NPDES IA0064823 · Clean Water Act
CYLINDER CITY OF STP, Cylinder, IA: NPDES IA0064823 discharge permit, effluent exceedances, inspections, penalties
CYLINDER CITY OF STP, Cylinder, Iowa: Individual permit IA0064823, held by CITY OF CYLINDER; Publicly owned treatment works; Administratively continued; issued April 1, 2018, term to March 31, 2023, by STA; Sewage Treatment Facilities.
4 of the 9 pollutants listed for NPDES IA0064823 have no violation or effluent exceedance.
- Chloride [as Cl]: 4 limits, 28 violations of any kind, 20 effluent exceedances, latest June 30, 2026, largest 124% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 5 limits, 8 violations of any kind, 4 effluent exceedances, latest June 30, 2026, largest 12% over the limit.
- Solids, total suspended: 5 limits, 6 violations of any kind, 2 effluent exceedances, latest June 30, 2025, largest 38% over the limit.
- pH: 2 limits, 4 violations of any kind.
- Annual Nitrate Nitrogen Discharged: 1 limit, 3 violations of any kind.
- Nitrogen, nitrate total [as N]: 5 limits.
- Nitrogen, ammonia total [as N]: 3 limits.
- E. coli: 3 limits.
- Depth of pond or reservoir in feet: 3 limits.
Iowa holds 734 Publicly owned treatment works coverages of this permit type in EPA’s file; 335 were issued before IA0064823.
Coverages issued nearest IA0064823
- 2018-03-30: SAC AND FOX SETTLEMENT LAGOON, Tama: IA0073750, held by Sac and Fox Tribe of the Mississippi in Iowa
- 2018-04-01: ASHTON CITY OF STP, Ashton: IA0024457, held by CITY OF ASHTON
- 2018-04-01: CHARITON CITY OF STP, Chariton: IA0028924, held by CITY OF CHARITON
- 2018-04-01: WADENA, CITY OF STP, Wadena: IA0032492, held by CITY OF WADENA
- 2018-04-01: WALLINGFORD CITY OF STP, Wallingford: IA0062812, held by CITY OF WALLINGFORD
- 2018-04-01: ZWINGLE, CITY OF STP, Zwingle: IA0074209, held by CITY OF ZWINGLE
- 2018-05-01: BUFFALO, CITY OF STP, Buffalo: IA0020800, held by CITY OF BUFFALO
- 2018-05-01: COLUMBUS JUNCTION CITY OF STP, Columbus Junction: IA0023523, held by CITY OF COLUMBUS JUNCTION
- 2018-05-01: LIVERMORE CITY OF STP, Livermore: IA0023566, held by CITY OF LIVERMORE
- 2018-05-01: OYENS CITY OF STP, Oyens: IA0032336, held by CITY OF OYENS
CYLINDER CITY OF STP among its neighbors
1 discharge permits are in the Cylinder Creek subwatershed (HUC 071000020503); IA0064823 is one. Its county: 9, 1 major; IA0064823 is minor permit.
Identity
| Facility | CYLINDER CITY OF STP |
|---|---|
| Permittee | CITY OF CYLINDER |
| NPDES ID | IA0064823 |
| Status | Administratively continued |
| Type | Individual permit |
| Class | Minor |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | April 1, 2018 |
| Expires | March 31, 2023 |
| Agency | STA |
| Address | Cylinder, IA 50528 |
| Subwatershed | Cylinder Creek (HUC 071000020503) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
NPDES IA0064823: effluent limits and exceedances
CYLINDER CITY OF STP (NPDES IA0064823): 9 pollutants on file, 9 limited; 5 with a violation of any kind, 3 with an exceedance.
| Pollutant | Limits | Violations | Exceedances | Latest | Largest, as filed |
|---|---|---|---|---|---|
| Chloride [as Cl] | 4 | 28 | 20 | June 30, 2026 | 124% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 5 | 8 | 4 | June 30, 2026 | 12% over the limit |
| Solids, total suspended | 5 | 6 | 2 | June 30, 2025 | 38% over the limit |
| pH | 2 | 4 | 0 | ||
| Annual Nitrate Nitrogen Discharged | 1 | 3 | 0 | ||
| Nitrogen, nitrate total [as N] | 5 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 3 | 0 | 0 | ||
| E. coli | 3 | 0 | 0 | ||
| Depth of pond or reservoir in feet | 3 | 0 | 0 |
NPDES IA0064823: inspections, violations and enforcement
NPDES IA0064823 (CYLINDER CITY OF STP): no single-event violation, inspection, formal enforcement action and informal enforcement action on file.
Watch NPDES IA0064823
NPDES IA0064823: one email when its EPA record changes — $99/month.
Permits near NPDES IA0064823
NPDES IA0064823: 9 pollutant rows, 0 dated events; ICIS-NPDES download, loaded October 14, 2026.