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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 forming and metal powders (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 897 43.3 43.3
Silver 450 21.7 65.1
Copper 416 20.1 85.2
Iron 104 5.0308 90.2
Aluminum 87.5 4.23 94.5
Vinyl chloride 54.1 2.62 97.1
Zinc 30.002 1.45 98.5
Nickel 16.9 0.81 99.4
Fluoride 3.041 0.14 99.5
Ammonia as NH3 2.29 0.11 99.6

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
080204020107 Steel Bridge Church-Bayou Meto 1,059
010900040301 Wading River 704
041300030605 Mill Creek-Black Creek 98.7
010900030103 Quinsigamond River 75.7
050100070310 Lower Stonycreek River-Conemaugh River 57.1
051201030511 Boots Creek-Mississinewa River 48.7
050701020403 Davis Creek-Guyandotte River 8.37
080302010404 Jasper Creek 6.41
120401040201 Langham Creek 6.409
040500010106 East Branch Sauk River 1.68

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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)
AR0001163 REMINGTON ARMS LONOKE, AR 3482 080204020107 Lead 805
MA0001791 TEXAS INSTRUMENTS, INC. ATTLEBORO, MA 3356 010900040301 Silver 450
AR0001163 REMINGTON ARMS LONOKE, AR 3482 080204020107 Copper 238
MA0001791 TEXAS INSTRUMENTS, INC. ATTLEBORO, MA 3356 010900040301 Copper 96.8
NY0098817 UNION SCRAP PROCESSING INC NORTH CHILI, NY 3399 041300030605 Iron 90.3
MA0001791 TEXAS INSTRUMENTS, INC. ATTLEBORO, MA 3356 010900040301 Vinyl chloride 54.1
MA0004341 WYMAN GORDON PLANT NORTH GRAFTON, MA 3463 010900030103 Aluminum 44.1
MA0001791 TEXAS INSTRUMENTS, INC. ATTLEBORO, MA 3356 010900040301 Lead 43.4

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