EPA/600/B-20/364 | September 2020 | www.epa.gov/research

SrEPA

United States
Environmental Protection
Agency

UST Finder

User	G

Office of Research and Development

Center for Environmental Solutions and Emergency Response
Land Remediation and Technology Division


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UST Finder

User Guide

Alex Hall
USTFinder@epa.gov

Land Remediation and Technology Division
Center for Environmental Solutions and Emergency Response

Cincinnati, Ohio, 45268

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Notice/Disclaimer

The U.S. Environmental Protection Agency, through its Office of Research and Development,
funded and conducted the research described herein under an approved Quality Assurance
Project Plan (Quality Assurance Identification Number G-LMMD-0031994-QP-l-l). It has been
subjected to the Agency's peer and administrative review and has been approved for publication
as an EPA document. Mention of trade names or commercial products does not constitute
endorsement or recommendation for use.


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Foreword

The U.S. Environmental Protection Agency (US EPA) is charged by Congress with protecting
the Nation's land, air, and water resources. Under a mandate of national environmental laws, the
Agency strives to formulate and implement actions leading to a compatible balance between
human activities and the ability of natural systems to support and nurture life. To meet this
mandate, US EPA's research program is providing data and technical support for solving
environmental problems today and building a science knowledge base necessary to manage our
ecological resources wisely, understand how pollutants affect our health, and prevent or reduce
environmental risks in the future.

The Center for Environmental Solutions and Emergency Response (CESER) within the Office of
Research and Development (ORD) conducts applied, stakeholder-driven research and provides
responsive technical support to help solve the Nation's environmental challenges. The Center's
research focuses on innovative approaches to address environmental challenges associated with
the built environment. We develop technologies and decision-support tools to help safeguard
public water systems and groundwater, guide sustainable materials management, remediate sites
from traditional contamination sources and emerging environmental stressors, and address
potential threats from terrorism and natural disasters. CESER collaborates with both public and
private sector partners to foster technologies that improve the effectiveness and reduce the cost
of compliance, while anticipating emerging problems. We provide technical support to EPA
regions and programs, states, tribal nations, and federal partners, and serve as the interagency
liaison for EPA in homeland security research and technology. The Center is a leader in
providing scientific solutions to protect human health and the environment.

Gregory Sayles, Director

Center for Environmental Solutions and Emergency Response

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Abstract

This user guide is a companion to EPA's UST Finder application. It is a step-by-step guide on
how to navigate the UST Finder application as well as methods used and background material.
You can access UST Finder by clicking here or copying and pasting this link into a browser:
https://gispub.epa.gov/ustfinder

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Table of Contents

Notice/Disclaimer	iii

Foreword	iv

Abstract	v

List of Figures	ix

List of Tables	x

Acronyms and Abbreviations	xi

1.	Background	1

1.1.	Disclaimer of Liability	1

2.	Data Dictionary	1

2.1.	Underground Storage Tank Facility Attributes	2

2.2.	Underground Storage Tank Attributes	4

2.3.	Underground Storage Tank Release Attributes	4

3.	UST Finder Layer List	7

3.1.	Facilities by County Layer	8

3.2.	Releases by County Layer	8

3.3.	UST Releases Layer	9

3.3.1.	Facility and LUST ID	9

3.3.2.	Locational Information	9

3.3.3.	Reported Date	10

3.3.4.	Release Status	10

3.3.5.	Substance Released	10

3.3.6.	Estimated Population	11

3.3.7.	Estimated Private Domestic Wells	11

3.3.8.	Land Use	11

3.3.9.	Wellhead and Surface Water Source Water Protection Areas	11

3.3.10.	100-year Floodplain	12

3.4.	UST Facilities Layer	13

3.4.1.	Facility ID	13

3.4.2.	Locational Information	13

3.4.3.	Tank Counts	13

3.4.4.	Facility Status	14

3.4.5.	Estimated Population	14

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3.4.6.	Estimated Private Domestic Wells	14

3.4.7.	Land Use	14

3.4.8.	Wellhead and Surface Water Source Water Protection Areas	14

3.4.9.	100-year Floodplain	14

3.4.10.	Tank Capacities in Pop-up	14

3.5.	UST Table	15

3.5.1.	Tank ID	15

3.5.2.	Installation Date	15

3.5.3.	Removal Date	15

3.5.4.	Capacity	15

3.5.5.	Substance	15

3.5.6.	Tank Wall Type	16

3.6.	Viewing UST Attributes	16

3.6.1.	Viewing USTs information within the UST Facilities Pop-up	16

3.6.2.	Viewing all USTs at a UST Facility via pop-ups and attribute table	17

3.6.3.	Viewing all USTs at a facility via the attribute table	18

4.	Attribute Tables	19

4.1.	Export to CSV	20

4.2.	Attribute Filter	20

5.	Widgets	21

5.1.	Filter	22

5.2.	Near Me	23

5.3.	Info Summary	24

5.4.	Area of Interest Report	25

5.5.	Time Slider	27

5.6.	Share	28

6.	Basemaps and Adding External Data	29

6.1.	Basemaps	29

6.2.	Add Data	30

6.2.1.	Add Data via Search	31

6.2.2.	Add Data via URL	31

6.2.3.	Add Data via File	31

7.	UST Finder Source Data	31

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7.1.	Underground Storage Tank Data Sources	31

7.2.	Underground Storage Tank Facilities Data Sources	32

7.3.	Underground Storage Tank Releases Data Sources	34

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List of Figures

Figure 1. UST Finder Layer List	6

Figure 2. Facilities by County layer pop-up	7

Figure 3. Releases by County layer pop-up	7

Figure 4. UST Releases layer pop-up	8

Figure 5. UST Facilities	12

Figure 6. Tank Capacity Bar Chart	13

Figure 7. USTs Layer in the Layer List menu	14

Figure 8. Selecting USTs in the related table	15

Figure 9. Getting information about a UST through the UST Facilities pop-up menu	16

Figure 10. Selecting USTs from the related table	17

Figure 11. View attribute table in the UST menu	17

Figure 12. Attribute table of USTs at a UST Facility	18

Figure 13. Steps for viewing USTs via facilities' attribute table	18

Figure 14. Attribute table	19

Figure 15. Custom attribute query	20

Figure 16. Compound attribute query	20

Figure 17. Widgets in UST Finder	21

Figure 18. Filter Widget	21

Figure 19. Compounding Filter	22

Figure 20. Custom Filter	22

Figure 21. Near Me Widget	23

Figure 22. Info Summary Widget	24

Figure 23. Area of Interest Report: Draw Polygon	26

Figure 24. Area of Interest Report	27

Figure 25. Time Slider Widget	28

Figure 26. Share Widget	29

Figure 27. Using different basemaps	30

Figure 28. Searching and adding external data via ArcGIS online	31

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List of Tables

Table 2.1 Basic Facility Descriptions	1

Table 2.2 UST Attributes	2

Table 2.3 UST Release Attributes	4

Table 3.1 Substance Release Data by State	9

Table 5.1 States with Release Dates	27

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Acronyms and Abbreviations

GIS

Geographic Information System

HUC

Hydrologic Unit Code

LUST

Leaking Underground Storage Tank

NLCD

National Land Cover Database

PWSID

Public Water System Identification

SDWIS

Safe Drinking Water Information System

SPA

Surface Water Protection Area

SWPA

Source Water Protection Area

TOS

Temporarily Out of Service

UST

Underground Storage Tank

WHPA

Wellhead Protection Area

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1. Background

UST Finder is an online mapping tool providing access to localized information on the attributes
and locations of leaking underground storage tanks (LUSTs), underground storage tank (UST)
facilities, and underground storage tanks. UST Finder integrates static, state sourced data as of
2018-2019. This state sourced data was curated and standardized to create a national profile of
the 2018-2019 UST universe by EPA's Office of Underground Storage Tanks, Office of
Research and Development, and the Association of State and Territorial Solid Waste
Management Officials.

