Public water system · FL1460455
ActiveMary Esther, City of
At a glance
City of Mary Esther (PWSID FL1460455) is an active community water system in Okaloosa County, Florida. It reports serving 4,013 people through 1,867 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 2013.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
4,013
Service connections
1,867
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does City of Mary Esther compare with other water systems in Okaloosa County?
By EPA's size categories, City of Mary Esther is a medium system (3,301 to 10,000 people). Okaloosa County has 36 active public water systems. Its population served is about half of the county average of 7,886 people per system, and accounts for 1.4% of the 283,881 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 City of Mary Esther is about 40% 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 City of Mary Esther?
EPA lists City of Mary Esther as owned by a local government. 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. 11 of the 36 active systems in Okaloosa County (31%) are also owned by a local government.
Does City of Mary Esther have drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 2013. The violations listed here began between April 1996 and July 2013. By type: 4 monitoring and reporting and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Total coliform bacteria (TCR) (4 of them). EPA lists 4 as archived and 1 as resolved. 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. 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 |
|---|---|---|---|---|
| 2013-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2001-07-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 2001-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Nitratecode 1040 | No | Archived |
| 1996-08-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Archived |
| 1996-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Archived |
All 5 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.
City of Mary Esther: frequently asked questions
Who runs City of Mary Esther?
City of Mary Esther (PWSID FL1460455) is a community water system owned by a local government. It is regulated by the FL state drinking water program.
How many people does City of Mary Esther serve?
City of Mary Esther reports serving 4,013 people through 1,867 service connections in Okaloosa County, Florida.
Where does City of Mary Esther 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 City of Mary Esther have any drinking water violations?
EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 2013. 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 City of Mary Esther'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. EPA's records list 5 violations for this system; 1 is health-based, and the most recent began in July 2013. For current results, consult the system's annual water quality report, EPA ECHO, or the FL state drinking water program.
Where can I find City of Mary Esther's water quality report?
As a community water system, City of Mary Esther 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 Okaloosa County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Okaloosa Co.Wtr.; Swr.System | Okaloosa | 80,295 | Community | Groundwater |
| Crestview, City of Water Dept. | Okaloosa | 34,789 | Community | Groundwater |
| Destin Water Users, Inc.. | Okaloosa | 31,752 | Community | Groundwater |
| Fort Walton Beach, City of | Okaloosa | 24,113 | Community | Groundwater |
| Auburn Water System | Okaloosa | 22,903 | Community | Groundwater |
| Niceville, City of | Okaloosa | 22,243 | 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, “Mary Esther, City of, PWSID FL1460455, Florida”, https://aquacensus.com/water-systems/florida/mary-esther-city-of-fl1460455 (data as of October 1, 2026).