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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 - Inorganic chemicals manufacturing (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
Hexachlorobenzene 79,731 39.5 39.5
Chloride 55,985 27.7 67.2
Total Residual Chlorine 24,998 12.3 79.6
Aluminum 9,213 4.56 84.1
Fluoride 6,846 3.39 87.5
Sulfide 5,506 2.72 90.3
Manganese 4,954 2.45 92.7
Iron 1,764 0.87 93.6
Copper 1,292 0.64 94.2
Ammonia as N 1,267 0.62 94.9

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Top Receiving Watersheds (2017)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
080701000104 Manchac Point 61,095
050500080303 Tyler Creek-Kanawha River 40,443
041201010606 Town of North Kingsville-Frontal Lake Erie 24,230
080702020801 Bayou Braud 23,197
060400050404 Tennessee River-Beaverdam Creek 12,228
080703000204 Alligator Bayou-Choctaw Bayou 4,179
031602040305 Lower Chasaw Creek 3,914
080801030600 Vermilion Bay 2,075
031002040103 English Creek 2,001
040400010603 Calumet River-Frontal Lake Michigan 1,957

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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)
LA0000329 HONEYWELL INTERNATIONAL BATON ROUGE PLANT BATON ROUGE, LA 2819 080701000104 Hexachlorobenzene 60,353
WV0073679 CLEARON CORP. SOUTH CHARLESTON, WV 2819 050500080303 Chloride 40,331
OH0000523 MILLENNIUM INORGANIC CHEMICALS, INC ASHTABULA, OH 2816 041201010606 Total Residual Chlorine 21,626
LA0006181 HONEYWELL INTERNATIONAL INC., GEISMAR PLANT GEISMAR, LA 2819 080702020801 Hexachlorobenzene 19,378
TN0001465 CHEMOURS JOHNSONVILLE PLANT NEW JOHNSONVILLE, TN 2816 060400050404 Chloride 11,896
GA0000281 CHEMICAL PRODUCTS CORP CARTERSVILLE, GA 2819 031501041301 Sulfide 5,086
MS0002232 HAMILTON FACILITY HAMILTON, MS 2816 031601011403 Manganese 4,334
LA0122921 PORT ALLEN PLANT PORT ALLEN, LA 2819 080703000204 Aluminum 4,003
AL0002666 HONEYWELL - UOP LLC CHICKASAW, AL 2819 031602040305 Aluminum 3,285
OH0000523 MILLENNIUM INORGANIC CHEMICALS, INC ASHTABULA, OH 2816 041201010606 Fluoride 2,215

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