# Preliminary Work Plan Red Hill Fuel Storage Facility Pearl Harbor, Oahu, Hawaii Latitude: 21 o 

# 22’15” N Longitude: 157 o 

# 53’33” W DOH Facility ID No. 9-102271 DOH Release ID No. 140010
March 2014

Prepared for: Naval Supply Systems Command Fleet Logistics Cent er Pearl Harbor 1942 Gaffney Str eet, Suite 100 JBPHH, Hawaii 96860-4549Preliminary Work Plan Red Hill Fuel Storage Facility March 2014

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### i 

# Table of Contents Table of Contents

............................................................................................................................. i Executive Summary ......................................................................................................................... 1 1.0 Introduction .......................................................................................................................... 3 1.1 Background .................................................................................................................... .. 3 1.1.1 Site Description ......................................................................................................... 3 1.1.2 Facility Information .................................................................................................. 3 1.1.3 UST Information ....................................................................................................... 4 1.2 Groundwater Monitoring Wells ....................................................................................... 4 2.0 Vertical Migration Models ................................................................................................... 4 3.0 Non-Invasive Scanning ........................................................................................................ 5 4.0 Methods and Locations for Borings ..................................................................................... 5 5.0 References ............................................................................................................................ 9 Figure 1 Site Location Map ..........................................................................................................7 Figure 2 Site Layout Map ...................................................................................................... .......8 Appendix A – DOH Correspondence Appendix B – Boring Logs and Well Construction LogsPreliminary Work Plan Red Hill Fuel Storage Facility March 2014

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### 1 

# Executive Summary Naval Facilities Engineering Command, Hawaii ( NAVFAC Hawaii) prepared this preliminary Work Plan in response to the State of Hawaii Department of Health (DOH) release response letters dated February 12, 2014 and February 26, 2014 for the Red Hill Fuel Storage Facility. The objective of this Work Plan is to address the three elements de scribed in the initial February 12, 2014 letter and reiterated in the February 26, 2014 letter. The Facility is located in the south-central portion of the Isla nd of Oahu, Hawaii, in Halawa Heights. There are 18 active and 2 inactive, 12.5 million gallon, field-constructed underground storage tanks (USTs) located at the Red Hill Fuel Storage Facility. A confirmed release of Jet Propellant 8, also known as Jet Propulsion fuel , type 8 (JP-8) from Tank 5 was reported on January 24, 2014. Immediately following notif ication to the DOH, the Navy collected groundwater samples from monitoring wells to determine if the release had impacted groundwater beneath the Facility or the nearby water supply well. Results indicated no fresh fuel from Tank 5 in the groundwater or drinking water samples. Summarized below is the Navy’s response to th e DOH request to provide a preliminary work plan that includes three elements: 1. Models to estimate downward verti cal migration of free product – The Navy is in the process of hiring a qualified contractor w ith the expertise to perform this work. 2. Methods or options for non-invasive scanning of basalt to determine area and volume of contaminant mass prior to any drilling investigation – The Navy has queried the subject matter experts (SMEs) at Navy headquarters in Washington, D.C. to determine if there are other known locations where this technology has been used. The SMEs indicate that modeling to investigate vertical subsurf ace movement of pure petroleum liquid product has not been undertaken at other Navy sites with similar subsurface features due to the unusual nature of the subsurface. 3. Methods and locations for borings to most efficiently characterize the extent of contamination – The Navy is in the process of hi ring a qualified contractor with the expertise to perform this work. Additiona lly, the Navy intends to evaluate various removal and remediation technologies that woul d be effective and feasible for future fullscale implementation. The Navy has implemented a comprehensive drinking water and groundwater monitoring program to ensure the safety a nd viability of the dri nking water aquifer ben eath the facility. The monitoring program includes collecting groundwat er samples quarterly from U.S. Navy well 2254-01 (RHMW2254-01) and three wells installe d in the Facility lower access tunnel (RHMW01, RHMW02, RHMW05). The U.S. Navy well 2254-01 is located approximately 3,000 feet downgradient from the Red Hill Fuel Stor age Facility and provides a percentage of the potable water to the Pearl Harbor Water Syst em. The groundwater samples are analyzed for petroleum constituents and compared agai nst DOH Drinking Water Environmental Action Levels (EALs) (DOH, 2005a).Preliminary Work Plan Red Hill Fuel Storage Facility March 2014

