/PROC: 

Max LADD 

--- --- --- --- --- --- --- --- --- --- 5.81E-02 

USE 1: max 

acute eco 

7.32E-03 --- 3.63E-03 --- 1.60E+02 --- --- --- --- --- ---

USE 1: 

PDM1 

--- --- --- --- 1.60E+02 21 --- --- --- --- ---

USE 1: Max 

LADD 

--- 8.50E-05 --- 4.81E-05 --- --- 2.05E-04 --- --- --- ---

USE 2: max 

acute eco 

2.67E-02 --- 1.32E-02 --- 5.85E+02 --- --- --- --- 4.41E-02 ---

USE 2: Max 

LADD 

--- 2.15E-05 --- 1.21E-05 --- --- 5.18E-05 --- --- --- 9.71E-04 

USE 3: max 

acute eco 

3.75E-02 --- 1.86E-02 --- 8.21E+02 --- --- --- --- --- ---

USE 3: 

PDM1 

--- --- --- --- 8.21E+02 83 --- --- --- --- ---

USE 3: Max 

LADD 

--- 4.35E-04 --- 2.46E-04 --- --- 1.05E-03 --- 6.14E-04 --- ---

USE 4: max 

acute eco 

3.62E-02 --- 1.79E-02 --- 7.92E+02 --- --- --- --- --- ---

USE 4: Max 

LADD 

--- 1.45E-05 --- 8.23E-06 --- --- 3.51E-05 --- --- --- ---

USE 5: max 

acute eco 

2.20E-01 --- 1.10E-01 --- 4.81E+03 --- --- 6.25E-02 --- --- ---

USE 5: Max 

LADD 

--- 1.18E-04 --- 6.66E-05 --- --- 2.84E-04 --- --- --- ---

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Remarks: 

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

Parameter Exp Based Persistent Exceedance Value 

(mg/kg/day) Yes NA 2.20E-01 

(mg/kg/day) Yes NA 1.10E-01 

(mg/kg/day) Yes NA 1.79E+01 

Groundwater Dose (mg/kg/day) No NA 

(kg/yr) Yes NA 6.78E+03 

(kg/yr) Yes NA 9.52E+04 

Consumer Use? No 

Fate test recommendations?: (default is NA)

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 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 Assessor:

ENVIRONMENTAL RELEASES 

 Scenario#:1 Number of Release Sites: 1. 

 Release Activity: MFG/PROC: Max ADR 

 Release Description: WATER LANDFILL 

Non-sludge/Sludge 

STACK FUGITIVE 

Total Releases: 

Release Days/yr: 

Per Site Release: 

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

Remarks: 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT) 

SCENARIO #: 1 RELEASE ACTIVITY:MFG/PROC: Max ADR 

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3 

EXPOSED POPULATION: Adult 

Number of Sites: 

Per Site Fugitive Release: 

Fugitive Release Days per Year: 

% Removal via Fugitive Release: 

Total Fugitive Release: 

Max Annual Average Air Concentration 

(Fugitive): 

Max 24 Hour Average Air 

Concentration(Fugitive): 

Per Site Stack Release: 

Stack Release Days per Year: 

% Removal via Stack Release: 

Total Stack Release: 

Max Annual Average Air Concentration (Stack): 

Max 24 Hour Average Air Concentration (Stack): 

ASSUMPTIONS 

Exposure Units 

Results 

(Stack) 

Results 

(Fugitive) ED 

(years) 

AT 

(years) 

BW 

(kg) 

Inh. Rate 

(m3/hr) 

Cancer 

LADDpot (mg/kg/day) N/A 1.57E-03 30.00 75.00 71.80 0.55 

LADCpot (mg/m3) N/A 8.56E-03 30.00 75.00 NA NA 

Acute 

ADRpot (mg/kg/day) N/A 17.91 NA 1 day 71.80 0.55 

Inhalation Comments: 

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 INITIAL REVIEW EXPOSURE REPORT 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT) 

SCENARIO #: 2 RELEASE ACTIVITY:MFG/PROC: Max LADD 

RELEASE DESCRIPTION: 

