The Search Results page presents results that meet the search criteria specified on the Search page. The Search Results Page is an interactive page that allows you to view the results of your search in a number of different ways, each of which are described in the sections below. A detailed Results Guide is also available that describes each data field included in the search results.

• Visually Analyze Data Presented on an Interactive Map
• Analyze and Download Data in a Tabular, Customizable View
• View Summary Information About the Search Performed
• View Summary Information About Individual Facilities
• Results Guide

Visually Analyze Data Presented on an Interactive Map

ECHO displays facilities included in your search results on an interactive map. Only those facilities with available geographical data are mapped. An icon is included in the data table to indicate whether a facility is mapped. The map icon reflects location information in the Facility Registry Service (FRS) database. ECHO displays information from several national environmental data sets; however, location information is not always consistent between source databases. Click on the icon to zoom and reposition the map to the selected facility’s location. You can also used the map zoom-in and zoom-out controls to manipulate the map. Click the Reset Map button to return to the original view.

When a search returns more than 500 records, mapped facilities are grouped in clusters, indicated by this symbol . A mix of clusters and facilities may appear depending on the density of the number of facilities. Clusters are pre-established within ECHO and correlated to specific regions (e.g., metropolitan areas, counties, or states). The count of facilities included in a cluster is displayed inside of the cluster.

Click on the facility map pin to view basic facility information (click on the links below to jump to the Results Guide for detailed descriptions of each):

• Facility Name - Click the hyperlinked facility name to view the facility’s Detailed Facility Report.
• Street Address
• City
• State
• ZIP Code
• Days Since Last Full Compliance Evaluation

You can customize the base layer map by clicking Basemap Options. The following choices are available:

A map legend is included that describes the symbols used on the map. Click the Legend button in the top right of the map to expand the legend. The symbols used are described in detail below:

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Analyze and Download Data in a Tabular, Customizable View

ECHO returns a maximum of 60,000 records. Results are presented in tabular format in the data table and initially include the following columns of data (click on the links below to jump to the Results Guide for detailed descriptions of each):

• Facility Name
• CAA ID
• Mapped
• Street Address
• City
• State
• FRS ID
• Reports
• Violation Status
• Quarters in HPV (3 yrs)
• Quarters with Violations Reported (3 yrs)
• Full Compliance Evaluations (5 yrs)
• Formal Enforcement Actions (5 yrs)

Several facility reports are accessible from the Reports column. The following reports may be accessed by clicking the corresponding icon. Note that the types of reports available for specific facilities varies.

Icon	Report	Description
	Single Civil Enforcement Case Report	An "I" icon is displayed in the Reports column if a Civil Enforcement Case Report exists for a facility. Click the "I" icon to access the Civil Enforcement Case Report.
	Multiple Civil Enforcement Case Reports	An "I+" icon is displayed if multiple Civil Enforcement Case Reports exist for a facility. Click the “I+” icon to display links to all available Civil Enforcement Case Reports by case number.  Click on a case number to access the selected Enforcement Case Report.
	Compliance Report	The Detailed Facility Report for each facility can be accessed by clicking the "C" icon in the Reports column. The Detailed Facility Report presents a concise enforcement and compliance history for a selected facility.
	Effluent Charts	Click the "E" icon to access the facility's Effluent Charts page, which presents dynamic charts, tables, and data downloads of permitted discharges, effluent limits, and violations over time for Clean Water Act (CWA) wastewater discharge permits issued under the National Pollutant Discharge Elimination System (NPDES).
	Pollutant Loading Report	Click the "L" icon to view the detailed pollutant loading report for a facility. This icon links to EPA's Discharge Monitoring Report (DMR) Pollutant Loading Tool.
	Air Pollutant Report	Click the "A" icon to view the Air Pollutant Report for a facility, which presents a dynamic table and data downloads of pollutant emissions over time for Clean Air Act (CAA) permits and emissions inventories

Tip: Sort tabular data by clicking on the column heading. The Reports column cannot be sorted.

