Public water system · MS0580004
ActiveOak Hill Water Assn
At a glance
Oak Hill Water Assn (PWSID MS0580004) is an active community water system in Pontotoc County, Mississippi. It reports serving 4,739 people through 1,795 service connections. Its primary water source is groundwater, and EPA lists it as under public/private ownership. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,739
Service connections
1,795
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Oak Hill Water Assn compare with other water systems in Pontotoc County?
By EPA's size categories, Oak Hill Water Assn is a medium system (3,301 to 10,000 people). Pontotoc County has 12 active public water systems, and Oak Hill Water Assn is the 4th-largest of them by population served. Its population served is about 55% above the county average of 3,060 people per system, and accounts for 13% of the 36,716 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 Oak Hill Water Assn is about 29% 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 Oak Hill Water Assn?
EPA lists Oak Hill Water Assn 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. 8 of the 12 active systems in Pontotoc County (67%) are also under public/private ownership.
Does Oak Hill Water Assn have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2015. The violations listed here began between May 2012 and November 2015. By type: 11 monitoring and reporting and 1 contaminant level above the legal limit. 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 |
|---|---|---|---|---|
| 2015-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2012-10-01 | 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, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2012-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2012-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-228code 4030 | No | Resolved |
| 2012-07-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | No | Resolved |
| 2012-05-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | 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.
Oak Hill Water Assn: frequently asked questions
Who runs Oak Hill Water Assn?
Oak Hill Water Assn (PWSID MS0580004) is a community water system under public/private ownership. It is regulated by the MS state drinking water program.
How many people does Oak Hill Water Assn serve?
Oak Hill Water Assn reports serving 4,739 people through 1,795 service connections in Pontotoc County, Mississippi.
Where does Oak Hill Water Assn 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 Oak Hill Water Assn have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in November 2015. 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 Oak Hill Water Assn'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, one is health-based, and the most recent began in November 2015. For current results, consult the system's annual water quality report, EPA ECHO, or the MS state drinking water program.
Where can I find Oak Hill Water Assn's water quality report?
As a community water system, Oak Hill Water Assn 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 Pontotoc County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Pontotoc | Pontotoc | 9,398 | Community | Groundwater |
| Algoma Water Association | Pontotoc | 6,879 | Community | Groundwater |
| East Pontotoc Water Assn | Pontotoc | 5,170 | Community | Groundwater |
| Town of Ecru | Pontotoc | 2,215 | Community | Groundwater |
| MUD Creek Water Association #1 | Pontotoc | 1,764 | Community | Groundwater |
| Toccopola Water Association #2 | Pontotoc | 1,592 | 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, “Oak Hill Water Assn, PWSID MS0580004, Mississippi”, https://aquacensus.com/water-systems/mississippi/oak-hill-water-assn-ms0580004 (data as of October 1, 2026).