Clean Water Act discharge permit · NPDES CO0049005
MCDONALD FARMS ENTERPRISES INC (MFEI) WWTF, Denver, CO: NPDES CO0049005 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 272Pollutants under a numeric limit
- 17Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
MCDONALD FARMS ENTERPRISES INC (MFEI) WWTF, held by McDonald Farms Enterprises Inc, holds NPDES permit CO0049005, which discharges to South Platte River. EPA’s file records it issued October 31, 2017 and expiring November 30, 2022.
MCDONALD FARMS ENTERPRISES INC (MFEI) WWTF, Denver, Colorado: Individual permit CO0049005, held by McDonald Farms Enterprises Inc; Administratively continued (past its expiration date and still in force until reissued); issued October 31, 2017, term to November 30, 2022; discharges to South Platte River.
- Selenium, potentially dissolvd: 5 limits, 39 violations of any kind, 21 effluent exceedances, latest November 30, 2022, largest 590% over the limit.
- Copper, potentially dissolved: 5 limits, 37 violations of any kind, 21 effluent exceedances, latest August 31, 2025, largest 348% over the limit.
- BOD, 5-day, percent removal: 2 limits, 19 violations of any kind, 12 effluent exceedances, latest June 30, 2025, largest 615% over the limit.
- Chloroform: 3 limits, 12 violations of any kind, 10 effluent exceedances, latest August 31, 2025, largest 461% over the limit.
- Bis[2-chloroethyl] ether: 2 limits, 10 violations of any kind, 9 effluent exceedances, latest August 31, 2025, largest 30,488% over the limit.
- Cyanide, weak acid, dissociable: 3 limits, 13 violations of any kind, 7 effluent exceedances, latest August 31, 2025, largest 158% over the limit.
- Temperature, water deg. centigrade: 14 limits, 54 violations of any kind, 6 effluent exceedances, latest February 29, 2024, largest 100% over the limit.
- Sodium adsorption ratio: 8 limits, 21 violations of any kind, 5 effluent exceedances, latest February 29, 2024, largest 73% over the limit.
- BOD, 5-day, 20 deg. C: 4 limits, 15 violations of any kind, 5 effluent exceedances, latest November 30, 2023, largest 228% over the limit.
- Mercury, total low level: 3 limits, 5 violations of any kind, 5 effluent exceedances, latest September 30, 2025, largest 90% over the limit.
- Zinc, potentially dissolved: 5 limits, 19 violations of any kind, 4 effluent exceedances, latest April 30, 2021, largest 5% over the limit.
- Solids, suspended percent removal: 2 limits, 11 violations of any kind, 4 effluent exceedances, latest May 31, 2025, largest 99,999% over the limit.
- Sulfate: 2 limits, 8 violations of any kind, 4 effluent exceedances, latest December 31, 2023, largest 105% over the limit.
- Nitrogen, inorganic total: 6 limits, 35 violations of any kind, 2 effluent exceedances, latest February 29, 2024, largest 112% over the limit.
- Solids, total suspended: 4 limits, 9 violations of any kind, 1 effluent exceedance, latest April 30, 2022, largest 1% over the limit.
- E. coli: 4 limits, 9 violations of any kind, 1 effluent exceedance, latest July 31, 2020, largest 38% over the limit.
- LC50 Static Renewal 96Hr Acute Pimephales promelas: 1 limit, 1 violation of any kind, 1 effluent exceedance, latest December 31, 2022, largest 16% over the limit.
- Chromium, hexavalent dissolved [as Cr]: 5 limits, 12 violations of any kind, 0 effluent exceedances.
- Cadmium, potentially dissolvd: 3 limits, 12 violations of any kind, 0 effluent exceedances.
- Manganese, potentially dissolvd: 5 limits, 11 violations of any kind, 0 effluent exceedances.
- 2,4,6-Trichlorophenol: 5 limits, 11 violations of any kind, 0 effluent exceedances.
- Silver, potentially dissolved: 5 limits, 10 violations of any kind, 0 effluent exceedances.
- Phenol: 5 limits, 10 violations of any kind, 0 effluent exceedances.
- Acetone: 5 limits, 10 violations of any kind, 0 effluent exceedances.
- p-Cresol: 4 limits, 10 violations of any kind, 0 effluent exceedances.
- Chlorine, total residual: 3 limits, 10 violations of any kind, 0 effluent exceedances.
- Bis[2-chloroisopropyl] ether: 2 limits, 9 violations of any kind, 0 effluent exceedances.
- Bicarbonate ion- [as HCO3]: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Calcium, total recoverable: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Magnesium, total recoverable: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Sodium, total recoverable: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Copper, total [as Cu]: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Zinc, total [as Zn]: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Butanone: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Pyridine: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Acetophenone: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- Lead, potentially dissolvd: 3 limits, 8 violations of any kind, 0 effluent exceedances.
