Public water system · IA6060006
ActiveLittle Rock Water Supply
At a glance
Little Rock Water Supply (PWSID IA6060006) is an active community water system in Lyon County, Iowa. It reports serving 441 people through 235 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is health-based, and the most recent began in June 2003.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
441
Service connections
235
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Little Rock Water Supply compare with other water systems in Lyon County?
By EPA's size categories, Little Rock Water Supply is a very small system (500 people or fewer). Lyon County has 12 active public water systems. Its population served is about 57% below the county average of 1,016 people per system, and accounts for 3.6% of the 12,196 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 Little Rock 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 156 Iowa systems (8.5%) list purchased groundwater as their primary source.
Who owns and regulates Little Rock Water Supply?
EPA lists Little Rock 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. 8 of the 12 active systems in Lyon County (67%) are also owned by a local government.
Does Little Rock Water Supply have drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in June 2003. By type: 1 required treatment not met. The contaminant or rule involved is Lead and Copper Rule. 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 |
|---|---|---|---|---|
| 2003-06-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | 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.
Little Rock Water Supply: frequently asked questions
Who runs Little Rock Water Supply?
Little Rock Water Supply (PWSID IA6060006) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Little Rock Water Supply serve?
Little Rock Water Supply reports serving 441 people through 235 service connections in Lyon County, Iowa.
Where does Little Rock Water Supply get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Little Rock Water Supply have any drinking water violations?
EPA's records list one violation for this system; it is health-based, and the most recent began in June 2003. 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 Little Rock 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 one violation for this system; it is health-based, and the most recent began in June 2003. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Little Rock Water Supply's water quality report?
As a community water system, Little Rock 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 Lyon County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rock Rapids Municipal Water Works | Lyon | 2,611 | Community | Groundwater |
| Lyon-Sioux Rws-Doon | Lyon | 1,765 | Community | Groundwater |
| Lyon-Sioux Rws-Big Sioux | Lyon | 1,530 | Community | Groundwater |
| Lyon-Sioux Rws-Rock Rapids | Lyon | 1,187 | Community | Purchased groundwater |
| George Water Supply | Lyon | 1,082 | Community | Groundwater |
| Inwood Water Supply | Lyon | 928 | Community | Purchased 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, “Little Rock Water Supply, PWSID IA6060006, Iowa”, https://aquacensus.com/water-systems/iowa/little-rock-water-supply-ia6060006 (data as of October 1, 2026).