2/13/13 Page of 

INITIAL REVIEW EXPOSURE REPORT (IRExR) 

 Chemical ID: P-13-0239 Reviewer: Cinalli/AG 

 

 

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

Exposure 

Scenario1 

 Water Landfill Stack Air Fugitive Air 

Drinking Water Fish Ingestion 

ADR LADD ADR LADD 7Q104

CC = 

1 

PDM 

Days 

Exceede

d 

LADD ADR LADD ADR LADD 

Release 

activity(ies)2

; exposure 

calculation(s)

3 

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

PROC: Max 

LADD 

--- --- --- --- --- --- 3.55E-04 --- --- --- --- 

USE: Max 

LADD 

--- --- --- --- --- --- 3.44E-05 --- --- --- --- 

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

2 Release activities are from engineering report's Manufacturing (Mfg), Processing (Proc) and Use release 

activity labels. Multiple release activities are combined in one exposure scenario if their releases occur at 

same location. 

3 Exposure calculations are Acute Dose Rate (ADR), Lifetime Average Daily Dose (LADD), and 

Probabilistic Dilution Model (PDM). There may be one, two, or all three exposure calculations per exposure 

scenario. CC is the aquatic concentration of concern. 

4 This column displays concentration values for the 7Q10 streamflow, which is defined as the average daily 

streamflow of the seven consecutive days of lowest flow within a ten year period. 

Remarks: 

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

Parameter Exp Based Persistent Exceedance Value 

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

Fish Ingestion Dose (mg/kg/day) No NA 

Inhalation Dose (mg/kg/day) No NA 

Groundwater Dose (mg/kg/day) No NA 

Surface Water Release After Treatment (kg/yr) No NA 

Total Release After Treatment (kg/yr) 

Consumer Use? No 

Fate test recommendations?: (default is NA)

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 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: P-13-0239 Assessor: Cinalli/AG 

ENVIRONMENTAL RELEASES 

 Scenario#:1 Number of Release Sites: 

 Release Activity: PROC: Max LADD 

 Release Description: WATER LANDFILL 

Non-sludge/Sludge 

STACK FUGITIVE 

Total Releases: 

 (k g/yr) (kg/yr) (kg/yr) (kg/yr) 

 

 Non-sludge/Sludge 

Release Days/yr: 

Per Site Release: 

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

Remarks: 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: P-13-0239 

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES 

SCENARIO #: 1 ACTIVITY: PROC: 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 

 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)

 Negl igible 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) 3.55E-04 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 1.82E-02 30.00 75.00 NA NA 

REMARKS: 

 

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2/13/13 Page of 

 INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: P-13-0239 Assessor: Cinalli/AG 

ENVIRONMENTAL RELEASES 

 Scenario#:2 Number of Release Sites: 

 Release Activity: USE: Max LADD 

 Release Description: WATER LANDFILL 

Non-sludge/Sludge 

STACK FUGITIVE 

Total Releases: 

 (k g/yr) (kg/yr) (kg/yr) (kg/yr) 

 

 Non-sludge/Sludge 

Release Days/yr: 

Per Site Release: 

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

Remarks: 

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INITIAL REVIEW EXPOSURE REPORT 

Chemical ID: P-13-0239 

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES 

SCENARIO #: 2 ACTIVITY: USE: 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 

 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)

 Negl igible 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) 3.44E-05 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 1.76E-03 30.00 75.00 NA NA 

REMARKS: 

 

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