UST Finder and associated data are publicly available and free to use. Located on EPA's
GeoPlatform, it incorporates UST data into a user-friendly GIS environment where stakeholders,
decision-makers, and emergency responders can easily access UST information on a computer,
tablet or smartphone.

1.1. Disclaimer of Liability

U.S. EPA has published this information as a convenience to the user. Although U.S. EPA
has made every effort to ensure the accuracy of the information posted through this
application, users should not rely on information relating to environmental laws and
regulations posted on this application. Data users are solely responsible for ensuring that
they are in compliance with all relevant environmental laws and regulations. More
specifically, with respect to the application and its documentation and any data or other
information obtained through the application, neither the U.S. Government nor any of its
employees, makes any warranty, express or implied, including the warranties of
merchantability and fitness for a particular purpose, or assumes any legal liability or
responsibility for the accuracy, completeness, or usefulness of any information, data
apparatus, product, or process disclosed, or represents that its use would not infringe
privately owned rights. The data are collected from various sources, including those from
outside the federal government, and may be modified over time without notice to improve
spatial and attribute accuracy. U.S. EPA disclaims responsibility for the spatial accuracy
and attribution of GIS features and makes no warranty concerning the same.

Execution of the application, user downloading of data, and any modification to the user's
system configuration files must be conducted at the user's own risk. This data may not be
completely free of errors and may not be applicable for all purposes. In no event will the U.S.
EPA be liable for direct, indirect, special, incidental, or consequential damages arising out of the
use of the application, user-downloaded data, and/or associated documentation.

2. Data Dictionary

Below are the attribute descriptions of underground storage tank facilities, underground storage
tanks, and leaking underground storage tanks.


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2.1. Underground Storage Tank Facility Attributes

Table 2.1: UST Facility Attributes

UST Facility Attributes

Description

Facility ID1

Concatenated state abbreviation and facility ID

Name1

Facility name

Address1

Facility address

City1

Facility city

County1

Facility county

State1

Facility state

Zip Code1

Facility zip code

Latitude12

Facility latitude

Longitude1,2

Facility longitude

Coordinate Source2

The source of the facility's coordinates. Either 'State' sourced
or 'Geocode'.

Address Match Type2

The geocoded address type. For more information click here.
For either state or geocoded coordinate sources, if the facility
was outside of its state boundary, it is labeled 'Fail' and no
coordinates are mapped.

Open USTs1'2

Count of open USTs

Closed USTs1'2

Count of closed USTs

Temporarily Out of Service USTs1,2

Count of temporarily out of service USTs

Estimated Population within

Estimated 2010 census derived population within 1,500 ft of a

1500ft*2

facility. ArcGIS's Tabulate Intersection tool was used to
calculate 1,500 ft facility buffers to census block population.

Estimated Private Domestic Wells

Estimated private domestic wells within 1,500 ft of a facility.

within 1500ft*2

ArcGIS's Tabulate Intersection tool was used to calculate
1500ft facility buffers to EPA estimated private domestic wells.
For more information and to access national well estimates
visit EPA's Well Mao.

Within 100-year Floodplain*2

Denotes ('Yes'/'No') whether a facility is within the EPA
estimated 100-year floodplain for the conterminous United
States. For more information click here.

Land Use*2

The majority land use type within 300 ft of a facility. Land use
data is derived from the 2016 National Land Cover Database.
Facility land use are identified as developed (open, low,
medium, high intensity) or 'non-developed' (encompassing the
remaining land use classes).

Within Source Water Protection*2

Identifies a facility within a federally delineated surface water,

Area (SWPA)

source water protection area ('Yes' or 'No'). SPA's are areas of

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SWPA Public Water System and
Facility ID (PWSID)*2

SPA Water Type*2

SPA Facility Type*2

SPA HUC12*2

Within Groundwater Wellhead
Protection Area (WHPA)*2

WHPA Public Water System and
Facility ID*2

WHPA Water Type*2
WHPA Facility Type*2
WHPA HUC12*2

interest for the protection of surface water sources of drinking
water.

By identifying areas significant to drinking water source
protection while obscuring the exact locations of intake
facilities, this information gives a wide range of planners,
policy makers, and practitioners the information needed to
target and prioritize areas for protection.

Concatenated PWSID (ID that uniquely identifies a Public
Water System) and Facility ID (Water system facility ID that,
when used with the PWSID, uniquely identifies a water system
facility. Note: Facilities from different water systems may have
the same Facility ID. There may be repeat Facility ID values).
Code that indicates the source of the water.

SW Surface water

GU Ground water under the influence of surface water

Code that indicates the type of water system facility.
IG Infiltration Gallery
IN Intake
RS Reservoir
SP Spring
WL Well

HUC (Hydrologic Unit Code) determination made with EPA
WATERS Web Services and NHDPIus.

Identifies a facility within a federally delineated wellhead,
source water protection area ('Yes' or 'No'). WHPA's are areas
of interest for the protection of groundwater sources of
drinking water.

By identifying areas significant to drinking water source
protection while obscuring the exact locations of intake
facilities, this information gives a wide range of planners,
policy makers, and practitioners the information needed to
target and prioritize areas for protection.

Concatenated PWSID (ID that uniquely identifies a Public
Water System) and Facility ID (Water system facility ID that,
when used with the PWSID, uniquely identifies a water system
facility. Note: Facilities from different water systems may have
the same Facility ID. There may be repeat Facility ID values).
Code that indicates the source of the water.

GW Ground water

Code that indicates the type of water system facility.
SP Spring
WL Well

HUC (Hydrologic Unit Code) determination made with EPA
WATERS Web Services and NHDPIus.

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Facility Status1 'Open UST(s)' identifies facilities with at least one open or
temporarily out of service UST. 'Closed UST(s)' identifies
facilities with only closed UST(s).

1	State sourced information

2	EPA generated information

* These fields are only considered for facilities whose coordinates are state sourced or facilities whose address
match type are 'StreetAddress', 'Streetlnt', 'Subaddress', or 'PointAddress'.

2.2. Underground Storage Tank Attributes

UST attributes are included for 49 states and DC (not available for Idaho).
Table 2.2: UST Attributes

USTs Attributes

Description

State1

UST State

Facility ID1

Facility ID that can be related to the UST facilities layer

Tank ID1

Unique UST ID (typically in the following format: "Facility
ID"&"_"&"Tank Number")

Tank Status1

Tank Status

Installation Date1

Date of UST installation

Removal Date1

Date of UST removal

Capacity1

Tank capacity in gallons

Substances1

Substance stored (may be multiple entries representing fuel
types in multiple compartments).

