FINAL

Preliminary Assessment Report

E.J. Garn Aviation Complex, Utah 

Perfluorooctanesulfonic Acid (PFOS) and Perfluorooctanoic 

Acid (PFOA) Impacted Sites

ARNG Installations, Nationwide

July 2020

Prepared for:

Army National Guard Bureau

111 S. George Mason Drive

Arlington, VA 22204

UNCLASSIFIED
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

i

Table of Contents

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

1. Introduction ........................................................................................................................4

1.1 Authority and Purpose ..............................................................................................4

1.2 Preliminary Assessment Methods .............................................................................4

1.3 Report Organization ..................................................................................................5

1.4 Facility Location and Description...............................................................................5

1.5 Facility Environmental Setting ...................................................................................5

Soil .................................................................................................................6

Geology .........................................................................................................6

Hydrogeology .................................................................................................6

Hydrology .......................................................................................................7

Climate ...........................................................................................................8

Current and Future Land Use .........................................................................8

2. Fire Training Areas ...........................................................................................................12

2.1 Hangar/Ramp Area .................................................................................................12

3. Non-Fire Training Areas ...................................................................................................14

3.1 Building 00001 ........................................................................................................14

3.2 Building 00002 ........................................................................................................14

3.3 Building 00004 ........................................................................................................15

3.4 Building 00010 ........................................................................................................15

4. Emergency Response Areas ............................................................................................17

5. Adjacent Sources .............................................................................................................19

5.1 Emergency Response Area ....................................................................................19

5.2 Private Aviation Companies at South Valley Regional Airport ..................................19

6. Preliminary Conceptual Site Model ..................................................................................21

6.1 AOI 1: Building 00001 .............................................................................................21

6.2 AOI 2: Hangar/Ramp Area ......................................................................................21

6.3 AOI 3: Building 00003 Dumpster Fire .....................................................................22

7. Conclusions .....................................................................................................................28

7.1 Findings ..................................................................................................................28

7.2 Uncertainties ...........................................................................................................28

7.3 Potential Future Actions ..........................................................................................29

References ...............................................................................................................................32
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

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Tables

Table ES-1 AOIs at E.J. Garn Aviation Complex

Table 7-1 AOIs at E.J. Garn Aviation Complex

Table 7-2 Uncertainties within the PA

Table 7-3 PA Findings Summary

Figures

Figure ES-1 Summary of Findings

Figure ES-2 Preliminary Conceptual Site Model E.J. Garn Aviation Complex

Figure 1-1 Facility Location

Figure 1-2 Groundwater Features

Figure 1-3 Surface Water Features

Figure 2-1 Fire Training Area

Figure 3-1 Non-Fire Training Areas

Figure 4-1 Emergency Response Area

Figure 5-1 Adjacent Sources

Figure 6-1 Area of Interest

Figure 6-2 Preliminary Conceptual Site Model AOI 1

Figure 6-3 Preliminary Conceptual Site Model AOI 2

Figure 6-4 Preliminary Conceptual Site Model AOI 3

Figure 7-1 Summary of Findings

Appendices

Appendix A Data Resources

Appendix B Preliminary Assessment Documentation

B.1 Interview Records

B.2 Visual Site Inspection Checklists

B.3 Conceptual Site Model Information

Appendix C Photographic Log
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

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Acronyms and Abbreviations

%

AASF

percent

Army Aviation Support Facility

AECOM AECOM Technical Services, Inc.

AFFF aqueous film forming foam

amsl above mean sea level

AOI area of interest

ARNG Army National Guard

bgs below ground surface

CERCLA Comprehensive Environmental Response, Compensation, and Liability Act

CSM conceptual site model

°F degrees Fahrenheit

EDRTM Environmental Data Resources, Inc.TM

ELU Equivalent Livestock Units

ft feet

FTA fire training area

FBO Fixed Base Operator

HA Health Advisory

HAZMAT Hazardous Materials

NCO

NOAA

Non-Commissioned Officer

National Oceanic and Atmospheric Administration

PA Preliminary Assessment

PFAS per- and poly-fluoroalkyl substances

PFOA perfluorooctanoic acid

PFOS perfluorooctanesulfonic acid

ppt parts per trillion

SI Site Inspection

UCMR3 Third Unregulated Contaminant Monitoring Rule

UDWR Utah Division of Water Rights

US United States

USACE United States Army Corps of Engineers

USEPA United States Environmental Protection Agency

USGS

UTARNG

United States Geological Survey

Utah Army National Guard

VSI visual site inspection
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

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Executive Summary

The Army National Guard (ARNG) is performing Preliminary Assessments (PAs) and Site

Inspections (SIs) for Perfluorooctanesulfonic acid (PFOS) and Perfluorooctanoic acid (PFOA)

Impacted Sites at ARNG Facilities Nationwide. A PA for per- and polyfluoroalkyl substances

(PFAS)-containing materials was completed for E.J. Garn Aviation Complex (the “facility”) at West

Jordan, Utah, to assess potential PFAS release areas and exposure pathways to possible

receptors. The performance of this PA included the following tasks:

· Reviewed available administrative record documents and Environmental Data Resources,

Inc. (EDR)TM report packages to obtain information relevant to potential PFAS releases, such

as: drinking water well locations, historical aerial photographs, Sanborn maps, and

environmental compliance actions in the area surrounding the facility; 

· Conducted a 1-day site visit on 16 July 2019 and completed visual site inspections at

locations where PFAS-containing materials were suspected of being stored, used, or

disposed;

· Interviewed current facility personnel during the site visit including the Utah ARNG (UTARNG)

Safety Non-Commissioned Officer /Hazardous Materials Training Manager, the UTANRG

Environmental Manager, and the UTARNG Facilities Manager;

· Identified an Area of Interest (AOI) and developed a preliminary conceptual site model (CSM)

to summarize potential source-pathway-receptor linkages of potential PFAS in soil,

groundwater, surface water, and sediment for the AOI.

Three AOIs related to potential PFAS releases was identified at the E.J. Garn Aviation Complex

during the PA. The AOIs are shown on Figure 6-1 and described in Table ES-1 below:

Table ES-1: AOIs at E.J. Garn Aviation Complex

Area of Interest Name Used by Release Dates

AOI 1 Building 00001 UTARNG Prior to 2009

AOI 2 Hangar/Ramp

Area UTARNG Since at least 1991 untilapproximately 2016.

AOI 3 Building 00003

Dumpster Fire UTARNG 1997

Based on information obtained during the PA, there is potential for exposure to PFAS

contamination in surface soil to site workers, construction workers, and trespassers via ingestion

and inhalation; subsurface soil to construction workers via ingestion; surface water and sediments

to off-facility residents and off-facility recreational users via ingestion; and groundwater to offfacility residents via ingestion. The preliminary CSM for the E.J. Garn Aviation Complex is shown

on Figures ES-2. Several off-facility municipal, domestic, and stock water wells have been

identified in the vicinity of the facility (Figure 1-2). The third Unregulated Contaminant Monitoring

Rule (UCMR3) data were reviewed to identify nearby sites which exceed USEPA’s Health

Advisory for PFAS; however, none were identified (USEPA, 2017). PFAS analyses performed in

2016 had method detection limits that were higher than currently achievable. Thus, it is possible

that low concentrations of PFAS were not detected during the UCMR3 but might be detected if

analyzed today.
Sedimentation

Basin

Barneys Creek

Utah

Lake

Distributing

Canal

Water Supply

1989 Civilian

Crash

Runways

AOI 2

AOI 1

AOI 3

Building 00003

Catch Basins

Building 00002

Building 00004

1997 Dumpster 

Fire

Fire Training Area

Fire Truck Bay/

Foam Storage

Wash Down Area

Tri-Max Training/CFR

Nozzle Testing Area

Dry Well

Former Foam

Storage Area Building 00010

Building 00001

AOI 2

AOI 1

AOI 3

0 500 1,000 2,000

Feet

­ Figure ES-1

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C:\Users\stankevichm\OneDrive - AECOM Directory\ARNG_PFAS_GIS_60552172\MXDs\UT\EJ_Garn_AASF_Figures\EJ_Garn_PA_Figures\Fig_ES-1_EJ_Garn_AASF_Summary.mxd

Summary of Findings

12420 Milestone Center Drive

Germantown, MD 20876

Area of Interest

Potential PFAS Release

No Suspected Release

Facility Boundary

Water Body

River/Stream

Canal/Ditch

0 150 300 600

Feet

2
Media

SOURCE PATHWAY RE

E.J. Garn 

Aviation 

Complex

Potential AFFF 

release

PFAS on 

ground 

surface and 

subsurface 

dry well

Human 

activities

Precipitation/ 

run-off

Leaching/ 

infiltration

Airborne soil 

particulate

Surface soil 

at AOI

Surface 

water/ 

sediment

Subsurface 

soil

Shallow 

groundwater

Source Release Mechanism Media Transport and Migration Media Exposure Routes

Inhalation of 

dust

Ingestion

Ingestion

Ingestion

Ingestion

Hum

C

Flow-chart continuesPartial/ possible flowFlow-chart stopsIncomplete pathwayPossible complete pathwayComplete pathway

/ 

Site 

Worker

Cons

W

Site 

Worker

Cons

W

/ 

/ 

/ / 

LEGEND

Figure E

Preliminary Concep

E.J. Garn Aviation Comp

Potential 

Off-Facility 

Source Not 

under 

Control of 

ARNG

Notes:1. The resident receptor refers to an off-site resident.2. Current risk practice suggests the exposure pathway for dermal contact is insignificant compared to ingestion, but supporting data is sparse and continues to be studied. 
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

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1. Introduction

1.1 Authority and Purpose

The Army National Guard (ARNG) G9 is the lead agency in performing Preliminary Assessments

(PAs) and Site Inspections (SIs) for Perfluorooctanesulfonic acid (PFOS) and Perfluorooctanoic

acid (PFOA) at Impacted Sites at ARNG Facilities Nationwide. This work is supported by the

United States (US) Army Corps of Engineers (USACE) Baltimore District and their contractor

AECOM Technical Services, Inc. (AECOM) under Contract Number W912DR-12-D-0014, Task

Order W912DR17F0192, issued 11 August 2017.

