US Army Corps of Engineers
Honolulu District Website

Former Waikoloa Maneuver Area

The Former Waikoloa Maneuver Area Formerly Used Defense Site (FUDS) property is about 100,000 acres, located on the northwest side of the Island of Hawaii.  The Navy acquired the area in 1943 through a licensing agreement to use as a military training camp and artillery range.  The area served 50,000 troops from 1943 to 1945.

Two surface clean-up activities were done in 1946 and 1954.  The 1946 clean-up was done after the departure of the military.  The 1954 clean-up followed an accidental detonation of a dud fuse or shell killing two civilians and seriously injuring three others.  Munitions and explosives continue to be discovered at the Former Waikoloa Maneuver Area.  Investigation and clearance continue in areas planned for development and where the risk assessments were rated moderate to high.

To date over 100 different types of munitions have been found at the Former Waikoloa Maneuver Area to include mortars, projectiles, hand grenades, rockets, land mines and Japanese ordnances.  Currently, munitions and debris were removed from over 28,000 acres, removing and disposing almost 2,400 munitions and explosives of concern, tons of munitions debris.

The current estimated cost to complete investigation, clean-up and long term monitoring is $723 million.  Currently two Indefinite Delivery Indefinite Quantity (IDIQ) contracts are accomplishing investigation and clean-up.  One contract is for $70 million and the other contract for $30 million, both over 5 years.  These contracts expired in 2014, the Contractor continues to finish reports.  A new contract is being prepared for award to continue remediation work. Also, in accordance with the Comprehensive Environmental Response, Compensation and Liability Act, Remedial Investigation/Feasibility Studies have started that will characterize and assess the nature and extent of the contamination at the Former Waikoloa Maneuver Area.

Community outreach efforts are done with community associations, schools and at community events.  Safety and ordnance knowledge are the primary messages.  The 3Rs of Unexploded Ordnance (UXO) Safety, Recognize, Retreat and Report, is emphasized and used as the message for UXO safety education.



If you have questions or concerns regarding the Waikoloa FUDS program including the recent WMA FUDS boundary expansion, please contact our USACE WMA Field Office in Waimea at (808) 835-4531, or send an e-mail to

Evacuation Information