Latest Technical Guidance

The HEER Office has updated TGM Section 19.6: Environmental Hazard Management Plans, regarding the preparation and implementation of Environmental Hazard Management Plans (EHMPs) for on-site management of contaminated soil and groundwater.  Three types of EHMPs are discussed: 1) Site-Specific EHMPs (individual parcels), 2) Programmatic EHMPs (contamination across multiple parcels or for specific types of activities), ...
Read More TGM Update, Section 19.6: Environmental Hazard Management Plans

To assist with the development of appropriate Construction EHMPs (C-EHMPs), HEER has released a C-EHMP Template and a C-EHMP Fact Sheet. HEER recommends that project-specific C-EHMPs be developed using the C-EHMP Template tool in order to expedite review and approval; however, it should be noted that this is not a guidance document and the template ...
Read More Revised: Construction EHMP Template & Fact Sheet

The HEER Office has been developing new technical guidance for the evaluation of chemical exposure hazards to coastal marine wildlife over the last several years and has now posted initial guidance on this topic in the on-line HEER Office Technical Guidance Manual (TGM). See Section 21 in the link to the HEER TGM below. The ...
Read More TGM Update, Section 21: Environmental Risk Assessment Guidance for Marine Coastal Environments

A new Draft HEER Office Technical Guidance Manual (TGM) Section on LNAPL/Petroleum Guidance is linked below for review and comment by environmental consultants and other interested individuals. Comments are requested by August 31, 2018. See the Invitation to Comment letter also linked below for details on the ways you may comment and where to send ...
Read More Draft TGM Update, Section 9.3: LNAPL / Petroleum Guide

A new draft Section of the HEER Office Technical Guidance Manual (TGM), on Environmental Risk Assessment Guidance for Marine Coastal Environments, is linked below for review and comment by environmental consultants and other interested individuals. **Comments are requested by March 30, 2018**. See the Invitation to Comment letter also linked below for details on the ...
Read More Draft TGM Update, Section 21: Environmental Risk Assessment Guidance for Marine Coastal Environments (February 2018)

The 2011 HEER Office document Guidance for Soil Stockpile Characterization and Evaluation of Imported and Exported Fill Material was updated in October 2017. Updates primarily pertain to regulation of soil as a waste under RCRA. The updated guidance is available on the HEER Technical Guidance web page.

Updates to Section 7 of the HEER Office Technical Guidance Manual for soil vapor sample collection have been posted for public review. The updates primarily address the incorporation of Large Volume Purge (LVP) sampling methods for testing of sub-slab vapors and evaluation of vapor intrusion risk. Significant updates are highlighted in yellow in the text. ...
Read More Draft TGM Update, Section 7: Large-Volume Purge Vapor Sampling

Draft Updates to Section 7 of our Technical Guidance Manual (TGM): Soil Vapor and Indoor Air Sampling Guidance are available on the TGM Website.

A new Fact Sheet and Sampling Guide for Organochlorine Termiticides at Residential Sites have been posted on the HEER Office Website, Technical Guidance and Fact Sheet page. Past Use of Chlordane, Dieldrin, and other Organochlorine Pesticides for Termite Control in Hawaiʻi: Safe Management Practices around Treated Foundations or during Building Demolition A Guide to Soil ...
Read More Fact Sheet and Sampling Guide: Organochlorine Termiticides at Residential Sites