Pacific Southwest, Region 9
Serving: Arizona, California, Hawaii, Nevada, Pacific Islands, Tribal Nations
Land Revitalization in Hawai´i
Mānana Storage Area
Pearl Harbor, O´ahu, Hawai´i
The historic Pearl Harbor Naval Complex (PHNC), an active military installation, encompasses approximately 12,600 acres of land and water in Central O´ahu and has been used for a variety of Navy activities for several decades. Military activity on-site led to the contamination of 18 different geographic study areas requiring remediation.
Former Mānana Storage Area
Spanning 109 acres in central O´ahu, the Mānana site was used to collect, stage, and transfer hazardous and non-hazardous materials recovered from Pacific Rim military facilities in the 1970s and 1980s. After the Navy ceased operations on-site, the State of Hawai´i was granted purchasing rights for the property through a legal agreement between the City and County of Honolulu (CCH), Navy, and the State of Hawai'i. This agreement allowed the property to be sold under the condition that the Navy would conduct a site remediation in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act. Preliminary remediation surveys conducted by the Navy found the site's underlying soil to be contaminated with arsenic necessitating clean up. Purchasing rights then transferred to CCH, and in 1993 the property was sold for $109 million.
The Navy worked with EPA in the development of cleanup goals and a Final Remedy. Since the completion of the soil removal remedy by the Navy in 1996, various CCH agencies have used the site for general warehouse and maintenance operations and as a small community park. In 2003, a comprehensive study of the groundwater was completed and Wal-Mart purchased a portion of the site. In 2006, a decision that no further remediation was required was issued.Reuse Facts
- 24-hour Wal-Mart retail store constructed on a portion of the Mānana Storage Area in 2006:
- approximately 148,000 square feet in area
- created 620 jobs
- Remaining portions of PHNC are primarily zoned for light commercial and industrial reuse
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