Public water system · IA5720010

Active

Central City Water Supply

At a glance

Central City Water Supply (PWSID IA5720010) is an active community water system in Linn County, Iowa. It reports serving 1,264 people through 586 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 3 are health-based, and the most recent began in July 2013.

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

Population served

1,264

Service connections

586

Primary source

Groundwater

System type

CWS

Community water system

System record

PWSIDIA5720010

System typeCommunity water system

Activity statusActive

Population served1,264

Service connections586

Primary water sourceGroundwater

Owner typeLocal government

Primacy agencyIA state drinking water program

City servedCentral City

StateIowa

ZIP—

CountyLinn County

How does Central City Water Supply compare with other water systems in Linn County?

By EPA's size categories, Central City Water Supply is a small system (501 to 3,300 people). Linn County has 82 active public water systems. Its population served is about half of the county average of 2,739 people per system, and accounts for 0.6% of the 224,589 people reported by systems filed under the county. Across Iowa, the 1,828 active systems average 1,718 people each. Nationally, the average active community water system reports serving 6,703 people, so Central City Water Supply is well below 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. Iowa has 1,084 active community water systems, 59% of the state's 1,828 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,502 Iowa systems (82%) list groundwater as their primary source.

Who owns and regulates Central City Water Supply?

EPA lists Central City Water Supply as owned by a local government. The IA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 23 of the 82 active systems in Linn County (28%) are also owned by a local government.

Does Central City Water Supply have drinking water violations?

EPA's records list 11 violations for this system; 3 are health-based, and the most recent began in July 2013. The violations listed here began between April 1988 and July 2013. By type: 7 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 Total coliform bacteria (TCR) (3 of them). EPA lists 11 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	Total trihalomethanes (TTHM)code 2950	No	Resolved
2013-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2005-07-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Haloacetic acids (HAA5)code 2456	No	Resolved
2004-11-01	Public notice, recordkeeping or otherVariance/Exemption/Other Compliance · code 08	Not reported	No	Resolved
2004-08-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2004-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2004-03-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22	Total coliform bacteria (TCR)code 3100	Yes	Resolved
2002-01-01	Monitoring and reportingMonitoring, Regular · code 03	Arseniccode 1005	No	Resolved
2002-01-01	Monitoring and reportingMonitoring, Regular · code 03	Arseniccode 1005	No	Resolved
1991-04-01	Monitoring and reportingMonitoring, Regular · code 03	Combined Radium (-226 and -228)code 4010	No	Resolved
1988-04-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved

All 11 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.

Central City Water Supply: frequently asked questions

Who runs Central City Water Supply?

Central City Water Supply (PWSID IA5720010) is a community water system owned by a local government. It is regulated by the IA state drinking water program.

How many people does Central City Water Supply serve?

Central City Water Supply reports serving 1,264 people through 586 service connections in Linn County, Iowa.

Where does Central City Water Supply 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 Central City Water Supply have any drinking water violations?

EPA's records list 11 violations for this system; 3 are 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 Central City Water Supply'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. EPA's records list 11 violations for this system; 3 are 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 IA state drinking water program.

Where can I find Central City Water Supply's water quality report?

As a community water system, Central City Water Supply 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 Linn County

Water system	County	Population served	Type	Source
Cedar Rapids Water Department	Linn	142,364	Community	Groundwater under influence of surface water
Marion Municipal Water Dept	Linn	41,623	Community	Groundwater
Hiawatha Water Dept	Linn	7,183	Community	Groundwater
Mount Vernon Water Supply	Linn	4,527	Community	Groundwater
Fairfax Water Supply	Linn	2,828	Community	Groundwater
Center Point Water Supply	Linn	2,579	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, “Central City Water Supply, PWSID IA5720010, Iowa”, https://aquacensus.com/water-systems/iowa/central-city-water-supply-ia5720010 (data as of October 1, 2026).