WASHINGTON SUBURBAN SANITARY COMMISSION 2018 WSSC PLUMBING & FUEL GAS CODE Effective Date: July 1, 2018 CERTIFICATION OF AUTHORITY The General Counsel certifies that the statutory authority for the adoption of this Code is: Annotated Code of Maryland: Maryland Public Utilities Article: §§ 17-403, 17-404, 17-406, 23-101, 24-101, 24-102, 24-103, 24-104, 24-105, 24- 106, 24-201, 24-801, 25-101, 25-105, 29-101, 29-102, 29-103, 29-105, 29-107 Business Occupations and Professions Article: §§ 12-305, 12-307 Environment Article: §9-332 Explanation of Formatting: Additions and revisions between this version of the Code and the previous Code are indicated with a thick vertical line in the right margin (as shown to the right). Deletions are indicated with a horizontal arrow (as shown to the right). In addition to the margin indicators, additional or revised language features blue colored text to detail the referenced changes. 2018 WSSC PLUMBING & FUEL GAS CODE 1 TABLE OF CONTENTS TABLE OF CONTENTS CHAPTER 1 ADMINISTRATION ..................................................................................... 15 SECTION 101 GENERAL .................................................................................................... 15 101.1 Title ....................................................................................................................... 15 101.2 Purpose .................................................................................................................. 15 101.3 Adoption of Model Codes ..................................................................................... 15 101.3.1 International Codes ...................................................................................... 15 101.3.2 Referenced Codes and Standards ............................................................... 15 101.3.3 Appendices .................................................................................................... 16 101.4 Scope ..................................................................................................................... 16 101.5 Severability .......................................................................................................... 16 SECTION 102 APPLICABILITY ........................................................................................ 17 102.1 General ................................................................................................................. 17 102.1.1 Supersedes ..................................................................................................... 17 102.2 Existing Installations ........................................................................................... 17 102.3 Maintenance ........................................................................................................ 17 102.3.1 General .......................................................................................................... 17 102.3.2 Commission Maintenance ............................................................................ 17 102.3.3 Right-of-Way Services ................................................................................. 18 102.3.4 Commission-Ordered Repairs .................................................................... 18 102.3.5 Accessibility to Commission Structures ..................................................... 18 102.3.6 Sewer Stoppages ........................................................................................... 18 102.3.7 Enforcement Related to Off-Property Matters ......................................... 20 102.3.8 Water Leaks .................................................................................................. 20 102.3.9 Sewer Leaks and Defects ............................................................................. 20 102.3.10 Backflow Prevention Devices, Maintenance and Replacement ............. 20 102.3.11 Alternative Pipe Restoration Methods ..................................................... 21 102.4 Additions, Alterations or Repairs ...................................................................... 22 102.5 Change in Occupancy ......................................................................................... 22 102.6 Historic Buildings ................................................................................................ 22 102.7 Moved Buildings .................................................................................................. 22 102.8 Special Exception, Federal Property ................................................................. 22 102.9 Changes to This Code ......................................................................................... 23 102.10 Requirements Not Covered by Code ............................................................... 23 SECTION 103 COMMISSION FUNCTIONS ................................................................... 23 103.1 General ................................................................................................................. 23 103.2 Code Officials ...................................................................................................... 24 103.3 Inspection Staff .................................................................................................... 24 SECTION 104 DUTIES AND POWERS OF THE COMMISSION ............................... 24 104.1 General ................................................................................................................. 24 104.2 Rule-Making Authority ...................................................................................... 24 104.3 Applications and Permits ................................................................................... 24 104.4 Inspections ........................................................................................................... 24 104.5 Right of Entry ...................................................................................................... 24 2018 WSSC PLUMBING & FUEL GAS CODE 3 TABLE OF CONTENTS 104.6 Identification ........................................................................................................ 25 104.7 Notices and Orders .............................................................................................. 25 104.8 Commission Non-Interference ........................................................................... 25 104.9 Liability ................................................................................................................ 25 SECTION 105 APPROVAL ................................................................................................. 25 105.1 Product and Material Acceptance ..................................................................... 26 105.2 Alternative Materials, Methods and Equipment.............................................. 26 105.3 Required Testing ................................................................................................. 26 105.4 Alternative Engineered Design .......................................................................... 27 105.5 Modifications (Waivers). .................................................................................... 27 SECTION 106 PERMITS ..................................................................................................... 28 106.1 Required Permits ................................................................................................ 28 106.1.2 - Table 106.1.2 Permit Selection Table ....................................................... 28 106.2 Exempt Work ...................................................................................................... 29 106.2.1 Repairing Leaks ........................................................................................... 29 106.2.2 Ten-Percent Rule, General .......................................................................... 29 106.1.2 - Table 106.1.2 Permit Selection Table ....................................................... 30 106.2.3 Plumbing Maintenance ................................................................................ 34 106.2.4 Gas Appliance Maintenance ....................................................................... 34 106.2.5 Special Exception, Natural Gas Utility Companies .................................. 34 106.2.6 Federal Property Exempt ............................................................................ 34 106.3 Permit Application .............................................................................................. 35 106.4 Authorized Permit Applicant ............................................................................. 35 106.5 Construction Documents (Plans) Submission ................................................... 35 106.6 Permit Issuance ................................................................................................... 37 106.7 Fees ....................................................................................................................... 37 106.7.1 Insufficient Funds ........................................................................................ 38 106.7.2 Work Commencing Before Permit Issuance ............................................. 38 106.7.3 Fee Schedule ................................................................................................. 38 106.7.4 Fee Credits ...................................................................................................