Radon Testing & Mitigation - Environmental Works

Radon Testing and Mitigation

U.S. Surgeon General Health Advisory

Radon Testing & Mitigation

“Indoor radon is the second-leading cause of lung cancer in the United States and breathing it over prolonged periods can present a significant health risk to families all over the country. It’s important to know that this threat is completely preventable. Radon can be detected with a simple test and fixed through well-established venting techniques.”   January 2005

Our Mission

Environmental Works cares about your indoor air quality and long term health, which is why we offer complete radon testing and radon mitigation services. As a National Environmental Health Association – National Radon Proficiency Program (NEHA-NRPP) certified radon measurement and mitigation contractor, and with our extensive experience in commercial and residential construction and environmental services, Environmental Works will complete your project from testing, to system design and installation at a competitive price.

Radon Testing System

Radon Testing Services

Offering radon testing services for residential, multi-family, commercial, and public buildings at competitive prices, Environmental Works provides NEHA-certified short-term radon testing (48 hour minimum) using state of the art Sun Nuclear active continuous radon monitors (CRM). This allows us to get you results immediately upon completing the test, saving valuable time. Unlike passive charcoal tests, a single active continuous test is sufficient to make a recommendation for installing a radon reduction system. Our CRM radon testing service comes complete with a diagram of the results, showing hourly radon measurements during the test period.

Note: the short-term radon test must be completed under "Closed House Conditions" so we ask that our clients observe the following conditions prior to and during the radon test:

  • » Keep all windows and doors closed (except regular entry and exit) 12 hours prior to and for the duration of this test.
  • » Maintain normal occupancy temperature and operation of HVAC system 24 hours prior to and for the duration of this test. This may include heat recovery ventilation (HRV) systems at normal operation.
  • » Do not turn on any other fans inside home including whole house fans, window fans, etc…
  • » Do not turn off an existing radon mitigation system.
  • » Do not touch radon monitor. Monitor detects movement, which may negate test results.

We also offer passive short-term charcoal testing, as well as long-term (91 days to 1 year) Alpha Track radon testing upon request. Additional water sampling tests may also be provided for homes served by well water, though radon in well water is less common in the Pacific Northwest. All of our radon test results include a written report and recommendations for radon mitigation when needed.

Residential Radon Mitigation System

Radon Mitigation Services for Existing Homes & Buildings

Environmental Works provides a free radon mitigation system consultation and quote if elevated radon levels have been found. All of our active radon systems are guaranteed for 10 years to remain below the World Health Organization (WHO) action level of 2.7 pCi/L, and we always design our systems to be as aesthetically pleasing and quiet as possible. Using advanced sub-slab pressure testing equipment, we are able to design and install an effective radon reduction system while using the quietest and most energy efficient radon fan possible. Our radon fans are MADE IN THE USA of high quality materials, and are designed specifically for radon reduction and exterior "wet" applications. These continuous radon fans carry a 5 year manufacturer warranty, but often last 7 to 10 years with no maintenance. Many of our radon systems can be hidden within the interior of the home and exit the roof like a standard plumbing vent. Exterior systems are installed in an ideal location, and may be painted to match existing exterior color. Our systems receive a short-term post mitigation test to insure that they are performing correctly.

Our radon reduction systems are typically "active" systems using a continuous radon fan and vent piping to create a negative pressure under a concrete slab (sub-slab depressurization), under a soil-gas membrane (vapor barrier) in a crawl space (sub-membrane depressurization), or a combination of these systems. Some radon mitigation systems may also be incorporated into a new or existing sump when subsurface groundwater is also an issue. "Passive" radon systems may be sufficient in new construction projects, with the option to make them active if radon levels test above the EPA action level of 4.0 pCi/L. Every radon reduction system is designed specifically for your home or building using high quality materials and workmanship.

Radon Mitigation System for New Construction

Radon Mitigation Services for
New Construction

As of April 2011 the State of Oregon adopted Senate Bill 1025 establishing minimum requirements for Radon Resistant New Construction. The State of Washington had adopted similar radon system requirements years ago. New residential and multi family structures must now have a minimum passive radon reduction system according EPA Radon Mitigation Standards. These design standards are also identified in Appendix F of the Oregon Residential Specialty Code. These standards were adopted and implemented due to the risks associated with radon gas exposure in buildings and the simplicity and effectiveness of these systems when designed into the rough structure of the building. These new construction systems often outperform retrofit systems for a lower installed cost.

Environmental Works has partnered with residential and commercial building and remodeling companies to provide fast, high quality, and affordable new construction radon mitigation systems backed by a fully transferrable 10 year guarantee (for active systems). Our expertly designed passive radon systems are fully code compliant and often solve the radon issue completely, without any further mitigation procedures being necessary. The passive system can easily be made active if post-build testing is above 4.0 pCi/L by simply adding a continuous radon fan. Don’t trust just anyone to install your radon mitigation system. You can rely on Environmental Works to provide you and your customers with the highest quality radon system, fast and professional service, and long term piece of mind!

Facts About Radon

  • » Radon is an odorless, tasteless and invisible gas produced by the decay of naturally occurring uranium in soil and water
  • » Radon is a form of ionizing radiation and a proven carcinogen.
  • » How radon enters the home:
    • o Stack Effect: the building acts like a vacuum
    • o Cracks in floors and walls
    • o Construction joints
    • o Gaps around pipes
    • o Cavities inside walls
    • o The water supply or well water

Radon Entry Points to a Home

  • » It’s estimated that at least 1 in 7 properties in the Portland/Vancouver Metro Area have elevated radon levels
  • » As many as 50% of the homes in "hot spots" including Alameda Ridge in Portland and Mill Plain in Clark County, Washington have radon levels above 4.0 pCi/L
  • » Radon is the second leading cause of lung cancer in the U.S. (it’s the leading cause in non-smokers)
  • » Radon kills over 20,000 Americans every year, which is more than drunk drivers and home fires combined
  • » The Surgeon General and the EPA recommend that all properties be tested for radon
  • » You want radon tests on homes to be recent, within the past 2 years
  • » If people have renovated or altered their home since they last tested they should re-test
  • » Winter is the best time to test for radon because the home is all sealed up
  • » When buying a home a buyer or buyer’s agent should ask about a radon test
  • » Having a radon test already done with favorable results can speed up the sale process

Radon Resource Links