NPDES LA0068730 · Clean Water Act
MAGNOLIA WATER UTILITY OPERATING CO., LLC- GREENLEAVES, Mandeville, LA: NPDES LA0068730 discharge permit, effluent exceedances, inspections, penalties
MAGNOLIA WATER UTILITY OPERATING CO., LLC- GREENLEAVES, Mandeville, Louisiana: Individual permit LA0068730, held by MAGNOLIA WATER UTILITY OPERATING CO., LLC; Administratively continued; issued September 18, 2018, term to September 30, 2023; discharges to Bayou Chinchuba.
5 of the 33 pollutants listed for NPDES LA0068730 have no violation or effluent exceedance.
- Nitrogen, ammonia total [as N]: 3 limits, 135 violations of any kind, 75 effluent exceedances, latest April 30, 2026, largest 450% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 3 limits, 101 violations of any kind, 34 effluent exceedances, latest August 31, 2025, largest 547% over the limit.
- Coliform, fecal general: 3 limits, 75 violations of any kind, 25 effluent exceedances, latest February 28, 2026, largest 99,999% over the limit.
- Cyanide, total [as CN]: 4 limits, 38 violations of any kind, 23 effluent exceedances, latest December 31, 2025, largest 190% over the limit.
- Chlorine, total residual: 1 limit, 49 violations of any kind, 21 effluent exceedances, latest August 31, 2025, largest 2,147,483,650% over the limit.
- Copper, total [as Cu]: 4 limits, 32 violations of any kind, 18 effluent exceedances, latest September 30, 2023, largest 727% over the limit.
- Zinc, total [as Zn]: 0 limits, 26 violations of any kind, 16 effluent exceedances, latest March 31, 2017, largest 1,233% over the limit.
- Solids, total suspended: 4 limits, 78 violations of any kind, 10 effluent exceedances, latest August 31, 2025, largest 370% over the limit.
- Oxygen, dissolved [DO]: 1 limit, 35 violations of any kind, 9 effluent exceedances, latest August 31, 2016, largest 64% over the limit.
- Mercury, total [as Hg]: 0 limits, 6 violations of any kind, 2 effluent exceedances, latest September 30, 2016, largest 3,619% over the limit.
- Whole Effluent Toxicity [WET] - C. dubia: 0 limits, 2 violations of any kind, 2 effluent exceedances, latest March 31, 2026, largest 68% over the limit.
- pH: 4 limits, 43 violations of any kind, 1 effluent exceedance, latest February 28, 2018.
- Flow, in conduit or thru treatment plant: 3 limits, 41 violations of any kind.
- Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 8 violations of any kind.
- Pass/Fail Static Renewal 7Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 8 violations of any kind.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 8 violations of any kind.
- NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 8 violations of any kind.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas: 2 limits, 8 violations of any kind.
- Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia: 1 limit, 6 violations of any kind.
- Coef Of Var Static Renewal 7Day Chronic Pimephales promelas: 1 limit, 6 violations of any kind.
- Dibromochloromethane: 0 limits, 6 violations of any kind.
- WET, sublethal retest #1: 4 limits, 4 violations of any kind.
- Nitrogen, total [as N]: 3 limits, 3 violations of any kind.
- Phosphorus, total [as P]: 3 limits, 3 violations of any kind.
- BOD, 5-day, 20 deg. C: 1 limit, 1 violation of any kind.
- Whole effluent toxicity - retest #1: 4 limits.
- Whole effluent toxicity - retest #2: 4 limits.
- WET, sublethal retest #2: 4 limits.
- Whole Effluent Toxicity - Retest #3: 4 limits.
- Whole Effluent Toxicity, Sub-Lethal Retest #3: 4 limits.
- May 27, 2026: Letter of Violation/ Warning Letter (State).
- February 9, 2026: Phone Call/ EMAIL (State).
- October 28, 2018: WW SSO - Improper Operation and Maintenance (ST6).
