Search criteria are organized by search page category or by term through the hyperlinks below to allow you to quickly find the search term of interest. Many search criteria are available for all facility searches whereas other criteria are only available for specific search types. Search-specific (e.g., All Data Search only) criteria are identified below. In addition, advanced search criteria are identified below by the  icon.

By Category

• Search Type
• Geographic Location
• Facility/System Characteristics
• Enforcement and Compliance
• Environmental Conditions
• Pollutant
• Demographic Profile

Alphabetically -- Choose a search term:

*Under development

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Search Type

Specify the subject of the search you want to run. Search options correlate with how facilities are regulated under the Clean Air Act (CAA), Clean Water Act (CWA), Resource Conservation and Recovery Act (RCRA), and Safe Drinking Water Act (SDWA), or you can choose to search all data. Further detail about each search type is available on the Facility Search Types page.

The All Data option is selected by default. Select one of the other options from the dropdown menu to focus your search on one subject area.

The Water option offers additional specialized searches for specific water program areas. See NPDES Program Search Criteria Help for more information.

Geographic Location

EPA Region

Use to search for information in a particular EPA Region. Choose a region from the dropdown menu. Hold down the CTRL key to select multiple regions. You may not combine an EPA Region search with a city/state, state, or ZIP Code search.

Address (All Data, Air, Water, Hazardous Waste)

Enter a street address. Be sure to try all possible variations and alternate spellings (e.g., "Route" and "Rte").

City

Use to search for information in a particular city. Be sure to try all possible variations and alternate spellings (e.g., try both Saint Louis and St. Louis). To search for facilities or permits in a particular city, you must also specify a state using the State dropdown menu.

State

Choose a state from the dropdown menu. Hold down the CTRL key to select multiple states. You may not combine a state search with a region search. It is recommended that you not combine a state search with a ZIP code search.

State District (Hazardous Waste Only)

The RCRA state district the facility is located within. After you choose a state, the State District dropdown menu is populated with state-specific district options. This list of districts is not populated when multiple states are selected.

ZIP Code (All Data, Air, Water, Hazardous Waste)

Enter up to a five-digit ZIP code. Entering a partial ZIP code results with any ZIP beginning with the entry. You may not combine a ZIP Code search with a region search. It is recommended that you not combine a ZIP code search with a city or state search. Click the Add More button to add a value to the Selected Search Criteria panel and clear the input field for a new value.

County

After you choose a state, the County dropdown menu is populated with state-specific county options. The list of counties is not available when multiple states are selected. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list. You may not combine a county search with an EPA Region search. It is recommended that you not combine a county search with a city or ZIP code search.

Facility Latitude/Longitude (All Data, Air, Water, Hazardous Waste)

Search for facilities based on latitude and longitude. ECHO allows you to search on latitude/longitude in multiple ways:

• Enter a valid latitude and longitude into the text box.
• Select "Use My Location" to auto populate the latitude and longitude fields based on your current location. To use this functionality, please allow ECHO permission to track your location through your internet browser.
• Latitude/Longitude Lookup - Search for latitude/longitude by address, city, country or location name.

Please note that facilities must have locational data (latitude/longitude) in EPA's Facility Registry Service to be included in this search. Data Quality Caveat

Latitude/Longitude Search Radius (All Data, Air, Water, Hazardous Waste)

Specify the search radius for a given latitude/longitude. Selection must be made in conjunction with the "Facility Latitude/Longitude" criteria. "1 mile" is selected by default.

Local Agency (Air Only)

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

In Indian Country (Drinking Water)

When “YES” is selected, your search results will be limited to facilities or permits where the tribe has primary enforcement responsibility over the operations of the facility from the EPA’s Facility Registry Service based on information that has been entered in EPA national program data systems of record. The accuracy and completeness of this information varies by system. “Indian country” is defined by statute at 18 U.S.C. 1151 to include all lands within Indian reservations, dependent Indian communities, and allotted lands. When “NO” is selected, your search results will exclude any facilities or permits that are located in Indian country. “ANY” will not restrict results.

For more information on primacy, see the Primary Enforcement Responsibility for Public Water Systems page.

Near US-Mexico Border (All Data, Air, Water, Hazardous Waste)

When ”YES” is selected, your search results will be limited to facilities within 100 km of the US-Mexico border. “ANY” will not restrict search results.

Indian Country/Tribal Land, Find Facilities That (All Data, Air, Water, Hazardous Waste)

When "Match All Tribal Options" is selected, your search results will return facilities that matches on all selected Indian Country/Tribal land search criteria. When "Match Any Tribal Option" is selected, your search results will return facilities that matches on any of the Indian Country Land search criteria selected. These options are not enabled until two or more Indian Country/Tribal Land search criteria are selected. "Match All Tribal Options" is the default selection.

FRS Tribal Land Code (All Data, Air, Water, Hazardous Waste)

When “YES” is selected, your search results will be limited to facilities or permits flagged as being located in Indian country, based on information that has been entered in EPA’s Facility Registry Service. The accuracy and completeness of this information varies by data system. “Indian country” is defined by statute at 18 U.S.C. 1151 to include all lands within Indian reservations, dependent Indian communities, and allotted lands. When “NO” is selected, your search results will exclude any facilities or permits that are located in Indian country. “ANY” will not restrict search results.

ICIS Tribal Land Flag (Air, Water)

When “YES” is selected, your search results will be limited to facilities or permits flagged as being located in Indian country, based on information entered in EPA's Integrated Compliance Information System (ICIS). The accuracy and completeness of this information varies by system, and may differ from the FRS Tribal Land Code. “Indian country” is defined by statute at 18 U.S.C. 1151 to include all lands within Indian reservations, dependent Indian communities, and allotted lands. When “NO” is selected, your search results will exclude any facilities or permits that are located in Indian country. “ANY” will not restrict search results.

RCRAInfo Indian Land Type Code (Hazardous Waste)

When “YES” is selected, your search results will be limited to facilities or permits flagged as being located in Indian country, based on information that has been entered in EPA’s Resource Conservation and Recovery Act Information (RCRAInfo). The accuracy and completeness of this information varies by system, and may differ from the FRS Tribal Land Code. “Indian country” is defined by statute at 18 U.S.C. 1151 to include all lands within Indian reservations, dependent Indian communities, and allotted lands. When “NO” is selected, your search results will exclude any facilities or permits that are located in Indian country. “ANY” will not restrict search results.

On or Near Spatial Tribal Boundary (All Data, Air, Water, Hazardous Waste)

Search for facilities that are located on or near tribal land. Search is based on EPA comparison of the facility locations 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. When “Within X miles” is selected, your search results will be limited to facilities or permits on tribal land and within the selected radius. “No Restrictions” is selected by default and does not restrict search results. You can focus your search on a specific tribal land using the “Tribes” criteria. Please note that facilities must have locational data (latitude/longitude) in EPA's Facility Registry Service to be included in this search. Data Quality Caveat

Tribes (All Data, Air, Water, Hazardous Waste)

Search for facilities located on or near a tribe, based on spatial/locational association. The information is based on EPA comparison of facility coordinates (in Facility Registry Service) to the U.S. Census Bureau 2016 tribal boundary layer data for tribes in the lower 48 states, and Bureau of Land Management Alaska State Office data for tribes in Alaska. Please note that facilities must have locational data (latitude/longitude) in EPA's Facility Registry Service to be included in this search. Data Quality Caveat.

Selection must be made in conjunction with the “On or Near Spatial Tribal Boundary” criteria. "No Restrictions" is selected by default and does not restrict search results. Enter at least one character. Select a tribe from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value.

Tribes (Drinking Water)
Search for drinking water systems located on a particular tribal land. Tribe names are maintained in SDWIS. Enter at least one character in the Tribes textbox. Select a Tribe from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list.

Watershed (HUC-2)/(HUC-6)/(HUC-8)/Name (Water)

Search for facilities by hydrologic units or watersheds. Select a region (HUC-2), basin (HUC-6), or subbasin (HUC-8) from the dropdown menus or use the Watershed Name to search for a HUC-2 to HUC-12 by name. Enter at least one character. Select a watershed from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list. By default, this option searches for watersheds based on data from the USGS Watershed Boundary Dataset (WBD). For Water, you may select the watershed data source to search on. Data source options include:

• Facility Registry Service (FRS) Derived — Search for facilities by the hydrologic unit spatially derived from the facility's geographic coordinates in FRS.
• Reach Access Database (RAD) — Search for facilities by the hydrologic unit from the Reach ACcess Database and derived from the USGS Watershed Boundary Dataset (WBD).

Data Quality Caveat: EPA makes no claims regarding the accuracy or precision of data concerning Indian country locations or tribal boundaries on the ECHO website. EPA has simply attempted to collect certain readily available information relating to Indian country locations. Questions concerning data should be referred to the originating program or Agency which can be identified in the Envirofacts tribal query metadata files Lower 48 Tribal Areas, Alaska Reservation, Alaska Native Villages, or Alaska Native Allotments. The Indian country and tribal boundary locations are suitable only for general spatial reference and do not necessarily reflect EPA's position on any Indian country locations or tribal boundaries or the land status of any specific location. The inclusion of Indian country information on the ECHO website does not represent any final EPA action addressing Indian country locations or boundaries. This information cannot be relied upon to create any rights, substantive or procedural, enforceable by any party in litigation with the United States or third parties. EPA reserves the right to change information on ECHO at any time without public notice.

