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Clean Water Act discharge permit · NPDES ILR10ZG4S

PATIO HOMES AT SEVEN HILLS 1ST ADDITION, O'Fallon, IL: NPDES ILR10ZG4S discharge permit, effluent exceedances, inspections, penalties

PATIO HOMES AT SEVEN HILLS 1ST ADDITION, held by SMR HOLDING LP, holds NPDES permit ILR10ZG4S. EPA’s file records it issued September 29, 2025 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 PATIO HOMES AT SEVEN HILLS 1ST ADDITION: its NPDES ID, its permit type and status, its dates, its address in O'Fallon, Illinois. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES ILR10ZG4S.

Identity

Facility as filedPATIO HOMES AT SEVEN HILLS 1ST ADDITION
Permittee as filedSMR HOLDING LP
NPDES IDILR10ZG4S
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedSeptember 29, 2025
Expiration dateAugust 31, 2028
Issuing agencyIEPA
AddressO'Fallon, IL 62269
SubwatershedMill Creek-Silver Creek (HUC 071402040509)

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 ILR10ZG4S.

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 ILR10ZG4S.

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, ILR10ZG4S.

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  • 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 ILR10ZG4S there.

Nearby on the register

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

What this page shows

PATIO HOMES AT SEVEN HILLS 1ST ADDITION appears among the 30 storm water construction permits EPA has logged in O'Fallon, and 0.0% of that group carries a violation on file. The Mill Creek-Silver Creek subwatershed, coded HUC 071402040509, contains 25 NPDES permits, and 83.3% of the O'Fallon group were issued before this permit.