Public water system · FL6521417
ActiveOldsmar Water System
At a glance
Oldsmar Water System (PWSID FL6521417) is an active community water system in Pinellas County, Florida. It reports serving 14,898 people through 5,671 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in September 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
14,898
Service connections
5,671
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Oldsmar Water System compare with other water systems in Pinellas County?
By EPA's size categories, Oldsmar Water System is a large system (10,001 to 100,000 people). Pinellas County has 13 active public water systems. Its population served is well below the county average of 88,302 people per system, and accounts for 1.3% of the 1,147,926 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 Oldsmar Water System is about 122% above 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 Oldsmar Water System?
EPA lists Oldsmar Water System 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. 10 of the 13 active systems in Pinellas County (77%) are also owned by a local government.
Does Oldsmar Water System have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in September 2025. The violations listed here began between July 2003 and September 2025. By type: 2 monitoring and reporting, 1 monitoring and 1 public notice, recordkeeping or other. The contaminants or rules involved are Revised Total Coliform Rule, Public Notice, Stage 2 Disinfectants and Disinfection Byproducts Rule and Total coliform bacteria (TCR). EPA lists 2 as resolved and 2 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2015-12-08 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Unaddressed |
| 2006-10-02 | Monitoring and reportingMonitoring, Routine (IDSE) · code 30 | Stage 2 Disinfectants and Disinfection Byproducts Rulecode 0600 | No | Unaddressed |
| 2003-07-01 | Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
All 4 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.
Oldsmar Water System: frequently asked questions
Who runs Oldsmar Water System?
Oldsmar Water System (PWSID FL6521417) is a community water system owned by a local government. It is regulated by the FL state drinking water program.
How many people does Oldsmar Water System serve?
Oldsmar Water System reports serving 14,898 people through 5,671 service connections in Pinellas County, Florida.
Where does Oldsmar Water System 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 Oldsmar Water System have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in September 2025. 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 Oldsmar Water System'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 4 violations for this system; none is health-based, and the most recent began in September 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the FL state drinking water program.
Where can I find Oldsmar Water System's water quality report?
As a community water system, Oldsmar Water System 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 Pinellas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Pinellas County Utilities | Pinellas | 506,353 | Community | Purchased surface water |
| St Petersburg, City of | Pinellas | 349,979 | Community | Purchased surface water |
| Clearwater Water System | Pinellas | 115,000 | Community | Groundwater |
| Pinellas Park Water Dept | Pinellas | 48,939 | Community | Purchased surface water |
| Dunedin Water System | Pinellas | 46,161 | Community | Groundwater |
| Tarpon Springs Water System | Pinellas | 28,875 | 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, “Oldsmar Water System, PWSID FL6521417, Florida”, https://aquacensus.com/water-systems/florida/oldsmar-water-system-fl6521417 (data as of October 1, 2026).