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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 (PDF) (169 pp, 2MB) 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 (PDF) (241 pp, 3.3MB).

Point Source Category Information - Nonferrous metals manufacturing (TRI)

EPA 304M Annual Review icon — Indicates load was altered by EPA’s 304M Annual Review. You can hover over the green flag to see the original load from the TRI data.

Top Chemicals - Toxic-Weighted Pounds (TWPE) (2011)
Chemical Name Direct TRI TWPE (lb-eq/yr) Indirect TRI TWPE (lb-eq/yr) Total TRI TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
CADMIUM AND CADMIUM COMPOUNDS 11,706 781 12,486 40.3 40.3
LEAD AND LEAD COMPOUNDS 5,988 163 6,151 19.8 60.2
VANADIUM AND VANADIUM COMPOUNDS 4,833 0 4,833 15.6 75.9
COPPER AND COPPER COMPOUNDS 3,143 26.8 3,170 10.2 86.1
ARSENIC AND ARSENIC COMPOUNDS 1,903 453 2,356 7.62 93.7
ZINC AND ZINC COMPOUNDS 972 1.63 974 3.14 96.9
NITRATE COMPOUNDS 0 246 246 0.79 97.7
MANGANESE AND MANGANESE COMPOUNDS 188 22.7 211 0.68 98.4
SILVER AND SILVER COMPOUNDS 98.82 95.8 195 0.62 99.04
DIOXIN AND DIOXIN-LIKE COMPOUNDS 137 0 137 0.44 99.4

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Direct TRI TWPE (lb-eq/yr) Indirect TRI TWPE (lb-eq/yr) Total TRI TWPE (lb-eq/yr)
051302050308 Cummings Creek-Cumberland River 11,958 0 11,958
020503061704 Cabin Creek-Susquehanna River 5,466 0 5,466
071401020402 Crooked Creek-Huzzah Creek 1,176 0 1,176
020401060804 Fireline Creek-Lehigh River 1,059 11.2 1,070
020402030604 Laurel Run-Schuylkill River 580 0.027 580
031002060301 Palm River 0 288 288
050301010308 Big Sewickley Creek 179 0 179
060400030302 Sugar Creek 150 0 150
060102010108 Pistol Creek 136 10.2 146
020503020202 Mill Run-Beaverdam Branch 139 0 139

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2011)
TRI Facility ID Facility Name City, State NAICS Code HUC-12 Code Top Chemical Top Chemical Direct TRI TWPE (lb-eq/yr) Top Chemical Indirect TRI TWPE (lb-eq/yr) Top Chemical Total TRI TWPE (lb-eq/yr)
37040SVGZN1800Z NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 212231 051302050308 CADMIUM AND CADMIUM COMPOUNDS 10,169 0 10,169
77541GLFCH302MI GULF CHEMICAL & METALLURGICAL CORP FREEPORT, TX 331492 VANADIUM AND VANADIUM COMPOUNDS 4,833 0 4,833
17512CLNLM2NDLI COLONIAL METALS CO COLUMBIA, PA 331492 020503061704 LEAD AND LEAD COMPOUNDS 3,002 0 3,002
17512CLNLM2NDLI COLONIAL METALS CO COLUMBIA, PA 331492 020503061704 COPPER AND COPPER COMPOUNDS 2,270 0 2,270
37040SVGZN1800Z NYRSTAR CLARKSVILLE INC CLARKSVILLE, TN 212231 051302050308 LEAD AND LEAD COMPOUNDS 1,095 0 1,095
77541GLFCH302MI GULF CHEMICAL & METALLURGICAL CORP FREEPORT, TX 331492 ARSENIC AND ARSENIC COMPOUNDS 881 0 881
90058GNBNC2717S EXIDE TECHNOLOGIES LOS ANGELES, CA 331492 CADMIUM AND CADMIUM COMPOUNDS 0 757 757
65440BCKSMHIGHW BUICK RESOURCE RECYCLING FACILITY LLC BOSS, MO 331492 071401020402 ARSENIC AND ARSENIC COMPOUNDS 701 0 701
18071HRSHDDELAW HORSEHEAD CORP/EAST PLT PALMERTON, PA 331492 020401060804 CADMIUM AND CADMIUM COMPOUNDS 661 9.12 670
36081SNDRSHENDE SANDERS LEAD CO INC TROY, AL 331492 031403010205 CADMIUM AND CADMIUM COMPOUNDS 625 14.82 640

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