Public water system · MS0230065
ActiveHancock County Water & Sewer
At a glance
Hancock County Water & Sewer (PWSID MS0230065) is an active community water system in Hancock County, Mississippi. It reports serving 3,254 people through 1,528 service connections. Its primary water source is purchased groundwater, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in November 2023.
This page covers its drinking water system only; sewer and wastewater service are not part of EPA's drinking water records.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
3,254
Service connections
1,528
Primary source
GWP
Purchased groundwater
System type
CWS
Community water system
System record
How does Hancock County Water & Sewer compare with other water systems in Hancock County?
By EPA's size categories, Hancock County Water & Sewer is a small system (501 to 3,300 people). Hancock County has 16 active public water systems. Its population served is roughly in line with the county average of 3,078 people per system, and accounts for 6.6% of the 49,251 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 Hancock County Water & Sewer is about half of 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 Hancock County Water & Sewer?
EPA lists Hancock County Water & Sewer 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. 6 of the 16 active systems in Hancock County (38%) are also owned by a local government.
Does Hancock County Water & Sewer have drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in November 2023. The violations listed here began between July 2016 and November 2023. By type: 9 contaminant level above the legal limit, 1 monitoring, 1 monitoring and reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (8 of them). EPA lists 9 as resolved, 2 as archived and 1 as unaddressed. 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. 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 |
|---|---|---|---|---|
| 2023-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2019-09-19 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2019-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2019-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2018-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2018-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Archived |
| 2018-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Archived |
| 2017-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2017-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2016-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2016-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | 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.
Hancock County Water & Sewer: frequently asked questions
Who runs Hancock County Water & Sewer?
Hancock County Water & Sewer (PWSID MS0230065) is a community water system owned by a local government. It is regulated by the MS state drinking water program.
How many people does Hancock County Water & Sewer serve?
Hancock County Water & Sewer reports serving 3,254 people through 1,528 service connections in Hancock County, Mississippi.
Where does Hancock County Water & Sewer 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 Hancock County Water & Sewer have any drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in November 2023. 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 Hancock County Water & Sewer'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, 9 are health-based, and the most recent began in November 2023. For current results, consult the system's annual water quality report, EPA ECHO, or the MS state drinking water program.
Where can I find Hancock County Water & Sewer's water quality report?
As a community water system, Hancock County Water & Sewer 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 Hancock County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Diamondhead Utilities-North | Hancock | 12,577 | Community | Groundwater |
| City of Bay St Louis | Hancock | 9,284 | Community | Groundwater |
| City of Waveland | Hancock | 6,400 | Community | Groundwater |
| Standard Dedeaux Water Association | Hancock | 5,386 | Community | Groundwater |
| Stennis Space Center | Hancock | 4,700 | Community | Groundwater |
| Silver Slipper Casino & Hotel | Hancock | 3,285 | Non-transient non-community | Groundwater |
Related pages
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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, “Hancock County Water & Sewer, PWSID MS0230065, Mississippi”, https://aquacensus.com/water-systems/mississippi/hancock-county-water-sewer-ms0230065 (data as of October 1, 2026).