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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 p, 7K).

Point Source Category Information - CAFO (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 269 49.8 49.8
Copper, total recoverable 98.1 18.1 68.04
Nitrogen, ammonia total (as N) 51.07 9.46 77.5
Chloride (as Cl) 48.1 8.92 86.4
Aluminum, dissolved (as Al) 27.6 5.11 91.5
Nitrogen, ammonia, total (as NH3) 13.4 2.49 94.04
Zinc, total recoverable 11.9 2.22 96.2
Sulfate (as S) 8.87 1.64 97.9
Ammonia (as N) + unionized ammonia 3.24 0.602 98.5
Nitrogen, nitrate total (as N) 2.77 0.51 99.03

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
110702060302 Middle Honey Creek 87.8

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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)
NY0008125 JURGIELEWICZ DUCK FARM MORICHES, NY 0259 Total Residual Chlorine 130
AR0041734 TYSON FOODS INC NASHVILLE PROCESSING PLANT NASHVILLE, AR 0251 111401091001 Total Residual Chlorine 96.6
AR0003018 TYSON FOODS INC GRANNIS PROCESSING PLANT GRANNIS, AR 0254 111401090203 Copper 83.3
MO0036773 SIMMONS FOODS SOUTH WEST CITY, MO 0251 110702060302 Chloride 48.1
MO0036773 SIMMONS FOODS SOUTH WEST CITY, MO 0251 110702060302 Aluminum 27.6
AL0003697 PILGRIM'S PRIDE PROCESSING PLANT ENTERPRISE, AL 0254 031402011102 Total Residual Chlorine 27.3
AL0003697 PILGRIM'S PRIDE PROCESSING PLANT ENTERPRISE, AL 0254 031402011102 Ammonia as N 25.3
FL0001465 PILGRIM'S PRIDE PROCESSING PLANT LIVE OAK, FL 0254 031102050101 Total Residual Chlorine 15.5
AR0041734 TYSON FOODS INC NASHVILLE PROCESSING PLANT NASHVILLE, AR 0251 111401091001 Copper 14.7
NY0008125 JURGIELEWICZ DUCK FARM MORICHES, NY 0259 Ammonia as NH3 13.4

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