Clean Water Act discharge permit · NPDES MOR80F047
MARSHALL MEMORIAL MUNICIPAL AIRPORT, Marshall, MO: NPDES MOR80F047 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
MARSHALL MEMORIAL MUNICIPAL AIRPORT, held by City of Marshall, holds NPDES permit MOR80F047, which discharges to Tributary To Salt Fk.. EPA’s file records it issued January 1, 2018 and expiring November 27, 2022. 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 | MARSHALL MEMORIAL MUNICIPAL AIRPORT |
|---|---|
| Permittee as filed | City of Marshall |
| NPDES ID | MOR80F047 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | January 1, 2018 |
| Expiration date | November 27, 2022 |
| Address | Marshall, MO 65340 |
| Receiving water | Tributary to Salt Fk. |
| Subwatershed | Dicks Branch-Salt Fork (HUC 103001040410) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 11Under a numeric limit
- 11With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 18 | 42 | 24 | March 31, 2026 | 551% over the limit |
| pH | 18 | 23 | 5 | February 28, 2023 | |
| Oxygen demand, chem. [high level] [COD] | 18 | 22 | 4 | February 28, 2023 | 11% over the limit |
| BOD, 5-day, 20 deg. C | 18 | 18 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 18 | 18 | 0 | ||
| Chloride [as Cl] | 18 | 18 | 0 | ||
| Flow, in conduit or thru treatment plant | 18 | 18 | 0 | ||
| Ammonia [as N] + unionized ammonia | 18 | 18 | 0 | ||
| Nitrogen, nitrate total [as NO3] | 18 | 18 | 0 | ||
| Ethylbenzene | 0 | 18 | 0 | ||
| Report due [yrmoda] | 1 | 1 | 0 | ||
| Ethylbenzene | 18 | 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 |
|---|---|---|
| April 29, 2026 | WW Storm Water Construction - Failure to develop any or adequate SWPPP/SWMP | ST6 |
| April 29, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| April 29, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| June 30, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| June 30, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MOR80F047.
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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 MOR80F047 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.