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Clean Water Act discharge permit · NPDES SCR10ZJUN

METROPOLITAN WWTP THICKENING IMPROVEMENTS, Columbia, SC: NPDES SCR10ZJUN discharge permit, effluent exceedances, inspections, penalties

METROPOLITAN WWTP THICKENING IMPROVEMENTS, held by John Riggs, holds NPDES permit SCR10ZJUN. EPA’s file records it issued December 1, 2025 and expiring November 30, 2030. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

What the register holds for METROPOLITAN WWTP THICKENING IMPROVEMENTS: its NPDES ID, its permit type and status, its dates, its address in Columbia, South Carolina. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES SCR10ZJUN.

Identity

Facility as filedMETROPOLITAN WWTP THICKENING IMPROVEMENTS
Permittee as filedJohn Riggs
NPDES IDSCR10ZJUN
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedDecember 1, 2025
Expiration dateNovember 30, 2030
Issuing agencyState
AddressColumbia, SC 29201
SubwatershedLower Gills Creek-Congaree River (HUC 030501100203)
Other EPA IDs (FRS)RCRA handler SC0000057232; ICIS-AIR source SC00019000021

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES SCR10ZJUN.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES SCR10ZJUN.

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.

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, SCR10ZJUN.

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How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

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 SCR10ZJUN there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

The METROPOLITAN WWTP THICKENING IMPROVEMENTS permit is one of 686 storm water construction permits on EPA's NPDES register in Richland County, this one included. Of those 686, 0.1% have a violation on file, and 81.5% carry an earlier issue date than this permit. The permit sits among 80 NPDES permits in the Lower Gills Creek-Congaree River subwatershed, this one included, and records zero pollutants under a numeric limit and zero pollutants with an effluent exceedance.