Clean Water Act discharge permit · NPDES MO0023124
LOUISIANA WWTP, Louisiana, MO: NPDES MO0023124 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 39Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
LOUISIANA WWTP, held by City of Louisiana, holds NPDES permit MO0023124, which discharges to Noix Cr.. EPA’s file records it issued August 9, 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 | LOUISIANA WWTP |
|---|---|
| Permittee as filed | City of Louisiana |
| NPDES ID | MO0023124 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 9, 2016 |
| Expiration date | March 31, 2019 |
| Address | Louisiana, MO 63353 |
| Receiving water | Noix Cr. |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Noix Creek-Mississippi River (HUC 071100040701) |
| 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
- 44Pollutants on file
- 39Under a numeric limit
- 19With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, percent removal | 0 | 8 | 8 | July 31, 2024 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 11 | 5 | July 31, 2024 | 329% over the limit |
| E. coli | 2 | 6 | 4 | October 31, 2018 | 99,999% over the limit |
| Solids, total suspended | 3 | 7 | 2 | October 31, 2006 | 84% over the limit |
| pH | 2 | 5 | 2 | June 30, 2018 | |
| Chlorine, total residual | 0 | 2 | 2 | June 30, 2009 | 40% over the limit |
| Phosphorus, total [as P] | 4 | 8 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 6 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 6 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 4 | 0 | ||
| BOD, 5-day, 20 deg. C | 3 | 3 | 0 | ||
| Nitrogen, total [as N] | 4 | 2 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 2 | 0 | ||
| Copper, total recoverable | 2 | 2 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 2 | 2 | 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 | ||
| Solids, suspended percent removal | 0 | 1 | 0 | ||
| Sulfate, total [as SO4] | 2 | 0 | 0 | ||
| Fluoride, total [as F] | 2 | 0 | 0 | ||
| Arsenic, total recoverable | 2 | 0 | 0 | ||
| Cobalt, total recoverable | 2 | 0 | 0 | ||
| Iron, total recoverable | 2 | 0 | 0 | ||
| Selenium, total recoverable | 2 | 0 | 0 | ||
| Thallium, total recoverable | 2 | 0 | 0 | ||
| Beryllium, total recoverable [as Be] | 2 | 0 | 0 | ||
| Nickel, total recoverable | 2 | 0 | 0 | ||
| Silver total recoverable | 2 | 0 | 0 | ||
| Zinc, total recoverable | 2 | 0 | 0 | ||
| Cadmium, total recoverable | 2 | 0 | 0 | ||
| Lead, total recoverable | 2 | 0 | 0 | ||
| Antimony, total recoverable | 2 | 0 | 0 | ||
| Chromium, trivalent total recoverable | 2 | 0 | 0 | ||
| 1,2-Dichloroethane | 2 | 0 | 0 | ||
| Toluene | 2 | 0 | 0 | ||
| Benzene | 2 | 0 | 0 | ||
| Ethylbenzene | 2 | 0 | 0 | ||
| Phenol | 2 | 0 | 0 | ||
| Naphthalene | 2 | 0 | 0 | ||
| Trichloroethylene | 2 | 0 | 0 | ||
| Chloride | 2 | 0 | 0 | ||
| Mercury, total recoverable | 2 | 0 | 0 | ||
| Xylene [mix of m+o+p] | 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
- 5Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 23, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| October 8, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| October 8, 2025 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 31, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| September 18, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
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.
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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 MO0023124 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.