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Discharge Monitoring Report (DMR) Pollutant Loading Tool

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 more information on the types of errors identified, see EPA's Technical Support Document for the 2010 Effluent Guidelines Program (PDF) (255 pp, 3.4MB). Because of this review, and EPA's methodology for interpreting data and calculating loads (explained in EPA's Technical Support Document for the Annual Review of Existing Effluent Guidelines and Identification of Potential New Point Source Categories), the calculated loads and category rankings may differ using DMR and TRI data that has not been updated. Data that have been updated by EPA's annual reviews are flagged by green flags designating that a change has been made to a concentration, quantity, or flow value. View a listing of the changes for the most recent annual review (PDF) (1 pg, 7K).

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) (2011)
Pollutant Name Total DMR TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
Sulfide, total 7,574 24.1 24.1
Chloride (as Cl) 6,456 20.5 44.7
Nickel, total (as Ni) 3,250 10.3 55.1
Fluoride, total (as F) 3,077 9.81 64.9
Phosphorus (reactive as P) 2,654 8.46 73.3

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
080701000104 Manchac Point 1,344  Original DMR load is 107,564
060400050404 Tennessee River-Beaverdam Creek 8,094
041402011509 Onondaga Lake 2,973
080802060303 Calcasieu River-Prien Lake 2,152
080702020801 Bayou Braud 1,116
050301011104 Tomlinson Run 916
051402060701 Bayou Creek-Ohio River 839
050500080303 Tyler Creek-Kanawha River 799
020402050703 Red Lion Creek-Delaware River 700
071200040905 Des Plaines River 515

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2011)
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 0  Original DMR load is 98,948
GA0000281 CHEMICAL PRODUCTS TECHNOLOGIES CARTERSVILLE, GA 2819 031501041301 Sulfide 7,574
TN0001465 DUPONT JOHNSONVILLE PLANT NEW JOHNSONVILLE, TN 2816 060400050404 Chloride 5,045
TN0001465 DUPONT JOHNSONVILLE PLANT NEW JOHNSONVILLE, TN 2816 060400050404 Nickel 3,040
NY0002275 HONEYWELL INTERNATIONAL INC SOLVAY, NY 2812 041402011509 Phosphorus 2,654
LA0000329 HONEYWELL INTERNATIONAL BATON ROUGE PLANT BATON ROUGE, LA 2819 080701000104 Benzo[a]pyrene 0  Original DMR load is 2,390
LA0000329 HONEYWELL INTERNATIONAL BATON ROUGE PLANT BATON ROUGE, LA 2819 080701000104 Chrysene 0  Original DMR load is 1,303
LA0000329 HONEYWELL INTERNATIONAL BATON ROUGE PLANT BATON ROUGE, LA 2819 080701000104 Benzo[k]fluoranthene 0  Original DMR load is 1,289
LA0000329 HONEYWELL INTERNATIONAL BATON ROUGE PLANT BATON ROUGE, LA 2819 080701000104 Benz[a]anthracene 0  Original DMR load is 1,233
LA0000329 HONEYWELL INTERNATIONAL BATON ROUGE PLANT BATON ROUGE, LA 2819 080701000104 Benzo(b)fluoranthene 0  Original DMR load is 1,008

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