Clean Water Act discharge permit · NPDES ILG551062

STEPHENSON MOBILE HOME ESTATES STP, Freeport, IL: NPDES ILG551062 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
2Pollutants with an effluent exceedance

STEPHENSON MOBILE HOME ESTATES STP, held by STEPHENSON MOBILE HOME ESTATES, holds NPDES permit ILG551062, which discharges to Unnamed Trib To Preston Creek. EPA’s file records it issued May 21, 2014 and expiring June 30, 2018. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	STEPHENSON MOBILE HOME ESTATES STP
Permittee as filed	STEPHENSON MOBILE HOME ESTATES
NPDES ID	ILG551062
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Coverage under a general permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	May 21, 2014
Expiration date	June 30, 2018
Address	Freeport, IL 61032
Receiving water	UNNAMED TRIB TO PRESTON CREEK
Subwatershed	Preston Creek-Pecatonica River (HUC 070900031204)
SIC	6515 – Mobile Home Site Operators

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

9Pollutants on file
9Under a numeric limit
9With 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
Solids, total suspended	5	34	24	September 30, 2021	254% over the limit
BOD, carbonaceous [5 day, 20 C]	4	23	15	September 30, 2021	381% over the limit
Flow, in conduit or thru treatment plant	4	6	0
pH	2	4	0
Chlorine, total residual	1	4	0
BOD, 5-day, 20 deg. C	1	2	0
Oxygen, dissolved [DO]	1	1	0
Nitrogen, ammonia total [as N]	1	1	0
Coliform, fecal general	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 ILG551062.

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 ILG551062 there.

Nearby on the register

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

This public-records page covers the Clean Water Act discharge permit NPDES ILG551062 for the Stephenson Mobile Home Estates STP in Freeport, IL, held by Stephenson Mobile Home Estates and discharging to Unnamed Trib To Preston Creek. The page lists the permit as administratively continued with Minor Discharger class 9 and 2 pollutants under a numeric limit, of which 2 had an effluent exceedance. The permit was issued May 21, 2014 and expired June 30, 2018, with status as of October 14, 2026.