Public water system · IA5731301
ActiveWest Post Estates Addition
At a glance
West Post Estates Addition (PWSID IA5731301) is an active community water system in Linn County, Iowa. It reports serving 85 people through 34 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in April 1997.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
85
Service connections
34
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does West Post Estates Addition compare with other water systems in Linn County?
By EPA's size categories, West Post Estates Addition is a very small system (500 people or fewer). Linn County has 82 active public water systems. Its population served is well below the county average of 2,739 people per system, and accounts for less than 0.1% 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 West Post Estates Addition 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 West Post Estates Addition?
EPA lists West Post Estates Addition as privately owned. 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. 55 of the 82 active systems in Linn County (67%) are also privately owned.
Does West Post Estates Addition have drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in April 1997. The violations listed here began between July 1990 and April 1997. By type: 2 monitoring and reporting and 1 contaminant level above the legal limit. The contaminants or rules involved are Nitrate, Total coliform bacteria (TCR) and Gross alpha (excluding radon and uranium). EPA lists 3 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 |
|---|---|---|---|---|
| 1997-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1992-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1990-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
All 3 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.
West Post Estates Addition: frequently asked questions
Who runs West Post Estates Addition?
West Post Estates Addition (PWSID IA5731301) is a community water system privately owned. It is regulated by the IA state drinking water program.
How many people does West Post Estates Addition serve?
West Post Estates Addition reports serving 85 people through 34 service connections in Linn County, Iowa.
Where does West Post Estates Addition 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 West Post Estates Addition have any drinking water violations?
EPA's records list 3 violations for this system; 1 is health-based, and the most recent began in April 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 West Post Estates Addition'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 3 violations for this system; 1 is health-based, and the most recent began in April 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 West Post Estates Addition's water quality report?
As a community water system, West Post Estates Addition 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, “West Post Estates Addition, PWSID IA5731301, Iowa”, https://aquacensus.com/water-systems/iowa/west-post-estates-addition-ia5731301 (data as of October 1, 2026).