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 p, 7K).

Point Source Category Information - Unassigned Waste Facility (TRI)

EPA 304M Annual Review icon — Indicates load was altered by EPA’s 304M Annual Review. You can hover over the green flag to see the original load from the TRI data.

Top Chemicals - Toxic-Weighted Pounds (TWPE) (2011)
Chemical Name Direct TRI TWPE (lb-eq/yr) Indirect TRI TWPE (lb-eq/yr) Total TRI TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
LEAD AND LEAD COMPOUNDS 165 36.7 177 24.6 24.6
NITRATE COMPOUNDS 28.3 178 90.8 12.7 37.3
COPPER AND COPPER COMPOUNDS 31.4 10.7 41.7 5.84 43.2
MERCURY AND MERCURY COMPOUNDS 40.5 0.93 41.4 5.803 49.04
MANGANESE AND MANGANESE COMPOUNDS 17.5 21.84 39.34 5.501 54.5
ARSENIC AND ARSENIC COMPOUNDS 39.1 0 39.1 5.48 60.02
NICKEL AND NICKEL COMPOUNDS 9.103 30.7 37.8 5.29 65.3
ZINC AND ZINC COMPOUNDS 14.5 0.35 14.8 2.076 67.4
CADMIUM AND CADMIUM COMPOUNDS 13.4 14.5 14.09 1.97 69.3
CHROMIUM AND CHROMIUM COMPOUNDS 13.005 4.089 13.4 1.87 71.2

Download All Data

Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Direct TRI TWPE (lb-eq/yr) Indirect TRI TWPE (lb-eq/yr) Total TRI TWPE (lb-eq/yr)
051202011306 Clarks Creek-White Lick Creek 52.4 63.4 113
050200061104 Lower Sewickley Creek 113 0 113
020503060705 Willis Run-Codorus Creek 44.6 37.6 82.3
050400010502 East Branch Nimishillen Creek 17.1 30.2 47.3
071200030405 Little Calumet River 19.7 8.35 28.05
121102050606 Gertrude Lubby Lake-Petronila Creek 26.6 0 26.6
050600021303 Little Beaver Creek-Big Beaver Creek 23.1 0 23.1
071300030205 Big Hollow Creek-Kickapoo Creek 2.24 13.6 15.9
070700030304 Village of Plover-Wisconsin River 9.95 0 9.95
080402020501 Boggy Creek 3.16 0 3.16

Download All Data

Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2011)
TRI Facility ID Facility Name City, State NAICS Code HUC-12 Code Top Chemical Top Chemcical Direct TRI TWPE (lb-eq/yr) Top Chemcical Indirect TRI TWPE (lb-eq/yr) Top Chemcical Total TRI TWPE (lb-eq/yr)
15698MLLSRCEMET MAX ENVIRONMENTAL -- YUKON FAC ILITY YUKON, PA 562211 050200061104 LEAD AND LEAD COMPOUNDS 63.1 0 63.1
17404NVRTF730VO ENVIRITE OF PENNSYLVANIA INC YORK, PA 562211 020503060705 LEAD AND LEAD COMPOUNDS 42.56 2.0608 44.6
46231HRTGN7901W HERITAGE ENVIRONMENTAL SERVICES LLC INDIANAPOLIS, IN 562211 051202011306 MANGANESE AND MANGANESE COMPOUNDS 17.5 21 38.5
17404NVRTF730VO ENVIRITE OF PENNSYLVANIA INC YORK, PA 562211 020503060705 NITRATE COMPOUNDS 0.048 30.6 30.7
44707NVRTF2050C ENVIRITE OF OHIO INC CANTON, OH 562211 050400010502 NITRATE COMPOUNDS 0.0604 25.1 25.2
46231HRTGN7901W HERITAGE ENVIRONMENTAL SERVICES LLC INDIANAPOLIS, IN 562211 051202011306 NICKEL AND NICKEL COMPOUNDS 0.5 24.5 25
45661SDPRT3930U US DOE PORTSMOUTH GASEOUS DIFFUSION PLANT (PART) PIKETON, OH 562211 050600021303 NITRATE COMPOUNDS 23.1 0 23.1
78380TXSCLPETRO US ECOLOGY TEXAS INC ROBSTOWN, TX 562211 121102050606 ARSENIC AND ARSENIC COMPOUNDS 20.2 0 20.2
46231HRTGN7901W HERITAGE ENVIRONMENTAL SERVICES LLC INDIANAPOLIS, IN 562211 051202011306 LEAD AND LEAD COMPOUNDS 13.44 6.18 19.6
15698MLLSRCEMET MAX ENVIRONMENTAL -- YUKON FAC ILITY YUKON, PA 562211 050200061104 ARSENIC AND ARSENIC COMPOUNDS 18.9 0 18.9

Download All Data

Top of Page

About the Data Glossary Error Correction Contact Us

Jump to main content.