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Clean Water Act discharge permit · NPDES LA0020559

RAYVILLE WWTF, Rayville, LA: NPDES LA0020559 discharge permit, effluent exceedances, inspections, penalties

RAYVILLE WWTF, held by RAYVILLE, TOWN OF, holds NPDES permit LA0020559, which discharges to Seg 0809 Boeuf River. EPA’s file records it issued August 10, 2015 and expiring September 30, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedRAYVILLE WWTF
Permittee as filedRAYVILLE, TOWN OF
NPDES IDLA0020559
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedAugust 10, 2015
Expiration dateSeptember 30, 2020
AddressRayville, LA 71269
Receiving waterSEG 0809 BOEUF RIVER
Receiving water impaired303(D) Listed
SubwatershedClear Lake-Boeuf River (HUC 080500010802)
SIC4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
BOD, carbonaceous [5 day, 20 C]6277101July 31, 2026714% over the limit
Coliform, fecal general216465September 30, 202599,999% over the limit
Solids, total suspended323661June 30, 20263,913% over the limit
Nitrogen, ammonia total [as N]320745January 31, 2023150% over the limit
Mercury, total [as Hg]29224September 30, 202296,200% over the limit
Whole Effluent Toxicity [WET] - P. promelas24422April 30, 202699,999% over the limit
Whole Effluent Toxicity [WET] - C. dubia23816April 30, 202699,999% over the limit
Chlorine, total residual16114November 30, 20233,334% over the limit
Whole effluent toxicity07212June 30, 2013100% over the limit
pH2984May 31, 2026
Flow, in conduit or thru treatment plant21150
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia2740
Pass/Fail Static Renewal 7Day Chronic Pimephales promelas2740
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia2740
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas2740
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia2740
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas2740
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia2740
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas2740
Coef Of Var Static Renewal 7Day Chronic Pimephales promelas1640
Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia1630
Priority pollutants scan [yes/no]040

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

DateWhat EPA recordedAgency
April 30, 2025Permit Violations - Violation Specified in CommentST6
April 21, 2025Management Practice Violations - Improper Operation and MaintenanceST6
December 31, 2024Reporting Violations - Improper/ Incorrect ReportingST6
December 31, 2024Permit Violations - Violation Specified in CommentST6
December 31, 2024Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)ST6
December 31, 2023Monitoring Violations - Analysis not ConductedST6
December 31, 2023Reporting Violations - Improper/ Incorrect ReportingST6
December 31, 2023Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)ST6
August 31, 2023Monitoring Violations - Analysis not ConductedST6
August 31, 2023Reporting Violations - Improper/ Incorrect ReportingST6
July 31, 2023Monitoring Violations - Improper Analysis or Lab ErrorST6
August 31, 2022Management Practice Violations - Improper Operation and MaintenanceST6
August 31, 2022Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
December 31, 2020Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)ST6
August 19, 2020Management Practice Violations - Improper Operation and MaintenanceST6
August 19, 2020Monitoring Violations - Improper Analysis or Lab ErrorST6
August 19, 2020Reporting Violations - Improper/ Incorrect ReportingST6
August 19, 2020Reporting Violations - Failure to Submit DMRsST6
April 7, 2020WW SSO - Discharge to WatersST6
April 7, 2020WW SSO - Improper Operation and MaintenanceST6
April 7, 2020Failure to submit noncompliance report - SSO discharge [40 CFR 122.41(l)(7)]ST6
August 30, 2018Management Practice Violations - Improper Operation and MaintenanceST6
March 31, 2018Reporting Violations - Late Submittal of DMRsST6
December 31, 2017Permit Violations - Violation Specified in CommentST6
May 25, 2017WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMPST6
January 31, 2017Permit Violations - Violation Specified in CommentST6

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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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 LA0020559 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES LA0020559 for the RAYVILLE WWTF in Rayville, LA, held by RAYVILLE, TOWN OF, and discharging to Seg 0809 Boeuf River. The permit is listed as administratively continued, with a Major Discharger class, 20 pollutants under a numeric limit, and 10 pollutants with an effluent exceedance.