Public water system · IN5227014

Active

Marion City Water Works

At a glance

Marion City Water Works (PWSID IN5227014) is an active community water system in Grant County, Indiana. It reports serving 28,363 people through 10,763 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in January 2014.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

28,363

Service connections

10,763

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDIN5227014

System typeCommunity water system

Activity statusActive

Population served28,363

Service connections10,763

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyIN state drinking water program

City servedMarion

StateIndiana

ZIP—

CountyGrant County

How does Marion City Water Works compare with other water systems in Grant County?

By EPA's size categories, Marion City Water Works is a large system (10,001 to 100,000 people). Grant County has 48 active public water systems, and Marion City Water Works is the largest of them by population served. Its population served is about 26 times the county average of 1,099 people per system, and accounts for 54% of the 52,771 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 Marion City Water Works is about 4.2 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 Marion City Water Works?

EPA lists Marion City Water Works as owned by a local government. 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. 12 of the 48 active systems in Grant County (25%) are also owned by a local government.

Does Marion City Water Works have drinking water violations?

EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in January 2014. The violations listed here began between January 1998 and January 2014. By type: 4 monitoring and reporting, 3 contaminant level above the legal limit and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Haloacetic acids (HAA5) (2 of them). EPA lists 8 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
2014-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2014-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2013-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2013-10-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2002-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2001-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2000-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
1998-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01	Ethylene dibromide (EDB)code 2946	Yes	Resolved

All 8 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.

Marion City Water Works: frequently asked questions

Who runs Marion City Water Works?

Marion City Water Works (PWSID IN5227014) is a community water system owned by a local government. It is regulated by the IN state drinking water program.

How many people does Marion City Water Works serve?

Marion City Water Works reports serving 28,363 people through 10,763 service connections in Grant County, Indiana.

Where does Marion City Water Works 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 Marion City Water Works have any drinking water violations?

EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in January 2014. 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 Marion City Water Works' 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. EPA's records list 8 violations for this system; 3 are health-based, and the most recent began in January 2014. For current results, consult the system's annual water quality report, EPA ECHO, or the IN state drinking water program.

Where can I find Marion City Water Works' water quality report?

As a community water system, Marion City Water Works 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 Grant County

Water system	County	Population served	Type	Source
Gas City Water Department	Grant	6,000	Community	Groundwater
Upland Water Department	Grant	3,308	Community	Groundwater
Fairmount Water Works	Grant	2,756	Community	Groundwater
Jonesboro Water Department	Grant	2,034	Community	Groundwater
Swayzee Water Utility	Grant	975	Community	Groundwater
Eastbrook High School	Grant	900	Non-transient non-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, “Marion City Water Works, PWSID IN5227014, Indiana”, https://aquacensus.com/water-systems/indiana/marion-city-water-works-in5227014 (data as of October 1, 2026).