EPA uses the U.S. Census Bureau 2016 tribal boundary layer data when developing environmental data query responses for tribes in the lower 48 United States and the Bureau of Land Management Alaska State Office when developing environmental data query responses for tribes in Alaska. EPA seeks to use the best available national federal data and may refine the tribal boundary layer in the future as more accurate national federal data becomes available.

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Facility/System Characteristics

Facility Name (All Data, Air, Water, Hazardous Waste)

Search for facilities or permits by name or partial name. Be sure to try all possible variations of a facility's name. For example, if an abbreviation does not work, try using whole words (i.e., International Metals Company instead of INMETCO). The search is not case sensitive.

Words separated by a space are treated as one search term. Separate multiple search terms with a semi-colon (“;”). Alternatively, click the Add More button to add a value to the Selected Search Criteria panel and clear the input field for a new value. This search allows data entry of up to 2,500 characters.

The search returns facilities that match any of the search terms. Note that a match may be found within any of the current facility names associated with the Facility Registry Service (FRS) ID; however, only the primary facility name is displayed in the search results table. The primary facility name may differ depending on the selected search type (e.g., the All Data search results table displays the facility name in FRS). For more information, see Facility Search Results Help.

Use the dropdown list adjust the facility name search logic. You do not need to use wildcard characters (* or %) in the Facility Name field to specify search logic. Note: You can only associate one type of search logic with selected search terms.

Find Facility Name(s) That:

• Contains Each Term (DEFAULT) – Returns facilities where all words in the facility name search terms are present in the facility name. The order of the words in a search term does not affect the search results.
  For example, searching for “town bridge” returns results that contain both “town” and “bridge” within the facility name, e.g., “Bridgeport Township” or “Middletown Bridge”
• Matches Exactly – Returns facilities where the facility name search terms exactly match the facility name.
  For example, searching for “The First Company” only returns results with a facility name exactly matching all terms and in this order.
• Matches Exact Phrase – Returns facilities where all search terms are found anywhere within the facility name. The order of the words in a search term affects the search results.
  For example, searching for “town bridge” returns different results than searching for “bridge town”
• Begins With - Returns facilities where the facility name search terms are found at the beginning of the facility name.
  For example, searching for “bridge” returns results that begin with “bridge”, such as “Bridgeport” and “Bridgestone,” but excludes results like “Middlebridge”.

Note: "Stop Words" are common terms which are excluded from the name search logic in order to retrieve more relevant results. These include: AND, OR, BT, INC, INCORPORATED, LLC, CORP, CORPORATION, LTD, COMPANY, and CO. 

System Name (Drinking Water Only)

Search for systems by name or partial name. Be sure to try all possible variations of a system's name. For example, if an abbreviation does not work, try using whole words (i.e., International Metals Company instead of INMETCO). The order of the words in a system name does not affect the search results. Click the Add More button to add a value to the Selected Search Criteria panel and clear the input field for a new value.

Facility ID Number (All Data, Air, Water, Hazardous Waste)

Search for facilities or permits by EPA Registry ID (i.e., FRS ID) or by the Program System ID (CWA, CAA, SDWA, or RCRA).  Allows data entry of up to 2,000 IDs pasted from spreadsheet column, or comma- or return-separated. 

Use the "Registry ID" option to search for the IDs entered, as well as all related IDs linked through FRS. All regulatory program systems IDs can be searched from the All Data Facility Search.

Use the "Program System ID" option to search only for the ID(s) entered into the text box.  If "Program System ID" is selected, it will search for IDs within the selected Facility Search Type (e.g., searches for matching ICIS-Air IDs when conducting an Air Facility Search). "Program System ID" is selected by default for the Air, Water, and Hazardous Waste searches. Program System IDs by search type include:

• ICIS-Air, CAMDBS, TRI, RMP, eGGRT, CEDRI, EIS IDs (Air Facility Search)
• NPDES ID (Water Facility Search)
• Handler ID (Hazardous Waste Facility Search)
• PWS ID (Drinking Water Facility Search)

The Air, Water, and Hazardous Waste searches allow entry of partial ID numbers with at least two characters. Entry of partial IDs will return facilities with ID numbers in any program that begin with the search term.

Note that active/operating facility or permit status is selected by default on the search form. If facility IDs are entered with active facility status also selected, you will not include inactive facilities in your search. Because some of the facility IDs may represent inactive facilities, records for all of the facility IDs may not be returned on the Search Results page. To prevent this, remove the active/operating default selection by using the "X" in the Search Criteria Selected box.

PWSID (Drinking Water Only)

A unique identifying code for a public water system in SDWIS. It consists of a two-letter state or region code, followed by seven digits.

SIC Code (All Data, Air, Water, Hazardous Waste)

The Standard Industrial Classification 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. ECHO allows you to search SIC Codes in multiple ways:

• Choose a 2-digit SIC Code from the drop-down menu.
• Type the 3- or 4-digit SIC Code into the text box. Click the Add More button to add a value to the Selected Search Criteria panel and clear the input field for a new value.
• SIC Code Lookup - Search for SIC codes by keyword.

Point Source Category (Water Only)

Search for NPDES IDs by likely Effluent Guidelines Point Source Category. Users may select a category from the drop-down menu.

Point Source Categories are industry categories that facilities are grouped in based on the release of pollutants from discrete point sources. Point source category classification is based on a facility's primary Standard Industrial Classification (SIC) code in EPA's national program data system ICIS-NPDES. Searching on point source category will only return records for facilities that 1) have a primary SIC code in ICIS-NPDES, and 2) have an SIC code that maps to a point source category.

 NAICS Code (All Data, Air, Water, Hazardous Waste)

The North American Industry Classification System (NAICS) replaced the U.S. Standard Industrial Classification (SIC) system. 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 you to search NAICS codes by general industry sector (the two-digit NAICS code) or by industry specialty (the three, four, five, or six-digit NAICS Code).

• Type the 2-, 3-, 4-, 5-, or 6-digit NAICS code into the text box. Click the Add More button to add a value to the Selected Search Criteria panel and clear the input field for a new value.
• Find NAICS Code by Keyword - Search for 2- to 6-digit NAICS codes by keyword. Enter at least one character. Select a NAICS code from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list. 

CAA Program (Air Only)

Search for facilities by Clean Air Act program. “No Restrictions” is selected by default and does not restrict search results.

• Acid Rain - Acid Rain Program (Title IV of the 1990 CAA Amendments)
• CFC - Chlorofluorocarbon CFC) requirement tracking
• FIP - Federal Implementation Plan
• MACT - Maximum Achievable Control Technology (Section 63 NESHAPS)
• NESHAP - National Emissions Standards for Hazardous Air Pollutants
• NSPS - New Source Performance Standards
• NSR - New Source Review
• PSD - Prevention of Significant Deterioration
• SIP - State Implementation Plan
• Title V - CAA Title V operating permit program

MACT Subpart (All Data, Air)

Search for facilities with Clean Air Act IDs by choosing a specific Maximum Achievable Control Technology (MACT) Subpart from the dropdown menu. “No Restrictions” is selected by default and does not restrict search results.

NSPS Subpart / NSPS Subpart (Non-Major) (Air Only)

Search for facilities with Clean Air Act IDs choosing a specific New Source Performance Standard (NSPS) Subpart. There are two dropdowns that can be used to select a subpart, one for Major facilities and one for Non-Major Facilities. 

Facility Status (Air Only)

The active facility status is composed of Operating (O), Seasonal (I) and Temporarily Closed (T) facilities. The Inactive facility status is composed of Permanently Closed (X), Planned (P), and Under Construction facilities (C).

The codes for the following are not related to Stationary CAA facilities; therefore, are not included in ECHO for query purposes: Landfill (L); NESHAP Renovation (R); NESHAP Spraying (S).

Population Served (Drinking Water Only)

The estimated average daily population served by a system. "All" does not restrict search results.

Federal Facility in FRS (All Data Only)

Search for facilities with federal designation in EPA's Facility Registry Service (FRS), according to combined data from a variety of program systems of record.

Permit Issuing Agency

Search for facilities or permits by issuing agency. Issuing agencies include:

• EPA – Selects facilities with permits issued by EPA.
• State – Selects facilities with permits issued by a state environmental agency.

Federal Agency (All Data, Air, Water, Hazardous Waste)

Choose an agency from the dropdown menu. Hold down the CTRL key to select multiple agencies. Search for facilities that have a federal agency name in EPA's Facility Registry Service (FRS) (representing installations that are owned and operated by the U.S. government).

And/Or (All Data, Air, Water, Hazardous Waste)

All Data

Select "And" to search for facilities that are designated as federal facilities in FRS and in a selected federal agency. Select "Or" to search for facilities either in a selected federal agency or are designated as federal facilities in FRS.

Air, Water, Hazardous Waste

Select "And" to search for facilities both in the selected federal agency and the selected owner type. Select "Or" to search for facilities either in the selected federal agency or the selected owner type.

Owner/Operator (Water Only)

Search for facilities by owner/operator type. Search options include: Corporation, County Government, District, Federal Facility (U.S. Government), Mixed Ownership (e.g. Public/Private), Municipal or Water District, Municipality, Non-Government, Privately Owned Facility, School District, State Government, and Tribal Government. Government Owned/Contractor Operated, Individual, and Unknown are included in the search options, but are inactive types in the source system.

