Clean Water Act discharge permit · NPDES MOG640142
MARYVILLE WATER PLANT, Maryville, MO: NPDES MOG640142 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 21Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
MARYVILLE WATER PLANT, held by People Service Inc, holds NPDES permit MOG640142, which discharges to Tributary To One Hundred And Two R.. EPA’s file records it issued May 1, 2024 and expiring February 24, 2029. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MARYVILLE WATER PLANT |
|---|---|
| Permittee as filed | People Service Inc |
| NPDES ID | MOG640142 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 1, 2024 |
| Expiration date | February 24, 2029 |
| Address | Maryville, MO 64468 |
| Receiving water | Tributary to One Hundred and Two R. |
| Subwatershed | Thill Branch-One Hundred and Two River (HUC 102400130304) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 21Pollutants on file
- 21Under a numeric limit
- 5With a violation of any kind
- 1With 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 |
|---|---|---|---|---|---|
| Chlorine, total residual | 2 | 22 | 20 | June 30, 2025 | 3,789% over the limit |
| Solids, settleable | 2 | 4 | 0 | ||
| pH | 3 | 2 | 0 | ||
| Phosphorus, total [as P] | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Total production - mass | 2 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 2 | 0 | 0 | ||
| Sodium, total [as Na] | 2 | 0 | 0 | ||
| Chloride [as Cl] | 2 | 0 | 0 | ||
| Arsenic, total [as As] | 2 | 0 | 0 | ||
| Cadmium, total [as Cd] | 2 | 0 | 0 | ||
| Chromium, total [as Cr] | 2 | 0 | 0 | ||
| Copper, total [as Cu] | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Molybdenum, total [as Mo] | 2 | 0 | 0 | ||
| Nickel, total [as Ni] | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 2 | 0 | 0 | ||
| Aluminum, total [as Al] | 2 | 0 | 0 | ||
| Selenium, total [as Se] | 2 | 0 | 0 | ||
| Mercury, total [as Hg] | 2 | 0 | 0 | ||
| Report due [yrmoda] | 1 | 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 |
|---|---|---|
| September 23, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| April 15, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| July 18, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| March 11, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| October 22, 2018 | 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.
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 MOG640142 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.