You can further manipulate the data presented using either the Customize Columns button or the Download File buttons. Click the Customize Columns button to customize the tabular data to focus on the data most important to you. Data fields available for selection include (click on the links below to jump to the Results Guide for detailed descriptions of each):

Facility Information

• Facility Name
• CAA ID
• Mapped
• Street Address
• City
• State
• ZIP
• Local Agency
• FRS ID
• Reports
• County
• EPA Region
• Federal Agency Code
• Federal Agency Name
• HUC (Watershed code)
• Facility FIPS Code
• FRS Tribal Land Code
• ICIS Tribal Land Flag
• Within Spatial Tribal Boundary
• FRS Spatially Derived Tribe
• Near US-Mexico Border
• SIC Code
• NAICS Code
• Latitude
• Longitude
• CAA Program Code
• CAA Program
• MACT Subpart
• Facility Status
• Designation

Regulatory Programs

• CAA IDs
• CWA NPDES IDs
• RCRA IDs
• SDWA IDs
• TRI IDs
• GHGRP IDs
• EIS IDs

Compliance Status

• Violation Status
• Current HPV Status
• Months in HPV (3 yrs)
• Quarters in HPV (3 yrs)
• Quarters with Violations Reported (3 yrs)
• Pollutant with Recent Violations
• Recent Violation Count
• Date of Last Violation

Compliance Evaluations

• Full Compliance Evaluations (5 yrs)
• Days Since Last Full Compliance Evaluation
• Date of Last Full Compliance Evaluation
• Date of Last Full Compliance Evaluation (EPA)
• Date of Last Full Compliance Evaluation (State)
• Date of Last Stack Test
• Result of Last Stack Test

 

Enforcement Actions

• Informal Enforcement Actions (5 yrs)
• Formal Enforcement Actions (5 yrs)
• Date Last Informal Action
• Date Last Informal Action (EPA)
• Date Last Informal Action (State)
• Date Last Formal Action
• Date Last Formal Action (EPA)
• Date Last Formal Action (State)

Penalties

• Penalties (5 yrs)
• Date of Last Penalty

Other Information

• EJ Indexes Above 80th Percentile
• Population Density (3 mi)
• Percent Minority (3 mi)

Pollutants

• Non-Attainment Area
• TRI Reporter
• Current TRI Total Releases (lb/yr)
• Current TRI Carcinogen Releases (lb/yr)
• Current TRI HAPS Releases (lb/yr)
• Current NEI Emissions (tons/yr)
• Current GHG Emissions (MTCO₂e)

Local Water Bodies

• Waterbody Number
• Waterbody Name
• Chesapeake Bay Flag

Use the Select All link to quickly include all columns for display or use the Clear All link to clear all selections. Note: Facility Name, Mapped, and Reports are always included and cannot be unchecked.

ECHO allows you to download your search results for further analysis. Click the Download CSV File button to download tabular data in a comma-separated value (.csv) format. For search results with less than 10,000 records, a Download Excel File button is available to download tabular data in an .xlsx format. Note that the Excel download may require several minutes to process.

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View Summary Information About the Search Performed

View Summary Information About Individual Facilities

Results Guide

The search results present data from several EPA data sources. Read About the Data for more information on each data source and when the data were last updated in ECHO.

Data fields included in the search results are described below. The results table column name is listed in bold and the data download file field name is listed [within brackets in italics].

Facility Information

Facility Name [air_name]

Company or permit holder name, as maintained in ICIS-Air. The facility name may differ across EPA databases due to differences in reported information, change in ownership, use of parent or subsidiary name, etc.

CAA ID [source_id]

A unique ID assigned for each record/permit/site/facility within ICIS-Air.

Mapped [fac_map_flg]

Graphical indicator denoting whether geographical data required to map a facility are available. A gray pin denotes a facility without valid spatial coordinates.

Street Address (Address, City, County, State, and ZIP Code) [air_street, air_city, air_county, air_state, air_zip]

Street address, city, county, state, and ZIP code where facility is located, as maintained by each data system. Certain data systems also maintain mailing address information, which is not used in this report. The street address may differ across EPA databases due to differences in reported information (e.g., use of mailing address), change in ownership, use of parent or subsidiary address, etc. The search logic includes results that match specified address criteria in any source database. The address displayed in the search results table reflects information in the ICIS-Air database. 

Local Agency [Excluded from download]

An agency-defined two character code identifying the local district or other agency (including regions of state and tribal agencies) primarily responsible for compliance and enforcement.

FRS ID [registry_id]

Facility Information included on this page is associated with a particular Facility Registry Service (FRS) ID. FRS uniquely identifies a facility by assigning an identification number (FRS ID), and uses this FRS ID to link together all regulatory program database records (such as permit IDs and facility IDs that facilities use in reporting to EPA).

Reports [Excluded from download]

An indicator of additional ECHO reports that are available and accessible by clicking on the corresponding icons. The Reports Legend provides descriptions of each report icon.

