# Quarterly Groundwater Monitoring Report – Outside (Non-Tunnel) Wells

Red Hill Fuel Storage Facility

Pearl Harbor, Oahu, Hawaii

Latitude: 21 o 

## 22’15” N Longitude: 157 o 

## 53’33” W

HDOH Facility ID No. 9-102271
HDOH Release ID No. 99051, 010011, 020028

December 2009

Prepared by:

TEC Inc. 1001 Bishop St. Suite 1400 American Savings Bank Tower Honolulu, Hawaii 96813

Prepared for:

Commander Navy Region Hawaii Environmental Department, Code N45 850 Ticonderoga Street, Suite 110 Pearl Harbor, Hawaii 96860-5101Quarterly Groundwater Monitoring Report Red Hill Fuel Storage Facility December 2009

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## Table of Contents

Table of Contents

............................................................................................................................. i Executive Summary ......................................................................................................................... 1

1.0 Introduction .......................................................................................................................... 3

1.1 Project Objective ............................................................................................................. . 3

1.2 Previous Reports .............................................................................................................. 3

1.3 Background .................................................................................................................... .. 4

1.3.1 Site Description ......................................................................................................... 4

1.3.2 Facility Information .................................................................................................. 4

1.3.3 UST Information ....................................................................................................... 5

1.4 Regulatory Updates .......................................................................................................... 5

2.0 Sample Collection and Analyses .......................................................................................... 6

2.1 Monitoring Well Purging ................................................................................................. 6

2.2 Groundwater Sample Collection ...................................................................................... 6

2.3 Groundwater Sample Analyses ........................................................................................ 7

3.1 October 2009 Sample Analytical Results ......................................................................... 7

4.0 Summary and Conclusions ................................................................................................... 7

5.0 References .......................................................................................................................... 10

List of Tables Table 1 Monitoring Well Information ........................................................................................5 Table 2 Analytical Results for Quarterl y Groundwater Sampli ng (October 13, 2009) ..............8

List of Figures Figure 1 Groundwater Monitoring Well Locations ......................................................................9

List of Appendices Appendix A – Laboratory Analytical Reports Appendix B – Monitoring Well Construction LogsQuarterly Groundwater Monitoring Report Red Hill Fuel Storage Facility December 2009

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## Executive Summary

This quarterly groundwater monitoring report presents the results of groundwater sampling conducted on October 13, 2009 at locations surroundi ng the United States (US) Navy Bulk Fuel Storage Facility at Red Hill, Oahu, Hawaii (t he Facility). The sampling and reporting was conducted by TEC Inc. (TEC) for the Fleet and I ndustrial Supply Center (F ISC) at Pearl Harbor, Hawaii. This report is part of a series of qua rterly groundwater monitoring reports, supplemental to the groundwater reports for the groundwater m onitoring wells within the Facility, provided by the US Navy to the State of Hawaii Department of Health (HDOH) in accordance with HDOH’s release response requirements. Currently, there are 18 active and 2 inactive, 12.5 million gallon, field-constructed underground storage tanks (USTs) located at the Facility.

Background In 2002, the US Navy installed a groundwater monitoring well (cur rently named RHMW01) into the basal aquifer, directly down-gradient from the Facility, within th e lower access tunnel. Groundwater samples from this well indicated that petroleum from the Facility has migrated to the basal aquifer (AMEC, 2002). In 2005, the US Navy began quarterly monitoring of the aquifer to protect their down-grad ient drinking water resource a ssociated with the US Navy Well 2254-01. US Navy Well 2254-01 is located approxi mately 3,000 feet down-gradient from the Facility USTs and provides approximately 24% of the potable water to the Pearl Harbor Water System (PHWS).

