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 - Cement manufacturing (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 345 272 345 51.9 51.9
MERCURY AND MERCURY COMPOUNDS 18.6 0.35 18.6 2.8003 54.7
NITRATE COMPOUNDS 12.9 0.019 12.9 1.95 56.6
MANGANESE AND MANGANESE COMPOUNDS 7.76 0 7.76 1.16 57.8
ZINC AND ZINC COMPOUNDS 3.79 0 3.79 0.57 58.3
NICKEL AND NICKEL COMPOUNDS 1.94 0 1.94 0.29 58.6
CHROMIUM AND CHROMIUM COMPOUNDS 0.92 0.44 0.92 0.13 58.8
SELENIUM AND SELENIUM COMPOUNDS 0.28 0 0.28 0.043 58.8
AMMONIA 0.016 0 0.016 0.0025 58.8
ETHYLENE GLYCOL 0.0067 0.0016 0.0083 0.0012 58.8

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)
051202080301 Sugar Creek 158 0 158
020503060901 Little Cocalico Creek-Cocalico Creek 8.067 0 8.067
101701011403 Outlet Elk Creek 1.92 0 1.92
020802011301 Little Catawba Creek-Catawba Creek 1.4 0 1.4
020402030203 East Branch Schuylkill River 1.34 0 1.34
050902020104 Yellow Springs Creek-Little Miami River 0.97 0 0.97
040900040407 River Rouge 0.71 0 0.71
102300010302 Perry Creek 0.39 0 0.39
171100130305 Green River 0.33 0 0.33
050100090103 Rough Creek 0.11 0 0.11

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)
93243NTNLCSTATE NATIONAL CEMENT CO OF CALIFORNIA INC LEBEC, CA 327310 LEAD AND LEAD COMPOUNDS 188 0 188
47446LHGHP121NO LEHIGH CEMENT CO LLC MITCHELL, IN 327310 051202080301 LEAD AND LEAD COMPOUNDS 143 0 143
47446LHGHP121NO LEHIGH CEMENT CO LLC MITCHELL, IN 327310 051202080301 MERCURY AND MERCURY COMPOUNDS 15.2 0 15.2
2808WCNCRT181QU CONCRETE SUPPLY CO KINGS MOUNTAIN KINGS MOUNTAIN, NC 327320 NITRATE COMPOUNDS 12.5 0 12.5
92377MNRLF3511N MONIERLIFETILE LLC RIALTO, CA 327390 LEAD AND LEAD COMPOUNDS 5.37 0 5.37
17517HGHCN125DE HIGH CONCRETE GROUP LLC - DENVER FACILTIY DENVER, PA 327390 020503060901 MANGANESE AND MANGANESE COMPOUNDS 3.74 0 3.74
96003CLVRS15390 LEHIGH SOUTHWEST CEMENT CO REDDING, CA 327310 180200031301 ZINC AND ZINC COMPOUNDS 3.45 0 3.45
17517HGHCN125DE HIGH CONCRETE GROUP LLC - DENVER FACILTIY DENVER, PA 327390 020503060901 LEAD AND LEAD COMPOUNDS 3.42 0 3.42
96003CLVRS15390 LEHIGH SOUTHWEST CEMENT CO REDDING, CA 327310 180200031301 LEAD AND LEAD COMPOUNDS 1.904 0 1.904
96003CLVRS15390 LEHIGH SOUTHWEST CEMENT CO REDDING, CA 327310 180200031301 MANGANESE AND MANGANESE COMPOUNDS 1.89 0 1.89

Download All Data

Top of Page

About the Data Glossary Error Correction Contact Us

Jump to main content.