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Soil and Soil Gas Investigation, San Fernando Valley, California
When seven production wells operated by a Southern California water purveyor reported concentrations of hexavalent chromium and perchlorate above regulatory limits for drinking water, a multiagency effort was conducted to identify the sources.
Posted in All Posts, Investigation, Projects
Tagged 14-dioxane, aerospace, chrome, closure, dioxane, emerging contaminants, groundwater, hexavalent, intrusion, plan, sampling, soil, soil gas, TCE
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Closure Plans for Contaminated Sites and Regulatory Closure Negotiations
Closure plans are prepared to supplement work plans for contaminated sites when a property owner is interested in obtaining No Further Action letters from the lead regulatory agency. Closure plans provide a description of administrative and technical requirements and factors supporting closure, including cleanup goals based on indoor vapor intrusion pathways and groundwater intrusion pathways. Communicating closure strategy is effective for early regulatory approval.
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Tagged closure, extraction, intrusion, johnson-ettinger, PCE, plans, redevelopment, soil, SVE, TCE, vapor, VLEACH
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