Clean Water Act discharge permit · NPDES IA0041963
SULLY CITY OF STP, Sully, IA: NPDES IA0041963 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 15Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
SULLY CITY OF STP, held by CITY OF SULLY, holds NPDES permit IA0041963. EPA’s file records it issued March 1, 2021 and expiring February 28, 2026. 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 | SULLY CITY OF STP |
|---|---|
| Permittee as filed | CITY OF SULLY |
| NPDES ID | IA0041963 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 1, 2021 |
| Expiration date | February 28, 2026 |
| Issuing agency | STA |
| Address | Sully, IA 50251 |
| Subwatershed | Village of Lynnville-North Skunk River (HUC 070801060204) |
| NAICS | 221320 – Sewage Treatment Facilities |
| 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
- 15Pollutants on file
- 15Under a numeric limit
- 6With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 9 | 25 | 13 | July 31, 2025 | 597% over the limit |
| Nitrogen, ammonia total [as N] | 48 | 9 | 5 | December 31, 2023 | 81% over the limit |
| pH | 5 | 7 | 2 | July 31, 2025 | |
| Oxygen, dissolved [DO] | 1 | 3 | 2 | September 30, 2017 | 23% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 11 | 1 | July 31, 2023 | 65% over the limit |
| E. coli | 1 | 2 | 0 | ||
| BOD, 5-day, 20 deg. C | 5 | 0 | 0 | ||
| Cyanide, total [as CN] | 5 | 0 | 0 | ||
| Cadmium, total [as Cd] | 5 | 0 | 0 | ||
| Chromium, total [as Cr] | 5 | 0 | 0 | ||
| Copper, total [as Cu] | 5 | 0 | 0 | ||
| Lead, total [as Pb] | 5 | 0 | 0 | ||
| Nickel, total [as Ni] | 5 | 0 | 0 | ||
| Silver, total [as Ag] | 5 | 0 | 0 | ||
| Zinc, total [as Zn] | 5 | 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 IA0041963.
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, IA0041963.
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 IA0041963 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.