Public water system · IA1471069
ActiveRalston Water Treatment Plant
At a glance
Ralston Water Treatment Plant (PWSID IA1471069) is an active community water system in Carroll County, Iowa. It reports serving 75 people through 38 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; none is health-based, and the most recent began in December 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75
Service connections
38
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Ralston Water Treatment Plant compare with other water systems in Carroll County?
By EPA's size categories, Ralston Water Treatment Plant is a very small system (500 people or fewer). Carroll County has 13 active public water systems. Its population served is well below the county average of 1,519 people per system, and accounts for 0.4% of the 19,740 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 Ralston Water Treatment Plant 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 Ralston Water Treatment Plant?
EPA lists Ralston Water Treatment Plant 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. 12 of the 13 active systems in Carroll County (92%) are also owned by a local government.
Does Ralston Water Treatment Plant have drinking water violations?
EPA's records list 10 violations for this system; none is health-based, and the most recent began in December 2023. The violations listed here began between April 1988 and December 2023. By type: 10 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (2 of them). EPA lists 10 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 |
|---|---|---|---|---|
| 2023-12-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2001-10-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1990-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1988-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Resolved |
| 1988-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Bariumcode 1010 | No | Resolved |
| 1988-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Fluoridecode 1025 | No | Resolved |
| 1988-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chromiumcode 1020 | No | Resolved |
| 1988-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 1988-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Mercurycode 1035 | No | Resolved |
| 1988-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Seleniumcode 1045 | No | Resolved |
All 10 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.
Ralston Water Treatment Plant: frequently asked questions
Who runs Ralston Water Treatment Plant?
Ralston Water Treatment Plant (PWSID IA1471069) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Ralston Water Treatment Plant serve?
Ralston Water Treatment Plant reports serving 75 people through 38 service connections in Carroll County, Iowa.
Where does Ralston Water Treatment Plant 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 Ralston Water Treatment Plant have any drinking water violations?
EPA's records list 10 violations for this system; none is health-based, and the most recent began in December 2023. 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 Ralston Water Treatment Plant'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 10 violations for this system; none is health-based, and the most recent began in December 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Ralston Water Treatment Plant's water quality report?
As a community water system, Ralston Water Treatment Plant 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 Carroll County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Carroll Municipal Water Supply | Carroll | 10,184 | Community | Groundwater |
| West Central Rwa - Nish System | Carroll | 3,573 | Community | Groundwater |
| Manning Water Supply | Carroll | 1,392 | Community | Groundwater |
| Coon Rapids Municipal Utilities | Carroll | 1,242 | Community | Groundwater |
| Glidden Water Supply | Carroll | 1,140 | Community | Groundwater |
| Arcadia Water Supply | Carroll | 525 | 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, “Ralston Water Treatment Plant, PWSID IA1471069, Iowa”, https://aquacensus.com/water-systems/iowa/ralston-water-treatment-plant-ia1471069 (data as of October 1, 2026).