Reading the EPA Sampling Record
Meaning of Detected, Median, and Range in Water Data
The EPA's Broken Arrow Municipal Authority record for Tulsa County shows measurements collected through routine testing of the public water system, not individual households. 'Detected' means the constituent was measurable somewhere in the system. The 'median' value is the middle concentration across sampling points, providing a typical level but not reflecting extremes. The 'range' shows minimum to maximum values found during sampling, indicating variability within the system.
Sampling Scope and Statistical Confidence
Number of Samples and Connections Represented
The public system serves 116,330 people through 41,154 connections. The data reflect aggregate results from this broad system, including many sampling points. While extensive, samples represent a snapshot and may not capture localized fluctuations in water quality. A small number of samples for any constituent can limit confidence in detecting rare or extreme events.
Household Fixtures and Processes Impacted First
Which Household Uses Respond to Water Quality Differences
Surface water-supplied city systems like this often influence water hardness, mineral content, and potential trace contaminants. Fixtures and appliances that use significant water volume, such as water heaters, dishwashers, and washing machines, are typically affected first by water quality variations. Water treatment equipment offering whole-home filtration and conditioning can help protect these fixtures and improve water performance.
Recorded Variations Over Time
Seasonal and Multi-Year Trends in the Public Water System Data
The record includes data up to the end of 2025 and shows two EPA health-based violations among five total issues over the system's history. Variations in detected constituents can relate to seasonal changes in surface water sources or treatment adjustments. These trends underscore the importance of ongoing monitoring to address periodic water quality fluctuations.
Source of Constituents in Tulsa’s City Water
How Surface Water Influences Distribution System Quality
The Broken Arrow Municipal Authority relies on surface water sources for public supply. Constituents detected arise primarily from natural watershed characteristics and potential treatment variables. Understanding the origin helps in selecting treatment approaches designed to manage or reduce target elements throughout household water use.
What Local Water Data Does Not Tell You
This public system data does not provide specific information about your individual household’s water quality or plumbing system. Only a direct water test from your tap can establish your home's water profile. Area-wide figures do not mean your water exhibits the same levels or treatment needs. As such, the data should guide but not dictate personal water treatment decisions.
For comprehensive protection tailored to Tulsa’s city water quality, the Fleck City Whole-Home Protection System ships ready to configure and offers a capacity of 32,000 grains. It addresses the general types of constituents confirmed in the municipal system record, supporting household water use throughout your home.
Where this information comes from
Source: EPA SDWIS public water system record. Sampled 2025-12-31. These figures describe the public water system's record, not the plumbing inside any individual building.
On record: EPA SDWIS record for BROKEN ARROW MUNICIPAL AUTHORITY (OK1021508), surface water supply, serving 116330 people: 2 health-based violations of 5 total; lead 90th percentile 0.002 mg/L
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