Clean Water Act discharge permit · NPDES SCR10Z9WR

WIL-MO AIR ENTERPRISES SITE DEVELOPMENT, Rock Hill, SC: NPDES SCR10Z9WR discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

WIL-MO AIR ENTERPRISES SITE DEVELOPMENT, held by Thomas Ras Jr, Thomas Construction And Restoration, holds NPDES permit SCR10Z9WR. EPA’s file records it issued February 22, 2022 and expiring February 21, 2027. 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.

What the register holds for WIL-MO AIR ENTERPRISES SITE DEVELOPMENT: its NPDES ID, its permit type and status, its dates, its address in Rock Hill, South Carolina. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES SCR10Z9WR.

Identity

Facility as filed	WIL-MO AIR ENTERPRISES SITE DEVELOPMENT
Permittee as filed	Thomas Ras Jr, Thomas Construction And Restoration
NPDES ID	SCR10Z9WR
Permit status	Effective
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Program	Construction stormwater
Issued	February 22, 2022
Expiration date	February 21, 2027
Issuing agency	State
Address	Rock Hill, SC 29732
Subwatershed	Tools Fork (HUC 030501030401)

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

Effluent limits and exceedances

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

EPA’s limits and effluent violation files hold no pollutant row for NPDES SCR10Z9WR.

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 SCR10Z9WR.

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, SCR10Z9WR.

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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 SCR10Z9WR there.

Nearby on the register

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

This public-records page covers NPDES permit SCR10Z9WR, held by WIL-MO AIR ENTERPRISES SITE DEVELOPMENT in Rock Hill, South Carolina, under construction stormwater coverage, with a status of Effective and an issue date of February 22, 2022 and expiration date of February 21, 2027. The page lists a discharger class of Minor, 0 pollutants under a numeric limit, and 0 pollutants with an effluent exceedance.