Clean Water Act discharge permit · NPDES LA0059951
WALKER CITY OF - WALKER WASTEWATER TREATMENT PLANT, Walker, LA: NPDES LA0059951 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 30Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
WALKER CITY OF - WALKER WASTEWATER TREATMENT PLANT, held by Town of Walker, holds NPDES permit LA0059951, which discharges to Taylor Cr-Middle Colyell Ck-Amite R. EPA’s file records it issued September 18, 2018 and expiring September 30, 2023. 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 | WALKER CITY OF - WALKER WASTEWATER TREATMENT PLANT |
|---|---|
| Permittee as filed | Town of Walker |
| NPDES ID | LA0059951 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | September 18, 2018 |
| Expiration date | September 30, 2023 |
| Address | Walker, LA 70785 |
| Receiving water | TAYLOR CR-MIDDLE COLYELL CK-AMITE R |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Middle Colyell Creek-Colyell Creek (HUC 080702020703) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 31Pollutants on file
- 30Under a numeric limit
- 22With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 2 | 99 | 87 | May 31, 2026 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 3 | 55 | 44 | October 31, 2010 | 827% over the limit |
| Solids, total suspended | 3 | 35 | 23 | December 31, 2025 | 1,396% over the limit |
| Whole Effluent Toxicity [WET] - C. dubia | 2 | 16 | 16 | March 31, 2026 | 99,999% over the limit |
| Copper, total [as Cu] | 2 | 29 | 15 | March 31, 2011 | 1,730% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 28 | 10 | September 30, 2022 | 2,833% over the limit |
| Oxygen, dissolved [DO] | 1 | 7 | 6 | August 31, 2023 | 36% over the limit |
| Zinc, total [as Zn] | 2 | 21 | 5 | September 30, 2014 | 17,378% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 19 | 0 | ||
| pH | 2 | 14 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 14 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 2 | 14 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 14 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 14 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 14 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 14 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 14 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 14 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 1 | 14 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 1 | 14 | 0 | ||
| Nickel, total [as Ni] | 0 | 4 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 1 | 0 | ||
| Mercury, total [as Hg] | 8 | 0 | 0 | ||
| Nitrogen, total [as N] | 3 | 0 | 0 | ||
| Phosphorus, total [as P] | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 2 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 2 | 0 | 0 | ||
| WET, sublethal retest #1 | 2 | 0 | 0 | ||
| WET, sublethal retest #2 | 2 | 0 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 2 | 0 | 0 | ||
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | 2 | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0059951.
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 LA0059951 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.