The ARNG is assessing potential effects on human health related to processes at their facilities

that used per- and poly-fluoroalkyl substances (PFAS) (a suite of related chemicals), primarily

releases of aqueous film forming foam (AFFF) (used for safety mitigation and emergency

response efforts) although other sources of PFAS are possible. In addition, the ARNG is

assessing businesses or operations adjacent to the ARNG facility (not under the control of ARNG)

that could potentially be responsible for a PFAS release.

PFAS are classified as emerging environmental contaminants that are garnering increasing

regulatory interest due to their potential risks to human health and the environment. PFAS

formulations contain highly diverse mixtures of compounds. Thus, the fate of these PFAS

compounds in the environment will vary. The regulatory framework at both federal and state levels

continues to evolve. In May 2016, the US Environmental Protection Agency (USEPA) issued

Drinking Water Health Advisories (HAs) of 70 parts per trillion (ppt) for individual and combined

PFOA and PFOS in drinking water, but there are currently no Utah standards for PFAS in drinking

water.

This report presents findings of a PA for PFAS-containing materials at the Utah ARNG (UTARNG)

E.J. Garn Aviation Complex (the “facility”), at West Jordan, Utah, in accordance with the

Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as

amended, the National Oil and Hazardous Substances Pollution Contingency Plan (40 Code of

Federal Regulations Part 300), and Army requirements and guidance.

This PA documents the known fire training areas (FTAs) as well as additional locations where

PFAS may have been released to the environment at the facility. The term PFAS will be used

throughout this report to encompass all PFAS chemicals being evaluated, including PFOS and

PFOA, which are key components AFFF.

1.2 Preliminary Assessment Methods

The performance of this PA included the following tasks:

· Reviewed available administrative record documents and Environmental Data Resources,

Inc. (EDR)TM report packages to obtain information relevant to potential PFAS releases, such

as: drinking water well locations, historical aerial photographs, Sanborn maps, and

environmental compliance actions in the area surrounding the facility; 

· Conducted a 1-day site visit on 16 July 2019 and completed visual site inspections (VSIs) at

locations where PFAS-containing materials were suspected of being stored, used, or

disposed;

· Interviewed current facility personnel during the site visit including the Utah ARNG (UTARNG)

Safety Non-Commissioned Officer (NCO)/Hazardous Materials (HAZMAT) Training Manager,

the UANRG Environmental Manager, and the UTARNG Facilities Manager;
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· Identified Areas of Interest (AOIs) and developed a preliminary conceptual site model (CSM)

to summarize potential source-pathway-receptor linkages of potential PFAS in soil,

groundwater, surface water, and sediment for each AOI.

1.3 Report Organization

This report has been prepared in accordance with the USEPA Guidance for Performing

Preliminary Assessments under CERCLA (USEPA, 1991). The report sections and descriptions

of each are:

· Section 1 – Introduction: identifies the project purpose and authority and describes the

facility location, environmental setting, and methods used to complete the PA.

· Section 2 – Fire Training Areas: describes the FTAs at the facility identified during the site

visit.

· Section 3 – Non-Fire Training Areas: describes other locations of potential PFAS releases

at the facility identified during the site visit.

· Section 4 – Emergency Response Areas: describes areas of potential PFAS release at the

facility, specifically in response to emergency situations.

· Section 5 – Adjacent Sources: describes sources of potential PFAS release adjacent to the

facility that are not under the control of ARNG.

· Section 6 – Preliminary Conceptual Site Model: describes the pathways of PFAS transport

and receptors at each AOI.

· Section 7 – Conclusions: summarizes the data findings and presents the conclusions of the

PA.

· Section 8 – References: provides the references used to develop this document.

· Appendix A – Data Resources

· Appendix B – Preliminary Assessment Documentation

· Appendix C – Photographic Log

1.4 Facility Location and Description

The E.J. Garn Aviation Complex is located at 7563 South 4570 West, West Jordan, Utah, 84084,

within Salt Lake County. The facility was established in 1989 and serves as the base operations

for military helicopter maintenance and support (Kleinfelder, 2018). The facility consists of two

main ARNG areas divided by Airport Road, which runs through the middle of the facility; the Army

Facility Maintenance Support-2 (Building 00003) is located on the west side, and the Army

Aviation Support Facility (AASF) is located on the east side.

West Jordan is a suburb of Salt Lake City, bordered on the west by the Oquirrh Mountains and

on the east by the Jordan River. The facility borders the South Valley Regional Airport to the east

and is situated west of Interstate 15 (Figure 1-1). The facility is about 9.3 miles southwest of Salt

Lake City.

1.5 Facility Environmental Setting

The E.J. Garn Aviation Complex occupies approximately 57 acres, approximately 77 percent (%)

of which is composed of impervious surfaces. The areas surrounding the facility are primarily the
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railroad to the west, and general aviation facilities at the South Valley Regional Airport to the north 

and east. Other surrounding areas include self-storage and manufacturing companies to the 

northwest, a Utah Department of Transportation facility to the southwest, and a water tank facility 

for the city of West Jordan to the east. The facility sits at an elevation of 4,620 feet (ft) above 

mean sea level (amsl), with a slight general topographic gradient to the east. There are no 

significant natural topographic features immediately surrounding the facility. 

To the west of the city is the railroad, and at the southwest of the facility is a UDOT transportation 

facility.

Soil

The soils at the facility generally consist of Hans and Red Rock well-drained silt loam with very 

slow infiltration rates. Soils are present to a shallow depth above an impervious layer of bedrock. 

The fine-grained soils are relatively uniform, with clay and water content slightly increasing at 

depths greater than 7 ft below ground surface (bgs) (USDA, 2019). The soils are primarily derived 

from alluvial deposits from historic Lake Bonneville (Marine and Price, 1964). 

Geology

The E.J. Garn Aviation Complex is located within the Jordan Valley, at the eastern margin of the 

Basin and Range physiographic province. The valley is bounded on the east by the Wasatch 

Range, on the south by the Traverse Mountains, on the west by the Oquirrh Mountains, and on 

the north by the Great Salt Lake and a low east-west salient of the Wasatch Range (Marine and 

Price, 1964). At the facility, Holocene-aged alluvium and Pleistocene-aged silt and clay deposits 

of the regressive Phase of Lake Bonneville overlie volcanic and sedimentary rocks of the Salt 

Lake Formation of Tertiary age, which were largely of mud-rock flow origin (Marine and Price, 

1964). Geologic units are depicted on Figure 1-2. 

The uppermost geologic units at the facility are comprised of massive to thinly bedded silt and 

clay deposits (7-16 ft), with boulder to pebble gravel, sand, silt, and clay deposited in channels 

and flood plain of streams (USDA, 2019). The Jordan Narrows unit of the Salt Lake Formation 

commonly underlies the alluvial or lacustrine material and consists of fine-grained sediments with 

a few thin gravel lenses, principally of andesite. The fine-grained sediments are mostly volcanic 

tuff, freshwater limestone, and clay, and can be 300 to 2,000 ft thick (Marine and Price, 1964). 

Hydrogeology

The complex pattern of sediment deposition in the Jordan Valley resulted in a widely varying 

groundwater reservoir. Specific aquifers are generally not distinguishable over large areas, and 

they are underlain, overlain, and graded into beds with lesser permeability. The Jordan Valley has 

been divided into six groundwater districts based on geology and hydrology. The facility is in the 

West Slope District, within the North Pediment subdistrict (Marine and Price, 1964). 

In the North Pediment subdistrict, groundwater wells obtain water that is perched on the relatively 

impermeable beds of the Jordan Narrows Unit. Most of the ground water in the subdistrict is 

confined in the Jordan Narrows unit or in the overlying Pleistocene or late Tertiary gravel. Shallow 

wells screened in gravel layers, especially those in the lower part of the subdistrict near the facility 

flow at the land surface. Deep wells (deeper than 150 ft) set within the Jordan Narrows unit, 

however, generally do not flow. Much of the recharge to the gravel beds comes from irrigation 

water obtained from surface sources (Marine and Price, 1964).

According to Marine and Price, groundwater in the North Pediment subdistrict generally moves 

toward the northeast. Based on the topography and water bodies in the vicinity of the facility, it is 

assumed groundwater moves from west to east, towards the Jordan River. 
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The EDRTM database search returned a number of groundwater wells in the vicinity of the facility. 

The Utah Division of Water Rights (UDWR) interactive map was reviewed to determine the status 

of each reported water right. Active points of diversion located down or cross-gradient to the 

facility are described below. 

· Water Right 59-2123 is an active point of diversion located approximately 1,750 ft 

southeast and cross-gradient of the facility. The well is an underground water well used 

for stock water, with a beneficial use amount of 400 Equivalent Livestock Units (ELUs). 

· Water Rights 59-1615 and 59-5157 are tied to an active point of diversion located 

approximately 2,400 ft south and cross-gradient of the facility. The well (also known as 

Steadman Well) is an inactive underground water well used for municipal water for the 

City of West Jordan, limited to the use of 750 families if it became active. 

· Water Right 59-2122 is an active point of diversion water well located approximately 2,700 

ft southeast and cross-gradient of the facility. The well is an underground water well used 

for the domestic water supply for a single family. 

· Water Right 59-2733 is an active point of diversion located approximately 3,800 ft east 

and downgradient of the facility. The well is an underground water well used for stock 

water, with a beneficial use amount of 50 ELUs to be used for 45 cattle and 5 horses. 

During the site visit, it was reported that a groundwater well serving the City of West Jordan was 

located approximately 1,300 ft east and downgradient of the facility, near the water tanks, 

identified as Water Right 59-2024 in the EDRTM. According to the UDWR, this well was formerly 

used for stock water since 1886; however, in 1976, the water right (59-2024) was disallowed, and 

the well was abandoned (UDWR, 2019). According to the West Jordan Utilities Manager, none of 

the wells within the area supply municipal water for West Jordan. The adjacent tanks are supplied 

by piped water from the Jordan Valley Water Conservancy District. 

Three federal United States Geological Survey (USGS) monitoring wells were identified within 

one mile of the facility. The wells are inactive; however, according to the most recent groundwater 

levels measured in each well, groundwater in the area ranges from approximately 28 ft bgs to 68 

ft bgs (UDWR, 2019). Several off-facility municipal, domestic, and stock water wells have been 

identified in the vicinity of the facility (Figure 1-2). The third Unregulated Contaminant Monitoring 

Rule (UCMR3) data were reviewed to identify nearby sites which exceed USEPA HA levels for 

PFAS; however, none were identified (USEPA, 2017). PFAS analyses performed in 2016 had 

method detection limits that were higher than currently achievable. Thus, it is possible that low 

concentrations of PFAS were not detected during the UCMR3 but might be detected if analyzed 

today. Groundwater features are presented on Figure 1-2. 

