June 1, 2004 REVISED EXPOSURE REPORT This report revised based on revised engineering report of 5/28/2004 Case Number: P040319 Assessor: Flessner ENVIRONMENTAL RELEASES Scenario#: 1 Number of Release Sites: 1. Release Activity: PROCESSING 1 Release Description: WATER LANDFILL INCINER LAND/INCIN FUGITIVE Total Releases: 0.00 0.00 4.40E+04 0.00 405.00 (kg/yr) (kg/yr) (kg/yr) (kg/yr) (kg/yr) Release Days/yr: 0. 15. Per Site Release: 0.00 0.00 4.40E+04 0.00 27.00 (kg/day) (kg/yr) (kg/yr) (kg/yr) (kg/day) Remarks: Underground injection of 12 kg/yr is considered unavailable to the environment; incineration release after treatment (99.9% DRE) is less than threshold for further assessment.

Consumer use expected? No, consumer use is not expected.

Parameter Exp Based Persistent Exceedance value Drinking (Surface) Water Dose (mg/kg/day) No N/A Fish Ingestion Dose (mg/kg/day) No N/A Inhalation Dose (mg/kg/day) Yes N/A 4.91E-03 Groundwater Dose (mg/kg/day) Yes N/A 3.29E-02 Surface Water Release after treatment (kg/yr) No N/A Total Release After Treatment (kg/yr) Yes N/A 7.67E+06 Consumer Exposure Dose? NoREVISED EXPOSURE REPORT CASE NUMBER:P040319

INHALATION EXPOSURE ESTIMATES FROM FUGITIVE RELEASES

SCENARIO #:1 RELEASE ACTIVITY: PROCESSING 1 RELEASE DESCRIPTION: METHOD OF CALCULATION:Turner EXPOSED POPULATION:Adult

NUMBER OF SITES % TREATMENT TYPE OF REMOVAL PRE-TREAT RELEASE (kg/yr) POST-TREAT RELEASE (kg/yr) 1. 0.00 None 405.00 405.00

Exposure Units Results ASSUMPTIONS ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr) Cancer LADD pot(mg/kg/day) 1.49E-04 30.00 75.00 71.80 0.55 LADC pot(mg/m 3 ) 8.10E-04 30.00 75.00 NA NA Chronic Non-Cancer ADD pot(mg/kg/day) 3.72E-04 30.00 30.00 71.80 0.55 ADC pot(mg/m 3 ) 2.03E-03 30.00 30.00 NA NAREVISED EXPOSURE REPORT

Case Number: P040319 Assessor: ENVIRONMENTAL RELEASES Scenario#: 2 Number of Release Sites: 1. Release Activity: PROCESSING 2 Release Description: WATER LANDFILL INCINER LAND/INCIN FUGITIVE Total Releases: 0.00 0.00 1.40E+04 0.00 200.00 (kg/yr) (kg/yr) (kg/yr) (kg/yr) (kg/yr) Release Days/yr: 0. 200. Per Site Release: 0.00 0.00 1.40E+04 0.00 1.00 (kg/day) (kg/yr) (kg/yr) (kg/yr) (kg/day) Remarks: Underground injection of 12 kg/yr is considered unavailable to the environment; incineration release after treatment (99.9% DRE) is less than threshold for further assessment.REVISED EXPOSURE REPORT CASE NUMBER:P040319

INHALATION EXPOSURE ESTIMATES FROM FUGITIVE RELEASES

SCENARIO #:2 RELEASE ACTIVITY: PROCESSING 2 RELEASE DESCRIPTION: METHOD OF CALCULATION:Turner EXPOSED POPULATION:Adult

NUMBER OF SITES % TREATMENT TYPE OF REMOVAL PRE-TREAT RELEASE (kg/yr) POST-TREAT RELEASE (kg/yr) 1. 0.00 None 200.00 200.00

