Clean Water Act discharge permit · NPDES IL0074209
NELSON ENERGY CENTER, Rock Falls, IL: NPDES IL0074209 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 18Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
NELSON ENERGY CENTER, held by INVENERGY NELSON LLC, holds NPDES permit IL0074209, which discharges to Unnamed Trib To Three Mile Branch Creek. EPA’s file records it issued September 19, 2013 and expiring August 31, 2018. 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 | NELSON ENERGY CENTER |
|---|---|
| Permittee as filed | INVENERGY NELSON LLC |
| NPDES ID | IL0074209 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 19, 2013 |
| Expiration date | August 31, 2018 |
| Address | Rock Falls, IL 61071 |
| Receiving water | UNNAMED TRIB TO THREE MILE BRANCH CREEK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Town of Nelson-Rock River (HUC 070900050610) |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | ICIS-AIR source IL000103814AAC |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 18Pollutants on file
- 18Under a numeric limit
- 11With a violation of any kind
- 2With 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 | 8 | 37 | 25 | August 31, 2022 | 320% over the limit |
| Oil & Grease | 4 | 7 | 3 | June 30, 2025 | 130% over the limit |
| Flow, in conduit or thru treatment plant | 8 | 9 | 0 | ||
| pH | 6 | 8 | 0 | ||
| Chromium, hexavalent [as Cr] | 4 | 8 | 0 | ||
| Chromium, total [as Cr] | 4 | 8 | 0 | ||
| Copper, total [as Cu] | 4 | 8 | 0 | ||
| Iron, total [as Fe] | 4 | 8 | 0 | ||
| Zinc, total [as Zn] | 4 | 8 | 0 | ||
| Chlorine, total residual | 2 | 2 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 1 | 0 | ||
| Chloride [as Cl] | 2 | 0 | 0 | ||
| Sulfate, total [as SO4] | 2 | 0 | 0 | ||
| Fluoride, total [as F] | 2 | 0 | 0 | ||
| Iron, dissolved [as Fe] | 2 | 0 | 0 | ||
| Manganese, total [as Mn] | 2 | 0 | 0 | ||
| Silver, total [as Ag] | 2 | 0 | 0 | ||
| Solids, total dissolved- 180 deg. C | 2 | 0 | 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 IL0074209.
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, IL0074209.
Start the watch
- 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 IL0074209 there.
Nearby on the register
- Discharge permits in Rock Falls
- Every permit record in Rock Falls, 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.