Tank Wall Type1

Tank wall type (either single or double)

1 State sourced information

2.3. Underground Storage Tank Release Attributes

Table 2.3: UST Release Attributes

UST Releases Attributes

Description

Facility ID1

Concatenated state abbreviation and facility ID

LUST ID1

Concatenated state abbreviation and LUST ID

Name1

Release name

Address1

Release address

City1

Release city

County1

Release county

Zip Code1

Release zip code

State1

Release state

Latitude12

Release latitude

Longitude1-2

Release longitude

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Coordinate Source2
Address Match Type2

Reported Date1
Status1

Substance1
Estimated Population within
1500ft*2

Estimated Private Domestic
Wells within 1500ft*2

Land Use*2

Within Source Water Protection
Area (SPA)*2

SPA Public Water System and
Facility ID (PWSID)*2

SPA Water Type*2

SPA Facility Type*2

SPA HUC12*2

The source of the release's coordinates. Either 'State' sourced or
'Geocode'.

The geocoded address type. For more information click here. For
either state or geocoded coordinate sources, if the facility was
outside of its state boundary, it is labeled 'Fail' and no coordinates
are mapped.

The date the release reported or discovered

The status of the release (as of date of data collection). Either

"Open" or "No Further Action" or "Unknown".

The substance released

Estimated 2010 census derived population within 1,500 ft of a
release. ArcGIS's Tabulate Intersection tool was used to calculate
1,500 ft release buffers to census block population.

Estimated private domestic wells within 1500ft of a release.
ArcGIS's Tabulate Intersection tool was used to calculate 1500 ft
release buffers to EPA estimated private domestic wells. For more
information and to access national well estimates visit EPA's
Private Domestic Well Map.

The majority land use type within 300 ft of a release. Land use data
is derived from the 2016 National Land Cover Database. Release
land use are identified as developed (open, low, medium, high
intensity) or 'non-developed' (encompassing the remaining land
use classes).

Identifies a facility within a federally delineated surface water,
source water protection area ('Yes' or 'No'). SPA's are areas of
interest for the protection of surface water sources of drinking
water. By identifying areas significant to drinking water source
protection while obscuring the exact locations of intake facilities,
this information gives a wide range of planners, policy makers, and
practitioners the information needed to target and prioritize areas
for protection.

Concatenated PWSID (ID that uniquely identifies a Public Water
System) and Facility ID (Water system facility ID that, when used
with the PWSID, uniquely identifies a water system facility. Note:
Facilities from different water systems may have the same Facility
ID. There may be repeat Facility ID values).

Code that indicates the source of the water.

SW Surface water

GU Ground water under the influence of surface water
Code that indicates the type of water system facility.
IG Infiltration Gallery
IN Intake
RS Reservoir
SP Spring
WL Well

HUC (Hydrologic Unit Code) determination made with EPA
WATERS Web Services and NHDPIus.

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Within Groundwater Wellhead

Identifies a facility within a federally delineated wellhead, source

Protection Area (WHPA)*2

water protection area ('Yes' or 'No'). WHPA's are areas of interest



for the protection of groundwater sources of drinking water.



By identifying areas significant to drinking water source protection



while obscuring the exact locations of intake facilities, this



information gives a wide range of planners, policy makers, and



practitioners the information needed to target and prioritize areas



for protection.

WHPA Public Water System and

Code that indicates the source of the water.

Facility ID*2

GW Ground water



SW Surface water



GU Ground water under the influence of surface water

WHPA Water Type*2

Code that indicates the source of the water.



GW Ground water



SW Surface water



GU Ground water under the influence of surface water

WHPA Facility Type*2

Code that indicates the type of water system facility.



IG Infiltration Gallery



IN Intake



RS Reservoir



SP Spring



WL Well

WHPA HUC12*2

HUC (Hydrologic Unit Code) determination made with EPA



WATERS Web Services and NHDPIus.

Within Estimated 100-year

Denotes ("Yes"/"No") whether a release is within the EPA

Floodplain*2

estimated 100-year floodplain for the conterminous United States.



For more information click here.

1	State sourced information

2	EPA generated information

* These fields are only considered for facilities whose coordinates are state sourced or facilities whose address
match type are 'StreetAddress', 'Streetlnt', 'Subaddress', or 'PointAddress'.

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3. UST Finder Layer List

This section will describe the five datasets in the UST Finder Layer List shown in red below.

QSB

Q	States

Q	Facilities by County

LJ	Releases by County

II	USTs

@00

.'/11- .1.—1

Figure 1. UST Finder's Layer List

Layers can be turned on and off from the layer list
window. Some layers are scale dependent, meaning they
cannot be activated until you either zoom in or out. If a
layer's name is in grey, it means the layer is not available
at that scale.

Below is a description of the 5 layers available in UST
Finder.

You can manually change the scale at which
layers become visible by clicking the ellipsis
next to the layer name and manually "Set
Visibility Range".

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3.1. Facilities by County Layer

The Facilities by County layer is
an aggregation of facilities and
tanks at the county level. Each
county contains information on the
number of facilities (both facilities
that no longer have active USTs
and facilities with USTs actively in
use), the number of open USTs,
closed USTs, and temporarily out
of service (TOS) USTs. Click a
county to view a pop-up with this
county level information.

Figure 2. Facilities by County layer pop-up

3.2. Releases by County Layer

The Releases by County layer is
an aggregation of releases at the
county level. Each county
contains information on the total
number of releases and the
number of releases by status—
both open and no further action/
closed. Click a county to view a
pop-up with this county level
information.

Figure 3. Releases by County layer pop-up

©Click the Legend widget to view the color classes for each feature

'*[ake
Superior

County
State

Population
Facility Count
J Open USTs
¦ Closed USTs
I Temporarily Out c

—^

W Zoom to

Winneshiek

20,893

Toronti

/ice USTs 0

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3.3. UST Releases Layer

The Releases layer is vi sible
when zoomed in from the
county level aggregations.
Releases are color classified as
active (red points), no further
action (pink points) or
unknown (grey points).

In addition to the locations of
releases, each release has
associated data. Associated
data can be viewed in pop-ups
or the feature's attribute table,
discussed later.

Oak Glen Golf
Course

4

ihStN







3 ? '

South Lift Station

0

1

3

/

~ f

'ft* 1

Oi \

Facility ID
LUST ID

MN105280
MNLS0005727

l/l

z

\

StilJjWateK.

Name

South Lift





Station

^rtle St W

n \

Address

741 S Main St





City

Stillwater

(/)
Cn

County
Zip Code

Washington
55082

xf.

i/i

•

State

Minnesota

O



Latitude

45.0508

«0



Longitude

-92.8013

••

o

• &

Coordinate Source

State

•

o •§•
»

Address Match Type



Oak Park
Heights

>

< \

n

Z

Reported Date

9/29/1992

•••





Figure 4. UST Releases layer pop-up

3.3.1.	Facility and LUST ID

Some attributes are state sourced, and others are EPA generated. In most instances the Facility
ID and LUST ID (the numbers after the state abbreviation) are the state issued IDs. These IDs
reference individual state databases—where potentially more information about LUST sites can
be found.

3.3.2.	Locational Information

If coordinates (Latitude and Longitude) were provided by the state, they were used to map the
LUST site. If no coordinates were provided, EPA geocoded the state sourced Address. The
Coordinate Source field identifies whether the coordinates were state sourced or geocoded. If
geocoded, the Address Match Type identifies how the address was matched (i.e. by postal zip
code, point address, street name, etc.).

The amount of time permitted before providing notification as well
as the reportable quantity threshold vary by implementing agency.
The reportable quantity of releases is not available in UST finder
nor the source, type, or extent of release.

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3.3.3. Reported Date

The Reported Date field is either the date the release was
discovered or reported to the state. Note that these dates are
not available for all states and releases.

