Observed arrival · 2026-09-16
Tap and Well maps the Treasure Valley's water
A public-data tool compares Idaho tap-water results with federal limits across five counties, while estimating private-well conditions from nearby samples.
Field notes
Tap and Well organizes Idaho DEQ water records into city, county, system, and contaminant views, with reported measurements placed alongside federal limits. The homepage covers 179 of 188 systems with recent data and lists 14,838 lab results from the previous 36 months. Its private-well section uses 8,334 samples near 27 ZIP codes, clearly labeling those pages as estimates from nearby samples rather than tests of an individual property.
Observed signals
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Editorial observations of this landing page, not a rating.
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