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### 2 Compliance sampling to date indicate that all Fe deral and State safe drin king water standards are attained. The Navy is committed to providing safe drinking water to its users as well as ensuring the safety of the surrounding Pearl Harbor aquife r for all other users, while operating and maintaining the Red Hill Fuel Storage Facilit y. To accomplish this, the Navy will continue to provide weekly status reports to the DOH and will communicate all aspects of the investigation and remediation with the DOH.Preliminary Work Plan Red Hill Fuel Storage Facility March 2014

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### 3 

# 1.0 Introduction There are 18 active and 2 inactive, 12.5 milli on gallon, field-constructed underground storage tanks (USTs) located at the Red Hill Fuel Storage Faci lity (hereafter referred to as “the Facility”). The Facility is located at Joint Base Pearl Ha rbor-Hickam (JBPHH), Oahu, Hawaii. The Facility is operated by Naval Supply Systems Command ( NAVSUP) Fleet Logistics Center Pearl Harbor (FLCPH). As requested in DOH letter U0204RT of February 12, 2014, and DOH letter U0210RK of February 26, 2014, this preliminary Work Plan presents methods for achieving the requirements in Hawaii Administrative Rules (HAR) 11-281 S ubchapter 7, Release Response Action. The release response actions are require d in response to the confirmed release of Jet Propulsion fuel 8 (JP-8) from Tank 5. A copy of the DOH letter is presented as Appendix A. The following are included in this preliminary Work Plan: 1. Models to estimate downward vertic al migration of free product. 2. Methods or options for non-i nvasive scanning of basalt to determine area and volume of contaminant mass prior to any drilling investigation. 3. Methods and locations for borings to most efficiently characterize the extent of contamination. 

## 1.1 Background The following sections provide a description of th e site and information on the Facility and USTs. 1.1.1 Site Description The Facility is located in Hala wa Heights on Oahu, Hawaii. Land adjacent to the north of the Facility is occupied by Halawa Correctional Facility and private businesses. Land to the south and west of the Facility include s the Coast Guard Reservation. Moanalua Valley is located east of the Facility (Dawson, 2006). Figu re 1 shows the Facility location. The U.S. Navy Public Works Department operate s a potable water supply shaft and associated pumping station, which, in spite of its largely late ral configuration is officially designated as “well 2254-01”. The station consists of a water in filtration shaft that is approximately 1,300 feet long connected to a water supply pumping station located appr oximately 3,000 feet downgradient (west) of the Facili ty. The pumping station provides a percentage of the potable water to the Pearl Harbor Water System, whic h serves approximately 52,200 military consumers (TEC, 2008). 1.1.2 Facility Information The Facility consists of 18 active and 2 inactive USTs operated by NAVSUP FLCPH. Each UST has a capacity of 12.5 million gallons. The Faci lity is located approximately 100 feet above the basal aquifer (Dawson, 2006).Preliminary Work Plan Red Hill Fuel Storage Facility March 2014

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### 4 1.1.3 UST Information The USTs were constructed in the early 1940s. The tanks were constructed of steel and are currently used to store Jet Propellant 5, also kno wn as Jet Fuel (JP-5), Jet Propellant 8, also known as Jet Propulsion fuel, type 8 (JP-8), and Diesel Fuel Marine (DFM, or F-76). Previously, several tanks stored Navy Special Fuel Oil, Navy Distillate, aviation gasoline, and motor gasoline. Each tank measures approximately 250 f eet in height and 100 feet in diameter. The upper domes of the tanks lie at depths varyi ng between approximately 100 feet and 200 feet below the existing ground surface (TEC, 2006). 

