Clean Water Act discharge permit · NPDES IL0021211
ALEXIS STP, Alexis, IL: NPDES IL0021211 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
ALEXIS STP, held by ALEXIS, VILLAGE OF, holds NPDES permit IL0021211, which discharges to Unnamed Trib Of Middle Frk Henderson Crk. EPA’s file records it issued June 20, 2017 and expiring June 30, 2022. 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 | ALEXIS STP |
|---|---|
| Permittee as filed | ALEXIS, VILLAGE OF |
| NPDES ID | IL0021211 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 20, 2017 |
| Expiration date | June 30, 2022 |
| Address | Alexis, IL 61412 |
| Receiving water | UNNAMED TRIB OF MIDDLE FRK HENDERSON CRK |
| Subwatershed | Glass Lake-Henderson Creek (HUC 070801041003) |
| Program components on file | Biosolids, POTW |
| SIC | 4952 – Sewerage Systems |
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
- 10Pollutants on file
- 10Under a numeric limit
- 10With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 14 | 453 | 419 | July 31, 2026 | 1,133% over the limit |
| Solids, total suspended | 6 | 122 | 87 | July 31, 2026 | 448% over the limit |
| Oxygen, dissolved [DO] | 5 | 81 | 70 | July 31, 2026 | 67% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 78 | 54 | May 31, 2026 | 130% over the limit |
| pH | 2 | 14 | 1 | July 31, 2026 | |
| Flow, in conduit or thru treatment plant | 4 | 30 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 10 | 0 | ||
| Chlorine, total residual | 1 | 8 | 0 | ||
| Flow | 1 | 4 | 0 | ||
| Coliform, fecal general | 2 | 3 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 16, 2026 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | ST6 |
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, IL0021211.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 IL0021211 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.