Clean Water Act discharge permit · NPDES OK0027375

COLLINSVILLE, CITY OF, Collinsville, OK: NPDES OK0027375 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
5Pollutants under a numeric limit
5Pollutants with an effluent exceedance
2Inspections on file
0Formal enforcement actions

COLLINSVILLE, CITY OF, held by Collinsville, City of, holds NPDES permit OK0027375, which discharges to 121400010010 Caney R. EPA’s file records it issued May 2, 2018 and expiring May 31, 2023. 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	COLLINSVILLE, CITY OF
Permittee as filed	Collinsville, City of
NPDES ID	OK0027375
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	May 2, 2018
Expiration date	May 31, 2023
Issuing agency	ODEQ
Address	Collinsville, OK 74021
Receiving water	121400010010 Caney R
Subwatershed	Sanders Creek Caney River (HUC 110701060710)

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

Effluent limits and exceedances

7Pollutants on file
5Under a numeric limit
7With a violation of any kind
5With 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
BOD, 5-day, 20 deg. C	3	171	135	May 31, 2026	404% over the limit
E. coli	2	45	43	July 31, 2026	1,734% over the limit
pH	2	70	40	July 31, 2026
Coliform, fecal general	0	31	19	August 31, 2016	516,092% over the limit
Solids, total suspended	3	58	16	May 31, 2023	196% over the limit
Flow, in conduit or thru treatment plant	2	33	0
Chlorine, total residual	0	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 OK0027375.

Inspections

Date	What EPA recorded	Agency
April 7, 2026	Evaluation	S
February 3, 2026	Evaluation	S

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

Date	What EPA recorded	Agency
August 5, 2026	Letter of Violation/ Warning Letter	State

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

Watch this permit

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, OK0027375.

Start the watch

How we handle your data → Privacy

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 OK0027375 there.

Nearby on the register

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

This public-records page covers the Clean Water Act NPDES discharge permit OK0027375 held by COLLINSVILLE, CITY OF (Collinsville, City of), which discharges to the Caney R within the Sanders Creek subwatershed. The permit is listed as administratively continued, with a minor discharger class and 5 pollutants under a numeric limit, and 5 pollutants with an effluent exceedance.