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Discharge Monitoring Report (DMR) Pollutant Loading Tool

The Loading Tool is being transitioned into ECHO to increase user access to data and streamline site maintenance. The beta version is now available for testing. EPA plans to retire this site in late November 2017. Current site functionality will be available in ECHO.

Note: This area of the DMR Loading Tool includes data used for EPA's annual review of industrial effluent discharges. EPA's Office of Water is responsible for developing programs and tools authorized under the Clean Water Act (CWA), which enables EPA and the states to protect and restore the Nation's waters. The CWA requires EPA to annually review and, if appropriate, revise its water pollution control technology-based regulations, called "effluent limitations guidelines" or "effluent guidelines" that limit the discharge of pollutants to waters of the U.S. from industrial facilities. As part of the EPA's annual reviews, EPA estimates the load of pollutants discharged using a combination of discharge monitoring report (DMR) data, from ICIS-NPDES, and Toxics Release Inventory (TRI) data. EPA also assigns a relative toxic weight to the estimated loads to rank industrial categories by toxic weighted pound equivalents (TWPE). For more background on EPA's effluent guidelines program see EPA's Effluent Guidelines website.

EPA reviews the DMR and TRI data used to calculate effluent loads and TWPE for accuracy prior to further investigating industrial categories for possible effluent guideline revisions. For identified outlier data, EPA contacts states and facilities to confirm and update (if appropriate) data values and units. For information on the methodology and types of changes identified, see EPA's most recent odd-numbered year Annual Effluent Guidelines Review Report on the Effluent Guidelines Plan webpage. Because of this review and EPA's methodology for interpreting data and calculating loads, the calculated loads and category rankings may differ from original calculations using DMR and TRI data that have not been updated. Data that have been updated by EPA's annual reviews are indicated by green flags designating that a change has been made to a concentration, quantity, or flow value. A listing of the DMR and TRI data changes from the most recent annual review is available in the Annual Effluent Guidelines Review Report Appendices.

Point Source Category Information - Petroleum refining (DMR)

EPA 304M Annual Review flag — Indicates load was altered by EPA’s 304M Annual Review. You can hover over the green flag to see the original load from the DMR data.

Top Pollutants - Toxic-Weighted Pounds (TWPE) (2017)
Pollutant Name Total DMR TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
Sulfide 92,215 33.8 33.8
Total Residual Chlorine 49,997 18.3 52.2
Aluminum 35,160 12.9 65.1
Chloride 29,585 10.8 76.06
Selenium 22,221 8.16 84.2
Arsenic 9,859 3.62 87.8
Fluoride 5,580 2.051 89.9
Zinc 3,556 1.306 91.2
Hexachlorobenzene 3,235 1.18 92.4
Lead 2,896 1.064 93.4

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Top Receiving Watersheds (2017)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
020402050703 Red Lion Creek-Delaware River 45,737
020402020607 Repaupo Creek-Delaware River 38,104
080903010506 Bayou Palourde-Frontal Gulf of Mexico 29,788
120402040200 Dickinson Bayou 13,494
121102020107 Tule Lake 7,742
080702040303 Dutch Bayou-Mississippi Bayou 7,246
040400010603 Calumet River-Frontal Lake Michigan 6,550
020402031008 City of Philadelphia-Schuylkill River 6,275
180701040500 Manhattan Beach-Frontal Santa Monica Bay 6,146
120401040706 Goose Creek-Frontal Galveston Bay 5,917

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2017)
NPDES ID Facility Name City, State SIC Code HUC-12 Code Top Pollutant Top Pollutant TWPE (lb-eq/yr)
DE0000256 DELAWARE CITY REFINERY DELAWARE CITY, DE 2911 020402050703 Total Residual Chlorine 45,737
PA0012637 MONROE ENERGY TRAINER REFINERY TRAINER, PA 2911 020402020607 Aluminum 32,086
TX0003522 BP PRODUCTS NA (TEXAS CITY REFINERY) TEXAS CITY, TX 2911 120402040200 Sulfide 11,413
LA0045683 GARYVILLE REFINERY GARYVILLE, LA 2911 080702040303 Sulfide 7,194
TX0009148 BORGER REFINERY BORGER, TX 2911 110901060204 Sulfide 4,764
CA0000337 CHEVRON EL SEGUNDO REFINERY EL SEGUNDO, CA 2911 180701040500 Selenium 4,503
MT0000477 EXXONMOBIL - BILLINGS REFINERY BILLINGS, MT 2911 100700070403 Arsenic 4,142
LA0005584 VWNA PROCESS SOLUTIONS/TEXAS LLC BATON ROUGE, LA 2911 080701000104 Sulfide 4,141

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