Clean Water Act discharge permit · NPDES KS0097535
OTTAWA, CITY OF (WWTP), Ottawa, KS: NPDES KS0097535 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 30Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
OTTAWA, CITY OF (WWTP), held by OTTAWA, CITY OF, holds NPDES permit KS0097535, which discharges to Marais Des Cygnes R (1029010112). EPA’s file records it issued March 1, 2019 and expiring February 29, 2024.
OTTAWA, CITY OF (WWTP), Ottawa, Kansas: Individual permit KS0097535, held by OTTAWA, CITY OF; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued March 1, 2019, term to February 29, 2024, by Kansas Department of Health and Environment (KDHE); discharges to Marais Des Cygnes R (1029010112).
- Nitrogen, ammonia total [as N]: 48 limits, 8 violations of any kind, 8 effluent exceedances, latest June 30, 2025, largest 325% over the limit.
- E. coli: 48 limits, 2 violations of any kind, 2 effluent exceedances, latest September 30, 2018, largest 299% over the limit.
- Solids, total suspended: 6 limits, 2 violations of any kind, 2 effluent exceedances, latest March 31, 2022, largest 173% over the limit.
- Nitrogen, total [as N]: 4 limits, 10 violations of any kind, 0 effluent exceedances.
- Nitrogen, Kjeldahl, total [as N]: 4 limits, 5 violations of any kind, 0 effluent exceedances.
- Nitrite + Nitrate total [as N]: 2 limits, 5 violations of any kind, 0 effluent exceedances.
- Phosphorus, total [as P]: 6 limits, 2 violations of any kind, 0 effluent exceedances.
- Oxygen, dissolved [DO]: 2 limits, 1 violation of any kind, 0 effluent exceedances.
- BOD, 5-day, 20 deg. C: 6 limits, 0 violations of any kind, 0 effluent exceedances.
- pH: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Nitrogen, Total As N: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Phosphorus, Total As P: 4 limits, 0 violations of any kind, 0 effluent exceedances.
- Hardness, total [as CaCO3]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Arsenic, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Selenium, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Thallium, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Beryllium, total recoverable [as Be]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Nickel, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Silver total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Zinc, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Cadmium, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Lead, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Chromium, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Copper, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Antimony, total recoverable: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Priority Pollutants: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Flow, in conduit or thru treatment plant: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- Mercury, total [as Hg]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- IC25 Static Renewal 7 Day Chronic Chrpimephales: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- March 5, 2026: Evaluation (S).
Kansas holds 454 Publicly owned treatment works coverages of this permit type in EPA’s file; 219 were issued before KS0097535.
Coverages issued nearest KS0097535
- January 1, 2019: SOLOMON, CITY OF (WWTP), Solomon, KS0085979, held by SOLOMON, CITY OF
- January 1, 2019: HILLSBORO, CITY OF (WWTP), Hillsboro, KS0097896, held by HILLSBORO, CITY OF
- January 1, 2019: FAIRVIEW, CITY OF (WWTP), Fairview, KS0098744, held by FAIRVIEW, CITY OF
- March 1, 2019: RENO CO. S.D. #202, Yoder, KS0091715, held by RENO COUNTY COMMISSION
- March 1, 2019: FORT SCOTT, CITY OF (NEW PLANT) (WWTP), Fort Scott, KS0095923, held by FORT SCOTT, CITY OF
- March 1, 2019: EDGERTON BIG BULL CREEK (WWTP), Edgerton, KS0100374, held by EDGERTON, CITY OF
- April 1, 2019: BURLINGAME, CITY OF (WWTP), Burlingame, KS0024694, held by BURLINGAME, CITY OF
- April 1, 2019: POMONA, CITY OF (WWTP), Pomona, KS0029068, held by POMONA WASTEWATER PLANT
- April 1, 2019: UNIONTOWN, CITY OF (WWTP), Uniontown, KS0046051, held by UNIONTOWN, CITY OF
- April 1, 2019: RICHMOND, CITY OF (WWTP), Richmond, KS0047422, held by RICHMOND, CITY OF
OTTAWA, CITY OF (WWTP) among its neighbors
EPA’s permit file holds 11 discharge permits in the Rock Creek-Marais Des Cygnes River subwatershed (HUC 102901010407), KS0097535 among them. Its county holds 80, 1 of them major permits; KS0097535 is a major permit.