## 1.2 Groundwater Monitoring Wells Five groundwater monitoring wells were installed at the Fa cility: RHMW01, RHMW02, RHMW03, RHMW04, and RHMW05. The locations of the monitoring wells are shown on Figure 2. Boring logs and well constructi on logs are presented as Appendix B. RHMW01: From 1998 to 2001, the Navy conducted an inve stigation at the Facility to assess potential releases from the fuel storage Facil ity. In February 2001, the Navy installed a one-inch diameter sentinel well (MW-V1D) to monitor fo r contamination of the basal aquifer underlying the Facility. The well was instal led and completed at approximat ely 100 feet below grade. At the time of well completion, depth to water in MW-V1D was measured at 86 feet below grade (Dawson, 2006). Monitoring well MW -V1D was later renamed RHMW01. RHMW02, RHMW03, RHMW04: As part of a site investig ation, TEC, Inc. installed three groundwater monitoring wells at the Facil ity between June and September 2005. Well RHMW02 was installed in the lower access tu nnel near Tanks 5 and 6. Well RHMW03 was installed in the lower access tunnel near Tanks 13 and 14. Well RHMW04 was installed hydraulically upgradient of the USTs to provide geochemistry for water moving through the basal aquifer beneath the Facility. Wells RH MW02 and RHMW03 were completed to depths of approximately 125 feet below the tunnel floor, and well RHMW04 was completed to a depth of approximately 300 feet below ground surface outside the tunnel. RHMW05: In April 2009, groundwater monitoring we ll RHMW05 was insta lled down-gradient from the Facility, within the lower access tunnel between RHMW01 and RHMW2254-01. The well was installed to identify contaminant migrati on before it reaches the infiltration gallery at RHMW2254-01. 

# 2.0 Vertical Migration Models At this time, it is unknown exactly where on Ta nk 5 the JP-8 release oc curred and if or how much volume has migrated past the tank structur e to the surrounding rock substrate. Since the monitoring wells located within th e Facility were installed in the lower access tunnel, the boring logs for those monitoring wells provide geologic information for the subsurface located below the bottom of the USTs. To initia te the vertical modeling effort, the boring logs may be used to generalize the geology of the subsurface from the top of the ridge to the bottom of the USTs. A survey of subject matter expe rts (SMEs) at Navy headquarter s in Washington, D.C. indicate that modeling to investigate vertical subsurf ace movement of pure petr oleum liquid product hasPreliminary Work Plan Red Hill Fuel Storage Facility March 2014

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### 5 not been undertaken at other Na vy sites with similar subsurface features due to the unusual nature of the subsurface: a combination of co mplex, alternating fractured and competent (i.e., “solid”) basalt rock layers with occasional thin layers of ash and other less competent rock. However, the Navy has extended the search for a ppropriate transport mode ls for this type of environment. The Navy has initiated the process to hire a contractor with demonstrated expertise and experience with non-Navy sites with sim ilar subsurface conditions to identify any appropriate models to estimate downwar d vertical migration of free product. 

# 3.0 Non-Invasive Scanning A survey of Navy SMEs also indicate that ther e are no remote sensing (g eophysical) applications for non-invasive scanning that can feasibly de termine area and volume of contaminant mass in environments like the alternating competent/fractur ed basalt observed at th e Facility. There is too much subsurface variability, complexity, a nd obstruction in the observed substrate for nonintrusive geophysical approaches such as seismi c, ground penetrating rada r (GPR), time-domain reflectometry (TDR), thermal, etc. to produce usable information. In the absence of useful geophysical methods, th e usual approach for differentiating/ delineating the extent of contaminant plumes for saturated and unsaturated is by way of intrusive methods. Research done to explore options for minimally intrusive methods for characterizing near surface contamination such as laser induced fluorescence (LIF) with a direct pus h rig is intended for consistent nonconsolidated (e.g., soil) substrate a nd is not suitable for the competent /fractured basalt substrate at the Facility. Conversations within the Navy and with other agencies such as the United States Environmental Protection Agency (EPA) have indicated that the F acility is unique not only for the size of the features but also for the unusual na ture and extreme complexity of the substrate. Therefore, the majority of conventional methods that would ty pically be appropriate for conventional-sized facilities with conventional conditions will either not be feasible or not yield usable information. The only two methods available to determine ap proximate area and volume of contaminant mass are borings for intervals of less competent rock, and coring to penetrate mo re frequent competent and fractured rock intervals, combined with sampling, in-field sc reening, and laboratory analytical confirmation analyses. The limitations of these available methods are that they provide information to a limited ex tent and are also the most invol ved in terms of cost, level of effort, and logistics, particularly factoring in the relative immensity of the tank size and the substrate. 

