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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 - 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, total recoverable 43.9  Original DMR load is 59,010 1.12 1.12
Cyanide, weak acid, dissociable 3,202 82.03 83.1
Aluminum, total (as Al) 311 7.97 91.1
Fluoride, total (as F) 81.7 2.094 93.2
Aluminum, total recoverable 48.3 1.23 94.4
Chlorine, total residual 38.7 0.99 95.4
Copper, total (as Cu) 35.7 0.91 96.3
Iron, total (as Fe) 29.08 0.74 97.1
Cyanide, total (as CN) 28.2 0.72 97.8
Iron, total recoverable 23.9 0.61 98.4

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
050302020803 Oldtown Creek-Ohio River 3,321  Original DMR load is 62,286
060102010110 Little River-Roddy Branch 203
010900030103 Quinsigamond River 75.7
070801010302 Lower Duck Creek 74.3
041401021004 Wine Creek-Frontal Lake Ontario 59.7
120401040201 Langham Creek 6.409

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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 58,966
WV0115932 CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD LLC RAVENSWOOD, WV 3353 050302020803 Cyanide 3,202
TN0067199 ALCOA INC.-NORTH PLANT ALCOA, TN 3353 060102010110 Aluminum 163
IA0003395 ALCOA INC BETTENDORF, IA 3353 070801010302 Aluminum 69.8
NY0072451 KEYMARK CORP FONDA, NY 3354 020200041005 Fluoride 59.6
WV0115932 CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD LLC RAVENSWOOD, WV 3353 050302020803 Aluminum 53.6
MA0004341 WYMAN GORDON PLANT NORTH GRAFTON, MA 3463 010900030103 Aluminum 44.1
IN0002372 BICC GENERAL CABLE INDUSTRIES INCORPORATED MARION, IN 3357 051201030511 Lead 43.9
NY0002143 NOVELIS CORP OSWEGO, NY 3353 041401021004 Total Residual Chlorine 36.8
WV0115932 CONSTELLIUM ROLLED PRODUCTS RAVENSWOOD LLC RAVENSWOOD, WV 3353 050302020803 Iron 25.5

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