- September 27, 2018: Permit Violations - Violation Specified in Comment (ST6).
- April 1, 2018: WW SSO - Improper Operation and Maintenance (ST6).
- April 1, 2018: Permit Violations - Violation Specified in Comment (ST6).
- September 1, 2017: Permit Violations - Failure to Submit Timely Permit Renewal Application (ST6).
Other permits held by MAGNOLIA WATER UTILITY OPERATING CO., LLC
- MAGNOLIA WATER UTILITY OPERATING CO., LLC- GREEN ACRES, Deridder: LA0039993, issued 2017-07-17
- MAGNOLIA WATER UTILITY OPERATING CO., LLC- EDEN ISLES, Slidell: LA0045446, issued 2018-09-25
- MAGNOLIA WATER UTILITY OPERATING COMPANY LLC - RESOLVE SYSTEMS WASTEWATER TREATM, Slidell: LA0050351, issued 2019-09-24
- MAGNOLIA WATER UTILITY OPERATING COMPANY LLC - MAGNOLIA HILLS SUBDIVISION, Carencro: LA0054500, issued 2019-09-24
- MAGNOLIA WATER UTILITY OPERATING COMPANY LLC - CAJUN ESTATES SUBDIVISION, Broussard: LA0062804, issued 2020-02-19
- MAGNOLIA WATER UTILITY OPERATING COMPANY LLC - CARENCRO VILLAGE, Carencro: LA0062812, issued 2020-02-19
- MAGNOLIA WATER UTILITY OPERATING COMPANY LLC - FLANDER'S GARDEN SUBDIVISION, Youngsville: LA0062847, issued 2019-08-29
- MAGNOLIA WATER UTILITY OPERATING COMPANY LLC - MAGNOLIA PARK SERVICE SUBDIVISION, Thibodaux: LA0066486, issued 2020-08-18
- MAGNOLIA WATER UTILITY OPERATING CO., LLC- LETRIOMPHE GOLF & COUNTRY CLUB, Broussard: LA0072265, issued 2016-02-01
- MAGNOLIA WATER UTILITY OPERATING CO., LLC- THE MEADOWS, Slidell: LA0073148, issued 2017-07-17
MAGNOLIA WATER UTILITY OPERATING CO., LLC- GREENLEAVES among its neighbors
13 discharge permits are in the Bayou Chinchuba subwatershed (HUC 080902010302); LA0068730 is one. Its county: 317, 12 major; LA0068730 is major permit.
Other permits in the Bayou Chinchuba subwatershed (HUC 080902010302)
- 4040 HIGHWAY 59 LLC - CAMPBELL CABINETS, Mandeville: LAG536896, minor, term to 2027-11-30
- 4040 HWY 59 LLC - CAMPBELL CABINETS, Mandeville: LAG536898, minor, term to 2027-11-30
- CONN ENERGY, INC., Mandeville: GMG290042, minor, term to 2017-09-30
- DENLEY BROWN CONTRACTORS, LLC - MANDEVILLE BYPASS-LA 1088 TO US 190, Mandeville: LAR10Q541, minor, term to 2028-09-24
- EXPLORE ENTERPRISES OF LA LLC, Mandeville: GMG290273, minor, term to 2012-09-30
- EXPLORE OFFSHORE LLC, Mandeville: GMG290295, minor, term to 2012-09-30
- GRANT CAMPBELL - KNIGHTS BASEBALL, Mandeville: LAG536924, minor, term to 2027-11-30
- LEGACY RESOURCES COMPANY, L.P., Mandeville: GMG290205, minor, term to 2012-09-30
- MICHAEL & CAROL MESA, Mandeville: LAG537116, minor, term to 2027-11-30
- RATCLIFF CONSTRUCTION CO., LLC - HERITAGE MANOR OF MANDEVILLE CONSTRUCTION, Mandeville: LAR10Q248, minor, term to 2026-01-13
Identity
| Facility | MAGNOLIA WATER UTILITY OPERATING CO., LLC- GREENLEAVES |
|---|---|
| Permittee | MAGNOLIA WATER UTILITY OPERATING CO., LLC |
| NPDES ID | LA0068730 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Major |
| Facility type | Non-POTW |
| Issued | September 18, 2018 |
| Expires | September 30, 2023 |
| Address | Mandeville, LA 70448 |
| Receiving water | Bayou Chinchuba |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Bayou Chinchuba (HUC 080902010302) |
| SIC | 4952 – Sewerage Systems |
