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Clean Water Act discharge permit · NPDES ILR10ZG4C

PLAT #3 OF GUILFORD CROSSINGS, Rockford, IL: NPDES ILR10ZG4C discharge permit, effluent exceedances, inspections, penalties

PLAT #3 OF GUILFORD CROSSINGS, held by First Midwest Group, holds NPDES permit ILR10ZG4C. EPA’s file records it issued September 26, 2025 and expiring August 31, 2028.

PLAT #3 OF GUILFORD CROSSINGS, Rockford, Illinois: Coverage under a general permit ILR10ZG4C, held by First Midwest Group; Construction stormwater; Effective; issued September 26, 2025, term to August 31, 2028, by IEPA.

  • April 8, 2026: Evaluation (S).

Illinois holds 5,215 Construction stormwater coverages of this permit type in EPA’s file; 3,625 were issued before ILR10ZG4C. First Midwest Group holds 4 permits in Illinois.

Other permits held by First Midwest Group

Coverages issued nearest ILR10ZG4C

PLAT #3 OF GUILFORD CROSSINGS among its neighbors

EPA’s permit file holds 75 discharge permits in the Spring Creek-Rock Creek subwatershed (HUC 070900050107), ILR10ZG4C among them.

Other permits in the Spring Creek-Rock Creek subwatershed (HUC 070900050107)

Identity

Facility as filedPLAT #3 OF GUILFORD CROSSINGS
Permittee as filedFirst Midwest Group
NPDES IDILR10ZG4C
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedSeptember 26, 2025
Expiration dateAugust 31, 2028
Issuing agencyIEPA
AddressRockford, IL 61107
Receiving water impaired303(D) Listed
SubwatershedSpring Creek-Rock Creek (HUC 070900050107)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES ILR10ZG4C.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES ILR10ZG4C.

Inspections

DateWhat EPA recordedAgency
April 8, 2026EvaluationS

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES ILR10ZG4C.

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, ILR10ZG4C.

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  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
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Nearby on the register

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

What this page shows

The 68 storm water construction permits in Rockford show 0.0% with a violation on file, and PLAT #3 OF GUILFORD CROSSINGS, coded ILR10ZG4C, is among them. Of those 68 permits, 55.9% were issued before this permit. The Spring Creek-Rock Creek subwatershed lists 75 NPDES permits.