Public water system · FL4134558
ActiveOur Lady of Mercy Chapel
At a glance
Our Lady of Mercy Chapel (PWSID FL4134558) is an active transient non-community water system in Miami-Dade County, Florida. It reports serving 100 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2018.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
100
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Our Lady of Mercy Chapel compare with other water systems in Miami-Dade County?
By EPA's size categories, Our Lady of Mercy Chapel is a very small system (500 people or fewer). Miami-Dade County has 172 active public water systems. Its population served is well below the county average of 19,337 people per system, and accounts for less than 0.1% of the 3,326,006 people reported by systems filed under the county. Across Florida, the 5,197 active systems average 4,345 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Our Lady of Mercy Chapel is about 31% below that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Florida has 2,777 active transient non-community water systems, 53% 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 Our Lady of Mercy Chapel?
EPA lists Our Lady of Mercy Chapel 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. 130 of the 172 active systems in Miami-Dade County (76%) are also privately owned.
Does Our Lady of Mercy Chapel have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2018. The violations listed here began between April 2017 and April 2018. By type: 5 monitoring and reporting, 5 monitoring and 2 reporting. The contaminant or rule involved most often is Revised Total Coliform Rule (7 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 |
|---|---|---|---|---|
| 2018-04-01 | ReportingReporting, Assessment Forms (RTCR) · code 4A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-12-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Resolved |
| 2017-12-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-11-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Resolved |
| 2017-11-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-09-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Resolved |
| 2017-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-07-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-07-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Resolved |
| 2017-06-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2017-06-01 | Monitoring and reportingFailure to Conduct Assessment Monitoring · code 19 | E. colicode 3014 | No | Resolved |
| 2017-04-01 | ReportingReporting, Assessment Forms (RTCR) · code 4A | Revised Total Coliform Rulecode 8000 | 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.
Our Lady of Mercy Chapel: frequently asked questions
Who runs Our Lady of Mercy Chapel?
Our Lady of Mercy Chapel (PWSID FL4134558) is a transient non-community water system privately owned. It is regulated by the FL state drinking water program.
How many people does Our Lady of Mercy Chapel serve?
Our Lady of Mercy Chapel reports serving 100 people through 1 service connection in Miami-Dade County, Florida.
Where does Our Lady of Mercy Chapel 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 Our Lady of Mercy Chapel have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2018. 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 Our Lady of Mercy Chapel'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, none is health-based, and the most recent began in April 2018. For current results, consult EPA ECHO, or the FL state drinking water program.
Where can I find Our Lady of Mercy Chapel's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Our Lady of Mercy Chapel is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Miami-Dade County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Mdwasa - Main System | Miami-Dade | 2,377,460 | Community | Groundwater |
| Hialeah, City of | Miami-Dade | 238,000 | Community | Groundwater |
| North Miami Beach | Miami-Dade | 180,000 | Community | Groundwater |
| Miami Beach, City of | Miami-Dade | 100,000 | Community | Purchased groundwater |
| North Miami, City of | Miami-Dade | 89,349 | Community | Groundwater |
| Fkaa J. Robert Dean W.T.P. | Miami-Dade | 86,000 | 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, “Our Lady of Mercy Chapel, PWSID FL4134558, Florida”, https://aquacensus.com/water-systems/florida/our-lady-of-mercy-chapel-fl4134558 (data as of October 1, 2026).