Clean Water Act discharge permit · NPDES MO0044172
LAMAR WWTF, Lamar, MO: NPDES MO0044172 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 20Pollutants under a numeric limit
- 12Pollutants with an effluent exceedance
LAMAR WWTF, held by City of Lamar, holds NPDES permit MO0044172, which discharges to Tributary To N. Fk. Spring R.. EPA’s file records it issued November 19, 2018 and expiring March 31, 2023. 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 | LAMAR WWTF |
|---|---|
| Permittee as filed | City of Lamar |
| NPDES ID | MO0044172 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | November 19, 2018 |
| Expiration date | March 31, 2023 |
| Address | Lamar, MO 64759 |
| Receiving water | Tributary to N. Fk. Spring R. |
| Subwatershed | Lamar Lake-North Fork Spring River (HUC 110702070206) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 23Pollutants on file
- 20Under a numeric limit
- 19With a violation of any kind
- 12With 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 |
|---|---|---|---|---|---|
| Zinc, total recoverable | 2 | 56 | 18 | March 31, 2026 | 402,253% over the limit |
| Ammonia [as N] + unionized ammonia | 0 | 12 | 12 | March 31, 2012 | 746% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 48 | 10 | June 30, 2026 | 292% over the limit |
| Copper, total recoverable | 2 | 46 | 9 | December 31, 2025 | 777% over the limit |
| Solids, total suspended | 2 | 9 | 7 | March 31, 2024 | 125% over the limit |
| Cyanide, free [amenable to chlorination] | 2 | 42 | 4 | April 30, 2012 | 200% over the limit |
| Coliform, fecal general | 0 | 4 | 4 | October 31, 2011 | 7,525% over the limit |
| Solids, suspended percent removal | 1 | 4 | 3 | March 31, 2024 | 160% over the limit |
| Oil and grease [soxhlet extr.] tot. | 2 | 4 | 2 | September 30, 2016 | 100% over the limit |
| BOD, 5-day, percent removal | 1 | 3 | 2 | March 31, 2020 | 280% over the limit |
| pH | 2 | 51 | 1 | September 30, 2020 | |
| BOD, 5-day, 20 deg. C | 2 | 3 | 1 | October 31, 2006 | 16% over the limit |
| Chromium, total recoverable | 0 | 36 | 0 | ||
| Nitrogen, total [as N] | 2 | 2 | 0 | ||
| Phosphorus, total [as P] | 2 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 2 | 0 | ||
| Iron, total recoverable | 2 | 2 | 0 | ||
| Chromium, hexavalent dissolved [as Cr] | 2 | 2 | 0 | ||
| Chromium, trivalent total recoverable | 2 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| E. coli | 2 | 0 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 1 | 0 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 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
- 10Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 31, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| October 5, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| October 5, 2022 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| October 5, 2022 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| July 19, 2022 | WW SSO - Failure to report violation that may endanger public health 122.41(l)(7) | ST6 |
| March 21, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| June 12, 2019 | Effluent Violations - Numeric effluent violation | ST6 |
| June 12, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
| June 12, 2019 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| June 12, 2019 | WW SSO - Failure to report violation that may endanger public health 122.41(l)(7) | 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 MO0044172 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.