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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 75,784 34.1 34.1
Total Residual Chlorine 39,077 17.5 51.7
Chloride 33,801 15.2 66.9
Selenium 19,421 8.74 75.6
Aluminum 19,404 8.73 84.4
Arsenic 7,924 3.56 88.003
Fluoride 5,004 2.25 90.2
Zinc 3,476 1.56 91.8
Hexachlorobenzene 2,818 1.26 93.09
Lead 2,380 1.071 94.1

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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 35,652
080903010506 Bayou Palourde-Frontal Gulf of Mexico 33,837
020402020607 Repaupo Creek-Delaware River 21,545
120402040200 Dickinson Bayou 11,332
080702040303 Dutch Bayou-Mississippi Bayou 6,145
121102020107 Tule Lake 5,723
040400010603 Calumet River-Frontal Lake Michigan 4,995
020402031008 City of Philadelphia-Schuylkill River 4,927
100700070403 Yellowstone River-Sevenmile Creek 4,769
180701040500 Manhattan Beach-Frontal Santa Monica Bay 4,749

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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 35,652
LA0049492 LOOP LLC- DEEPWATER PORT COMPLEX GALLIANO, LA 4612 080903010506 Chloride 32,955
PA0012637 MONROE ENERGY LLC/TRAINER TRAINER, PA 2911 020402020607 Aluminum 16,488
TX0003522 BP PRODUCTS NA (TEXAS CITY REFINERY) TEXAS CITY, TX 2911 120402040200 Sulfide 9,548
LA0045683 MARATHON PETROLEUM COMPANY LP GARYVILLE, LA 2911 080702040303 Sulfide 6,107
MN0000418 FLINT HILLS RESOURCES PINE BEND REFINERY ROSEMOUNT, MN 2911 070102060903 Selenium 4,253
TX0009148 BORGER REFINERY BORGER, TX 2911 110901060204 Sulfide 4,142
MS0001481 CHEVRON PRODUCTS CO PASCAGOULA REFINERY PASCAGOULA, MS 2911 031700090301 Sulfide 3,995
LA0005584 EXXONMOBIL BATON ROUGE REFINERY BATON ROUGE, LA 2911 080701000104 Sulfide 3,451
MT0000477 EXXONMOBIL - BILLINGS REFINERY BILLINGS, MT 2911 100700070403 Arsenic 3,446

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