Exposure Units Results ASSUMPTIONS ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr) Cancer LADD pot(mg/kg/day) 7.35E-05 30.00 75.00 71.80 0.55 LADC pot(mg/m 3 ) 4.00E-04 30.00 75.00 NA NA Chronic Non-Cancer ADD pot(mg/kg/day) 1.84E-04 30.00 30.00 71.80 0.55 ADC pot(mg/m 3 ) 1.00E-03 30.00 30.00 NA NAREVISED EXPOSURE REPORT

Case Number: P040319 Assessor: ENVIRONMENTAL RELEASES Scenario#: 3 Number of Release Sites: 8. Release Activity: PROCESSING 3 Release Description: WATER LANDFILL INCINER LAND/INCIN FUGITIVE Total Releases: 0.00 0.00 1.80E+05 0.00 244.40 (kg/yr) (kg/yr) (kg/yr) (kg/yr) (kg/yr) Release Days/yr: 0. 235. Per Site Release: 0.00 0.00 2.25E+04 0.00 0.13 (kg/day) (kg/yr) (kg/yr) (kg/yr) (kg/day) Remarks: Incineration releases less than threshold amount per site for further assessment after 99.9% DRE.REVISED EXPOSURE REPORT CASE NUMBER:P040319

INHALATION EXPOSURE ESTIMATES FROM FUGITIVE RELEASES

SCENARIO #:3 RELEASE ACTIVITY: PROCESSING 3 RELEASE DESCRIPTION: METHOD OF CALCULATION:Turner EXPOSED POPULATION:Adult

NUMBER OF SITES % TREATMENT TYPE OF REMOVAL PRE-TREAT RELEASE (kg/yr) POST-TREAT RELEASE (kg/yr) 8. 0.00 None 244.40 244.40

Exposure Units Results ASSUMPTIONS ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr) Cancer LADD pot(mg/kg/day) 1.12E-05 30.00 75.00 71.80 0.55 LADC pot(mg/m 3 ) 6.11E-05 30.00 75.00 NA NA Chronic Non-Cancer ADD pot(mg/kg/day) 2.81E-05 30.00 30.00 71.80 0.55 ADC pot(mg/m 3 ) 1.53E-04 30.00 30.00 NA NAREVISED EXPOSURE REPORT

Case Number: P040319 Assessor: ENVIRONMENTAL RELEASES Scenario#: 4 Number of Release Sites: 6458. Release Activity: USE 1 Release Description: WATER LANDFILL INCINER LAND/INCIN FUGITIVE Total Releases: 0.00 2.25E+05 2.25E+05 0.00 4.20E+06 (kg/yr) (kg/yr) (kg/yr) (kg/yr) (kg/yr) Release Days/yr: 0. 250. Per Site Release: 0.00 34.84 34.84 0.00 2.60 (kg/day) (kg/yr) (kg/yr) (kg/yr) (kg/day) Remarks: Incineration release less than threshold amount per site for further assessment after 99.9% DRE. Release to incineration or landfill.REVISED EXPOSURE REPORT CASE NUMBER:P040319

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES SCENARIO #:4 ACTIVITY:USE 1 RELEASE DESCRIPTION: EXPOSED POPULATION:Adult

NUMBER OF SITES LANDFILL RELEASE (kg/yr) LANDFILLED SLUDGE (kg/yr) MIGRATION FACTOR 1 DRINKING WATER TREATMENT (%) 6458. 2.25E+05 0.00 6.00E-05(Moderate) 0.00

Exposure Units Results ASSUMPTIONS ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot(mg/kg/day) 1.63E-05 30.00 75.00 71.80 1.40 LADC pot(mg/L) 8.36E-04 30.00 75.00 NA NA Chronic Non-Cancer ADD pot(mg/kg/day) 4.08E-05 30.00 30.00 71.80 1.40 ADC pot(mg/L) 2.09E-03 30.00 30.00 NA NAREVISED EXPOSURE REPORT CASE NUMBER:P040319

