Private Well Water Testing in Rhode Island

County-by-county USGS area-risk estimates for private wells across Rhode Island — arsenic exceedance probability and private-well population — plus how to test your own well at a Rhode Island-certified laboratory.

Rhode Island private-well risk summary

Counties covered

Rhode Island counties with modeled risk data.

People on private wells

area estimate

100,082

estimated across covered Rhode Island counties.

Average arsenic risk

area estimate

average modeled chance a well exceeds 10 µg/L arsenic across covered counties.

Rhode Island counties

Find a Rhode Island-certified testing lab

Get your well tested at a Rhode Island-certified laboratory. We list certification programs by state.

Rhode Island certified labs

Already tested your well? Get a free plain-English reading

Upload your well water lab report (PDF or a photo) and our team will email you a full, plain-English reading of every result — free. Educational only, never medical advice.

Your upload also helps us keep local water data accurate — we only ever share anonymized, area-level summaries.

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These figures are USGS area estimates: statistical groundwater models describing how likely elevated contaminant levels are across a county. They are not designed to predict the concentration in any single well. Only testing your own well reveals its water quality.

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By TapWaterData Editorial