EPA Region [air_epa_region]

The EPA region where the facility is located. EPA has 10 regional offices that execute programs within several states and territories.

Federal Agency Code [fac_federal_agency_code]

Indicates the federal agency, as classified in FRS. Federal agencies are installations that are owned and operated by the U.S. government.

Federal Agency Name [fac_federal_agency_name]

Indicates the name of the federal agency, as classified in FRS. Federal agencies are installations that are owned and operated by the U.S. government.

HUC (Watershed code) [fac_derived_huc]

The 8-digit Hydrologic Unit Code (HUC) of the watershed in which the facility resides. A HUC number is assigned to every watershed in the nation and uniquely identifies the watershed.

Facility FIPS Code [fac_fips_code]

The Federal Information Processing Standards (FIPS) code to identify the county that a facility is located in.

FRS Tribal Land Code [fac_indian_cntry_flg]

Displays “Y” if a facility is flagged as being located in Indian Country, based on information from the EPA's Facility Registry Service (FRS). Displays “N” if a facility is not located in Indian County.

ICIS Tribal Land Flag [air_indian_cntry_flg]

Displays “Y” if a facility is flagged as being located in Indian Country, based on information from the EPA's Integrated Compliance Information System (ICIS). Displays “N” if a facility is not located in Indian County.

Within Spatial Tribal Boundary [fac_indian_spatial_flg]

Displays “Y” if a facility is located within 25 miles of a tribal spatial boundary as defined by the U.S. Census Bureau 2010 tribal boundary layer data for tribes in the lower 48 states and Bureau of Land Management Alaska State Office data for tribes in Alaska. Displays “N” if a facility is not located in Indian County.

FRS Spatially Derived Tribe [air_derived_tribes]

The tribes or tribal territories located within 25 miles of the facility's location. EPA compares the facility location in its Facility Registry Service to the U.S. Census Bureau 2010 tribal boundary layer data for tribes in the lower 48 states and Bureau of Land Management Alaska State Office data for tribes in Alaska. The tribal boundary locations identified are suitable only for general spatial reference and do not necessarily reflect EPA's position on any Indian country locations or boundaries, or the land status of any specific location.

Near US-Mexico Border [fac_us_mex_border_flg]

A "Y" is displayed for facilities within 100 km of the U.S.-Mexico border.

SIC Code [fac_sic_codes]

Indicates the facility’s or permit's primary Standard Industrial Classification (SIC) Code. The SIC code describes the primary activity of the facility. The first two digits in the code define a major business sector; the last two digits denote a facility's specialty within the major sector. SIC Lookup.

NAICS Code [air_naics]

Indicates the facility’s or permit's primary North American Industry Classification System (NAICS) Code. The NAICS Code has replaced the U.S. Standard Industrial Classification (SIC) system. The system was developed to give special attention to developing production-oriented classifications for (a) new and emerging industries, (b) service industries in general, and (c) industries engaged in the production of advanced technologies.

NAICS industries are identified by a 6-digit code. The first two digits represent the Industry sector, in which there exist 20 broad sectors. The third digit represents industry subsector, the fourth digit represents industry group, the fifth digit represents industry, and the sixth digit is U.S., Canadian, or Mexican National specific. ECHO allows users to search by general industry sector (the two-digit NAICS code) or by industry specialty (the three, four, five, or six-digit NAICS Code). NAICS Lookup

Latitude/Longitude [fac_lat, fac_long]

Displays the latitude and longitude of the facility or permit holder as maintained in the program data system.

CAA Program Code (under development)

A one-character code used to identify 1) the regulatory air program(s) that applies to a particular plant or point, and 2) the regulatory air program(s) authorizing and associated with an action taken by a local, state or federal regulatory agency. Code values include:

• A Acid Precipitation
• F FESOP - (NON-TITLE V)
• I Native American
• M MACT (Section 63 NESHAPS)
• T Tribal Implementation Plan (TIP)
• V Title V Permits
• 0 State Implementation Plan (SIP) Source
• 1 SIP Source under federal jurisdiction
• 3 Non-Federally Reportable Source
• 4 CFC Tracking
• 6 PSD
• 7 NSR
• 8 NESHAP
• 9 NSPS

CAA Program (under development)

The regulatory air program that applies to a particular plant or point.

MACT Subpart [air_macts]

Facilities with Clean Air Act IDs specified by Maximum Achievable Control Technology (MACT) Subpart.

