Public water system · IA2725073
ActiveGarden Grove Water Supply
At a glance
Garden Grove Water Supply (PWSID IA2725073) is an active community water system in Decatur County, Iowa. It reports serving 179 people through 107 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in April 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
179
Service connections
107
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Garden Grove Water Supply compare with other water systems in Decatur County?
By EPA's size categories, Garden Grove Water Supply is a very small system (500 people or fewer). Decatur County has 5 active public water systems, and Garden Grove Water Supply is the 5th-largest of them by population served. Its population served is well below the county average of 7,682 people per system, and accounts for 0.5% of the 38,411 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 Garden Grove 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 surface water means the system buys surface water from another public water system rather than drawing its own. 119 Iowa systems (6.5%) list purchased surface water as their primary source.
Who owns and regulates Garden Grove Water Supply?
EPA lists Garden Grove 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. 3 of the 5 active systems in Decatur County (60%) are also owned by a local government.
Does Garden Grove Water Supply have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in April 2020. The violations listed here began between October 1981 and April 2020. By type: 7 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (2 of them). EPA lists 7 as resolved and 1 as archived. 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. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2020-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2020-01-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2015-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2015-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2012-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2012-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 1997-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1981-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Seleniumcode 1045 | Yes | Archived |
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.
Garden Grove Water Supply: frequently asked questions
Who runs Garden Grove Water Supply?
Garden Grove Water Supply (PWSID IA2725073) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Garden Grove Water Supply serve?
Garden Grove Water Supply reports serving 179 people through 107 service connections in Decatur County, Iowa.
Where does Garden Grove Water Supply get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Garden Grove Water Supply have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in April 2020. 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 Garden Grove 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 8 violations for this system; 1 is health-based, and the most recent began in April 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Garden Grove Water Supply's water quality report?
As a community water system, Garden Grove 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 Decatur County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Rathbun Regional Water Assn (Rathbun) | Decatur + 7 more | 33,000 | Community | Surface water |
| Lamoni Municipal Utilities | Decatur | 2,029 | Community | Surface water |
| Leon Water Supply | Decatur | 1,830 | Community | Surface water |
| Sirwa #3 (Leon) | Decatur | 1,373 | Community | Purchased surface water |
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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, “Garden Grove Water Supply, PWSID IA2725073, Iowa”, https://aquacensus.com/water-systems/iowa/garden-grove-water-supply-ia2725073 (data as of October 1, 2026).