Hydrology

Based on a desktop review of the National Wetlands Inventory online mapping system 

(http://wetlands.fws.gov/), the facility does not contain any mapped wetlands or surface waters, 

although the southern portion is located within the 100-year flood zone. Topographic maps depict 

a portion of Barney’s Creek on the west and south borders of the property. The creek follows the 

location of a historic irrigation system/stormwater discharge canal described by the ARNG 

Environmental Manager, which was reportedly dry 90% of the time and filled in circa 2013/2014. 

No surface water was observed during the site visit. 

Surface water runoff generally drains from west to east, with certain drainage areas draining north 

to south (Kleinfelder, 2018). There is a series of unlined catch basins along the east side of the 

facility, between the air field and the runways. The catch basins also receive snow plowed from 
PFAS Preliminary Assessment Report

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the Hangar/Ramp Area in the winter. The catch basins are usually dry, except during major storm 

events.

The facility sits within the Jordan River and Utah Lake Watershed Management Unit. According 

to the Industrial Stormwater Pollution Prevention Plan for the facility, stormwater from the facility 

enters Barney’s creek along the southerly perimeter. The creek was observed to be dry during 

the site visit. Barney’s Creek discharges into a large detention pond/sedimentation basin to the 

east, where stormwater velocity is slowed, particulates are allowed to settle, and water is 

discharged through a restricted outfall. Ultimately, the stormwater runoff from the facility 

discharges to the Jordan River, which flows in a north to south direction to Utah Lake (Kleinfelder, 

2018). Surface water features are presented on Figure 1-3. 

Climate

The E.J. Garn Aviation Complex is located in a semi-arid, temperate climate zone with four distinct 

seasons. West Jordan receives some precipitation, on average, 88 days per year. The average 

annual rainfall is approximately 20 inches and annual snowfall is approximately 53 inches. 

Summer temperatures peak in July, with an average high of 92 degrees Fahrenheit (°F) and an 

average low of 64°F. Winter temperatures are lowest in January with an average high of 39°F and 

an average low of 23°F. With the exception of two months of westerly winds in the spring, 

prevailing winds are southerly for the majority of the year (National Oceanic and Atmospheric 

Administration [NOAA], 2019). 

Current and Future Land Use

The E.J. Garn Aviation Complex serves as a UTARNG base of operations for military helicopter 

maintenance and support. Building 00003 consists of an office building, a garage dedicated to 

light vehicle maintenance, and parking areas. West Jordan AASF is comprised of a hangar, 

maintenance and storage areas, operations and administrative buildings, and related 

infrastructure including parking lots, aircraft parking areas, and refueling pads. Reasonably 

anticipated future land use is not expected to change from the current land use described above. 
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1/30/2020 ­ Figure 1-1 PM RG 1/30/2020

12420 Milestone Center Drive

Germantown, MD 20876

Facility Location

Base Map: Sources: Esri, HERE, Garmin, USGS,

Intermap, INCREMENT P, NRCan, Esri Japan, METI,

Q:\Projects\ENV\GEARS\GEO\ARNG PFAS\900-CAD-GIS\920-GIS or Graphics\MXD\UT\West_Jordan_AASF_Figures\West_Jordan_PA_Figures\Fig_1-1_West_Jordan_AASF_Facility_Location.mxd

^_

0 0.5 1 2

Miles

Legend

Facility Boundary

E.J. Garn Aviation Complex

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!C( !C(

A!

A!

!5

A! A! A!

A!

!5

!5 !P

A!

A!

A!

Sedimentation

Basin

Barneys Creek

Provo

Reservoir Canal

Barneys Wash

Utah

Lake

Distributing Canal

Utah

Lake

Distributing

Canal

CLIENT

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1:24,000

4/30/2020 ­ Figure 1-2 PM RG 4/30/2020

12420 Milestone Center Drive

Germantown, MD 20876

Groundwater Features

Base Map: Sources: Esri, HERE, Garmin, USGS,

Intermap, INCREMENT P, NRCan, Esri Japan, METI,

C:\Users\stankevichm\OneDrive - AECOM Directory\ARNG_PFAS_GIS_60552172\MXDs\UT\EJ_Garn_AASF_Figures\EJ_Garn_PA_Figures\Fig_1-2_EJ_Garn_AASF_Groundwater.mxd

Legend

Facility Boundary

Water Body

River/Stream

Canal/Ditch

Inferred Groundwater

Flow Direction

Geology

Quaternary; clay or sand

Quaternary; alluvium

Well

!P Domestic

!5 Irrigation/Stockwatering

!C( Municipal

A! Other/Unknown

0 1,000 2,000 4,000

Feet

10
Sedimentation

Basin

Barneys Creek

Provo

Reservoir Canal

Barneys Wash

Utah

Lake

Distributing Canal

Utah

Lake

Distributing

Canal

Bingham

Creek

Watershed

Headwaters

Barneys Creek

Watershed

Barneys

Creek-Jordan

River Watershed

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4/30/2020 ­ Figure 1-3 PM RG 4/30/2020

12420 Milestone Center Drive

Germantown, MD 20876

Surface Water Features

Base Map: Sources: Esri, HERE, Garmin, USGS,

Intermap, INCREMENT P, NRCan, Esri Japan, METI,

C:\Users\stankevichm\OneDrive - AECOM Directory\ARNG_PFAS_GIS_60552172\MXDs\UT\EJ_Garn_AASF_Figures\EJ_Garn_PA_Figures\Fig_1-3_EJ_Garn_AASF_Surface_Water.mxd

Legend

Facility Boundary

100 Year Flood Zone

Water Body

River/Stream

Canal/Ditch

Surface Water Flow

Direction

0 1,000 2,000 4,000

Feet

11
PFAS Preliminary Assessment Report

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2. Fire Training Areas

One former FTA was identified through interviews during the PA. The FTA is located on the north

side of the Hangar/Ramp Area, as depicted on Figure 2-1. PA interview and VSI documents are

included in Appendix B, and photographs are included in Appendix C.

2.1 Hangar/Ramp Area

The Hangar/Ramp Area was identified as an FTA during an interview with the UTARNG Safety

NCO/HAZMAT Training Manager. The Safety NCO/HAZMAT Training Manager stated that there

was a single fire training event conducted at the center of the Hangar/Ramp Area in approximately

1998 (as shown in Figure 2-1). The fire training event involved the full discharge of one 30-gallon

Tri-MaxTM fire extinguisher reportedly filled with AFFF. Foam discharged during the training was

left in place to evaporate or disperse with the wind. The Safety NCO/HAZMAT Training Manager

stated approximately 16 mobile fire extinguishers (Tri-MaxTM 30-gallon units) were historically

strategically placed around the flight line, a couple at the fuel island, and several near the fire

locker. Refills and hydrostatic testing for the Tri-MaxTM units were completed by State Fire, and

unit maintenance was reportedly not conducted on-site. Currently, no fire training is conducted

with Tri-MaxTM units. AFFF units are being phased out at the facility, and current mobile fire

suppression includes standard handheld fire extinguishers and Purple K units. During the VSI,

one Tri-MaxTM fire extinguisher was observed at the Hangar/Ramp Area fuel point. The Safety

NCO/HAZMAT training officer reported that there are approximately 10 units at the facility, waiting

to be transferred offsite. The Tri-MaxTM extinguishers are equipped with Class B AFFF. Although

the Tri-MaxTM units are no longer in use, it is unknown when they were last discharged.

The Safety NCO/HAZMAT Training Manager was on the crash rescue team from 1995 to 1999,

and stated that during his tenure, AFFF was used at least twice a year at various locations around

the Hangar/Ramp Area for training purposes. The fire training events involved the discharge of

an unknown amount of AFFF from the fire truck. During the training events, a fire would be

simulated at a random location, and a crash team would respond. Nozzle testing was conducted

on the same day as part of the exercise. Facility personnel could not identify the exact location of

the testing areas; however, it was reported that all testing and crash simulations were conducted

on concrete. Foam was discharged on the concrete and left in place to evaporate or disperse with

the wind.

The Hangar/Ramp Area FTA is approximately located at geographic coordinates 40°36'47.4"N;

111°59'45.9"W. Surface discharge on the Hangar/Ramp Area reportedly flows across the concrete

to the south or east. There is a dry creek on the south side of the facility, and a series of unlined

catch basins along the east side of the facility, between the air field and the runways.
 Catch Basins

Fire

Training

Area

Tri-Max Training/CFR

Nozzle Testing Area

CLIENT

REVISED

SCALE

ARNG

GIS BY

CHK BY

MS

AG

4/30/2020

4/30/2020

NOTES Preliminary Assessment for PFAS at E.J. Garn Aviation Complex, UT

1:4,200

4/30/2020 ­ Figure 2-1 PM RG 4/30/2020

12420 Milestone Center Drive

Germantown, MD 20876

Fire Training Area

Base Map: Sources: Esri, HERE, Garmin, USGS,

Intermap, INCREMENT P, NRCan, Esri Japan, METI,

C:\Users\stankevichm\OneDrive - AECOM Directory\ARNG_PFAS_GIS_60552172\MXDs\UT\EJ_Garn_AASF_Figures\EJ_Garn_PA_Figures\Fig_2-1_EJ_Garn_AASF_Fire_Training_Areas.mxd

Legend

Potential PFAS Release

Facility Boundary

River/Stream

Canal/Ditch

0 175 350 700

Feet

13
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

14

3. Non-Fire Training Areas

In addition to FTAs, the PA evaluated areas where PFAS-containing materials may have been

broadly used, stored, or disposed. This may include buildings with fire suppression systems, paint

booths, AFFF storage areas, and areas of compliance demonstrations. Information on these

features obtained during the PA are included in Appendices A and B. Four non-FTAs where

AFFF was stored and/or potentially released were identified during the PA. A description of each

non-FTA is presented below, and the non-FTAs are shown on Figure 3-1.

Building 00003 Building 00003 is an approximately 74,820 square foot building located at

geographic coordinates 40°36'47.4"N; 111°59'56.7"W. The building was constructed circa 1993.

