What Is This Website?
PurityRadar is a public drinking-water information lookup tool for US residents. Users can search by address, city, ZIP code, or water system to view a water-quality reference score, contaminant records, and local water updates; private-well users instead see area-level risk context based on groundwater data. It brings regulatory records, annual water-quality reports, and advisories into one report, with a source and date for each figure. The score reflects public water-system data and cannot describe real-time water quality in a home's plumbing.
Core Features
- Generates a 0-100 water-quality reference score for a US address, city, ZIP code, or water system, adjusted by how closely contaminant readings approach or exceed EPA limits.
- Brings together EPA Safe Drinking Water Information System (SDWIS) violation records, water-system boundaries, and test information from utility Consumer Confidence Reports (CCRs).
- Shows historical changes in water records to put individual readings in a broader time context.
- Provides area-level risk context from USGS groundwater and aquifer data for private-well areas without a public water system.
- Surfaces state-level boil-water and do-not-drink advisories, along with local water news.
- Offers filter-matching information based on contaminant categories in a report while retaining sources, publication dates, and methodology details for review.
Common Use Cases
- Before moving or renting, residents use an address to review the local water system's public records, recent advisories, and score components.
- Households that received an annual CCR compare historical readings for specific contaminants with regulatory limits.
- Private-well households use local groundwater risk signals as a starting point before deciding whether to arrange testing.
- Residents who see a boil-water or do-not-drink notice check current local advisories and their update dates.
- Households considering a water filter first identify the contaminant types flagged in a report, then compare relevant filtration certifications and options.
Who Is It For?
- Households that want a single place to view US public water-system records and verify the underlying sources.
- People assessing local water information while moving, renting, or reading a CCR.
- Private-well users who want area-level risk as an initial reference and will pair it with actual testing.
- Community residents following local water advisories and historical changes.
- It is not a fit for people who need immediate, home-plumbing-level test conclusions; they should test their own water and consult their water provider.
How It Compares With Similar Tools
Compared with lookup services that provide only one water reading or a summary score, PurityRadar places the score alongside contaminant history, source dates, and local advisories in one report. When comparing tools, focus on whether original public records are available, whether the scoring method and data update dates are stated, and whether public water-system records are distinguished from area-level private-well risk. Public data can lag current conditions and cannot replace a test at a home's tap or a water provider's official report.
FAQ
Q: What does PurityRadar's 0-100 score mean?
A: The score is calculated from how closely contaminants in public water-system data approach EPA limits. It reflects public records, not a laboratory test result.
Q: Can PurityRadar check private-well water quality?
A: It can provide area-level risk context based on USGS groundwater data, but it cannot replace testing a private well's own water sample.
Q: Where does PurityRadar get its data?
A: The site says its sources include EPA SDWIS, utility Consumer Confidence Reports, USGS groundwater data, and state water advisories.
Q: How should I interpret a poor score?
A: Review the report's sources and dates and confirm details with the water provider. For health decisions, testing your own water sample is more appropriate.





















