Public water system · IA5735045
ActiveHiawatha Water Dept
At a glance
Hiawatha Water Dept (PWSID IA5735045) is an active community water system in Linn County, Iowa. It reports serving 7,183 people through 2,600 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 1997.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,183
Service connections
2,600
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Hiawatha Water Dept compare with other water systems in Linn County?
By EPA's size categories, Hiawatha Water Dept is a medium system (3,301 to 10,000 people). Linn County has 82 active public water systems, and Hiawatha Water Dept is the 3rd-largest of them by population served. Its population served is about 162% above the county average of 2,739 people per system, and accounts for 3.2% 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 Hiawatha Water Dept is roughly in line with 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 Hiawatha Water Dept?
EPA lists Hiawatha Water Dept 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 Hiawatha Water Dept have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 1997. By type: 1 monitoring and reporting. The contaminant or rule involved is Total coliform bacteria (TCR). EPA lists 1 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 |
|---|---|---|---|---|
| 1997-10-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
The one violation in EPA's records.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.
Hiawatha Water Dept: frequently asked questions
Who runs Hiawatha Water Dept?
Hiawatha Water Dept (PWSID IA5735045) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Hiawatha Water Dept serve?
Hiawatha Water Dept reports serving 7,183 people through 2,600 service connections in Linn County, Iowa.
Where does Hiawatha Water Dept 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 Hiawatha Water Dept have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 1997. 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 Hiawatha Water Dept'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 one violation for this system; it is not health-based, and the most recent began in October 1997. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Hiawatha Water Dept's water quality report?
As a community water system, Hiawatha Water Dept 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 |
| 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 |
| Ely Water Supply | Linn | 2,328 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Hiawatha Water Dept, PWSID IA5735045, Iowa”, https://aquacensus.com/water-systems/iowa/hiawatha-water-dept-ia5735045 (data as of October 1, 2026).