A Division of Granite State Analytical Services, LLC.


Sampling & Placement Certification

Every individual who has been trained to perform radon services on-site (at the client ' s building) must take and pass the appropriate exam offered by one of the recognized national radon certification bodies. Maine currently recognizes both the National Environmental Health Association ' s National Radon Proficiency Program, and their Radon Measurement (aka testing) and Radon Mitigation exams; and the National Radon Safety Board and their Radon Measurement Specialist and Radon Mitigation Specialist exams.

Analysis Certification

As a Radon Analysis Laboratory we must prove that we are proficient in analyzing the radon test devices we offer. Proof of proficiency is by certification as a radon analysis laboratory by a recognized radon certification program such as the National Environmental Health Association (NEHA-NRPP), or the National Radon Safety Board (NRSB); or passing a radon air proficiency testing through the Bowser-Morner Radon Calibration Laboratory. We are also required to submit a current quality assurance plan and standard operating procedures that is consistent with the National Radon Proficiency Program Guidance on Quality Assurance (EPA 402-R-95-012, October 1997) Chapter 9.

  • Maine Testing Laboratory # SPC20
  • Air Radon

    Radon is a naturally occurring radioactive gas produced by the breakdown of uranium in soil, rock, and water. Air pressure inside your home is usually lower than pressure in the soil around your home ' s foundation. Because of this difference in pressure, your home acts like a vacuum, drawing radon in through foundation cracks and other openings. In a small number of homes, the building materials, such as granite and certain concrete products, can give off radon, although building materials rarely cause radon problems by themselves.

    Water Radon

    The radon in your water supply poses an inhalation risk and an ingestion risk. Research has shown that your risk of lung cancer from breathing radon in air is much larger than your risk of stomach cancer from swallowing water with radon in it. Most of your risk from radon in water comes from radon released into the air when water is used for showering and other household purposes. Radon in your home ' s water is not usually a problem when its source is surface water, e.g. lake water. A radon in water problem is more likely when its source is ground water, e.g. a private well.

    Sampling &

    Maine law requires that radon testing performed as part of a real estate transaction or for LD 943 (Rental Housing) be conducted by a person registered to conduct radon testing with the State of Maine Department of Health and Human Services (per Title 22, chapter 165).
    Personnel at our laboratory are registered with the State of Maine to do such testing. (Air and Water Testing ME ID #ME02000C) Help make sure that radon test results are accurate. Hiring a Maine registered radon tester assures that an impartial expert does the job.

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