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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 - Mineral mining and processing (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
Aluminum 41,514 34.5 34.5
Fluoride 34,344 28.5 63.1
Manganese 14,454 12.02 75.1
Chloride 13,418 11.1 86.3
Sulfate 5,257 4.37 90.6
Selenium 3,934 3.27 93.9
Lead 2,300 1.91 95.8
Iron 759 0.63 96.5
Arsenic 563 0.46 96.9
Total Residual Chlorine 514 0.42 97.4

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Top Receiving Watersheds (2017)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
031001010801 Horse Creek Headwaters 9,065
020700040503 Warm Spring Run 5,211
101800100406 Harney Creek 4,305
031001010405 Thompson Branch 3,492
080801030305 Deblane Coulee-Bayou Petite Anse 2,519
031002040204 Hurrah Creek 2,206
071300010201 Illinois Canyon-Illinois River 1,613
060101080104 Grassy Creek-North Toe River 1,288
031001010403 Lower Payne Creek 1,245
040900050407 Huron River 1,235

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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)
AL0077992 JENKINS BRICK COMPANY LEEDS, AL 1459 031501060805 Aluminum 41,215
AL0082988 PRINCE MINERALS, LLC LEESBURG, AL 3295 031501051002 Manganese 13,658
FL0000655 WSA, INC., DBA PCS PHOSPHATE - WHITE SPRINGS WHITE SPRINGS, FL 1479 031102010901 Fluoride 9,799
FL0027600 MOSAIC FERTILIZER LLC - NEW WALES PLANT MULBERRY, FL 1475 031001010801 Fluoride 9,065
TX0112038 CEDAR LAKE PLANT SEAGRAVES, TX 1474 120800040603 Chloride 7,971
WY0035360 RED BUTTES GYPSUM QUARRY UNKNOWN, WY 3275 101800100406 Sulfate 4,241
FL0037958 MOSAIC FERTILIZER - SOUTH FORT MEADE MINE FORT MEADE, FL 1475 031001010405 Fluoride 3,437
WV0117072 U.S. SILICA COMPANY - BERKELEY SPRINGS PLANT BERKELEY SPRINGS, WV 1446 020700040503 Fluoride 2,711
LA0000264 CARGILL INCORPORATED SALT DIVISION - AVERY ISLAND MINE AVERY ISLAND, LA 1479 080801030305 Chloride 2,519
FL0033332 MOSAIC FERTILIZER LLC LITHIA, FL 1475 031002040204 Fluoride 2,193

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