Fire suppression for the building includes a water sprinkler system and does not contain AFFF.

No releases of AFFF were reported within the building. In 1997, a dumpster fire on the west side

of the building resulted in a discharge of AFFF and is discussed further in Section 4.

3.1 Building 00001

Building 00001 is an approximately 52,000 square foot building located at geographic coordinates

40°36'49.5"N; 111°59'50.0"W. The building is currently undergoing renovation and was not

accessed during the VSI.

The fire truck bay was historically located at Building 00001. The fire truck was taken out of use

at the facility in 2007 and was auctioned off in 2009. Tanks on the fire truck were refilled with 3%

AFFF concentrate from 5-gallon containers. The fire truck was washed in the fire truck bay, or to

an area to the south of the fire truck bay. The ground surface to the south of the fire truck bay

would have been impacted with any AFFF washed off the trucks.

Drains in the Building 00001currently discharge to the oil/water separator to the east, and then to

the municipal sanitary sewer system serviced by the City of West Jordan. However, it is not clear

that the drains have always been connected to the sanitary sewer. According to UTARNG staff,

drains from a different section of Building 00001 were discovered to be connected to a dry well to

the northeast of the building. It is unknown if a similar pathway ever existed for the piping in the

fire truck bay. Therefore, potential discharges of AFFF in the fire truck bay could have released

directly into the dry well.

3.2 Building 00002

Building 00002 is an approximately 52,000 square ft building located at geographic coordinates

40°36'45.0"N; 111°59'49.3"W. The hangar is equipped with a full fire suppression AFFF system

with 2% high expansion foam, but the size of the tank is unknown. The Facilities Manager reported

that the seal in the bottom of the AFFF tank has been leaking, which is evidence of a potential

bladder rupture or damaged seal. The drains in the tank room likely connect to an oil/water

separator near the hangar before discharging to the municipal sewer system. Wastewater is

conveyed to the South Valley Water Reclamation Facility, where it is treated in an oxidation ditch

system before it is discharged to the Jordan River (SVW, 2019).

Building 00002 had an AFFF suppression system installed when it was originally built (1989 -

1991). This system was tested when installed, and the foam was pushed out the door onto the

ramp. The system was updated in 2008 for high expansion foam. There were multiple releases

during the construction as well as one intentional full system test. After each incident, the

discharged foam was pushed out of the building, onto the concrete, and left in place to evaporate

or disperse with the wind.
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

15

3.3 Building 00004

Building 00004 is an approximately 31,025 square ft building located on the western installation

boundary at geographic coordinates 40°36'40.1"N; 111°59'47.1"W. The building is equipped with

a full fire suppression AFFF system. The Safety NCO/HAZMAT Training Manager stated that there

was an intentional system test conducted when the building was installed in 2016. The discharged

foam was pushed out of the building, onto the concrete, and left in place to evaporate or disperse

with the wind.

3.4 Building 00010

Building 00010 is an approximately 15,200 square ft tent currently located at geographic

coordinates 40°36'37.2"N; 111°59'46.6"W. The tent is occasionally shifted to various locations

typically within about 500 ft east of its current location. The ground surface under the tent is

asphalt and/or concrete. The tent is used to store supplies in support of the facility activities.

The Safety NCO/HAZMAT Training Manager reported that 3% AFFF had been stored as

concentrate in 5-gallon containers within the building from at least 1989 to 2009, and he is not

aware of any releases during that time. In April 2009, the Safety NCO/HAZMAT Training Manager

transported 12,000 pounds (more than 250 5-gallon containers) of 3% AFFF from the facility to

the Dugway Proving Grounds. There is currently no AFFF stored at the facility.
Dry Well

Building 00003

Building 00002

Building 00004

Building 00001

 Catch Basins

Building 00010

Fire Truck Bay/ Foam Storage

Wash Down Area

Former Foam Storage Area

CLIENT

REVISED

SCALE

ARNG

GIS BY

CHK BY

MS

AG

5/1/2020

5/1/2020

NOTES Preliminary Assessment for PFAS at E.J. Garn Aviation Complex, UT

1:4,200

5/1/2020 ­ Figure 3-1 PM RG 5/1/2020

12420 Milestone Center Drive

Germantown, MD 20876

Non-Fire Training Areas

Base Map: Sources: Esri, HERE, Garmin, USGS,

Intermap, INCREMENT P, NRCan, Esri Japan, METI,

C:\Users\stankevichm\OneDrive - AECOM Directory\ARNG_PFAS_GIS_60552172\MXDs\UT\EJ_Garn_AASF_Figures\EJ_Garn_PA_Figures\Fig_3-1_EJ_Garn_AASF_Non-Fire_Training_Areas.mxd

Legend

Potential PFAS Release

No Suspected Release

Facility Boundary

River/Stream

Canal/Ditch

0 175 350 700

Feet

16
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

17

4. Emergency Response Areas

Emergency responses to crashes sometimes require flame suppression, which may result in the

release of PFAS to the environment in the form of AFFF.

Aircraft emergency services were provided by the West Jordan AASF since at least 1989 to 2007.

Two Emergency Response Areas were identified adjacent to the facility, as described in Section

5 (Figure 4-1). Current basic fire protection is provided by the West Jordan Fire Department.

Once a year, the municipal fire department simulates a crash at various locations and responds

using water. The municipal fire department is located approximately 0.5 miles east of the facility,

at 7602 Jordan Landing Blvd, West Jordan, UT 84084.

According to the Safety NCO/HAZMAT Training Manager, there was a dumpster fire at Building

00003 in 1997, which he put out with an AFFF mobile unit. It is unknown how many gallons were

discharged. The dumpster fire was approximately located at geographic coordinates 40°36'48.0"N

111°59'58.6"W.
 Catch Basins

1997

Dumpster

Fire

CLIENT

REVISED

SCALE

ARNG

GIS BY

CHK BY

MS

AG

4/30/2020

4/30/2020

NOTES Preliminary Assessment for PFAS at E.J. Garn Aviation Complex, UT

1:4,200

4/30/2020 ­ Figure 4-1 PM RG 4/30/2020

12420 Milestone Center Drive

Germantown, MD 20876

Emergency Response Area

Base Map: Sources: Esri, HERE, Garmin, USGS,

Intermap, INCREMENT P, NRCan, Esri Japan, METI,

C:\Users\stankevichm\OneDrive - AECOM Directory\ARNG_PFAS_GIS_60552172\MXDs\UT\EJ_Garn_AASF_Figures\EJ_Garn_PA_Figures\Fig_4-1_EJ_Garn_AASF_Emergency_Response_Area.mxd

Legend

Potential PFAS Release

Facility Boundary

River/Stream

Canal/Ditch

0 175 350 700

Feet

18
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

19

5. Adjacent Sources

Several potential off-facility sources of PFAS adjacent to the E.J. Garn Aviation Complex were

identified during the PA. A description of each adjacent source is presented below, and the

adjacent sources are shown on Figure 5-1.

5.1 Emergency Response Area

One emergency response area was identified adjacent to the current West Jordan AASF facility

during the PA through interviews with facility personnel, whose knowledge covers the period of

1992 to present day.

According to the Safety NCO/HAZMAT Training Manager, there was a Civilian Plane Crash in

1989 on the runway east of the AASF and west of the City Water Supply. The fire was suppressed

by the AASF emergency services, presumably using the fire truck which was equipped with 3%

AFFF, although the quantity used is unknown. The Safety NCO/HAZMAT Training Manager also

stated that there have been many air crashes at the runway over the years; however, the 1989

crash was the only runway crash handled by the AASF emergency services.

5.2 Private Aviation Companies at South Valley Regional Airport

The South Valley Regional Airport (U42) Fixed Base Operator (FBO) is located north of the West

Jordan AASF and shares the adjacent runway. The airport is located at 7799 Airport Rd, West

Jordan, UT 84084. The FBO currently supports business-related flying, law

enforcement/fire/rescue flying services, recreational flying, flight training, and air charters. Flight

training is conducted by Randon Aviation and Utah Helicopter, both located at 7220 S 4450 W,

West Jordan, UT 84084. According to the EDRTM report, Million Air and and JK’s Aviation are two

additional aviation companies located at 7365 South Airport Drive, West Jordan, UT 84084. The

exact location of these facilities within the South Valley Regional Airport could not be determined.

The use or storage of AFFF at the airport facilities could not be determined during the PA; 

however, none of the facilities have their own emergency services and are under the municipal

emergency services. The municipal fire department is located approximately 0.5 miles east of the

facility at 7602 Jordan Landing Blvd, West Jordan, UT 84084.
Sedimentation

Basin

Barneys Creek

Utah Lake Distributing Canal

Utah

Lake

Distributing

Canal

Water Supply

1989 Civilian

Crash

Runways

CLIENT

REVISED

SCALE

ARNG

GIS BY

CHK BY

MS

AG

4/30/2020

4/30/2020

NOTES Preliminary Assessment for PFAS at E.J. Garn Aviation Complex, UT

1:12,000

4/30/2020 ­ Figure 5-1 PM RG 4/30/2020

12420 Milestone Center Drive

Germantown, MD 20876

Adjacent Sources

Base Map: Source: Esri, DigitalGlobe, GeoEye,

Earthstar Geographics, CNES/Airbus DS, USDA, USGS,

C:\Users\stankevichm\OneDrive - AECOM Directory\ARNG_PFAS_GIS_60552172\MXDs\UT\EJ_Garn_AASF_Figures\EJ_Garn_PA_Figures\Fig_5-1_EJ_Garn_AASF_Adjacent_Sources.mxd

Legend

Potential PFAS Release

No Suspected Release

Facility Boundary

Water Body

River/Stream

Canal/Ditch

0 500 1,000 2,000

Feet

20
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

21

6. Preliminary Conceptual Site Model

Based on the PA findings, there were multiple events of fire training, fire suppression system

testing, and emergency response with confirmed discharges of AFFF to the ground surface across

the Hangar/Ramp Area. As such, the entire Hangar/Ramp Area has been determined an AOI and

a probable PFAS source area. The AOIs and preliminary CSMs for the AOIs are shown on

Figures 6-1 and 6-2 and summarized below.

The following sections describe the CSM components and the specific CSM developed for the

AOI. The CSM identifies the three components necessary for a potentially complete exposure

pathway: (1) source, (2) pathway, (3) receptor. If any of these elements are missing, the pathway

is considered incomplete.

