PurityRadar
Know if your water is safe to drink. PurityRadar turns EPA and USGS data into a personalized 0–100 score per address or well, with trends, advisories, and filter recommendations.
Overview
PurityRadar pulls EPA and USGS public records and converts them into a single 0–100 safety score for any US address or private well. You enter your address, and instead of wading through raw government databases, you get a readable score with the underlying data still traceable if you want to verify it yourself. You also get historical contaminant trends rather than a single point-in-time reading, which matters because water quality shifts seasonally and after infrastructure changes. If your score flags something, the tool surfaces relevant filter recommendations tied to the specific contaminants detected — not generic advice. Private well owners are the underserved case here. Most public water checkers only query municipal systems, leaving well users with nothing. PurityRadar models well risk using USGS geological and groundwater data, which is a meaningful gap to fill given that roughly 43 million Americans rely on private wells.
- Get a 0–100 safety score for any US address or private well without reading government PDFs.
- Trace every data point back to its EPA or USGS source record.
- Track contaminant levels over time instead of relying on a single snapshot.
- Assess private well risk using USGS groundwater and geological data.
- Receive filter recommendations matched to the specific contaminants flagged for your address.
- Stay current with active advisories tied to your location.
What stands out
- Covers private wells, which most competing tools ignore entirely.
- Data sourced from official EPA and USGS records — auditable, not proprietary black-box scoring.
- Historical trend view is more useful than one-off readings for spotting infrastructure decay.
- Free with no apparent paywall on core functionality.
Where it falls short
- US-only — no coverage for international addresses.
- Private well scores are modeled estimates from USGS data, not direct measurements from your actual well.
- Accuracy depends on how current and complete EPA and USGS records are for your area, which varies by municipality.
Who it's for
- Homeowners who suspect their tap water quality has changed and want data before calling a plumber or buying a filter.
- Home buyers who want water quality baked into their due diligence before closing.
- Renters who can't get straight answers from landlords about what's actually coming out of the tap.
- Private well owners who are excluded from standard municipal water reporting tools.
- Parents and households with immunocompromised members who need more than a boil-water advisory to feel confident.
Pricing
What we hold on record for PurityRadar.
- Pricing model
- Free Tool
Advertised prices often assume annual billing — The Annual-Billing Illusion , our study of 150 tools.
Our take
EPA data, minus the government website
— Toolhunter editors
Frequently asked questions
Is PurityRadar free?
Yes — PurityRadar is free to use.
How much does PurityRadar cost?
Nothing — it's completely free.
What is PurityRadar used for?
EPA data, minus the government website. It's listed under Healthcare in our directory.
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