Public water system · MS0450024
ActivePrvwsd-Twin Harbor
At a glance
Prvwsd-Twin Harbor (PWSID MS0450024) is an active community water system in Madison County, Mississippi. It reports serving 2,973 people through 1,126 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,973
Service connections
1,126
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Prvwsd-Twin Harbor compare with other water systems in Madison County?
By EPA's size categories, Prvwsd-Twin Harbor is a small system (501 to 3,300 people). Madison County has 17 active public water systems. Its population served is about 61% below the county average of 7,643 people per system, and accounts for 2.3% of the 129,931 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 Prvwsd-Twin Harbor is about 56% 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 Prvwsd-Twin Harbor?
EPA lists Prvwsd-Twin Harbor as owned by a state 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. 2 of the 17 active systems in Madison County (12%) are also owned by a state government.
Does Prvwsd-Twin Harbor have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2024. The violations listed here began between October 2012 and October 2024. By type: 10 monitoring and reporting, 1 reporting and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule Revisions (2 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 |
|---|---|---|---|---|
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Resolved |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2023-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2012-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | 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 |
| 2012-10-01 | 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-228code 4030 | 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.
Prvwsd-Twin Harbor: frequently asked questions
Who runs Prvwsd-Twin Harbor?
Prvwsd-Twin Harbor (PWSID MS0450024) is a community water system owned by a state government. It is regulated by the MS state drinking water program.
How many people does Prvwsd-Twin Harbor serve?
Prvwsd-Twin Harbor reports serving 2,973 people through 1,126 service connections in Madison County, Mississippi.
Where does Prvwsd-Twin Harbor 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 Prvwsd-Twin Harbor 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 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 Prvwsd-Twin Harbor'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 October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the MS state drinking water program.
Where can I find Prvwsd-Twin Harbor's water quality report?
As a community water system, Prvwsd-Twin Harbor 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 Madison County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bear Creek W/A-West | Madison | 26,677 | Community | Groundwater |
| City of Ridgeland | Madison | 24,340 | Community | Groundwater |
| Bear Creek W/A -East | Madison | 18,770 | Community | Groundwater |
| City of Canton | Madison | 16,785 | Community | Groundwater |
| City of Madison | Madison | 16,136 | Community | Groundwater |
| Cmu - Lake Caroline | Madison | 8,511 | 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, “Prvwsd-Twin Harbor, PWSID MS0450024, Mississippi”, https://aquacensus.com/water-systems/mississippi/prvwsd-twin-harbor-ms0450024 (data as of October 1, 2026).