Pollutant Loading Report Help - TRI

The TRI Pollutant Loading Report presents detailed information about TRI water releases for a facility reporting to TRI and related information.

The page is organized into the following sections. Descriptions of the data elements presented on the page, as well as their data sources, are provided below:

 Summary Information

Facility name and address are displayed at the top of the facility summary section.

Facility Information

TRI Facility ID: 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.

FRS ID: Facility Registry Service (FRS) identification number. 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).

Other TRI IDs associated with this FRS ID: Other TRI ID linked to the primary TRI ID within FRS. Select a TRI ID to view the corresponding TRI Facility Information page.

NPDES ID(s): NPDES ID(s) linked to the TRI Facility ID. A NPDES ID is a unique 9-character ID assigned for each permit within the National Pollutant Discharge Elimination System (NPDES) program. 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. Select a NPDES ID to view the corresponding DMR Facility Information page.

County: The county name for the facility location.

Latitude: Displays the latitude of the facility or permit holder, as maintained in TRI.

Longitude: Displays the longitude of the facility or permit holder, as maintained in TRI.

4-Digit SIC Code: The primary Standard Industrial Classification (SIC) code in TRI. 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. For more information, see the SIC Lookup.

6-Digit NAICS Code: The facility's primary North American Industry Classification System (NAICS) code and description. NAICS 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. For more information, see the NAICS Lookup.

Likely Point Source Category: A three-digit code that corresponds to an Effluent Limitations Guideline's 40 CFR. For example, Point Source Category (PSC) code 414 corresponds to Organic, Chemicals, Plastics, and Synthetic Fibers (40 CFR Part 414). EPA derives the likely PSC based on the reported NAICS code and best professional judgement.

Links to More Facility Information

View Detailed Facility Report: The ECHO Detailed Facility Report presents a concise enforcement and compliance history for a selected facility.

View Multi-Year Loading Report: Discharges from TRI and DMR are displayed for the FRS ID over the last five years. Drill down on chemical groups to view more detail about reported discharges.

 Facility Releases

These tables display (up to) the top ten largest chemical releases reported in a given year. Use the Download All Data buttons to view the complete list of chemical releases.

Reporting Year: The calendar year in which the chemical releases occurred. This is not the year in which the facility reported to TRI.

Top Chemicals by Pounds

Chemical Name: Pollutant name(s), these are specifically associated with chemicals that are reported to EPA's TRI Program.

Direct TRI (lb/yr): The amount of TRI chemical(s), in pounds per year, released directly to surface water bodies.

Indirect TRI (lb/yr): The amount of TRI chemical(s) released to sewage treatment plants. For indirect releases, EPA adjusts the reported facility release to account for removals at the POTW. POTWs can treat and remove some or all of the chemicals from TRI indirect releases before releasing the treated wastewater to the environment. EPA estimates chemical removal rates based on a percent removal and subtracts the percent removed from the reported indirect release. The POTW chemical removal spreadsheet is available in Technical Reference Documentation.

Top Chemicals by Toxic-Weighted Pounds (TWPE)

Chemical Name: Pollutant name(s), these are specifically associated with chemicals that are reported to EPA's TRI Program.

Direct TRI (lb-eq/yr): The amount of TRI chemical(s) in TWPE released directly to surface water bodies.

Indirect TRI (lb-eq/yr): The amount of TRI chemical(s) released to sewage treatment plants.

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 Receiving Water Information

Receiving water body information is not currently captured in TRI. EPA displays receiving water information for facilities reporting to TRI using linkages to NPDES program information. For TRI IDs that do not link to a NPDES ID, EPA uses receiving water body data in the Risk-Screening Environmental Indicators (RSEI) Model to populate the reach code.

Water Body Name (from GNIS): The name of the water body from the Geographic Names Information System (GNIS) database in which the facility is permitted to discharge directly. A water body 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.

Water Body Number (REACH Code): A unique code assigned to each segment of a stream contained within the U.S. Geological Survey (USGS) hydrography. This 14-digit code has two parts: the first 8 digits are the hydrologic unit code for the subbasin in which the reach exists; the last 6 digits are assigned in sequential order, and arbitrarily among the reaches. The Loading Tool obtains this data element using a Watershed Assessment Tracking and Environmental ResultS (WATERS) web service (OWRAD/PCS_WMERC) which obtains REACH codes from EPA's REACH Address Database (RAD).

Watershed Name and Number (12-Digit HUC): Name and corresponding 12-digit Hydrologic Unit Code (HUC), assigned by the U.S. Geological Survey, used to classify watersheds in the United States and the Caribbean. 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)

Listed for Impairment: Displays "Yes" if the water body in which the facility is located is listed for impairment.

Under section 303(d) of the CWA, states, territories, and authorized tribes are required to develop lists of impaired waters. These are waters that are too polluted or otherwise degraded to meet the water quality standards set by states, territories, or authorized tribes. 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 TMDLs Program.

Impairment Class: The impairment class or category of the water body in which the facility is permitted to discharge directly.

  • 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).

Detailed information on the categorization of waters can be found in Section V of the 2006 Integrated Report Guidance.

Cause(s) of Impairment: Lists all pollutants or stressors that are causing impairment in the assessed water body. While most of the cause names (such as nutrients or metals) are standard and widely used by all states, others may be unique to a given state. See the state 305(b) report for more information. The data are from the ATTAINS database.

Discharges to a county or watershed with ESA-listed aquatic species: Displays "Yes" if the facility is located within a county or watershed with ESA-listed aquatic species. ESA-listed aquatic species are a group of organisms that live in the water for most or all of its life and are designated as threatened or endangered under the Endangered Species Act (ESA). The purpose of the ESA is to protect and recover imperiled species and the ecosystems upon which they depend. It is administered by the U.S. Fish and Wildlife Service and the National Marine Fisheries Service (NMFS).

 Transfers to Publicly Owned Treatment Works (POTWS)

This section provides a linkage between reported indirect releases (transfers of wastewater to Publicly-Owned Treatment Works (POTWs)) in the Toxics Release Inventory (TRI) to receiving POTWs and discharge data reported on Discharge Monitoring Reports (DMRs) under the Clean Water Act (CWA) National Pollutant Discharge Elimination System (NPDES) permit program in a given reporting year. Basic POTW information is provided, along with a link to the POTW's Facility Information page.

To view a list of reported industrial pollution received by the POTW, select the POTW Indirect Discharger Report (CSV). Note that it may include pollution received from additional TRI facilities. Data elements in the POTW Indirect Discharger Report are described in the Indirect Industrial Discharger Report Data Dictionary.

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A geographic display of the facility location, indicated by a red map icon. The map icon reflects location information in the Facility Registry Service (FRS) database. Only those facilities with available geographical data are mapped. Use the zoom-in and zoom-out controls to manipulate the map.

 Wastewater Treatment Technology Information

Information comes from EPA's Toxics Release Inventory (TRI). More waste management and pollution prevention (P2) information is available through TRI's P2 Search Tool. Select the link on the P2 Report to view the facility's P2 report in Envirofacts.

Current Treatment in Place: Wastewater treatment technologies in place at the facility derived from TRI P2 information.