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Now are radon tests conducted in real estate transactions? Radon TE`3t1n4 <br /> Because 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 dosed,except for normal entry and exit <br /> It • <br /> • Before Testing:Begin closed-house conditions at least <br /> 12 hours before the start of the radon test <br /> Continuous rus Sequential During Testing:Maintain closed-house conditions <br /> Aadoi Monitori . during the entire duration of the short term test. <br /> Operate home heating or cooling systems <br /> Fastest Second fastest Slowest <br /> normally during the test. <br /> Test is completed by ! Two short-term test One short term testis Where the test should he conducted <br /> Any radon test conducted for a real estate transaction <br /> a certified contractor i kits are used at the performed for a needs to be placed to 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 nr <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 /> sent to the lab kit is used in the same . <br /> analyzed to 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 /> 4 started right after the . four inches away from other objects <br /> a valid test The two test <br /> first test is . in a location where it won't be disturbed <br /> j results are averaged 3 taken down Test . not in enclosed areas <br /> to get the radon level. { is performed for a . not in areas of high heat or humidity <br /> minimum of 48 hours. <br /> Test kit is sent to If the house has multiple foundation types,it is <br /> recommended that each of these be tested For <br /> the lab for analysis recommended <br /> it 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 crawlspaee 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 It the test <br /> result is at or above the action level,the home should be mitigated. <br /> v, Radon Mitigation <br /> 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 /> ux C1a professional.A list of these radon mitigation professionals can be found at MDH's Radon web <br /> i site. <br /> Radon mitigation is the process or system used to reduce radon concentrations in the <br /> breathing zones of occupied buildings The goal of a radon mitigation system is to reduce <br /> "'"'s nFr.l.arr 7 1 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 pCi1L <br /> Active sub-slab suction(also called sub-slab depressurization,or SSDI 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 /> i installat on of these systems More information on radon mitigation can be found at the MDH <br /> Radon website. <br /> ;•SC3�Jnt <br /> After a radon reduction system is installed <br /> Perform an independent short-term test to ensure that the reduction sy'Stem is effective Make <br /> cit tia}'mr•ks <br /> sure the radon system is operating during 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 /> F, <br /> tabor <br /> Contact the MDH Radon Program if you are uncertain about anything MOH 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 <br /> • Information about radon health effects,radon testing and radon mitigation, (651)201-4601 <br /> • Names of trained,certified and MDH-listed radon professionals: 1(800)798-9050 <br /> Email:health.indoorair@state.mn us <br /> Web:www.health.state mn.us/radon <br /> Is aa&102013 Et 141-3722 <br />