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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 - CAFO (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) (2011)
Pollutant Name Total DMR TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
Total Residual Chlorine 130 79.1 79.1
Ammonia as N 17.5 10.6 89.8
Ammonia as NH3 13.4 8.21 98.09
Nitrogen, nitrate dissolved 2.24 1.37 99.4
Iron 0.65 0.402 99.8
Manganese 0.19 0.11 99.9
Nitrite nitrogen, dissolved (as N) 0.013 0.0081 100

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
031601040201 Little Houlka Creek-Houlka Creek 5.64
031601040505 Johnson Creek-Walkers Gin 1.95
041000110504 Paw Paw Run 0.93
020801110601 Beasley Bay-Messongo Creek 0.35
080602010306 Big Bywy Ditch-Big Black River Canal 0.23
080602010104 Lick Creek-Big Black River Canal 0.209
080302050101 Fourmile Creek-Yalobusha River 0.062
080602010105 Little Black Creek-Big Black River Canal 0.054
100700071106 Yellowstone River-Sand Creek 0.053
031601040203 Chico Creek-Houlka Creek 0.051

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Top Facility Discharges in Toxic-Weighted Pounds (TWPE) (2011)
NPDES ID Facility Name City, State SIC Code HUC-12 Code Top Pollutant Top Pollutant TWPE (lb-eq/yr)
NY0008125 JURGIELEWICZ DUCK FARM MORICHES, NY 0259 020302020601 Total Residual Chlorine 130
NY0008125 JURGIELEWICZ DUCK FARM MORICHES, NY 0259 020302020601 Ammonia as NH3 13.4
MSG220010 GOODIN AND HUNT INC LOUISVILLE, MS 0213 031800010204 Ammonia as N 2.69
NY0008125 JURGIELEWICZ DUCK FARM MORICHES, NY 0259 020302020601 Nitrogen, nitrate dissolved 2.19
MSG220030 PRESTAGE FARMS INC, ISOLATION NUMBER 3 PHEBA, MS 0213 031601040505 Ammonia as N 1.16
MSG220034 PRESTAGE FARMS INC MANTEE, MS 0213 Ammonia as N 1.16
MSG220035 PRESTAGE FARMS INC MANTEE, MS 0213 Ammonia as N 1.16
MSG220029 PRESTAGE FARMS INC, ISOLATION NUMBER 5 HOUSTON, MS 0213 031601040201 Ammonia as N 1.12
MSG220032 PRESTAGE FARMS INC, NUMBER 12 HOUSTON, MS 0213 031601040201 Ammonia as N 1.12
MSG220031 PRESTAGE FARMS INC, ISOLATION NUMBER 5 HOUSTON, MS 0213 031601040201 Ammonia as N 1.12

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