By September 2005, the US Navy had installe d two more groundwater monitoring wells (RHMW02 and RHMW03) within the Facility US T system and a groundwater monitoring well within the US Navy Well 2254-01 infiltration ga llery (RHMW2254-01). Since 2005, these wells have been sampled quarterly for Total Petrol eum Hydrocarbons (TPH) quantified as DieselRange Organics (DRO) and Gasoline Range Organics (GRO), Vola tile Organic Compounds (VOCs), Polynuclear Aromatic Hydro carbons (PAHs), and dissolved lead.

In response to increasing concen trations of contaminants of pot ential concern at the groundwater monitoring wells within the faci lity (specifically RHMW02) dur ing 2008, plans were made to conduct quarterly sampling at the fo llowing monitoring well locations:

 RHMW04, up-gradient of the Facility;

 Oily Waste Disposal Facility monitoring well 01 (OWDFMW01), down-gradient of the Facility; and

 Halawa Deep Well 2253-03 (referred to as HDMW2253-03 in this report).

During the summer and fall of 2008, HDOH updated their Environm ental Action Levels (EALs), which resulted in significant changes to the acti on levels associated with methylnaphthalenes. The HDOH Drinking Water toxicity EAL for these compounds was 240  g/L. This concentration assumed that methylnaphthalenes were not human carcinogens. Once evidence emerged and was accepted by the US Environm ental Protection Agency (USEPA) that methylnaphthalenes are carcinogenic to humans, HDOH adopted more rigorous EALs of 4.7

 g/L for 1-methylnaphthalene and 24  g/L for 2-methylnaphthalene (HDOH, 2008).Quarterly Groundwater Monitoring Report Red Hill Fuel Storage Facility December 2009

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2 The HDOH Drinking Water EAL for naphthalene was also updated during this process. Previously, HDOH based their naphthalene EA L on USEPA Region 9 Preliminary Remediation
Goal (USEPA PRG) of 6.2  g/L, which is associated with a non-cancer Hazard Index of 1. In deference to the California Department of Pub lic Health’s Drinking Water Notification Levels, (HDOH, 2008) HDOH updated their naphtha lene drinking water EAL to 17  g/L.

Finally, the HDOH Drinking Water EAL for TPH-DRO was increased from 100  g/L to 210

 g/L, although the Groundwater Gross Cont amination EAL for TPH-DRO remains 100  g/L.

Current Results On October 13, 2009, three groundwater samples (i.e., RHMW04, OWDFMW01, and HDMW2253-03), along with the required quality cont rol samples (duplicate, matrix spike, and matrix spike duplicate) were collected for analysis. Samples were analyzed for TPH-DRO, TPH-GRO, VOCs, PAHs, and dissolved lead.

No HDOH Drinking Water EALs were exceeded and no contaminants of concern were detected above the laboratory met hod detection limit (MDL).

Conclusions and Recommendations Based on the October 2009 sampling event, there is no indication of contaminant migration from the Facility. Quarterly groundwater sampli ng for TPH-DRO, TPH-GRO, VOCs, PAHs, and

dissolved lead will continue at th e Facility until such time that data indicates that a different monitoring plan is warranted.Quarterly Groundwater Monitoring Report Red Hill Fuel Storage Facility December 2009

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## 1.0 Introduction

This report presents the results of the second groundwater sampling event, conducted in October 2009 at three groundwater monitoring wells (i.e., RHMW04, OWDFMW01, and HDMW2253- 03), surrounding the Red Hill Fuel Storage Facilit y, Oahu, Hawaii (hereafter referred to as “the Facility”). The Facility consists of 18 activ e and 2 inactive USTs operated by FISC, Pearl Harbor. This groundwater sampling and analys is event is supplemental to the quarterly groundwater sampling and analysis at groundwater monitoring wells with in the Facility (i.e., part of the groundwater monitoring program for the US T site in response to past UST releases, previous environmental investigatio ns, and recommendations from the HDOH).



### 1.1 Project Objective

This groundwater sampling project was performed to evaluate the presence of chemicals of potential concern in gr oundwater surrounding the Facility. The projec t was conducted to ensure the Navy remains in compliance with HDOH UST release response requirements. The groundwater sampling program followe d the procedures described in Red Hill Bulk Fuel Storage Facility Groundwater Protection Plan [TEC Inc. (TEC), 2008], also referred to as “the Plan”.