- Oil and grease: 3 limits, 8 violations of any kind, 0 effluent exceedances.
- pH: 2 limits, 8 violations of any kind, 0 effluent exceedances.
- o-Cresol [2-Methylphenol]: 2 limits, 8 violations of any kind, 0 effluent exceedances.
- Cadmium, total recoverable: 4 limits, 7 violations of any kind, 0 effluent exceedances.
- Chloride [as Cl]: 3 limits, 7 violations of any kind, 0 effluent exceedances.
- Nickel, total recoverable: 4 limits, 6 violations of any kind, 0 effluent exceedances.
- Iron, total recoverable: 3 limits, 6 violations of any kind, 0 effluent exceedances.
- Molybdenum, total recoverable: 3 limits, 6 violations of any kind, 0 effluent exceedances.
- Chromium, trivalent total recoverable: 3 limits, 6 violations of any kind, 0 effluent exceedances.
- Arsenic, total recoverable: 3 limits, 4 violations of any kind, 0 effluent exceedances.
- Lead, total recoverable: 3 limits, 4 violations of any kind, 0 effluent exceedances.
- Nonylphenol: 3 limits, 4 violations of any kind, 0 effluent exceedances.
- Sodium Absorption Ratio: 3 limits, 4 violations of any kind, 0 effluent exceedances.
- Conductivity: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Iron, dissolved [as Fe]: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Manganese, dissolved [as Mn]: 2 limits, 4 violations of any kind, 0 effluent exceedances.
- Benzo[b]fluoranthene: 2 limits, 3 violations of any kind, 0 effluent exceedances.
- Benzo[k]fluoranthene: 2 limits, 3 violations of any kind, 0 effluent exceedances.
- Bis[chloromethyl] ether: 2 limits, 3 violations of any kind, 0 effluent exceedances.
- Indeno[1,2,3-cd]pyrene: 2 limits, 3 violations of any kind, 0 effluent exceedances.
- Benzo[ghi]perylene: 2 limits, 3 violations of any kind, 0 effluent exceedances.
Other permits held by McDonald Farms Enterprises Inc
- MCDONALD FARMS ENTERPRISES INCS, Denver: COPIU007B, issued April 1, 2023
- MCDONALD FARMS ENTERPRISES INC, Frederick: COR901525, issued October 30, 2019
MCDONALD FARMS ENTERPRISES INC (MFEI) WWTF among its neighbors
EPA’s permit file holds 228 discharge permits in the Cherry Creek-South Platte River subwatershed (HUC 101900030304), CO0049005 among them. Its county holds 465, 3 of them major permits; CO0049005 is a minor permit.
Other permits in the Cherry Creek-South Platte River subwatershed (HUC 101900030304)
- 1158 DELAWARE, Denver: COR417163, minor permit, permit term to March 31, 2024
- 1401 WYNKOOP PARKING GARAGE, Denver County: COG603107, minor permit, discharging to Cherry Creek, permit term to December 31, 2012
- 1565 N COLORADO BLVD, Denver: COR428972, minor permit, permit term to March 31, 2029
- 1601 COLORADO APTS, Denver County: COG603087, minor permit, discharging to Storm Sewer, permit term to December 31, 2012
- 1601 WEWATTA, Denver: CO0000008, minor permit, discharging to South Platte River, permit term to September 30, 2018
- 1790 LOGAN STREET AND 1799 PENNSYLVANIA STREET, Denver: COR424249, minor permit, permit term to March 31, 2029
- 1800 LARIMER LLC, Denver County: COG603158, minor permit, discharging to Cherry Creek, permit term to December 31, 2012
- 1900 LAWRENCE, Denver: COG318123, minor permit, discharging to Cherry Creek and South Platte River, permit term to May 31, 2028
- 23041 - CRESTMOOR PARK PROJECT (REPLACEMENT), Denver: COR430963, minor permit, permit term to March 31, 2029
- 299 MILWAUKEE, Denver: COR424747, minor permit, permit term to March 31, 2029
Identity
| Facility as filed | MCDONALD FARMS ENTERPRISES INC (MFEI) WWTF |
|---|---|
| Permittee as filed | McDonald Farms Enterprises Inc |
| NPDES ID | CO0049005 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 31, 2017 |
| Expiration date | November 30, 2022 |
| Address | Denver, CO 80216 |
| Receiving water | South Platte River |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Cherry Creek-South Platte River (HUC 101900030304) |
