Public water system · IN5229009
ActiveCitizens Water of Westfield, LLC
At a glance
Citizens Water of Westfield, LLC (PWSID IN5229009) is an active community water system in Hamilton County, Indiana. It reports serving 61,493 people through 24,597 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
61,493
Service connections
24,597
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Citizens Water of Westfield, LLC compare with other water systems in Hamilton County?
By EPA's size categories, Citizens Water of Westfield, LLC is a large system (10,001 to 100,000 people). Hamilton County has 66 active public water systems, and Citizens Water of Westfield, LLC is the 2nd-largest of them by population served. Its population served is about 18 times the county average of 3,475 people per system, and accounts for 27% of the 229,348 people reported by systems filed under the county. Across Indiana, the 3,969 active systems average 1,456 people each. Nationally, the average active community water system reports serving 6,703 people, so Citizens Water of Westfield, LLC is about 9.2 times that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Indiana has 770 active community water systems, 19% of the state's 3,969 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 3,769 Indiana systems (95%) list groundwater as their primary source.
Who owns and regulates Citizens Water of Westfield, LLC?
EPA lists Citizens Water of Westfield, LLC as privately owned. The IN state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 56 of the 66 active systems in Hamilton County (85%) are also privately owned.
Does Citizens Water of Westfield, LLC have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2013. The violations listed here began between January 2002 and July 2013. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Chromium (2 of them). EPA lists 12 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2013-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2013-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Antimonycode 1074 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Resolved |
| 2002-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nickelcode 1036 | No | Resolved |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Citizens Water of Westfield, LLC: frequently asked questions
Who runs Citizens Water of Westfield, LLC?
Citizens Water of Westfield, LLC (PWSID IN5229009) is a community water system privately owned. It is regulated by the IN state drinking water program.
How many people does Citizens Water of Westfield, LLC serve?
Citizens Water of Westfield, LLC reports serving 61,493 people through 24,597 service connections in Hamilton County, Indiana.
Where does Citizens Water of Westfield, LLC get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Citizens Water of Westfield, LLC have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2013. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Citizens Water of Westfield, LLC's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.
Where can I find Citizens Water of Westfield, LLC's water quality report?
As a community water system, Citizens Water of Westfield, LLC must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Hamilton County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Carmel Water Department | Hamilton | 99,927 | Community | Groundwater under influence of surface water |
| Indiana American Water - Noblesville | Hamilton | 45,575 | Community | Groundwater |
| Cicero Water Department | Hamilton | 5,607 | Community | Groundwater |
| Indiana American Water - Sheridan | Hamilton | 4,435 | Community | Groundwater |
| Ruoff Music Center | Hamilton | 2,000 | Transient non-community | Groundwater |
| Arcadia Water Department | Hamilton | 1,515 | Community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Citizens Water of Westfield, LLC, PWSID IN5229009, Indiana”, https://aquacensus.com/water-systems/indiana/citizens-water-of-westfield-llc-in5229009 (data as of October 1, 2026).