Velarion Records

Clean Water Act discharge permit · NPDES SC0039918

ALLENDALE WWTF, Allendale, SC: NPDES SC0039918 discharge permit, effluent exceedances, inspections, penalties

ALLENDALE WWTF, held by ALLENDALE TOWN OF, holds NPDES permit SC0039918. EPA’s file records it issued March 25, 2024 and expiring October 31, 2028. 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 filedALLENDALE WWTF
Permittee as filedALLENDALE TOWN OF
NPDES IDSC0039918
Permit statusEffective
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedMarch 25, 2024
Expiration dateOctober 31, 2028
Issuing agencyState
AddressAllendale, SC 29810
SubwatershedSmith Lake Creek-Savannah River (HUC 030601060905)
Program components on filePOTW, Pretreatment
NAICS221320 – Sewage Treatment Facilities
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
Solids, suspended percent removal13122March 31, 2026514% over the limit
Carbonaceous oxygen demand, % removal13018October 31, 2024191% over the limit
E. coli41410December 31, 202599,999% over the limit
Coliform, fecal general0206July 31, 2012800% over the limit
Nitrogen, ammonia total [as N]4415December 31, 201299,999% over the limit
Solids, total suspended4393August 31, 2011107% over the limit
pH2213June 30, 2025
Oxygen, dissolved [DO]1112May 31, 202655% over the limit
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia2102June 30, 2024212% over the limit
BOD, carbonaceous [5 day, 20 C]4371February 28, 201099,999% over the limit
Chlorine, total residual4231October 31, 201816% over the limit
Oxygen demand, ultimate4211June 30, 202322% over the limit
Nitrogen, total [as N]4360
Phosphorus, total [as P]4360
Flow, in conduit or thru treatment plant2190
Mercury, total [as Hg]0120
Lead, total [as Pb]070
%Mortality 7Day Chronic Ceriodaphnia dubia040
%Repro Reduc Static Renewal7D Chronic Ceriodaphnia dubia040
LC50 Static 48Hr Acute Ceriodaphnia dubia110
IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia110

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
July 14, 2025Pretreatment - IU Violation of Pretreatment StandardsST6
June 21, 2024Management Practice Violations - Improper Operation and MaintenanceST6
June 21, 2024Permit Violations - Violation Specified in CommentST6
June 16, 2023Permit Violations - CWA §308 Failure to submit required permit application informationST6
June 16, 2023Management Practice Violations - Improper Operation and MaintenanceST6
March 28, 2023Pretreatment - Failure to Conduct InspectionsST6
October 26, 2021Management Practice Violations - Improper Operation and MaintenanceST6
October 26, 2021Permit Violations - Violation Specified in CommentST6
October 21, 2021Management Practice Violations - Improper Operation and MaintenanceST6
October 19, 2021Monitoring Violations - Invalid/Unrepresentative SampleST6
October 19, 2021Management Practice Violations - Improper Operation and MaintenanceST6
September 17, 2021Permit Violations - Violation Specified in CommentST6
September 17, 2021Monitoring Violations - Invalid/Unrepresentative SampleST6
September 17, 2021Management Practice Violations - Improper Operation and MaintenanceST6
May 16, 2019Management Practice Violations - Improper Operation and MaintenanceST6
May 16, 2019Permit Violations - Violation Specified in CommentST6
May 13, 2019Management Practice Violations - Improper Operation and MaintenanceST6
May 13, 2019Management Practice Violations - Failure to Maintain RecordsST6

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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Nearby on the register

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

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