Velarion Records

Clean Water Act discharge permit · NPDES SC0026417

BLACKVILLE WWTF, Blackville, SC: NPDES SC0026417 discharge permit, effluent exceedances, inspections, penalties

BLACKVILLE WWTF holds NPDES permit SC0026417, which discharges to Windy Hill Ck-S Ford Edisto Rv. EPA’s file records it issued December 14, 2010 and expiring December 31, 2014. 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 filedBLACKVILLE WWTF
Permittee as filedBLACKVILLE WWTF
NPDES IDSC0026417
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedDecember 14, 2010
Expiration dateDecember 31, 2014
AddressBlackville, SC 29817
Receiving waterWINDY HILL CK-S FORD EDISTO RV
SubwatershedWindy Hill Creek (HUC 030502040305)
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
Nitrogen, ammonia total [as N]8310286April 30, 2026991% over the limit
E. coli06157June 30, 202699,999% over the limit
Chlorine, total residual48656November 30, 202512,054% over the limit
BOD, 5-day, 20 deg. C49244January 31, 20265,662% over the limit
Solids, suspended percent removal15240May 31, 20262,483% over the limit
BOD, 5-day, percent removal14734May 31, 20261,219% over the limit
Copper, total [as Cu]44325August 31, 2025130% over the limit
Di[2-ethylhexyl] phthalate [DEHP]43618December 31, 201766,567% over the limit
Oxygen, dissolved [DO]12614June 30, 202693% over the limit
Coliform, fecal general43210August 31, 201599,999% over the limit
Solids, total suspended4579August 31, 202588% over the limit
Mercury, total [as Hg]8199August 31, 202599,900% over the limit
Cadmium, total [as Cd]4297October 31, 20236,567% over the limit
Lead, total [as Pb]4244February 28, 20092,900% over the limit
Zinc, total [as Zn]4253February 28, 2010112% over the limit
pH2271October 31, 2012
Nitrogen, total [as N]4580
Phosphorus, total [as P]4540
Flow, in conduit or thru treatment plant2240
Chromium, hexavalent tot recoverable0100
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia280
%Mortality 7Day Chronic Ceriodaphnia dubia220
%Repro Reduc Static Renewal7D Chronic Ceriodaphnia dubia220

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
October 21, 2025Management Practice Violations - Improper Operation and MaintenanceST6
October 21, 2025Management Practice Violations - Failure to Maintain RecordsST6
October 21, 2025Permit Violations - Violation Specified in CommentST6
October 20, 2025Management Practice Violations - Improper Operation and MaintenanceST6
October 16, 2025Management Practice Violations - Improper Operation and MaintenanceST6
October 14, 2024Effluent Violations - Numeric effluent violationST6
September 24, 2024Management Practice Violations - Improper Operation and MaintenanceST6
September 13, 2024Permit Violations - Unapproved OperationST6
August 27, 2024Management Practice Violations - Failure to Conduct InspectionsST6
August 27, 2024Permit Violations - Violation Specified in CommentST6
August 16, 2024Permit Violations - Violation Specified in CommentST6
August 15, 2024Monitoring Violations - Invalid/Unrepresentative SampleST6
May 9, 2023Permit Violations - Violation Specified in CommentST6
May 9, 2023Management Practice Violations - Improper Operation and MaintenanceST6
May 9, 2023Management Practice Violations - Laboratory Not CertifiedST6
May 13, 2019Management Practice Violations - Improper Operation and MaintenanceST6
May 13, 2019Permit Violations - Violation Specified in CommentST6
May 13, 2019Management Practice Violations - No Licensed/Certified OperatorST6
May 13, 2019Management Practice Violations - Failure to Conduct InspectionsST6
May 13, 2019Monitoring Violations - Improper Analysis or Lab ErrorST6
May 13, 2019Monitoring Violations - Invalid/Unrepresentative SampleST6
May 13, 2019Reporting Violations - Improper/ Incorrect ReportingST6
May 13, 2019Management Practice Violations - Violation of a milestone in an orderST6

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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