INHALATION EXPOSURE ESTIMATES FROM FUGITIVE RELEASES

SCENARIO #:4 RELEASE ACTIVITY:USE 1 RELEASE DESCRIPTION: METHOD OF CALCULATION:Turner EXPOSED POPULATION:Adult

NUMBER OF SITES % TREATMENT TYPE OF REMOVAL PRE-TREAT RELEASE (kg/yr) POST-TREAT RELEASE (kg/yr) 6458. 0.00 None 4.20E+06 4.20E+06

Exposure Units Results ASSUMPTIONS ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr) Cancer LADD pot(mg/kg/day) 2.39E-04 30.00 75.00 71.80 0.55 LADC pot(mg/m 3 ) 1.30E-03 30.00 75.00 NA NA Chronic Non-Cancer ADD pot(mg/kg/day) 5.97E-04 30.00 30.00 71.80 0.55 ADC pot(mg/m 3 ) 3.25E-03 30.00 30.00 NA NAREVISED EXPOSURE REPORT

Case Number: P040319 Assessor: ENVIRONMENTAL RELEASES Scenario#: 5 Number of Release Sites: 200. Release Activity: USE 2 Release Description: WATER LANDFILL INCINER LAND/INCIN FUGITIVE Total Releases: 0.00 2.90E+06 2.90E+06 0.00 6.07E+04 (kg/yr) (kg/yr) (kg/yr) (kg/yr) (kg/yr) Release Days/yr: 0. 345. Per Site Release: 0.00 1.45E+04 1.45E+04 0.00 0.88 (kg/day) (kg/yr) (kg/yr) (kg/yr) (kg/day) Remarks: Releases to incineration or landfill. In cineration release less than threshold amount for further assessment after 99.9% DRE.REVISED EXPOSURE REPORT CASE NUMBER:P040319

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES SCENARIO #:5 ACTIVITY:USE 2 RELEASE DESCRIPTION: EXPOSED POPULATION:Adult

NUMBER OF SITES LANDFILL RELEASE (kg/yr) LANDFILLED SLUDGE (kg/yr) MIGRATION FACTOR 1 DRINKING WATER TREATMENT (%) 200. 2.90E+06 0.00 6.00E-05(Moderate) 0.00

Exposure Units Results ASSUMPTIONS ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot(mg/kg/day) 6.79E-03 30.00 75.00 71.80 1.40 LADC pot(mg/L) 0.35 30.00 75.00 NA NA Chronic Non-Cancer ADD pot(mg/kg/day) 1.70E-02 30.00 30.00 71.80 1.40 ADC pot(mg/L) 0.87 30.00 30.00 NA NAREVISED EXPOSURE REPORT CASE NUMBER:P040319

INHALATION EXPOSURE ESTIMATES FROM FUGITIVE RELEASES

SCENARIO #:5 RELEASE ACTIVITY:USE 2 RELEASE DESCRIPTION: METHOD OF CALCULATION:Turner EXPOSED POPULATION:Adult

NUMBER OF SITES % TREATMENT TYPE OF REMOVAL PRE-TREAT RELEASE (kg/yr) POST-TREAT RELEASE (kg/yr) 200. 0.00 None 6.07E+04 6.07E+04

Exposure Units Results ASSUMPTIONS ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr) Cancer LADD pot(mg/kg/day) 1.12E-04 30.00 75.00 71.80 0.55 LADC pot(mg/m 3 ) 6.07E-04 30.00 75.00 NA NA Chronic Non-Cancer ADD pot(mg/kg/day) 2.79E-04 30.00 30.00 71.80 0.55 ADC pot(mg/m 3 ) 1.52E-03 30.00 30.00 NA NAREVISED EXPOSURE REPORT

