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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 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 - Organic chemicals, plastics and synthetic fibers (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
Total Residual Chlorine 62,881  Original DMR load is 171,906 11.4 11.4
Mercury 103,808 18.9 30.4
Hexachlorobenzene 91,019 16.6 47.1
Cyanide 64,518 11.7 58.9
Heptachlor epoxide 39,914 7.29 66.2
Fluoride 33,535 6.13 72.3
Tin 20,664 3.77 76.1
Aroclor 1242 20,203 3.69 79.8
Chloride 13,510 2.47 82.2

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
050500080303 Tyler Creek-Kanawha River 22,683  Original DMR load is 168,828
040900040503 Huntington Creek-Frontal Lake Erie 102,464
020402060103 Salem Canal-Whooping John Creek 69,982
020200060305 Papscanee Creek-Hudson River 54,148
080802060302 Bayou Verdine-Calcasieu River 42,772
030202020307 Mosley Creek-Neuse River 22,442
050902031010 McCools Creek-Ohio River 21,505
120401040703 Vince Bayou-Buffalo Bayou 17,091  Original DMR load is 17,096
080702040302 Hope Canal-Pipeline Canal 14,389
010900040102 Matfield River 13,965

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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)
WV0000086 INSTITUTE PLANT INSTITUTE, WV 2869 050500080303 Polychlorinated biphenyls 0  Original DMR load is 146,145
TX0006017 OXEA BAY CITY PLANT BAY CITY, TX 2869 120903020207 Total Residual Chlorine  Original DMR load is 109,025
MI0000540 BASF CORP WYANDOTTE, MI 2869 040900040503 Mercury 102,464
NY0260738 PORT ALBANY VENTURES ALBANY, NY 5169 020200060305 Cyanide 54,015
LA0003336 SASOL CHEMICALS (USA), LLC WESTLAKE, LA 2869 080802060302 Hexachlorobenzene 39,889
NJ0005100 E I DUPONT DE NEMOURS - CHAMBERS WORKS DEEPWATER, NJ 2869 020402060103 Heptachlor epoxide 30,038
KY0001431 PMC ORGANOMETALLIX INC. CARROLLTON, KY 2869 050902031010 Tin 20,502
AL0001201 SOLUTIA INC ANNISTON PLANT ANNISTON, AL 2869 031501060505 Aroclor 1242 20,203
NC0003760 KINSTON PLANT GRIFTON, NC 2824 030202020307 Hexachlorobenzene 18,838
NJ0005100 E I DUPONT DE NEMOURS - CHAMBERS WORKS DEEPWATER, NJ 2869 020402060103 Fluoride 16,595

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