EPA SANITIZED Page 1 of 11
2/10/06 FINAL

INITIAL REVIEW EXPOSURE REPORT

Case Number: P060262c Assessor: Delpire

ENVIRONMENTAL RELEASES

Scenario#: 1 Number of Release Sites: 1. 

Release Activity: MFG

Release Description: WATER LANDFILL INCINER LAND/INCIN FUGITIVE

Total Releases: 290.00 0.00 290.00 0.00 0.00

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

Release Days/yr: 1. 0. 

Per Site Release: 290.00 0.00 290.00 0.00 0.00

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

Remarks: Release is to water or incineration. Incineration release is below assessment threshold.

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

Parameter Exp Based Persistent Exceedance value

Drinking (Surface) Water Dose (mg/kg/day) Yes N/A 0.12

Fish Ingestion Dose (mg/kg/day) Yes N/A 0.36

Inhalation Dose (mg/kg/day) No N/A 

Groundwater Dose (mg/kg/day) No N/A 

Surface Water Release after treatment (kg/yr) No N/A 

Total Release After Treatment (kg/yr) No N/A 

Consumer Exposure Dose? No 

FATE TESTING RECOMMENDATIONS: See P-06-0263C .

EPA SANITIZED Page 2 of 11
INITIAL REVIEW EXPOSURE REPORT ---

CASE NUMBER: P060262c

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 1a RELEASE ACTIVITY: MFG Note: This is an active site

FACILITY NAME: CORSICANA CITY OF (STP NO. 2)

FACILITY LOCATION: CORSICANATX75110

RECEIVING WATER NAME: CHAMBERS CR

REACH NUMBER: 12030109002 FACILITY ON REACH: No DISCHARGE TYPE: Direct

NPDES PERMIT #: TX0056731 DATA SOURCE: FacSrch EXPOSED POPULATION: Adult

WWT REMOVAL

(%)

COC

(μg/L)

RELEASE

DAYS

PRE-TREAT RELEASE

(kg/day)

POST-TREAT RELEASE

(kg/day)

BCF

(L/kg)

90. 40.00 1. 290. 29.00 679.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD) 98.46 19.48 11.52 9.61 NA

CONCENTRATION (:g/L) 294.52 1488.73 2516.71 3017.99 NA

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units

Drinking

Water Results

Drinking

Water Units

Fish Ingestion

Results

Fish Ingestion

Units

Cancer

LADDpot (mg/kg/day) 6.29E-06 mg/kg/day 1.83E-05 mg/kg/day

LADCpot (mg/L) 3.23E-04 mg/L 0.22 mg/kg

Chronic Non-Cancer

ADDpot (mg/kg/day) 1.57E-05 mg/kg/day 4.58E-05 mg/kg/day

ADCpot (mg/L) 8.07E-04 mg/L 0.55 mg/kg

Acute

ADRpot (mg/kg/day) 0.12 mg/kg/day 0.36 mg/kg/day

EPA SANITIZED Page 3 of 11
INITIAL REVIEW EXPOSURE REPORT

CASE NUMBER: P060262c

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 1a RELEASE ACTIVITY: MFG This is an active site

FACILITY NAME: CORSICANA CITY OF (STP NO. 2)

FACILITY LOCATION: CORSICANATX75110

RECEIVING STREAM NAME: CHAMBERS CR

REACH NUMBER: 12030109002 FACILITY ON REACH: No DISCHARGE TYPE: Direct

NPDES PERMIT #: TX0056731 DATA SOURCE: FacSrch STATION ID: N/A

PERIOD OF RECORD:N/A # OBSERVATIONS: N/A # STATIONS ON REACH: N/A

50%ILE FLOW: 680.73 10%ILE FLOW: 11.52 EFFLUENT FLOW:11.52

RESULTS

COC (:g/L) % yr exceeded Days/yr exceeded Release days/year Loading

(kg/site/day)

Waste Water 

Treatment (%)

40.00 0.20 1 1 290.00 90.00

EPA SANITIZED Page 4 of 11
INITIAL REVIEW EXPOSURE REPORT ---

CASE NUMBER: P060262c

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 1b RELEASE ACTIVITY: MFG Note: This is an active site

FACILITY NAME: GCWDA (WASHBURN TUNNEL FACILIT

FACILITY LOCATION: PASADENATX77506

RECEIVING WATER NAME: BUFFALO BAYOU

REACH NUMBER: 12040104017 FACILITY ON REACH: Yes DISCHARGE TYPE: Direct

NPDES PERMIT #: TX0052591 DATA SOURCE: FacSrch EXPOSED POPULATION: Adult

WWT REMOVAL

(%)

COC

(μg/L)

RELEASE

DAYS

PRE-TREAT RELEASE

(kg/day)

POST-TREAT RELEASE

(kg/day)

BCF

(L/kg)

90. 10.00 1. 290. 29.00 679.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD) 755.50 272.21 176.68 144.55 NA