Note: The Facility Type Indicator and Owner/Operator selections on the search page are mutually exclusive (i.e., users are able to search by Facility Type Indicator or by Owner/Operator, but not both). Selecting a value from one of these criteria will reset the other to "No Restrictions."

Owner Type (Air, Hazardous Waste, Drinking Water)

• Air - Type of facility owner
   
• Hazardous Waste - Type of facility owner in EPA's RCRAInfo database. Owner types include County, District, Federal, Tribal, Municipal,  Other, Private, State. 
   
• Drinking Water - Water system owner type.

Facility Type Indicator (Water Only)

Indicates the facility type based on the permit component and type of facility owner/operator. Search options include:

• Publicly Owned Treatment Works (POTW) - Treatment works that are owned by a State, Tribe, or municipality. POTWs can treat municipal sewage, industrial wastes, or a combination of the two.
• Non-Publicly Owned Treatment Works (Non-POTW) - All other facilities are non-POTWs and are often referred to as “non-municipals” or “industrials.”
• Federal Government - Federal facilities regulated under the NPDES program. Any buildings, installations, structures, land, public works, equipment, aircraft, vessels, and other vehicles and property, owned by, or constructed or manufactured for the purpose of leasing to, the federal government.

Note: The Facility Type Indicator and Owner/Operator selections on the search page are mutually exclusive (i.e., users are able to search by Facility Type Indicator or by Owner/Operator, but not both). Selecting a value from one of these criteria will reset the other to "No Restrictions."

Major Designation (Water Only)

• Yes - Returns any NPDES facility or activity classified as such by the regional administrator, or in the case of approved state programs, the regional administrator in conjunction with the state Director. Major municipal dischargers include all facilities with design flows of greater than one million gallons per day and facilities with EPA/State approved industrial pretreatment programs. Major industrial facilities are determined based on specific ratings criteria developed by EPA/State.
• No - Returns facilities for which states are not required to submit data to EPA. EPA is therefore not able to verify the accuracy or comparability of data for these permits, although the Agency tracks their names and locations and may have some data about their inspections and enforcement activity.
• Any - Selecting "Any" will return both major and non-major facilities. "Any" is selected by default. 

Permit Status (Water Only)

Search for a facility or permit by permit status. The Permit Status values reflect the stages in the permit life cycle.

• Effective - A permit that is in its lifetime (Effective Date <= current date < expiration date).
• Expired - A permit that 90 days after the expiration date has been reached on a permit that has no new Application Received Date or Complete Application Received date entered.
• Administratively Continued - A permit that is at the permit's expiration date. All monitoring data are still collected and used against the permit’s terms.
• Pending - A permit with incomplete data or a permit with an Effective Date that has not yet been reached.
• Retired - A permit that all monitoring data is stopped against a retired permit; used in conjunction with Reissue. If a Permit is reissued before its expiration date, the Permit Status Code or the previous version of the Permit will be set to Retired. Also, the Compliance Tracking status will be set to "Off".
• Terminated - A permit that if the user enters the Termination Date, upon that date being reached, the system will automatically change the Permit Status Code to Terminated. Also, the Compliance Tracking status will be set to "Off".
• Not Needed

​Effective, Expired, Administratively Continued, Pending, and Retired are selected by default.

Permit Type (Water Only)

Search for a facility or permit by permit classification. Permit classifications include:

• NPDES Individual Permit - An individual NPDES permit is unique to each facility. The limitations and other conditions in an individual permit are based on the facility's operations, type and amount of discharge, and receiving stream, among other factors.
• General Permit Covered Facility - A NPDES facility that is covered under a Master General Permit.
• NPDES Master General Permit - A NPDES permit that covers multiple facilities that have similar discharges and are located in a specific geographic area. A general permit applies the same or similar conditions to all dischargers covered under the general permit. This is the record for the general permit that is issued by the permitting authority. It sets the conditions with which permittees will be required to comply. The Master General Permit contains no facility-specific data, and compliance and enforcement data are associated with a Master General Permit (rather any data would be associated with the General Permit Covered Facility).
• Associated Permit Record - A system record associated to a NPDES permit.
• Individual IU Permit (non-direct discharge) - Industrial user in a pretreatment program (NPDES indirect discharger). Although an industrial user is not issued an NPDES Permit, a permit record is maintained for tracking purposes. 
• Individual State Issued Permit (Non-NPDES) - An individual permit unique to each facility, but not in the NPDES program.
• State Issued Master General Permit (Non-NPDES) - A state issued permit that covers multiple facilities that have similar discharges. The master general permit contains no facility-specific data.
• Unpermitted Facility - A facility that does not have an active NPDES permit.

NPDES Individual Permit, General Permit Covered Facility, and Unpermitted Facility are selected by default. "Any" does not restrict search results.

Permit Components (Water Only)

Search for an NPDES Permit with one of the following permit components:

• Biosolids - Biosolids (formerly referred to as "sewage sludge") are the nutrient-rich organic materials resulting from the treatment of sewage sludge (the name for the solid, semisolid or liquid untreated residue generated during the treatment of domestic sewage in a treatment facility). When treated and processed, sewage sludge becomes biosolids which can be safely recycled and applied as fertilizer to sustainably improve and maintain productive soils and stimulate plant growth. Biosolids are regulated under 40 CFR Part 503. 40 CFR Part 503 establishes standards, which consist of general requirements, pollutant limits, management practices, and operational standards, for the final use or disposal of biosolids.
• Concentrated Animal Feeding Operation (CAFO) - An NPDES permit regulating discharge from Concentrated Animal Feed Operations (CAFOs). CAFOs are animal feeding operations with more than 1,000 animals. CAFOs with a point source discharge are to receive permits.
• Combined Sewer Overflow (CSO) - A combined sewer overflow (CSO) refers to a discharge of untreated wastewater from a combined sewer system at a point prior to the headworks of the publicly-owned treatment works. (59 FR 18688) CSOs generally occur in response to wet weather events. Most combined sewer systems are designed to discharge excess flow directly to surface water bodies, such as streams, rivers, estuaries, and coastal waters.
• Publicly Owned Treatment Works (POTW) - The term Publicly Owned Treatment Works or POTW means a treatment works as defined by section 212 of the Act, which is owned by a State or municipality (as defined by section 502(4) of the Clean Water Act). This definition includes any devices and systems used in the storage, treatment, recycling and reclamation of municipal sewage or industrial wastes of a liquid nature. It also includes sewers, pipes and other conveyances only if they convey wastewater to a POTW Treatment Plant. The term also means the municipality as defined in section 502(4) of the Clean Water Act, which has jurisdiction over the Indirect Discharges to and the discharges from such a treatment works.
• Pretreatment - An NPDES permit that prescribes for the reduction of the amount of pollutants, the elimination of pollutants, or the alteration of the nature of pollutant properties in wastewater prior to or in lieu of discharging or otherwise introducing such pollutants into a publicly owned treatment works [40 CFR 403.3(q)].
• Construction Stormwater - Permit requirements associated with construction activities, as defined at 40 CFR 122.26.
• Industrial Stormwater - Permit requirements associated with non-construction activities at industrial facilities, as defined at 40 CFR 122.26(b)(14)(i) through (xi).
• Urban Stormwater - Medium/Large Municipal Separate Storm Sewer System (Medium/Large MS4) - Additional requirements for medium/large municipal separate storm sewer systems (MS4s), as defined at 40 CFR 122.26.
• Urban Stormwater - Small Municipal Separate Storm Sewer System (Small MS4) - Additional requirements for small municipal separate storm sewer systems (MS4s), as defined as 40 CFR 122.30-122.37.

Combined Sewer System (Water Only)

A combined sewer system (CSS) is a wastewater collection system owned by a municipality which conveys sanitary wastewater (domestic, commercial, and industrial) and stormwater through a single pipe system to a publicly-owned treatment works. A combined sewer overflow (CSO) is the discharge from a CSS at a point prior to the treatment plant. CSOs are point sources subject to NPDES permit requirements including both technology-based and water quality-based requirements of the Clean Water Act. 

Permit Expiration Date (Water Only)

Search for facilities based on permit expiration date. You may search for facilities with expired permits, permits that will expire within the year, or permits that will expire in more than a year.

Permit Limits Present (Water Only)

Search for a facility that has permit limits present. Permit limits limit the amount of pollutants a wastewater treatment plant may discharge.

System Type (Drinking Water Only)

The type of public water system (PWS). A public water system is a system for the provision to the public of piped water for human consumption, which has at least 15 service connections or regularly serves an average of at least 25 individuals at least 60 days out of the year.

• Community water system (CWS) - A public water system that serves at least 15 service connections used by year-round residents or regularly serves at least 25 year-round residents.
• Non-community water system (NCWS) - A public water system that is not a community water system.
  • Non-transient non-community water system (NTNCWS) - A non-community water system that regularly serves at least 25 of the same nonresident persons per day for more than six months per year.
  • Transient non-community water system (TNCWS) - A non-community water system that does not serve 25 of the same nonresident persons per day for more than six months per year.
• Unknown - The primacy agency did not report the type of system to EPA.

