Public water system · IA8580057
ActiveSlater Muni Water Dept
At a glance
Slater Muni Water Dept (PWSID IA8580057) is an active community water system in Story County, Iowa. It reports serving 1,548 people through 641 service connections. Its primary water source is purchased groundwater under influence, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,548
Service connections
641
Primary source
GUP
Purchased groundwater under influence
System type
CWS
Community water system
System record
How does Slater Muni Water Dept compare with other water systems in Story County?
By EPA's size categories, Slater Muni Water Dept is a small system (501 to 3,300 people). Story County has 20 active public water systems, and Slater Muni Water Dept is the 6th-largest of them by population served. Its population served is well below the county average of 6,045 people per system, and accounts for 1.3% of the 120,903 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 Slater Muni Water Dept 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 groundwater under the influence of surface water means the system buys that kind of water from another public water system. 20 Iowa systems (1.1%) list purchased groundwater under influence as their primary source.
Who owns and regulates Slater Muni Water Dept?
EPA lists Slater Muni Water Dept 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. 14 of the 20 active systems in Story County (70%) are also owned by a local government.
Does Slater Muni Water Dept have drinking water violations?
EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in October 2024. The violations listed here began between April 1991 and October 2024. By type: 9 monitoring and reporting and 2 contaminant level above the legal limit. The contaminant or rule involved most often is Haloacetic acids (HAA5) (2 of them). EPA lists 10 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2022-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitritecode 1041 | Yes | Resolved |
| 2019-11-01 | Monitoring and reportingLead Consumer Notice · code 66 | Lead and Copper Rulecode 5000 | No | Unaddressed |
| 2017-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2017-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2008-12-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2006-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2000-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1998-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
All 11 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.
Slater Muni Water Dept: frequently asked questions
Who runs Slater Muni Water Dept?
Slater Muni Water Dept (PWSID IA8580057) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Slater Muni Water Dept serve?
Slater Muni Water Dept reports serving 1,548 people through 641 service connections in Story County, Iowa.
Where does Slater Muni Water Dept get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater under influence. Purchased groundwater under the influence of surface water means the system buys that kind of water from another public water system.
Does Slater Muni Water Dept have any drinking water violations?
EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in October 2024. 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 Slater Muni Water Dept'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 11 violations for this system; 2 are health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Slater Muni Water Dept's water quality report?
As a community water system, Slater Muni Water Dept 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 Story County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ames Water Treatment Plant | Story | 55,177 | Community | Groundwater |
| Isu | Story | 42,000 | Community | Purchased groundwater |
| Nevada Water Supply | Story | 6,925 | Community | Groundwater |
| Huxley Waterworks Dept | Story | 4,244 | Community | Groundwater |
| Story City Water Dept | Story | 3,357 | Community | Groundwater |
| Roland Water Supply | Story | 1,394 | 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, “Slater Muni Water Dept, PWSID IA8580057, Iowa”, https://aquacensus.com/water-systems/iowa/slater-muni-water-dept-ia8580057 (data as of October 1, 2026).