Public water system · IA1957064
ActiveLawler Water Supply
At a glance
Lawler Water Supply (PWSID IA1957064) is an active community water system in Chickasaw County, Iowa. It reports serving 406 people through 241 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in October 2023.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
406
Service connections
241
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Lawler Water Supply compare with other water systems in Chickasaw County?
By EPA's size categories, Lawler Water Supply is a very small system (500 people or fewer). Chickasaw County has 21 active public water systems, and Lawler Water Supply is the 4th-largest of them by population served. Its population served is roughly in line with the county average of 375 people per system, and accounts for 5.2% of the 7,872 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 Lawler 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 Lawler Water Supply?
EPA lists Lawler 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. 9 of the 21 active systems in Chickasaw County (43%) are also owned by a local government.
Does Lawler Water Supply have drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in October 2023. The violations listed here began between April 1988 and October 2023. By type: 7 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Nitrate (3 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2023-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01 | Nitritecode 1041 | Yes | Resolved |
| 2020-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2017-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2009-01-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2004-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 1998-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 1993-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 1988-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
All 8 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.
Lawler Water Supply: frequently asked questions
Who runs Lawler Water Supply?
Lawler Water Supply (PWSID IA1957064) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Lawler Water Supply serve?
Lawler Water Supply reports serving 406 people through 241 service connections in Chickasaw County, Iowa.
Where does Lawler 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 Lawler Water Supply have any drinking water violations?
EPA's records list 8 violations for this system; 1 is health-based, and the most recent began in October 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 Lawler 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 8 violations for this system; 1 is health-based, and the most recent began in October 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 Lawler Water Supply's water quality report?
As a community water system, Lawler 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 Chickasaw County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| New Hampton Water Supply | Chickasaw | 3,494 | Community | Groundwater |
| Nashua Water Supply | Chickasaw | 1,551 | Community | Groundwater |
| Fredericksburg Water Supply | Chickasaw | 987 | Community | Groundwater |
| Alta Vista Water Department | Chickasaw | 227 | Community | Groundwater |
| Ionia Water Supply | Chickasaw | 226 | Community | Groundwater |
| Little Brown Church | Chickasaw | 183 | 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, “Lawler Water Supply, PWSID IA1957064, Iowa”, https://aquacensus.com/water-systems/iowa/lawler-water-supply-ia1957064 (data as of October 1, 2026).