Inactive Hazardous Sites Guidance Documents
The Inactive Hazardous Sites Branch currently publishes four contaminant cleanup guidance documents that are typically updated annually. The first document, "Registered Environmental Consultant Program Implementation Guidance," applies only to sites that have signed administrative agreements to conduct a remedial actions under the IHSB's Registered Environmental Consultants Program. The second guidance document, "Inactive Hazardous Sites Program Guidelines for Assessment and Cleanup," provides guidance to responsible parties conducting remedial actions under the State-Lead Cleanup Program. The third guidance document, "Guidelines for Addressing Old Landfills and Dumps," provides guidance for assessment and remedial activities under the IHSB's Pre-Regulatory Landfill Program. The fourth guidance document includes procedures for mildly contaminated sites. The IHSB has also published guidance for structural vapor intrusion potential assessments and for preparing Notices of Inactive Hazardous Substance or Waste Disposal sites.
Contaminant Assessment and Remediation Guidance
- Guidelines for Assessment and Cleanup of Contaminated Sites (January 2020)
- Pre-Regulatory Landfill Guidance [PDF] (May 2020)
- Quick Clean Procedures (for mildly contaminated sites) [PDF] (December 2017)
- Risk-Based Remediation Eligibility, Procedures, and Risk Calculator
Vapor Intrusion Guidance
- DWM Vapor Intrusion Guidance (includes screening levels)
Remediation Goals
- Soil Remediation Goals Table (July 2020)
- 15A NCAC 2L - Groundwater Quality Standards
- 15A NCAC 2L - Interim Groundwater Quality Standards (Interim Maximum Allowable Concentrations or IMACs)
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