Public water system · MS0240214
ActiveMcgill Wellworks, Inc.
At a glance
Mcgill Wellworks, Inc. (PWSID MS0240214) is an active community water system in Harrison County, Mississippi. It reports serving 370 people through 140 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
370
Service connections
140
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Mcgill Wellworks, Inc. compare with other water systems in Harrison County?
By EPA's size categories, Mcgill Wellworks, Inc. is a very small system (500 people or fewer). Harrison County has 41 active public water systems. Its population served is well below the county average of 4,420 people per system, and accounts for 0.2% of the 181,220 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 Mcgill Wellworks, Inc. 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. 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 Mcgill Wellworks, Inc.?
EPA lists Mcgill Wellworks, Inc. as privately owned. 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. 12 of the 41 active systems in Harrison County (29%) are also privately owned.
Does Mcgill Wellworks, Inc. have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in October 2024. The violations listed here began between April 2012 and October 2024. By type: 8 monitoring and reporting, 2 required treatment not met, 1 reporting and 1 public notice, recordkeeping or other. The contaminant or rule involved most often is Combined Uranium (3 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 |
| 2013-09-01 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | 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 |
| 2012-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | 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 |
| 2012-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Uraniumcode 4006 | No | Resolved |
| 2012-04-01 | Monitoring and reportingMonitoring, Regular · code 03 | Radium-226code 4020 | 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.
Mcgill Wellworks, Inc.: frequently asked questions
Who runs Mcgill Wellworks, Inc.?
Mcgill Wellworks, Inc. (PWSID MS0240214) is a community water system privately owned. It is regulated by the MS state drinking water program.
How many people does Mcgill Wellworks, Inc. serve?
Mcgill Wellworks, Inc. reports serving 370 people through 140 service connections in Harrison County, Mississippi.
Where does Mcgill Wellworks, Inc. 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 Mcgill Wellworks, Inc. have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 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 Mcgill Wellworks, Inc.'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, 2 are 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 Mcgill Wellworks, Inc.'s water quality report?
As a community water system, Mcgill Wellworks, Inc. 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 Harrison County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Gulfport | Harrison | 75,056 | Community | Groundwater |
| City of Biloxi | Harrison | 23,310 | Community | Groundwater |
| City of Long Beach | Harrison | 18,514 | Community | Groundwater |
| Diberville W/S | Harrison | 12,721 | Community | Groundwater |
| City of Pass Christian | Harrison | 10,436 | Community | Groundwater |
| City of Biloxi-North | Harrison | 9,858 | 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, “Mcgill Wellworks, Inc., PWSID MS0240214, Mississippi”, https://aquacensus.com/water-systems/mississippi/mcgill-wellworks-inc-ms0240214 (data as of October 1, 2026).