CONCENTRATION (:g/L) 38.39 106.54 164.14 200.63 NA

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units

Drinking

Water Results

Drinking

Water Units

Fish Ingestion

Results

Fish Ingestion

Units

Cancer

LADDpot (mg/kg/day) 8.20E-07 mg/kg/day 2.39E-06 mg/kg/day

LADCpot (mg/L) 4.21E-05 mg/L 2.86E-02 mg/kg

Chronic Non-Cancer

ADDpot (mg/kg/day) 2.05E-06 mg/kg/day 5.97E-06 mg/kg/day

ADCpot (mg/L) 1.05E-04 mg/L 7.14E-02 mg/kg

Acute

ADRpot (mg/kg/day) 8.90E-03 mg/kg/day 4.68E-02 mg/kg/day

Second run for P-06-0262 with COC = 10 ppb and release from Intergulf/Gulf Coast Waste Disposal, Pasadena, TX

(NPDES# TX0052591). Assumes that Buffalo Bayou is nearshore salt/marine water (worst case). Buffalo Bayou flows into

Houston Ship Channel, which flows into Galveston Bay.

EPA SANITIZED Page 5 of 11
INITIAL REVIEW EXPOSURE REPORT

CASE NUMBER: P060262c

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 1b RELEASE ACTIVITY: MFG This is an active site

FACILITY NAME: GCWDA (WASHBURN TUNNEL FACILIT

FACILITY LOCATION: PASADENATX77506

RECEIVING STREAM NAME: BUFFALO BAYOU

REACH NUMBER: 12040104017 FACILITY ON REACH: Yes DISCHARGE TYPE: Direct

NPDES PERMIT #: TX0052591 DATA SOURCE: FacSrch STATION ID: N/A

PERIOD OF RECORD:N/A # OBSERVATIONS: N/A # STATIONS ON REACH: N/A

50%ILE FLOW: 2090.59 10%ILE FLOW: 176.68 EFFLUENT FLOW:134.08

RESULTS

COC (:g/L) % yr exceeded Days/yr exceeded Release days/year Loading

(kg/site/day)

Waste Water 

Treatment (%)

10.00 0.21 1 1 290.00 90.00

Second run for P-06-0262 with COC = 10 ppb and release from Intergulf/Gulf Coast Waste Disposal, Pasadena, TX

(NPDES# TX0052591). Assumes that Buffalo Bayou is nearshore salt/marine water (worst case). Buffalo Bayou flows into

Houston Ship Channel, which flows into Galveston Bay.

EPA SANITIZED Page 6 of 11
INITIAL REVIEW EXPOSURE REPORT

Case Number: P060262c Assessor: Delpire

ENVIRONMENTAL RELEASES

Scenario#: 2 Number of Release Sites: 1. 

Release Activity: USE

Release Description: WATER LANDFILL INCINER LAND/INCIN FUGITIVE

Total Releases: 404.20 0.00 400.00 0.00 0.00

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

Release Days/yr: 94. 0. 

Per Site Release: 4.30 0.00 400.00 0.00 0.00

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

Remarks: Release is to water or incineration. Incineration release is below assessment threshold.

 

EPA SANITIZED Page 7 of 11
INITIAL REVIEW EXPOSURE REPORT ---

CASE NUMBER: P060262c

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 2a RELEASE ACTIVITY: USE Note: This is an active site

FACILITY NAME: CORSICANA CITY OF (STP NO. 2)

FACILITY LOCATION: CORSICANATX75110

RECEIVING WATER NAME: CHAMBERS CR

REACH NUMBER: 12030109002 FACILITY ON REACH: No DISCHARGE TYPE: Direct

NPDES PERMIT #: TX0056731 DATA SOURCE: FacSrch EXPOSED POPULATION: Adult

WWT REMOVAL

(%)

COC

(μg/L)

RELEASE

DAYS

PRE-TREAT RELEASE

(kg/day)

POST-TREAT RELEASE

(kg/day)

BCF

(L/kg)

90. 40.00 94. 4.3 0.43 679.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD) 98.46 19.48 11.52 9.61 NA

CONCENTRATION (:g/L) 4.37 22.07 37.32 44.75 NA

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units

Drinking

Water Results

Drinking

Water Units

Fish Ingestion

Results

Fish Ingestion

Units

Cancer

LADDpot (mg/kg/day) 8.77E-06 mg/kg/day 2.55E-05 mg/kg/day

LADCpot (mg/L) 4.50E-04 mg/L 0.31 mg/kg

Chronic Non-Cancer

ADDpot (mg/kg/day) 2.19E-05 mg/kg/day 6.38E-05 mg/kg/day

ADCpot (mg/L) 1.12E-03 mg/L 0.76 mg/kg

Acute

ADRpot (mg/kg/day) 1.84E-03 mg/kg/day 5.33E-03 mg/kg/day

EPA SANITIZED Page 8 of 11
INITIAL REVIEW EXPOSURE REPORT

CASE NUMBER: P060262c

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 2a RELEASE ACTIVITY: USE This is an active site