The year in which states started
collecting LUST data—and thus
available in UST Finder—varies
by state. In general, most
states started cataloging
releases by 1989.

3.3.4.	Release Status

There are three release Status types: Open, No Further Action, and Unknown. It should be noted
that individual states set their own criteria for what defines an open or closed release. An open
release generally means the LUST site has not been remediated and is undergoing assessment,
treatment and/or monitoring. For Kentucky, all the releases statuses are unknown.

3.3.5.	Substance Released

The Substance field contains the substance associated at the UST release site. A site can have
one or many substances released. The substance naming convention is not standardized between
states. Table 3.1 lists the 17 states with substance release information.

Table 3.1: Substance Release Data by State

State

Number of sites with
substances released

Arizona

8,547

Arkansas

1,337

DC

1,432

Illinois

21,789

Kansas

6,057

Louisiana

1,084

Maine

3,101

Michigan

17,300

Minnesota

1,664

Nebraska

8,381

Nevada

1,706

Oklahoma

4,072

Pennsylvania

7,623

South Carolina

9,443

South Dakota

2,984

Vermont

2,182

Washington

2,863

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The remaining descriptions or UST Release attributes are EPA generated.

3.3.6.	Estimated Population

The Estimated Population within 1500 ft field provides an estimate of the number of people
living within 1,500 ft of a release. The 2010 Census blocks were used for the population data.
1,500-foot buffers were generated for each release and populations were estimated by the percent
buffer intersection to each overlapping census block. These calculations were only performed for
releases with coordinates provided by states or geocoded address match types of 'StreetAddress',
'Streetlnt', 'Subaddress', or 'PointAddress'.

3.3.7.	Estimated Private Domestic Wells

The Estimated Private Domestic Wells within 1500 ft field provides estimates of the housing
units using private domestic wells as their primary source of water. These well estimates were
developed by the EPA. The data provide improved estimates of the dependence and spatial
distribution of housing units reliant on private domestic by census block. In order to capture the
potential vulnerability of private drinking water wells to leaking underground storage tanks, UST
Finder calculated 1,500 ft buffers for each release and tabulated the intersection of wells at the
census block level.

3.3.8.	Land Use

The Land Use type around release sites is calculated using data from the National Land Cover
Database (NLCD). Knowing the land use type near release sites can suggest whether a site is in
an urban or rural area, for example. Assigning development types (either developed-low,
medium or high intensity) to releases sites can suggest the number of people, building, and level
of development nearby. This can help inform, for example, remediation strategies. In-situ
bioventing or biosparging may not be an appropriate remediation strategy in high intensity
developed area due to the risk of vapor intrusion to nearby buildings. Land Use was calculated
by assigning the majority land use type to a 300 ft buffer around release sites. If the majority
land use type was not a "developed" land use type, "non-developed" was assigned.

3.3.9.	Wellhead and Surface Water Source Water Protection Areas

The UST Release layer also provides information on whether a release site is Within a Source
Water Protection Area (SPA) or Within a Groundwater Wellhead Protection Area (WHPA).

This information is generated by U.S. Environmental Protection Agency Office of Water and
provides source water protection areas for surface water source facilities as well as wellhead
protection areas for groundwater sources. The sources for this GIS analysis are the Safe Drinking
Water Information System (SDWIS) Federal Data Warehouse and the National Hydrography
Dataset Version 2.1 (NHDPlus) (https://www.epa.gov/waterdata/nhdplus-national-data).

The EPA Source Water Protection Area (SPA) dataset provides spatially referenced source water
protection areas for public drinking water system (PWS) source facilities located in the United
States. Source facility location data were obtained from the Safe Drinking Water Information

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System/Federal Version (SDWIS/Fed) and include active surface water facilities (e.g., intakes,
reservoirs, infiltration galleries, and springs) with a Water Type description of 'surface water'
(SW) or 'ground water under the influence of surface water' (GU). Ground water facilities (e.g.,
wells) with valid locations (lat/long coordinates) and a Water Type description of ground water
are also included as Wellhead Protection Areas (WHPAs). Surface water (SPA) delineations in
the CONUS, Hawaii, U.S. Virgin Islands, and Puerto Rico are composed of National
Hydrography Dataset Plus version 2.1 catchments located 24-hour time of travel upstream of all
valid surface water source facility locations, while ground water protection areas (WHPAs) are
composed of NHDPlus V 2.1 catchments that intersect wells. SPA and WHPA delineations in
Alaska represent a 1-mile buffer radius due to limited availability of NHDPlus catchments in
Alaska.

While these protection areas and locations of public drinking water intakes are not public
information, UST Finder obscures the exact boundaries/locations by providing binary operators
to identify whether or not a release is within a source water protection or ground water protection
area, with either a "Yes" or "No". By identifying areas significant to drinking water source
protection while obscuring the exact locations of intake facilities, this dataset gives a wide range
of planners, policy makers, and practitioners the information needed to target and prioritize areas
for protection in proximity to UST releases.

The WHPA and SPA Public Water System and Facility ID is the concatenated PWSID and
FAdLITYID which uniquely identifies a water system facility in one field.

3.3.10. 100-year Floodplain

The Within 100-year Floodplain field provides information on whether a UST release is within
an estimated flood inundation area. The data used for identifying these zones is a flood
inundation model that estimates FEMA's Flood Insurance Rate Maps (FIRMs) for the
conterminous United States. Because of the high cost of FEMA flood modeling, only 60% of the
conterminous United States have 100-year floodplains mapped. To fill in these "gaps" the US
EPA developed this product to support research and online mapping activities related to the
EnviroAtlas. The model hit rate for the CONUS was 0.79 compared to the FIRM, indicating that
the model captured 79% of the 100-year floodplain identified by FEMA. Releases are identified
to be within the estimated 100-year floodplain by either a "Yes" or "No". For more information
on this product or to download, visit the service here.

12


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3.4. UST Facilities Layer

The UST Facilities
layer provides
information on
facilities that
currently have (as
of 2018-2019) at
least one open or
temporarily out of
service (TOS) UST
(shown in blue in
Figure 5) as well as
historical

facilities—facilities
that have no active
or TOS USTs
(shown in light
blue in Figure 5).

In addition to the locations of releases, each release has associated data. Associated data can be
viewed in pop-ups or the feature's attribute table.

3.4.1.	Facility ID

Some attributes are state sourced, and others are EPA generated. In most instances the Facility
ID (the numbers after the state abbreviation) are state issued IDs. These IDs reference individual
state database—where potentially more information about facilities can be found.

3.4.2.	Locational Information

If coordinates (Latitude and Longitude) were provided by the state, they were used to map the
facility. If no coordinates were provided, the EPA geocoded the state sourced Address. The
Coordinate Source field identifies whether the coordinates were state sourced or geocoded. If
geocoded, the Address Match Type identifies how the address was matched (i.e. by postal zip
code, point address, street name, etc.).

3.4.3.	Tank Counts

The Open USTs. Closed USTs. and Temporarily out of Service USTs fields list the number of
individual tanks, by status, at the facilities location as of 2018-2019. For most states, these
counts were calculated from the Underground Storage Tank table.

Figure 5. UST Facilities

13


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3.4.4.	Facility Status

The Facility Status field identifies whether a facility currently has one or more open or TOS
tanks, or whether it is a legacy facility—one with only closed tanks.

The following attributes are similar to the UST Releases dataset. See the linked releases
descriptions for more information

3.4.5.	Estimated Population

See the Estimated Population within 1500 ft description here.