Source Water Type (Drinking Water Only)

• Surface water - All water naturally open to the atmosphere (rivers, lakes, reservoirs, streams, impoundments, seas, estuaries, etc.) and all springs, wells, or other collectors that are directly influenced by surface water.
• Ground water - The supply of fresh water found beneath the Earth's surface, usually in aquifers, often used for supplying wells and springs.
• Ground water under direct influence of (UDI) surface water - Any water beneath the surface of the ground with:
  • significant occurrence of insects or other macroorganisms, algae, or large-diameter pathogens such as Giardia lamblia; or
  • significant and relatively rapid shifts in water characteristics such as turbidity, temperature, conductivity, or pH that closely correlate to climatological or surface water conditions. Direct influence must be determined for individual sources in accordance with criteria established by the State. The State determination of direct influence may be based on site-specific measurements of water quality and/or documentation of well construction characteristics and geology with field evaluation.
• Purchased (Surface, Ground, Ground UDI Surface) Water - Indicates that some or all of the water has been purchased from another public water system.

Counties Served (Drinking Water Only)

Counties to which the system provides drinking water. Data on counties served may be incomplete and have not been quality assured.

Activity Status (Drinking Water Only)

Search for systems with an active or inactive designation. Default is “YES”.

• Active - A system is active if it produces drinking water on a regular basis. A seasonal water system may also be considered active, if it is expected to resume operation within the year.
• Inactive - Not active. This includes systems that have gone out of business or been merged into other drinking water systems.

Active/Operating (All Data Only)

Search for facilities with an active or inactive designation. The default selection “ANY” does not restrict search results. 

CAA (Air)
Active facilities are those whose status is any of the following:

• Operating
• Seasonal
• Temporarily Closed

Inactive facilities include facilities whose status is any of the following:

• Permanently Closed
• Planned
• Under Construction

CWA (Water)
"Active Facilities" are facilities with a permit status of Effective, Administratively Continued, or Expired.

RCRA (Hazardous Waste)
Active/Inactive Site designation is based on the information currently in the Agency's RCRAInfo database. "Active" indicates a facility has activities occurring that are regulated under the federal Resource Conservation and Recovery Act (RCRA), Subtitle C, or an authorized state's hazardous waste management regulations/statutes; or a site which has not been determined to be inactive for such regulated activities. This designation has no legal or regulatory significance.

SDWA (Drinking Water)
A system is active if it produces drinking water on a regular basis. A seasonal water system may also be considered active, if it is expected to resume operation within the year.

Other Programs
These facilities also are considered "active": Toxics Release Inventory reporter in the most recent year, facility with EPA formal enforcement action in the past year, facility with EPA inspection in the past year.

Active (Hazardous Waste Only)

Search for facilities with an active or inactive designation. The default selection “ANY” does not restrict search results. 

Active/Inactive Site designation is based on the information currently in the Agency's RCRAInfo database. "Active" indicates a facility has activities occurring that are regulated under the federal Resource Conservation and Recovery Act (RCRA), Subtitle C, or an authorized state's hazardous waste management regulations/statutes; or a site which has not been determined to be inactive for such regulated activities. This designation has no legal or regulatory significance.

Major Facility (All Data Only)

Use this button to limit your search to larger facilities. For purposes of this search, “major” refers to CAA federally-reportable sources, CWA major permittees, and RCRA treatment, storage, and disposal facilities and large quantity generators. Default is “ANY”.

Classification (Air)

• Major Emissions - Facilities which meet the definition of a Major source under the 1990 Clear Air Act Amendments. A Major source is one for which actual or potential emissions are above the applicable major source threshold. Major source thresholds for regulated pollutants run from 100 tons down depending on the pollutant toxicity and ambient air quality.
• Synthetic Minor Emissions - A facility that avoids Major source requirements by accepting permit conditions which limit emissions below major source thresholds.
• Federally Reportable Minor - A Minor source subject to Part 61 National Emissions Standards for Hazardous Air Pollutants (NESHAP). These sources are kept under close scrutiny because the standards are health based, and violation could imperil human health. OR Any Minor source which is subject to a formal enforcement action, including an Administrative Order, or Civil Suit in the past three years; or has an HPV that is unresolved; or is included on a Compliance Monitoring Strategy plan.
• Emissions Classification Unknown - A facility with an unknown classification.
• Other - A facility that is neither a Major nor a Synthetic Minor source.
• Not Applicable - A classification does not apply to a facility.

Universe (Hazardous Waste)

Select one or more options to search on the designated hazardous waste handler type, including Treatment, Storage and Disposal Facility (TSDFs), Large Quantity Generator (LQG), Small Quantity Generators (SQG), Very Small Quantity Generator (VSQG), and Transporters. Please refer to EPA's Hazardous Waste website for more information about hazardous waste management universes.

Restrict by Media (All Data, Air, Hazardous Waste, Water)

Search for facilities by choosing a type of environmental permit or ID from the dropdown menu.

• Must (also) have Water Permit (ICIS-NPDES)
• Must (also) have ICIS-Air ID
• Must (also) have Resource Conservation and Recovery Act (RCRA) ID
• Must (also) have Risk Management Plan (RMP) Rule ID
• Must (also) have Safe Drinking Water Act (SDWA) ID
• Must (also) have Superfund Enterprise Management System (SEMS) ID
• Must (also) have Clean Air Markets Division Business System (CAMDBS) ID
• Must (also) have Toxics Release Inventory (TRI) Program ID 
• Must (also) have Greenhouse Gas Reporting (GHG) Program ID 
• Must (also) have Emissions Inventory System (EIS) ID
• Must (also) have Toxic Substances Control Act (TSCA) ID  

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Enforcement and Compliance

Time Since Last Inspection (All Data, Water, Hazardous Waste)

Search for a facility or permit based on the time elapsed since the most recent "official" inspection (defined by statutory program, often on-site compliance evaluations). To specify your date range, select either “Within” or “None Within” and use the slider to select up to the past 5 years or use the date from/to options (Water and Hazardous Waste Searches only) to select up to 5 years prior to the current date. When a value other than “No Restrictions” is selected, you can focus your search by choosing to search for facilities in which the last inspection was conducted by EPA or a state agency or search for specific inspection types. Select "Never Inspected" to search for facilities that have not had any "official" inspections recorded in the source databases.

Inspection By Statute (All Data)

Search by the environmental statute under which the inspection was conducted. Hold down the CTRL key to select more than one statute.

Inspection Type (Water, Hazardous Waste)

Water
Search for a facility or permit based on one or more inspection types.

On-site Inspection Types:

• AFD - Animal Feeding Operation (AFO) Defined
• AFN - AFO Designation
• AU1 – Audit
• AU2 – Audit
• CBI – Biomonitoring
• CEI – Evaluation
• CE2 – Evaluation
• DIA – Diagnostic
• FLP - Follow-Up
• OPM - Operation and Maintenance
• PIU - Non-Sampling
• PSI – Sampling
• ROS - Reconnaissance without Sampling
• RWS - Reconnaissance with Sampling
• SA1 – Sampling
• TX1 – Toxics
• TX2 – Toxics

Off-site Inspection Types:

• ADR - Asbestos Demolition and Renovation
• AER - Aerial Photography
• CAI - Compliance Assistance Inspection
• CCP - Citizen Complaint
• CDI - Case Development
• CEF - Full Evaluation
• CEP - Partial Evaluation
• OSN - Noncompliance Rate
• OSV - On Site Visit
• PRV - Plan Review
• RMT - Remote Sensing
• SCE - Schedule Evaluation
• WIT - Witness Response Drill

Hazardous Waste
Search for a facility based on one or more inspection types.

On-Site Inspection types:

• CAC - Corrective Action Compliance Evaluation
• CDI - Case Development Inspection
• CEI - Compliance Evaluation Inspection
• CSE - Compliance Schedule Evaluation
• FCI - Focused Compliance
• FUI - Follow-Up Inspection
• GME - Groundwater Monitoring Evaluation
• OAM - Operation and Maintenance Inspection

Off-Site Inspection types:

• CAV - Compliance Assistance Visit
• FRR - Financial Record Review
• FSD - Facility Self Disclosure
• NRR - Non-Financial Record Review

Time Since Last Compliance Evaluation (Air Only)

Search for facilities based on the time elapsed since the last compliance evaluation. To specify your date range, select either “Within” or “None Within” and use the slider to select up to the past 5 years or use the date from/to options. When a value other than “No Restrictions” is selected, you can focus your search by choosing to search for facilities in which the evaluation was conducted by EPA or by the state and search for specific compliance evaluation types. Select "Never Evaluated" to search for sources that have not had any full compliance evaluations recorded in the source database.

Compliance Evaluation Type (Air Only)

Search a facility based on the type of compliance evaluation conducted. "Any Full Compliance Evaluation" is selected by default.

Full Compliance Evaluation (FCE) Types:

• FFO - FCE Off-Site
• FOO - FCE On-Site

Partial Compliance Evaluation (PCE) Types:

• PFF - PCE Off-Site
• PCE - PCE On-Site
• POI - PCE On-Site Interview
• POM - PCE On-Site Monitoring/Sampling
• POR - PCE On-Site Record/Report Review
• POV - PCE On-Site Visible Emission Observation
• CST - Stack Test
• TVA - Title V Annual Compliance Certification (TV ACC) Receipt/Review

Time Since Last Stack Test (Air Only)

Search for facilities based on the time elapsed since the most recent stack test. When a value other than “No Restrictions” is selected, you can focus your search by choosing to search for facilities in which the last stack test was by EPA or by the state. To specify your date range, select either “Within” or “None Within” and use the slider to select up to the past 5 years.

