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 information on the methodology and types of changes identified, see EPA's most recent odd-numbered year Annual Effluent Guidelines Review Report 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.

Point Source Category Information - Pulp, paper and paperboard (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
Sulfide 236,315 35.9 35.9
2,3,7,8-Tetrachlorodibenzo-p-dioxin 176,312 26.8 62.8
Hexachlorobenzene 65,800 10.02 72.8
2,3,7,8-Tetrachlorodibenzofuran 65,772 10.01 82.8
Aluminum 45,759 6.97 89.8
Mercury 19,125 2.91 92.7
Total Residual Chlorine 13,611 2.073 94.8
Ammonia as N 8,406 1.28 96.1
Zinc 6,947 1.058 97.1
Manganese 6,826 1.039 98.2

Download All Data

Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
020700020402 Limestone Run-North Branch Potomac River 110,675
170601070201 Dry Creek-Snake River 64,279
010802050105 Freshwater Brook-Connecticut River 7,587
040801040207 Milwaukee Creek-Frontal Lake Huron 4,711
060400050405 Tennessee River-Harman Creek 3,497
060300021205 Page Branch-Tennessee River 1,903
080402020403 Coffee Creek-Ouachita River 1,892
080302050602 McSwine Creek-Yalobusha River 1,184
060101050206 Lyday Creek-French Broad River 988
060200021406 Hiwassee River-Dry Valley 903

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)
SC0000876 WESTROCK CP, LLC - FLORENCE MILL FLORENCE, SC 2631 030402011003 Sulfide 233,922
MD0021687 UPPER POTOMAC RIVER COMM STP WESTERNPORT, MD 2621 020700020402 2,3,7,8-Tetrachlorodibenzo-p-dioxin 110,666
FL0002631 MILITARY POINT INDUSTRIAL LAGOON PANAMA CITY, FL 2611 031401011100 Hexachlorobenzene 65,800
FL0000701 RAYONIER PERFORMANCE FIBERS, LLC FERNANDINA BEACH, FL 2611 030702040906 2,3,7,8-Tetrachlorodibenzofuran 65,772
ID0001163 CLEARWATER PAPER CORP LEWISTON, ID 2611 170601070201 2,3,7,8-Tetrachlorodibenzo-p-dioxin 64,049
CA0004821 PACTIV LLC RED BLUFF, CA 2679 180201550405 Mercury 18,924
MS0002941 GEORGIA PACIFIC MONTICELLO LLC, MONTICELLO MILL MONTICELLO, MS 2861 031800030306 Aluminum 15,032
FL0002631 MILITARY POINT INDUSTRIAL LAGOON PANAMA CITY, FL 2611 031401011100 Aluminum 9,984
MS0031704 GEORGIA PACIFIC WFS LLC NEW AUGUSTA, MS 2611 031700050604 Aluminum 8,705
MA0004561 HOLLINGSWORTH & VOSE ADVANCED MATERIALS GROTON, MA 2621 010700040302 Zinc 4,745

Download All Data

Top of Page

About the Data Glossary Error Correction Contact Us

Jump to main content.