This groundwater sampling event was conducte d by TEC under US Navy Contract Number N47408-04-D-8514, Task Order No. 54, Amendment/Modification No. 01.



### 1.2 Previous Reports

This is a quarterly sampling event that is being conducted to supplement the quarterly groundwater sampling and analysis at groundwater monitoring wells within the Facility, which began in 2005. The following groundwater monito ring reports were previously submitted to the HDOH, for groundwater monitoring wells within the Facility:

1. Groundwater Sampling Report, First Quarter 2005 (submitted April 2005);

2. Groundwater Sampling Report, Second Quarter 2005 (submitted August 2005);

3. Groundwater Sampling Report, Third Quarter 2005 (submitted November 2005);

4. Groundwater Sampling Report, Fourth Quarter 2005 (submitted February 2006);

5. Groundwater Monitoring Results, July 2006 (submitted September 2006);

6. Groundwater Monitoring Results, December 2006 (submitted January 2007);

7. Groundwater Monitoring Results, March 2007 (submitted May 2007);

8. Groundwater Monitoring Results, June 2007 (submitted August 2007);

9. Groundwater Monitoring Results, September 2007 (submitted October 2007);

10. Groundwater Monitoring Results, January 2008 (submitted March 2008);

11. Groundwater Monitoring Results, April 2008 (submitted May 2008);

12. Groundwater Monitoring Results, July 2008 (submitted October 2008);Quarterly Groundwater Monitoring Report Red Hill Fuel Storage Facility December 2009

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4 13. Groundwater Monitoring Results, October and December 2008 (submitted February 2009);

14. Groundwater Monitoring Results, February 2009 (submitted May 2009);

15. Groundwater Monitoring Results, May 2009 (submitted July 2009); and

16. Groundwater Monitoring Results, July 2009 (submitted September 2009).



### 1.3 Background

The following sections provide a description of th e site and information on the Facility and USTs.

1.3.1 Site Description
The Facility is located in Halawa Heights on Oahu, Hawaii. Land adjacen t to the north of the Facility is occupied by Halawa Correctional Faci lity and private businesses. Land to the south and west of the Facility includes the Coast Guar d Reservation. Moanalua Valley is located east of the Facility (Dawson, 2006).

The Navy Public Works Department operates a pot able water infiltratio n tunnel approximately 1,550 feet hydraulically down-gradient from th e Facility (Dawson, 2006). The US Navy Well 2254-01 is located approximately 3,000 feet down-grad ient (west) of the Facility and provides approximately 24% of the potable water to th e Pearl Harbor Water System, which serves approximately 52,200 military consumers (TEC, 2008).

1.3.2 Facility Information

The Facility consists of 18 act ive and 2 inactive USTs operate d by Navy FISC Pearl Harbor. Each UST has a capacity of 12.5 million gallons. The Facility is located approximately 100 feet above the basal aquifer (Dawson, 2006).

In 2002, the US Navy installed a groundwater monitoring well (cur rently named RHMW01) into the basal aquifer, directly down-gradient from the Facility, within th e lower access tunnel. Groundwater samples from this well indicated that petroleum from the Facility has migrated to the basal aquifer (AMEC, 2002). In 2005, the US Navy began quarterly monitoring of the aquifer to protect their down-grad ient drinking water resource a ssociated with the US Navy Well 2254-01. US Navy Well 2254-01 is located approxi mately 3,000 feet down-gradient from the Facility USTs and provides approximately 24 % of the potable water to the PHWS.

By September 2005, the US Navy had installe d two more groundwater monitoring wells (RHMW02 and RHMW03) within the Facil ity UST system, a background groundwater monitoring well (RHMW04) up-gradient from the Facility adjacent to the US Navy Firing Range, and a groundwater monitoring well within the US Navy Well 2254-01 infiltration gallery (RHMW2254-01). Since 2005, RHMW01, RH MW02, RHMW03, and RHMW2254-01 have been sampled quarterly for TPH-DRO, TP H-GRO, VOCs, PAHs, and dissolved lead.

