Clean Water Act discharge permit · NPDES WI0028835
ROBERTS WASTEWATER TREATMENT FACILITY, Roberts, WI: NPDES WI0028835 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
ROBERTS WASTEWATER TREATMENT FACILITY, held by Village of Roberts, holds NPDES permit WI0028835, which discharges to L Twin Lakes. EPA’s file records it issued February 1, 2012 and expiring December 31, 2016. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ROBERTS WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | Village of Roberts |
| NPDES ID | WI0028835 |
| 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 | February 1, 2012 |
| Expiration date | December 31, 2016 |
| Address | Roberts, WI 54023 |
| Receiving water | L TWIN LAKES |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 13Pollutants on file
- 12Under a numeric limit
- 13With a violation of any kind
- 6With 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] | 0 | 80 | 44 | June 30, 2026 | 255% over the limit |
| Copper, total recoverable | 2 | 97 | 27 | November 30, 2020 | 106% over the limit |
| Solids, total suspended | 4 | 78 | 6 | January 31, 2026 | 1,244% over the limit |
| BOD, 5-day, 20 deg. C | 4 | 74 | 2 | October 31, 2023 | 42% over the limit |
| pH | 2 | 37 | 1 | June 30, 2026 | |
| Oxygen, dissolved [DO] | 1 | 19 | 1 | August 31, 1992 | 5% over the limit |
| Chloride [as Cl] | 1 | 87 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 60 | 0 | ||
| Phosphorus, total [as P] | 2 | 24 | 0 | ||
| Nitrogen, total [as N] | 1 | 18 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 18 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 18 | 0 | ||
| Hardness, total [as CaCO3] | 1 | 6 | 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 |
|---|---|---|
| July 9, 2020 | Permit Violations - Violation Specified in Comment | ST6 |
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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, WI0028835.
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 WI0028835 there.
Nearby on the register
- Discharge permits in Roberts
- Every permit record in Roberts, A to Z
- Discharge permits in Wisconsin
- Every permit record in Wisconsin, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.