Clean Water Act discharge permit · NPDES LA0067784
LIVINGSTON PARISH SEWER DISTRICT #1 & #2 - LOCKHART POTW, Denham Springs, LA: NPDES LA0067784 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 27Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
LIVINGSTON PARISH SEWER DISTRICT #1 & #2 - LOCKHART POTW, held by Livingston Parish Sewer District No. 2, holds NPDES permit LA0067784, which discharges to Colton Creek/Amite River. EPA’s file records it issued January 3, 2024 and expiring January 31, 2029. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | LIVINGSTON PARISH SEWER DISTRICT #1 & #2 - LOCKHART POTW |
|---|---|
| Permittee as filed | Livingston Parish Sewer District No. 2 |
| NPDES ID | LA0067784 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | January 3, 2024 |
| Expiration date | January 31, 2029 |
| Address | Denham Springs, LA 70754 |
| Receiving water | COLTON CREEK/AMITE RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Beaver Creek-Amite River (HUC 080702020902) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 32Pollutants on file
- 27Under a numeric limit
- 24With a violation of any kind
- 10With 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 | 6 | 432 | 247 | November 30, 2019 | 930% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 298 | 196 | December 31, 2004 | 1,500% over the limit |
| Coliform, fecal general | 4 | 230 | 116 | May 31, 2026 | 99,999% over the limit |
| Nitrogen, ammonia total [as N] | 12 | 281 | 88 | September 30, 2024 | 284% over the limit |
| Chlorine, total residual | 1 | 81 | 52 | June 30, 2023 | 233% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 6 | 107 | 28 | July 31, 2026 | 477% over the limit |
| Whole Effluent Toxicity [WET] - C. dubia | 2 | 22 | 18 | March 31, 2026 | 99,999% over the limit |
| Whole Effluent Toxicity [WET] - P. promelas | 0 | 14 | 14 | December 31, 2021 | 1% over the limit |
| pH | 4 | 129 | 13 | January 31, 2025 | |
| Copper, total [as Cu] | 0 | 12 | 6 | June 30, 2023 | 66% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 119 | 0 | ||
| Phosphorus, total [as P] | 6 | 39 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 14 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 14 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 14 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 14 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 2 | 12 | 0 | ||
| Zinc, total [as Zn] | 0 | 10 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 4 | 6 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 4 | 6 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 6 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 6 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 2 | 6 | 0 | ||
| Endosulfan, total | 0 | 4 | 0 | ||
| Nitrogen, total [as N] | 6 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 6 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 6 | 0 | 0 | ||
| WET, sublethal retest #1 | 6 | 0 | 0 | ||
| WET, sublethal retest #2 | 6 | 0 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 6 | 0 | 0 | ||
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | 6 | 0 | 0 | ||
| Lead, total [as Pb] | 4 | 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
- 23Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 27, 2025 | Management Practice Violations - Violation of a milestone in an order | ST6 |
| February 12, 2025 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| February 12, 2025 | Effluent Violations - Narrative Effluent Violation | ST6 |
| May 16, 2024 | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | ST6 |
| May 16, 2024 | Failure to properly operate and maintain the sanitary sewer system [40 CFR 122.41(e)] | ST6 |
| July 28, 2021 | Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)] | ST6 |
| July 28, 2021 | Failure to properly operate and maintain the sanitary sewer system [40 CFR 122.41(e)] | ST6 |
| October 31, 2020 | WW SSO - Discharge to Waters | ST6 |
| October 31, 2020 | WW SSO - Improper Operation and Maintenance | ST6 |
| August 17, 2020 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| August 17, 2020 | Management Practice Violations - Failure to Maintain Records | ST6 |
| August 17, 2020 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
| May 14, 2019 | Effluent Violations - Unauthorized Discharge | ST6 |
| April 30, 2019 | WW SSO - Improper Operation and Maintenance | ST6 |
| April 30, 2019 | WW SSO - Discharge to Waters | ST6 |
| August 28, 2018 | Effluent Violations - Unauthorized Discharge | ST6 |
| July 24, 2018 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| July 24, 2018 | Monitoring Violations - Failure to Monitor for Non-Toxicity Requirements | ST6 |
| March 31, 2018 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| December 31, 2017 | WW SSO - Improper Operation and Maintenance | ST6 |
| December 31, 2017 | WW SSO - Discharge to Waters | ST6 |
| May 11, 2017 | WW SSO - Improper Operation and Maintenance | ST6 |
| January 7, 2017 | WW SSO - Improper Operation and Maintenance | 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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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.