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Discharge Monitoring Report (DMR) Pollutant Loading Tool

The Loading Tool is being transitioned into ECHO to increase user access to data and streamline site maintenance. The beta version is now available for testing. EPA plans to retire this site in late November 2017. Current site functionality will be available in ECHO.

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 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.

Point Source Category Information - Fertilizer manufacturing (DMR)

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

Top Pollutants - Toxic-Weighted Pounds (TWPE) (2017)
Pollutant Name Total DMR TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
Fluoride 310,779 70.2 70.2
Sulfide 117,199 26.5 96.7
Aluminum 4,988 1.12 97.9
Ammonia as N 2,348 0.53 98.4
Cadmium 2,307 0.52 98.9
Selenium 1,553 0.35 99.3
Total Residual Chlorine 730 0.16 99.4
Nitrogen, nitrate dissolved 597 0.13 99.6
Radium-226 597 0.13 99.7
Arsenic 376 0.084 99.8

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Top Receiving Watersheds (2017)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
080702040202 Bayou Des Acadiens-Pipeline Canal 292,073
080903010103 St James Canal 24,396
080903010101 Bayou Napoleon-Bayou Verret 1,944
102500050506 Sixmile Canyon-Frenchman Creek 1,482
050902030204 Garrison Creek-Ohio River 514
080402010803 Crooked Creek-Ouachita River 459
060300051002 Colbert Creek-Pickwick Lake 232
070600050205 Little Menominee River-Mississippi River 155
110701050205 Moss Creek-Verdigris River 113
041000070306 Lima Reservoir-Ottawa River 108

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2017)
NPDES ID Facility Name City, State SIC Code HUC-12 Code Top Pollutant Top Pollutant TWPE (lb-eq/yr)
LA0004847 MOSAIC FERTILIZER LLC UNCLE SAM PLANT UNCLE SAM, LA 2874 080702040202 Fluoride 291,380
AL0077267 KOCH AGRONOMIC SERVICES, LLC THIRD AVENUE SYLACAUGA, AL 2875 031501070104 Sulfide 34,059
LA0029769 MOSAIC PHOSPHATES CO FAUSTINA PLANT SAINT JAMES, LA 2819 080903010103 Fluoride 18,336
LA0029769 MOSAIC PHOSPHATES CO FAUSTINA PLANT SAINT JAMES, LA 2819 080903010103 Aluminum 4,988
NE0121509 KUGLER OIL CO FERTILIZER PLANT CULBERTSON, NE 2873 102500050506 Selenium 1,480
MS0003115 MISSISSIPPI PHOSPHATES CORP PASCAGOULA, MS 2874 031700090301 Cadmium 1,215
MS0003115 MISSISSIPPI PHOSPHATES CORP PASCAGOULA, MS 2874 031700090301 Fluoride 1,063
LA0029769 MOSAIC PHOSPHATES CO FAUSTINA PLANT SAINT JAMES, LA 2819 080903010103 Cadmium 1,043

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