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.

Stack Test Results (Air Only)

Search for facilities based on the result of the stack test within the last year. Time Since Last Stack Test must first be selected to search on stack test results.

Stack Test Type (Air Only)

Search for facilities based on the type of stack test conducted. Time Since Last Stack Test must first be selected to search on stack test type.

Compliance Tracking (Water Only)

Search for NPDES permits based on compliance tracking statuses in ICIS-NPDES. The Compliance Tracking selections can assist you in interpreting the compliance status, particularly for non-major permittees. There are two components of compliance tracking, including Discharge Monitoring Report (DMR) non-receipt tracking and facility-level compliance status tracking. Note that compliance tracking may not be entered for some permits, as it does not apply to “Not Needed” or “Pending" permit statuses or "Unpermitted" permit type. The compliance tracking statuses can only be turned off for non-major permittees.

• "On" generally indicates that data are being entered and all system compliance tracking is on. In ICIS-NPDES, Permit Compliance Tracking Status and DMR Non-Receipt Status are both set to “Yes”.
• "Partial" generally indicates that some data are being entered, effluent exceedances and most facility-level status types are being identified, but DMR non-receipt is not being tracked, which suggests not all DMR data are being entered. In ICIS-NPDES, Permit Compliance Tracking Status is set to “Yes” and DMR Non-Receipt Status is set to “No”.
• "Off" indicates that data both compliance tracking flags are off (i.e., ICIS-NPDES will not determine a facility-level compliance status). In ICIS-NPDES, Permit Compliance Tracking Status is set to “No.” Facilities with compliance tracking “off” may have violations on their hard copy DMRs that are not recorded in the ICIS-NPDES database.

Compliance Issues Found During Inspection (Hazardous Waste Only)

Restrict results based on whether compliance issues were found during an inspection of a RCRA site. Selecting "Yes" will return facilities that were found to have compliance issues during an inspection. Selecting "No" will return facilities that were inspected and found to be in compliance.

 Time Since Last Site Visit (Drinking Water Only)

Search for a system based on the time elapsed since the most recent site visit. To specify your date range, select either “Within” or “None Within” and use the slider to select up to the past 5 years or use the date from/to options to select up to 5 years prior to the current date. You can also select "Never Visited" to search for facilities that have no documented site visits. You can focus your search by choosing to search for systems in which the last site visit was conducted by EPA or a state agency. The default selection is Any, which searches for systems with either EPA or state site visits. You can also use the Site Visit Type dropdown to search specifically for systems that had Inspections or Non-inspections. The default selection is Any Site Visit, which includes all types of site visits. 

Compliance Status (All Data, Water, Hazardous Waste)

All Data

Search by overall compliance status across the program systems. Use the slider to select the compliance status of interest:

• Any Violation - search for facilities with any type of violation, including significant violations, in the most recent quarter.
• Significant Violation - search for facilities that have been determined to be in more severe noncompliance for the most recent quarter (air high priority violator, water/hazardous waste significant noncompliance, drinking water serious violator).
• Multiple Significant Violations - search for facilities that have been determined to be in more severe noncompliance for two or more programs (air, water, hazardous waste, drinking water) in the most recent quarter.

Water

The Water Compliance Status search offers flexibility in finding facilities with particular types of violations. Program system-generated codes are categorized in the "basic" view and listed individually in the "advanced" view. To switch between the two views, click the "View More/Less Options" toggle just above the search form. Users may search on more than one compliance status. To search on multiple compliance statuses, select one value at a time from the dropdown list. Users may combine criteria from both the advanced and basic view. In Google Chrome, the Water Compliance Status criteria can be selected from a list. In Internet Explorer, the criteria can be selected from a dropdown menu. 

Basic View

 

• No Restrictions - does not restrict search results.
• Significant/Category I Noncompliance - Violations by point source dischargers of sufficient magnitude or duration to be a regulatory priority. The national program database calculates the severity of violations according to the Clean Water Act regulations, which have specific criteria specifying the duration, severity, and type of violations that rise to the level of SNC. The calculation of Category I Violations is equivalent to the SNC calculations, but because the violations occur at smaller dischargers (non-major), EPA does not classify the violations as "SNC". Repeat SNC occurrences normally are addressed through formal enforcement actions, while Category I Violations are often addressed via informal processes. (SNC/Category I types in order of severity: Compliance Schedule Violations, Effluent Exceedance Monthly, Effluent Exceedance Non-monthly,  Compliance Schedule Non-receipt, Discharge Monitoring Report Non-receipt)
• Violation/Category II Noncompliance - Violations that are not significant upon first discovery but become significant if repeated. The noncompliance reports do not have to be submitted immediately, but are to be included the next time the facility submits monitoring reports to the regulatory agency.
• New Violations - Violations identified or continuing after the end date of the most recent Quarterly Noncompliance Report (QNCR) (e.g., new or ongoing violations in "Quarter 13" of the Detailed Facility Report compliance history table). These data are considered draft and have not been fully quality assured. The QNCR description is provided in the Detailed Facility Report Data Dictionary. 
• No Violation - No known violation recorded in the current quarter.

Advanced View

 

Program system-generated codes are listed individually in the advanced view. The Significant Noncompliance (SNC)/Category I types in order of severity are:  Compliance Schedule Violations,  Effluent Exceedance Monthly,  Effluent Exceedance Non-monthly,  Compliance Schedule Non-receipt,  Discharge Monitoring Report Non-receipt.

 

• Significant/Category I Noncompliance
  • Compliance/Permit Schedule - Reporting - Compliance schedule non-receipt.
  • Compliance/Permit Schedule - Violations - An enforcement action has been issued, and the facility is not meeting its compliance schedule.
  • Effluent - Monthly Average Limit - The facility has exceeded the monthly effluent restrictions established by a state or EPA on quantities, rates, and concentrations in wastewater discharges.
  • Effluent - Non-monthly Average Limit - The facility has exceeded the non-monthly effluent restrictions established by a state or EPA on quantities, rates, and concentrations in wastewater discharges.
  • Failure to Report DMR - Not Received - Discharge Monitoring Report (DMR) not received.
• Violation/Category II Noncompliance
  • Failure to Report DMR - Missing Data - Discharge Monitoring Report (DMR) missing data.
• New Violations - Effluent exceedances reported after the last Quarterly noncompliance Report (QNCR) was issued. These data are considered draft and have not been fully quality assured. A QNCR description is provided in the Detailed Facility Report Data Dictionary. 
• No Violation - Indicates no violation recorded in the current quarter.
  • Blank - No Violations - No violation recorded in the current quarter.
  • ​Resolved - The facility has returned to compliance with its permit conditions, either with or without issuance of an enforcement action.
  • Resolved - Pending - An enforcement action has been issued, and facility compliance with the action is pending final completion.
  • Unknown/Undetermined - No Data - EPA's data system is not able to determine the facility-level compliance status because the system has not been set to track it or the data haven't been entered. This information may be available from a state database.
  • Violations Manually Overridden - Not considered in RNC/SNC based on manual review of data by state or EPA region.

Hazardous Waste
Select one or more of the following options to search by RCRA compliance status.

• No Restrictions - This option does not restrict search results.
• Significant Noncomplier - A RCRA site is considered to be a Significant Noncomplier when there is actual exposure or a substantial likelihood of exposure to hazardous waste/constituents, is a chronic or recalcitrant violator; or a substantial deviation from the terms of a permit, order, agreement, or RCRA statutory or regulatory requirements.
• Noncomplier - When a RCRA site is in any violation that is not considered to be a Significant Noncomplier. See Violation Type for more information on violations.
• No Violation - Returns RCRA sites that have no current violations. Selecting this option disables the selection of Violation Type and Number of Current Violations.

Recent Violations (Air Only)

Search for a facility based on the type of recent violation. "No Restrictions" does not further restrict search results. Recent violations include:

• all unresolved enforcement actions involving high priority violations (HPVs); and
• any federally-reportable violations (FRVs) with a determination date in the last four quarters.

"Unresolved" means that the enforcement action is not concluded; it does not necessarily mean that the violation is still ongoing. Enforcement agencies can elect to report the dates the violation actually ends, but are not required to do so. EPA no longer tracks compliance status for FRVs, so the "recent violations" search instead uses the FRV determination date.

Current Violation Type (Hazardous Waste Only)

Search for RCRA sites that are in violation for the selected violation types. Violation type selections apply to the facility's current compliance status.

Enter at least one character. Select a Violation Type from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list.