In general, the potential PFAS exposure pathways are ingestion and inhalation. Human exposure

via the dermal contact pathway may occur, and current risk practice suggests it is an insignificant

pathway compared to ingestion; however, exposure data for dermal pathways is sparse and 

continues to be the subject of PFAS toxicological studies (National Ground Water Association,

2018). Receptors for the E.J. Garn Aviation Complex include site workers, construction workers,

residents, and trespassers. The preliminary CSMs for the AOIs indicate which specific receptors

could potentially be exposed to PFAS.

6.1 AOI 1: Building 00001

AOI 1 comprises the ground surface and subsurface to the south and east of the Building 00001

Building 00001. Potential discharges of AFFF in the wash down area to the south of the fire truck

bay for an unknown time period may have resulted in a release to the ground surface, and

subsequently to the catch basins to the east of the building. Potential discharges of AFFF in the

fire truck bay to the northeast adjacent dry well for an unknown time period prior to 2009 may

have resulted in a release directly into the subsurface.

PFAS are water soluble and can migrate readily from soil to groundwater or surface water via

leaching and run-off. If PFAS releases to the dry well occurred, it is possible that PFAS have

migrated from subsurface soil at AOI 1 to groundwater and waters in the Jordan River. In addition,

precipitation infiltrating into the dry well from the surface of the AOI may cause the migration of

PFAS from subsurface soil to groundwater. Based on the topography and water bodies in the

vicinity of the E.J. Garn Aviation Complex, it is assumed groundwater moves from west to east,

towards the Jordan River. The Jordan River is the main source of irrigation water for farms in the

Jordan Valley and would infiltrate into the ground surface, and there are a number of drinking

water wells downgradient of the facility; therefore, the exposure pathway for groundwater to the 

off-facility resident receptor is potentially complete. Ground-disturbing activities to subsurface soil

could present another potentially complete exposure pathway to construction workers via

ingestion of subsurface soil. The preliminary CSM for AOI 1 is shown on Figure 6-2.

6.2 AOI 2: Hangar/Ramp Area

AOI 2 comprises the Hangar/Ramp Area east of Building 00002 and Building 00004. Releases of

the fire suppression systems in the buildings from approximately 1991 to 2016 resulted in AFFF

being pushed onto the Hangar/Ramp Area concrete and left in place to evaporate or disperse with

the wind. In addition, fire training activities were conducted around the Hangar/Ramp Area from

at least 1995 to 1999, and emergency responses using foam may have occurred on the same

area since 1989.

Although the Hangar/Ramp Area within AOI 2 is made of impervious surfaces, PFAS in surface

water may flow into adjacent unpaved surfaces and into surface soil. If PFAS releases to surface
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

22

soil occurred, it is possible that PFAS have migrated from surface soil at AOI 2 to groundwater

and waters in the Jordan River. In addition, precipitation infiltrating into the unpaved surrounding

areas of the AOI may cause the migration of PFAS from surface soil to groundwater and surface

water.

AOI 2 lies within Jordan River and Utah Lake Watershed Management Unit, and surface water

from the Hangar/Ramp Area generally drains from west to east, with certain drainage areas

draining north to south (Kleinfelder, 2018). There are a series of unlined catch basins along the

east side of the facility between the air field and the runways. Stormwater flowing east across the

Hangar/Ramp Area would run into the catch basins and percolate into the soil. Stormwater flowing

south across the Hangar/Ramp Area enters Barney’s creek along the southerly perimeter.

Barney’s Creek was observed to be dry during the site visit. Barney’s Creek discharges into a

large detention pond/sedimentation basin to the east, where stormwater velocity is slowed,

particulates are allowed to settle, and water is discharged through a restricted outfall. Ultimately,

the stormwater runoff from the facility percolates into the groundwater and/or discharges to the

Jordan River, which flows in a north to south direction to Utah Lake (Kleinfelder, 2018). As noted

above, groundwater and the Jordan River are potential pathways to various receptors.

There are unpaved soil areas adjacent to the eastern boundary of the Hangar/Ramp Area which

may receive potential discharges of AFFF or runoff or snow from affected ground surfaces.

Therefore, the pathway for potential exposure to PFAS contamination via inhalation of dust

particles, or ingestion of surface soil during construction or maintenance, is considered partially

complete at the AOI for site workers, construction workers, and trespassers. Ground-disturbing

activities to subsurface soil could present another potentially complete exposure pathway to

construction workers via ingestion of subsurface soil. The preliminary CSM for AOI 2 is shown on

Figure 6-3.

6.3 AOI 3: Building 00003 Dumpster Fire

According to the Safety NCO/HAZMAT Training Manager, there was a dumpster fire at Building

00003 in 1997, which he put out with an AFFF mobile unit. It is unknown how many gallons were

discharged. The dumpster was located on asphalt, with an area of grass directly to the north of

the dumpster. The surface drainage in the vicinity of AOI 3 was designed to flow into a catch basin

to the south.

The parking lot around AOI 3 is made of impervious surfaces, and surface drainage does not favor

a release to the unpaved grass area to the north of the dumpster. However, snow removal from

PFAS-affected surfaces to unpaved surfaces may result in a PFAS release to surface soil. PFAS

are water soluble and can migrate readily from soil to groundwater or surface water via leaching

and run-off. If PFAS releases to surface soil occurred, it is possible that PFAS have migrated from

surface soil at AOI 3 to groundwater and waters in the Jordan River. In addition, precipitation

infiltrating into the unpaved surrounding areas of the AOI may cause the migration of PFAS from

surface soil to groundwater and surface water.

AOI 3 lies within Jordan River and Utah Lake Watershed Management Unit, and surface water

from Building 00003 generally drains from west to east, with certain drainage areas draining north

to south (Kleinfelder, 2018). Stormwater from catch basins at the Building 00003 enters Barney’s

creek along the southerly perimeter. Barney’s Creek was observed to be dry during the site visit.

Barney’s Creek discharges into a large detention pond/sedimentation basin to the east, where

stormwater velocity is slowed, particulates are allowed to settle, and water is discharged through

a restricted outfall. Ultimately, the stormwater runoff from the facility discharges to the Jordan

River, which flows in a north to south direction to Utah Lake (Kleinfelder, 2018). The Jordan River

is the main source of drinking water for the Jordan Valley; therefore, the exposure pathway for 

groundwater to the off-facility resident receptor is potentially complete.
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

23

There are unpaved soil areas adjacent to the northern boundary of the parking lot, where the

dumpster fire took place, which may receive potential discharges of AFFF from snow removed

from affected ground surfaces. Therefore, the pathway for potential exposure to PFAS

contamination via inhalation of dust particles, or ingestion of surface soil during construction or

maintenance, is considered partially complete at the AOI for site workers, construction workers,

and trespassers. Ground-disturbing activities to subsurface soil could present another potentially

complete exposure pathway to construction workers via ingestion of subsurface soil. The

preliminary CSM for AOI 3 is shown on Figure 6-4
A!

A!

A!

A!

!5

!P !5

A!

A!

A!

Sedimentation

Basin

Barneys

Creek-Jordan

River Watershed

Barneys Creek

Utah

Lake

Distributing

Canal

Water Supply

1989 Civilian

Crash

Runways

AOI 2

AOI 1

AOI 3

0 500 1,000 2,000

Feet

A!

Fire Training Area

1997 Dumpster Fire

Dry Well

Building 00003

Building 00002

Building 00004

Building 00001

Tri-Max Training/CFR Nozzle Testing Area 

Catch Basins

Building 00010

Fire Truck Bay/Foam Storage

Wash Down Area

Former Foam

Storage Area

Barneys

Creek-Jordan

River Watershed

AOI

2

AOI 1

AOI 3

­ Figure 6-1

CLIENT

REVISED

SCALE

PROJECT

ARNG

Preliminary Assessment for PFAS at E.J. Garn Aviation Complex, UT

5/1/2020

5/1/2020

5/1/2020

MS

AG

RG

GIS BY

CHK BY

PM

Base Map: Sources: Esri, HERE, Garmin, USGS, Intermap, INCREMENT P, NRCan,

Esri Japan, METI, Esri China (Hong Kong), Esri Korea, Esri (Thailand), NGCC, (c)

5/1/2020

C:\Users\stankevichm\OneDrive - AECOM Directory\ARNG_PFAS_GIS_60552172\MXDs\UT\EJ_Garn_AASF_Figures\EJ_Garn_PA_Figures\Fig_6-1_EJ_Garn_AASF_AOIs.mxd

Area of Interest

12420 Milestone Center Drive

Germantown, MD 20876

Area of Interest

Potential PFAS Release

No Suspected Release

Facility Boundary

Water Body

River/Stream

Canal/Ditch

Surface Water Flow Direction

Inferred Groundwater Flow

Direction

!P Domestic

!5 Irrigation/Stockwatering

!C( Municipal

A! Other/Unknown

0 150 300 600

Feet

1:12,000

24
Media

SOURCE PATHWAY RE

AOI 1 Potential AFFF release PFAS in surface soil

Human 

activities

Precipitation/ 

run-off

Leaching/ 

infiltration

Airborne soil 

particulate

Surface soil 

at AOI

Surface 

water/ 

sediment

Subsurface 

soil

Shallow 

groundwater

Source Release Mechanism Media Transport and Migration Media Exposure Routes

Inhalation of 

dust

Ingestion

Ingestion

Ingestion

Ingestion

Hum

C

Flow-chart continuesPartial/ possible flowFlow-chart stopsIncomplete pathwayPossible complete pathwayComplete pathway

/ 

Site 

Worker

Cons

W

Site 

Worker

Cons

W

/ 

/ 

/ / 

LEGEND

Figure 

Preliminary Conceptua

E.J. Garn Aviation Comp

Potential 

Off-Facility 

Source Not 

under 

Control of 

ARNG

Notes:1. The resident receptor refers to an off-siteresident.2. Current risk practice suggests the exposurepathway for dermal contact is insignificantcompared to ingestion, but supporting data issparse and continues to be studied.