Facility Status[air_status]

Indicates whether the site is active or inactive. CAA program status codes for each source ID: Operating, Planned, Under construction, Temporarily closed, Permanently closed, and Seasonal.

Designation [air_universe]

The program office defines each CAA Source ID and the associated permits as being Federally Reportable or Non-Federally Reportable. Under the CAA, federally reportable source include majors, synthetic minors, NESHAP Part 61 minors, minors with an unresolved High Priority Violation (HPV), with recent enforcement action, or included on a Compliance Monitoring Strategy plan.

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Regulatory Programs

CWA NPDES IDs [cwa_ids]

A unique  ID assigned for each record/permit/site/facility within ICIS-NPDES. These identifiers are for used tracking purposes in the individual data systems.

RCRA IDs [rcra_ids]

A unique 12-character ID assigned for each record/permit/site/facility within the RCRAInfo database. This identifier is used to track waste handlers subject to the Resource Conservation and Recovery Act (RCRA). The ID may contain both letters and numbers and often begins with the two-letter abbreviation for the state in which the facility is permitted.

SDWA IDs [sdwa_ids]

A unique 9-character ID assigned for each public water system within the Safe Drinking Water Information System (SDWIS). These identifiers are for used tracking purposes in the individual data systems. The ID may contain both letters and numbers and often begins with the two-letter abbreviation for the state in which the facility is permitted.

TRI IDs [tri_ids]

A unique 15-character ID assigned for each facility within the Toxics Release Inventory (TRI) program. The format is ZZZZZNNNNNSSSSS, where ZZZZZ = ZIP code, NNNNN = the first 5 consonants of the name, and SSSSS = the first 5 non-blank non-special characters in the street address. These identifiers are for used tracking purposes in the individual data systems.

GHGRP IDs [ghg_ids]

A unique ID assigned for each facility within EPA’s Greenhouse Gas Reporting Program (GHGRP) Emissions Data Sets.

EIS IDs [eis_ids]

A unique ID assigned for each facility within EPA’s Emissions Inventory System (EIS) Database.

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Compliance Status

Violation Status [air_curr_compliance_status]

An indication of the facility's recent violation status under the Clean Air Act.

• Current High Priority Violation (HPV): When a source has an HPV, the specific type of HPV will be displayed. If more than one type applies to a source, this order of priority is used to determine which code appears:
  • E - Violation Unaddressed, EPA Lead
  • S - Violation Unaddressed, State/Local Lead
  • C - Violation Addressed, Shared Lead (EPA and State/Local)
  • Addrs-EPA - Violation Addressed, EPA Lead
  • T - Violation Addressed, State/Local Lead
• Federally Reportable Violation in the last year
• No Violation - no violation recorded in the national systems of record

Current HPV Status [air_curr_hpv]

Yes: Indicates that the facility is currently designated as a High Priority Violator (HPV) under CAA. The High Priority Violator designation indicate violations by point source dischargers of sufficient magnitude or duration to be a regulatory priority. Removal from the significant violator list varies somewhat by program. Sources continue to be high priority violators until they are in full compliance and all penalties are paid.

No: For facilities with major/federally reportable permits or with non-federally reportable permits under CAA indicates that the facility in not currently designated as a High Priority Violator under CAA. This designation indicates violations by point source dischargers of sufficient magnitude or duration to be a regulatory priority.

N/A: Indicates that this measure is not applicable for facilities with no associated CAA permits.

Months in HPV (3 yrs) [air_mnths_in_hpv]

Count of the number of months in the last three years in which the permit or site is considered a High Priority Violation (HPV) status, as described above.

Quarters in HPV (3 yrs) [air_qtrs_in_hpv]

Count of the number of quarters in the last three years in which the permit or site is considered a High Priority Violation (HPV) status, as described above. A quarter is any of the following 3-month calendar periods: January-March, April-June, July-September, or October-December. Further violation and detailed compliance information can be found on ECHO's Frequently Asked Questions page. 

Quarters with Violations Reported (3 yrs) [air_qtrs_with_viol]

Count of the number of quarters in the last three years in which the permit or site has had violation(s) reported. A quarter is any of the following 3-month calendar periods: January-March, April-June, July-September, or October-December. Further violation and detailed compliance information can be found on ECHO's Frequently Asked Questions page.

Pollutants with Recent Violations [air_poll_recent_viol]

The names of pollutants or pollutant categories with violations reported in the last year.

Recent Violation Count [air_recent_viol_cnt]

The number of violations reported in the last year.

