Clean Water Act discharge permit · NPDES MO0052141
DELTA WWTF, Delta, MO: NPDES MO0052141 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
DELTA WWTF, held by City of Delta, holds NPDES permit MO0052141, which discharges to Upper Whitewater Creek. EPA’s file records it issued April 10, 2019 and expiring June 30, 2021. 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 | DELTA WWTF |
|---|---|
| Permittee as filed | City of Delta |
| NPDES ID | MO0052141 |
| 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 | April 10, 2019 |
| Expiration date | June 30, 2021 |
| Address | Delta, MO 63730 |
| Receiving water | Upper Whitewater Creek |
| Subwatershed | Whitewater River-Little River (HUC 080202040601) |
| 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
- 11Pollutants on file
- 9Under a numeric limit
- 11With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Ammonia [as N] + unionized ammonia | 0 | 84 | 62 | September 30, 2018 | 586% over the limit |
| Nitrogen, ammonia total [as N] | 12 | 30 | 22 | October 31, 2025 | 303% over the limit |
| BOD, 5-day, percent removal | 2 | 24 | 22 | February 28, 2025 | 360% over the limit |
| Solids, total suspended | 8 | 95 | 16 | January 31, 2024 | 14,800% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 88 | 9 | January 31, 2024 | 56% over the limit |
| Solids, suspended percent removal | 2 | 10 | 8 | January 31, 2022 | 300% over the limit |
| E. coli | 2 | 9 | 5 | May 31, 2024 | 444% over the limit |
| pH | 2 | 64 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 52 | 0 | ||
| Flow, in conduit or thru treatment plant | 8 | 26 | 0 | ||
| Temperature, water deg. centigrade | 0 | 22 | 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
- 14Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 26, 2026 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| May 26, 2026 | Effluent Violations - Numeric effluent violation | ST6 |
| May 26, 2026 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| May 26, 2026 | Permit Violations - Violation Specified in Comment | ST6 |
| May 26, 2026 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| December 10, 2025 | Effluent Violations - Numeric effluent violation | ST6 |
| March 29, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| June 27, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| December 30, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| July 7, 2021 | Effluent Violations - Numeric effluent violation | ST6 |
| March 18, 2021 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| June 30, 2020 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| February 16, 2017 | Permit Violations - Violation Specified in Comment | ST6 |
| February 16, 2017 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | 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 MO0052141 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.