Violation types include:

• 265.J - TSD IS-Tank System Standards
• 265.K - TSD IS-Surface Impoundment Standards
• 265.L - TSD IS-Waste Pile Standards
• 265.M - TSD IS-Land Treatment Standards
• 265.N - TSD IS-Landfill Standards
• 265.O - TSD IS-Incinerator Standards
• 265.P - TSD IS-Thermal Treatment
• 265.Q - TSD IS-Chemical Physical AND Treatment
• 265.R - TSD IS-Underground Injection
• 265.W - TSD IS-Drip Pad Standards
• 265.AA - TSD IS-Air Emission Standards - Process Vents
• 265.BB - TSD IS-Air Emission Standards - Equipment Leaks
• 265.CC - TSD IS-Air Emission Standards - Tank/SI/Container
• 265.DD - TSD IS-Containment Building Standards
• 265.EE - TSD IS-Munitions/Explosives Storage
• 266.C - Specific - Use Constituting Disposal
• 266.F - Specific - Precious Metal Recovery
• 266.G - Specific - Batteries Reclaimed
• 266.H - Specific - Boilers and Industrial Furnaces
• 266.M - Specific - Military Munitions
• 266.N - Specific - Mixed Waste Exemption
• 266.O - Specific - US Filter Recovery Services XL Waste
• 268.A - LDR - General
• 268.B - LDR - Schedule
• 268.C - LDR - Prohibitions
• 268.D - LDR - Treatment Standards
• 268.E - LDR - Storage Prohibitions
• 270.A - Permits - General Information
• 270.B - Permits - Application
• 270.C - Permits - Conditions
• 270.D - Permits - Changes
• 270.E - Permits - Expiration and Continuation
• 270.F - Permits - Special Forms
• 270.G - Permits - Interim Status
• 270.H - Permits - Remedial Action Plans
• 270.I - Permits - MACT Standards
• 271.A - State Authorization Requirements

• 273.A - Universal Waste - General
• 273.B - Universal Waste - Small Quantity Handlers
• 273.C - Universal Waste - Large Quantity Handlers
• 273.D - Universal Waste - Transporters
• 273.E - Universal Waste - Destination Facilities
• 273.F - Universal Waste - Import Requirements
• 273.G - Universal Waste - Petitions to Include Other Waste
• 279.A - Used Oil - Definitions
• 279.B - Used Oil - Applicability
• 279.C - Used Oil - Generators
• 279.D - Used Oil - Collection Centers AND Point
• 279.E - Used Oil - Transporter and Transfer Facility
• 279.F - Used Oil - Processors and Re-refiners
• 279.G - Used Oil - Burners of Off-Spec for Energy Recovery
• 279.H - Used Oil - Fuel Marketers
• 279.I - Used Oil - Dust Suppressant and Disposal
• FEA - Formal Enforcement Agreement or Order
• FSS - Federal or State Statute
• PCR - Permit Condition or Requirement
• XXS - State Statute or Regulation
• 262.K - Generators - Academic Labs
• 260.B - HW Management System - Definitions
• 260.C - HW Management System - Rulemaking Petitions
• 261.A - Listing - General
• 261.B - Listing - Criteria
• 261.C - Listing - Characteristics
• 261.D - Listing - Lists of HW
• 262.A - Generators - General
• 262.B - Generators - Manifest
• 262.C - Generators - Pre-transport
• 262.D - Generators - Records/Reporting
• 262.E - Generators - Exports
• 262.F - Generators - Imports
• 262.G - Generators - Farmers
• 262.H - Generators - Transfrontier Shipments for Recovery
• 263.A - Transporters - General
• 263.B - Transporters - Manifest and Recordkeeping
• 263.C - Transporters - HW Discharges

• 264.A - TSD - General
• 264.B - TSD - General Facility Standards
• 264.C - TSD - Preparedness and Prevention
• 264.D - TSD - Contingency Plan and Emergency Procedures
• 264.E - TSD - Manifest/Records/Reporting
• 264.F - TSD - Releases from SWMU
• 264.G - TSD - Closure/Post-Closure
• 264.H - TSD - Financial Requirements
• 264.I - TSD - Container Use and Management
• 264.J - TSD - Tank System Standards
• 264.K - TSD - Surface Impoundment Standards
• 264.L - TSD - Waste Pile Standards
• 264.M - TSD - Land Treatment Standards
• 264.N - TSD - Landfill Standards
• 264.O - TSD - Incinerator Standards
• 264.S - TSD - Corrective Action for SWMU
• 264.W - TSD - Drip Pad Standards
• 264.X - TSD - Miscellaneous Unit Standards
• 264.AA - TSD - Air Emission Standards - Process Vents
• 264.BB - TSD - Air Emission Standards - Equipment Leaks
• 264.CC - TSD - Air Emission Standards - Tanks/SI/Containers
• 264.DD - TSD - Containment Building Standards
• 264.EE - TSD - Munitions/Explosives Storage
• 265.A - TSD IS-General
• 265.B - TSD IS-General Facility Standards
• 265.C - TSD IS-Preparedness and Prevention
• 265.D - TSD IS-Contingency Plan and Emergency Procedures
• 265.E - TSD IS-Manifest/Records/Reporting
• 265.F - TSD IS-Ground-Water Monitoring
• 265.G - TSD IS-Closure/Post-Closure
• 265.H - TSD IS-Financial Requirements
• 265.I - TSD IS-Container Use and Management
• 262.34(A) - Generators - General
• 261.E - Listing - Characteristics

Latest Violation Status (Drinking Water Only)

Select systems with violations that are unresolved (neither corrected nor addressed) or that may have occurred, based on the latest date that EPA knows the compliance status. EPA does not generally know the exact date of a violation, but only the compliance period during which each violation took place, so this actually searches for the types of violations from the latest quarter of compliance or the last date on which the state reported any activities (whichever is later). "No Restrictions" does not restrict search results.

• Serious Violator - A public water system with unresolved serious, multiple, and/or continuing violations, as identified by the quarterly application of EPA's Drinking Water Enforcement Response Policy (PDF)(16 pp, 952 K, About PDF), that must either return to compliance or be addressed by a formal enforcement action within six months.
  EPA designates serious violators so that the drinking water system and the primacy agency will act quickly to resolve the most significant drinking water violations. Many public water systems with violations, however, are not serious violators. Operators and the primacy agencies are expected to correct the violations at non-serious violators as well, but without imposition of the deadlines applicable to serious violators. If the violations at a non-serious violator are left uncorrected, that system may become a serious violator. When a serious violator has returned to compliance or has been addressed by a formal enforcement action, it is no longer designated a serious violator. EPA updates its serious violator list on a quarterly basis.
• Health-Based Violations - Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
• Monitoring and Reporting Violations - Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency.
• Public Notice Violations - Violations of the public notification requirements of SDWA, which require systems to immediately alert consumers if there is a serious problem with their drinking water that may pose a risk to public health.
• Other Violations - Violations of other requirements of SDWA, such as issuing annual consumer confidence reports or maintaining required records.
• New Violations Only (Unofficial) - Violations that have been reported to SDWA since end of the last official quarter. These violations are considered draft and do not reflect the official compliance status for the facility.
• No Violations - EPA does not know of any unresolved violations for this system.

Months in HPV (Air Only)

Search for CAA facilities based on the number of months in high priority violation (HPV) status.

Number of Effluent Exceedances (Water Only)

Search for NPDES permits where effluent limits have been exceeded in the previous one, two, or three years from present day. Years are based on Discharge Monitoring Report (DMR) dates and the number entered into the search form is the minimum number criteria. 

Number of Current Violations (Hazardous Waste Only)

Use the dropdown menu to search for RCRA facilities based on the number of current violations.

Facilities with Continuing Violations (Hazardous Waste Only)

Search for RCRA facilities based on the length of continuing violations. Select a time frame from the dropdown menu.

Quarters as a Serious Violator (3 years) (Drinking Water)

Search for public water systems which have been determined to be a serious violator in the past 3 years (12 quarters).

Quarters with Significant noncompliance (3 years) (Hazardous Waste)

Search for permits which have been determined to be in significant noncompliance in the past 3 years (12 quarters).

Quarters with Violation (3 years) (All Data, Water, Hazardous Waste, Drinking Water)

Use the dropdown menu to search based on the number of quarters a facility, permit, or system was in violation over the past 3 years.

Violations in Selected Period (Water Only)

Search for permits with DMR, single event, permit schedule, or compliance schedule violations during a specific quarter of the federal fiscal year. A quarter is any of the following three-month periods: October-December (Quarter 1), January-March (Quarter 2), April-June (Quarter 3), and July-September (Quarter 4).

Quarters with Violations Reported (3 years) (Air Only)

Use the dropdown menu to search based on the number of quarters a facility had reported violations of its CAA programs.

Pollutant with Recent Violation (Air Only)

Search for facilities based on the type of pollutant that holds the facility in violation status in the past year. Enter at least one character. Select a pollutant from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list.

Informal Enforcement Actions

Search for a facility or permit based on an informal enforcement action or notice of violation issued to the facility. To specify your date range, select either “Within” or “None Within” and use the slider to select up to the past 5 years. When a value other than “No Restrictions” is selected, you can focus your search further by selecting an agency. 

Formal Enforcement Actions

Search for a facility or permit based on the time elapsed since the most recent formal civil or administrative enforcement action taken against the facility. To specify your date range, select either “Within” or “None Within” and use the slider to select up to the past 5 years.

When a value other than "No Restrictions" is selected, you can focus your search by choosing one of the following criteria:

• By Agency – The environmental agency that issued the enforcement action. ”Any” does not further restrict search results.
• By System – The EPA source database containing information about the enforcement action. “ICIS Only” will return facilities with enforcement action information found in the ICIS Federal Enforcement and Compliance database (ICIS-FE&C). “All Systems” does not further restrict search results.

Formal Enforcement Type (Air, Water, Hazardous Waste)

Search for a facility or permit based on the type of action the enforcement authority used.

Formal enforcement types include:

• Administrative - Formal (AFR) - Non-judicial enforcement actions taken by EPA or a state under its own authority, without involving a judicial court process.
• Judicial (JDC) -  Formal lawsuits, filed in court, against persons or entities that have failed to comply with statutory or regulatory requirements or with an administrative order.

