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Radon Testing of Import Soil

Radon Testing of Import Soil

(OP)
The testing for Radon that I have done has been based on completed structures. I have been given a specification that calls for Radon testing of import fill, prior to delivery at the site (looking for <400 picoscuries per Liter).

I have been looking for a specification that discusses testing the soil, and found some information describing testing in a hole in the in place material, but I have two 5 gallon buckets. Are there any other specifications?

RE: Radon Testing of Import Soil

TDAA, please correct me if I am wrong, but isn't radon a gas coming from underground? How can it be tested in imported fill? I think that it should be a "in-situ" test...

Perhaps similar to your experiences, we use clean gravel and perforated piping under the floor slabs connected to fans to eliminate the radon gas.

RE: Radon Testing of Import Soil

Testing excavated aoil for radon is useless unless the soil is the source of the radon (example...some phosphate bearing soils). Aeration allows the gas to escape thus negating the issue.

RE: Radon Testing of Import Soil

(OP)
Well, you are hitting on my issues and my understanding of Radon.

I was just hit with this spec and wasn't sure if I was missing something.

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