BLANCHARD, OK · McClain County

CANADIAN VALLEY(SHELLIBROOK) Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of October 29, 2008. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in McClain County, OK.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Oklahoma’s official records. Always confirm current status with Oklahoma before making decisions based on this information.

System facts

System ID (PWSID): OK2004758
System type: Community Water System
Population served: 150
Service connections: 50
Ownership: privately owned
Water source: groundwater (wells)

CANADIAN VALLEY(SHELLIBROOK) is one of 1,277 community water systems in Oklahoma in the 500 or fewer people size category, formerly serving 150 people from groundwater.

EPA's federal records list this system as inactive in 2008; the record below is historical.

As of August 1, 2026, its federal record holds 7 entries between 1991 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.

All 7 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules and the Lead and Copper Rule.

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2009 – October 29, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2008 – August 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2008 – May 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2008 – March 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2007 – August 31, 2007
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2004 – July 6, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1991 – April 30, 1991
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2009 – October 29, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2008 – August 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 2008 – May 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 2008 – March 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 2007 – August 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2004 – July 6, 2005	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
April 1, 1991 – April 30, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule2 linked violations
October 10, 2018State no longer subject to Rule2 linked violations
October 10, 2018State no longer subject to Rule3 linked violations
October 10, 2018State no longer subject to Rule3 linked violations
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule2 linked violations
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule1 linked violation
October 10, 2018State no longer subject to Rule2 linked violations
October 10, 2018State no longer subject to Rule2 linked violations
February 23, 2009State Public Notification requested2 linked violations
October 27, 2008State Public Notification requested2 linked violations
October 8, 2008State Public Notification requested2 linked violations
August 25, 2008State Public Notification requested2 linked violations
August 8, 2008State Public Notification requested2 linked violations
May 21, 2008State Public Notification requested3 linked violations
April 18, 2008State Public Notification requested3 linked violations
March 20, 2008State Public Notification requested3 linked violations
February 6, 2008State Public Notification requested3 linked violations
September 26, 2007State Public Notification requested6 linked violations
July 6, 2005State Public Notification received3 linked violations
July 6, 2005State Compliance achieved3 linked violations
April 25, 2005State Administrative/Compliance Order with penalty issued1 linked violation
March 16, 2005State Public Notification requested2 linked violations

Last known contact on file (system is inactive)

CANADIAN VALLEY (SHELLIBROOK)

405-485-9282

BLANCHARD, OK 73010