Technical Guidance and Fact Sheets
Programmatic Environmental Hazard Evaluations and Environmental Hazard Management Plans
- The Iwilei District encompasses approximately 315 acres of land in Honolulu and includes land owned privately and by the State of Hawaii. The HEER Office is overseeing remediation of potentially hazardous contaminants of concern that are present in soil, groundwater, and soil gas at various locations within the Iwilei District. Widespread, shallow petroleum contamination related to past releases from tank farms and pipelines is the primary concern, but metals and pesticides are also present in some areas.
To assist those who may become exposed to this contamination, the HEER office has developed a Programmatic Environmental Hazard Evaluation (EHE) /Environmental Hazard Management Plan (EHMP) document for the Iwilei District that details remedial measures and controls that are consistent with EHMPs implemented at other sites in Hawaii where contamination is present. No further investigation or remedial action is required at many of these sites, provided that long-term site management requirements in the EHMP are followed.
The PowerPoint for the Webinar on the Programmatic EHE/EHMP that was held on Wednesday, April 15, 2015 is available for download.
- Since 2011, the HEER Office has been working with the Honolulu Authority for Rapid Transportation (HART) to help them identify properties with contamination or potential contamination within or near the 20-mile Honolulu Rail Transit Project (HRTP) alignment. Construction and preconstruction activities throughout the project require the movement of large volumes of soil and groundwater. In order to protect human health and the environment during the project, HART has completed additional sampling in some areas, written characterization reports for specific sites, written Environmental Hazard Evaluations (EHE) and Environmental Hazard Management Plans (EHMP) for specific sites, and developed a Programmatic EHE-EHMP to manage soil and groundwater throughout the entire HRTP. Additional information including these documents and an interactive map are provided at this link.