Clean Water Act discharge permit · NPDES ILG640090
LAKE HOLIDAY UTILITIES WATER TREATMENT PLANT, Somonauk, IL: NPDES ILG640090 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
LAKE HOLIDAY UTILITIES WATER TREATMENT PLANT, held by LAKE HOLIDAY UTILITIES, INC, holds NPDES permit ILG640090, which discharges to Somonauk Creek. EPA’s file records it issued May 30, 2012 and expiring April 30, 2017. 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.
Identity
| Facility as filed | LAKE HOLIDAY UTILITIES WATER TREATMENT PLANT |
|---|---|
| Permittee as filed | LAKE HOLIDAY UTILITIES, INC |
| NPDES ID | ILG640090 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 30, 2012 |
| Expiration date | April 30, 2017 |
| Address | Somonauk, IL 60552 |
| Receiving water | SOMONAUK CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Buck Creek-Somonauk Creek (HUC 071200070403) |
| SIC | 4941 – Water Supply |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 5Pollutants on file
- 5Under a numeric limit
- 5With a violation of any kind
- 4With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 2 | 32 | 4 | October 31, 2011 | 247% over the limit |
| Chlorine, total residual | 1 | 19 | 3 | April 30, 2020 | 540% over the limit |
| Iron, total [as Fe] | 2 | 30 | 2 | August 31, 2018 | 225% over the limit |
| pH | 2 | 29 | 1 | May 31, 2022 | |
| Flow, in conduit or thru treatment plant | 2 | 28 | 0 |
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 ILG640090.
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
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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 ILG640090 there.
Nearby on the register
- Discharge permits in Somonauk
- Every permit record in Somonauk, A to Z
- Discharge permits in Illinois
- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.