Public water system · MS0360039
ActiveOlin Winchester-Oxford
At a glance
Olin Winchester-Oxford (PWSID MS0360039) is an active non-transient non-community water system in Lafayette County, Mississippi. It reports serving 400 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as under public/private ownership. EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
400
Service connections
1
Primary source
GW
Groundwater
System type
NTNCWS
Non-transient non-community water system
System record
How does Olin Winchester-Oxford compare with other water systems in Lafayette County?
By EPA's size categories, Olin Winchester-Oxford is a very small system (500 people or fewer). Lafayette County has 22 active public water systems. Its population served is well below the county average of 3,311 people per system, and accounts for 0.5% of the 72,839 people reported by systems filed under the county. Across Mississippi, the 1,133 active systems average 2,832 people each. Nationally, the average active non-transient non-community water system reports serving 430 people, so Olin Winchester-Oxford is roughly in line with that figure.
What does “non-transient non-community water system” mean?
A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. Mississippi has 78 active non-transient non-community water systems, 6.9% 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 Olin Winchester-Oxford?
EPA lists Olin Winchester-Oxford 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. 20 of the 22 active systems in Lafayette County (91%) are also under public/private ownership.
Does Olin Winchester-Oxford have drinking water violations?
EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in October 2024. The violations listed here began between October 1980 and October 2024. By type: 5 monitoring and reporting, 2 contaminant level above the legal limit, 1 required treatment not met, 1 reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total coliform bacteria (TCR) (3 of them). EPA lists 6 as resolved and 4 as archived. 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. 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.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-04-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitrate-Nitritecode 1038 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Resolved |
| 2021-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitritecode 1041 | No | Resolved |
| 2000-02-23 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1998-12-23 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Archived |
| 1995-02-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1980-10-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
All 10 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.
Olin Winchester-Oxford: frequently asked questions
Who runs Olin Winchester-Oxford?
Olin Winchester-Oxford (PWSID MS0360039) is a non-transient non-community water system under public/private ownership. It is regulated by the MS state drinking water program.
How many people does Olin Winchester-Oxford serve?
Olin Winchester-Oxford reports serving 400 people through 1 service connection in Lafayette County, Mississippi.
Where does Olin Winchester-Oxford 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 Olin Winchester-Oxford have any drinking water violations?
EPA's records list 10 violations for this system; 3 are health-based, and the most recent began in October 2024. 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 Olin Winchester-Oxford'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 10 violations for this system; 3 are health-based, and the most recent began in October 2024. For current results, consult EPA ECHO, or the MS state drinking water program.
Where can I find Olin Winchester-Oxford's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Olin Winchester-Oxford is a non-transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Lafayette County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Oxford | Lafayette | 28,500 | Community | Groundwater |
| University of Mississippi | Lafayette | 26,874 | Community | Groundwater |
| Anchor Water Association | Lafayette | 2,051 | Community | Groundwater |
| Taylor Water Association | Lafayette | 1,962 | Community | Groundwater |
| Westover Water Association, Inc. | Lafayette | 1,771 | Community | Groundwater |
| Hopewell Water Association | Lafayette | 1,684 | Community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Olin Winchester-Oxford, PWSID MS0360039, Mississippi”, https://aquacensus.com/water-systems/mississippi/olin-winchester-oxford-ms0360039 (data as of October 1, 2026).