3.4.6.	Estimated Private Domestic Wells

See the Estimated Private Domestic Wells within 1500 ft description here.

3.4.7.	Land Use

See the Land Use description here.

3.4.8.	Wellhead and Surface Water Source Water Protection Areas

See the Wellhead and Surface Water Source Water Protection Area description here.

3.4.9.100-year Flood plain

See the estimated 100-vear Floodplain description here.

3.4.10. Tank Capacities in Pop-up
For most facilities, within the pop-up window, there
is a bar chart of tank capacities for each tank at a
given facility. This chart provides the capacity for
every open, closed, and TOS tank at a facility.

Hover over a bar to see the tank number associated
with the tank capacity.

Figure 6. Tank Capacity Bar Chart


-------
3.5. UST Table

The UST table is non-spatial data containing information on
USTs for 49 states and Washington D.C. (excluding Idaho).
UST information is contained in a stand-alone table. This table
is related to each facility in a 1-many relationship, meaning for
most facility, one or many tanks are linked by a common
Facility ID. UST attributes can be found in the USTs attribute
table or through the facilities pop-up window, discussed later.

3.5.1. Tank ID

The UST Tank ID is the unique tank ID number. Typically, the
Tank ID is the concatenated Facility ID and tank number.

Q	Facilities

l~l	Releases
~

Q	Fi

3.5.2. Installation Date	Figure 7. USTs Layer in the

The UST Installation Date is the date the UST was installed, if Layer List menu
provided by the corresponding state agency.

3.5.3. Removal Date

If the UST was removed from the ground, a Removal Date is given, if this information was
provided by the corresponding state agency.

3.5.4. Capacity

In gallons, the Capacity of the tank. If the tank contained compartments, the compartment
capacity was summed together to get a total tank capacity.

For California, individual tank compartments are treated as an individual tank. You can discern
whether a California entry is a non-compartmentalized tank or compartment by the Tank ID.
They CA Tank ID syntax is "CA"&[Facility ID]&"_"&"A Stand-alone Tank" or "One in a
Compartment Unit"&"_"&[number of compartments].

Note that some state use 99, 999, 9999, 99999, etc. as null placeholders for tank capacities. If a
tank's capacity is a series of nines, it should most likely be treated as "null".

3.5.5. Substance

If available in state databases, the Substance stored in the UST is listed. Every state has a
different substance classification system. For example, one state may use the term "gasoline" to
encompass different ethanol blends, premium and standard, leaded (historic) and unleaded, etc.;
while another state list the unique types of gasoline (i.e. El 5). Given the disparity in defining
substance types between states, one should be careful comparing the substances stored from state
to state.

15


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Not all USTs are federally regulated. Tanks containing home heating oil consumed on site, for
example, is not a federally regulated tank. The goal of UST Finder was to catalog federally
regulated tanks (for more information on UST laws and regulations visit here). When possible,
non-regulated tanks were not included. If for example a state classified a tank as non-federally
regulated, that tank was not included; or if a tank was identified to contain home heating oil and
was consumed on site, that tank was not included. However, there are states and instances where
the regulated, non-regulated distinction could not be made, and non-federally regulated tanks
may have been included in UST Finder.

Some Substance entries contain more than one substance. For the most part, this is due to either
listing the substances in multiple individual compartments or listing the substances previously
stored in the tanks.

3.5.6. Tank Wall Type

The Tank Wall Type identifies whether the tank is "Single" walled or "Double" walled.

3.6. Viewing UST Attributes

Mentioned previously, the UST table is related to the facilities table. This section will discuss
several ways to view UST attributes associated with an UST Facility.

3.6.1. Viewing USTs information within the UST Facilities Pop-up

For every facility with related UST data, you can view the UST information via the UST

Facilities' pop-up.

Step 1: Click a UST Facility to enable the pop-up and scroll to the bottom of the pop-up and
select Related tables —> USTs



Figure 8. Selecting USTs in the related table

Step 2: From the Related Records menu, you can see the individual tanks at a facility. Figure 9

16


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shows there are eight USTs at this facility. By default, the tanks are listed by their unique tank
ID, but they can also be listed by other attributes (below it was switched to UST "status") by
selecting the down arrow. Click an UST to get more information about the individual tank.

Related records:
FL8731782-5
FL8731782-6
FL8731782-7
FL8731782-8
FL8731782-1
FL8731782-2
FL8731782-3
FL8731782-4

n X (2 of 2)



9R e I atec^g^jj

£	Oper^^^^m

o	Open

O	Open

^	Closed

£	Closed

£	Closed

£	Closed

USTs

USTs: Open

State	Florida

Facility ID	FL8731782

0 Tank ID	FL8731782-5

Tank Status	Open

® Installation Date	5/1/2001

Removal Date

q Capacity	10,000

O rlZ7ryPe
o

Related tables:

Unleaded Gas

Figure9. Getting information about a UST through the UST Facilities pop-up menu

3.6.2. Viewing all USTs at a UST Facility via pop-ups and attribute table

You can view all USTs at a given UST Facility by opening a facility pop-up and then viewing

the tanks at that facility in the attribute table.

Step 1: Click a UST Facility to enable the pop-up and scroll to the bottom of the pop-up and
select Related tables —> USTs

l	—'

Figure 4. Selecting USTs from the related
table

17


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Step 2: Click the ellipses in the UST window and select View in Attribute Table (Figure 11),
which will expand the attribute table of all USTs at the facility (Figure 12).

H-|l|

<- USTs



Related records:

-

GA1370072.5

o

GA1370072.6

o

GA1370072.1

o

GA1370072.2

o

GA1370072.3

o

GA1370072.4

o

£ Statistics...

View in Attribute Table

Figure 11. View attribute table in the UST menu

• jnfi a

5 " 5 > ferry lake

. \ ® 1

LRl.

MH 1 1 1 1 1 1

i > v (dffil

¦Graph. INCREMENT 9, MEH/NASA. IJST.S, EPA. NPS, US Cim- ' 1 1 1

or-!

9- Gf Refresh



Stale Facility ID

Georgia GA1370072
Georgia GA1370072
Georgia GA1370072
Georgia GA1370072
Georgia GA137Q072
Georgia GA1370072

6 records 0 selected

Tank ID Tank Status Installation Date Removal Date Capacity

GA1370072_S Open 4/14/2008 12,000
6A137007Z.6 Open 4/14/2008 12,000
GA1370072.1 Closed 4/3/1978 10,000
GA1370072_2 Closed 4/3/1978 10,000
GAl370072_3 Closed 4/3/1978 10,000
GA1370072_4 Closed 4/3/19/8 1,000

Substances Tank Wall Type

Gas (Historical Use) Double
Diesel Double
Gas (Historical Use) Single
Gas (Historical Use) Single
Diesel Single
Used Oil Single

Figurel2. Attribute table of USTs at a UST Facility

3.6.3. Viewing all USTs at a facility via the attribute table

You can see all USTs at a given UST Facility(ies) by opening the facilities' attribute table.

18


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Select the attribute table symbol (1), select a facility from the attribute table (2), select Options
(3), select Show related records (4), and select USTs (5)—see Figure 13.

