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Clean Water Act discharge permit · NPDES SC0025721

CALHOUN FALLS SAWNEY CREEK WWTP, Calhoun Falls, SC: NPDES SC0025721 discharge permit, effluent exceedances, inspections, penalties

CALHOUN FALLS SAWNEY CREEK WWTP, held by CALHOUN FALLS, TOWN OF, holds NPDES permit SC0025721, which discharges to Sawney Creek To Little River. EPA’s file records it issued June 11, 2008 and expiring June 30, 2013. 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 filedCALHOUN FALLS SAWNEY CREEK WWTP
Permittee as filedCALHOUN FALLS, TOWN OF
NPDES IDSC0025721
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
IssuedJune 11, 2008
Expiration dateJune 30, 2013
AddressCalhoun Falls, SC 29628
Receiving waterSAWNEY CREEK TO LITTLE RIVER
SubwatershedSawney Creek (HUC 030601030509)

Cited to the EPA ICIS-NPDES permit file (ECHO 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]1610173May 31, 2026487% over the limit
Di[2-ethylhexyl] phthalate [DEHP]84719January 31, 2018237,738% over the limit
E. coli03515August 31, 202599,999% over the limit
BOD, 5-day, 20 deg. C85814April 30, 202281% over the limit
%Effect Static Renewal 7 Day Chronic Ceriodaphnia dubia22412January 31, 2020300% over the limit
Chlorine, total residual83610March 31, 20262,268% over the limit
BOD, 5-day, percent removal2187April 30, 202599,999% over the limit
Solids, suspended percent removal2143January 31, 2026153% over the limit
Coliform, fecal general4113February 29, 20041,228% over the limit
Flow, in conduit or thru treatment plant4142April 30, 200427% over the limit
Solids, total suspended8440
pH4140
Copper, total [as Cu]4140
Nitrogen, total [as N]4100
Phosphorus, total [as P]480
Oxygen, dissolved [DO]270
%Mortality 7Day Chronic Ceriodaphnia dubia260
%Repro Reduc Static Renewal7D Chronic Ceriodaphnia dubia260
Lead, total [as Pb]020

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
June 26, 2024Permit Violations - Violation Specified in CommentST6
June 26, 2024Management Practice Violations - Improper Operation and MaintenanceST6
June 26, 2024Effluent Violations - Numeric effluent violationST6
September 14, 2023Management Practice Violations - Improper Operation and MaintenanceST6
September 14, 2023Permit Violations - Violation Specified in CommentST6
January 12, 2023Management Practice Violations - Improper Operation and MaintenanceST6
September 26, 2022Management Practice Violations - Improper Operation and MaintenanceST6
September 26, 2022Permit Violations - Violation Specified in CommentST6
August 17, 2021Management Practice Violations - Laboratory Not CertifiedST6
August 17, 2021Monitoring Violations - Improper Analysis or Lab ErrorST6
August 17, 2021Management Practice Violations - Improper Operation and MaintenanceST6
August 17, 2021Permit Violations - Violation Specified in CommentST6
August 16, 2021Management Practice Violations - Failure to Maintain RecordsST6
August 16, 2021Management Practice Violations - Failure to Conduct InspectionsST6
August 16, 2021Permit Violations - Violation Specified in CommentST6
August 16, 2021Reporting Violations - Improper/ Incorrect ReportingST6
June 8, 2020Management Practice Violations - Failure to Maintain RecordsST6
June 8, 2020Management Practice Violations - Inflow/Infiltration (I/I)ST6
June 8, 2020Monitoring Violations - Invalid/Unrepresentative SampleST6
June 8, 2020Monitoring Violations - Improper Analysis or Lab ErrorST6
June 8, 2020Management Practice Violations - Improper Operation and MaintenanceST6
June 8, 2020Permit Violations - Violation Specified in CommentST6
March 26, 2019Management Practice Violations - Improper Operation and MaintenanceST6
March 26, 2019Permit Violations - Violation Specified in CommentST6
March 26, 2019Monitoring Violations - Improper Analysis or Lab ErrorST6
March 26, 2019Management Practice Violations - Failure to Maintain RecordsST6
March 26, 2019Monitoring Violations - Invalid/Unrepresentative SampleST6
March 26, 2019Management Practice Violations - Best Management Practice DeficienciesST6
December 19, 2018Management Practice Violations - Improper Operation and MaintenanceST6
December 19, 2018Management Practice Violations - Best Management Practice DeficienciesST6
December 19, 2018Management Practice Violations - Inflow/Infiltration (I/I)ST6
November 15, 2018Management Practice Violations - Failure to Maintain RecordsST6
November 15, 2018Management Practice Violations - Inflow/Infiltration (I/I)ST6
November 15, 2018Monitoring Violations - Invalid/Unrepresentative SampleST6
November 15, 2018Management Practice Violations - Improper Operation and MaintenanceST6
November 15, 2018Management Practice Violations - Best Management Practice DeficienciesST6
November 15, 2018Permit Violations - Violation Specified in CommentST6
June 19, 2017Management Practice Violations - Improper Operation and MaintenanceST6
June 19, 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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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 SC0025721 there.

Nearby on the register

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