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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 - Fertilizer 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
NITRATE COMPOUNDS 3,067 19.1 3,086 68.9 68.9
COPPER AND COPPER COMPOUNDS 403 0 403 9.0201 78.008
LEAD AND LEAD COMPOUNDS 244 1.42 245 5.48 83.4
AMMONIA 231 7.64 239 5.33 88.8
CARBARYL 136 1.078 137 3.053 91.8
NICKEL AND NICKEL COMPOUNDS 104 0 104 2.32 94.2
MERCURY AND MERCURY COMPOUNDS 99.5 0 99.5 2.22 96.4
ZINC AND ZINC COMPOUNDS 84.1 0 84.1 1.88 98.3
DIOXIN AND DIOXIN-LIKE COMPOUNDS 42.3 0 42.3 0.94 99.2
MANGANESE AND MANGANESE COMPOUNDS 16.4 5.63 22.07 0.49 99.7

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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)
080903010101 Bayou Napoleon-Bayou Verret 831 0 831
080302060705 Lower Piney Creek 415 0 415
110701050205 Moss Creek-Verdigris River 322 0 322
102702020401 City of Plymouth 218 0 218
060300051002 Colbert Creek-Pickwick Lake 192 0 192
041000070306 Lima Reservoir-Ottawa River 191 0 191
080701000105 Claiborne Island 158 0 158
170800030700 Lower Columbia-Clatskanie 88.4 0 88.4
071100040702 Buffalo Creek-Mississippi River 79.2 0 79.2
080402010407 Haynes Creek 58.2 0 58.2

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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)
70346CFNDSHWY30 CF INDUSTRIES NITROGEN LLC DONALDSONVILLE, LA 325311 080903010101 NITRATE COMPOUNDS 763 0 763
30903CLMBN23COL PCS NITROGEN FERTILIZER LP AUGUSTA, GA 325311 NITRATE COMPOUNDS 693 0 693
73701FRMLN1MILE KOCH NITROGEN CO LLC ENID, OK 325311 NITRATE COMPOUNDS 418 0 418
39194MSSSSHIGHW CF INDUSTRIES NITROGEN LLC - YAZOO CITY MISSISSIPPI PLANT YAZOO CITY, MS 325311 080302060705 NITRATE COMPOUNDS 398 0 398
68310FRMLN4MIWE KOCH NITROGEN CO LLC BEATRICE, NE 325311 102702020401 LEAD AND LEAD COMPOUNDS 202 0 202
35616LRCHNHIGHW CHEROKEE NITROGEN LLC CHEROKEE, AL 325311 060300051002 NITRATE COMPOUNDS 186 0 186
74015GRCVR23302 TERRA NITROGEN LP VERDIGRI S PLANT CLAREMORE, OK 325311 110701050205 COPPER AND COPPER COMPOUNDS 158 0 158
73701FRMLN1MILE KOCH NITROGEN CO LLC ENID, OK 325311 COPPER AND COPPER COMPOUNDS 158 0 158
74015GRCVR23302 TERRA NITROGEN LP VERDIGRI S PLANT CLAREMORE, OK 325311 110701050205 NITRATE COMPOUNDS 157 0 157
43935LSCMR100PI TURF CARE SUPPLY CORP MARTINS FERRY, OH 325314 CARBARYL 136 1.078 137

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