Public water system · IA8320098
ActiveEarling Water Supply
At a glance
Earling Water Supply (PWSID IA8320098) is an active community water system in Shelby County, Iowa. It reports serving 397 people through 194 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
397
Service connections
194
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Earling Water Supply compare with other water systems in Shelby County?
By EPA's size categories, Earling Water Supply is a very small system (500 people or fewer). Shelby County has 8 active public water systems, and Earling Water Supply is the 4th-largest of them by population served. Its population served is about 59% below the county average of 976 people per system, and accounts for 5.1% of the 7,809 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 Earling 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 Earling Water Supply?
EPA lists Earling 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 8 active systems in Shelby County (100%) are also owned by a local government.
Does Earling Water Supply have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025. The violations listed here began between January 2004 and July 2025. By type: 2 public notice, recordkeeping or other and 2 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (2 of them). EPA lists 4 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 |
|---|---|---|---|---|
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2017-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2010-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
All 4 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.
Earling Water Supply: frequently asked questions
Who runs Earling Water Supply?
Earling Water Supply (PWSID IA8320098) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Earling Water Supply serve?
Earling Water Supply reports serving 397 people through 194 service connections in Shelby County, Iowa.
Where does Earling 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 Earling Water Supply have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in July 2025. 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 Earling 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 4 violations for this system; none is health-based, and the most recent began in July 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Earling Water Supply's water quality report?
As a community water system, Earling 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 Shelby County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Harlan Municipal Utilities | Shelby | 5,067 | Community | Groundwater |
| Shelby Water Supply | Shelby | 727 | Community | Groundwater |
| Elk Horn Muni Water Works | Shelby | 631 | Community | Groundwater |
| Irwin Municipal Supply | Shelby | 313 | Community | Purchased groundwater |
| Defiance Water Department | Shelby | 250 | Community | Groundwater |
| Panama Water Works | Shelby | 235 | Community | Purchased 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, “Earling Water Supply, PWSID IA8320098, Iowa”, https://aquacensus.com/water-systems/iowa/earling-water-supply-ia8320098 (data as of October 1, 2026).