# 4.0 Methods and Locations for Borings Because the feasible intrusiv e sampling characterization methods will yield information on a comparatively localized area, the Navy will try to di rect the investigation to the most appropriate area that can be practicably identified. Planne d inspection of the Tank 5 interior after draining and safety preparations have b een completed pose the best possibility of identifying the most appropriate area to localize the location of the release. The tank inspection will commence after Tank 5 has been vented and deemed safe for entry.Preliminary Work Plan Red Hill Fuel Storage Facility March 2014

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### 6 While the tank is being vented, the Navy will hi re a contractor to determine methods and locations for borings to most effi ciently characterize the extent of contamination. Based on the tank inspection findings, the contractor will be exp ected to propose locations to determine if the fuel might be trapped in the interstitial space between the steel tank wall and the outer concrete wall, or if the fuel has migrated beneath the tank, and if so, to what depth. The Navy intends to evaluate the performance of a pilot study to evaluate the effectiveness and feasibility of bioventing, soil vapor extraction, or other appr opriate methods to reduce the volume of trapped product in-p lace, and if feasible, light non-aqueous phase liquid (LNAPL) removal from fractured basalt. Bioventing is being used at other Navy sites on Oahu with similar geology and is proven to be successful at reducing contaminant concentrations in both the vadose zone and groundwater.KAENA POINT KAHUKU

MAKAHA

MAILI

NANAKULI

WAIANAE

BARBERS POINT EWA BEACH HONOLULU INTERNATIONAL

AIRPORT WAIKIKI
DIAMOND HICKAM AFB KAPOLEI

EWA MOKULEIA HALEIWA WAIMEA
LAIE

PUNALUU

KAAAWA

WAIAHOLE

KANEOHE BAY

KANEOHE MOKAPU

KAILUA

WAIMANALO

MAKAPUU POINT

HAWAII KAI KAHALA HONOLULU WAHIAWA SCHOFIELD BARRACKS

PEARL CITY 83

930

803 99

80 780 83

61 63 78 72 61 83 836

76 63 780 93 930

750 99

H3

H1 H1 H1 H2

(RESIDENTIAL HOUSING) HALAWA CORRECTIONAL FACILITY NAVY FIRING RANGE



# RED HILL BULK FUEL STORAGE FACILITY HALAWA SHAFT BOARD OF WATER SUPPLY

PUMP STATION (2354-01)

GRAPHIC SCALE 0 900 900 Scale in Feet The accuracy of this document is limited to the quality and scale of the source information. This document is not a legal representation of an engineered survey. NOTES

SOURCES Pearl Harbor Base Map Navy GIS files PROJECT LOCATION

FIGURE 1 SITE LOCATION GROUNDWATER MONITORING RED HILL BULK FUEL STORAGE FACILITY NAVAL SUPPLY SYSTEM COMMAND (NAVSUP) FLEET LOGISTICS CENTER

JBPHH, OAHU, HAWAIIRHMW04HDMW2253-03SVMP04SVMP06SVMP12SVMP14SVMP16SVMP18SVMP20SVMP17SVMP15SVMP11SVMP09SVMP07SVMP05SVMP03(RESIDENTIAL HOUSING)RED HILL BULK FUELSTORAGE FACILITYSVMP13SVMP08HALAWACORRECTIONALFACILITYNAVY FIRING RANGEHALAWA SHAFTBOARD OF WATER SUPPLYPUMP STATION (2354-01)SVMP02SVMP10OWDFMW01RHMW2254-01RHMW01RHMW02RHMW03RHMW05GRAPHIC SCALE0800800Scale in FeetThe accuracy of this document is limited to the qualityand scale of the source information. This document isnot a legal representation of an engineered survey.NOTESRED HILL BULK FUEL STORAGE FACILITYHALAWA CORRECTIONAL FACILITYHALAWA STREAMBUILDINGROADABOVEGROUND STORAGE TANKWATER TANKSOIL VAPOR MONITORING POINTGROUNDWATER MONITORING WELLLOCATED INSIDE TUNNELGROUNDWATER MONITORING WELLLOCATED OUTSIDE TUNNELBOARD OF WATER SUPPLY PUMPSTATIONTUNNELLEGENDSOURCESPearl Harbor Base MapNavy GIS filesFIGURE 2SITE LAYOUTGROUNDWATER MONITORINGRED HILL BULK FUEL STORAGE FACILITYNAVAL SUPPLY SYSTEM COMMAND (NAVSUP)FLEET LOGISTICS CENTERJBPHH, OAHU, HAWAIIPreliminary Work Plan Red Hill Fuel Storage Facility March 2014

