Clean Water Act discharge permit · NPDES KS0097250

OSAWATOMIE WATER TREATMENT PLANT, Osawatomie, KS: NPDES KS0097250 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
3Pollutants under a numeric limit
2Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

OSAWATOMIE WATER TREATMENT PLANT, held by OSAWATOMIE WATER PLANT, holds NPDES permit KS0097250, which discharges to Marais Des Cygnes R (102901013). EPA’s file records it issued August 1, 2020 and expiring March 31, 2025.

OSAWATOMIE WATER TREATMENT PLANT, Osawatomie, Kansas: Individual permit KS0097250, held by OSAWATOMIE WATER PLANT; Administratively continued (past its expiration date and still in force until reissued); issued August 1, 2020, term to March 31, 2025, by Kansas Department of Health and Environment (KDHE); discharges to Marais Des Cygnes R (102901013).

Chlorine, total residual: 2 limits, 14 violations of any kind, 6 effluent exceedances, latest December 31, 2024, largest 400% over the limit.
Solids, total suspended: 2 limits, 8 violations of any kind, 2 effluent exceedances, latest June 30, 2024, largest 274% over the limit.
pH: 4 limits, 12 violations of any kind, 0 effluent exceedances.
Nitrogen, ammonia total [as N]: 0 limits, 8 violations of any kind, 0 effluent exceedances.

OSAWATOMIE WATER TREATMENT PLANT among its neighbors

EPA’s permit file holds 9 discharge permits in the Plum Creek-Maris Des Cygnes River subwatershed (HUC 102901010707), KS0097250 among them. Its county holds 56, 0 of them major permits; KS0097250 is a minor permit.

Other permits in the Plum Creek-Maris Des Cygnes River subwatershed (HUC 102901010707)

MIAMI COUNTY AIRPORT, Paola: KSR001376, minor permit, permit term to October 31, 2026
MIAMI COUNTY AIRPORT REHABILITATION WEST TAXILANE AND HANGAR RAMPS, Paola: KSR124223, minor permit, permit term to July 31, 2027
OSAWATOMIE HIGH SCHOOL, Osawatomie: KSR124181, minor permit, permit term to July 31, 2027
OSAWATOMIE JOHN BROWN LOOP AND SOUTH LEVEE LOOP SIDEWALK/TRAIL IMPROVEMENT PROJE, Osawatomie: KSR123812, minor permit, permit term to July 31, 2027
OSAWATOMIE MUNICIPAL POWER PLANT, Osawatomie: KS0078930, minor permit, discharging to MARAIS DES CYGNES RIVER, permit term to November 30, 2019
OSAWATOMIE STATE HOSPITAL CARMICHAEL & RUSH, Osawatmoie: KSR123380, minor permit, permit term to July 31, 2027
OSAWATOMIE, CITY OF (WWTP), Osawatomie: KS0021865, minor permit, discharging to Marais Des Cygnes R (102901011), permit term to August 31, 2024
RANTOUL, CITY OF (WWTP), Rantoul: KS0048119, minor permit, discharging to Marais Des Cygnes R (102901013), permit term to December 31, 2024

Identity

Facility as filed	OSAWATOMIE WATER TREATMENT PLANT
Permittee as filed	OSAWATOMIE WATER PLANT
NPDES ID	KS0097250
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	August 1, 2020
Expiration date	March 31, 2025
Issuing agency	Kansas Department of Health and Environment (KDHE)
Address	Osawatomie, KS 66064
Receiving water	Marais Des Cygnes R (102901013)
Subwatershed	Plum Creek-Maris Des Cygnes River (HUC 102901010707)

Effluent limits and exceedances

4Pollutants on file
3Under a numeric limit
4With a violation of any kind
2With 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
Chlorine, total residual	2	14	6	December 31, 2024	400% over the limit
Solids, total suspended	2	8	2	June 30, 2024	274% over the limit
pH	4	12	0
Nitrogen, ammonia total [as N]	0	8	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES KS0097250.

Inspections

EPA’s inspection file holds no inspection for NPDES KS0097250.

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 KS0097250.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers Clean Water Act discharge permit NPDES KS0097250 for the Osawatomie Water Treatment Plant in Osawatomie, KS, held by Osawatomie Water Plant and discharging to Marais Des Cygnes R (102901013). The permit is listed as administratively continued, a minor discharger class 3, with 2 pollutants under a numeric limit and 2 pollutants showing an effluent exceedance.