.(mm

D

©OO



• • 1 •



County	State	Zip Code Latitude	Longitude Coordinate Address	Open USTs Closed USTs Temporarily Facility	®

Source	Match Type	Out of	Status

Service USTs

¦
-------
of the attribute table, select the layer you want to view the attributes of—either Facilities,
Releases, or USTs. Note that the attribute table only shows the features within the current map
extent. The bottom left of the table shows the number of facilities or releases within the map
extent and in the attribute table. By default, the "Filter by map extent" I	I button is

turned on. Deselecting this button returns all features (not just the ones within the map extent) to
the attribute table. You can select an individual release or facility by clicking to the left of a row.
When a row is selected you can Zoom to the site's location on the map.

The Options button allows the user to Export fields to CSV and filter the attribute table.

4.1.	Export to CSV

Within the options menu in the attribute table you can Export fields to CSV. If a row(s) is
selected just that row(s) will be exported, otherwise all fields in the table will be exported.

4.2.	Attribute Filter

The Options—^Filter feature allows the user to customize a query within the attribute table. From
the Filter menu select Add expression O Add expre;;': to customize a query. In figure 15 below
a customized query is created for the UST database where tanks between 10000- and 50000-
gallon capacities will be queried.

Filter

X

Rlter



X

Add expressionjP Add set

layer that match the following expression



O Add expression O Add set

Display features in the layer that match the following expression





Capacity (Numb ' is between ~ 10000

and 50000

H ° x

Without filter expressions defined, this query task will list all features in the specified data source.









OK Cancel



OK Cancel





Figure 15. Custom Attribute query

Compound queries can also be performed where you can choose whether the criteria for all or
any of the multiple expressions are met. Figure 16 shows a query that will return all USTs
between 10,000- and 50,000-gallon capacity awt/USTs with a tank status of "Open". Click OK
to return the queried results.

20


-------
Filter

O AcicLexpre&sion O AdcLsel
Display features in the layer that match all of the following expressions	»

Capacity (Numb * is between » 10000	and 50000

"link Status (Sti	is	"" Open

OK Cancel
	

Figure 16. Compound attribute query

5. Widgets

UST Finder contains widgets containing different functionality. Figure 17 shows the six widgets
discussed in this section—Filter, Near Me, Area of Interest Report, Time Slider, and Share.

Figure 17. Widgets in UST Finder

21


-------
5.1. Filter

Section 4.2 describes ways to filter UST data
via the attribute table. You can also filter data
using the Filter widget. The Filter widget is
divided into two section: Facilities (blue) and
Releases (red). The facilities section only filters
the facilities layer and the release section only
filters the release layer. The filter labels
indicate what is being filters, for example, the
State filter will only return facilities for a user
defined state. Figure 18 shows the facilities
filtered by State, in this case, Delaware. Note
that the Filter widget not only filters the
locations on the map, but also the attribute
table.

You can also create multiple, compounding filters. If more than one filter is used, note that all
statements in the argument are considered true. For example, in Figure 19, the filter returned
UST releases that are within a source water protection area (surface water) and were reported on
or after 1/1/2010.

You can create a custom filter
within the Filter widget by clicking
the black and white button at the
bottom right corner (filter and
pencil icon, seen in Figure 19). In
the custom filter window select the
layer you wish to perform the filter
on and click + Add express....

+ Add express... Figure 20 illustrates
a custom filter on the facilities
layer where only facilities that
contain the word School is shown
in the map (and attribute table).

Figure 18. Filter Widget

Figure 19. Compounding Filter

22


-------
GEEHE

@©o

CD

Display features in the layer thai match the following expression

Name (String)

St»ftwg	Ml cat men.

¦ S£ft



* Detroit

. t

Figure 20. Custom Filter

5.2. Near Me

The Near Me widget provides users a way of identifying releases and/or facilities within a user
defined distance of a location—such as where you are or where you live. When you open the
Near Me widget there are several ways to set a location to identify releases and/or facilities
nearby.

• If you are using a GPS enabled device, you can click the Find my location button

O

Enter an address or place in the Find address or place bar

Find address or place



Or click a location on the map

23


-------
Afer a location is defined the user then sets a search radius using either the slider (increments of
1 mile) or the Show results within (Miles) box. Figure 21 identifies 7 facilities and 7 releases
within .75 miles from Woodstock Park.

¦

1

1

I

¦

1

1

1

1



\T

Near Me

- X

oig Search for an address or locate on map

Woodstock Park, 5300 SE 47th X

O

SE Holgate Blvd

Show results within (Miles)

0.75

10

Facilities

Releases

>

(7) >

T

Woodstock
Park

SE WojsdstocktBlvd

Woodstock

Figure 21. Near Me Widget

You can get more information about the
nearby facilities and releases and the distance
from the defined location by clicking on
Facilities or Releases. To clear the results
simply close out of the Near Me widget.

Note that if any filters are applied, the Near Me
tool will only analyze the filtered sites. If for
example, you want to know how many active
releases are nearby, filter the data by release
status and then run the Near Me widget

5.3. Info Summary

The Info Summaiy widget quickly tabulates the number of facilities and/or releases within a map
frame. In Figure 22, the facilities and releases were previously filtered to sites within Rhode
Island. The Info Summary widget tells us how many facilities and releases are in Rhode Island
and their counts by status.

24


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Figure 22. Info Summary Widget

5.4. Area of Interest Report

The Area of Interest Report Widget generates a PDF report of facilities and/or releases within a
user defined area. First an area of interest must be identified. This can be done three ways—
Place name, Draw, or Shapefile:

Area of Interest Report

- X

AOI

Place name

Draw	Shapefile

•	Place name—enter a place or address and define a buffer distance

•	Draw—you can define an area using a point, polyline, extent, circle, polygon, or selection

Select draw mode

9I I a/ ¦ • # ^

• Shapefile—Upload a zipped shapefile

Figure 23 depicts an area of interest defined by the Draw—"Polygon tool. In this example the
area of interest are facilities and releases near the Iowa River.

25


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Figure 23. Area of Interest Report : Draw Polygon

After an area is defined, select Report. In the Report window you can either download
the intersecting facilities and releases to a CSV file or you can select the print icon to
generate a PDF report and map of facilities and releases within the area of interest.

Note that if any filters are applied\ the Area of Interest Report tool will only report filtered
sites.

26


-------
8/8/2020

Underground Storage Tank Report



1020

Summary



Area of Interest (AOI) Information

Area: 0.73 mp

Sep 8 2020 12:45:54 Eastern Daylight Time



Facilities |l2

Releases |8

Facilities

































'

IA18494

DWAYNES RADIATOR
REP

58 COMMERCIAL
COURT

lowa Ciy

Johnson











2

IA4663

STREB

CONSTRUCTION CO
INC

18 COMMERCIAL
DRIVE

lowaOty

Johnson

3

IA2954

MUNICIPAL AIRPORT

1801 S. RIVERSIDE DR

lowa City

Johnson

' f i L'

* "i-...,. V Wo'A

" V ' \ ' «

,rl" •• 11

		 ¦)%

LJf

!¦„ IT ,L ,

r: i r

4

IA9204

METRO PAVERS INC

1722 STEVENS DR

lowa City

Johnson

5

IA4231

COASTAL MART

808 S RIVERSIDE DR

lowa Cey

Johnson

e

IA2838

PHYSICAL PLANT
DEPARTMENT

BURLINGTON STREET

lowa City

Johnson

'

