Velarion Records
The Pay Desk is the free weekly executive pay briefing — one company at a time, every number traceable to a public filing.
You’ll confirm on The Pay Desk’s sign-up page.

Clean Water Act discharge permit · NPDES SCR10ZEE6

CHS TAXIWAY PAVEMENT EXPANSION, North Charleston, SC: NPDES SCR10ZEE6 discharge permit, effluent exceedances, inspections, penalties

CHS TAXIWAY PAVEMENT EXPANSION, held by Nathan Yokoyama, holds NPDES permit SCR10ZEE6. EPA’s file records it issued January 11, 2024 and expiring January 10, 2029. 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 CHS TAXIWAY PAVEMENT EXPANSION: its NPDES ID, its permit type and status, its dates, its address in North Charleston, South Carolina. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES SCR10ZEE6.

Identity

Facility as filedCHS TAXIWAY PAVEMENT EXPANSION
Permittee as filedNathan Yokoyama
NPDES IDSCR10ZEE6
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJanuary 11, 2024
Expiration dateJanuary 10, 2029
Issuing agencyState
AddressNorth Charleston, SC 29418
SubwatershedLower Ashley River (HUC 030502010605)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES SCR10ZEE6.

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 SCR10ZEE6.

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, SCR10ZEE6.

Start the watch

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 SCR10ZEE6 there.

Nearby on the register

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