Is CHESTER WATER SUPPLY required to publish a Consumer Confidence Report?

Yes. CHESTER WATER SUPPLY 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 CHESTER WATER SUPPLY’s next Consumer Confidence Report due?

CHESTER WATER SUPPLY’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.

RICEVILLE, IA · Howard County

CHESTER WATER SUPPLY Water System

Consumer Confidence Report status

CHESTER WATER SUPPLY 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 CHESTER WATER SUPPLY.

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 Iowa’s official records. Always confirm current status with Iowa before making decisions based on this information.

System facts

System ID (PWSID): IA4509024
System type: Community Water System
Population served: 139
Service connections: 76
Ownership: local government
Water source: groundwater (wells)

CHESTER WATER SUPPLY is one of 1,221 community water systems in Iowa in the 500 or fewer people size category, serving 139 people from groundwater.

As of August 1, 2026, its federal record holds 20 entries between 1991 and 2019, all of which EPA lists as closed. Nothing has been added since 2019.

Of the 20, 17 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 synthetic organic chemicals, volatile organic chemicals, and the Total Coliform Rules.

Violation history

Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2019 – July 31, 2019
Resolved
Monitoring, Regular
—
Nitrate
July 1, 2018 – June 30, 2019
Resolved
Operations Report
—
No contaminant on record
December 1, 2012 – December 31, 2012
Resolved
Operations Report
—
No contaminant on record
July 1, 2012 – September 30, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1995 – September 30, 1995
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
2,4-D
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Dalapon
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Pentachlorophenol
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
2,4,5-TP
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
LASSO
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Ethylbenzene
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
Toluene
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
July 1, 1995 – June 30, 2000
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
July 1, 1995 – June 30, 2000
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1991 – October 31, 1991
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2019 – July 31, 2019	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2018 – June 30, 2019	Monitoring, Regular	Nitrate	—	Resolved
December 1, 2012 – December 31, 2012	Operations Report	—	—	Resolved
July 1, 2012 – September 30, 2012	Operations Report	—	—	Resolved
September 1, 1995 – September 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	2,4-D	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Dalapon	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Pentachlorophenol	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	2,4,5-TP	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	LASSO	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Ethylbenzene	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	Toluene	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
July 1, 1995 – June 30, 2000	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 1991 – October 31, 1991	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

October 23, 2025State Public Notification requested1 linked violation
October 23, 2025State Formal Notice of Violation issued1 linked violation
October 23, 2025State Public Notification requested1 linked violation
October 23, 2025State Formal Notice of Violation issued1 linked violation
October 2, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 29, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
September 3, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 3, 2025State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
October 28, 2019State Public Notification received1 linked violation
October 28, 2019State Public Notification received1 linked violation
August 27, 2019State Compliance achieved1 linked violation
August 27, 2019State Compliance achieved1 linked violation
August 20, 2019State Public Notification requested1 linked violation
August 20, 2019State Formal Notice of Violation issued1 linked violation
July 17, 2019State Public Notification requested1 linked violation
July 17, 2019State Formal Notice of Violation issued1 linked violation
January 19, 2018State Public Notification received1 linked violation
October 30, 2017State Compliance achieved1 linked violation
October 17, 2017State Public Notification requested1 linked violation
October 17, 2017State Formal Notice of Violation issued1 linked violation
July 11, 2016State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 11, 2016State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 11, 2016State Formal Notice of Violation issuedgeneral compliance action — not tied to a specific violation on record
February 5, 2015State Public Notification received1 linked violation
October 14, 2014State Formal Notice of Violation issued1 linked violation
July 15, 2014State Formal Notice of Violation issued1 linked violation
November 8, 2013State Public Notification received2 linked violations
July 15, 2013State Formal Notice of Violation issued1 linked violation
July 15, 2013State Public Notification requested1 linked violation
February 25, 2013State Public Notification received2 linked violations
January 28, 2013State Compliance achieved3 linked violations
January 22, 2013State Public Notification requested3 linked violations
August 29, 2012State Public Notification requested24 linked violations
August 27, 2012State Compliance achieved18 linked violations
October 23, 2000State Public Notification received4 linked violations
October 23, 2000State Public Notification received4 linked violations
October 23, 2000State Public Notification received3 linked violations
October 23, 2000State Public Notification received3 linked violations
October 23, 2000State Public Notification received4 linked violations
October 23, 2000State Public Notification received4 linked violations
October 23, 2000State Public Notification received6 linked violations
October 23, 2000State Public Notification received4 linked violations
October 23, 2000State Public Notification received4 linked violations
October 23, 2000State Public Notification received3 linked violations
September 29, 2000State Compliance achieved2 linked violations
September 29, 2000State Compliance achieved3 linked violations
September 29, 2000State Compliance achieved2 linked violations
September 29, 2000State Compliance achieved4 linked violations
September 29, 2000State Compliance achieved2 linked violations
September 29, 2000State Compliance achieved2 linked violations
September 29, 2000State Compliance achieved2 linked violations
September 29, 2000State Compliance achieved23 linked violations
September 29, 2000State Compliance achieved3 linked violations
September 29, 2000State Compliance achieved3 linked violations
September 29, 2000State Compliance achieved2 linked violations
September 29, 2000State Compliance achieved2 linked violations
September 29, 2000State Compliance achieved2 linked violations
August 21, 2000State Formal Notice of Violation issued1 linked violation
August 21, 2000State Formal Notice of Violation issued1 linked violation
August 21, 2000State Formal Notice of Violation issued1 linked violation
August 21, 2000State Formal Notice of Violation issued2 linked violations
August 21, 2000State Formal Notice of Violation issued2 linked violations
August 21, 2000State Formal Notice of Violation issued7 linked violations
August 21, 2000State Formal Notice of Violation issued5 linked violations
August 21, 2000State Formal Notice of Violation issued5 linked violations
August 21, 2000State Formal Notice of Violation issued2 linked violations
August 21, 2000State Formal Notice of Violation issued1 linked violation
August 21, 2000State Formal Notice of Violation issued1 linked violation
August 21, 2000State Formal Notice of Violation issued1 linked violation
August 21, 2000State Formal Notice of Violation issued1 linked violation
August 21, 2000State Formal Notice of Violation issued2 linked violations
August 21, 2000State Formal Notice of Violation issued1 linked violation
August 21, 2000State Formal Notice of Violation issued1 linked violation
August 21, 2000State Formal Notice of Violation issued1 linked violation
August 21, 2000State Public Notification requested2 linked violations
August 21, 2000State Public Notification requested2 linked violations
August 21, 2000State Public Notification requested231 linked violations
August 21, 2000State Public Notification requested27 linked violations
August 21, 2000State Public Notification requested28 linked violations
August 21, 2000State Public Notification requested27 linked violations
August 21, 2000State Public Notification requested26 linked violations
August 21, 2000State Public Notification requested29 linked violations
August 21, 2000State Formal Notice of Violation issued3 linked violations
August 21, 2000State Formal Notice of Violation issued20 linked violations
November 2, 1998State Public Notification received1 linked violation
October 7, 1998State Compliance achieved1 linked violation
November 22, 1995State Formal Notice of Violation issued2 linked violations
October 27, 1995State Compliance achieved6 linked violations
October 27, 1995State Compliance achieved1 linked violation
October 20, 1995State Formal Notice of Violation issued2 linked violations
October 30, 1991State Formal Notice of Violation issued3 linked violations
October 30, 1991State Public Notification requested2 linked violations

Common questions

Is CHESTER WATER SUPPLY required to publish a Consumer Confidence Report?: Yes. CHESTER WATER SUPPLY 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 CHESTER WATER SUPPLY’s next Consumer Confidence Report due?: CHESTER WATER SUPPLY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does CHESTER WATER SUPPLY have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for CHESTER WATER SUPPLY.
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

CHESTER WATER SUPPLY

641-257-8500

RICEVILLE, IA 50466