PFAS on 

ground 

surface

PFAS on 

ground 

surface and 

subsurface 

dry well
Media

SOURCE PATHWAY RE

AOI 2 Potential AFFF release PFAS in surface soil

Human 

activities

Precipitation/ 

run-off

Leaching/ 

infiltration

Airborne soil 

particulate

Surface soil 

at AOI

Surface 

water/ 

sediment

Subsurface 

soil

Shallow 

groundwater

Source Release Mechanism Media Transport and Migration Media Exposure Routes

Inhalation of 

dust

Ingestion

Ingestion

Ingestion

Ingestion

Hum

C

Flow-chart continuesPartial/ possible flowFlow-chart stopsIncomplete pathwayPossible complete pathwayComplete pathway

/ 

Site 

Worker

Cons

W

Site 

Worker

Cons

W

/ 

/ 

/ / 

LEGEND

Figure 

Preliminary Conceptua

E.J. Garn Aviation Comp

Potential 

Off-Facility 

Source Not 

under 

Control of 

ARNG

Notes:1. The resident receptor refers to an off-siteresident.2. Current risk practice suggests the exposurepathway for dermal contact is insignificantcompared to ingestion, but supporting data issparse and continues to be studied.

PFAS on 

ground 

surface
Media

SOURCE PATHWAY RE

AOI 3 Potential AFFF release PFAS in surface soil

Human 

activities

Precipitation/ 

run-off

Leaching/ 

infiltration

Airborne soil 

particulate

Surface soil 

at AOI

Surface 

water/ 

sediment

Subsurface 

soil

Shallow 

groundwater

Source Release Mechanism Media Transport and Migration Media Exposure Routes

Inhalation of 

dust

Ingestion

Ingestion

Ingestion

Ingestion

Hum

C

Flow-chart continuesPartial/ possible flowFlow-chart stopsIncomplete pathwayPossible complete pathwayComplete pathway

/ 

Site 

Worker

Cons

W

Site 

Worker

Cons

W

/ 

/ 

/ / 

LEGEND

Figure 

Preliminary Conceptua

E.J. Garn Aviation Comp

Potential 

Off-Facility 

Source Not 

under 

Control of 

ARNG

Notes:1. The resident receptor refers to an off-siteresident.2. Current risk practice suggests the exposurepathway for dermal contact is insignificantcompared to ingestion, but supporting data issparse and continues to be studied.

PFAS on 

ground 

surface
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

28

7. Conclusions

This report presents a summary of available information gathered during the PA on the use and

storage of AFFF and other PFAS-related activities at the E.J. Garn Aviation Complex. The PA

findings are based on the information presented in Appendix A and Appendix B.

7.1 Findings

Three AOIs related to potential PFAS release were identified (Table 7-1) at the E.J. Garn Aviation

Complex during the PA (Figure 7-1).

Table 7-1: AOIs at E.J. Garn Aviation Complex

Area of Interest Name Used by Release Dates

AOI 1 Building 00001 UTARNG Prior to 2009

AOI 2 Hangar/Ramp Area UTARNG Since at least 1991 until

approximately 2016.

AOI 3 Building 00003

Dumpster Fire UTARNG 1997

Based on information obtained during the PA at these AOIs, there is potential for exposure to

PFAS contamination in surface soil to site workers, construction workers, and trespassers via

ingestion and inhalation; subsurface soil to construction workers via ingestion; surface water and 

sediments to off-facility residents via ingestion; and groundwater to off-facility residents via

ingestion.

The Tent Storage at the AASF was determined to have no suspected PFAS release to the

environment. Although AFFF was used and stored in this location, there are no documented

releases.

Numerous potential off-facility sources of PFAS were considered in the local area surrounding the

E.J. Garn Aviation Complex through interviews or review of data. The majority of the adjacent

sources are located in the inferred downgradient/cross-gradient groundwater and surface water

flow path.

7.2 Uncertainties

A number of information sources were investigated during this PA to determine the potential for

PFAS-containing materials to have been present, used, or released at the facility. Historically,

documentation of PFAS use was not required because PFAS were considered benign. Therefore,

records were not typically kept by the facility or available during the PA on the use of PFAS in

training, firefighting, or other non-traditional activities, or on its disposition.

The conclusions of this PA are based on all available information, including: previous

environmental reports, EDRsTM, observations made during the VSI, and interviews. Interviews of

personnel with direct knowledge of a facility generally provided the most useful insights regarding

a facility's historical and current PFAS-containing materials. Sometimes, the provided information

was vague or conflicted with other sources. Gathered information has a degree of uncertainty due

to the absence of written documentation, the limited number of personnel with direct knowledge

due to staffing changes, the time passed since PFAS was first used (1969 to present), and a

reliance on personal recollection. Inaccuracies may arise in potential PFAS release locations,

dates of release, volume of releases, and the concentration of AFFF used. There is also a
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

29

possibility the PA has missed a source of PFAS, as the science of how PFAS may enter the

environment continually evolves.

In order to minimize the level of uncertainty, readily available data regarding the use and storage

of PFAS were reviewed, retired and current personnel were interviewed, multiple persons were

interviewed for the same potential source area, and potential source areas were visually

inspected.

The following Table 7-2 summarizes the uncertainties associated with the PA.

Table 7-2: Uncertainties within the PA

Area of Interest Source of Uncertainty

E.J. Garn Aviation

Complex, General

Most of the information obtained during the PA came

from the UTARNG Safety NCO/HAZMAT Training

Manager for the period 1995 to 1999. AFFF was present

at the site since at least 1991 in Building 00002

suppression system, if not Tri-MaxTM Units. There is a

data gap before 1995 and after 2000.

AOI 2: Hangar/Ramp Area The amount of discharge from the Tri-MaxTM fire

extinguishers used at the FTA on the Hangar/Ramp Area

from 1995-1999 are unknown.

The amount and exact locations of discharges during

fire training events conducted circa 1995 to 1999 are

unknown.

Adjacent The amount of AFFF discharged at the emergency

response areas (1989 Civilian Crash and 1997

dumpster fire) is unknown.

According to the EDRTM report, Million Air and JK’s

Aviation are two additional aviation companies located

at 7365 South Airport Drive, West Jordan, UT 84084.

The exact location of these facilities within the South

Valley Regional Airport could not be determined. The

use or storage of AFFF at the airport facilities could not

be determined during the PA; however, none of the 

facilities have their own emergency services and are

under the municipal emergency services.

7.3 Potential Future Actions

Based on the documented absence (1989 to present) of the use or release of AFFF from the Tent

Storage, evidence does not indicate that current or former ARNG activities having contributed

PFAS contamination to soil, groundwater, surface water, or sediment at this location.

Interviews and records (covering 1992 to present) indicate that current or former ARNG activities

may have resulted in potential PFAS releases at the AOIs identified during the PA. Based on the

preliminary CSMs developed for the AOIs, there is potential for receptors to be exposed to PFAS

contamination in soil, groundwater, surface water, and sediment at the AOIs. Table 7-3

summarizes the rationale used to determine if the AOIs should be considered for further

investigation under the CERCLA process and undergo an SI.
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

30

Table 7-3: PA Findings Summary

Area of

Interest AOI Location Rationale Potential Future Action

AOI 1:

Building

00001

40°36'48.7"N;

111°59'48.3"W

Confirmed location of fire truck

wash area discharge directly to

ground surface. Suspected

location of fire truck wash water

from the fire truck bay to a dry

well northeast of Building

00001.

Proceed to an SI, focus

on soil, groundwater

AOI 2:

Hangar/Ramp

Area

40°36'43.3"N; 

111°59'44.3"W

Confirmed location of fire

training exercises and building

discharges by interviewee with

direct knowledge

Proceed to an SI, focus

on soil, groundwater,

surface water, sediment

AOI 3:

Building

00003

Dumpster

Fire

40°36'48.0"N;

111°59'58.6"W

Confirmed location of AFFF

used to extinguish a fire by

interviewee with direct

knowledge.

Proceed to an SI, focus

on soil, groundwater,

surface water, sediment

ARNG will evaluate the need for an SI at the E.J. Garn Aviation Complex based on the potential

receptors, the potential migration of PFAS contamination off the facility, and the availability of

resources.
Sedimentation

Basin

Barneys Creek

Utah

Lake

Distributing

Canal

Water Supply

1989 Civilian

Crash

Runways

AOI 2

AOI 1

AOI 3

Building 00003

Catch Basins

Building 00002

Building 00004

1997 Dumpster 

Fire

Fire Training Area

Fire Truck Bay/

Foam Storage

Wash Down Area

Tri-Max Training/CFR

Nozzle Testing Area

Dry Well

Former Foam

Storage Area Building 00010

Building 00001

AOI 2

AOI 1

AOI 3

0 500 1,000 2,000

Feet

­ Figure 7-1

CLIENT

REVISED

SCALE

PROJECT

ARNG

Preliminary Assessment for PFAS at E.J. Garn Aviation Complex, UT

5/1/2020

5/1/2020

5/1/2020

MS

AG

RG

GIS BY

CHK BY

PM

Base Map: Sources: Esri, HERE, Garmin, USGS, Intermap, INCREMENT P, NRCan,

Esri Japan, METI, Esri China (Hong Kong), Esri Korea, Esri (Thailand), NGCC, (c)

5/1/2020

1:12,000

C:\Users\stankevichm\OneDrive - AECOM Directory\ARNG_PFAS_GIS_60552172\MXDs\UT\EJ_Garn_AASF_Figures\EJ_Garn_PA_Figures\Fig_7-1_EJ_Garn_AASF_Summary.mxd

Summary of Findings

12420 Milestone Center Drive

Germantown, MD 20876

Area of Interest

Potential PFAS Release

No Suspected Release

Facility Boundary

Water Body

River/Stream

Canal/Ditch

0 150 300 600

Feet

31
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

32

References

Kleinfelder, 2018. Industrial Stormwater Pollution Prevention Plan. E.J. Garn Aviation Installation

Army Aviation Support Facility Permit No. UTR000496 7563 South Airport Road, West Jordan,

Utah 84084 Kleinfelder Project No. 20181545.001A. October 12, 2018.

Marine, I.W. and Price, D., 1964. Geology and Ground-Water resources of the Jordan Valley,

Utah. Utah Geological and Mineralogical Survey Water-Resources Bulletin 7. Prepared in

cooperation with the Utah State Engineer. December 1964. Available online:

https://pubs.er.usgs.gov/publication/70179723

National Ground Water Association, 2018. Groundwater and PFAS: State of Knowledge and

Practice. January 2018.

National Oceanic and Atmospheric Administration, 2019. National Centers for Environmental

Information. https://www.ncdc.noaa.gov/ (Accessed September 2019).

