Clean Water Act discharge permit · NPDES IL0036528

MOUNT OLIVE NORTH STP, Mount Olive, IL: NPDES IL0036528 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
10Pollutants under a numeric limit
6Pollutants with an effluent exceedance

MOUNT OLIVE NORTH STP, held by MT OLIVE, CITY OF, holds NPDES permit IL0036528, which discharges to Unnamed Trib Of Sugar Creek. EPA’s file records it issued September 15, 2017 and expiring September 30, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	MOUNT OLIVE NORTH STP
Permittee as filed	MT OLIVE, CITY OF
NPDES ID	IL0036528
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	September 15, 2017
Expiration date	September 30, 2022
Address	Mount Olive, IL 62069
Receiving water	UNNAMED TRIB OF SUGAR CREEK
Subwatershed	East Creek-Cahokia Creek (HUC 071401010102)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

10Pollutants on file
10Under a numeric limit
10With a violation of any kind
6With 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
Coliform, fecal general	2	49	46	May 31, 2026	132,400% over the limit
Nitrogen, ammonia total [as N]	17	33	21	June 30, 2026	163% over the limit
Solids, total suspended	6	26	18	June 30, 2026	8,233% over the limit
Oxygen, dissolved [DO]	5	19	16	March 31, 2026	27% over the limit
BOD, carbonaceous [5 day, 20 C]	4	8	4	April 30, 2025	108% over the limit
BOD, 5-day, 20 deg. C	2	5	1	January 31, 2020	71% over the limit
Flow, in conduit or thru treatment plant	4	7	0
pH	4	6	0
Chlorine, total residual	2	4	0
Flow, total	1	1	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0036528.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID IL0036528 there.

Nearby on the register

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

This public-records page covers NPDES permit IL0036528 for the Mount Olive North STP in Mount Olive, IL, held by MT OLIVE, CITY OF, and discharging to Unnamed Trib Of Sugar Creek. The page lists a permit status of Administratively continued, a Minor Discharger class, 10 Pollutants under a numeric limit, and 6 Pollutants with an effluent exceedance.