30%tests ≥ 4 pCi/L
283tests on record
2.1median pCi/L
Zone 2EPA zone (1993 prediction)

Test results in Sagadahoc County

ResultShareEPA guidance
Below 2 pCi/L48%Below EPA's levels
2 to 4 pCi/L22%Consider fixing
4 pCi/L or more30%EPA recommends fixing

What the data shows

Where Sagadahoc County sits among Maine's 16 counties with dataEach dot is a county's share of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017
0%10%20%30%40%50%

How Sagadahoc County compares

Sagadahoc County has the lowest share of high results among its neighboursShare of tests at or above 4 pCi/L · Radon test results from laboratories, 2008–2017 · whisker: 95% range
Cumberland County44%Androscoggin County37%Lincoln County36%Kennebec County30%Sagadahoc County30%Maine 38%
Data table
AreaTests ≥ 4 pCi/LTests
Cumberland County44%4,076
Androscoggin County37%1,497
Lincoln County36%246
Kennebec County30%696
Sagadahoc County30%283
Maine (16 counties)38%11,825

Same source as Sagadahoc County.

What it means for your home

About 1 in 3 results in Sagadahoc County were at or above 4 pCi/L, where the EPA recommends a fix. Only a test shows your own home's level.

Levels in pCi/L from the EPA. The WHO reference level is 100 Bq/m³, about 2.7 pCi/L.

Test your home

Start with a short-term test (2–90 days) and confirm a result of 4 pCi/L or more with a second test. EPA guide

Sponsored: we earn a commission on purchases through these links. We haven't tested Airthings monitors yet.

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Fixing high radon

No local job records yet. National range: $800–$2,500, average $1,200 (EPA, 2003). Cost guide →

About this data

Source: Radon test results from laboratories (CDC Environmental Public Health Tracking Network). Period: 2008–2017. Tests: 283. Read the methodology →

These are voluntary and real-estate tests, not a random sample of homes, so they describe tested homes rather than every home.

About this page

Published by Ray Roman, editor of Radon by County. Figures are loaded from the cited source and spot-checked against it. Editorial policy · About us