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Department of Defense (DoD) policy, directed by Defense Environmental Quality Program Policy Memorandum is to identify and fully evaluate suspected problems associated with past hazardous material disposal sites on DoD facilities, control the migration of hazardous contamination from such facilities, and control hazards to health and welfare that may have resulted from these past operations. The Bergstrom AFB records search included a detailed review of pertinent installation records, contacts with 12 government organizations for documents relevant to the records search effort. Activities conducted during the onsite base visit included interviews with 43 past and present base employees, gorund tours of base facilities, a detailed search of installation records, and a helicopter overflight to identify past disposal areas. No direct evidence was found to indicate that migration of hazardous contaminants exists within or beyond Bergstrom AFB boundaries.
The Department of Defense's Installation Restoration Program (IRP) is a four-phase program to identify past waste disposal practices, evaluate environmental impacts, propose mitigation measures, and remediate environmental problems. Phase I of the IRP is an initial assessment and records search to locate potential environmental problems associated with waste disposal practices. The Phase II field study was conducted between March 1984 and August 1986. The investigation focused on whether environmental contamination had occurred, the magnitude and extent of the contamination, and the environmental consequences of migrating pollutants. Nine coreholes and nine groundwater monitoring wells were drilled, and sampled. Contaminants were detected in the soil and groundwater at most of the sites. The contaminants detected in the highest quantities in the groundwater were lead and benzene. However, the shallow groundwater at the base is not used for drinking water. Shallow groundwater use outside the base is unknown, but it is not believed to include drinking water supplies. Additionally, the existing aquifers are thin and discontinuous on the base so that no known immediate treat to human health exists. Each of the eleven sites was categorized according to Air Force criteria: Category I - no further investigation required, Category II - additional work needed, or Category III - institute remedial action. All sites were Category II.
The methodology utilized in the LAFB records search began in September 1984 with a review of past and current industrial operations conducted at the base. Information was obtained from available records, such as shop files and real property files, as well as interviews with past and current base employees from the various operating areas. The next step in the activity review was to determine the past management practices regarding the use, storage, treatment, and disposal of hazardous materials from the various operations on the base. A ground tour of the identified sites were then made by the ESE Project Team to gather site-specific information. A decision was then made, based on all of the above information, regarding the potential for hazardous materials contamination at any of the identified sites.
The Department of Defense's Installation Restoration Program (IRP) is a four-phase program to identify past waste disposal practices, evaluate environmental impacts, propose mitigation measures, and remediate environmental problems. Phase I of the IRP is an initial assessment and records search to locate potential environmental problems associated with waste disposal practices. The Phase II field study was conducted between March 1984 and August 1986. The investigation focused on whether environmental contamination had occurred, the magnitude and extent of the contamination, and the environmental consequences of migrating pollutants. Nine coreholes and nine groundwater monitoring wells were drilled, and sampled. Contaminants were detected in the soil and groundwater at most of the sites. The contaminants detected in the highest quantities in the groundwater were lead and benzene. However, the shallow groundwater at the base is not used for drinking water. Shallow groundwater use outside the base is unknown, but it is not believed to include drinking water supplies. Additionally, the existing aquifers are thin and discontinuous on the base so that no known immediate treat to human health exists. Each of the eleven sites was categorized according to Air Force criteria: Category I - no further investigation required, Category II - additional work needed, or Category III - institute remedial action. All sites were Category II.
The methodology utilized in the GAFB records search began in September, 1984 with a review of past and current industrial operations conducted at the base. Information was obtained from available records, such as shop files and real property files, as well as interviews with past and current base employees from various operating areas. The next step in the activity review was to determine the past management practices regarding the use, storage, treatment, and disposal of hazardous materials from the various operations on the base. A ground tour of the identified sites was then made by the ESE Project Team to gather site-specific information. A decision was then made, based on all of the above information, regarding the potential for hazardous materials contamination at any of the identified sites.
The Department(of Defense's Installation Restoration Program (IRP) is four-phase program to identify past waste disposal practices, evaluate the environmental impacts, propose mitigation measures, and remediate environmental problems. An IRP investigation is currently underway at AF Plant 4, Texas. Phase I, an initial assessment and records search to locate potential environmental problems associated with waste disposal practices, was completed in 1984. Phase II, a field program to investigate potential environmental contamination, has been under way since 1985 under the direction of the U.S. Air Force Occupational and Environmental Health Laboratory (USAFOEHL). Radian Corporation of Austin, Texas, has performed Stage 1 of the Phase II investigation which is reported in this document. Keywords: Installation restoration program, 4, Volatile organics.
This report was prepared to aid in implementing the Air Force Restoration Program at Reese AFB. It is DoD policy to identify and fully evaluate suspected problems associated with past hazardous waste management practices on DoD facilities and to control the migration of hazardous constituents from such facilities that could endanger health and welfare. Major findings include: (1) Since 1941, many hazardous and potentially hazardous wastes have been generated by industrial shop operations at Reese AFB. (2) Fire training exercises have provided a means of disposal of waste Avgas, oils and lubricants, and miscellaneous combustible materials since at least the 1950's. and (3) Landfills and land spreading areas have been used for waste disposal since the base was constructed. Most of the materials disposed have been construction and domestic wastes, although some hazardous wastes were reportedly landfilled in the past. Review of the comprehensive data base assembled for this study resulted in identification of 36 sites of potential contamination at Reese AFB. Ten of these 36 preliminary sites were ranked using the Hazard Assessment Rating Methodology (HARM) based on their potential for migration of hazardous constituents.
A model was developed that ranks U.S. Air Force installations on the basis of potential for contamination form uncontrolled hazardous material disposal sites. The model is a multiple regression equation formulated from data presented in 77 records search reports for previously studied Air Force installations. Data required for the equation should be readily available from military archives and published soil survey reports. The model can be used to assign priorities to open or closed Air Force installations for initiating Phase I of the Installation Restoration Program. The effects of statistical variance in the multiple regression equation are graphically displayed so that program managers can balance program goals and installation investigation costs. Originator supplied keywords: Installation Restoration Program; Multiple regression equation, Hazard Assessment Rating Methodology (HARM), Hazardous materials, Uncontrolled hazardous waste disposal sites, and Site ranking model.