HEER Office

The Iwilei District encompasses approximately 315 acres of land in Honolulu and includes land owned privately and by the State of Hawaiʻi. 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. This document details remedial measures and controls that are consistent with EHMPs implemented at other sites in Hawaiʻi 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 document can be downloaded here: Programmatic Environmental Hazard Evaluation (EHE) /Environmental Hazard Management Plan (EHMP) document for the Iwilei District

A webinar on the Programmatic EHE/EHMP was held on Wednesday, April 15, 2015. The full Long-Term Management of Contaminated Soil and Groundwater webinar can be viewed on YouTube, or the PowerPoint Presentation can be downloaded.