Date of Last Violation[air_last_viol_date]

The date on which the most recent violation was reported.

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Compliance Evaluations

Full Compliance Evaluations (5 yrs) [air_eval_cnt]

The number of compliance evaluations, under the Clean Air Act, occurring at the facility within the last five years. 

Days Since Last Full Compliance Evaluation [air_days_last_eval]

The number of days since the most recent compliance evaluation of the facility. 

Date of Last Full Compliance Evaluation [air_last_eval_date]

The date on which the most recent Full Compliance Evaluation (FCE) of the facility by EPA or a state agency was completed. This date may or may not correspond to an actual site visit. A series of partial on- or off-site inspections may have been conducted during the fiscal year as part of this an FCE.

Date of Last Full Compliance Evaluation (EPA) [air_last_eval_date_epa]

The date on which the most recent full compliance evaluation of the facility by EPA was completed.

Date of Last Full Compliance Evaluation (State) [air_last_eval_date_state]

The date on which the most recent full compliance evaluation of the facility a state agency was completed.

Date of Last Stack Test [air_last_stck_test_date]

The date on which the most recent stack test occurred. A stack test measures the amount of specific regulated pollutant(s) or surrogates being emitted, demonstrates the capture efficiency of a capture system, or determines the destruction or removal efficiency of a control device used to reduce emissions at facilities subject to the requirements of the Clean Air Act.

Result of Last Stack Test [air__last_stck_test_results]

Indicates the result of the most recent stack test (Pass, Fail, Pending, or Blank).

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Enforcement Actions

Informal Enforcement Actions (5 yrs) [air_iea_cnt]

Indicates the total number of informal enforcement actions/notices of violations (NOVs) taken against the facility within the last five years. Notices of Violation are activities taken by EPA or the state that often precede a formal administrative or civil/judicial enforcement action. Not all notices of violation are escalated to formal enforcement action for a variety of reasons, including the following: the facility quickly corrects the problem(s) indicated in the notice, the violation is determined to be less severe than originally thought, or consultation between the facility and EPA or the state indicates that a violation has not occurred.

Formal Enforcement Actions (5 yrs) [air_fea_cnt]

Indicates the total number of enforcement actions taken against the facility within the last five years. This count only includes enforcement actions that have been entered in the national program databases: ICIS-Air, ICIS-NPDES, and RCRAInfo. Federal CAA and RCRA enforcement actions that have been entered into ICIS FE&C are not included in this section to avoid duplicative counting.

Indicates that the database shows no formal EPA or state enforcement action. Note that enforcement actions that are in process are not publicly available. For more information, continue to check this site for updates (monthly). The relevant state environmental agency also may have additional information. Also note that all violations do not receive formal enforcement actions. Violations that are minor, short in duration, or quickly corrected by the facility may not warrant formal enforcement action.

“NA” indicates that this measure is not applicable for facilities with no associated CAA permits.

Date Last Informal Action [air_last_iea_date]

Indicates the effective date of the most recent listed informal enforcement action taken against the facility within the last five years.

Date Last Informal Action (EPA) [air_last_iea_date_epa]

Indicates the effective date of the most recent listed informal enforcement action taken against the facility by EPA within the last five years.

Date Last Informal Action (State) [air_last_iea_date_state]

Indicates the effective date of the most recent listed informal enforcement action taken against the facility by a state environmental agency within the last five years.

Date Last Formal Action[air_last_fea_date]

Indicates the effective date of the most recent listed formal enforcement action taken against the facility within the last five years.

Date Last Formal Action (EPA) [air_last_fea_date_epa]

Indicates the effective date of the most recent listed formal enforcement action taken against the facility by EPA within the last five years.

Date Last Formal Action (State) [air_last_fea_date_state]

Indicates the effective date of the most recent listed formal enforcement action taken against the facility by a state environmental agency within the last five years.

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Penalties

Penalties (5 yrs) [air_penalties]

The total dollar amount of assessed (or final) penalties taken against the facility within the last five years under the Clean Air Act. This count only includes penalties that have been entered in the national program database AFS. Federal CAA penalties that have been entered into ICIS Federal Enforcement and Compliance are not included to avoid duplicative counting.

Date of Last Penalty [air_last_penalty_date]

Indicates the date on which the most recent assessed (or final) penalty was taken against the facility within the last five years. This measure only includes penalties that have been entered in the program database ICIS-Air. Federal CAA penalties that have been entered into ICIS FE&C are not included.

