SGM-SF_2017with 12/20 Revisions

74 ANSI/AARST SGM-SF 2017 (with 1220 revisions) Soil Gas Mitigation Standards for Existing Homes EXHIBIT C TEMPORARY SYSTEMS Temporary Radon Reduction System Date Installed: Description of system: Estimated date for completion of a permanent system: [ ] Within 30 days. [ ] Within 90 days due to ongoing diagnostics. [ ] Within 90 days after renovations. [ ] Subject to the approval process of _________________ John Smith Radon Reductions, 866-041-0412, Anywhere America, Cert# 109492 State Proficiency Board RADON RISK IF YOU HAVE NEVER SMOKED Radon Level If 1,000 people who never smoked were exposed to this level over a lifetime * 150 pCi/L About 270 people could get lung cancer Estimated for concentrations higher than provided in EPA’s Citizen Guide to Radon 100 pCi/L About 180 people could get lung cancer 50 pCi/L About 90 people could get lung cancer 20 pCi/L About 36 people could get lung cancer As shown in EPA’s Citizen Guide to Radon 10 pCi/L About 18 people could get lung cancer 8 pCi/L About 15 people could get lung cancer 4 pCi/L About 7 people could get lung cancer 2 pCi/L About 4 people could get lung cancer 1.3 pCi/L About 2 people could get lung cancer * Lifetime risk of lung cancer deaths from EPA’s Assessment of Risks from Radon in Homes (EPA 402-R-03-003) Figure C-2: SAMPLE RISK TABLE FOR RADON CONCENTRATIONS THAT ARE HIGHER THAN 20 PCI/L Figure C-1: SAMPLE LABEL WHEN INSTALLING TEMPORARY SYSTEMS