Clean Water Act discharge permit · NPDES KS0082988

EXXON MOBIL CORP - OLATHE, Olathe, KS: NPDES KS0082988 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
10Pollutants under a numeric limit
1Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

EXXON MOBIL CORP - OLATHE, held by EXXON MOBIL CORPORATION, holds NPDES permit KS0082988, which discharges to Mill Cr (1027010439). EPA’s file records it issued April 1, 2018 and expiring November 30, 2022.

EXXON MOBIL CORP - OLATHE, Olathe, Kansas: Individual permit KS0082988, held by EXXON MOBIL CORPORATION; Administratively continued (past its expiration date and still in force until reissued); issued April 1, 2018, term to November 30, 2022, by Kansas Department of Health and Environment (KDHE); discharges to Mill Cr (1027010439); Petroleum Lubricating Oil and Grease Manufacturing.

Phosphorus, total [as P]: 2 limits, 1 violation of any kind, 1 effluent exceedance, latest December 31, 2023, largest 42% over the limit.
pH: 4 limits, 4 violations of any kind, 0 effluent exceedances.
Oil & Grease: 4 limits, 2 violations of any kind, 0 effluent exceedances.
Solids, total suspended: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Sulfate, total [as SO4]: 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.
Chlorine, total residual: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Total Petroleum Hydrocarbons - Diesel: 2 limits, 0 violations of any kind, 0 effluent exceedances.
Hydrocarbons, petroleum: 2 limits, 0 violations of any kind, 0 effluent exceedances.

EXXON MOBIL CORP - OLATHE among its neighbors

EPA’s permit file holds 99 discharge permits in the Shawnee Mission Lake-Mill Creek subwatershed (HUC 102701040604), KS0082988 among them. Its county holds 844, 9 of them major permits; KS0082988 is a minor 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	EXXON MOBIL CORP - OLATHE
Permittee as filed	EXXON MOBIL CORPORATION
NPDES ID	KS0082988
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	April 1, 2018
Expiration date	November 30, 2022
Issuing agency	Kansas Department of Health and Environment (KDHE)
Address	Olathe, KS 66061
Receiving water	Mill Cr (1027010439)
Subwatershed	Shawnee Mission Lake-Mill Creek (HUC 102701040604)
NAICS	324191 – Petroleum Lubricating Oil and Grease Manufacturing
SIC	2992 – Lubricating Oils And Greases
Other EPA IDs (FRS)	RCRA handler KSD007234941; ICIS-AIR source KS0000002009100014

Effluent limits and exceedances

10Pollutants on file
10Under a numeric limit
3With a violation of any kind
1With 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
Phosphorus, total [as P]	2	1	1	December 31, 2023	42% over the limit
pH	4	4	0
Oil & Grease	4	2	0
Solids, total suspended	2	0	0
Sulfate, total [as SO4]	2	0	0
Priority Pollutants	2	0	0
Flow, in conduit or thru treatment plant	2	0	0
Chlorine, total residual	2	0	0
Total Petroleum Hydrocarbons - Diesel	2	0	0
Hydrocarbons, petroleum	2	0	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES KS0082988.

Inspections

EPA’s inspection file holds no inspection for NPDES KS0082988.

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 KS0082988.

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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 KS0082988 for EXXON MOBIL CORP - OLATHE in Olathe, KS, held by EXXON MOBIL CORPORATION, which discharges to Mill Cr (1027010439). The permit is administratively continued and classed as a minor discharger, with 1 pollutant under a numeric limit and 1 pollutant with an effluent exceedance.