Clean Water Act discharge permit · NPDES IL0078301
ROCK FALLS, CITY OF, Rock Falls, IL: NPDES IL0078301 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 31Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
ROCK FALLS, CITY OF holds NPDES permit IL0078301, which discharges to Rock River. EPA’s file records it issued July 30, 2015 and expiring July 31, 2020. 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.
Identity
| Facility as filed | ROCK FALLS, CITY OF |
|---|---|
| Permittee as filed | ROCK FALLS, CITY OF |
| NPDES ID | IL0078301 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | July 30, 2015 |
| Expiration date | July 31, 2020 |
| Address | Rock Falls, IL 61071 |
| Receiving water | ROCK RIVER |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Spring Slough-Rock River (HUC 070900051001) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 32Pollutants on file
- 31Under a numeric limit
- 30With a violation of any kind
- 3With 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] | 10 | 11 | 5 | January 31, 2025 | 80% over the limit |
| Phosphorus, total [as P] | 2 | 3 | 1 | October 31, 2011 | 47% over the limit |
| Coliform, fecal general | 1 | 1 | 1 | June 30, 2023 | 159% over the limit |
| Solids, total suspended | 5 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 4 | 0 | ||
| BOD, carbonaceous [5 day, 20 C] | 4 | 4 | 0 | ||
| Oxygen, dissolved [DO] | 5 | 3 | 0 | ||
| Nitrogen, total [as N] | 1 | 3 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Mercury, total [as Hg] | 2 | 2 | 0 | ||
| Oil & Grease | 2 | 1 | 0 | ||
| Cyanide, total [as CN] | 2 | 1 | 0 | ||
| Arsenic, total [as As] | 2 | 1 | 0 | ||
| Barium, total [as Ba] | 2 | 1 | 0 | ||
| Cadmium, total [as Cd] | 2 | 1 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 1 | 0 | ||
| Chromium, total [as Cr] | 2 | 1 | 0 | ||
| Copper, total [as Cu] | 2 | 1 | 0 | ||
| Iron, total [as Fe] | 2 | 1 | 0 | ||
| Iron, dissolved [as Fe] | 2 | 1 | 0 | ||
| Lead, total [as Pb] | 2 | 1 | 0 | ||
| Manganese, total [as Mn] | 2 | 1 | 0 | ||
| Nickel, total [as Ni] | 2 | 1 | 0 | ||
| Silver, total [as Ag] | 2 | 1 | 0 | ||
| Zinc, total [as Zn] | 2 | 1 | 0 | ||
| Selenium, total [as Se] | 2 | 1 | 0 | ||
| Phenolics, total recoverable | 2 | 1 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 1 | 0 | ||
| Chlorine, total residual | 1 | 1 | 0 | ||
| Cyanide, free [amenable to chlorination] | 0 | 1 | 0 | ||
| Cyanide, weak acid, dissociable | 2 | 0 | 0 | ||
| Fluoride, total [as F] | 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 IL0078301.
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 IL0078301 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.