Effluent limits and exceedances
- 272Pollutants on file
- 272Under a numeric limit
- 211With a violation of any kind
- 17With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant; the 60 with the most exceedances of 272 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Selenium, potentially dissolvd | 5 | 39 | 21 | November 30, 2022 | 590% over the limit |
| Copper, potentially dissolved | 5 | 37 | 21 | August 31, 2025 | 348% over the limit |
| BOD, 5-day, percent removal | 2 | 19 | 12 | June 30, 2025 | 615% over the limit |
| Chloroform | 3 | 12 | 10 | August 31, 2025 | 461% over the limit |
| Bis[2-chloroethyl] ether | 2 | 10 | 9 | August 31, 2025 | 30,488% over the limit |
| Cyanide, weak acid, dissociable | 3 | 13 | 7 | August 31, 2025 | 158% over the limit |
| Temperature, water deg. centigrade | 14 | 54 | 6 | February 29, 2024 | 100% over the limit |
| Sodium adsorption ratio | 8 | 21 | 5 | February 29, 2024 | 73% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 15 | 5 | November 30, 2023 | 228% over the limit |
| Mercury, total low level | 3 | 5 | 5 | September 30, 2025 | 90% over the limit |
| Zinc, potentially dissolved | 5 | 19 | 4 | April 30, 2021 | 5% over the limit |
| Solids, suspended percent removal | 2 | 11 | 4 | May 31, 2025 | 99,999% over the limit |
| Sulfate | 2 | 8 | 4 | December 31, 2023 | 105% over the limit |
| Nitrogen, inorganic total | 6 | 35 | 2 | February 29, 2024 | 112% over the limit |
| Solids, total suspended | 4 | 9 | 1 | April 30, 2022 | 1% over the limit |
| E. coli | 4 | 9 | 1 | July 31, 2020 | 38% over the limit |
| LC50 Static Renewal 96Hr Acute Pimephales promelas | 1 | 1 | 1 | December 31, 2022 | 16% over the limit |
| Chromium, hexavalent dissolved [as Cr] | 5 | 12 | 0 | ||
| Cadmium, potentially dissolvd | 3 | 12 | 0 | ||
| Manganese, potentially dissolvd | 5 | 11 | 0 | ||
| 2,4,6-Trichlorophenol | 5 | 11 | 0 | ||
| Silver, potentially dissolved | 5 | 10 | 0 | ||
| Phenol | 5 | 10 | 0 | ||
| Acetone | 5 | 10 | 0 | ||
| p-Cresol | 4 | 10 | 0 | ||
| Chlorine, total residual | 3 | 10 | 0 | ||
| Bis[2-chloroisopropyl] ether | 2 | 9 | 0 | ||
| Bicarbonate ion- [as HCO3] | 4 | 8 | 0 | ||
| Phosphorus, total [as P] | 4 | 8 | 0 | ||
| Calcium, total recoverable | 4 | 8 | 0 | ||
| Magnesium, total recoverable | 4 | 8 | 0 | ||
| Sodium, total recoverable | 4 | 8 | 0 | ||
| Copper, total [as Cu] | 4 | 8 | 0 | ||
| Zinc, total [as Zn] | 4 | 8 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 8 | 0 | ||
| Butanone | 4 | 8 | 0 | ||
| Pyridine | 4 | 8 | 0 | ||
| Acetophenone | 4 | 8 | 0 | ||
| Lead, potentially dissolvd | 3 | 8 | 0 | ||
| Oil and grease | 3 | 8 | 0 | ||
| pH | 2 | 8 | 0 | ||
| o-Cresol [2-Methylphenol] | 2 | 8 | 0 | ||
| Cadmium, total recoverable | 4 | 7 | 0 | ||
| Chloride [as Cl] | 3 | 7 | 0 | ||
| Nickel, total recoverable | 4 | 6 | 0 | ||
| Iron, total recoverable | 3 | 6 | 0 | ||
| Molybdenum, total recoverable | 3 | 6 | 0 | ||
| Chromium, trivalent total recoverable | 3 | 6 | 0 | ||
| Arsenic, total recoverable | 3 | 4 | 0 | ||
| Lead, total recoverable | 3 | 4 | 0 | ||
| Nonylphenol | 3 | 4 | 0 | ||
| Sodium Absorption Ratio | 3 | 4 | 0 | ||
| Conductivity | 2 | 4 | 0 | ||
| Iron, dissolved [as Fe] | 2 | 4 | 0 | ||
| Manganese, dissolved [as Mn] | 2 | 4 | 0 | ||
| Benzo[b]fluoranthene | 2 | 3 | 0 | ||
| Benzo[k]fluoranthene | 2 | 3 | 0 | ||
| Bis[chloromethyl] ether | 2 | 3 | 0 | ||
| Indeno[1,2,3-cd]pyrene | 2 | 3 | 0 | ||
| Benzo[ghi]perylene | 2 | 3 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES CO0049005.
Inspections
EPA’s inspection file holds no inspection for NPDES CO0049005.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES CO0049005.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.