Clean Water Act discharge permit · NPDES LA0032328
HAMMOND, CITY OF- SOUTH SLOUGH WETLAND WASTEWATER ASSIMILATION PROJECT, Hammond, LA: NPDES LA0032328 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 28Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
HAMMOND, CITY OF- SOUTH SLOUGH WETLAND WASTEWATER ASSIMILATION PROJECT, held by City of Hammond- South Slough Wetland Wastewater Assimilation Project, holds NPDES permit LA0032328, which discharges to Natalabany R Tickfaw R L Maurepas. EPA’s file records it issued July 5, 2010 and expiring July 31, 2015. 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 | HAMMOND, CITY OF- SOUTH SLOUGH WETLAND WASTEWATER ASSIMILATION PROJECT |
|---|---|
| Permittee as filed | City of Hammond- South Slough Wetland Wastewater Assimilation Project |
| NPDES ID | LA0032328 |
| 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 | July 5, 2010 |
| Expiration date | July 31, 2015 |
| Address | Hammond, LA 70404 |
| Receiving water | NATALABANY R TICKFAW R L MAUREPAS |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Ponchatoula Creek (HUC 080702030305) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 36Pollutants on file
- 28Under a numeric limit
- 25With 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 |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 3 | 236 | 222 | May 31, 2026 | 1,069% over the limit |
| Zinc, total [as Zn] | 2 | 86 | 81 | July 31, 2021 | 656% over the limit |
| Mercury, total [as Hg] | 2 | 77 | 67 | November 30, 2021 | 99,999% over the limit |
| Solids, total suspended | 3 | 68 | 61 | March 31, 2024 | 99,999% over the limit |
| Copper, total [as Cu] | 2 | 57 | 50 | September 30, 2023 | 1,464% over the limit |
| Coliform, fecal general | 2 | 54 | 49 | February 28, 2026 | 99,999% over the limit |
| Chlorine, total residual | 2 | 17 | 15 | November 30, 2023 | 1,300% over the limit |
| pH | 2 | 4 | 2 | January 31, 2015 | |
| Nitrogen, total [as N] | 3 | 9 | 0 | ||
| Phosphorus, total [as P] | 3 | 9 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 5 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 2 | 5 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 3 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 2 | 3 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 3 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 3 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 3 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 0 | 3 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 0 | 3 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 2 | 1 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 2 | 1 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 0 | 1 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 1 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 0 | 1 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 0 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 4 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 4 | 0 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 4 | 0 | 0 | ||
| Magnesium, total [as Mg] | 3 | 0 | 0 | ||
| Cadmium, total [as Cd] | 3 | 0 | 0 | ||
| Chromium, total [as Cr] | 3 | 0 | 0 | ||
| Iron, total [as Fe] | 3 | 0 | 0 | ||
| Lead, total [as Pb] | 3 | 0 | 0 | ||
| Nickel, total [as Ni] | 3 | 0 | 0 | ||
| Silver, total [as Ag] | 3 | 0 | 0 | ||
| Selenium, total [as Se] | 3 | 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
- 26Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 24, 2025 | WW SSO - Discharge to Waters | ST6 |
| September 24, 2025 | WW SSO - Improper Operation and Maintenance | ST6 |
| August 17, 2025 | WW SSO - Discharge to Waters | ST6 |
| August 17, 2025 | WW SSO - Improper Operation and Maintenance | ST6 |
| December 31, 2024 | Effluent Violations - Numeric effluent violation | ST6 |
| July 31, 2024 | WW SSO - Discharge to Waters | ST6 |
| July 31, 2024 | WW SSO - Improper Operation and Maintenance | ST6 |
| March 11, 2024 | WW SSO - Discharge to Waters | ST6 |
| March 11, 2024 | WW SSO - Improper Operation and Maintenance | ST6 |
| December 6, 2023 | WW SSO - Discharge to Waters | ST6 |
| December 6, 2023 | WW SSO - Improper Operation and Maintenance | ST6 |
| December 31, 2021 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| December 31, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
| September 30, 2021 | WW SSO - Discharge to Waters | ST6 |
| September 30, 2021 | WW SSO - Improper Operation and Maintenance | ST6 |
| September 13, 2021 | WW SSO - Discharge to Waters | ST6 |
| September 1, 2021 | WW SSO - Improper Operation and Maintenance | ST6 |
| February 3, 2021 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| September 30, 2020 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| May 8, 2020 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| December 31, 2019 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| May 31, 2019 | WW SSO - Discharge to Waters | ST6 |
| May 31, 2019 | WW SSO - Improper Operation and Maintenance | ST6 |
| May 9, 2019 | Reporting Violations - Failure to submit required report (non-DMR non-pretreatment) | ST6 |
| February 19, 2019 | Monitoring Violations - Analysis not Conducted | ST6 |
| December 31, 2018 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, LA0032328.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 LA0032328 there.
Nearby on the register
- Discharge permits in Hammond
- Every permit record in Hammond, A to Z
- Discharge permits in Louisiana
- Every permit record in Louisiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.