SGM-SF_2017with 12/20 Revisions

3 ANSI/AARST SGM-SF 2017 (with 1220 revisions) Soil Gas Mitigation Standards for Existing Homes a) as established in certification requirements of the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB); and b) as required by statute, state licensure or certification program, where applicable. Note—For chemical vapor intrusion, see additional requirements in Section 13.1 for Qualified Soil Gas Mitigation Professionals . 3.3 Quality Management 3.3.1 The contractor , contracting team or management team shall have or establish a Quality Management System that is applied to each project and includes a Quality Assurance Manual and Quality Control procedures documented for each job site. 3.3.2 Oversight required A qualified radon or soil gas mitigation professional shall be physically present and immediately available to direct, instruct and oversee activities of other individuals, mitigation installers and other professionals engaged in installation activities for the mitigation system(s). 3.3.3 Qualified control tracking At a minimum, it is required that quality control efforts retain evidence on pertinent details to include: a) identification of staff responsible for standards compliance for each specific installation; b) floor plan sketches of system components stipulated in Section 5.4.1 as rendered during building evaluations and/or as finalized for client distribution; and c) descriptions of conditions found under slabs and resulting suction pit description after actions were taken to comply with requirements for suction pit size as stipulated in Section 6.1.1 . 3.3.4 Other qualified professionals Informative advisory —Other persons working with the contractor or management team (e.g. design, utilities, engineering and facilities staff) should be qualified for their discipline. Such persons should maintain applicable licenses or certifications and acquire permits as required by the jurisdiction where the mitigation work is performed. 4.0 GENERAL PRACTICES 4.1 Assemble Building Information 4.1.1 Existing radon measurements Any available test results shall be reviewed in developing an appropriate mitigation strategy. Note 1— Contractor review of all measurements is important when developing an appropriate mitigation strategy. Note 2—For measurements of hazardous vapors and gases other than radon, see Section 13 . 4.1.1.1 Interpretations If the most recent radon tests were not performed in accordance with the EPA, state or ANSI/AARST measurement protocols, the client shall be informed, and a retest shall be recommended. Both written and verbal interpretations and recommendations made by or handed out by the contractor regarding health risks associated with radon shall be provided in accordance with the latest version of the appropriate EPA documents, or documents developed by the state in which the work is being done. Relevant EPA documents for radon include “A Citizens Guide to Radon” and the “Homebuyers and Sellers Guide to Radon.” 4.1.2 Building specifications Note—The contractor should request that the client provide any available information on the building (e.g., construction specifications) that might be of value in determining the mitigation strategy.