Due to increasing concentrations of contamin ants of potential con cern at the groundwater monitoring wells within the Fa cility (specifically RHMW02) during 2008, response measures were warranted. In April 2009, another groundwa ter monitoring well (RHMW05) was installedQuarterly Groundwater Monitoring Report Red Hill Fuel Storage Facility December 2009

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5 down-gradient from the USTs, within the lower access tunnel between RHMW01 and RHMW2254-01. It was installed to identify the extent of contaminant migration down-gradient

before it reaches the infiltra tion gallery at RHMW2254-01.

Additionally, plans were made to sample th ree monitoring wells surrounding the Facility, RHMW04, OWDFMW01, and HDMW2253-03. RHMW04 is adjacent to the US Navy Firing Range, geographically up-gradient of the USTs. It was installe d to provide geochemistry for water moving through the basal aquifer beneath the Facility. OWDFMW01 (originally known as MW08) was installed into the basal aquifer in 1998 for a Phase II Remedial Investigation/ Feasibility Study for the Red Hill Oily Waste Dispos al Facility (Earth Tech Inc., 2000). It is located geographically down-gradient of the USTs and US Navy Well 2254-01. HDMW2253- 03 is controlled by the State of Hawaii Commission on Water Re source Management. It is located cross-gradient of the Facility, between the Facility and the municipal drinking water supply well run by the City and County of H onolulu Board of Water Supply (Halawa Shaft pumping station 2354-01).

Table 1 summarizes basic gr oundwater monitoring well information, Figure 1 shows groundwater monitoring well locatio ns, and Appendix B includes th e well construction logs for

RHMW04 and OWDFMW01.

Table 1. Monitoring Well Information

Groundwater Well TOC Elevation (ft msl) DTW (ft) TD (ft)

RHMW04 313.03 293 320

OWDFMW01 138.94 120 142.8

HDMW2253-03 225 210 1,575

Notes:

DTW - Distance to water

TD - Total depth of well

TOC - Top of casing ft – Feet

ft msl - Feet from mean sea level

1.3.3 UST Information

The USTs were constructed in th e early 1940s. The tanks were c onstructed of steel and currently contain Jet Propulsion (JP)–5 fuel and F-76 (diesel marine fuel ). Previously, se veral tanks stored Navy Special Fuel Oil, Navy Distillate, aviati on gasoline, and motor gasoline. Each tank measures approximately 245 feet in height and 100 feet in diameter. The upper domes of the tanks lie at depths varying between approxima tely 100 feet and 200 feet below the existing ground surface (TEC, 2006).



### 1.4 Regulatory Updates

During the summer and fall of 2008, HDOH updated their EALs, which resulted in significant changes to the action levels associated with me thylnaphthalenes. The drinking water toxicity EAL for these compounds was 240  g/L. This concentration pres umed that methylnaphthalenes were non-carcinogenic. Evidence th at they are human carcinogens has now been accepted by the US Environmental Protection Agency (USEPA). As a result, HDOH adopted more rigorousQuarterly Groundwater Monitoring Report Red Hill Fuel Storage Facility December 2009

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6 EALs of 4.7  g/L for 1-methylnaphthalene and 24  g/L for 2-methylnaphthalene, corresponding to a residential tap water scenario, an d a 1 in a million cancer risk (HDOH, 2008).

The drinking water EAL for naphthalene has also been updated during this process. Previously, HDOH based their naphthalene EAL on USEPA Region 9 Preliminary Remediation Goal
(USEPA PRG) of 6.2  g/L, which is associated with a non-cancer Hazard Index of 1. HDOH has updated their naphthalen e drinking water EAL to 17  g/L, in deference to the California Department of Public Health’s Drinking Wate r Notification Levels, a Hazard Index of 2.7 (HDOH, 2008).

