Clean Water Act discharge permit · NPDES MO0101958
JEFFERSON COUNTY LIBRARY DISTRICT WWTF, High Ridge, MO: NPDES MO0101958 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
JEFFERSON COUNTY LIBRARY DISTRICT WWTF, held by Jefferson County Library, holds NPDES permit MO0101958, which discharges to Bear Cr.. EPA’s file records it issued August 31, 2012 and expiring August 31, 2017. 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 | JEFFERSON COUNTY LIBRARY DISTRICT WWTF |
|---|---|
| Permittee as filed | Jefferson County Library |
| NPDES ID | MO0101958 |
| 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 | August 31, 2012 |
| Expiration date | August 31, 2017 |
| Issuing agency | MODNR-Water Protection Program |
| Address | High Ridge, MO 63049 |
| Receiving water | Bear Cr. |
| Subwatershed | Heads Creek (HUC 071401040406) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 9Pollutants on file
- 7Under a numeric limit
- 9With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 2 | 44 | 28 | December 31, 2022 | 719% over the limit |
| Chlorine, total residual | 4 | 37 | 20 | July 31, 2012 | 4,900% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 23 | 13 | March 31, 2023 | 550% over the limit |
| Solids, total suspended | 2 | 28 | 12 | June 30, 2023 | 1,967% over the limit |
| E. coli | 4 | 18 | 2 | June 30, 2021 | 79,265% over the limit |
| pH | 2 | 18 | 2 | June 30, 2023 | |
| Oxygen, dissolved [DO] | 0 | 12 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 10 | 0 | ||
| Ammonia [as N] + unionized ammonia | 4 | 6 | 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
- 8Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| April 4, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| January 11, 2023 | Effluent Violations - Numeric effluent violation | ST6 |
| March 31, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| January 10, 2022 | Effluent Violations - Numeric effluent violation | ST6 |
| December 16, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| June 29, 2020 | Effluent Violations - Numeric effluent violation | ST6 |
| May 23, 2018 | Effluent Violations - Numeric effluent violation | ST6 |
| May 23, 2018 | Reporting Violations - Improper/ Incorrect Reporting | 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 MO0101958 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.