Hazardous Waste formal enforcement types include: Any Action, 210 - Initial 3008(a) Compliance Order, 220 - Initial Imminent and Substantial Endangerment Order, 230 - Initial Monitoring, Analysis, Test Order, 240 - Initial 3008(h) I.S. CA Order, 250 - Field Citation, 310 - Final 3008(a) Compliance Order, 320 - Final Imminent Hazard Order, 330 - Final Monitoring, Analysis, Test Order, 340 - Final 3008(h) I.S. CA Order, 380 - Super CA/FO, 410 - Referral to Attorney General, 420 - Referral to Department of Justice, 425 - Referral to DOJ to Collect Penalties, 430 - Referral to District Attorney/City Attorney/County Attorney/State Attorney, 510 - Initial Civil Judicial Action for Compliance and/or Monetary Penalty, 520 - Initial Civil Action for Imminent and Substantial Endangerment, 530 - Initial Judicial Action for Corrective Action, 610 - Final Civil Judicial Action for Compliance and/or Monetary Penalty, 620 - Final Civil Action for Imminent and Substantial Endangerment, and 630 - Final Civil Judicial Action for Interim Corrective Action.

Penalties (All Data, Air, Hazardous Waste)

Search for a facility or permit based on when a penalty was last assessed. Select a time frame from the dropdown menu.

Sanitary Surveys Completed (Drinking Water Only)

Search for public water systems that have either completed or have not completed a sanitary survey within five years. All public water systems are required to be evaluated by a sanitary survey every three to five years. A sanitary survey is an on-site review of a system's water source, treatment, distribution system, storage, pumps, monitoring and reporting, management and operation, and operator compliance, and intended to point out sanitary deficiencies and assess the system’s capability to supply safe drinking water.

Significant Deficiencies Found (Drinking Water Only)

For a public water system that has conducted a sanitary survey within five years, search for public water systems with or without significant deficiencies within the past five years or within the last survey completed.

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Environmental Conditions

Nonattainment Area for Any Pollutant (All Data, Air)

Search for facilities that are located in a nonattainment area for which EPA has developed GIS shapefiles. A nonattainment area is an area that does not meet one or more of the National Ambient Air Quality Standards for six commonly found air pollutants ("criteria pollutants") designated in the Clean Air Act: particle pollution (often referred to as particulate matter), ground-level ozone, carbon monoxide, sulfur oxides, nitrogen oxides, and lead. Nonattainment areas for the following standards are currently included in ECHO:

• Ozone 8 hr (1997 Standard)
• Ozone 8 hr (2008 Standard)
• Ozone 8 hr (2015 Standard)
• Carbon Monoxide (1971 Standard)
• Lead (1978) Standard)
• Lead (2008 Standard)
• PM 2.5 (1997 Standard)
• PM 2.5 (2006 Standard)
• PM 2.5 (2012 Standard)
• PM 10 (1987 Standard)
• Nitrogen Dioxide (1971 Standard)
• Sulfur Dioxide (1971 Standard)
• Sulfur Dioxide (2010 Standard)

“No Restrictions” is selected by default and places no restrictions on the search. Select “Nonattainment Status” to identify facilities located within an area where air pollution levels persistently exceed the U.S. National Ambient Air Quality Standards (NAAQS). Select "Nonattainment or Maintenance Status" to identify facilities located in a nonattainment or maintenance nonattainment area, or "None" to exclude facilities located in a nonattainment or maintenance nonattainment area.

Discharging into Impaired Waters (All Data, Water)

Limit your search to permits discharging directly into category 4 or 5 impaired waters. The impaired waters search flag includes facilities that discharge into an impaired water body for which a plan has not yet been developed - these are listed waters under the CWA section 303(d) program (category 5 water body) – as well as facilities that discharge to an impaired water body for which the state has developed a plan to return the water to its designated uses - under the Total Maximum Daily Loads (TMDL) program (category 4 water body). “No Restrictions” is selected by default and places no restrictions on the search. Select “Yes” to identify facilities that are discharging into impaired waters or “No” to exclude facilities that are discharging into impaired waters.

Under section 303(d) of the CWA, states, territories, and authorized tribes are required to develop lists of impaired waters. These are waters for which technology-based regulations and other required controls are not stringent enough to meet the water quality standards set by states. The law requires that states establish priority rankings for waters on the lists and develop Total Maximum Daily Loads (TMDLs), for these waters. A TMDL is a calculation of the maximum amount of a pollutant that a water body can receive and still safely meet water quality standards. For more information about impaired waters or TMDLs, please visit EPA's overview of impaired waters and Total Maximum Daily Loads Program webpage. For detailed information on the categorization of impaired waters, see Section V of the 2006 Integrated Report Guidance.

• 5. Impaired - TMDL needed. Available information indicates that at least one designated use is not being supported and a TMDL is needed (also known as the 303(d) listed waters).
• 4. Impaired - TMDL not needed. Available information indicates that at least one designated use is not being supported, but a TMDL is not needed (see subcategories).
• 4a. TMDL completed. A TMDL has been completed, but impairment still exists.
• 4b. TMDL alternative. Impairment is being addressed by a method other than a TMDL (e.g., stream bank improvements).
• 4c. Non-pollutant causes. Cause of impairment is not a pollutant (e.g., habitat destruction).

Note that locational data (latitude and longitude) are needed to index NPDES permits to the National Hydrography Dataset (NHD) Reach Address Database (RAD). For some facilities, locational data are not available, so whether the facilities directly discharge into impaired waters cannot be determined.

For information on the completeness of 305(b) and 303(d) impairment data by state, see the Office of Wetlands, Oceans, and Watersheds' NHD Reach Indexing Status by State page.

Causes of Impairment(s) by Group(s) (ATTAINS) (Water Only)

Search for NPDES permits by pollutant impairment groups as maintained in the ATTAINS database. The complete list and descriptions of impairment groups are provided in the National Causes of Impairment table. Hold down the CTRL key to select multiple impairment groups.

Discharging Pollutants Potentially Contributing to Impairment (Water Only)

Search for NPDES permits having limits or monitoring requirements for pollutants  with the potential to contributing to the impairment of local water bodies. EPA compiled a list of pollutants in ICIS-NPDES that may be associated with each ATTAINS impairment cause group. See the Impairment Group Parameter Crosswalk (CSV) (148 K) for the complete list of pollutants.

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Pollutant

TRI Reporting Period (All Data)

Search for facilities based on whether they reported to the Toxics Release Inventory (TRI) for the "current" or most recent reporting year or a prior reporting year.

TRI Reporting Period (Hazardous Waste)

Search for facilities based on whether they reported TRI Off-Site Chemical Transfers in the "current" or most recent reporting year or a prior reporting year.

TRI On-Site Chemical Release Amount (All Data Only)

Search for facilities by the amount of on-site chemical releases (pounds/year) they reported to the Toxics Release Inventory in the selected reporting year.

TRI On-Site Land Releases (Hazardous Waste Only)

Search for facilities by the year, pollutant, and amount (pounds/year) of on-site land releases they reported to the Toxics Release Inventory. Land releases include all the chemicals disposed on land within the boundaries of the reporting facility.

TRI Land Release Year (Hazardous Waste Only)

Search for facilities by the year they reported to the Toxics Release Inventory for on-site land releases (pounds/year).

TRI Land Release Pollutant (Hazardous Waste Only)

Search for facilities by a specific pollutant they reported to the Toxics Release Inventory for on-site land releases (pounds/year). Users can type in the name of the specific pollutant and then select from the drop-down menu.

TRI Land Release Amount (Hazardous Waste Only)

Search for facilities by the amount of on-site land releases (pounds/year) they reported to the Toxics Release Inventory in the selected reporting year.

TRI Off-Site Chemical Transfer Amount (All Data, Hazardous Waste)

Search for facilities by the amount of off-site chemical transfers (pounds/year) they reported to the Toxics Release Inventory in the selected reporting year.

TRI Direct Water Discharge Amount (Water Only)

Pounds/year of chemicals released directly to surface water as reported to the Toxics Release Inventory in the most recent reporting year.

TRI POTW Transfer Amount (Water Only)

Pounds/year of chemicals transferred to a Publicly Operated Treatment Works (POTW) as reported to the Toxics Release Inventory in the most recent reporting year.

Monitoring or Limit Data (Water Only)

The date range during which discharges are measured or monitored. To specify your date range, select “Within” and use the slider to select up to the past 5 years. Selecting a number of years requires the selection of either Pollutant Name, Pollutant Category, CAS Number, or Parameter Code. If one of these selections is made without selecting a number of years, "No Restrictions" will search on the past five years of monitoring or limit data.

Pollutant (Water Only)

The names used in ICIS-NPDES to identify the substance discharged. A pollutant name is provided for each DMR measurement in ICIS-NPDES. This selection cannot be combined with Pollutant Category, CAS Number, or Parameter Code.

Enter at least one character. Select a pollutant from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list.

Pollutant(s) Have Violations (Past 3 years) (Water Only)

Select the checkbox to limit your search to facilities discharging the selected pollutant(s) that have effluent exceedances (i.e., violation code E90) in the past three years.

Pollutant Category (Water Only)

Categories of different types of pollutants. This selection can not be combined with Pollutant Name, CAS Number, or Parameter Code.