Finally, the HDOH Drinking Water EAL for TPH-DRO was increased from 100  g/L to 210

 g/L, although the HDOH Groundwat er Gross Contamination EAL for TPH-DRO remains 100

 g/L.



## 2.0 Sample Collection and Analyses

Field activities relating to gr oundwater sample collection were conducted on October 13, 2009. Groundwater samples were collected from three monitoring wells, RHMW04, OWDFMW01, and HDMW2253-03. Sampling and analysis were conducted according to Red Hill Bulk Fuel Storage Facility Groundwater Protection Plan (TEC, 2008). A total of six samples were

collected as follows:

 one environmental sample from RHMW04, OWDFMW01, and HDMW2253-03;

 one duplicate sample from RHMW04 (sampled as RHMWA01 and reported as RHMW04D); and

 one matrix spike and matrix sp ike duplicate from OWDFMW01.



### 2.1 Monitoring Well Purging

RHMW04 and OWDFMW01 were purged and samp led using a dedicated pump system. Well purging was considered complete when no less th an three successive water quality parameter measurements had stabilized within approximately 10 percent. Field parameters were measured at regular intervals du ring well purging and included pH, temperature, spec ific conductivity, dissolved oxygen, and turbidity. Due to the we ll construction characteristics of HDMW2253-03, the well was not purged prior to sampling, but fiel d parameters were recorded. Rather than purging, a grab sample was collected at a depth below the solid casing (which extends about 50 feet below the water table) and with in the open-holed portion of the well.



### 2.2 Groundwater Sample Collection

Immediately following purging, RHMW04 and OWDF MW01 were sampled directly from their dedicated bladder pump system. HDMW2253-03 was sampled using a disposable bailer designed to collect samples at desired depths. Samples were placed into sampling containers with appropriate preservatives [i .e., hydrochloric acid (HCl) for vol atile organic analysis, nitric acid (HNO 3 ) for dissolved lead]. Dissolved lead samples were filtered in the field and placed in preserved bottles. Sample containers were labeled with the date, sample identification number, type of analysis, and sampler’s name. The cont ainers were placed on ice in sample coolers and transported under chain-of-custody procedures to the certified laboratory for analysis.Quarterly Groundwater Monitoring Report Red Hill Fuel Storage Facility December 2009

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### 2.3 Groundwater Sample Analyses

Groundwater samples were analyzed by SGS Environm ental Service, Inc. in Anchorage, Alaska for TPH-DRO and TPH-GRO by EPA Method 8015B, VOCs by EPA Method 8260B, PAHs by EPA Method 8270C SIM, and dissolved lead by EPA Method 6020.



## 3.0 Groundwater Sample Analytical Results

This section provides a summary of analytical results for groundwater samples collected from three monitoring wells, RHMW04, OWDFMW 01, and HDMW2253-03. Duplicate sample results from monitoring well RHMW04 are re ported in this document as RHMW04D. A summary of groundwater analytical results for TPH-DRO and TPH-GR O, VOCs, PAHs, and dissolved lead is included in Table 2. Complete analytical laboratory reports are provided in Appendix A.



### 3.1 October 2009 Sample Analytical Results

All groundwater samples were analyzed for TP H-DRO, TPH-GRO, VOCs, PAHs, and dissolved lead. The results for each groundwater monitoring well are discussed below.

RHMW04 No potential chemical of concern was detected above the laboratory MDLs at RHMW04 (Table 2).

OWDFMW01 No potential chemical of concern was detect ed above the laborator y MDLs at OWDFMW01 (Table 2).

HDMW2253-03 No potential chemical of concern was detect ed above the laborator y MDLs at HDMW2253-03 (Table 2).



## 4.0 Summary and Conclusions

Summary No potential chemicals of concern were detect ed above the laborator y MDLs, HDOH Drinking Water EALs, or Gross Contamination EALs at RHMW04, OWDFMW01, and HDMW2253-03.

