3/20/13 page of 

POST FOCUS EXPOSURE REPORT 

 Chemical ID: P-12-0576 Reviewer: Wong/SS 

 

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 = 

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 m g/kg/day mg/kg/day 

 Max LADD --- --- --- --- --- --- 1.91E-03 --- --- --- --- 

 Max LADD --- --- --- --- --- --- 2.16E-03 --- --- --- --- 

 Max 

LADD* 

--- --- --- --- --- --- 4.07E-03 --- --- --- --- 

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 No 

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

Inhalation Dose (mg/kg/day) No No 

Groundwater Dose (mg/kg/day) Yes Yes 4.07E-03 

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

Total Release After Treatment (kg/yr) 

Consumer Use? No 

Fate test recommendations?: (default is NA)
3/20/13 page of 

 POST FOCUS EXPOSURE REPORT 

Chemical ID: P-12-0576 Assessor: Wong/SS 

ENVIRONMENTAL RELEASES 

 Scenario#:1 Number of Release Sites: 

 Release Activity: 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: 
3/20/13 page of 

POST FOCUS EXPOSURE REPORT 

Chemical ID: P-12-0576 

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES 

SCENARIO #: 1 ACTIVITY: 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) 1.91E-03 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 9.80E-02 30.00 75.00 NA NA 

REMARKS: 

 
3/20/13 page of 

 POST FOCUS EXPOSURE REPORT 

Chemical ID: P-12-0576 Assessor: Wong/SS 

ENVIRONMENTAL RELEASES 

 Scenario#:2 Number of Release Sites: 

 Release Activity: 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: 
3/20/13 page of 

POST FOCUS EXPOSURE REPORT 

Chemical ID: P-12-0576 

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES 

SCENARIO #: 2 ACTIVITY: 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) 2.16E-03 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 0.11 30.00 75.00 NA NA 

REMARKS: 

 
3/20/13 page of 

 POST FOCUS EXPOSURE REPORT 

Chemical ID: P-12-0576 Assessor: Wong/SS 

ENVIRONMENTAL RELEASES 

 Scenario#:3 Number of Release Sites: 

 Release Activity: : 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: 
3/20/13 page of 

POST FOCUS EXPOSURE REPORT 

Chemical ID: P-12-0576 

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES 

SCENARIO #: 3 ACTIVITY: 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) 4.07E-03 30.00 75.00 71.80 1.40 

LADCpot (mg/L) 0.21 30.00 75.00 NA NA 

REMARKS: