Is CHELSEA ECONOMIC DEV. AUTH. required to publish a Consumer Confidence Report?

Yes. CHELSEA ECONOMIC DEV. AUTH. is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is CHELSEA ECONOMIC DEV. AUTH.’s next Consumer Confidence Report due?

CHELSEA ECONOMIC DEV. AUTH.’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

CHELSEA, OK · Rogers County

CHELSEA ECONOMIC DEV. AUTH. Water System

Consumer Confidence Report status

CHELSEA ECONOMIC DEV. AUTH. must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for CHELSEA ECONOMIC DEV. AUTH..

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): OK1021504
System type: Community Water System
Population served: 1,964
Service connections: 1,117
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

CHELSEA ECONOMIC DEV. AUTH. is one of 511 community water systems in Oklahoma in the 501 to 3,300 people size category, serving 1,964 people from surface water.

As of August 1, 2026, its federal record holds 38 entries between 2003 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.

Of the 38, 31 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 volatile organic chemicals, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Total Coliform Rules.

Violation history

Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2016 – December 31, 2016
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2014 – November 30, 2014
Resolved
Monitoring, Regular
—
Styrene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Benzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Toluene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2014 – December 31, 2016
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2014 – December 31, 2016
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – February 6, 2015
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2013 – October 23, 2013
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
October 1, 2012 – October 23, 2013
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 2012 – September 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
October 1, 2009 – December 31, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
July 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2009 – June 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2009 – March 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2008 – June 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2008 – June 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2008 – June 30, 2008
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2007 – December 31, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
April 1, 2005 – June 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Total Haloacetic Acids (HAA5)
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 2003 – May 31, 2003
Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2016 – December 31, 2016	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
November 1, 2014 – November 30, 2014	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Styrene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Benzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Toluene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2014 – December 31, 2016	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
July 1, 2013 – February 6, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2013 – October 23, 2013	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 1, 2012 – October 23, 2013	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
September 1, 2012 – September 30, 2012	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2009 – March 31, 2009	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
April 1, 2008 – June 30, 2008	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
April 1, 2008 – June 30, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
April 1, 2008 – June 30, 2008	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
January 1, 2007 – December 31, 2007	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
January 1, 2005 – March 31, 2005	Maximum Contaminant Level Violation, Average	Total Haloacetic Acids (HAA5)	Health-based	Resolved
May 1, 2003 – May 31, 2003	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

October 24, 2019State Public Notification received1 linked violation
October 24, 2019State Public Notification received1 linked violation
October 24, 2019State Public Notification received21 linked violations
October 24, 2019State Public Notification received1 linked violation
October 24, 2019State Public Notification received1 linked violation
October 24, 2019State Public Notification received2 linked violations
October 24, 2019State Public Notification received1 linked violation
October 24, 2019State Public Notification received1 linked violation
October 24, 2019State Public Notification received1 linked violation
August 6, 2019State Compliance achieved8 linked violations
April 16, 2019State Violation/Reminder Notice2 linked violations
March 21, 2018State Compliance achieved2 linked violations
November 2, 2017State Compliance achieved22 linked violations
April 20, 2017State Violation/Reminder Notice21 linked violations
April 20, 2017State Public Notification requested1 linked violation
April 20, 2017State Public Notification requested21 linked violations
July 26, 2016State Compliance achieved1 linked violation
July 26, 2016State Compliance achieved4 linked violations
July 26, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 26, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 26, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 26, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 26, 2016State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 26, 2016State Compliance achieved8 linked violations
July 26, 2016State Compliance achieved1 linked violation
February 6, 2015State Compliance achieved2 linked violations
October 23, 2013State Compliance achieved2 linked violations
March 29, 2013State Administrative/Compliance Order with penalty issued4 linked violations
October 25, 2012State Public Notification requested10 linked violations
October 23, 2012State Public Notification requested2 linked violations
May 6, 2010State Compliance achieved4 linked violations
May 5, 2010State Public Notification received9 linked violations
February 5, 2010State Administrative/Compliance Order with penalty issued2 linked violations
August 14, 2009State Public Notification requested1 linked violation
May 29, 2009State Administrative/Compliance Order with penalty issued10 linked violations
May 6, 2009State Public Notification requested10 linked violations

Common questions

Is CHELSEA ECONOMIC DEV. AUTH. required to publish a Consumer Confidence Report?: Yes. CHELSEA ECONOMIC DEV. AUTH. is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is CHELSEA ECONOMIC DEV. AUTH.’s next Consumer Confidence Report due?: CHELSEA ECONOMIC DEV. AUTH.’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CHELSEA ECONOMIC DEV. AUTH. have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for CHELSEA ECONOMIC DEV. AUTH..
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

CHELSEA ECONOMIC DEV. AUTH.

918-789-2558

CHELSEA, OK 74016