METHOD OF CALCULATION: Screen3 

EXPOSED POPULATION: Adult 

Number of Sites: 

Per Site Fugitive Release: 

Fugitive Release Days per Year: 

% Removal via Fugitive Release: 

Total Fugitive Release: 

Max Annual Average Air Concentration 

(Fugitive): 

Max 24 Hour Average Air 

Concentration(Fugitive): 

Per Site Stack Release: 

Stack Release Days per Year: 

% Removal via Stack Release: 

Total Stack Release: 

Max Annual Average Air Concentration (Stack): 

Max 24 Hour Average Air Concentration (Stack): 

ASSUMPTIONS 

Exposure Units 

Results 

(Stack) 

Results 

(Fugitive) ED 

(years) 

AT 

(years) 

BW 

(kg) 

Inh. Rate 

(m3/hr) 

Cancer 

LADDpot (mg/kg/day) N/A 5.81E-02 30.00 75.00 71.80 0.55 

LADCpot (mg/m3) N/A 0.32 30.00 75.00 NA NA 

Acute 

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

Inhalation Comments: 

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 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

ENVIRONMENTAL RELEASES 

 Scenario#:3 Number of Release Sites: 50. 

 Release Activity: USE 1: Max ADR 

 Release Description: WATER LANDFILL 

Non-sludge/Sludge 

STACK FUGITIVE 

Total Releases: 

 

 

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

Remarks: 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

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

SCENARIO #: 3 Number of Sites: 50 RELEASE ACTIVITY:USE 1: 

Max ADR 

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) 

 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 1.35 3.86 6.34 7.55 

ALL 10 11.11 1.94 1.06 0.96 15.30 87.63 160.38 177.08 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 7.52E-06 8.50E-05 mg/kg/day 4.26E-06 4.81E-05 mg/kg/day 

LADCpot 3.86E-04 4.36E-03 mg/L 5.09E-02 0.58 mg/kg 

Acute 

ADRpot 3.23E-04 7.32E-03 mg/kg/day 3.21E-04 3.63E-03 mg/kg/day 

SIC Code Comments: 

EPA SANITIZED Page 10 of 47
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 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 Assessor: Kwon/BC 

ENVIRONMENTAL RELEASES 

 Scenario#:4 Number of Release Sites: 50. 

 Release Activity: USE 1: PDM1 

 

 

 

 

 

Remarks: 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

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

SCENARIO #: 4 Number of Sites: 50 RELEASE ACTIVITY:USE 1: 

PDM1 

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

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

 

 

 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 1.35 3.86 6.34 7.55 

ALL 10 11.11 1.94 1.06 0.96 15.30 87.63 160.38 177.08 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 7.52E-06 8.50E-05 mg/kg/day 4.26E-06 4.81E-05 mg/kg/day 

LADCpot 3.86E-04 4.36E-03 mg/L 5.09E-02 0.58 mg/kg 

Acute 

ADRpot 3.23E-04 7.32E-03 mg/kg/day 3.21E-04 3.63E-03 mg/kg/day 

SIC Code Comments: 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

SCENARIO #: 4 RELEASE ACTIVITY: USE 1: PDM1 

SIC CODE DESCRIPTION: POTW's (All facilities) 

ASSOCIATED SIC CODES: 4952 

COC (g/L) 

Percent of 

Year COC 

Exceeded 

Number of 

Days COC 

Exceeded 

Release 

days/year 

Loading 

(kg/site/day) 

Waste Water 

Treatment (%) 

High/Avg 

Analysis 

170.00 6 21 90.00 High 

Note: Number of COC days exceeds 20.

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 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 Assessor: Kwon/BC 

ENVIRONMENTAL RELEASES 

 Scenario#:5 Number of Release Sites: 50. 

