Public water system · MS0640007
ActiveCity of Mendenhall
At a glance
City of Mendenhall (PWSID MS0640007) is an active community water system in Simpson County, Mississippi. It reports serving 2,500 people through 1,094 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 2012.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,500
Service connections
1,094
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Mendenhall compare with other water systems in Simpson County?
By EPA's size categories, City of Mendenhall is a small system (501 to 3,300 people). Simpson County has 16 active public water systems, and City of Mendenhall is the 6th-largest of them by population served. Its population served is about 14% above the county average of 2,196 people per system, and accounts for 7.1% of the 35,130 people reported by systems filed under the county. Across Mississippi, the 1,133 active systems average 2,832 people each. Nationally, the average active community water system reports serving 6,703 people, so City of Mendenhall is about 63% 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. Mississippi has 947 active community water systems, 84% of the state's 1,133 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,053 Mississippi systems (93%) list groundwater as their primary source.
Who owns and regulates City of Mendenhall?
EPA lists City of Mendenhall as owned by a local government. The MS state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 4 of the 16 active systems in Simpson County (25%) are also owned by a local government.
Does City of Mendenhall 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 2012. The violations listed here began between July 2011 and July 2012. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Radium-226 (4 of them). 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 |
|---|---|---|---|---|
| 2012-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2012-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2012-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2012-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2012-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2012-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2011-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2011-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | 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.
City of Mendenhall: frequently asked questions
Who runs City of Mendenhall?
City of Mendenhall (PWSID MS0640007) is a community water system owned by a local government. It is regulated by the MS state drinking water program.
How many people does City of Mendenhall serve?
City of Mendenhall reports serving 2,500 people through 1,094 service connections in Simpson County, Mississippi.
Where does City of Mendenhall 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 City of Mendenhall 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 2012. 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 City of Mendenhall'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 2012. For current results, consult the system's annual water quality report, EPA ECHO, or the MS state drinking water program.
Where can I find City of Mendenhall's water quality report?
As a community water system, City of Mendenhall 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 Simpson County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Okatoma Water Association #2 | Simpson | 5,866 | Community | Groundwater |
| Smiths Crossing Water Assn | Simpson | 4,480 | Community | Groundwater |
| Okatoma Water Association #1 | Simpson | 3,981 | Community | Groundwater |
| City of Magee | Simpson | 3,526 | Community | Groundwater |
| New Hope Water Association | Simpson | 2,587 | Community | Groundwater |
| Highway 28 Water Association | Simpson | 2,500 | 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, “City of Mendenhall, PWSID MS0640007, Mississippi”, https://aquacensus.com/water-systems/mississippi/city-of-mendenhall-ms0640007 (data as of October 1, 2026).