Clean Water Act discharge permit · NPDES MO0138819
ELKHORN ELEMENTARY SCHOOL WWTF, Excelsior Springs, MO: NPDES MO0138819 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
ELKHORN ELEMENTARY SCHOOL WWTF, held by Excelsior Springs School District #40, holds NPDES permit MO0138819, which discharges to Tributary To W. Fk. Crooked R.. EPA’s file records it issued November 29, 2017 and expiring March 31, 2019. 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 | ELKHORN ELEMENTARY SCHOOL WWTF |
|---|---|
| Permittee as filed | Excelsior Springs School District #40 |
| NPDES ID | MO0138819 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 29, 2017 |
| Expiration date | March 31, 2019 |
| Address | Excelsior Springs, MO 64024 |
| Receiving water | Tributary to W. Fk. Crooked R. |
| Subwatershed | West Fork Crooked River (HUC 103001010706) |
| 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
- 9Pollutants on file
- 8Under a numeric limit
- 9With a violation of any kind
- 4With 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 | 2 | 51 | 3 | June 30, 2026 | 137% over the limit |
| BOD, 5-day, percent removal | 1 | 26 | 2 | December 31, 2019 | 134% over the limit |
| Solids, suspended percent removal | 1 | 26 | 2 | December 31, 2019 | 100% over the limit |
| E. coli | 0 | 6 | 2 | December 31, 2022 | 740% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 48 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 2 | 48 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 48 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 48 | 0 | ||
| pH | 1 | 36 | 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
- 15Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 12, 2026 | Permit Violations - Discharge Without a Valid Permit | ST6 |
| July 12, 2026 | Permit Violations - Unapproved Operation | ST6 |
| June 15, 2026 | Reporting Violations - Failure to Submit DMRs | ST6 |
| November 16, 2023 | Reporting Violations - Failure to Submit DMRs | ST6 |
| July 21, 2023 | Reporting Violations - Failure to Submit DMRs | ST6 |
| September 26, 2022 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| September 26, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| July 12, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| March 31, 2022 | Reporting Violations - Failure to Submit DMRs | ST6 |
| December 22, 2021 | Reporting Violations - Failure to Submit DMRs | ST6 |
| October 1, 2021 | Reporting Violations - Failure to Submit DMRs | ST6 |
| January 21, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
| January 21, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| January 21, 2020 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| June 25, 2018 | Reporting Violations - Failure to Submit DMRs | 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 MO0138819 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.