Public water system · IA9680085
ActiveRidgeway, City of
At a glance
City of Ridgeway (PWSID IA9680085) is an active community water system in Winneshiek County, Iowa. It reports serving 275 people through 135 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
275
Service connections
135
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Ridgeway compare with other water systems in Winneshiek County?
By EPA's size categories, City of Ridgeway is a very small system (500 people or fewer). Winneshiek County has 43 active public water systems. Its population served is about 20% below the county average of 343 people per system, and accounts for 1.9% of the 14,733 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 City of Ridgeway 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 City of Ridgeway?
EPA lists City of Ridgeway 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. 13 of the 43 active systems in Winneshiek County (30%) are also owned by a local government.
Does City of Ridgeway have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2019. The violations listed here began between July 1988 and October 2019. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Gross alpha (excluding radon and uranium) (2 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2019-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2001-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1992-07-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1989-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Resolved |
| 1989-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Resolved |
| 1989-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Resolved |
| 1989-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Resolved |
| 1989-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Resolved |
| 1989-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1989-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 1989-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Resolved |
| 1988-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
The 12 most recent 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.
City of Ridgeway: frequently asked questions
Who runs City of Ridgeway?
City of Ridgeway (PWSID IA9680085) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does City of Ridgeway serve?
City of Ridgeway reports serving 275 people through 135 service connections in Winneshiek County, Iowa.
Where does City of Ridgeway 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 City of Ridgeway have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2019. 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 City of Ridgeway'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in October 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find City of Ridgeway's water quality report?
As a community water system, City of Ridgeway 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 Winneshiek County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Decorah Water Department | Winneshiek | 7,615 | Community | Groundwater |
| Calmar Water Supply | Winneshiek | 1,125 | Community | Groundwater |
| Ossian Water Supply | Winneshiek | 802 | Community | Groundwater |
| Freeport Water District | Winneshiek | 775 | Community | Groundwater |
| The Country Express | Winneshiek | 515 | Transient non-community | Groundwater |
| Turkey Valley Community School | Winneshiek | 490 | Non-transient non-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, “Ridgeway, City of, PWSID IA9680085, Iowa”, https://aquacensus.com/water-systems/iowa/ridgeway-city-of-ia9680085 (data as of October 1, 2026).