Pollutant categories include:

• Conventional Pollutants - Pollutants typical of municipal sewage, and for which municipal secondary treatment plants are typically designed. Conventional pollutants are defined by Federal Regulation [40 CFR 401.16] as BOD, TSS, fecal coliform bacteria, oil and grease, and pH.
• Metals - All metals parameters. Hexavalent or trivalent metals and metals in ionic form (e.g., hexavalent chromium and aluminum, ion) are included, but metal compounds (e.g., calcium chloride) are not included.
• Nitrogen - All parameters for total nitrogen, organic nitrogen, total Kjeldahl nitrogen, nitrite, nitrate, and ammonia.
• Organic Enrichment - All parameters for biochemical oxygen demand (BOD) and chemical oxygen demand (COD).
• Pathogen Indicators - All parameters for total coliform, streptococci, and enteric.
• Phosphorus - All phosphorus and phosphate pollutant parameters. 
• Clean Water Act Priority Pollutants - The 126 pollutants that EPA currently defines as priority pollutants. 
• Solids - All parameters for suspended and settable solids. This category does not include chemical-specific solids, such as suspended copper.
• Temperature - All wastewater temperature parameters for measuring wastewater temperature in degrees Fahrenheit and Celsius.
• Wastewater Flow - All wastewater flow parameters for measuring wastewater flows in millions of gallons per day, gallons per day, and gallons per minute.
• Whole Effluent Toxicity - All parameters measuring Whole Effluent Toxicity (WET) in wastewater. WET refers to the aggregate toxic effect to aquatic organisms from all pollutants contained in a facility’s wastewater. 

CAS Number (Water Only)

A Chemical Abstract Service (CAS) number is a number assigned by the American Chemical Society that uniquely identifies a chemical.  Click the Add More button to add a value to the Selected Search Criteria panel and clear the input field for a new value, or separate multiple CAS Numbers by commas. This selection can not be combined with Pollutant Name, Pollutant Category, or Parameter Code.

Parameter (Water Only)

A five-character code and description in ICIS-NPDES that identifies the regulated pollutant parameter in a NPDES permit and specifies both the pollutant name and pollutant form (e.g., dissolved or suspended). Multiple parameters can apply to a single pollutant or CAS number. Enter at least one character to view parameter codes or names containing the character(s) in a dropdown list. Select a parameter code from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list. This selection can not be combined with Pollutant, Pollutant Category, or CAS Number. See the Technical Reference Documents page for a full list of pollutants. 

Has TRI ID (Air Only)

Search for facilities that have Toxics Release Inventory (TRI) IDs.

TRI Reporting Year (Air Only)

Search for facilities that reported TRI air emissions in a specific reporting year (last 10 reporting years). Hold down the CTRL key to select multiple years. If a year is not selected (i.e., "No restrictions"), the last 10 reporting years are searched on.

TRI Release Category (Air Only)

Search for facilities based on the category of air emissions reported to TRI:

• TRI Rel to Air (Total) - Total chemical releases to air
• TRI Carcinogen Rel to Air - Air releases of chemicals considered to be carcinogens. 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.
• TRI Hazardous Rel to Air - Air releases of TRI-listed chemicals considered to be hazardous air pollutant (HAPs)

A TRI Release Amount must also be selected to search on TRI Release Category. By default, a release amount of greater than 0 pounds (lb) will be added to the search criteria after selecting a TRI Release Category.

TRI Pollutant (Air Only)

Search for facilities reporting air emissions for a particular pollutant(s). Enter at least one character. Select a pollutant from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list.

For more information about pollutants reported under the TRI program, see TRI-Listed Chemicals.

A TRI Release Amount must also be selected to search on TRI Pollutant. By default, a release amount of greater than 0 pounds (lb) will be added to the search criteria after selecting a TRI Pollutant.

TRI Release Amount (Air Only)

Search for facilities that have reported air releases greater than or equal to a specific amount (in pounds). A TRI Release Category or TRI Pollutant must also be selected to search on release amount. To enter a custom amount, select "Enter a custom amount" from the dropdown. A Custom Amount box will appear. Enter a whole number into the Custom Amount box.

Has EIS ID (Air Only)

Search for facilities that have National Emission Inventory (NEI) IDs in the Emissions Inventory System (EIS). 

NEI Year (Air Only)

Search for facilities that reported to NEI in a specific reporting year. NEIs are released on a triennial basis (e.g., 2011, 2014, 2017). 

NEI Emission Category (Air Only)

Search for facilities that reported specific categories of air pollutants:

• NEI Total Hazardous Air Pollutants (HAPs)
• Carbon Monoxide (CO)
• Ammonia (NH₃)
• Nitrogen Oxides (NO_X)
• Sulfur Dioxide (SO₂)
• Volatile Organic Compounds (VOC)
• Particulate Matter (PM)
• Particulate matter 2.5 micrometers in diameter and smaller (PM 2.5)
• Particulate matter 10 micrometers in diameter and smaller (PM 10)

A NEI Emission Amount must also be selected to search on TRI Pollutant. By default, an emission amount of greater than 0 tons will be added to the search criteria after selecting a NEI Emission Category.

NEI Pollutant (Air Only)

Search for facilities reporting air emissions to NEI for a particular pollutant(s). Enter at least one character. Select a pollutant from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list.

A NEI Emission Amount must also be selected to search on TRI Pollutant. By default, an emission amount of greater than 0 tons will be added to the search criteria after selecting a NEI Pollutant.

NEI Emission Amount (Air Only)

Search for facilities that have reported air releases greater than or equal to a specific amount (in tons). An NEI Emission Category or NEI Pollutant must also be selected to search on emission amount. To enter a custom amount, select "Enter a custom amount" from the dropdown. A Custom Amount box will appear. Enter a whole number into the Custom Amount box.

Has GHGRP ID (Air Only)

Search for facilities that have Greenhouse Gas Reporting Program (GHGRP) IDs.

GHG Reporting Year (Air Only)

Search for facilities that reported to GHG in a specific reporting year. GHG reporting began in 2010.

GHG Emission Category (Air Only)

Search for facilities that reported specific categories of greenhouse gases:

• Carbon dioxide (CO₂)
• Methane (CH₄)
• Nitrous Oxide (N₂O)
• Sulfur Hexafluoride (SF₆)
• Nitrogen Trichloride (NF₃)
• Hydrofluorocarbons (HFCs)
• Perfluorocarbons (PFCs)
• Hydrofluoroethers (HFEs)

A GHG Emission Amount must also be selected to search on TRI Pollutant. By default, an emission amount of greater than 0 metric tons CO₂e will be added to the search criteria after selecting a GHG Emission Category.

GHG Emission Amount (Air Only)

Search for facilities that have reported air releases greater than or equal to a specific amount (in metric tons carbon dioxide equivalent (CO₂e)). A GHG Emission Category must first be selected to search on emission amount. To enter a custom amount, select "Enter a custom amount" from the dropdown. A Custom Amount box will appear. Enter a whole number into the Custom Amount box.

Has CAMDBS ID (Air Only)

Search for facilities that have Clean Air Markets Division Business System (CAMDBS) IDs.

Contaminant(s) in Violation (3 years) (Drinking Water Only)

Search by contaminant name(s) in violation of a SDWA regulation in the past three years. Enter at least one character. Select a contaminant from the dropdown list to add it to the search criteria selected panel and clear the input field for a new value. Multiple selections are allowed; however, users may only select one value at a time from the dropdown list. Checking "Contaminant(s) with Violation in Latest Quarter" will search by contaminant name(s) in violation of a SDWA regulation during the most recent quarter. This includes violations in the most recent official quarter, and new violations that have been reported since the end of the last official quarter.

Selecting the "Health-Based Violations" checkbox will restrict the search to systems with maximum contaminant level (MCL) violations, maximum residual disinfectant level (MRDL) violations, or Treatment Technique (TT) rule violations for the selected contaminant(s).

Action Level Exceedance (Past 5 Years) (Drinking Water Only)

Search for systems that have exceeded lead and/or copper action levels in the past five years. Action level exceedances are not violations, but trigger other requirements to limit exposure to lead and copper in drinking water. See more information on the Lead and Copper Rule.

Violations (Past 5 Years) (Drinking Water Only)

Search for systems in violation of the Lead and Copper Rule in the past five years. See more information on the Lead and Copper Rule.

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 Demographic Profile

EJ Indexes Above 80th Percentile (All Data, Air, Water, Hazardous Waste)

Identify facilities located in Census block groups in the 80th or higher national percentile of one or more of the primary environmental justice (EJ) indexes of EJSCREEN, EPA's screening tool for EJ concerns. Select the number of indexes in the 80th or higher national percentile using the slider. There are currently 11 environmental indexes in EJSCREEN. EPA uses EJSCREEN as a screening tool to identify geographic areas that may warrant further consideration or analysis. Note that use of this filter 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.

Percent Minority (3-mile radius) (All Data, Air, Water, Hazardous Waste)

Choose a percentage threshold to search for facilities based on the racial composition of the surrounding three-mile radius. 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.

Population Density (All Data, Air, Water, Hazardous Waste)

Identify facilities within high or low density areas according to the 2010 US Census data: No Restriction; >100; >500; >1,000; >3,000; >5,000; >10,000; or >20,000 persons/square mile. This field is the ratio of total persons to total land area (in square miles).