Conclusions/Recommendations Based on the October 2009 sampling event, there is no indication of contaminant migration from the Facility.Table 2. Analytical Results for Quarterly Groundwater Monitoring Release Response Report (October 13,2009)Red Hill Fuel Storage Facility, Pearl Harbor, HawaiiResult Q MDL RL Result Q MDL RL Result Q MDL RL Result Q MDL RLTPH as DIESEL RANGE ORGANICS210 100 ND U 185 494 ND U 167 444 ND U 169 452 ND U 174 465TPH as GASOLINE RANGE ORGANICS100 100 ND U 30 100 ND U 30 100 ND U 30 100 ND U 30 1001-METHYLNAPHTHALENE4.7 10 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.05622-METHYLNAPHTHALENE24 10 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562ACENAPHTHENE370 20 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562ACENAPHTHYLENE240 2000 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562ANTHRACENE1800 22 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562BENZO(a)ANTHRACENE0.092 4.7 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562BENZO(a)PYRENE0.2 0.81 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562BENZO(b)FLUORANTHENE0.092 0.75 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562BENZO(g,h,i)PERYLENE1500 0.13 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562BENZO(k)FLUORANTHENE0.92 0.4 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562CHRYSENE9.2 1 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562DIBENZ(a,h)ANTHRACENE0.0092 0.52 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562FLUORANTHENE1500 130 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562FLUORENE240 950 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562INDENO(1,2,3-c,d)PYRENE0.092 0.095 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562NAPHTHALENE17 21 ND U 0.035 0.113 ND U 0.0346 0.112ND U 0.0356 0.115 ND U 0.0348 0.112PHENANTHRENE240 410 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.0562PYRENE180 68 ND U 0.0169 0.0565 ND U 0.0168 0.0559 ND U 0.0172 0.0575 ND U 0.0169 0.05621,1,1,2-TETRACHLOROETHANE0.52 50000 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.51,1,1-TRICHLOROETHANE200 970 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 11,1,2,2-TETRACHLOROETHANE0.067 500 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.51,1,2-TRICHLOROETHANE5 50000 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 11,1-DICHLOROETHANE2.4 50000 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 11,2,3-TRICHLOROPROPANE (TCP)0.6 50000 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 11,2,4-TRICHLOROBENZENE70 3000 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 11,2-DIBROMO-3-CHLOROPROPANE (DBCP)0.04 10 ND U 0.62 2 ND U 0.62 2 ND U 0.62 2 ND U 0.62 21,2-DIBROMOETHANE (EDB)0.0065 50000 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 11,2-DICHLOROBENZENE600 10 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 11,2-DICHLOROETHANE0.15 7000 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.51,2-DICHLOROPROPANE5 10 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 11,3-DICHLOROBENZENE180 50000 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 11,4-DICHLOROBENZENE75 5 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5OWDFMW018015B (Petroleum)8270C SIM(PAHs)October 13, 2009MethodHDOH Drinking WaterEALs1for Human ToxicityUG/LHDOH GroundwaterGross ContaminationEALs2UG/LChemicalHDMW2253-03UG/LOctober 13, 2009 October 13, 2009 October 13, 2009UG/LRHMW04UG/L UG/LRHMW04D,ACETONE22000 20000 ND U 3.1 10 ND U 3.1 10 ND U 3.1 10 ND U 3.1 10BENZENE5 170 ND U 0.12 0.4 ND U 0.12 0.4 ND U 0.12 0.4 ND U 0.12 0.4BROMODICHLOROMETHANE0.22 50000 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5BROMOFORM100 510 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1BROMOMETHANE8.7 50000 ND U 0.94 3 ND U 0.94 3 ND U 0.94 3 ND U 0.94 3CARBON TETRACHLORIDE5 520 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1CHLOROBENZENE100 50 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5CHLOROETHANE8600 16 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1CHLOROFORM70 2400 ND U 0.3 1 ND U 0.3 1 ND U 0.3 1 ND U 0.3 1CHLOROMETHANE1.8 50000 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1cis-1,2-DICHLOROETHYLENE70 50000 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1cis-1,3-DICHLOROPROPENE0.43 50000 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5DIBROMOCHLOROMETHANE0.16 50000 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5 ND U 0.15 0.5ETHYLBENZENE700 30 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1HEXACHLOROBUTADIENE0.86 6 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1M,P-XYLENE (SUM OF ISOMERS)10000 20 ND U 0.62 2 ND U 0.62 2 ND U 0.62 2 ND U 0.62 2METHYL ETHYL KETONE (2-BUTANONE)7100 8400 ND U 3.1 10 ND U 3.1 10 ND U 3.1 10 ND U 3.1 10METHYL ISOBUTYL KETONE (4-METHYL-2-PENTANONE)2000 1300 ND U 3.1 10 ND U 3.1 10 ND U 3.1 10 ND U 3.1 10METHYLENE CHLORIDE4.8 9100 ND U 1 5 ND U 1 5 ND U 1 5 ND U 1 5NAPHTHALENE17 21 ND U 0.62 2 ND U 0.62 2 ND U 0.62 2 ND U 0.62 2STYRENE100 10 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1TETRACHLOROETHYLENE(PCE)5 170 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1TOLUENE1000 40 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1trans-1,2-DICHLOROETHENE100 260 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1TRICHLOROETHYLENE (TCE)5 310 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1VINYL CHLORIDE2 3400 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 16020LEAD15 50000 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1 ND U 0.31 1PAHs - Polynuclear aromatic hydrocarbonsMDL - Method detection limitVOCs - Volatile organic compoundsRL - Reporting limitUG/L - Micrograms per LiterTPH - Total petroleum hydrocarbonsQ - Data qualifierND - Indicates that the compound was not detected above the stated method detection limit-Result exceeds one or both HDOH EALsU- Indicates that the compound was analyzed for,but not detected at or above the stated limit128260B(VOCs)Final Drinking Water Action Levels for Human Toxicity, Table D-3a,Screening for Environmental Concerns at Sites withContaminated Soil and Groundwater, HDOH, 2009Groundwater Gross Contamination Action Levels, Table G-1,Screening for Environmental Concerns at Sites withContaminated Soil and Groundwater, HDOH, 2009200Page 1 of 1Figure1GroundwaterMonitoringWellLocationsdilllSiliReHFuetorageFactyOahu,HawaiiQuarterly Groundwater Monitoring Report Red Hill Fuel Storage Facility December 2009

