Skip to content
RADON411

Radon mitigation in Ottawa, Illinois

Radon mitigation companies with an address in Ottawa, with the licenses on file for each.

Ottawa, IL at a glance

  • Businesses listed

    1

    Ottawa
    1
    Marseilles
    2

    By each business's listed address

  • Listed for mitigation

    1

    100% of listings

    Mitigation
    1
    Testing
    0

    A business can be listed for both

  • State license on file

    1

    100% of listings

    State license
    1
    NRPP
    0

    As each issuer's own record shows it

  • Share at 4+ pCi/L

    45.8%

    12.1 pts above IL

    LaSalle
    45.8%
    Illinois
    33.7%

    LaSalle, 31st of 70 in IL, 2017

  • EPA radon zone

    Zone 1

    Highest potential

    1. Zone 1
    2. 2
    3. 3

    1 highest, 3 lowest

    LaSalle County, where Ottawa is

Professionals in Ottawa

Illinois licensing and every city

1 professional in Ottawa, Illinois.

Radon levels in Ottawa

Read a result for Ottawa

Starts at LaSalle County's median, 3.6 pCi/L

3.6pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 3.6 pCi/L

Between 2 and 4 pCi/L

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 4 and aboveEPA says fix it

This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. LaSalle County's median reported result, 2017.

Interpret this readingWhat a fix costs

Ottawa lies in LaSalle County, where 45.8% of 1,002 radon tests reported to CDC (2017) were at or above 4 pCi/L, 12.1 points above Illinois pooled (33.7%), 31st of 70 Illinois counties with 30 or more tests.

Radon test figures for the county Ottawa lies in
CountyTestsAt or above 4 pCi/LMedianIllinois, pooledRank in the stateEPA zone
LaSalle County1,00245.8%3.6 pCi/L33.7%31 of 70Zone 1

Shares of tests people chose to run and report, by county (2017); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.

Around LaSalle County, where Ottawa lies, the nearest Illinois counties with a CDC figure for 2017 run from 32.3% to 58.6% of tests at or above 4 pCi/L; the closest, Putnam County, is 23 miles away at 53.3%.

The nearest Illinois counties to LaSalle County with 30 or more tests, 2017
CountyDistanceTestsAt or above 4 pCi/LMedian
Putnam County23 mi4553.3%4.5 pCi/L
Grundy County25 mi39032.3%2.4 pCi/L
Kendall County29 mi3,04535.0%2.8 pCi/L
Marshall County32 mi8148.1%3.8 pCi/L
Bureau County34 mi33358.6%5.1 pCi/L
Lee County35 mi21943.8%3.3 pCi/L

Cities near Ottawa

Every city in Illinois with listed radon professionals

Listings come from state licensing registries.

Run a radon business?Get Featured