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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 69,003 63.009 63.009
Manganese 12,091 11.04 74.04
Fluoride 11,608 10.5 84.6
Chloride 10,376 9.47 94.1
Selenium 1,851 1.69 95.8
Sulfate 768 0.701 96.5
Mercury 471 0.43 96.9
Total Residual Chlorine 471 0.42 97.3
Sulfide 467 0.42 97.8
Arsenic 379 0.34 98.1

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Top Receiving Watersheds (2017)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
080801030305 Deblane Coulee-Bayou Petite Anse 2,263
031001010801 Horse Creek Headwaters 1,347
071300010201 Illinois Canyon-Illinois River 1,328
040900050407 Huron River 1,268
110200021202 City of Fearnowville-Arkansas River 1,067
060101080104 Grassy Creek-North Toe River 953
060101080103 Threemile Creek-North Toe River 869
041100040607 Red Creek-Grand River 722
071401050306 Rockwood Island-Mississippi River 446
060101080604 Hollow Poplar Creek-Nolichucky River 442

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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 68,691
AL0082988 PRINCE MINERALS, LLC LEESBURG, AL 3295 031501051002 Manganese 11,382
TX0112038 CEDAR LAKE PLANT SEAGRAVES, TX 1474 120800040603 Chloride 6,643
FL0000655 WHITE SPRINGS AGRICULTURAL CHEMICALS,INC WHITE SPRINGS, FL 1479 031102010901 Fluoride 5,851
LA0000264 AVERY ISLAND MINE AVERY ISLAND, LA 1479 080801030305 Chloride 2,263
FL0027600 MOSAIC FERTILIZER LLC - NEW WALES PLANT MULBERRY, FL 1475 031001010801 Fluoride 1,347
FL0033294 MOSAIC FERTILIZER - HOOKERS PRAIRIE MINE FACILITY BRADLEY, FL 1475 031002080503 Fluoride 1,057
COG500082 PUEBLO EAST PIT PUEBLO, CO 1442 110200021202 Selenium 993
NC0000353 FELDSPAR SPRUCE PINE, NC 1459 060101080104 Fluoride 951
NC0000361 UNIMIN CORPORATION SCHOOLHOUSE QUARTZ SPRUCE PINE, NC 1455 060101080103 Fluoride 869

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