Public water system · IA7540174
ActiveLemars Water Department
At a glance
Lemars Water Department (PWSID IA7540174) is an active community water system in Plymouth County, Iowa. It reports serving 10,606 people through 4,725 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 July 1992.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
10,606
Service connections
4,725
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Lemars Water Department compare with other water systems in Plymouth County?
By EPA's size categories, Lemars Water Department is a large system (10,001 to 100,000 people). Plymouth County has 13 active public water systems, and Lemars Water Department is the largest of them by population served. Its population served is about 7.8 times the county average of 1,362 people per system, and accounts for 60% of the 17,703 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 Lemars Water Department is about 58% above 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 Lemars Water Department?
EPA lists Lemars Water Department 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 Plymouth County (77%) are also owned by a local government.
Does Lemars Water Department have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in July 1992. The violations listed here began between April 1991 and July 1992. By type: 12 monitoring and reporting. The contaminants or rules involved are Lead and Copper Rule, Combined Radium (-226 and -228), Styrene and Tetrachloroethylene. 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 |
|---|---|---|---|---|
| 1992-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | No | Resolved |
| 1991-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | No | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Styrenecode 2996 | No | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Xylenes, Totalcode 2955 | No | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Dichloromethanecode 2964 | No | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 1991-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | 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.
Lemars Water Department: frequently asked questions
Who runs Lemars Water Department?
Lemars Water Department (PWSID IA7540174) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Lemars Water Department serve?
Lemars Water Department reports serving 10,606 people through 4,725 service connections in Plymouth County, Iowa.
Where does Lemars Water Department 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 Lemars Water Department 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 July 1992. 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 Lemars Water Department'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 July 1992. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Lemars Water Department's water quality report?
As a community water system, Lemars Water Department 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 Plymouth County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Remsen Municipal Utilities | Plymouth | 1,678 | Community | Groundwater |
| Akron, City of | Plymouth | 1,558 | Community | Groundwater |
| Kingsley Water Supply | Plymouth | 1,396 | Community | Groundwater |
| Hinton Water Supply | Plymouth | 935 | Community | Groundwater |
| Merrill Municipal Water Supply | Plymouth | 717 | Community | Groundwater |
| Country Celebrations Event Center | Plymouth | 200 | 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, “Lemars Water Department, PWSID IA7540174, Iowa”, https://aquacensus.com/water-systems/iowa/lemars-water-department-ia7540174 (data as of October 1, 2026).