Clean Water Act discharge permit · NPDES MO0048151
MILAN WWTP, Milan, MO: NPDES MO0048151 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
MILAN WWTP, held by City of Milan, holds NPDES permit MO0048151, which discharges to E. Fk. Locust Cr.. EPA’s file records it issued May 1, 2018 and expiring December 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MILAN WWTP |
|---|---|
| Permittee as filed | City of Milan |
| NPDES ID | MO0048151 |
| 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 | May 1, 2018 |
| Expiration date | December 31, 2022 |
| Address | Milan, MO 63556 |
| Receiving water | E. Fk. Locust Cr. |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | East Locust Creek (HUC 102801030603) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 19Pollutants on file
- 11Under a numeric limit
- 16With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 4 | 5 | 3 | January 31, 2014 | 364% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 34 | 0 | ||
| Temperature, water deg. centigrade | 0 | 34 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 34 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 33 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 32 | 0 | ||
| Ammonia [as N] + unionized ammonia | 0 | 32 | 0 | ||
| pH | 2 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 6 | 0 | ||
| Nitrogen, total [as N] | 4 | 2 | 0 | ||
| Phosphorus, total [as P] | 4 | 2 | 0 | ||
| Solids, total suspended | 2 | 2 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 2 | 0 | ||
| E. coli, colony forming units [CFU] | 0 | 2 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 0 | 1 | 0 | ||
| LC50 Static 48Hr Acute Pimephales promelas | 0 | 1 | 0 | ||
| E. coli | 2 | 0 | 0 | ||
| BOD, 5-day, percent removal | 1 | 0 | 0 | ||
| Solids, suspended percent removal | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 17, 2023 | WW SSO - Failure to report violation that may endanger public health 122.41(l)(7) | ST6 |
| May 17, 2023 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| May 17, 2023 | Permit Violations - Violation Specified in Comment | 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
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, MO0048151.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MO0048151 there.
Nearby on the register
- Discharge permits in Milan
- Every permit record in Milan, A to Z
- Discharge permits in Missouri
- Every permit record in Missouri, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.