Clean Water Act discharge permit · NPDES IA0020940
LYTTON CITY OF STP, Lytton, IA: NPDES IA0020940 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
- 0Inspections on file
- 1Formal enforcement actions
LYTTON CITY OF STP, held by CITY OF LYTTON, holds NPDES permit IA0020940. EPA’s file records it issued May 1, 2017 and expiring April 30, 2022.
LYTTON CITY OF STP, Lytton, Iowa: Individual permit IA0020940, held by CITY OF LYTTON; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued May 1, 2017, term to April 30, 2022, by STA; Sewage Treatment Facilities.
- Flow, in conduit or thru treatment plant: 0 limits, 55 violations of any kind, 55 effluent exceedances, latest March 31, 2017, largest 451,845% over the limit.
- Chloride [as Cl]: 4 limits, 39 violations of any kind, 39 effluent exceedances, latest June 30, 2026, largest 486% over the limit.
- BOD, carbonaceous [5 day, 20 C]: 5 limits, 12 violations of any kind, 10 effluent exceedances, latest May 31, 2026, largest 156% over the limit.
- Solids, total suspended: 10 limits, 3 violations of any kind, 1 effluent exceedance, latest November 30, 2025, largest 5% over the limit.
- pH: 5 limits, 1 violation of any kind, 1 effluent exceedance, latest April 30, 2004.
- BOD, 5-day, 20 deg. C: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, ammonia total [as N]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, Kjeldahl, total [as N]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- Sulfate, total [as SO4]: 5 limits, 0 violations of any kind, 0 effluent exceedances.
- E. coli: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Depth of pond or reservoir in feet: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- January 9, 2026: State CWA Penalty AO (State), $2,000 state or local penalty.
Iowa holds 734 Publicly owned treatment works coverages of this permit type in EPA’s file; 216 were issued before IA0020940.
Coverages issued nearest IA0020940
- April 1, 2017: DAKOTA CITY CITY OF STP, Dakota City, IA0048003, held by CITY OF DAKOTA CITY
- April 1, 2017: PANORA CITY OF STP, Panora, IA0057045, held by CITY OF PANORA
- April 1, 2017: PARKERSBURG CITY OF STP, Parkersburg, IA0058831, held by CITY OF PARKERSBURG
- April 1, 2017: PATTERSON CITY OF STP, Patterson, IA0062961, held by CITY OF PATTERSON
- April 1, 2017: KIRKVILLE, CITY OF, Ottumwa, IA0074667, held by WAPELLO RURAL WATER ASSOCIATION
- May 1, 2017: ELKADER CITY OF STP, Elkader, IA0021962, held by CITY OF ELKADER
- May 1, 2017: MCGREGOR CITY OF STP, Mcgregor, IA0028614, held by CITY OF MCGREGOR
- May 1, 2017: GRISWOLD CITY OF STP, Griswold, IA0031411, held by CITY OF GRISWOLD
- May 1, 2017: LINN GROVE CITY OF STP, Linn Grove, IA0042897, held by CITY OF LINN GROVE
- May 1, 2017: LARCHWOOD CITY OF STP, Larchwood, IA0047333, held by CITY OF LARCHWOOD
LYTTON CITY OF STP among its neighbors
EPA’s permit file holds 1 discharge permits in the West Fork Camp Creek subwatershed (HUC 071000060503), IA0020940 among them. Its county holds 11, 0 of them major permits; IA0020940 is a minor permit.
Identity
| Facility as filed | LYTTON CITY OF STP |
|---|---|
| Permittee as filed | CITY OF LYTTON |
| NPDES ID | IA0020940 |
| 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 | May 1, 2017 |
| Expiration date | April 30, 2022 |
| Issuing agency | STA |
| Address | Lytton, IA 50561 |
| Subwatershed | West Fork Camp Creek (HUC 071000060503) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Effluent limits and exceedances
- 11Pollutants on file
- 10Under a numeric limit
- 5With 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 |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 0 | 55 | 55 | March 31, 2017 | 451,845% over the limit |
| Chloride [as Cl] | 4 | 39 | 39 | June 30, 2026 | 486% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 5 | 12 | 10 | May 31, 2026 | 156% over the limit |
| Solids, total suspended | 10 | 3 | 1 | November 30, 2025 | 5% over the limit |
| pH | 5 | 1 | 1 | April 30, 2004 | |
| BOD, 5-day, 20 deg. C | 5 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 5 | 0 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 5 | 0 | 0 | ||
| Sulfate, total [as SO4] | 5 | 0 | 0 | ||
| E. coli | 3 | 0 | 0 | ||
| Depth of pond or reservoir in feet | 3 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0020940.
Inspections
EPA’s inspection file holds no inspection for NPDES IA0020940.
Formal enforcement and penalties
1 formal actions, 1 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
| Date | What EPA recorded | Agency | Federal penalty | State or local penalty |
|---|---|---|---|---|
| January 9, 2026 | State CWA Penalty AO | State | $2,000 |
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES IA0020940.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.