Public water system · FL3494318
ActiveLake Marian Shores
At a glance
Lake Marian Shores (PWSID FL3494318) is an active community water system in Osceola County, Florida. It reports serving 130 people through 82 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, 11 are health-based, and the most recent began in October 2020.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
130
Service connections
82
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Lake Marian Shores compare with other water systems in Osceola County?
By EPA's size categories, Lake Marian Shores is a very small system (500 people or fewer). Osceola County has 64 active public water systems. Its population served is well below the county average of 5,134 people per system, and accounts for less than 0.1% of the 328,565 people reported by systems filed under the county. Across Florida, the 5,197 active systems average 4,345 people each. Nationally, the average active community water system reports serving 6,703 people, so Lake Marian Shores 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. Florida has 1,640 active community water systems, 32% of the state's 5,197 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 4,996 Florida systems (96%) list groundwater as their primary source.
Who owns and regulates Lake Marian Shores?
EPA lists Lake Marian Shores as privately owned. The FL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 55 of the 64 active systems in Osceola County (86%) are also privately owned.
Does Lake Marian Shores have drinking water violations?
Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in October 2020. The violations listed here began between October 2006 and October 2020. By type: 11 contaminant level above the legal limit and 1 monitoring and reporting. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (9 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 |
|---|---|---|---|---|
| 2020-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2019-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 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 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2008-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2008-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Haloacetic acids (HAA5)code 2456 | Yes | Resolved |
| 2008-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2007-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2007-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2007-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2007-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Total trihalomethanes (TTHM)code 2950 | Yes | Resolved |
| 2006-10-01 | 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.
Lake Marian Shores: frequently asked questions
Who runs Lake Marian Shores?
Lake Marian Shores (PWSID FL3494318) is a community water system privately owned. It is regulated by the FL state drinking water program.
How many people does Lake Marian Shores serve?
Lake Marian Shores reports serving 130 people through 82 service connections in Osceola County, Florida.
Where does Lake Marian Shores 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 Lake Marian Shores have any drinking water violations?
Of the 12 most recent violations in EPA's records, 11 are health-based, and the most recent began in October 2020. 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 Lake Marian Shores' 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, 11 are health-based, and the most recent began in October 2020. For current results, consult the system's annual water quality report, EPA ECHO, or the FL state drinking water program.
Where can I find Lake Marian Shores' water quality report?
As a community water system, Lake Marian Shores 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 Osceola County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Toho Water Authority Eastern | Osceola | 110,102 | Community | Groundwater |
| St. Cloud, City of (3 Wps) | Osceola | 82,752 | Community | Groundwater |
| Toho Water Authority-Poinciana System | Osceola | 69,447 | Community | Groundwater |
| Toho Water Authority Western | Osceola | 40,330 | Community | Groundwater |
| Enterprise Cdd (Consecutive) | Osceola | 11,178 | Community | Purchased groundwater |
| Harmony Cdd | Osceola | 6,221 | 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, “Lake Marian Shores, PWSID FL3494318, Florida”, https://aquacensus.com/water-systems/florida/lake-marian-shores-fl3494318 (data as of October 1, 2026).