Public water system · IA5157091
ActiveLockridge Muni Water Supply
At a glance
Lockridge Muni Water Supply (PWSID IA5157091) is an active community water system in Jefferson County, Iowa. It reports serving 244 people through 175 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in August 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
244
Service connections
175
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Lockridge Muni Water Supply compare with other water systems in Jefferson County?
By EPA's size categories, Lockridge Muni Water Supply is a very small system (500 people or fewer). Jefferson County has 8 active public water systems, and Lockridge Muni Water Supply is the 5th-largest of them by population served. Its population served is well below the county average of 1,442 people per system, and accounts for 2.1% of the 11,535 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 Lockridge Muni 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. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 156 Iowa systems (8.5%) list purchased groundwater as their primary source.
Who owns and regulates Lockridge Muni Water Supply?
EPA lists Lockridge Muni 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. 5 of the 8 active systems in Jefferson County (63%) are also owned by a local government.
Does Lockridge Muni Water Supply have drinking water violations?
EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in August 2010. The violations listed here began between July 1979 and August 2010. By type: 9 contaminant level above the legal limit and 2 monitoring and reporting. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 7 as archived and 4 as resolved. 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. 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 |
|---|---|---|---|---|
| 2010-08-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1995-10-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 1992-08-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1992-05-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Acute (TCR) · code 21 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1980-09-19 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Archived |
| 1980-09-19 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Gross alpha (excluding radon and uranium)code 4000 | Yes | Archived |
| 1980-07-23 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
| 1979-07-30 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
| 1979-07-30 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Archived |
| 1979-07-30 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Radium (-226 and -228)code 4010 | Yes | Archived |
| 1979-07-30 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
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.
Lockridge Muni Water Supply: frequently asked questions
Who runs Lockridge Muni Water Supply?
Lockridge Muni Water Supply (PWSID IA5157091) is a community water system owned by a local government. It is regulated by the IA state drinking water program.
How many people does Lockridge Muni Water Supply serve?
Lockridge Muni Water Supply reports serving 244 people through 175 service connections in Jefferson County, Iowa.
Where does Lockridge Muni Water Supply get its water?
EPA SDWIS lists this system's primary water source as purchased groundwater. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own.
Does Lockridge Muni Water Supply have any drinking water violations?
EPA's records list 11 violations for this system; 9 are health-based, and the most recent began in August 2010. 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 Lockridge Muni 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 11 violations for this system; 9 are health-based, and the most recent began in August 2010. For current results, consult the system's annual water quality report, EPA ECHO, or the IA state drinking water program.
Where can I find Lockridge Muni Water Supply's water quality report?
As a community water system, Lockridge Muni 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 Jefferson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Fairfield Water Supply | Jefferson | 9,821 | Community | Groundwater |
| Jefferson County Rural Water District | Jefferson | 468 | Community | Purchased surface water |
| Batavia Water Works | Jefferson | 430 | Community | Purchased surface water |
| Libertyville Water Works | Jefferson | 304 | Community | Purchased groundwater |
| Fairfield Estates Mobile Home Park | Jefferson | 140 | Community | Purchased groundwater |
| Ila Campus LLC | Jefferson | 68 | 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, “Lockridge Muni Water Supply, PWSID IA5157091, Iowa”, https://aquacensus.com/water-systems/iowa/lockridge-muni-water-supply-ia5157091 (data as of October 1, 2026).