 Release Activity: USE 1: Max LADD 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

SCENARIO #: 5 Number of Sites: 50 RELEASE ACTIVITY:USE 1: 

Max LADD 

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

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

WWT PRETREATMENT POSTTREATMENT DWT 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 N/A N/A N/A N/A 

ALL 10 11.11 1.94 1.06 0.96 N/A N/A N/A N/A 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 7.52E-06 8.50E-05 mg/kg/day 4.26E-06 4.81E-05 mg/kg/day 

LADCpot 3.86E-04 4.36E-03 mg/L 5.09E-02 0.58 mg/kg 

Acute 

ADRpot N/A N/A mg/kg/day N/A N/A mg/kg/day 

SIC Code Comments: 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

SCENARIO #: 5 ACTIVITY: USE 1: 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 

 (%) 

 Moderate 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 

 

ASSUMPTIONS 

 Exposure Units Results ED 

(years) 

AT 

(years) 

BW 

(kg) 

IR 

 (L/day) 

Cancer 

LADDpot (mg/kg/day) 2.05E-04 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 1.05E-02 30.00 75.00 NA NA 

REMARKS: 

 

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 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 Assessor: Kwon/BC 

ENVIRONMENTAL RELEASES 

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INITIAL REVIEW EXPOSURE REPORT 

 

 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 4.94 14.08 23.13 27.52 

ALL 10 11.11 1.94 1.06 0.96 55.81 319.59 584.91 645.83 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 1.90E-06 2.15E-05 mg/kg/day 1.07E-06 1.21E-05 mg/kg/day 

LADCpot 9.74E-05 1.10E-03 mg/L 1.29E-02 0.15 mg/kg 

Acute 

ADRpot 1.18E-03 2.67E-02 mg/kg/day 1.17E-03 1.32E-02 mg/kg/day 

SIC Code Comments: 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT) 

 

ASSUMPTIONS 

Exposure Units 

Results 

(Stack) 

Results 

(Fugitive) ED 

(years) 

AT 

(years) 

BW 

(kg) 

Inh. Rate 

(m3/hr) 

Cancer 

LADDpot (mg/kg/day) N/A 9.71E-04 30.00 75.00 71.80 0.55 

LADCpot (mg/m3) N/A 5.28E-03 30.00 75.00 NA NA 

Acute 

ADRpot (mg/kg/day) N/A 4.41E-02 NA 1 day 71.80 0.55 

Inhalation Comments: 

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 INITIAL REVIEW EXPOSURE REPORT 

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INITIAL REVIEW EXPOSURE REPORT 

 

 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 N/A N/A N/A N/A 

ALL 10 11.11 1.94 1.06 0.96 N/A N/A N/A N/A 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 1.90E-06 2.15E-05 mg/kg/day 1.07E-06 1.21E-05 mg/kg/day 

LADCpot 9.74E-05 1.10E-03 mg/L 1.29E-02 0.15 mg/kg 

Acute 

ADRpot N/A N/A mg/kg/day N/A N/A mg/kg/day 

SIC Code Comments: 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

SCENARIO #: 7 ACTIVITY: USE 2: 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 

 (%) 

 Moderate 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 

 

ASSUMPTIONS 

 Exposure Units Results ED 

(years) 

AT 

(years) 

BW 

(kg) 

IR 

 (L/day) 

Cancer 

LADDpot (mg/kg/day) 5.18E-05 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 2.66E-03 30.00 75.00 NA NA 

REMARKS: 

 

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ASSUMPTIONS 

Exposure Units 

Results 

(Stack) 

Results 

(Fugitive) ED 

(years) 

AT 

(years) 

BW 

(kg) 

Inh. Rate 

(m3/hr) 

Cancer 

LADDpot (mg/kg/day) N/A 9.71E-04 30.00 75.00 71.80 0.55 

LADCpot (mg/m3) N/A 5.28E-03 30.00 75.00 NA NA 

Acute 

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

Inhalation Comments: 

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47 

 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

SCENARIO #: 8 Number of Sites: 10 RELEASE ACTIVITY:USE 3: 

Max ADR 

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

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

WWT 

 

 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 6.93 19.76 32.46 38.62 

ALL 10 11.11 1.94 1.06 0.96 78.31 448.45 820.75 906.25 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 3.85E-05 4.35E-04 mg/kg/day 2.18E-05 2.46E-04 mg/kg/day 

