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Now are radon tests conducted in real estate transactions? Radon Testing <br /> of the unique nature of real estate transactions,involving multiple parties <br /> and financial interests,there are special protocols for radon testing. House conditions when testing <br /> Be aware that any test lasting less than three months <br /> = requires closed-house conditions <br /> € Closed-house Conditions:Mean keeping all windows <br /> and doors closed,except for normal entry and exit <br /> M f Before Testing:Begin closed-house conditions at least <br /> �� ` ' I'`• f 12 hours before the start of the radon test <br /> + + Simultailleous During Testing:Maintain closed-house conditions <br /> i . during the entire duration of the short term test. <br /> Operate home heating or cooling systems <br /> Fastest Second lastest Slowest normally during the test. <br /> Test is completed by ! Two short-term test i One short-tetest is Where the test should be conducted <br /> rm <br /> Any radon test conducted for a real estate transaction <br /> a certified contractor i kits are used at the i performed for a needs to be placed in the lowest livable area of the <br /> with a calibrated same time,placed 6-12 minimum of 48 hours home suitable for occupancy.In Minnesota,this is <br /> CRM for a minimum inches apart,for amini- <br /> Test kit is sent to typically in the basement,whether it is finished or <br /> of 48 hours, mum of 48 hours lab for analysis unfinished. <br /> Test report is Test kits are Another short-term The test kit should be placed <br /> analyzed to sent to the lab kit is used in the same . two to six feet above the floor <br /> ensure that it is for analysis place as the first, . at least three feet from exterior walls <br /> started right after the . four inches awa from other objects <br /> a valid test The two test first test is y <br /> • in a location where it won't be disturbed <br /> results are averaged taken down.Test . not in enclosed areas <br /> I to get the radon level. is performed for a . not in areas of high heat or humidity <br /> minimum of 48 hours. <br /> 1 Test kit is sent to If the house has multiple foundation types,it is <br /> the lab for analysis recommended that each of these be tested For <br /> instance,if the house has one or more of the following <br /> The two test foundation types—basement,crawl space,slab-on- <br /> results are averaged to grade--a test should be performed in the basement <br /> get the radon level and in at least one room over the crawlspaoe and one <br /> room with a slab-on-grade area <br /> Who should conduct radon testing in real estate transactions? <br /> All radon tests should be conducted in accordance with national radon measurement protocols,by a certified and MDH-listed professional. <br /> This ensures the test was conducted properly,in the correct location,and under appropriate building conditions A list of these radon <br /> measurement professionals can be found at MDH's Radon web site.A seller may have previously conducted testing in a property.If the test <br /> result is at or above the action level,the home should be mitigated. <br /> \1, Radon Mitigation <br /> T".., •A Lowering radon in existing homes—Radon Mitigation <br /> • When elevated levels of radon are found,they should be mitigated.Elevated radon <br /> concentrations can be easily reduced by a nationally certified and MOH-listed radon mitigation <br /> professional A list of these radon mitigation professionals can be found at MDH's Radon web <br /> site. <br /> Radon mitieation is the process or system used to reduce radon concentrations in the <br /> Rnr „rtrcr' breathing zones of occupied buildings.The goal of a radon mitigation system is to reduce <br /> the indoor radon levels to below the EPA action level of 4.0 pCVL.A quality radon reduction <br /> (mitigation)system is often able to reduce the annual average radon level to below 2.0 pCi/L <br /> Active sub-slab suction(also called sub-slab depressurization,or SSD)is the most common <br /> = _ = and usually the most reliable type of system because it draws radon-filled air from beneath the <br /> house and vents it outside.There are standards of practice that need to be followed for the <br /> installation of these systems.More information on radon mitigation can be found at the MOH <br /> Radon website. <br /> �; -� fir`• • After a radon reduction system is installed <br /> : Ss7 ,lar <br /> Perform an independent short-term test to ensure that the reduction system is effective Make <br /> _ sure the radon system is operating dieing the entire test.Once a confirmatory radon test <br /> shows low levels of radon in the home,be sure to retest the house every two years to confirm <br /> continued radon reduction <br /> �a <br /> r3ctcr• <br /> Contact the MON Radon Program if you are uncertain about anything MON Radon Program <br /> regarding radon testing or mitigation. 625 Robert St N <br /> P.O.Box 64975 <br /> The MDH Radon Program can provide. St Paul,MN 55164-0975 5 *' <br /> • Information about radon health effects,radon testing and radon mitigation; (6511201-4601 <br /> • Names of trained,certified and MOH-listed radon professionals; 1(800)798-9050 <br /> Email:health.indoorair•Qstate,mn.us <br /> Web.www.health.state mn.us/radon <br /> ���/ 102013 C#141-3722 <br />