NPDES LA0068730: effluent limits and exceedances
MAGNOLIA WATER UTILITY OPERATING CO., LLC- GREENLEAVES (NPDES LA0068730): 33 pollutants on file, 29 limited; 28 with a violation of any kind, 12 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 3 | 135 | 75 | April 30, 2026 | 450% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 3 | 101 | 34 | August 31, 2025 | 547% over the limit |
| Coliform, fecal general | 3 | 75 | 25 | February 28, 2026 | 99,999% over the limit |
| Cyanide, total [as CN] | 4 | 38 | 23 | December 31, 2025 | 190% over the limit |
| Chlorine, total residual | 1 | 49 | 21 | August 31, 2025 | 2,147,483,650% over the limit |
| Copper, total [as Cu] | 4 | 32 | 18 | September 30, 2023 | 727% over the limit |
| Zinc, total [as Zn] | 0 | 26 | 16 | March 31, 2017 | 1,233% over the limit |
| Solids, total suspended | 4 | 78 | 10 | August 31, 2025 | 370% over the limit |
| Oxygen, dissolved [DO] | 1 | 35 | 9 | August 31, 2016 | 64% over the limit |
| Mercury, total [as Hg] | 0 | 6 | 2 | September 30, 2016 | 3,619% over the limit |
| Whole Effluent Toxicity [WET] - C. dubia | 0 | 2 | 2 | March 31, 2026 | 68% over the limit |
| pH | 4 | 43 | 1 | February 28, 2018 | |
| Flow, in conduit or thru treatment plant | 3 | 41 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 8 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 8 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 8 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 8 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 8 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 1 | 6 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 1 | 6 | 0 | ||
| Dibromochloromethane | 0 | 6 | 0 | ||
| WET, sublethal retest #1 | 4 | 4 | 0 | ||
| Nitrogen, total [as N] | 3 | 3 | 0 | ||
| Phosphorus, total [as P] | 3 | 3 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 4 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 4 | 0 | 0 | ||
| WET, sublethal retest #2 | 4 | 0 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 4 | 0 | 0 | ||
| Whole Effluent Toxicity, Sub-Lethal Retest #3 | 4 | 0 | 0 |
NPDES LA0068730: inspections, violations and enforcement
NPDES LA0068730: 5 single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| October 28, 2018 | WW SSO - Improper Operation and Maintenance | ST6 |
| September 27, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
| April 1, 2018 | WW SSO - Improper Operation and Maintenance | ST6 |
| April 1, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
| September 1, 2017 | Permit Violations - Failure to Submit Timely Permit Renewal Application | ST6 |
NPDES LA0068730: 2 informal enforcement actions
| Date | What EPA recorded | Agency |
|---|---|---|
| May 27, 2026 | Letter of Violation/ Warning Letter | State |
| February 9, 2026 | Phone Call/ EMAIL | State |
NPDES LA0068730 (MAGNOLIA WATER UTILITY OPERATING CO., LLC- GREENLEAVES): no inspection and formal enforcement action on file.
Watch NPDES LA0068730
NPDES LA0068730: one email when its EPA record changes — $99/month.
Permits near NPDES LA0068730
NPDES LA0068730: 33 pollutant rows, 7 dated events; ICIS-NPDES download, loaded October 14, 2026.