LADCpot 1.97E-03 2.23E-02 mg/L 0.26 2.95 mg/kg 

Acute 

ADRpot 1.65E-03 3.75E-02 mg/kg/day 1.64E-03 1.86E-02 mg/kg/day 

SIC Code Comments: 

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Remarks: 

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SCENARIO #: 9 Number of Sites: 10 RELEASE ACTIVITY:USE 3: 

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) 

 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 6.93 19.76 32.46 38.62 

ALL 10 11.11 1.94 1.06 0.96 78.31 448.45 820.75 906.25 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 3.85E-05 4.35E-04 mg/kg/day 2.18E-05 2.46E-04 mg/kg/day 

LADCpot 1.97E-03 2.23E-02 mg/L 0.26 2.95 mg/kg 

Acute 

ADRpot 1.65E-03 3.75E-02 mg/kg/day 1.64E-03 1.86E-02 mg/kg/day 

SIC Code Comments: 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

SCENARIO #: 9 RELEASE ACTIVITY: USE 3: PDM1 

COC (g/L) 

Percent of 

Year COC 

Exceeded 

Number of 

Days COC 

Exceeded 

Release 

days/year 

Loading 

(kg/site/day) 

Waste Water 

Treatment (%) 

High/Avg 

Analysis 

170.00 23 90.00 High 

Note: Number of COC days exceeds 20.

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 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 Assessor: Kwon/BC 

 

 Release Activity: USE 3: Max LADD 

 

 

 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

SCENARIO #: 10 Number of Sites: 10 RELEASE ACTIVITY:USE 3: 

Max LADD 

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

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

 

 

 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 N/A N/A N/A N/A 

ALL 10 11.11 1.94 1.06 0.96 N/A N/A N/A N/A 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 3.85E-05 4.35E-04 mg/kg/day 2.18E-05 2.46E-04 mg/kg/day 

LADCpot 1.97E-03 2.23E-02 mg/L 0.26 2.95 mg/kg 

Acute 

ADRpot N/A N/A mg/kg/day N/A N/A mg/kg/day 

SIC Code Comments: 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

SCENARIO #: 10 ACTIVITY: USE 3: 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 

 (%) 

 Moderate 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 

 

ASSUMPTIONS 

 Exposure Units Results ED 

(years) 

AT 

(years) 

BW 

(kg) 

IR 

 (L/day) 

Cancer 

LADDpot (mg/kg/day) 1.05E-03 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 5.38E-02 30.00 75.00 NA NA 

REMARKS: 

 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT) 

 

 

 

 

 

ASSUMPTIONS 

Exposure Units 

Results 

(Stack) 

Results 

(Fugitive) ED 

(years) 

AT 

(years) 

BW 

(kg) 

Inh. Rate 

(m3/hr) 

Cancer 

LADDpot (mg/kg/day) 6.14E-04 N/A 30.00 75.00 71.80 0.55 

LADCpot (mg/m3) 3.34E-03 N/A 30.00 75.00 NA NA 

Acute 

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

Inhalation Comments: 

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 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 Assessor:

 Scenario#:11 Number of Release Sites: 100. 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

SCENARIO #: 11 Number of Sites: 100 RELEASE ACTIVITY:USE 4: 

Max ADR 

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) 

 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 6.69 19.08 31.34 37.28 

ALL 10 11.11 1.94 1.06 0.96 75.61 432.99 792.45 875.00 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 1.29E-06 1.45E-05 mg/kg/day 7.28E-07 8.23E-06 mg/kg/day 

LADCpot 6.60E-05 7.46E-04 mg/L 8.71E-03 9.84E-02 mg/kg 

Acute 

ADRpot 1.59E-03 3.62E-02 mg/kg/day 1.59E-03 1.79E-02 mg/kg/day 

SIC Code Comments: 

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 INITIAL REVIEW EXPOSURE REPORT 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

SCENARIO #: 12 Number of Sites: 100 RELEASE ACTIVITY:USE 4: 

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) 

 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 N/A N/A N/A N/A 

ALL 10 11.11 1.94 1.06 0.96 N/A N/A N/A N/A 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 1.29E-06 1.45E-05 mg/kg/day 7.28E-07 8.23E-06 mg/kg/day 

