Jump to main content or area navigation.

Contact Us

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 - Meat and Poultry Products (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
Chlorine, total residual 7,052 53.3 53.3
Nitrogen, nitrate total (as N) 2,706 20.4 73.7
Nitrogen, ammonia total (as N) 1,528 11.5 85.3
Chloride (as Cl) 796 6.013 91.3
Aluminum, total (as Al) 442 3.34 94.6
Arsenic, total (as As) 431 3.25 97.9
Copper, total (as Cu) 115 0.86 98.7
Copper, total recoverable 54.9 0.41 99.2
Sulfate, total (as SO4) 31.8 0.24 99.4
Zinc, total recoverable 17.8 0.13 99.5

Download All Data

Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
102001020404 Eagles Lake-Wood River 1,231
070900051103 Zuma Creek 809
102300010305 Bacon Creek-Missouri River 786
020700010509 Stony Run-South Fork South Branch Potomac River 546
101702031203 Falls of the Big Sioux River 539
111403050301 Tankersley Creek 441
102001010704 Lower Spring Creek 376
020503040803 Horning Creek-Juniata River 314
111401091001 Upper Mine Creek 127
020503061106 Muddy Run-Mill Creek 112

Download All Data

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)
TX0128511 SANDERSON FARMS INC WACO, TX 2015 Total Residual Chlorine 3,339
TX0113603 SANDERSON FARMS INC BRYAN, TX 2015 120701010702 Total Residual Chlorine 1,566
NE0113891 JBS SWIFT BEEF PROCESSING FACILITY GRAND ISLAND, NE 2011 102001020404 Ammonia as N 1,069
NE0001392 TYSON FRESH MEATS INC DAKOTA CITY, NE 2011 102300010305 Nitrogen, nitrate dissolved 705
IL0003913 TYSON FRESH MEATS INC - JOSLIN IL HILLSDALE, IL 2011 070900051103 Nitrogen, nitrate dissolved 575
SD0000078 JOHN MORRELL & CO SIOUX FALLS, SD 2011 101702031203 Nitrogen, nitrate dissolved 532
TX0062936 PILGRIM'S PRIDE CORP MT PLEASANT COMPLEX MOUNT PLEASANT, TX 2015 111403050301 Total Residual Chlorine 424
TX0128511 SANDERSON FARMS INC WACO, TX 2015 Nitrogen, nitrate dissolved 330
PA0007552 EMPIRE KOSHER POULTRY INC MIFFLINTOWN, PA 2015 020503040803 Total Residual Chlorine 306

Download All Data

Top of Page

About the Data Glossary Error Correction Contact Us

Jump to main content.