Other permits in the Rock Creek-Marais Des Cygnes River subwatershed (HUC 102901010407)
- BERM REMOVAL, Ottawa: KSR121388, minor permit, permit term to July 31, 2027
- EAST WILSON RECYCLE, INC. (STORMWATER), Ottawa: KSR001713, minor permit, permit term to October 31, 2026
- ERNEST-SPENCER CUSTOM COATINGS DIVISION, Ottawa: KSR001160, minor permit, permit term to October 31, 2021
- FASHION, INC., Ottawa: KSR123176, minor permit, permit term to July 31, 2027
- HOTEL & PAD SITE IN LEISURE SUBD, Ottawa: KSR113078, minor permit, permit term to December 31, 2017
- NORTHEAST VILLAGE, Ottawa: KSR122799, minor permit, permit term to July 31, 2027
- PENNY'S CONCRETE - OTTAWA FACILITY, Ottawa: KSG110007, minor permit, permit term to September 30, 2022
- PENNY'S CONCRETE INC., OTTAWA (STORMWATER), Ottawa: KSR115596, minor permit, permit term to July 31, 2022
- WHITAKER AGGREGATES - OTTAWA QUARRY, Ottawa: KS0095036, minor permit, permit term to March 31, 2025
- WOODRIDGE ESTATES, Ottawa: KSR123729, minor permit, permit term to July 31, 2027
Identity
| Facility as filed | OTTAWA, CITY OF (WWTP) |
|---|---|
| Permittee as filed | OTTAWA, CITY OF |
| NPDES ID | KS0097535 |
| 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 | March 1, 2019 |
| Expiration date | February 29, 2024 |
| Issuing agency | Kansas Department of Health and Environment (KDHE) |
| Address | Ottawa, KS 66067 |
| Receiving water | Marais Des Cygnes R (1029010112) |
| Subwatershed | Rock Creek-Marais Des Cygnes River (HUC 102901010407) |
Effluent limits and exceedances
- 30Pollutants on file
- 30Under a numeric limit
- 8With 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] | 48 | 8 | 8 | June 30, 2025 | 325% over the limit |
| E. coli | 48 | 2 | 2 | September 30, 2018 | 299% over the limit |
| Solids, total suspended | 6 | 2 | 2 | March 31, 2022 | 173% over the limit |
| Nitrogen, total [as N] | 4 | 10 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 4 | 5 | 0 | ||
| Nitrite + Nitrate total [as N] | 2 | 5 | 0 | ||
| Phosphorus, total [as P] | 6 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 2 | 1 | 0 | ||
| BOD, 5-day, 20 deg. C | 6 | 0 | 0 | ||
| pH | 4 | 0 | 0 | ||
| Nitrogen, Total As N | 4 | 0 | 0 | ||
| Phosphorus, Total As P | 4 | 0 | 0 | ||
| Hardness, total [as CaCO3] | 2 | 0 | 0 | ||
| Arsenic, total recoverable | 2 | 0 | 0 | ||
| Selenium, total recoverable | 2 | 0 | 0 | ||
| Thallium, total recoverable | 2 | 0 | 0 | ||
| Beryllium, total recoverable [as Be] | 2 | 0 | 0 | ||
| Nickel, total recoverable | 2 | 0 | 0 | ||
| Silver total recoverable | 2 | 0 | 0 | ||
| Zinc, total recoverable | 2 | 0 | 0 | ||
| Cadmium, total recoverable | 2 | 0 | 0 | ||
| Lead, total recoverable | 2 | 0 | 0 | ||
| Chromium, total recoverable | 2 | 0 | 0 | ||
| Copper, total recoverable | 2 | 0 | 0 | ||
| Antimony, total recoverable | 2 | 0 | 0 | ||
| Priority Pollutants | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Mercury, total [as Hg] | 2 | 0 | 0 | ||
| IC25 Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 0 | 0 | ||
| IC25 Static Renewal 7 Day Chronic Chrpimephales | 2 | 0 | 0 |
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES KS0097535.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| March 5, 2026 | Evaluation | S |
Formal enforcement and penalties
0 formal actions, 0 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.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES KS0097535.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.