1132 Bishop Street, Suite 1200 

Honolulu, Hawaii 96813 

Phone: (808) 524-3771 Fax: (808) 538-0445

12 May 2014 

Helber Hastert & Fee Planners, Inc. 

Pacific Guardian Center 

733 Bishop Street, Suite 2590 

Honolulu, Hawaii 96813 

Attention: Mr. Tom Fee 

 President 

Project: N62742-11-D-1800 Amendment No. 25, Red Hill Facility Update GWPP, Ground 

Water Model, Contaminant Transport Analysis, Phase 1, Joint Base Pearl HarborHickam, Oahu, Hawaii HDRHNL 2013035 

Subject: Additional Monitoring Well Locations 

In accordance with our agreement for Amendment 25 under Contract N62742-11-D-1800 we 

have been developing a plan and approach for update of the Ground Water Model and the 

Contaminant Transport Analysis for the Red Hill Fuel Facility area. We have engaged Mr. Kolja 

Rotzoll and Mr. Robert Whittier in discussions for development of our plan and approach. Mr. 

Rotzoll developed the Ground Water Model for the Red Hill Fuel Facility area and conducted the 

previous analysis of ground water movement within the area. Mr. Whittier developed the 

Contaminant Transport Model for the Red Hill Fuel Facility area and conducted the previous 

analysis of contaminant transport within the area. Please note that our current focus is to 

provide information needed to respond to the letters from the State of Hawaii Department of 

Health to Navy Region Hawaii dated February 12, 2014 and February 26, 2014. These letters 

relate to the suspected fuel release reported in January 2014. 

A series of meetings were held to discuss the data requirements for update of the Ground Water 

Model and the Contaminant Transport Analysis. It was concluded that additional monitoring 

wells, in addition to additional information from existing available monitoring well locations, 

would be essential for making the update a meaningful and more technically accurate 

representation of ground water movement and contaminant transport. 

Attached is a map prepared by Mr. Rotzoll and Mr. Whittier identifying four locations for 

additional monitoring wells. The wells are numbered in order of priority of importance for the 

update of the ground water and contaminant transport models. Please note that Well 1 and 

Well 2 are generally considered essential for the update and of equal importance. The 

additional data obtained from Wells 1 and 2 would represent the minimum additional information 

needed to generate meaningful and more technically accurate results from the ground water 

and contaminant transport models. 
Helber Hastert & Fee Planners, Inc. 

12 May 2014 

Page 2 

Well 3 and Well 4 would also provide very valuable information that would further enhance the 

models. However, a phased approach with review of data collected from Wells 1 and 2 would 

allow an opportunity to adjust the locations of Well 3 and Well 4 if determined to be beneficial to 

further improve the models. 

Please note that additional future monitoring wells could further enhance the models and 

provide additional information that could be very beneficial for other studies related to the 

ground water resources underlying the Red Hill Fuel Facility. However, we are focusing 

providing information needed for the suspected release reported in January 2014. 

Please do not hesitate to contact us if there are any questions. We look forward to continuing to 

work with you on this project. 

Very truly yours, 

HDR ENGINEERING, INC. 

Francis T. Hino 

Vice President 

Attachment 

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