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eLibrary > Washington Suburban Sanitary Commission 2011 WSSC Plumbing & Fuel Gas Code Effective Date: February 1, 2011 >

Washington Suburban Sanitary Commission 2011 WSSC Plumbing & Fuel Gas Code Effective Date: February 1, 2011, 0

2011 WSSC PLUMBING & FUEL GAS CODE [Go to Page]
Effective Date: February 1, 2011
CERTIFICATION OF AUTHORITY
TABLE OF CONTENTS
CHAPTER 1
ADMINISTRATION [Go to Page]
SECTION 101
GENERAL [Go to Page]
101.1 Title. These regulations may be cited as the "WSSC Plumbing and Fuel Gas Code," hereinafter referred to as "this Code."
101.2 Purpose. The purpose of this Code is to provide minimum requirements and standards regarding plumbing and fuel gas systems for the protection of the public health, safety and welfare. The purpose of this Code is not to create or otherwise esta...
101.3 Adoption of Model Codes
SECTION 102
APPLICABILITY
SECTION 103
COMMISSION FUNCTIONS
SECTION 104
DUTIES AND POWERS OF THE COMMISSION
APPROVAL
SECTION 106
PERMITS
SECTION 107
INSPECTIONS AND TESTING
VIOLATIONS AND PENALTIES
SECTION 109
APPEAL OF CODE OFFICIAL DECISIONS
SECTION 110
THEFT OF COMMISSION SERVICES
SECTION 111
CONNECTION TO THE COMMISSION'S
SYSTEMS AND METERING
SECTION 112
PLUMBING AND FUEL GAS BOARD
SECTION 113
LICENSES AND REGISTRATION
SECTION 114
TRADE QUALIFICATIONS AND EXAM
SECTION 115
RECIPROCITY OF LICENSES
DEFINITIONS [Go to Page]
SECTION 201
GENERAL
SECTION 202
ADDITIONAL DEFINITIONS
CHAPTER 3
ADOPTION OF
INTERNATIONAL PLUMBING CODE [Go to Page]
SECTION 301
GENERAL
SECTION 302
AMENDMENTS TO THE
INTERNATIONAL PLUMBING CODE [Go to Page]
1003.8.1 General [Go to Page]
1003.8.2 Size
1003.8.3 Parking Garages
1003.8.4 Vehicle Washing Facilities
1003.8.5 Vehicle Service Facilities
CHAPTER 4
ADOPTION OF
INTERNATIONAL FUEL GAS CODE [Go to Page]
SECTION 401
GENERAL
SECTION 402
AMENDMENTS TO THE
CHAPTER 5
CROSS CONNECTION CONTROL [Go to Page]
SECTION 501
GENERAL
SECTION 502
APPLICABILITY
SECTION 503
CUSTOMER’S RESPONSIBILITIES [Go to Page]
503.1 Backflow Notification. The customer shall immediately notify WSSC if there is reason to believe that backflow has or may have occurred. This shall include private water system, plumbing fixture, equipment utilizing water, or any building system ...
503.2 Testing and Maintenance of Backflow Preventers. The customer, at their own expense, shall purchase, install, operate, test and maintain approved backflow-preventers as directed by WSSC. The customer shall immediately correct any malfunction of a...
503.3 Licensed Cross-Connection Technician. The customer shall be responsible for hiring a cross-connection technician (who is employed by a registered and insured Master Plumber), to perform the installation, testing and maintenance on his/her backfl...
503.4 Elimination of Cross-Connections. The customer shall be responsible for the elimination of, or protection against, cross-connections on their premises.
503.5 Record Keeping. The customer shall be responsible for maintaining all necessary records on backflow-prevention assemblies and/or devices installed on their premises.
503.6 Change of Use. The customer shall immediately contact WSSC when the use of his/her property changes. WSSC shall then reassess the hazard classification of the property and determine if an inspection is warranted.
503.7 Backflow Preventers Out of Service. The customer shall notify WSSC in writing of any backflow preventers that have been taken out of service.
SECTION 504
SECTION 505
SELECTION OF BACKFLOW PREVENTERS [Go to Page]
506.1 Plumbing Fixtures. The supply lines and fittings for every plumbing fixture shall be installed so as to prevent backflow. Plumbing fixture fittings shall provide backflow protection in accordance with ASME A112.18.1.
506.2 Devices, appurtenances, appliances and apparatus. All devices, appurtenances, appliances and apparatus intended to provide some special function, such as sterilization, distillation, processing, cooling, or storage of ice or food, and that conne... [Go to Page]
506.6.2 Private Water Supplies and Secondary Sources of Water. For private water supplies and secondary sources of water, an air-gap separation or a reduced-pressure principle backflow-prevention assembly shall be installed at the interconnection beca...
506.6.3 Used Waters and Industrial Fluids. For used waters and industrial fluids, an air-gap separation or a reduced-pressure principle backflow-prevention assembly shall be installed where there is a high hazard.
506.7 Fire Hydrant Meters and Backflow Preventers for Temporary or Seasonal Use. [Go to Page]
506.7.1 General. WSSC may authorize use of a fire hydrant water meter to applicants requiring water for temporary use as follows: [Go to Page]
506.7.2 Small Hydrant Meter. A WSSC small hydrant meter (3/4inches) shall include an integral hose-connected vacuum breaker (ASSE 1011).
506.7.3 Large Hydrant Meter. For a WSSC large hydrant meter (3 inches), the applicant shall provide a reduced pressure principle backflow assembly (ASSE 1013) suitable for high-hazard applications. The assembly must carry a satisfactory test tag curre...
