Clean Water Act discharge permit · NPDES ILR10ZHBG

WATERLINK EXTENSION CONTRACT TW-6/25 SECTION 3A & 3B, Oswefo, IL: NPDES ILR10ZHBG discharge permit, effluent exceedances, inspections, penalties

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

WATERLINK EXTENSION CONTRACT TW-6/25 SECTION 3A & 3B, held by Benchmark Construction, holds NPDES permit ILR10ZHBG. EPA’s file records it issued August 20, 2026 and expiring August 31, 2028. 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 WATERLINK EXTENSION CONTRACT TW-6/25 SECTION 3A & 3B: its NPDES ID, its permit type and status, its dates, its address in Oswefo, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZHBG.

Identity

Facility as filed	WATERLINK EXTENSION CONTRACT TW-6/25 SECTION 3A & 3B
Permittee as filed	Benchmark Construction
NPDES ID	ILR10ZHBG
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	August 20, 2026
Expiration date	August 31, 2028
Issuing agency	IEPA
Address	Oswefo, IL 60538

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 ILR10ZHBG.

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 ILR10ZHBG.

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 ILR10ZHBG there.

Nearby on the register

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

This public-records page covers NPDES permit ILR10ZHBG, held by Benchmark Construction for WATERLINK EXTENSION CONTRACT TW-6/25 SECTION 3A & 3B in Oswefo, IL, under a construction stormwater program with an effective status. The page lists zero pollutants under a numeric limit and zero pollutants with an effluent exceedance, and it reports no effluent or single-event violations for this permit. The permit was issued August 20, 2026 and expires August 31, 2028, as recorded in the file loaded September 15, 2026.