Public water system · LA1103171
ActiveMagnolia-Lakeshore Estates
At a glance
Magnolia-Lakeshore Estates (PWSID LA1103171) is an active community water system in St. Tammany Parish County, Missouri. It reports serving 4,146 people through 1,382 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in April 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,146
Service connections
1,382
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Magnolia-Lakeshore Estates compare with other water systems in St. Tammany Parish County?
By EPA's size categories, Magnolia-Lakeshore Estates is a medium system (3,301 to 10,000 people). St. Tammany Parish County has 27 active public water systems, and Magnolia-Lakeshore Estates is the 5th-largest of them by population served. Its population served is about 144% above the county average of 1,698 people per system, and accounts for 9% of the 45,833 people reported by systems filed under the county. Across Missouri, the 2,943 active systems average 2,049 people each. Nationally, the average active community water system reports serving 6,703 people, so Magnolia-Lakeshore Estates is about 38% 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. Missouri has 1,612 active community water systems, 55% of the state's 2,943 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,521 Missouri systems (86%) list groundwater as their primary source.
Who owns and regulates Magnolia-Lakeshore Estates?
EPA lists Magnolia-Lakeshore Estates as privately owned. The LA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 27 of the 27 active systems in St. Tammany Parish County (100%) are also privately owned.
Does Magnolia-Lakeshore Estates have drinking water violations?
EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in April 2019. The violations listed here began between July 2001 and April 2019. By type: 5 public notice, recordkeeping or other, 3 monitoring and reporting and 2 required treatment not met. The contaminant or rule involved most often is Consumer Confidence Rule (4 of them). EPA lists 10 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 |
|---|---|---|---|---|
| 2019-04-26 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2019-02-06 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2019-02-06 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2013-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2013-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2006-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2005-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2003-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2001-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
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.
Magnolia-Lakeshore Estates: frequently asked questions
Who runs Magnolia-Lakeshore Estates?
Magnolia-Lakeshore Estates (PWSID LA1103171) is a community water system privately owned. It is regulated by the LA state drinking water program.
How many people does Magnolia-Lakeshore Estates serve?
Magnolia-Lakeshore Estates reports serving 4,146 people through 1,382 service connections in St. Tammany Parish County, Missouri.
Where does Magnolia-Lakeshore Estates 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 Magnolia-Lakeshore Estates have any drinking water violations?
EPA's records list 10 violations for this system; 2 are health-based, and the most recent began in April 2019. 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 Magnolia-Lakeshore Estates' 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; 2 are health-based, and the most recent began in April 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the LA state drinking water program.
Where can I find Magnolia-Lakeshore Estates' water quality report?
As a community water system, Magnolia-Lakeshore Estates 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 St. Tammany Parish County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Magnolia-Eden Isles | St. Tammany Parish | 10,155 | Community | Groundwater |
| Magnolia-Greenleaves | St. Tammany Parish | 8,031 | Community | Groundwater |
| Magnolia-Resolve Whisperwood | St. Tammany Parish | 6,867 | Community | Groundwater |
| Magnolia-the Meadows | St. Tammany Parish | 4,701 | Community | Groundwater |
| Magnolia-Guste Island | St. Tammany Parish | 2,847 | Community | Groundwater |
| Magnolia-Monterey Subdivision | St. Tammany Parish | 1,356 | 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, “Magnolia-Lakeshore Estates, PWSID LA1103171, Missouri”, https://aquacensus.com/water-systems/missouri/magnolia-lakeshore-estates-la1103171 (data as of October 1, 2026).