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. All CSE personnel are 40-Hour Occupational Safety and Health Administration (OSHA) Hazardous Waste Operations and Emergency Response (HAZWOPER) certified. CSE completes a broad range of response actions required for both simple and complex OHM releases with a cost-effective and innovative approach to remediation in accordance with current and potential future site uses.