IA2840

BOYD LAW BUILDING

GRAND AVE S
RIVERSIDE DR

lowa City

Johnson

9

IA17511

IOWA MEMORIAL
UNION

CORNER OF MADISON
S JEFFERSON

k»aC*y

Johnson

a

IA17760

UNIVERSITY OF IOWA

100 STANLEY HALL

lowaCHy

Johnson

10

IA4664

IOWA CITY READY MIX

1854 S RIVERSIDE DR

tawa City

Johnson

11

IA3007

IOWA CITY MUNICIPAL
AIRPORT

1801 S RIVERSIDE
DRIVE

lowa Crty

Johnson

12

IAB415

KUM & GO #422

513 SOUTH RIVERSIDE

towaC«y

Johnson



,



41.8340

-91.5353





2

lowa

522400000

41 8351

-91.5357

Geooode

3

Iowa

522460000

41.8400

-91.5391

GeocoOe

4

lowa

522400000

41.8428

-91.5345

Geooode

5

Iowa

522400000

41.8522

-91.5403

Geocode

a

Iowa

522420000

41.8578

-91.5395

Geocode

7

Iowa

522420000

41.8580

-91.5420

Geocode

8

Iowa

522420000

41.8825

-01.5377

Geocode

9

lowa



41.8854

-91.5382

GeocoOe





10

Iowa

522440000

41 6380

-91.5383

Geocode

FactlHtes Reteav*

•	Closed USTis) * Ho Furttiei Action

*	Opwi UST(S) * Ojicti

t mj ««



11

lowa

522400000

41 6400

-91.5301

GeocoOe

6 *T

12

Iowa

552400000

41.8533

-91.5405

Geocode

U9

2«

Figure 24. Area of Interest Report

5.5. Time Slider

The Time Slider tool only works 011 the Releases layer. It filters releases temporally—by
release date. There are 39 states and the District of Columbia where this feature is available,
listed in Table 5.1.

Table 5.1 States with Release Dates

States with Release Dates

Alabama

Iowa

Montana

Rhode Island

Arizona

Kansas

Nebraska

South Carolina

Arkansas

Louisiana

Nevada

South Dakota

Colorado

Maine

New Jersey

Tennessee

Connecticut

Maryland

New York

Texas

DC.

Massachusetts

North Carolina

Utah

Florida

Michigan

Ohio

Vermont

Georgia

Minnesota

Oklahoma

Virginia

Idaho

Mississippi

Oregon

West Virginia

Illinois

Missouri

Pennsylvania

Wisconsin

27


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With the Time Slider widget open, the slider can be moved to find sites where releases occurred
at a given year or occurred within a range of years. In Figure 25, the time slider is set to show
sites on the map that were reported between 1998 and 2008.



Figure 25. Time Slider widget

5.6. Share

You can easily share UST Finder using the Share widget. You can share a custom extent within
UST Finder using the Share a link to this app link or you can embed the application using the
Embed this app in a website code (Figure 26). The link options and Embed options allows users
to tailor what is shared via the customize link.

28


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<4* Share

- X

Share a link to this app

https:// a rcg. i s/iTKeT

Link options

Embed this app in a website

ciframe width="300" height="200" frameborder="0"

scrolling="no" allowfullscreen

src=" https://a rcg. is/iTKeT"x/iframe>

Embed options

Small ~

300 x

200

Figure 26. Share widget

6. Basemaps and Adding External Data

You can customize UST Finder by changing basemaps and
adding external data. These options can be found at the top right
of UST Finder.

\



%>

w
% %

DO

6.1. Basemaps

There are a variety of basemaps to choose from in the basemap gallery, including aerial imagery,
seen in Figure 27.

29


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Bing Maps Bing Maps Road
Hybrid

Community Map

Imagery Hybrid Light Gray
Canvas

National
Geographic

Figure 27. Using different basemaps

6.2. Add Data

You can add external data to UST Finder by using either the Search, URL, or File options within
the Add Data widget.

30


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6.2.1. Add Data via Search

Within the Add Data Search tab data can be added through ArcGIS Online, My content, or My
Organization. There are thousands of datasets available in ArcGIS Online. Just search using
keywords and select Add to add the layer to UST Finder. In Figure 28, wildfires were searched
for via ArcGIS Online. Current Wildfire Perimeters were then added to UST Finder.

(SEES



* Q Facilities

o Closed UST(s)

Open UST(s)

Pictur# R 1.545 Items	9 LAYERS

Figure 28. Searching and adding external data via ArcGIS online

6.2.2.	Add Data via URL

If you know the URL of a web service you can enter the URL and select ADD.

6.2.3.	Add Data via File

A zipped shapefile, CSV, KML, GPX, or Geo JSON can be uploaded into UST Finder.

7. UST Finder Source Data

UST Finder is a national collection of USTs, UST Facilities, and LUSTs from state sources.
Below are the agencies names where data was collected for the three data layers.

7.1. Underground Storage Tank Data Sources

Alabama Department of Environmental Management's Groundwater Branch, Alaska's
Department of Environmental Conservation's Prevention Preparedness and Response Program,
Arizona Department of Environmental Quality's Underground Storage Tank Program, Arkansas

31


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Department of Environmental Quality's Regulated Storage Tanks Division, California State
Water Resource Control Board, Colorado Department of Labor and Employment's Division of
Oil and Public Safety, Connecticut Department of Energy and Environmental Protection,
Delaware Department of Natural Resources and Environmental Control's Underground Storage
Tank Compliance Program, Florida Department of Environmental Protection's Permitting and
Compliance Assistance Program, Georgia Environmental Protection Division's Underground
Storage Tank Management Program, Hawaii Department of Health's Solid and Hazardous Waste
Branch, Illinois State Fire Marshal's Division of Petroleum and Chemical Safety, Indiana
Department of Environmental Management's UST Branch, Iowa Department of Natural
Resources' Underground Storage Tanks Section, Kansas Department of Health and
Environment's Storage Tank Section, Kentucky Energy and Environment Cabinet's Underground
Storage Tank Branch, Louisiana Department of Environmental Quality's Underground Storage
Tank Program, Maine Department of Environmental Protection's Underground Storage Tank
Program, Maryland Department of the Environment's Oil Control Program, Massachusetts
Department of Environmental Protection's Underground Storage Tank Program, Michigan
Department of Licensing and Regulatory Affairs' Storage Tank Division, Minnesota Pollution
Control Agency's Underground Storage Tank Program, Mississippi Department of
Environmental Quality's Underground Storage Tank Program, Missouri Department of Natural
Resources' Environmental Remediation Program, Montana Department of Environmental
Quality's Underground Storage Tank Leak Prevention Program, Nebraska State Fire Marshal's
Fuels Safety Division, Nevada Division of Environmental Protection's Underground Storage
Tank Program, New Hampshire Department of Environmental Services' Underground Storage
Tank Program, New Jersey Department of Environmental Protection's Site Remediation
Program, New York Department of Environmental Conservation's Chemical Bulk Storage
Program, North Carolina Environmental Quality's Underground Storage Tank Section, North
Dakota Department of Environmental Quality's Underground Storage Tank Program, Ohio
Department of Commerce's Bureau of Underground Storage Tank Regulations, Oklahoma
Corporation Commission's Petroleum Storage Tank Division, Oregon Department of
Environmental Quality's Underground Storage Tank Program, Pennsylvania Department of
Environmental Protection's Division of Storage Tanks, Rhode Island Department of
Environmental Management's Underground Storage Tank Management Program, South Carolina
Department of Health and Environmental Control's Underground Storage Tanks Program,
Tennessee Department of Environment and Conservation's Division of Underground Storage
Tanks, Texas Commission on Environmental Quality, Utah Department of Environmental
Quality's Underground Storage Tanks Branch, Vermont Department of Environmental
Conservation's Waste Management and Prevention Division, Virginia Department of
Environmental Quality's Underground Storage Tanks Program, Washington Department of
Ecology's Underground Storage Tank Program, District of Columbia Department of Energy and
Environment's Underground Storage Tank Program, West Virginia Department of
Environmental Protection's Underground Storage Tank Section, Wisconsin Department of
Agriculture's Trade and Consumer Protection's Bureau of Weights and Measures, Wyoming
Department of Environmental Quality's Storage Tank Program