LADCpot 6.60E-05 7.46E-04 mg/L 8.71E-03 9.84E-02 mg/kg 

Acute 

ADRpot N/A N/A mg/kg/day N/A N/A mg/kg/day 

SIC Code Comments: 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

SCENARIO #: 12 ACTIVITY: USE 4: 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 

 (%) 

 0.00/0.00 Moderate 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 

 

ASSUMPTIONS 

 Exposure Units Results ED 

(years) 

AT 

(years) 

BW 

(kg) 

IR 

 (L/day) 

Cancer 

LADDpot (mg/kg/day) 3.51E-05 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 1.80E-03 30.00 75.00 NA NA 

REMARKS: 

 

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 INITIAL REVIEW EXPOSURE REPORT 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

SCENARIO #: 13 Number of Sites: 25 RELEASE ACTIVITY:USE 5: 

Max ADR 

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) 

 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 40.62 115.86 190.30 226.36 

ALL 10 11.11 1.94 1.06 0.96 459.05 2628.87 4811.32 5312.50 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 1.04E-05 1.18E-04 mg/kg/day 5.89E-06 6.66E-05 mg/kg/day 

LADCpot 5.34E-04 6.04E-03 mg/L 7.05E-02 0.80 mg/kg 

Acute 

ADRpot 9.68E-03 0.22 mg/kg/day 9.63E-03 0.11 mg/kg/day 

SIC Code Comments: 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

INHALATION EXPOSURE ESTIMATES (POST-TREATMENT) 

 

 

 

 

 

 

 

ASSUMPTIONS 

Exposure Units 

Results 

(Stack) 

Results 

(Fugitive) ED 

(years) 

AT 

(years) 

BW 

(kg) 

Inh. Rate 

(m3/hr) 

Cancer 

LADDpot (mg/kg/day) 1.66E-04 N/A 30.00 75.00 71.80 0.55 

LADCpot (mg/m3) 9.04E-04 N/A 30.00 75.00 NA NA 

Acute 

ADRpot (mg/kg/day) 6.25E-02 N/A NA 1 day 71.80 0.55 

Inhalation Comments: 

EPA SANITIZED Page 43 of 47
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 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 Assessor: Kwon/BC 

 Scenario#:14 Number of Release Sites: 25. 

 

 

 

 

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INITIAL REVIEW EXPOSURE REPORT 

 Chemical ID: S-11-0001 

SCENARIO #: 14 Number of Sites: 25 RELEASE ACTIVITY:USE 5: 

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) 

0.00 132.00 

PLANT 

TYPE 

% ILE 

FACILITY 

STREAM FLOW (MLD) STREAM CONC. (g/l) 

Harmonic 

Mean 30Q5 7Q10 1Q10 

Harmonic 

Mean 30Q5 7Q10 1Q10 

ALL 50 125.56 44.02 26.80 22.53 N/A N/A N/A N/A 

ALL 10 11.11 1.94 1.06 0.96 N/A N/A N/A N/A 

Exposure Units 

Drinking Water Results Drinking 

Water Units Fish Ingestion Results 

Fish 

Ingestion 

Units 

50% 10% 50% 10% 

Cancer 

LADDpot 1.04E-05 1.18E-04 mg/kg/day 5.89E-06 6.66E-05 mg/kg/day 

LADCpot 5.34E-04 6.04E-03 mg/L 7.05E-02 0.80 mg/kg 

Acute 

ADRpot N/A N/A mg/kg/day N/A N/A mg/kg/day 

SIC Code Comments: 

EPA SANITIZED Page 46 of 47
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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: S-11-0001 

SCENARIO #: 14 ACTIVITY: USE 5: 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 

 (%) 

 Moderate 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 

 

ASSUMPTIONS 

 Exposure Units Results ED 

(years) 

AT 

(years) 

BW 

(kg) 

IR 

 (L/day) 

Cancer 

LADDpot (mg/kg/day) 2.84E-04 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 1.46E-02 30.00 75.00 NA NA 

REMARKS: 

 

EPA SANITIZED Page 47 of 47