Clean Water Act discharge permit · NPDES MO0054623
TROY HWY 47 WWTP, Troy, MO: NPDES MO0054623 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 22Pollutants under a numeric limit
- 13Pollutants with an effluent exceedance
TROY HWY 47 WWTP, held by City of Troy, holds NPDES permit MO0054623, which discharges to Tributary To Town Branch. EPA’s file records it issued October 28, 2016 and expiring March 31, 2019. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | TROY HWY 47 WWTP |
|---|---|
| Permittee as filed | City of Troy |
| NPDES ID | MO0054623 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | October 28, 2016 |
| Expiration date | March 31, 2019 |
| Address | Troy, MO 63379 |
| Receiving water | Tributary to Town Branch |
| Subwatershed | Spring Creek-Cuivre River (HUC 071100080403) |
| Program components on file | Biosolids, POTW |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 29Pollutants on file
- 22Under a numeric limit
- 21With a violation of any kind
- 13With 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.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Oxygen, dissolved [DO] | 2 | 144 | 54 | June 30, 2013 | 99% over the limit |
| Chlorine, total residual | 2 | 114 | 44 | July 31, 2018 | 699,900% over the limit |
| Coliform, fecal general | 0 | 53 | 33 | October 31, 2012 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 35 | 29 | November 30, 2018 | 360% over the limit |
| Solids, total suspended | 3 | 64 | 20 | February 28, 2017 | 3,920% over the limit |
| E. coli | 0 | 19 | 17 | August 31, 2015 | 7,594% over the limit |
| E. coli, colony forming units [CFU] | 2 | 6 | 6 | August 31, 2017 | 1,275% over the limit |
| Lead, total recoverable | 2 | 20 | 4 | June 30, 2020 | 231% over the limit |
| Copper, total recoverable | 2 | 20 | 4 | December 31, 2017 | 32% over the limit |
| Phenols | 0 | 6 | 4 | March 31, 2011 | 900% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 47 | 3 | December 31, 2011 | 89% over the limit |
| CBOD5+NH3-N | 0 | 74 | 2 | December 31, 2005 | 15% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 3 | 1 | May 31, 2017 | 7% over the limit |
| Zinc, total recoverable | 2 | 16 | 0 | ||
| pH | 2 | 12 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 1 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 1 | 1 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 0 | 1 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 1 | 0 | ||
| Nitrogen, total [as N] | 6 | 0 | 0 | ||
| Phosphorus, total [as P] | 6 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Fluoride, total [as F] | 2 | 0 | 0 | ||
| Selenium, total recoverable | 2 | 0 | 0 | ||
| Thallium, total recoverable | 2 | 0 | 0 | ||
| Aluminum, total recoverable | 2 | 0 | 0 | ||
| Cadmium, total recoverable | 2 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES MO0054623.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID MO0054623 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.