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### 9 

# 5.0 References Dawson Group, Inc. 2006. Fourth Quarter 2005 Groundwater Sam pling Report, Red Hill Fuel Storage Facility, Hawaii. February. Hawaii Administrative Rules, Titl e 11, Chapter 281, Subchapter 7. State of Hawaii Department of Health. 2005a. Screening for Environmental Concerns at Sites with Contaminated Soil and Groundwater, Volu me 1: Summary Tier 1 Lookup Tables. Interim Final. May. State of Hawaii Department of Health. 2005b. Use of May 2005 Environmental Action Levels (“EALs”) at Leaking Underg round Storage Tank Sites . Memo. 15 July. The Environmental Company, Inc. 2006. Red Hill Bulk Fuel Storage Facility, Final – Addendum Planning Documents, Pearl Harbor, Hawaii. May. The Environmental Company, Inc. 2008. Red Hill Bulk Fuel Storage Facility, Final Groundwater Protection Plan, Pearl Harbor, Hawaii. January.

# Appendix A DOH Correspondence

- Letter of February 12, 2014

- Letter of February 26, 2014

# Appendix B Boring Logs and Well Construction Logs

# GEOLOGIC BOREHOLE LOG

Location: RHSF Station Name: Location Type: Location Description: RHMW02 Establishing Company: TEC Inc. Drilling Foreman: Dean McLure Drilling Company: Valley Well Drilling Geologist: N. Griffin/S. MacMillan Ground Surface Elevation (ft): Datum: MSL Drilling Sampling Method: Borehole Diameter (in): 5 Total Depth (ft): Date Drilling Started: 27 July 2005 Date Drilling Ended: 28 July 2005 Monitoring Well

Remarks: Rock Coring

lower access tunnel, N of Tank 6

106.57

103.5

Page 1 of 3

# GEOLOGIC BOREHOLE LOG

Location: RHSF Station Name: Location Type: Location Description: RHMW02 Establishing Company: TEC Inc. Drilling Foreman: Dean McLure Drilling Company: Valley Well Drilling Geologist: N. Griffin/S. MacMillan Ground Surface Elevation (ft): Datum: MSL Drilling Sampling Method: Borehole Diameter (in): 5 Total Depth (ft): Date Drilling Started: 27 July 2005 Date Drilling Ended: 28 July 2005 Monitoring Well

Remarks: Rock Coring

lower access tunnel, N of Tank 6

106.57

103.5

Page 2 of 3

# GEOLOGIC BOREHOLE LOG

Location: RHSF Station Name: Location Type: Location Description: RHMW02 Establishing Company: TEC Inc. Drilling Foreman: Dean McLure Drilling Company: Valley Well Drilling Geologist: N. Griffin/S. MacMillan Ground Surface Elevation (ft): Datum: MSL Drilling Sampling Method: Borehole Diameter (in): 5 Total Depth (ft): Date Drilling Started: 27 July 2005 Date Drilling Ended: 28 July 2005 Monitoring Well

Remarks: Rock Coring

lower access tunnel, N of Tank 6

106.57

103.5

Page 3 of 3

## Well Construction Log Page 1 of 1

Estimated Construction 

### 2

Actual Construction

Ground Surface Ground Surface 

### Annular Fill
Bentonite Bags Cement: Bkts 

### Monterey #3 Type Bags 

### Screen 1.939 2.375 From: To: 

### 84' 99' Slot #: 

### 0.02 Material: 

### PVC Sch 80 Diameter ID: OD: From: To: 

### 2.375 0' 84' ID: OD: 

### 1.939 Material: 

### PVC Sch 80 Location: 

### Red Hill BFSF
VWD

Azimuth: Time Driller: Sys_Samp_Code: 

### Drilling Protocol Dean Date:

Borehole caved in to 99' Top of grout: 

### 8"

Top of Screen: 

### 84.0'

Bore Hole TD: Well TD: 

### 99.0' 103.5' Length: 

### 12" 12"

Notes: 

### 7/27/2005 Elevation:

Water Level: 

### 87.1' Pellets: Chips: Bags 

### n/a

Diameter Station ID: Station Name: 

### RHMW02

Sand Cement Grout B. Chips B. Pellets TD: 

