Tag Archives: intrusion
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 sources of chemicals of concern.
Introduction Contaminated sites undergoing remediation are managed with cleanup goals that are driven by guidelines and regulations published by regulatory agencies. Many regulators now require the collection of environmental data which may not be published in guidelines to assess closure. … Continue reading