South Valley Water (SVW), 2019. South Valley Water Reclamation Facility Webiste.

https://www.svwater.com/home (Accessed September 2019).

Utah Division of Water Rights (UDWR), 2019. Map Search; Water Right Details. 

https://maps.waterrights.utah.gov/EsriMap/map.asp (Accessed September 2019).

U.S. Environmental Protection Agency (USEPA),, 1991. Guidance for Performing Preliminary

Assessments under CERCLA. EPA/540/G-91/013. September 1991.

USEPA, 2017. Occurrence Data for the Unregulated Contaminant Monitoring Rule; UCMR3 

(2013-2015) Occurrence Data. January 2017. Available online:

https://www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule

U.S. Department of Agriculture (USDA), 2019. Natural Resources Conservation Service Web Soil

Survey. https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx (Accessed

September 2019).
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

Appendix A

Data Resources
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, Utah

Data resources will be provided separately on CD. Data resources for the E.J. Garn Aviation 

Complex include:

Department of Environmental Quality Documentation

• No Further Action, Leaking Underground Storage Tank Release, Department of 

Environmental Quality, Division of Environmental Response and Remediation, September 

7, 2016

Environmental Data Resources, Inc. Geocheck Report

• 2019 Environmental Data Resources, Inc. Geocheck Report for West Jordan AASF, UT

Industrial Stormwater Pollution Prevention Plan

• Industrial Stormwater Pollution Prevention Plan- Updated, Kleinfelder Project No. 

20181545.001A, Environmental Resources Management, October 12, 2018

Fuel Release Documentation

• Documentation Regarding Fuel Release, Kleinfelder File No,: 20164574.001A, State of Utah 

Department of Administrative Services, March 9, 2016
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

Appendix B

Preliminary Assessment Documentation
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

Appendix B.1

Interview Records
PA Interview Questionnaire - Environmental Manager Facility: E.J. Garn Aviation Complex

Interviewer: 

Date/Time: 07/16/2019 / 0900

Interviewee: 

Title: Deputy Environmental Program Manager 

(Water Engineer)/Environmental Resource Management 

Phone Number: 

Email: 

Can your name/role be used in the PA Report? Y or N 

Can you recommend anyone we can interview? 

Y or N (Facilities Manager); 

(Environmental Program Manager) 

1. Roles or activities with the Facility/years working at the Facility. 

Deputy EPM (Water Engineer)/Environmental Resource Management. Has been involved with the property 

since 2003 as a consultant, and since 2005 as Guard Representative. 

2. Where can I find previous facility ownership information? 

Property was previously used as a municipal airport. 

3. What can you tell us about the history of PFAS including aqueous film forming foam (AFFF) at the 

Facility? Was it used for any of the following activities, circle all that apply and indicate years of active 

use, if known? Identify these locations on a facility map. 

Maintenance 

Fire Training Areas 

Firefighting (Active Fire) 

Crash 

Fire Suppression Systems (Hangers/Dining Facilities) 

Fire Protection at Fueling Stations 

Non-Technical/Recreational/ Pest Management 

Metals Plating Facility 

Waterproofing Uniforms (Laundry Facilities) 

Other 

4. Fill out CSM Information worksheet with the Environmental Manager. 

5. Are any current buildings constructed with AFFF dispensing systems or fire suppression systems? 

What are the AFFF/suppression system test requirements? What is the frequency of testing the 

AFFF/suppression system? Do you have “As Built” drawings for the buildings? 

Test requirements are manufacturer specs (annual). 

 
PA Interview Questionnaire - Environmental Manager Facility: E.J. Garn Aviation Complex

Interviewer:

Date/Time: 07/16/2019 / 0900

6. Are fire suppression systems currently charged with AFFF or have they been retrofitted for use of 

high expansion foam? If retrofitted, when was thatdone?

They were AFFF originally, retrofitted in 2008. 

It is unknown how fire suppression system tanks were refilled at the fire house. Bladders have never 

ruptured.

7. How is AFFF procured? Do you have an inventory/procurement system that tracks use? 

Purchased through facility maintenance. Discharges tracked through building maintenance. 

Follow up with . 

8. What type of AFFF has been/is being used (3%, 6%, Mil Spec Mil-F-24385, High Expansion)? 

Manufacturer (3M, Dupont, Ansul, National Foam, Angus, Chemguard, Buckeye, Fire Service Plus)?

3%

9. Where is the AFFF stored? How is it stored (tanks, 55-gallon drums, 5-gallon buckets)? What 

size are the storage tanks? Is the AFFF stored as a mixed solution (3% or 6%) or concentrated 

material?

Stored in Building 00010, within a cardboard container in thick plastic containers (3 gallons). Stored 

as concentrated. 

10. How many FTAs are/were on this facility and where are they? Locate on a map. How many FTAs 

are active and inactive? For inactive FTAs, when was the last time that fire training using AFFF 

was conducted at them? 

Last use of the truck was 2007, sat here unused for 2 years, then it was auctioned off. Not a current 

FTA. 
PA Interview Questionnaire - Environmental Manager Facility: E.J. Garn Aviation Complex

Interviewer:

Date/Time: 07/16/2019 / 0900

11. When a release of AFFF occurs during a fire training exercise, now and in the past, how is the 

AFFF cleaned and disposed of? Were retention ponds built to store discharged AFFF? Was the 

AFFF trickled to the sanitary sewer or left in the pond to infiltrate?

When Building 00002 was being converted from AFFF in 2008/2009 there were multiple discharge events 

through the nozzles in the building without control. Foam was pushed outside onto concrete and left to 

evaporate.

12. Can you recall specific times when city, county, and/or state personnel came on-post for training? If so, 

please state which state/county agency or military entity? Do you have any records, including 

photographs to share with us?

Municipal uses water. 

13. Did military routinely or occasionally fire train off-post? List the units that you can recall used/trained 

at various areas.

Local unit trained at Salt Lake City Airport. 

14. Did individual units come with their own safety personnel, did they also bring their own AFFF? Was 

training with AFFF part of these exercises? How were emergencies handled under these circumstances?

Units do not bring their own fire protection. 

15. Are there specific emergency response incident reports (i.e., aircraft or vehicle 

crash sites and fires)? If so, may we please copy these reports? Who (entity) was 

the responder?

The Safety Officer would be responsible for that. 
PA Interview Questionnaire - Environmental Manager Facility: E.J. Garn Aviation Complex

Interviewer:

Date/Time: 07/16/2019 / 0900

16. Do you have records of fuel spill logs? Was it common practice to wash away fuel spills with

AFFF? Is/was AFFF used as a precaution in response to fuel releases or emergency runway 

landings to preventfires?

AFFF would only be used for reportable spills (5 gal or more) and there haven’t been any for at least 

20 years. Microblaze used for spills. 

17. Was AFFF used for forest fires or fire management on-post/off-post? If so, please describe what 

happened and who was involved?

Water-only for wildfire firefighting. 

18. Are there mutual aid/use agreements between county, city, and local fire department? Please list, even 

if informal. If formalized, may we have a copy of the agreement?

Not applicable. 

19. Can you provide any other locations where AFFF has been stored, released, or used (i.e. hangars, 

buildings, fire stations, firefighting equipment testing and maintenance areas, emergency response

sites, storm water/surface water, waste treatment plants, and AFFF ponds)?

AFFF is stored in the Building 00010 tent, which was located in two locations on the south side of the 

property. 

20. Are you aware of any other creative uses of AFFF? If so, how was AFFF used? What entities were 

involved?

None
PA Interview Questionnaire - Environmental Manager Facility: E.J. Garn Aviation Complex

Interviewer:

Date/Time: 07/16/2019 / 0900

21. Are there past studies you are aware of with environmental information on plants/animals/ 

groundwater/soil types, etc., such as Integrated Cultural Resources Management Plans or Integrated 

Natural Resources Management Plans?

LUST reports for fuel area, possibly NEPA reports to go with the storage hangar. to provide 

reports. 

22. What other records might be helpful to us (environmental compliance, investigation records, admin 

record) and where can we find them?

Get records from (Facilities Manager), and (Environmental Program Manager)

23. Do you have or did you have a chrome plating shop on base? What were/are the years of operation

of that chrome plating shop?

No

24. Do you know whether the shop has/had a foam blanket mist suppression system or used a fume 

hood for emissionscontrol? If foam blanket mist suppression was used, where was the foam 

stored, mixed, applied, etc.?

NA

25. How is off-spec AFFF disposed (used for training, turned in, or given to a local Fire Station)? If 

applicable, do you know the name of the vendor that removes off-spec AFFF? Do you have copies of 

the manifest or B/L?

NA
PA Interview Questionnaire - Environmental Manager Facility: E.J. Garn Aviation Complex

Interviewer:

Date/Time: 07/16/2019 / 0900

26. Do you recommend anyone else we can interview? If so, do you have contact information for them?

NA
PA Interview Questionnaire - Other Facility: E.J. Garn Aviation Complex

Interviewer: 

Date/Time: 07/16/2019 / 0900

Interviewee: 

Title: Safety Non-Commissioned Officer (NCO) 

 and Hazardous Materials (HAZMAT) Manager 

Phone Number:_________________________

Email:_________________________________

Can your name/role be used in the PA Report? Y or N 

Can you recommend anyone we can interview?

Y or N 

Roles or activities with the Facility/Years working at the Facility:

Heyward has worked at the facility since 1992. He also has knowledge from his father, who has worked at 

the facility since 1977. 

Heyward was on crash rescue from 1995-1999. 

PFAS Use: Identify accidental/intentional release locations, time frame of release, frequency of releases, 

storage container size (maintenance, fire training, firefighting, buildings with suppression systems (as 

builts), fueling stations, crash sites, pest management, recreational, dining facilities, metals plating, or 

waterproofing). How are materials ordered/purchased/disposed/shared with others?

Uses/Releases

Building 00002 has full fire suppression foam system. Building 00010 has full fire suppression, originally 

installed when it was built in 2016. Facility Maintenance Shop (FMS) and Building 00003 have regular 

sprinkler systems (water). 

In 1991/1992 there was a system test in Building 00002. Foam was pushed out of the building onto the 

concrete and left to evaporate. 

1995-1999 AFFF was used at least 2x per year for training purposes. A fire would be simulated, and a crash 

team would respond. Nozzle testing was conducted on the same day. The test was conducted on concrete, 

and foam did not reach the soil. 

