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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 information on the methodology and types of changes identified, see EPA's most recent odd-numbered year Annual Effluent Guidelines Review Report (PDF) (169 pp, 2MB) 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 (PDF) (241 pp, 3.3MB).

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
MERCURY AND MERCURY COMPOUNDS 20,629 29.8 20,659 55.3 55.3
ACROLEIN 0 7,483 7,483 20.04 75.3
SELENIUM AND SELENIUM COMPOUNDS 3,090 0 3,090 8.27 83.6
COPPER AND COPPER COMPOUNDS 1,793 0 1,793 4.802 88.4
NITRATE COMPOUNDS 1,331 252 1,584 4.24 92.7
LEAD AND LEAD COMPOUNDS 732 333 1,065 2.85 95.5
AMMONIA 29.2 496 526 1.408 96.9
ARSENIC AND ARSENIC COMPOUNDS 506 0 506 1.35 98.3
NICKEL AND NICKEL COMPOUNDS 113 123 236 0.63 98.9
ETHYLENE GLYCOL 0.21 166 166 0.44 99.3

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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)
071200040705 Maple Lake-Chicago Sanitary and Ship Canal 0 7,839 7,839
071000090701 Miller Creek 1,695 0 1,695
071300060405 City of Decatur-Lake Decatur 17.3 382 399
051201070409 Dry Run-Wildcat Creek 2.0702 214 216
102702020202 Walnut Creek-Big Blue River 170 0 170
070802051405 Prairie Creek 0 110 110
020401060602 Lower Jordan Creek 94.5 0 94.5
040400010603 Calumet River-Frontal Lake Michigan 59.06 3.97 63.04
102400040201 Main Ditch No 6 26.6 0 26.6
070801010204 Cattail Slough-Mississippi 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 Chemical Direct TRI TWPE (lb-eq/yr) Top Chemical Indirect TRI TWPE (lb-eq/yr) Top Chemical Total TRI TWPE (lb-eq/yr)
62526DMCRN4666F ADM DECATUR, IL 311221 MERCURY AND MERCURY COMPOUNDS 20,629 0 20,629
60501CRNPR6400A INGREDION INC ARGO PLANT BEDFORD PARK, IL 311221 071200040705 ACROLEIN 0 7,483 7,483
62526DMCRN4666F ADM DECATUR, IL 311221 SELENIUM AND SELENIUM COMPOUNDS 3,090 0 3,090
52553CRGLLRR1CO CARGILL CORN MILLING EDDYVILLE, IA 311221 071000090701 COPPER AND COPPER COMPOUNDS 1,635 0 1,635
52632THHBNONEPR ROQUETTE AMERICA INC KEOKUK, IA 311221 NITRATE COMPOUNDS 971 0 971
62526DMCRN4666F ADM DECATUR, IL 311221 LEAD AND LEAD COMPOUNDS 593 0 593
62526DMCRN4666F ADM DECATUR, IL 311221 ARSENIC AND ARSENIC COMPOUNDS 506 0 506
60501CRNPR6400A INGREDION INC ARGO PLANT BEDFORD PARK, IL 311221 071200040705 AMMONIA 0 356 356
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

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