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Clean Water Act discharge permit · NPDES SC0049026

ASCO, L.P., Aiken, SC: NPDES SC0049026 discharge permit, effluent exceedances, inspections, penalties

ASCO, L.P., held by ASCO LP, holds NPDES permit SC0049026. EPA’s file records it issued July 25, 2018 and expiring August 31, 2020. 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 filedASCO, L.P.
Permittee as filedASCO LP
NPDES IDSC0049026
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJuly 25, 2018
Expiration dateAugust 31, 2020
Issuing agencyState
AddressAiken, SC 29801
SubwatershedMiddle Shaw Creek (HUC 030502040107)

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
pH264September 30, 2020
Tetrachloroethylene220
1,1,2-Trichloroethane220
Flow, in conduit or thru treatment plant220
BOD, 5-day, 20 deg. C200
Solids, total suspended200

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
May 1, 2026Permit Violations - Violation Specified in CommentST6
July 29, 2020Permit Violations - Violation Specified in CommentST6
July 28, 2020Management Practice Violations - Improper Operation and MaintenanceST6

Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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.

Watch this permit

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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 SC0049026 there.

Nearby on the register

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