Clean Water Act discharge permit · NPDES SCG360001

COLUMBIA HYDROELECTRIC PROJECT, Columbia, SC: NPDES SCG360001 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
6Pollutants under a numeric limit
0Pollutants with an effluent exceedance

COLUMBIA HYDROELECTRIC PROJECT, held by COLUMBIA CITY OF, holds NPDES permit SCG360001. EPA’s file records it issued May 15, 2015 and expiring June 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 filed	COLUMBIA HYDROELECTRIC PROJECT
Permittee as filed	COLUMBIA CITY OF
NPDES ID	SCG360001
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	May 15, 2015
Expiration date	June 30, 2020
Issuing agency	State
Address	Columbia, SC 29201
Receiving water impaired	303(D) Listed
Subwatershed	Upper Congaree River (HUC 030501100301)
NAICS	221111 – Hydroelectric Power Generation
SIC	4911 – Electric Services
Other EPA IDs (FRS)	RCRA handler SCD982077265

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

6Pollutants on file
6Under a numeric limit
6With a violation of any kind
0With an effluent exceedance

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 measure	Limits	Violations, any kind
pH	10	120
Temperature, water deg. fahrenheit	8	96
Flow, in conduit or thru treatment plant	8	52
Oil & Grease	2	18
Oil and grease visual	1	9
Mercury, total [as Hg]	8	8

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES SCG360001.

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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES SCG360001.

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 SCG360001 there.

Nearby on the register

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

This public-records page covers NPDES permit SCG360001 for the COLUMBIA HYDROELECTRIC PROJECT in Columbia, SC, held by COLUMBIA CITY OF, with its status listed as administratively continued and its discharger class as Minor. The page reports 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, and it cites EPA's permit file as issued May 15, 2015 and expiring June 30, 2020.