Public water system · MS0260003
ActiveCastalian W/A
At a glance
Castalian W/A (PWSID MS0260003) is an active community water system in Holmes County, Mississippi. It reports serving 321 people through 119 service connections. Its primary water source is purchased groundwater, and EPA lists it as under public/private ownership. EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2021.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
321
Service connections
119
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Castalian W/A compare with other water systems in Holmes County?
By EPA's size categories, Castalian W/A is a very small system (500 people or fewer). Holmes County has 19 active public water systems. Its population served is well below the county average of 1,055 people per system, and accounts for 1.6% of the 20,044 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 Castalian W/A 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. Mississippi has 947 active community water systems, 84% of the state's 1,133 active systems. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. 66 Mississippi systems (5.8%) list purchased groundwater as their primary source.
Who owns and regulates Castalian W/A?
EPA lists Castalian W/A as under public/private ownership. 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. 9 of the 19 active systems in Holmes County (47%) are also under public/private ownership.
Does Castalian W/A have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2021. By type: 1 monitoring and reporting. The contaminant or rule involved is Lead and Copper Rule. EPA lists 1 as unaddressed. 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 |
|---|---|---|---|---|
| 2021-12-09 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Unaddressed |
The one violation in EPA's records.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.
Castalian W/A: frequently asked questions
Who runs Castalian W/A?
Castalian W/A (PWSID MS0260003) is a community water system under public/private ownership. It is regulated by the MS state drinking water program.
How many people does Castalian W/A serve?
Castalian W/A reports serving 321 people through 119 service connections in Holmes County, Mississippi.
Where does Castalian W/A 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 Castalian W/A have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in December 2021. 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 Castalian W/A'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 one violation for this system; it is not health-based, and the most recent began in December 2021. For current results, consult the system's annual water quality report, EPA ECHO, or the MS state drinking water program.
Where can I find Castalian W/A's water quality report?
As a community water system, Castalian W/A 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 Holmes County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Durant | Holmes | 2,932 | Community | Groundwater |
| Lebanon W/A-West | Holmes | 1,742 | Community | Groundwater |
| Sweet Home Water & Sewer Dist | Holmes | 1,695 | Community | Groundwater |
| Town of Tchula | Holmes | 1,642 | Community | Groundwater |
| City of Lexington | Holmes | 1,600 | Community | Groundwater |
| Town of Pickens | Holmes | 1,587 | 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, “Castalian W/A, PWSID MS0260003, Mississippi”, https://aquacensus.com/water-systems/mississippi/castalian-w-a-ms0260003 (data as of October 1, 2026).