Case Number: P040319 Assessor: ENVIRONMENTAL RELEASES Scenario#: 6 Number of Release Sites: 100. Release Activity: USE 3 Release Description: WATER LANDFILL INCINER LAND/INCIN FUGITIVE Total Releases: 0.00 0.00 3.00E+06 0.00 0.00 (kg/yr) (kg/yr) (kg/yr) (kg/yr) (kg/yr) Release Days/yr: 0. 0. Per Site Release: 0.00 0.00 3.00E+04 0.00 0.00 (kg/day) (kg/yr) (kg/yr) (kg/yr) (kg/day) Remarks: Incineration release after 99.9% DRE is less than threshold amount per site for further assessment.REVISED EXPOSURE REPORT

Case Number: P040319 Assessor: ENVIRONMENTAL RELEASES Scenario#: 7 Number of Release Sites: 8. Release Activity: USE 4a Release Description: WATER LANDFILL INCINER LAND/INCIN FUGITIVE Total Releases: 0.00 2.25E+05 2.25E+05 0.00 0.00 (kg/yr) (kg/yr) (kg/yr) (kg/yr) (kg/yr) Release Days/yr: 0. 0. Per Site Release: 0.00 2.81E+04 2.81E+04 0.00 0.00 (kg/day) (kg/yr) (kg/yr) (kg/yr) (kg/day) Remarks: Incineration or landfill release from equipment cleaning and container residue; if incineration, release is below threshol d for further assessment after 99.9% DRE.REVISED EXPOSURE REPORT CASE NUMBER:P040319

DRINKING WATER EXPOSURE ESTIMATES FROM LANDFILL RELEASES SCENARIO #:7 ACTIVITY:USE 4a RELEASE DESCRIPTION: EXPOSED POPULATION:Adult

NUMBER OF SITES LANDFILL RELEASE (kg/yr) LANDFILLED SLUDGE (kg/yr) MIGRATION FACTOR 1 DRINKING WATER TREATMENT (%) 8. 2.25E+05 0.00 6.00E-05(Moderate) 0.00

Exposure Units Results ASSUMPTIONS ED (years) AT (years) BW (kg) IR (L/day) Cancer LADD pot(mg/kg/day) 1.32E-02 30.00 75.00 71.80 1.40 LADC pot(mg/L) 0.68 30.00 75.00 NA NA Chronic Non-Cancer ADD pot(mg/kg/day) 3.29E-02 30.00 30.00 71.80 1.40 ADC pot(mg/L) 1.69 30.00 30.00 NA NAREVISED EXPOSURE REPORT

Case Number: P040319 Assessor: ENVIRONMENTAL RELEASES Scenario#: 8 Number of Release Sites: 100. Release Activity: USE 4b Release Description: WATER LANDFILL INCINER LAND/INCIN FUGITIVE Total Releases: 0.00 0.00 0.00 0.00 5.34E+05 (kg/yr) (kg/yr) (kg/yr) (kg/yr) (kg/yr) Release Days/yr: 0. 2. Per Site Release: 0.00 0.00 0.00 0.00 2670.00 (kg/day) (kg/yr) (kg/yr) (kg/yr) (kg/day) Remarks: Release from sites where painting takes place.REVISED EXPOSURE REPORT CASE NUMBER:P040319

INHALATION EXPOSURE ESTIMATES FROM FUGITIVE RELEASES

SCENARIO #:8 RELEASE ACTIVITY:USE 4b RELEASE DESCRIPTION: METHOD OF CALCULATION:Turner EXPOSED POPULATION:Adult

NUMBER OF SITES % TREATMENT TYPE OF REMOVAL PRE-TREAT RELEASE (kg/yr) POST-TREAT RELEASE (kg/yr) 100. 0.00 None 5.34E+05 5.34E+05

Exposure Units Results ASSUMPTIONS ED (years) AT (years) BW (kg) Inh. Rate (m 3 /hr) Cancer LADD pot(mg/kg/day) 1.96E-03 30.00 75.00 71.80 0.55 LADC pot(mg/m 3 ) 1.07E-02 30.00 75.00 NA NA Chronic Non-Cancer ADD pot(mg/kg/day) 4.91E-03 30.00 30.00 71.80 0.55 ADC pot(mg/m 3 ) 2.67E-02 30.00 30.00 NA NA