Remedial investigation/feasibility study hazardous wastes remediation

Remedial investigation/feasibility studies being conducted at the 46 NPL sites where creosote has been found and at the numerous creosote-contaminated Resource Conservation and Recovery Act (RCRA) corrective action sites should provide data on concentrations of the mixture in contaminated media in the vicinity of hazardous waste sites. For example, creosote constituents have been found in surface water impoundments and soil samples taken near wood treatment facility sites in Colorado, Louisiana, Texas, and Montana. 

A number of site-specific factors must first be evaluated. Including (1) the chemical characteristics and amount of hazardous waste, (2) the potential for release to the environment, (3) the sensitivity of the particular environment to the hazardous waste, (4) the proximity of the hazardous waste to humans, and (5) Its potential effect on human health. Then the environmental engineer must decide If a field Investigation of the site Is necessary, whether a feasibility study for remedial action Is required, what remedial action Is required to mitigate. If not eliminate, the contamination, and finally, what monitoring plan will enable the efficacy of the remedial action to be evaluated. 

Remedial investigations and feasibility studies at hazardous waste sites are potential sources of information on possible exposures of populations surrounding hazardous waste sites. 

No information was located on any on-going studies on the fate, transport, or potential for human exposure to 2,3-benzofuran. Remedial investigations and feasibility studies at hazardous waste sites may provide information on environmental levels, transport, and transformation of 2,3-benzofuran. 

No long-term research studies were located regarding the environmental fate of zinc. However, remedial investigations and feasibility studies on the NPL sites known to have zinc contamination are expected to be completed in the near future and may add to the current knowledge regarding the transport and transformation of zinc in the environment. In addition, environmental monitoring currently being conducted at NPL hazardous waste sites will likely add to the current database on environmental levels of zinc. 

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