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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 - Grain mills (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
NITRATE COMPOUNDS 1,395 249 1,637 15.5 15.5
LEAD AND LEAD COMPOUNDS 140 333 464 4.407 19.9
ETHYLENE GLYCOL 0.21 331 331 3.15 23.1
NICKEL AND NICKEL COMPOUNDS 86 0 86 0.81 23.9
ACETALDEHYDE 15.5 31.1 35.08 0.33 24.2
AMMONIA 27.5 363 34.8 0.33 24.6
MERCURY AND MERCURY COMPOUNDS 0 29.8 29.8 0.28 24.8
ZINC AND ZINC COMPOUNDS 8.76 22.7 8.76 0.083 24.9
METHANOL 0.21 0.075 0.25 0.0024 24.9
PROPYLENE OXIDE 0.02 0.13 0.15 0.0014 24.9

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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)
070801041806 Cedar Glen Creek-Mississippi River 1,078 0 1,078
071300060405 City of Decatur-Lake Decatur 17.3 370 388
070802051405 Prairie Creek 0 343 343
051201070409 Dry Run-Wildcat Creek 2.0702 215 217
102702030305 102702030305 170 0 170
020401060602 Lower Jordan Creek 94.5 0 94.5
071300030304 Pekin Lake-Illinois River 91.1 0 91.1
040400010603 Calumet River-Frontal Lake Michigan 59.06 3.97 59.09
051201050601 Little Sugar Creek-Sugar Creek 0.23 19.2 19.4
070600051101 Headwaters Elk River 16.2 0 16.2

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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)
52632THHBNONEPR ROQUETTE AMERICA INC KEOKUK, IA 311221 070801041806 NITRATE COMPOUNDS 971 0 971
52406PNFRD1001F PENFORD PRODUCTS CO CEDAR RAPIDS, IA 311221 070802051405 ETHYLENE GLYCOL 0 331 331
62525STLYM2200E TATE & LYLE DECATUR DECATUR, IL 311221 071300060405 LEAD AND LEAD COMPOUNDS 0 324 324
47902STLYM2245N TATE & LYLE SAGAMORE LAFAYETTE, IN 311221 051201070409 NITRATE COMPOUNDS 1.98 212 214
68333LPPTFBOX96 NESTLE PURINA PETCARE CO CRETE, NE 311111 102702030305 NITRATE COMPOUNDS 162 0 162
58075PRGLD18049 CARGILL INC WET CORN MILLING - WAHPETON WAHPETON, ND 311221 090201040401 LEAD AND LEAD COMPOUNDS 140 0 140
18001LPPTFROUTE NESTLE PURINA PETCARE CO ALLENTOWN, PA 311111 020401060602 NITRATE COMPOUNDS 94.5 0 94.5
61554PKNNR1300S AVENTINE RENEWABLE ENERGY INC PEKIN, IL 311221 071300030304 NITRATE COMPOUNDS 89.8 0 89.8
52632THHBNONEPR ROQUETTE AMERICA INC KEOKUK, IA 311221 070801041806 NICKEL AND NICKEL COMPOUNDS 86 0 86
46320MRCNM1100I CARGILL TEXTURIZING SOLUTIONS HAMMOND, IN 311221 040400010603 NITRATE COMPOUNDS 59.06 0.025 59.09

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