### 103.5' Start: Finish: Date Finished: 

### 7/28/2005

Hole Diameter: 

### Casing 5" Drilling Method: 

### Coring Inclination: 

### 90 ° CO.:



### Surface Casing Type: 

### Traffic Cover

Diameter: Sand: Grout: Bags 

### 0 10 4 12

Top of Chips: 

### 37.0'

Top of Pellets: 

### 62.2'

Top of Sand: 

### 78.8'

# GEOLOGIC BOREHOLE LOG

Location: RHFSF Station Name: Location Type: Location Description: RHMW03 Establishing Company: TEC Inc. Drilling Foreman: Tim Robertson Drilling Company: Valley Well Drilling Geologist: N. Griffin/S. MacMillan Ground Surface Elevation (ft): Datum: MSL Drilling Sampling Method: Borehole Diameter (in): 5 Total Depth (ft): Date Drilling Started: 2 September 2005 Date Drilling Ended: 7 September 2005 Monitoring Well

Remarks: Rock Coring

lower access tunnel, N of Tank 14

122.11

118

Page 1 of 4

# GEOLOGIC BOREHOLE LOG

Location: RHFSF Station Name: Location Type: Location Description: RHMW03 Establishing Company: TEC Inc. Drilling Foreman: Tim Robertson Drilling Company: Valley Well Drilling Geologist: N. Griffin/S. MacMillan Ground Surface Elevation (ft): Datum: MSL Drilling Sampling Method: Borehole Diameter (in): 5 Total Depth (ft): Date Drilling Started: 2 September 2005 Date Drilling Ended: 7 September 2005 Monitoring Well

Remarks: Rock Coring

lower access tunnel, N of Tank 14

122.11

118

Page 2 of 4

# GEOLOGIC BOREHOLE LOG

Location: RHFSF Station Name: Location Type: Location Description: RHMW03 Establishing Company: TEC Inc. Drilling Foreman: Tim Robertson Drilling Company: Valley Well Drilling Geologist: N. Griffin/S. MacMillan Ground Surface Elevation (ft): Datum: MSL Drilling Sampling Method: Borehole Diameter (in): 5 Total Depth (ft): Date Drilling Started: 2 September 2005 Date Drilling Ended: 7 September 2005 Monitoring Well

Remarks: Rock Coring

lower access tunnel, N of Tank 14

122.11

118

Page 3 of 4

# GEOLOGIC BOREHOLE LOG

Location: RHFSF Station Name: Location Type: Location Description: RHMW03 Establishing Company: TEC Inc. Drilling Foreman: Tim Robertson Drilling Company: Valley Well Drilling Geologist: N. Griffin/S. MacMillan Ground Surface Elevation (ft): Datum: MSL Drilling Sampling Method: Borehole Diameter (in): 5 Total Depth (ft): Date Drilling Started: 2 September 2005 Date Drilling Ended: 7 September 2005 Monitoring Well

Remarks: Rock Coring

lower access tunnel, N of Tank 14

122.11

118

Page 4 of 4

## Well Construction Log Page 1 of 1

Top of Chips: 

### 57.5' Grout 

### 31.0'

Top of Pellets: 

### 86.5'

Top of Sand: 

### 97.0' Sand: Grout: Bags 

### 0.5

9 2 8 Monterey #3 Type Bags



### Surface Casing Type:
Diameter: 

### Flush Traffic Cover 12" Hole Diameter: 

### Casing 5" Drilling Method: 

### Coring Inclination: 

### 90 ° CO.: Start: Finish: Date Finished: 

### 9/7/2005 Station Name: 

### RHMW03

Sand Cement Grout B. Chips B. Pellets TD: 

### 118.0' 9/2/2005 Elevation:

Water Level: 

### 104.95 ' Pellets: Chips: Bags 

### n/a

Diameter Station ID:

Length:

Notes: 

### 12" Top of grout: 

### 8.0"

Chips

Top of Screen: 

### 102.3'

Bore Hole TD: Well TD: 

### 117.3' 118.0' Location: 

### Red Hill BFSF
VWD

Azimuth: Time Driller: Sys_Samp_Code: 

### Drilling Protocol Tim Date:

ID: OD: 

