Table of Contents 1 82

RMS-MF 2018 with 12/20 Addenda

Introduction 2
Table of Contents 4
1.0 Scope 5
2.0 Applicability 6
2.1 Mandatory Conventions 6
2.2 Prior Systems 6
2.3 Adoption for Use 6
3.0 Qualified Contractors 6
3.1 Trained Professionals 6
3.2 Prior Systems 6
3.3 Adoption for Use 6
4.0 General Practices 7
4.1 Assemble Building Information 7
4.2 Proposals 8
4.3 Notification and Hazards 8
4.4 Jurisdictional Authorities 9
5.0 System Design 9
5.1 Health and Safety 9
5.2 Long-term Considerations 9
5.3 Appropriate Systems 9
5.4 Nondestructive Investigation 11
5.5 Diagnostic Investigation 12
5.6 Design Decisions (Flowcharts) 14
6.0 ASD Systems 16
6.1 ASD Suction Points 16
6.2 ASD Piping 19
6.3 ASD Pipe Sizing 23
6.4 ASD Exhaust Disharge 25
6.5 ASD Fan Installation 29
7.0 Sealing 31
7.1 Background and Accessibility 31
7.2 Sealant Materials 31
7.3 Accessible Slab Cracks 31
7.4 Other Openings to Soil 32
7.5 Sumps and Pits 32
7.6 Membranes Over Exposed Soil 33
7.7 Sub-membrane Depressurization (SMD) 34
7.8 Drains 34
7.9 Sealed Isolation Assemblies 35
8.0 For All Systems/Methods 36
8.1 Long-term OM&M Plan 36
8.2 System Monitors 36
8.3 Electrical 37
8.4 Labeling 38
8.5 Inspection for Compliance 41
8.6 Retention of Records 41
9.0 Post-mitigation 42
9.1 Functional Evaluation 42
9.2 Initial Radon Test After Mitigation 42
10.0 Documentation 44
10.1 Essential Information 44
10.2 When Owner Occupied 45
10.3 Non-ASD Systems 45
10.4 Inadvertent Collateral Mitigation 45
10.5 When Not Owner Occupied 46
11.0 Health and Safety 48
11.1 Mitigation Installers 48
11.2 Both Workers and Occupants 49
12.0 Non-ASD Systems/Methods 51
12.1 For All Non-ASD Methods 51
12.2 Sources for Air Delivered to a Building 52
12.3 Indoor Air Pressurization 53
12.4 Soil Air Pressurization 54
12.5 Indoor Air Dilution 55
12.6 Soil Air Dilution 55
12.7 Controls for Variable Activation 56
12.8 HVAC Repairs or Modifications 56
12.9 Building Materials 56
12.10 Water 56
12.11 Source Removal 56
12.12 Air Cleaning 57
12.13 Passive Methods and Systems 57
13.0 Descriptions of Terms 59
Exhibits 62
A-1: Contractor to Client 62
A-2: Management to Staff 63
A-3: Management to Occupants 64
B: Contractor to Occupants 65
C: Temporary Systems 66
Appendix A: References 67
Appendix B: Consensus Body Members 68
RMS-MF Companion Guidance 69
A: Guidance for Property Owners 70
B: Guidance when considering Non-ASD methods 71
C: Heating, Cooling and Ventilation Systems 72
D: Quality Management 74
E: Example Maintenance Logs 76
E-1: ASD 76
E-2: HVAC 77
E-3 Inspection Checlist 78
E-4: Diagnostic/Repair Checklist 79

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