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Clean Water Act discharge permit · NPDES NCC252490

NSC HOLDINGS, LLC - LKN MECHANICAL, Clayton, NC: NPDES NCC252490 discharge permit, effluent exceedances, inspections, penalties

NSC HOLDINGS, LLC - LKN MECHANICAL, held by NSC Holdings, LLC, holds NPDES permit NCC252490. EPA’s file records it issued August 20, 2025 and expiring March 31, 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 NSC HOLDINGS, LLC - LKN MECHANICAL: its NPDES ID, its permit type and status, its dates, its address in Clayton, North Carolina. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES NCC252490.

Identity

Facility as filedNSC HOLDINGS, LLC - LKN MECHANICAL
Permittee as filedNSC Holdings, LLC
NPDES IDNCC252490
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 20, 2025
Expiration dateMarch 31, 2029
AddressClayton, NC 27520
SubwatershedLittle Creek (HUC 030202011005)

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 NCC252490.

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 NCC252490.

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 NCC252490 there.

Nearby on the register

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

What this page shows

NSC HOLDINGS, LLC - LKN MECHANICAL is among 135 general permit coverages in Clayton, and 0.7% carry a violation on file. The Little Creek subwatershed (HUC 030202011005) counts 45 NPDES permits, this one included.