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Emergency Spill Response Management

CSE provides assessment and oversight for contractors responding to leaks, spills, and releases of oil and hazardous materials (OHM). These could include anything from an oil, hazmat or diesel fuel spill, to a chemical fire or natural disaster. Typical situations requiring emergency response include roadway releases, surface spills, pipeline leaks, and storage tank (AST/UST) ruptures…. Continue Reading →


Contractor Oversight and Sampling

During a spill response CSE is responsible for: Assessing the extent of the release and affected areas; Determining and delegating response actions; Performing field screening and environmental sampling; Selecting and submitting samples to be laboratory analyzed; Performing a risk characterization; Preparing the Permanent Solution closure report and associated documents to be submitted to the MassDEP…. Continue Reading →


Contaminate Nature and Extent Delineations

CSE has extensive experience with investigating and characterizing contamination of soils and groundwater. Our team has been involved in planning, field sampling and data analysis phases of contaminant investigations at hundreds of sites across the New England region for more than 25 years. Characterizing the magnitude and extent of groundwater contamination is a challenging task… Continue Reading →


Imminent Hazard Evaluations

The focus of an Imminent Hazard Evaluation is to determine actual or likely exposures within the ground surface, drinking water, or indoor air to human and environmental receptors under current site conditions and the surrounding environment based upon the potential for carcinogenic health effects. Risk Characterizations for Imminent Hazard Evaluations are conducted separately for safety,… Continue Reading →


Response to Notices by Regulatory Agencies

The Massachusetts Oil and Hazardous Materials Release, Prevention and Response Act (M.G.L. c.21E) and the Massachusetts Contingency Plan (the MCP), 310 CMR 40.0000, contain the requirements and timeframes for completing the cleanup of releases. Many clients have reached out to CSE after receiving a MassDEP ‘Notice of Responsibility’ letter, indicating an urgent legal matter and… Continue Reading →


Determination of Regulatory Reporting Requirements

CSE can help to identify whether a release and/or threat of release of oil and hazardous material requires notification to the MassDEP. There are three (3) reportable release notification thresholds according to the MCP: 2-Hour Notification 72-Hour Notification 120-Day Notification If you have experienced a release and/or threat of release of oil and hazardous materials… Continue Reading →