Clean Water Act discharge permit · NPDES KS0045802

OLATHE HAROLD (MAIN PLANT) (WWTP), Olathe, KS: NPDES KS0045802 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
32Pollutants under a numeric limit
2Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

OLATHE HAROLD (MAIN PLANT) (WWTP), held by OLATHE HAROLD STREET WWTF, holds NPDES permit KS0045802, which discharges to Mill Cr (1027010439). EPA’s file records it issued May 1, 2018 and expiring April 30, 2023.

OLATHE HAROLD (MAIN PLANT) (WWTP), Olathe, Kansas: Individual permit KS0045802, held by OLATHE HAROLD STREET WWTF; Publicly owned treatment works; Administratively continued (past its expiration date and still in force until reissued); issued May 1, 2018, term to April 30, 2023, by Kansas Department of Health and Environment (KDHE); discharges to Mill Cr (1027010439); Sewage Treatment Facilities.

Nitrogen, ammonia total [as N]: 48 limits, 9 violations of any kind, 9 effluent exceedances, latest February 28, 2026, largest 161% over the limit.
BOD, 5-day, 20 deg. C: 50 limits, 2 violations of any kind, 2 effluent exceedances, latest June 30, 2025, largest 17% over the limit.
Solids, total suspended: 6 limits, 0 violations of any kind, 0 effluent exceedances.
Phosphorus, total [as P]: 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.
Nitrogen, Kjeldahl, total [as N]: 4 limits, 0 violations of any kind, 0 effluent exceedances.
E. coli: 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.
Oxygen, dissolved [DO]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Nitrite + Nitrate total [as N]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Hardness, total [as CaCO3]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Chloride [as Cl]: 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.
Rainfall: 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.

Kansas holds 454 Publicly owned treatment works coverages of this permit type in EPA’s file; 171 were issued before KS0045802. OLATHE HAROLD STREET WWTF holds 2 permits in Kansas.

Other permits held by OLATHE HAROLD STREET WWTF

OLATHE HAROLD STREET WWTF, Olathe: KSL045802, issued January 1, 2021

Coverages issued nearest KS0045802

April 1, 2018: LYNDON, CITY (WWTP), Lyndon, KS0101303, held by LYNDON, CITY OF
April 1, 2018: COLONY, CITY OF (WWTP), Colony, KS0116122, held by COLONY WASTEWATER PLANT
April 1, 2018: NEW STRAWN, CITY OF (WWTP), New Strawn, KS0117030, held by NEW STRAWN, CITY OF
May 1, 2018: LEROY, CITY OF (WWTP), Leroy, KS0030813, held by LEROY, CITY OF
May 1, 2018: COLUMBUS, CITY OF (WWTP), Columbus, KS0031445, held by COLUMBUS, CITY OF
May 1, 2018: EMPORIA, CITY OF (WWTP), Emporia, KS0046728, held by EMPORIA, CITY OF
May 1, 2018: LINCOLNVILLE, CITY OF (WWTP), Lincolnville, KS0090581, held by LINCOLNVILLE, CITY OF
May 1, 2018: CHEROKEE CO. S.D. #1 (WWTP), Riverton, KS0091057, held by CHEROKEE COUNTY COMMISSION
June 1, 2018: HUMBOLDT, CITY OF (WWTP), Humboldt, KS0022632, held by HUMBOLDT, CITY OF
June 1, 2018: KANSAS CITY (PLANT NO. 3) WWTP, Kansas City, KS0085600, held by UNIFIED GOV OF KC/WY CNTY

OLATHE HAROLD (MAIN PLANT) (WWTP) among its neighbors

EPA’s permit file holds 99 discharge permits in the Shawnee Mission Lake-Mill Creek subwatershed (HUC 102701040604), KS0045802 among them. Its county holds 844, 9 of them major permits; KS0045802 is a major permit.

Other permits in the Shawnee Mission Lake-Mill Creek subwatershed (HUC 102701040604)

119TH & RIDGEVIEW - RETAIL, Olathe: KSR122964, minor permit, permit term to July 31, 2027
19-0116-9, Lenexa: KSR123573, minor permit, permit term to July 31, 2027
21945 W 83RD - SHAWNEE KS - ELEVENTEN SYSTEMS, Shawnee: KSR122535, minor permit, permit term to July 31, 2027
ADMINISTRATION CENTER (WATERONE) (STORMWATER), Lenexa: KSR000529, minor permit, permit term to October 31, 2021
ALTO APARTMENTS, Lenexa: KSR121992, minor permit, permit term to July 31, 2027
AMAZON.COM SERVICES LLC - MC15 (STORMWATER), Lenexa: KSR001125, minor permit, permit term to October 31, 2021
ARISE SALES CENTER, Lenexa: KSR122906, minor permit, permit term to July 31, 2027
ARROW MATERIAL HANDLING (STORMWATER), Lenexa: KSR001648, minor permit, permit term to October 31, 2026
BELONGKC, Olathe: KSR124206, minor permit, permit term to July 31, 2027
BRISTOL HIGHLANDS EAST PHASE 1, Shawnee: KSR121807, minor permit, permit term to July 31, 2027

Identity

Facility as filed	OLATHE HAROLD (MAIN PLANT) (WWTP)
Permittee as filed	OLATHE HAROLD STREET WWTF
NPDES ID	KS0045802
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	May 1, 2018
Expiration date	April 30, 2023
Issuing agency	Kansas Department of Health and Environment (KDHE)
Address	Olathe, KS 66061
Receiving water	Mill Cr (1027010439)
Receiving water impaired	303(D) Listed
Subwatershed	Shawnee Mission Lake-Mill Creek (HUC 102701040604)
Program components on file	POTW, Pretreatment
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – Sewerage Systems

Effluent limits and exceedances

32Pollutants on file
32Under a numeric limit
2With 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
Nitrogen, ammonia total [as N]	48	9	9	February 28, 2026	161% over the limit
BOD, 5-day, 20 deg. C	50	2	2	June 30, 2025	17% over the limit
Solids, total suspended	6	0	0
Phosphorus, total [as P]	6	0	0
pH	4	0	0
Nitrogen, total [as N]	4	0	0
Nitrogen, Kjeldahl, total [as N]	4	0	0
E. coli	4	0	0
Nitrogen, Total As N	4	0	0
Phosphorus, Total As P	4	0	0
Oxygen, dissolved [DO]	2	0	0
Nitrite + Nitrate total [as N]	2	0	0
Hardness, total [as CaCO3]	2	0	0
Chloride [as Cl]	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
Rainfall	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 KS0045802.

Inspections

EPA’s inspection file holds no inspection for NPDES KS0045802.

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 KS0045802.

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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers Clean Water Act discharge permit NPDES KS0045802 for OLATHE HAROLD (MAIN PLANT) (WWTP) in Olathe, KS, a major discharger administratively continued with an issued date of May 1, 2018 and an expiration date of April 30, 2023. The page lists 32 as the discharger class, 2 pollutants under a numeric limit, and 2 pollutants with an effluent exceedance.