1998 – One training event where a full 30 gallon Tri-Max was discharged in the FTA. In the past there were 

16 mobile fire extinguishers (Tri-Max 30 gal units) strategically placed around flight line, a couple at fuel 

island, and several near fire locker. State Fire maintains the extinguishers (hydrostatic testing, etc.). Army 

never refills themselves. Refills are done offsite. No training with Tri-Max. With old systems they had 

training, but now they only use standard handheld fire extinguishers and purple K units. 

In 1997 there was a dumpster fire at Building 00003 was put out with AFFF. 

There was a fire truck at the facility until it was taken out of use in 2007. The truck was auctioned off in 

2009. The fire truck was washed out in the fire truck bay. Tanks on the truck were refilled with 5-gallon

buckets. 3% Foam was used. Building 00001 fire removal ceased in 2008 and the fire trucks were removed 

from the site. 

In 2016 the Building 00004 system was tested. Foam was pushed out of the building onto the concrete and 

left to evaporate. 

Recommend talking to (Facilities Manager) about frequency of testing for suppression 

systems. 
PA Interview Questionnaire - Other Facility: E.J. Garn Aviation Complex

Interviewer: 

Date/Time: 07/16/2019 / 0900

Storage

3% AFFF has been kept in the tent storage from forever to 2009. In April 2009, 12,000 lbs of AFFF

concentrate in 5 gallon containers were taken offsite and given to Dugway. No leaks reported.

Water 

Drinking water is supplied to the site by the city. The source of the city’s groundwater is a well near the 

water tanks to the east. 

A historic irrigation system canal ran around the property line from the pump house to the city’s 

groundwater well. The canal also received stormwater discharge. Canal was filled in in 2013/2014. 

Irrigation water wells are located in the vicinity of the property. 

There is an industrial wastewater permit for the oil/water separator to discharge to the sanitary sewer. 

Snow is removed by pushing the snow to the east off the flightline. 

Depth to water is approximately 200 feet below ground surface.

Other Site Information

Current basic fire protection comes from the municipal fire department. Once a year they simulate a crash

and respond. Use water. 

There have been four plane crashes in the last 8 years in the soccer fields to the south; no fire suppression 

was required. 

Warm fueling is conducted. 

The municipal portion of the airport is to the north; fire control is under municipal jurisdiction. Their 

method of fire suppression is unknown. 

Major industries around the facility include light industrial manufacturing, shipping companies, Tenant 

(floor scrubber company, sales only), welding companies to south, 2 plumbing companies to south. 
PA Interview Questionnaire - Other Facility: E.J. Garn Aviation Complex

Interviewer: 

Date/Time: 07/16/2019 / 1400

Interviewee: ___

Title: ___________________Facilities Manager 

Phone Number:_________________________

Email:_________________________________

Can your name/role be used in the PA Report? Y or N 

Can you recommend anyone we can interview?

Y or N 

Roles or activities with the Facility/Years working at the Facility:

10 years as Facilities Manager

PFAS Use: Identify accidental/intentional release locations, time frame of release, frequency of releases, 

storage container size (maintenance, fire training, firefighting, buildings with suppression systems (as 

builts), fueling stations, crash sites, pest management, recreational, dining facilities, metals plating, or 

waterproofing). How are materials ordered/purchased/disposed/shared with others?

AFFF Tanks

Buildings 00002 and 00004 have AFFF tank. Size of tanks unknown. Current foam is 2% high expansion 

foam. 

In Building 00002, the seal in the bottom of the AFFF tank is leaking. There is a potential bladder rupture 

or seal leaking Next Gen foam. It is unknown if floor drains in the room go to the oil/water separator before 

discharging to the municipal sewer. 

Maintenance/Testing

Pumps are tested with water annually. PFAS was used during initial test only. 

As-Builts

As-builts do not exist. Drawings show pre-design plans only and are not accurate. 
PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

Appendix B.2

Visual Site Inspection Checklists

PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

Appendix B.3

Conceptual Site Model Information



PFAS Preliminary Assessment Report

E.J. Garn Aviation Complex, West Jordan, Utah

Appendix C

Photographic Log
Appendix C - Photographic Log

Army National Guard, Preliminary 

Assessment for PFAS

E.J. Garn Aviation Complex 7563 South 4570 West, West 

Jordan, UT 84084

Preliminary Assessment Report

E.J. Garn Aviation Complex

Perfluorooctane-Sulfonic Acid (PFOS) and

Perfluorooctanoic Acid (PFOA) Impacted Sites

ARNG Installations, Nationwide

Photograph No. 1

Description:

Photograph depicts Building 

00001 (under construction) 

and former fire truck bay.

Orientation:

Northeast

Date 7/16/2019

Time 10:21

Photograph No. 2

Description:

Representative photograph of 

current fire suppression units 

scattered around the airfield.

Orientation:

West

Date 7/16/2019

Time 10:23

AECOM Page 1 of 8
Appendix C - Photographic Log

Army National Guard, Preliminary 

Assessment for PFAS

E.J. Garn Aviation Complex 7563 South 4570 West, West 

Jordan, UT 84084

Preliminary Assessment Report

E.J. Garn Aviation Complex

Perfluorooctane-Sulfonic Acid (PFOS) and

Perfluorooctanoic Acid (PFOA) Impacted Sites

ARNG Installations, Nationwide

Photograph No. 3

Description:

Representative photograph of 

oil/water separator manholes 

at the facility. Depicted 

manholes are on the northeast 

side of the airfield and 

received wash water from the 

fire truck bay.

Orientation:

Southwest

Date 7/16/2019

Time 10:26

Photograph No. 4

Description:

Building 00002 in 

background, with the area of 

the Airfield where AFFF 

evaporated after discharges 

in foreground.

Orientation:

Northwest

Date 7/16/2019

Time 10:50

AECOM Page 2 of 8
Appendix C - Photographic Log

Army National Guard, Preliminary 

Assessment for PFAS

E.J. Garn Aviation Complex 7563 South 4570 West, West 

Jordan, UT 84084

Preliminary Assessment Report

E.J. Garn Aviation Complex

Perfluorooctane-Sulfonic Acid (PFOS) and

Perfluorooctanoic Acid (PFOA) Impacted Sites

ARNG Installations, Nationwide

Photograph No. 5

Description:

Fire suppression discharge 

points in Building 00002.

Orientation:

Northwest

Date 7/16/2019

Time 10:51

Photograph No. 6

Description:

Photograph depicts 

trench drains inside 

Building 00002 and the 

oil/water separator 

outside.

Orientation:

North

Date 7/16/2019

Time 10:49

AECOM Page 3 of 8
Appendix C - Photographic Log

Army National Guard, Preliminary 

Assessment for PFAS

E.J. Garn Aviation Complex 7563 South 4570 West, West 

Jordan, UT 84084

Preliminary Assessment Report

E.J. Garn Aviation Complex

Perfluorooctane-Sulfonic Acid (PFOS) and

Perfluorooctanoic Acid (PFOA) Impacted Sites

ARNG Installations, Nationwide

Photograph No. 7

Description:

Foam discharge locations in 

Building 00004.

Orientation:

North

Date 7/16/2019

Time 10:42

Photograph No. 8

Description:

Fire suppression system in 

Building 00004.

Orientation:

North

Date 7/16/2019

Time 10:46

AECOM Page 4 of 8
Appendix C - Photographic Log

Army National Guard, Preliminary 

Assessment for PFAS

E.J. Garn Aviation Complex 7563 South 4570 West, West 

Jordan, UT 84084

Preliminary Assessment Report

E.J. Garn Aviation Complex

Perfluorooctane-Sulfonic Acid (PFOS) and

Perfluorooctanoic Acid (PFOA) Impacted Sites

ARNG Installations, Nationwide

Photograph No. 9

Description:

Area of Airfield in front of 

Building 00004 where 

AFFF evaporated after 

system test.

Orientation:

South

Date 7/16/2019

Time 10:50

Photograph No. 10

Description:

Photograph depicts current 

Building 00010 location in 

background with former 

Building 00010 location 

(south side of the airfield) 

in the foreground.

Orientation:

West

Date 7/16/2019

Time 10:40

AECOM Page 5 of 8
Appendix C - Photographic Log

Army National Guard, Preliminary 

Assessment for PFAS

E.J. Garn Aviation Complex 7563 South 4570 West, West 

Jordan, UT 84084

Preliminary Assessment Report

E.J. Garn Aviation Complex

Perfluorooctane-Sulfonic Acid (PFOS) and

Perfluorooctanoic Acid (PFOA) Impacted Sites

ARNG Installations, Nationwide

Photograph No. 11

Description:

Photograph depicts the 

runways east of the facility.

Orientation:

Southeast

Date 7/16/2019

Time 10:33

Photograph No. 12

Description:

Catch basins on the east side 

of the facility viewed from the 

north side of the airfield.

Orientation:

South

Date 7/16/2019

Time 10:27

AECOM Page 6 of 8
Appendix C - Photographic Log

Army National Guard, Preliminary 

Assessment for PFAS

E.J. Garn Aviation Complex 7563 South 4570 West, West 

Jordan, UT 84084

Preliminary Assessment Report

E.J. Garn Aviation Complex

Perfluorooctane-Sulfonic Acid (PFOS) and

Perfluorooctanoic Acid (PFOA) Impacted Sites

ARNG Installations, Nationwide

Photograph No. 13

Description:

Closeup of label on Purple K 

mobile unit at fuel point.

Orientation:

North

Date 7/16/2019

Time 10:35

Photograph No. 14

Description:

TriMax unit observed at fuel 

point.

Orientation:

West

Date 7/16/2019

Time 10:37

AECOM Page 7 of 8
Appendix C - Photographic Log

Army National Guard, Preliminary 

Assessment for PFAS

E.J. Garn Aviation Complex 7563 South 4570 West, West 

Jordan, UT 84084

Preliminary Assessment Report

E.J. Garn Aviation Complex

Perfluorooctane-Sulfonic Acid (PFOS) and

Perfluorooctanoic Acid (PFOA) Impacted Sites

ARNG Installations, Nationwide

Photograph No. 15

Description:

Location of 1997 dumpster 

fire at Building 00003.

Orientation:

West

Date 7/16/2019

Time 10:14

AECOM Page 8 of 8