Guidance

Reportable Concentration Tables for Soil and Groundwater

Please select the links below to access NDEP Reportable Concentration lookup tables for soil and groundwater. The Reportable Concentrations shown in these tables supersede and replace all prior versions of the NDEP Reportable Concentration tables, including those published in the 2014 NDEP Draft Guidelines for Discovery Events. However, the release reporting guidelines outlined in the 2014 NDEP Draft Guidelines for Discovery Events are still applicable and should be referenced to determine whether exceedance of the below Reportable Concentrations triggers release reporting requirements.

• NDEP Reportable Concentrations for Common Soil Contaminants
• NDEP Reportable Concentrations for Soil Contaminants
• NDEP Reportable Concentrations for Groundwater

Guidance Documents

• June 19, 2013 — BCA Process For Establishing LUST/CA Project Deadlines
• October 2012 — Case Officer Screening Method for Identifying Sites Where Vapor Intrusion May Pose an Imminent and Substantial Hazard 
• Provisional Draft June 2014 - NDEP Guidelines for discovery events Provides guidelines to the regulated community for when the discovery of soil and/or groundwater contamination at a facility should generate a release report to the NDEP Release Hotline.
• Provisional Draft June 2014 - Groundwater
  • ​Introduction
  • Path to Closure Process
  • Source Control & Extent & Magnitude of Plume
  • Plume Stability Analyses
  • Natural Attentuation
  • Groundwater use, Covenents and Shapefile

• July 2022 - Petroleum in Soils Closure Checklists

This guidance has been drafted by the Nevada Division of Environmental Protection, Bureau of Corrective Actions. Guidance drafted by the BCA is intended to be advisory and is not enforceable by nature. Guidance provides greater detail than regulations or policies on certain methods or approaches acceptable to the Division but does not rule out any other method or approaches implemented by the regulated community.  Guidance does not contain enforceable provisions, as it has not been developed through an administrative rule making process; however, the Division always welcomes feedback from the public and the regulated community on the content of guidance.

2025 CEM Workshops

On April 22 and 24, 2025, NDEP's Bureau of Corrective Actions hosted two workshops for certified environmental managers who work on cases involving environmental site assessments, soil and groundwater remediation, leaking underground storage tanks, mobile releases, and the Nevada Petroleum Fund. Links to the presentations from these workshops are provided below.

• Main Presentation, including the following topics:
  • Amendments to state corrective action regulations
  • What qualifies as a release discovery event
  • General project management expectations and case flow
  • Path to case closure with focus on groundwater contamination
• Contaminant Fate and Transport:
  • Model calibration and use
• Vapor Intrusion Discussion
• Soil-Specific Closures
• Remediation Case Document Management and Certification Program Overview:
  • Public access to remediation case documentation in the Nevada Environmental Activities (NEA) online system
  • CEM project tracking tool (NEA system)
  • Uploading and submitting case documents (NEA system)
  • Certification program history and requirements for CEMs
  • CEM application updates and submittal (NEA system)
  • Continuing education unit requirements and upload/approval (NEA system)