PUBLIC HEALTH ASSESSMENT
CASTLE AIR FORCE BASE
ATWATER, MERCED COUNTY, CALIFORNIA
EPA FACILITY ID: CA3570024551 
March 29, 1999
Prepared by:
Federal Facilities Assessment Branch
Division of Health Assessment and Consultation
Agency for Toxic Substances and Disease Registry
TABLE OF CONTENTS
EVALUATION OF ENVIRONMENTAL CONTAMINATION AND POTENTIAL EXPOSURE PATHWAYS
Table 1. Summary of Exposure Pathways at Castle Air Force Base
Figure 1. Area Map, Castle AFB, California
Figure 2. Castle AFB, California
Figure 3. ATSDR's Exposure Evaluation Process
Figure 4. Locations of Suspected Groundwater Plumes, Castle AFB, California
Figure 5. Locations of the RI/FS Sites, Castle AFB, California
Figure 6. Locations of Remediated Groundwater Plumes and SCOU Sites, Castle AFB, California
|
AFB |
Air Force Base |
| ATSDR | Agency for Toxic Substances and Disease Registry |
| BEPH | bis(2-ethylhexyl)phthalate |
| bgs | below ground surface |
| Bldg. | building |
| BTEX | benzene, toluene, ethylbenzene, and xylenes (aromatic VOCs) |
| CADHS | California Department of Health Services |
| CAFB | Castle Air Force Base |
| CERCLA | Comprehensive Environmental Response, Compensation, and Liability Act of (also known as Superfund) |
| CFC | chloroflurohydrocarbon |
|
CFC12 |
dichlorodifluoromethane |
| cis-1,2-DCE | cis-1,2-dichloroethylene |
| CPF | cancer potency factor |
| CREG | ATSDR's cancer risk evaluation guide |
| CVLF | Castle Vista Land Fill |
| CVR | Central Valley Region |
| DA | discharge area |
| DP | disposal pit |
| EPA | U.S. Environmental Protection Agency |
| EPAIII | Environmental Protection Agency, Region III |
|
ETC |
Earth Technology Corporation |
| F | aircraft maintenance site |
| FEIS | Final Environmental Impact Statement: Disposal and Reuse of Castle AFB |
| FFA | Federal Facility Agreement |
| FS | feasibility study |
| FSp | fuel spill |
| FTA | fire training area |
| gmp | gallons per minute |
| H | gasoline station |
| HSZ | hydrostratigraphic zone |
|
HWS |
hazardous waste storage area |
| IRP | Installation Restoration Program |
| IWL | industrial waste line |
| JP-4 | jet fuel |
| kg | kilogram |
| LF | landfill |
| LOAEL | lowest observed adverse effect level |
| LOX | liquid oxygen |
| MCL | EPA's maximum contaminant level |
| mg/kg/day | milligrams per kilogram per day |
|
MRL |
ATSDR's minimal risk level |
| NFA | no further action |
| NPL | National Priorities List |
| OU | operable unit |
| PAH | polycyclic aromatic hydrocarbons |
| PA/SI | preliminary assessment/site inspection |
| PCB | polychlorinated biphenyls |
| PCE | tetrachloroethylene |
| PFFA | POL Fuel Farm Area |
| PHAP | Public Health Action Plan |
|
POL |
petroleum, oil, and lubricants |
| ppb | parts per billion |
| ppm | parts per million |
| PW | production well |
| RAB | Restoration Advisory Board |
| RCRA | Resource Conservation and Recovery Act |
| RfD | EPA's reference dose |
| RI | remedial investigation |
| RD/RA | remedial design and remedial action |
| RWQCB | California Regional Water Quality Control Board |
|
SA |
storage area |
| SCOU | Source Control Operable Unit |
| SDS | storm drainage system |
| SS | sanitary sewer line |
| ST | stain |
| SVE | soil vapor extraction |
| SVOC | semi-volatile organic compound |
| SWMU | Solid Waste Management Unit |
| TBV | threshold background level |
| TCC | Test Cell Center |
| TCE | trichloroethylene |
| TEPH | total extractable petroleum hydrocarbons |
| TPH |
total petroleum hydrocarbons |
| TVPH | total volatile petroleum hydrocarbons |
| TRC | Technical Review Committee |
| UFL | underground fuel leak |
| USAF | United States Air Force |
| UST | underground storage tank |
| VOC | volatile organic compound |
