Public water system · IA4647090
ActiveLivermore Water Supply
At a glance
Livermore Water Supply (PWSID IA4647090) is an active community water system in Humboldt County, Iowa. It reports serving 383 people through 191 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in July 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
383
Service connections
191
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Livermore Water Supply compare with other water systems in Humboldt County?
By EPA's size categories, Livermore Water Supply is a very small system (500 people or fewer). Humboldt County has 13 active public water systems, and Livermore Water Supply is the 3rd-largest of them by population served. Its population served is about 30% below the county average of 550 people per system, and accounts for 5.4% of the 7,145 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 Livermore Water Supply 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 Livermore Water Supply?
EPA lists Livermore 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. 11 of the 13 active systems in Humboldt County (85%) are also owned by a local government.
Does Livermore Water Supply have drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in July 2018. The violations listed here began between April 2012 and July 2018. By type: 2 monitoring and reporting, 1 required treatment not met and 1 contaminant level above the legal limit. The contaminants or rules involved are Nitrite, Nitrate, Lead and Copper Rule and Arsenic. EPA lists 3 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 |
|---|---|---|---|---|
| 2018-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2018-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2016-02-17 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Unaddressed |
| 2012-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Arseniccode 1005 | Yes | Resolved |
All 4 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.
Livermore Water Supply: frequently asked questions
Who runs Livermore Water Supply?
Livermore Water Supply (PWSID IA4647090) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Livermore Water Supply serve?
Livermore Water Supply reports serving 383 people through 191 service connections in Humboldt County, Iowa.
Where does Livermore 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 Livermore Water Supply have any drinking water violations?
EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in July 2018. 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 Livermore 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. EPA's records list 4 violations for this system; 2 are health-based, and the most recent began in July 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Livermore Water Supply's water quality report?
As a community water system, Livermore 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 Humboldt County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Humboldt Municipal Water Dept | Humboldt | 4,792 | Community | Groundwater under influence of surface water |
| Dakota City Water Supply | Humboldt | 769 | Community | Groundwater |
| Bode Municipal Water Supply | Humboldt | 304 | Community | Groundwater |
| Renwick Munic Water Supply | Humboldt | 234 | Community | Groundwater |
| Thor Water Works | Humboldt | 181 | Community | Groundwater |
| Rutland Water Supply | Humboldt | 116 | 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, “Livermore Water Supply, PWSID IA4647090, Iowa”, https://aquacensus.com/water-systems/iowa/livermore-water-supply-ia4647090 (data as of October 1, 2026).