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## 5.0 References

AMEC. Red Hill Bulk Fuel Storage Facility Investigation Report , Prepared for NAVFAC Pacific, August 2002.

Dawson Group, Inc. Fourth Quarter 2005 Groundwater Sam pling Report, Red Hill Fuel Storage Facility, Hawaii. February 2006.

Earth Tech, Inc. Remedial Investigation Phase II, Volume I, Technical Report, Red Hill Oily Waste Disposal Facility, Halawa, Oahu, Hawaii . September 2000.

Hawaii Administrative Rules, Titl e 11, Chapter 281, Subchapter 7.

HDOH. Screening for Environmental Concerns at Sites with Contaminated Soil and Groundwater, Summary Lookup Tables. March 2009.

HDOH. Use of May 2005 Environmental Action Levels (“EALs”) at Leaking Underground Storage Tank Sites . Memo. July 2005.

HDOH. Evaluation of Environmental Hazards at Sites with Contaminated Soil and

Groundwater . Summer 2008 (updated October 2008).

TEC, Inc. Red Hill Bulk Fuel Storage Facility, Fi nal – Addendum Planning Documents, Pearl
Harbor, Hawaii. May 2006.

TEC, Inc. Red Hill Bulk Fuel Storage Facility, Final Groundwater Protection Plan, Pearl
Harbor, Hawaii. January 2008.

## Appendix A Laboratory Analytical Reports

## Appendix B Monitoring Well Construction Logs