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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).

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Point Source Category Information - Cement 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) (2011)
Pollutant Name Total DMR TWPE (lb-eq/yr) % of Category TWPE Cumulative % of
Category TWPE
Potassium, total (as K) 1,751 31.6 31.6
Iron, total (as Fe) 1,344 24.2 55.8
Mercury, total (as Hg) 1,215 21.9 77.7
Lead, total (as Pb) 402 7.26 85.03
Copper, total (as Cu) 149 2.69 87.7
Sulfate, total (as SO4) 113 2.042 89.7
Zinc, total (as Zn) 113 2.04008 91.8
Chromium, total (as Cr) 111 1.99 93.8
Arsenic, total (as As) 95.8 1.73 95.5
Manganese, total (as Mn) 68.1 1.22 96.7

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Top Receiving Watersheds (2011)
HUC-12 Code HUC Name Total DMR TWPE (lb-eq/yr)
040601050701 McGeach Creek-Frontal Grand Traverse Bay 1,701
040700030309 Grass Creek-Frontal Lake Huron 1,241
080102050401 Nixon Creek Upper 913
060101040101 Holston River-Hord Creek 145
051301080702 Falling Water River Upper 133
060101040209 Cherokee Lake-Panther Creek 118
060101080703 Sinking Creek-Nolichucky River 31.3
020200060402 Onesquethaw Creek 20.9
120402030106 Cedar Point Lateral-Cedar Bayou 16.8
120401040501 Upper Sims Bayou 13.6

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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)
MI0001988 LAFARGE MIDWEST INC ALPENA, MI 3241 040700030309 Potassium, total (as K) 1,237
MI0003158 ST MARYS CEMENT INC (US) CHARLEVOIX, MI 3241 040601050701 Mercury, total (as Hg) 1,089
TNG110086 B. T. REDI-MIX, INC. BROWNSVILLE, TN 3273 080102050401 Iron, total (as Fe) 913
MI0003158 ST MARYS CEMENT INC (US) CHARLEVOIX, MI 3241 040601050701 Potassium, total (as K) 514
TXG110796 GATE PRECAST HILLSBORO, TX 3272 120301080104 Lead, total (as Pb) 244
TNG110133 READY MIX USA LLC- KINGSPORT PLANT KINGSPORT, TN 3273 060101040101 Iron, total (as Fe) 145
TNG110033 BUILDERS SUPPLY COMPANY COOKEVILLE, TN 3273 051301080702 Iron, total (as Fe) 133
TXG110573 LONE STAR STONE OF TEXAS WHITNEY, TX 3272 120602020407 Lead, total (as Pb) 118
TNG110290 READY MIX USA - MORRISTOWN PLANT MORRISTOWN, TN 3273 060101040209 Iron, total (as Fe) 118
MI0003158 ST MARYS CEMENT INC (US) CHARLEVOIX, MI 3241 040601050701 Sulfate, total (as SO4) 98.5

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