### 1.939" Material: 

### PVC Sch 80 From: To: 

### 2.375" 0' 102.3' PVC Sch 80 Diameter ID: OD: 

### Screen 1.939" 2.375" From: To: 

### 102.3' 117.3' Slot #: 

### 0.02 Material:



### 1.5 Annular Fill
Bentonite Bags Cement: Bkts
Actual Construction

Ground Surface Ground Surface Estimated Construction



### 26.0'

# GEOLOGIC BOREHOLE LOG

Location: RHFSF Station Name: Location Type: Location Description: RHMW04 Establishing Company: TEC Inc. Drilling Foreman: Tomas Fernandez Drilling Company: Valley Well Drilling Geologist: N. Griffin/S. MacMillan Ground Surface Elevation (ft): Datum: MSL Drilling Sampling Method: Borehole Diameter (in): 8 Total Depth (ft): Date Drilling Started: 22 July 2005 Date Drilling Ended: 26 July 2005 Monitoring Well

Remarks: Rock Coring west. access rd., S of Navy Firing Range

313.03

320.5

Page 1 of 2

# GEOLOGIC BOREHOLE LOG

Location: RHFSF Station Name: Location Type: Location Description: RHMW04 Establishing Company: TEC Inc. Drilling Foreman: Tomas Fernandez Drilling Company: Valley Well Drilling Geologist: N. Griffin/S. MacMillan Ground Surface Elevation (ft): Datum: MSL Drilling Sampling Method: Borehole Diameter (in): 8 Total Depth (ft): Date Drilling Started: 22 July 2005 Date Drilling Ended: 26 July 2005 Monitoring Well

Remarks: Rock Coring west. access rd., S of Navy Firing Range

313.03

320.5

Page 2 of 2

## Well Construction Log Page 1 of 1

Pad: 

### 3X3 Length: 

### 6 Annular Fill
Bentonite Bags Cement: Bkts



### 12" Actual Construction

Ground Surface Ground Surface Estimated Construction 

### Screen 3.826"

4.5" From: To: 

### 290' 305' Slot #: 

### 0.02 Material: 

### PCV Sch 80 Diameter ID: OD: From: To: 

### 4.5" 0' 290' ID: OD: 

### 3.826" Material: 

### PCV Sch 80 Location: 

### Red Hill BFSF
VWD

Azimuth: Time Driller: Sys_Samp_Code: 

### Drilling Protocol Tomas Date:

Top of grout: 

### 8"

Top of Screen: 

### 290.0'

Bore Hole TD: Well TD: 

### 305.0' 320.5' Notes: Top of Chips: 

### 181.0' 7/22/2005 Elevation:

Water Level: 

### 293.6' Pellets: Chips: Bags 

### n/a

Diameter Station ID: Station Name: 

### RHMW04

Sand Cement Grout B. Chips B. Pellets TD: 

### 320.5' Start: Finish: Date Finished: 

### 7/26/2005

Hole Diameter: 

### Casing 8" Drilling Method: 

### Air Rotary Inclination: 

### 90 ° CO.:



### Surface Casing Type:
Diameter: 

### Traffic Cover 12" Sand: Grout: Bags 

### 2 40 6 16 Monterey #3 Type Bags

Top of Pellets: 

### 265.5'

Top of Sand: 

### 282.5'Project Name: Red Hill Bulk Fuel Storage Facility, LTM 2009 Contract No: Location: Well Identifier: Drilling Technique: Air Rotary Coring Start Date: Bit Type/Size: Diamond Core /4.8-inches diam End Date: Filter Pack: 1 mm, Completion Type: Flush Mounted silica sand Riser Material: 2-inch, Schedule 80 PVC, flush threaded Annular Seal: Bentonite Chips/Pellets Screen Material: 2-inch, Schedule 80 PVC, 0.02 slot size Screened Interval: 78 ft to 93 ft below ground surface Northing Easting Elevation

22,461 510,317 31 Range between 7/14/2009 and 3/25/2010 Coordinates (m): 83.09 to 83.96 ft below top of casing NAD 83, HI State Plane, Zone 3, FIPS 5103 N47408-04-D-8514, T.O. 54 At Bend in Lower Tunnel Between Adit 3 and Adit 5 RHMW05 April 10, 2009 April 24, 2009

Groundwater Elevation

TEC Representative : Robert Whittier, P.G. Driller: Tomas Fernandez; Valley Well Drilling, Inc.