7.2. Underground Storage Tank Facilities Data Sources

Alabama Department of Environmental Management's Groundwater Branch, Alaska's
Department of Environmental Conservation's Prevention Preparedness and Response Program,

32


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Arizona Department of Environmental Quality's Underground Storage Tank Program, Arkansas
Department of Environmental Quality's Regulated Storage Tanks Division, California
Environmental Protection Agency's California Environmental Reporting System, Colorado
Department of Labor and Employment's Division of Oil and Public Safety, Connecticut
Department of Energy and Environmental Protection, Delaware Department of Natural
Resources and Environmental Control's Underground Storage Tank Compliance Program,

Florida Department of Environmental Protection's Permitting and Compliance Assistance
Program, Georgia Environmental Protection Division's Underground Storage Tank Management
Program, Hawaii Department of Health's Solid and Hazardous Waste Branch, Idaho Department
of Environmental Quality's Waste Management and Remediation Division, Illinois State Fire
Marshal's Division of Petroleum and Chemical Safety, Indiana Department of Environmental
Management's UST Branch, Iowa Department of Natural Resources' Underground Storage Tanks
Section, Kansas Department of Health and Environment's Storage Tank Section, Kentucky
Energy and Environment Cabinet's Underground Storage Tank Branch, Louisiana Department of
Environmental Quality's Underground Storage Tank Program, Maine Department of
Environmental Protection's Underground Storage Tank Program, Maryland Department of the
Environment's Oil Control Program, Massachusetts Department of Environmental Protection's
Underground Storage Tank Program, Michigan Department of Licensing and Regulatory Affairs'
Storage Tank Division, Minnesota Pollution Control Agency's Underground Storage Tank
Program, Mississippi Department of Environmental Quality's Underground Storage Tank
Program, Missouri Department of Natural Resources" Environmental Remediation Program,
Montana Department of Environmental Quality's Underground Storage Tank Leak Prevention
Program, Nebraska State Fire Marshal's Fuels Safety Division, Nevada Division of
Environmental Protection's Underground Storage Tank Program, New Hampshire Department of
Environmental Services' Underground Storage Tank Program, New Jersey Department of
Environmental Protection's Site Remediation Program, New Mexico Environment Department's
Petroleum Storage Tank Bureau, New York Department of Environmental Conservation's
Chemical Bulk Storage Program, North Carolina Environmental Quality's Underground Storage
Tank Section, North Dakota Department of Environmental Quality's Underground Storage Tank
Program, Ohio Department of Commerce's Bureau of Underground Storage Tank Regulations,
Oklahoma Corporation Commission's Petroleum Storage Tank Division, Oregon Department of
Environmental Quality's Underground Storage Tank Program, Pennsylvania Department of
Environmental Protection's Division of Storage Tanks, Rhode Island Department of
Environmental Management's Underground Storage Tank Management Program, South Carolina
Department of Health and Environmental Control's Underground Storage Tanks Program,
Tennessee Department of Environment and Conservation's Division of Underground Storage
Tanks, Texas Commission on Environmental Quality, Utah Department of Environmental
Quality's Underground Storage Tanks Branch, Vermont Department of Environmental
Conservation's Waste Management and Prevention Division, Virginia Department of
Environmental Quality's Underground Storage Tanks Program, Washington Department of
Ecology's Underground Storage Tank Program, District of Columbia Department of Energy and
Environment's Underground Storage Tank Program, West Virginia Department of
Environmental Protection's Underground Storage Tank Section, Wisconsin Department of
Agriculture's Trade and Consumer Protection's Bureau of Weights and Measures, Wyoming
Department of Environmental Quality's Storage Tank Program

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7.3. Underground Storage Tank Releases Data Sources

Alabama Department of Environmental Management, Alaska Department of Environmental
Conservation's Division of Spill Prevention and Response, Arizona Department of
Environmental Quality, Arkansas Department of Environmental Quality's Office of Land
Resources, California Environmental Protection Agency State Water Resources Control Board,
Colorado Department of Labor and Employment's Division of Oil and Public Safety,

Connecticut Department of Energy and Environmental Protection, Delaware Department of
Natural Resources and Environmental Control, Florida Department of Environmental
Protection's Division of Waste Management, Georgia Department of Natural Resources'
Environmental protection Division, State of Hawaii's Department of Health-Solid and Hazardous
Waste Branch, Idaho Department of Environmental Quality, Illinois Environmental Protection
Agency's Bureau of Land Databases, Indiana Department of Environmental Management UST
Branch, Iowa Department of Natural Resources and Public Safety State Fire Marshal Office,
Kansas Department of Health and Environment's Storage Tank Section, Kentucky Energy and
Environment Cabinet-Division of Waste Management-Underground Storage Tank Branch,
Louisiana Department of Environmental Quality's Underground Storage Tank Program, Maine
Department of Environmental Protection's Bureau of Remediation and Waste Management,
Maryland Department of the Environment-Land and Materials Administration-Oil Control
Program, Massachusetts Department of Environmental Protection's Bureau of Waste Site
Cleanup, Michigan Department of Environment, Great Lakes, and Energy's Leaking
Underground Storage Tanks Program, Minnesota Pollution Control Agency's Petroleum
Remediation Program, Mississippi Department of Environmental Quality's Underground Storage
Tanks Program, Missouri Department of Natural Resources' Environmental Remediation
Program, Montana Department of Environmental Quality's Waste Management and Remediation
Division, Nebraska Department of Environmental Quality, Nevada Division of Environmental
Protection, New Hampshire Department of Environmental Services' Waste Division, New Jersey
Department of Environmental Protection's Division of Remediation Management, New Mexico
Environment Department's Petroleum Storage Tank Bureau, New York Department of
Environmental Conservation, North Carolina Department of Environmental Quality's Was
Management Division, North Dakota Department of Environmental Quality's Division of Waste
Management, Ohio Department of Commerce's Division of State Fire Marshal, Oklahoma
Corporation Commission's Petroleum Storage Tank Division, Oregon Department of
Environmental Quality's Tanks Program, Pennsylvania Department of Environmental
Protection's Storage Tank Cleanup Program, Rhode Island Department of Environmental
Management's Office of Waste Management, South Carolina Department of Health and
Environmental Control, South Dakota Department of Environmental and Natural Resources'
Ground Water Quality Program, Tennessee Department of Environment and Conservation's
Division of Underground Storage Tanks, Texas Commission of Environmental Quality, Utah
Department of Environmental Quality's Underground Storage Tank Branch, Vermont
Department of Environmental Conservation, Virginia Department of Environmental Quality's
Division of Land Protection and Revitalization, Washington Department of Ecology's Toxics
Cleanup Program, Washington D.C. Department of Energy and Environment, West Virginia
Department of Environmental Protection's Tanks Unit, Wisconsin Department of Natural
Resources' Remediation and Redevelopment Program, Wyoming Department of Environmental
Quality's Storage Tank program

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