We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Red Hill

Investigation and Remediation of Releases at Red Hill

The Administrative Order on Consent (AOC) requires the Navy to develop a plan addressing the January 2014 fuel release from Tank #5 as well as plans to address any future releases of fuel. The Navy is evaluating and implementing various investigative techniques to determine the extent of contamination in the ground around Red Hill. The Navy will also investigate a number of remediation methods for use in the Red Hill area. The Navy will evaluate methods based on their feasibility of implementation, suitableness for use in fractured basalt geology, and effectiveness in reducing contamination.

The Navy submitted a final scope of work on November 5, 2016 which was conditionally approved by the Regulatory Agencies and subsequently revised again and re-submitted on January 5, 2017 (see: Additional Documents).

The Final Approved Scope of Work requires the Navy to develop a number of interim reports that address the installation of groundwater monitoring wells, the extent of available data that can be used to develop models, identification of data gaps, sampling and analysis procedures, assessing natural attenuation, and the development of conceptual site models and groundwater flow models.  To date the Regulatory Agencies have received interim deliverables addressing the installation of new groundwater monitoring wells, the collection and analysis of groundwater samples, data to support the development of the groundwater flow and fate & transport models, the installation of new monitoring wells, the Conceptual Site Model Development Plan, the Attenuation Evaluation Plan, and an addendum to the Sampling and Analysis Plan. These documents are available for review either below or on the “Additional Documents” Page.

On December 13, 2017, the Navy submitted the final two planning documents referenced in the approved Scope of Work, the Risk-Based Decision Criteria Development Plan and the Sentinel Well Network Development Plan, both available for viewing below.

The purpose of the Risk-Based Decision Criteria Development Plan is to establish criteria that are protective of the drinking water receptors. This will be done by determining the risk based decision criteria (RBDC) that ensure the drinking water receptors are protected, using the RBDC for each chemical of potential concern in the calculation of site-specific risk based levels (SSRBLs), and applying the use of the RBDC and SSRBLs to update the Red Hill Ground Water Protection Plan (GWPP) and ensure protection of the water supply.

The Sentinel Well Network Development Plan describes the approach for developing a sentinel monitoring well network for existing drinking water production well locations in the vicinity of the Facility to provide an early warning system of potential impacts from the Facility to protect drinking water receptors.

Documents

If you experience a problem reading a document with assistive technology, please contact us.
You may need Adobe Reader to view files on this page. See EPA’s About PDF page to learn more.
  • Sentinel Well Network Development Plan 11 December, 2017 (PDF)(35 pp, 2 MB, 12/11/2017)
    Sentinel Well Network Development Plan, Investigation and Remediation of Releases and Groundwater Protection and Evaluation, Red Hill Bulk Fuel Storage Facility - JOINT BASE PEARL HARBOR-HICKAM, O‘AHU, HAWAI‘I – December 11, 2017 [Revision 00]
  • Risk-Based Decision Criteria Development Plan 11 December, 2017 (PDF)(41 pp, 2 MB, 12/11/2017)
    Risk-Based Decision Criteria Development Plan, Investigation and Remediation of Releases and Groundwater Protection and Evaluation, Red Hill Bulk Fuel Storage Facility - JOINT BASE PEARL HARBOR-HICKAM, O‘AHU, HAWAI‘I – December 11, 2017 [Revision 00]
  • Conceptual Site Model Development Plan 1 Sept 2017 (PDF)(34 pp, 2 MB, 09/01/2017)
    Conceptual Site Model Development and Update Plan, Investigation and Remediation of Releases and Groundwater Protection and Evaluation, Red Hill Bulk Fuel Storage Facility - JOINT BASE PEARL HARBOR-HICKAM, O‘AHU, HAWAI‘I – September 1, 2017 [Revision 00]
  • Attenuation Evaluation Plan, 1 Sept 2017 (PDF)(46 pp, 3 MB, 09/01/2017)
    Conceptual Site Model Development and Update Plan, Investigation and Remediation of Releases and Groundwater Protection and Evaluation, Red Hill Bulk Fuel Storage Facility - JOINT BASE PEARL HARBOR-HICKAM, O‘AHU, HAWAI‘I – September 1, 2017 [Revision 00]
  • Sampling and Analysis Plan Addendum 01, 1 Sept 2017 (PDF)(206 pp, 6 MB, 09/01/2017)
    Sampling and Analysis Plan Addendum 01, Investigation and Remediation of Releases and Groundwater Protection and Evaluation, Red Hill Bulk Fuel Storage Facility - JOINT BASE PEARL HARBOR-HICKAM, O‘AHU, HAWAI‘I – September 1, 2017 [Revision 00]