FACILITY NAME: CORSICANA CITY OF (STP NO. 2)

FACILITY LOCATION: CORSICANATX75110

RECEIVING STREAM NAME: CHAMBERS CR

REACH NUMBER: 12030109002 FACILITY ON REACH: No DISCHARGE TYPE: Direct

NPDES PERMIT #: TX0056731 DATA SOURCE: FacSrch STATION ID: N/A

PERIOD OF RECORD:N/A # OBSERVATIONS: N/A # STATIONS ON REACH: N/A

50%ILE FLOW: 680.73 10%ILE FLOW: 11.52 EFFLUENT FLOW:11.52

RESULTS

COC (:g/L) % yr exceeded Days/yr exceeded Release days/year Loading

(kg/site/day)

Waste Water 

Treatment (%)

40.00 0.22 1 94 4.30 90.00

EPA SANITIZED Page 9 of 11
INITIAL REVIEW EXPOSURE REPORT ---

CASE NUMBER: P060262c

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 2b RELEASE ACTIVITY: USE Note: This is an active site

FACILITY NAME: GCWDA (WASHBURN TUNNEL FACILIT

FACILITY LOCATION: PASADENATX77506

RECEIVING WATER NAME: BUFFALO BAYOU

REACH NUMBER: 12040104017 FACILITY ON REACH: Yes DISCHARGE TYPE: Direct

NPDES PERMIT #: TX0052591 DATA SOURCE: FacSrch EXPOSED POPULATION: Adult

WWT REMOVAL

(%)

COC

(μg/L)

RELEASE

DAYS

PRE-TREAT RELEASE

(kg/day)

POST-TREAT RELEASE

(kg/day)

BCF

(L/kg)

90. 10.00 94. 4.3 0.43 679.00

AQUATIC EXPOSURE ESTIMATES - SURFACE WATER

FLOW DESCRIPTOR Harmonic Mean 30Q5 7Q10 1Q10 PLANT

FLOW (MLD) 755.50 272.21 176.68 144.55 NA

CONCENTRATION (:g/L) 0.57 1.58 2.43 2.97 NA

DRINKING WATER INGESTION AND FISH INGESTION EXPOSURE ESTIMATES

Exposure Units

Drinking

Water Results

Drinking

Water Units

Fish Ingestion

Results

Fish Ingestion

Units

Cancer

LADDpot (mg/kg/day) 1.14E-06 mg/kg/day 3.33E-06 mg/kg/day

LADCpot (mg/L) 5.86E-05 mg/L 3.98E-02 mg/kg

Chronic Non-Cancer

ADDpot (mg/kg/day) 2.86E-06 mg/kg/day 8.32E-06 mg/kg/day

ADCpot (mg/L) 1.47E-04 mg/L 9.95E-02 mg/kg

Acute

ADRpot (mg/kg/day) 1.32E-04 mg/kg/day 6.94E-04 mg/kg/day

Second run for P-06-0262 with COC = 10 ppb and release from Intergulf/Gulf Coast Waste Disposal, Pasadena, TX

(NPDES# TX0052591). Assumes that Buffalo Bayou is nearshore salt/marine water (worst case). Buffalo Bayou flows into

Houston Ship Channel, which flows into Galveston Bay. 

EPA SANITIZED Page 10 of 11
INITIAL REVIEW EXPOSURE REPORT

CASE NUMBER: P060262c

SITE-SPECIFIC HUMAN AND AQUATIC EXPOSURES TO SURFACE WATER RELEASES

SCENARIO #: 2b RELEASE ACTIVITY: USE This is an active site

FACILITY NAME: GCWDA (WASHBURN TUNNEL FACILIT

FACILITY LOCATION: PASADENATX77506

RECEIVING STREAM NAME: BUFFALO BAYOU

REACH NUMBER: 12040104017 FACILITY ON REACH: Yes DISCHARGE TYPE: Direct

NPDES PERMIT #: TX0052591 DATA SOURCE: FacSrch STATION ID: N/A

PERIOD OF RECORD:N/A # OBSERVATIONS: N/A # STATIONS ON REACH: N/A

50%ILE FLOW: 2090.59 10%ILE FLOW: 176.68 EFFLUENT FLOW:134.08

RESULTS

COC (:g/L) % yr exceeded Days/yr exceeded Release days/year Loading

(kg/site/day)

Waste Water 

Treatment (%)

10.00 5.26E-02 0 94 4.30 90.00

Second run for P-06-0262 with COC = 10 ppb and release from Intergulf/Gulf Coast Waste Disposal, Pasadena, TX

(NPDES# TX0052591). Assumes that Buffalo Bayou is nearshore salt/marine water (worst case). Buffalo Bayou flows into

Houston Ship Channel, which flows into Galveston Bay.

EPA SANITIZED Page 11 of 11