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Other Information

EJ Indexes Above 80th Percentile

"Y" indicates facilities located in Census block groups in the 80th or higher national percentile of one of the primary environmental justice (EJ) indexes of EJSCREEN, EPA's screening tool for EJ concerns. EPA screens areas in this way to identify geographic areas that may warrant further consideration or analysis. Note that use of this field does not designate an area as an “EJ community” or “EJ facility.” EJSCREEN provides screening level indicators, not a determination of the existence or absence of EJ concerns. For more information, see the EJSCREEN home page.

Population Density (3 mi) [fac_population_density]

The number of persons per square mile in the profiled area. The ratio of total persons (displayed in the Total Persons field) to total land area (displayed in the Land Area field).

Percent Minority (3 mi) [fac_percent_minority]

Percent Minority is the percentage of the population of the given area that is considered minority. The field is calculated by subtracting the number of persons who are white (and not of Hispanic origin) from the total persons. This number is then divided by the total persons and multiplied by one hundred to determine the percentage.

Statistics are shown for the area within a 3-mile radius of each facility. The radius is measured from the best available lat/long coordinate (normally from EPA's Locational Reference Tables - LRT file). Users should be aware that the Demographic Profile is based upon the reported latitude and longitude of the facility or permit holder. Surrounding populations and other statistics were estimated by retrieving the data for Census block groups within three miles of each facility.

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Pollutants

Non-Attainment Area [fac_naa_flag]

Indicates whether the facility is in a non-attainment area of the country where air pollution levels persistently exceed the national ambient air quality standards. For more information, see Nonattainment Areas for Criteria Pollutants.

TRI Reporter [fac_tri_reporter]

Indicates if a facility has reported total air emissions to TRI in the most recent reporting year. 

Current TRI Total Releases (lb/yr) [fac_tri_air_releases]

Toxics Release Inventory (TRI) chemical releases represent the total chemical releases to air, in pounds, as reported to TRI by the facility for the most recent reporting year.

Chemical release information from the TRI is provided for each reporting facility. Data are for information purposes only and do not indicate any association with other sections of this report. Chemical releases are not a measure of compliance as the reported releases are typically permissible under current laws.

Current TRI Carcinogen Releases (lb/yr) [fac_tri_carc_air_releases]

The pounds of chemicals considered to be carcinogens released to air, as reported to TRI for the most recent reporting year. Chemicals are classified as carcinogens under the requirements of the Occupational Safety and Health Administration (OSHA). For more information, see TRI Basis of OSHA Carcinogens.

 Current TRI HAPS Releases (lb/yr) [fac_tri_haps_air_releases]

The pounds of chemicals classified as hazardous air pollutants (HAPS) released to air in pounds per year, as reported to TRI for the most recent reporting year.

Current NEI Emissions (tons/yr) [fac_eia_air_releases]

The amount of hazardous air pollutants released to air in tons per year, as reported in the most recent National Emissions Inventory (NEI).

Current GHG Emissions (MTCO₂e) [fac_ghg_co2_releases]

The sum of total release amounts and "associated quantities" of all linked Greenhouse Gas IDs from the Office of Air and Radiation "Summary 2010 Greenhouse Gas Data." Units are reported as metric tons of CO₂ equivalents (MTCO₂e). Data are for informational purposes only and do not indicate any association with other sections of this report.

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Local Water Bodies

Waterbody Number [fac_derived_wbd]

The Hydrologic Unit Code (HUC-12) of the waterbody in which the facility resides. A HUC is a nationally unique and permanent identifier for the waterbody, assigned by the U.S. Geological Survey. The code consists of twelve digits which correspond to six levels of classification:

• Region (first-level, 2-digit HUC)
• Subregion (second-level, 4-digit HUC)
• Accounting unit (third-level, 6-digit HUC)
• Cataloguing unit (fourth-level, 8-digit HUC)
• Watershed (fifth-level, 10-digit HUC)
• Subwatershed (sixth-level, 12-digit HUC)

Waterbody Name [fac_derived_wbd_name]

The name of the waterbody in which the facility is located. A waterbody is a geographically defined portion of navigable waters, waters of the contiguous zone, and ocean waters under the jurisdiction of the United States, including segments of rivers, streams, lakes, wetlands, coastal waters and ocean waters.

Chesapeake Bay Flag [chesapeake_bay_flg]

Displays "Y" if the facility is located within the Chesapeake Bay Watershed.