Public water system · IA8676027
ActiveToledo Water Supply
At a glance
Toledo Water Supply (PWSID IA8676027) is an active community water system in Tama County, Iowa. It reports serving 2,399 people through 960 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, 4 are health-based, and the most recent began in July 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,399
Service connections
960
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Toledo Water Supply compare with other water systems in Tama County?
By EPA's size categories, Toledo Water Supply is a small system (501 to 3,300 people). Tama County has 13 active public water systems, and Toledo Water Supply is the 3rd-largest of them by population served. Its population served is about 23% above the county average of 1,947 people per system, and accounts for 9.5% of the 25,305 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 Toledo Water Supply is about 64% 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 Toledo Water Supply?
EPA lists Toledo 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. 10 of the 13 active systems in Tama County (77%) are also owned by a local government.
Does Toledo Water Supply have drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in July 2019. The violations listed here began between July 1995 and July 2019. By type: 6 monitoring and reporting, 4 contaminant level above the legal limit and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Combined Radium (-226 and -228) (6 of them). EPA lists 11 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 |
|---|---|---|---|---|
| 2019-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2017-04-29 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2015-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2015-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 2015-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2015-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Resolved |
| 2008-10-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 2003-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Cadmiumcode 1015 | No | Archived |
| 2001-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 2001-06-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2000-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Arseniccode 1005 | No | Resolved |
| 1995-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | 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.
Toledo Water Supply: frequently asked questions
Who runs Toledo Water Supply?
Toledo Water Supply (PWSID IA8676027) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Toledo Water Supply serve?
Toledo Water Supply reports serving 2,399 people through 960 service connections in Tama County, Iowa.
Where does Toledo Water Supply 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 Toledo Water Supply have any drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in July 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 Toledo 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. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in July 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 Toledo Water Supply's water quality report?
As a community water system, Toledo 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 Tama County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Poweshiek Water Association | Tama | 13,920 | Community | Groundwater |
| Tama Water Supply | Tama | 3,130 | Community | Groundwater |
| Traer Municipal Water Plant | Tama | 1,583 | Community | Groundwater |
| Dysart Water Supply | Tama | 1,281 | Community | Purchased groundwater |
| Iowa Premium LLC | Tama | 841 | Non-transient non-community | Groundwater |
| Gladbrook Water Supply | Tama | 799 | 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, “Toledo Water Supply, PWSID IA8676027, Iowa”, https://aquacensus.com/water-systems/iowa/toledo-water-supply-ia8676027 (data as of October 1, 2026).