South Florida water data, by utility

Name: South Florida water data, by utility
Creator: ScoreYourWater.com
License: https://creativecommons.org/licenses/by/4.0/

This page publishes the public-record data behind our South Florida utility reports: PFOA and PFOS averages from EPA's UCMR 5 testing, lead 90th-percentile results and health-based violations, for 63 utilities in Miami-Dade, Broward and Palm Beach. Download the CSV and use it free, with credit.

Data updated October 25, 2026. Sources: EPA SDWIS (ECHO SDWA bulk download), EPA UCMR 5 occurrence data, Florida DEP. Public data, not a test of anyone's tap.

Look up your ZIP's public records

Download

CSV: south-florida-water.csv (63 rows, 12.9 KB). One row per utility (public water system).
Changelog: below. Each refresh keeps the prior file at /data/south-florida-water-[date].csv.
License: Creative Commons Attribution 4.0 (CC BY 4.0). Credit: "ScoreYourWater.com analysis of EPA and Florida DEP data, October 25, 2026."
The underlying EPA and Florida DEP records are public domain; this license covers our compilation. The data is provided as is; if you find an error, tell us (Report an error).

Summary

As of October 14, 2026, 46 of 63 utility reports here show PFOS or PFOA averaged above 4.0 ppt (EPA UCMR 5), including 1 whose results were measured by its water supplier.
0 utilities' latest 90th-percentile lead result since July 2021 was above EPA's current 15 ppb action level (it drops to 10 ppb from November 2027). A result above the action level is not a violation; it requires the utility to take further steps, such as treatment and public education.
7 utilities had at least one health-based violation since July 1, 2021; 0 have one that is still open.
Under EPA's 2024 PFAS rule, water systems must meet the PFOA and PFOS limits (4.0 ppt) by April 2029; in May 2026 EPA proposed allowing extensions to April 2031. UCMR 5 results before then are monitoring data. EPA judges compliance on a running annual average of samples, not on a single result. Last checked against the Federal Register: October 25, 2026.

Columns (data dictionary)

Columns (data dictionary)
Column	Meaning	Source
`pwsid`	EPA public water system ID	EPA SDWIS
`utility_name`	System name as EPA lists it	EPA SDWIS
`county`	County of the system's main service area	Florida DEP / EPA
`population_served`	Population served, as reported	EPA SDWIS
`buys_from`	Wholesale supplier PWSID(s), if any	EPA SDWIS
`pfoa_avg_ppt`, `pfos_avg_ppt`	Average of UCMR 5 samples for the system (average of all samples); blank if not tested	EPA UCMR 5
`0 in pfoa_avg_ppt and pfos_avg_ppt`	0 means every sample was below EPA's UCMR 5 minimum reporting level (4 ppt for PFOA and PFOS); it does not mean none is present. Averages count those samples as 0, as on our utility pages.	EPA UCMR 5
`pfoa_samples`, `pfos_samples`	Number of UCMR 5 samples behind the average	EPA UCMR 5
`pfoa_measured_by_supplier`, `pfos_measured_by_supplier`	TRUE if the result comes from the wholesale supplier's samples. The summary counts a utility as supplier-measured only when both results come from its supplier.	EPA UCMR 5 + SDWIS
`lead_p90_ppb`, `lead_p90_date`	Latest 90th-percentile lead result since July 2021, and its date	EPA SDWIS
`health_based_violations_since_2021_07`	Count of health-based violations since July 1, 2021	EPA SDWIS
`health_based_violations_open`	Of those, the number unresolved as of the extract date	EPA SDWIS
`report_url`	Our utility report page	ScoreYourWater.com
`ccr_url`	Utility's annual water quality report, if verified; else blank	Utility
`source_date_sdwis`, `source_date_ucmr`	Date of the extract used	EPA

How to read it

Does an average above 4.0 ppt mean a utility is violating the law?

No. Under EPA's 2024 PFAS rule, water systems must meet the PFOA and PFOS limits by April 2029; in May 2026 EPA proposed allowing extensions to April 2031. UCMR 5 results before then are monitoring data. EPA judges compliance on a running annual average of samples, not on a single result.

Is this a test of my tap water?

No. These are utility-level public records. Your tap can differ. For a test of your own water, see our list of certified labs.

Why do some utilities show their supplier's results?

Utilities that buy water from another system may report the supplier's samples. Those rows are marked pfoa_measured_by_supplier or pfos_measured_by_supplier = TRUE.

Can I use this data in a story or study?

Yes, under CC BY 4.0, with credit to "ScoreYourWater.com analysis of EPA and Florida DEP data" and the update date. For questions, write to hello@scoreyourwater.com.

Methodology

Systems included: the 63 community water systems with report pages on our site in Miami-Dade, Broward and Palm Beach.
PFAS: The level shown is the average of all of the utility's results in the years shown, with results below EPA's reporting level counted as zero. UCMR 5 Florida samples through June 9, 2026.
Lead: latest 90th-percentile result since July 2021 (the site's lead-window rule).
Violations: health-based violation records since July 1, 2021, from the EPA SDWIS July to September 2026 extract.
We don't edit, estimate or fill in values. Blank means the source has no value.

Changelog

October 25, 2026: first publication. south-florida-water-2026-10-25.csv

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