506.7.4 Fire Hydrant’s Use Restrictions. Fire hydrant use shall be restricted to temporary or seasonal applications such as, but not limited to: Tank-truck filling, temporary water for construction sites, special events (e.g., charity walks, fairgroun...
506.8 Parallel Systems. In commercial applications and in R-3 occupancies where a 13R fire sprinkler system is specified, multiple water systems may be established in parallel as follows:
506.8.1 Fire Sprinkler Systems – shall be the first supply branch; this branch may be ahead of an inside domestic meter providing a detector meter type BFP is used; see 502.5.2 and 502.5.4 below.
506.8.2 Irrigation – branch shall be downstream of an inside meter; ahead of pressure reducing station, if applicable; backflow commiserate with hazard.
506.8.3 Domestic – branch shall be downstream of an inside meter; containment backflow commiserate with hazard.
506.9 Automatic Residential Fire Sprinkler Systems. On residential buildings equipped with an NFPA 13D residential fire sprinkler system, the tee feeding the residential fire sprinkler system shall be located on the outlet side of the meter. Potable w...
506.10 Automatic Commercial Fire Sprinkler Systems. Where potable water is used to serve or supplement a fire sprinkler system, backflow prevention shall be as follows;
SECTION 507 [Go to Page]
507.1 Installation Dimensions. Installation dimensions shall conform to Table 5.1. Double check detector assemblies (ASSE 1048) and reduced-pressure detector assemblies (ASSE 1047) shall be installed in accordance with WSSC’s Standard Details for Con...
507.2 Accessibility. [Go to Page]
507.2.1 General. Backflow preventers shall have access for maintenance, replacement and testing. Backflow preventers shall not be installed where platforms, ladders or lifts are required for access. Backflow preventers shall be installed inside buildi...
507.5.3 Full-Flow Characteristic Valves. Full-flow characteristic valves; either ball type or resilient seated gate type shall be installed on all assemblies.
507.6 Other Installation Requirements.
507.6.1. Bypass Arrangements. Bypass arrangements shall be permitted around backflow preventers provided equivalent protection is installed on the bypass line.
507.6.4 Prohibited Locations. Backflow preventers designed to vent to atmosphere and potable system drainage valves (such as stop and waste or boiler drain type), shall not be installed in pits, vaults or similar submerged areas and shall not be insta...
507.6.5 Common Service. For new construction wherein a common service splits into separate fire and domestic lines inside the property, backflow-prevention assemblies or devices shall be located after the split with no assembly or device required on t...
507.6.6 Pumps and other appliances. Water pumps, filters, softeners, tanks and all other devices that handle or treat potable water shall be protected against contamination.
507.6.7 Booster Pumps. Booster pumps for fire protection systems, domestic water, or local system/equipment enhancement shall be installed on the downstream side of the respective backflow preventers.
507.6.8 Reutilization prohibited. Water utilized for the cooling of equipment or other processes shall not be returned to the potable water system. Such water shall be discharged into a drainage system through an air gap or shall be utilized for non-p...
507.6.9 Reuse of piping. Piping that has been utilized for any purpose other than conveying potable water shall not be utilized for conveying potable water.
507.6.10 Painting of water tanks. The interior surface of a potable water tank shall not be lined, painted, or repaired with any material that changes the taste, odor, color or potability of the water supply when the tank is placed in, or returned to,...
WSSC WATER METERS [Go to Page]
SECTION 601
GENERAL
SECTION 602
WATER METER SELECTION
Table 602.1
SECTION 603
OUTSIDE WATER METERS
INSIDE WATER METERS
CHAPTER 7
SITE-UTILITY SYSTEMS [Go to Page]
SECTION 701
GENERAL
SECTION 702
DESIGN [Go to Page]
SECTION 703
PERMITS
SECTION 704
SECTION 705
SECTION 706 [Go to Page]
SECTION 707
CHAPTER 8
INDUSTRIAL AND SPECIAL WASTE [Go to Page]
SECTION 801
APPLICABILITY
SECTION 802
GENERAL PROVISIONS
SECTION 803 GENERAL
DISCHARGE REQUIREMENTS
SECTION 804
PROHIBITED DISCHARGES [Go to Page]
Conventionals Concentration (mg/l) (except as indicated)
SECTION 805
STORAGE OF PROHIBITED, TOXIC, OR HAZARDOUS SUBSTANCES
SECTION 806
DISCHARGE AUTHORIZATION PERMITS
SECTION 807
RIGHT OF ENTRY
SECTION 808
REPORTING REQUIREMENTS
SECTION 809
SAMPLING AND ANALYSES
SECTION 810
PENALTIES
SECTION 811
PUBLIC NOTICE OF VIOLATIONS
SECTION 812
LIABILITY FOR EXPENSES
SECTION 813
NOTICE
SECTION 814
HAULED WASTES
SECTION 815
FEES
SECTION 816
UPSET PROVISION
(Categorical Industrial Users only)
SECTION 817
BYPASS PROVISION [Go to Page]

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