City water profile
Compare local ZIP estimates, evidence quality, associated public systems, and compliance history for St. Augustine, Florida.
Median indexed hardness
282PPM
2 indexed ZIPs
Range 280–283 PPM
City summary
St. Augustine has 2 published ZIP profiles across St. Johns County. The indexed median is 282 PPM, compared with 280 PPM across Florida.
Among the 290 Floridacities with an indexed median, St. Augustine ranks #122from highest to lowest. Across all 603 state ZIP profiles, available estimates run from 20to 374.5 PPM.
The 280–283 PPM range shows how much the available ZIP estimates vary within the city label.
Hardness distribution
2 of 2 ZIP profiles have a hardness estimate. Bars count ZIP profiles, not households or laboratory samples.
Evidence quality
Confidence labels
Observation window: Nov 20, 2019 to Jan 21, 2026.
ZIP directory
Open a ZIP for site-level provenance and measurements.
Public water systems
PWSID FL2554447
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL2554471
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL2550210
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL2554475
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL2550812
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL2551370
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL2554166
The system names this served city; Census place overlap links the city to this ZCTA.
PWSID FL2551459
The system names this served city; Census place overlap links the city to this ZCTA.
Compliance history
1 unique active health-based record appears among associated systems. This does not mean every contaminant was tested at every tap.
| Record | System | Period | Status |
|---|---|---|---|
| Revised Total Coliform Rule | FL2554447 | Nov 1, 2025 | Archived |
| Revised Total Coliform Rule | FL2554471 | Jul 1, 2025 | Archived |
| Revised Total Coliform Rule | FL2554447 | Feb 1, 2025 | Resolved |
| LEAD AND COPPER RULE REVISIONS | FL2551370 | Feb 1, 2025 | Unaddressed · health-based |
| LEAD AND COPPER RULE REVISIONS | FL2551370 | Feb 1, 2025 | Unaddressed |
| Revised Total Coliform Rule | FL2554447 | Dec 1, 2024 | Resolved |
| Revised Total Coliform Rule | FL2554447 | Sep 1, 2024 | Resolved |
| Revised Total Coliform Rule | FL2554475 | Sep 1, 2024 | Unaddressed |
| Consumer Confidence Rule | FL2554447 | Jul 1, 2024 | Resolved |
| Consumer Confidence Rule | FL2554471 | Jul 1, 2024 | Unaddressed |
Practical next steps
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Questions people ask
The indexed city median is 282 PPM. Open the ZIP report to verify the distance and confidence behind that estimate.
Compliance history is utility-wide and cannot guarantee conditions at every tap. Check current notices and test when address-specific evidence is needed.
Choose treatment only after confirming the problem at the property. A softener targets hardness; contaminant treatment requires a matching, verified performance claim.