DEPARTMENT OF THE NAVY 

COMMANDER 

NAVY REGION HAWAII 

850 TICONDEROGA ST STE 110 

JBPHH, HAWAII 96860-5101 

5090 

Ser N45/609 

August 11, 2014 

CERTIFIED NO: 7012 3050 0000 0992 9937 

Ms. Roxanne Kwan 

Hawaii State Department of Health 

Environmental Management Division 

Solid and Hazardous Waste Branch 

Underground Storage Tank Section 

919 Ala Moana Boulevard, Room 212 

Honolulu, HI 96814 

Dear Ms. Kwan: 

SUBJECT: RED HILL TANK 5 RELEASE 

WEEKLY STATUS REPORT N0. 23 

DOH FACILITY ID N0. 9-102271 

DOH RELEASE ID N0. 140010 

As requested in DOH letter UO205RK of February 26, 2014, the 

following information is provided as the twenty-third weekly status 

report for the confirmed release of JP-8 fuel from Tank 5 at the Red 

Hill Fuel Storage Facility. This is the same information that was 

emailed to you on August 6, 2014. To ease reading, only sections with 

changes will be annotated. 

1. Preliminary Work Plan 

No change. 

a) Item 1- Models to estimate downward vertical migration of free 

product. 

No change. 

b) Item 2- Methods or options for non-invasive scanning of 

basalt to determine area and volume of contaminant mass prior 

to any drilling investigation. 

Information from our consultants and other industry queries 

provided that non-invasive scanning of basalt for contaminant 

mass is less effective than the proposed Tank 5 site 

characterization. Action complete. 

c) Item 3- Methods and locations for borings to most efficiently 

characterize the extent of contamination. 

No change. 
5090 

Ser N45/609 

August 11, 2014 

2. Release Response Action Items (initiate immediately, complete as 

soon as practicable) 

a) Action 1- Provide a schedule for the ventilation of Tank 5 

and an estimated date to commence the investigation of release 

point(s) within Tank S. 

b) Action 2- The rate of vertical migration for the released JP 

8 free product is unknown. Information from the previously 

collected basalt cores could be used for initial modeling of 

vertical migration. This information is necessary to protect 

drinking water resources from petroleum contamination. 

Prepare models for petroleum JP-8 releases of 10,000, 20,000 

and 30,000 gallons from points at 25% intervals from the 

bottom to the top of Tank 5. Progress in developing these 

models should be included in the preliminary work plan. 

No change. 

c) Action 3- Removal of petroleum free product from the area 

outside the tank will reduce downward migration of the 

released JP-8 free product. Characterization of the free 

product plume and recovery of free product with increased 

monitoring are required to address this plume. 

If free product is found in the groundwater in the 

characterization wells, efforts to the maximum extent 

practicable will be made for removal. No free product plume 

has been found in the groundwater in the well closest to Tank 

5, or in any other existing monitoring wells. Free product 

removal from basaltic rock has not been feasible at similar 

sites and appreciable amounts are not expected at Tank 5. 

Free product removal from the tank structure (interstitial 

spaces and tunnels) is currently being evaluated by the tank 

experts. 

d) Action 4- Additional studies and procedures are required to 

address the potential and impact of any future releases from 

the USTs within the Complex. This will require new financial 

and personnel resources to complete. Funding for the 

preliminary work plan and all necessary following work is 

critical. 

The Navy submitted responses to DOH and EPA comments on the 

Draft Work Plan for Installation of Two Sentinel Wells. 

The Draft Site Characterization Work Plan/ Sampling and 

Analysis Plan was submitted to the DOH and EPA on July 29, 

2014. 

2 
5090 

Ser N45/609 

August 11, 2014 

If there are any questions regarding this matter, or if more 

information is needed, please contact me at (808) 471-1171, extension 

226. 

AARON T Z.$ 

Direct r 

Region1 nvironmental Department 

By direction of the 

Commander 

Copy to: LT Andrew Lovgren, NAVSUP FLC Pearl Harbor 

Walter Riddlehoover, DLA Energy Pacific 

, 

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