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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 - Aluminum forming (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
Lead 132  Original DMR load is 44,356 2.11 2.11
Cyanide 2,461 39.4 41.5
Aluminum 1,915  Original DMR load is 1,916 30.6 72.2
Fluoride 1,279 20.4 92.7
Polychlorinated biphenyls 241 3.85 96.5
Iron 53.05 0.85 97.4
Zinc 45.9 0.73 98.1
Copper 39.2 0.62 98.7
Total Residual Chlorine 38.9 0.62 99.4
Chromium 12.2 0.19 99.6

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
050302020803 Oldtown Creek-Ohio River 2,510  Original DMR load is 46,734
060300050802 Pond Creek 2,708  Original DMR load is 2,708
051100030204 Headwaters Mud River 241
060102010108 Pistol Creek 203
051301080908 Caney Fork River Outlet 169
010900030103 Quinsigamond River 75.4
070801010406 Sugar Creek-Mississippi River 74.3
041401021004 Wine Creek-Frontal Lake Ontario 52.7
051202010802 Sly Fork 48.7
051100030206 Austin Creek-Mud River 33.8

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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)
WV0115932 CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD LLC RAVENSWOOD, WV 3353 050302020803 Lead 0  Original DMR load is 44,224
WV0115932 CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD LLC RAVENSWOOD, WV 3353 050302020803 Cyanide 2,402
AL0000035 WISE ALLOYS LLC MUSCLE SHOALS, AL 3353 060300050802 Aluminum 1,454  Original DMR load is 1,455
AL0000035 WISE ALLOYS LLC MUSCLE SHOALS, AL 3353 060300050802 Fluoride 1,101
KY0102334 SENSUS PRECISION DIE CASTING RUSSELLVILLE, KY 3363 051100030204 Polychlorinated biphenyls 241
TN0067199 ALCOA INC.-NORTH PLANT ALCOA, TN 3353 060102010108 Aluminum 163
TN0002593 BON L MANUFACTURING CO GORDONSVILLE, TN 3354 051301080908 Fluoride 102
AL0000035 WISE ALLOYS LLC MUSCLE SHOALS, AL 3353 060300050802 Lead 87.08
IA0003395 ALCOA INC BETTENDORF, IA 3353 070801010406 Aluminum 69.8
TN0002593 BON L MANUFACTURING CO GORDONSVILLE, TN 3354 051301080908 Aluminum 66.5

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