WSR 07-01-094

PERMANENT RULES

BUILDING CODE COUNCIL


[ Filed December 19, 2006, 10:18 a.m. , effective July 1, 2007 ]


Effective Date of Rule: July 1, 2007.

Purpose: To adopt and amend the 2006 Edition of the Uniform Plumbing Code, chapters 51-56 and 51-57 WAC.

Citation of Existing Rules Affected by this Order: Amending 13.

Statutory Authority for Adoption: RCW 19.27.190 and 19.27.020.

Other Authority: Chapters 19.27 and 34.05 RCW.

Adopted under notice filed as WSR 06-16-111 on August 1, 2006.

Number of Sections Adopted in Order to Comply with Federal Statute: New 0, Amended 0, Repealed 0; Federal Rules or Standards: New 0, Amended 0, Repealed 0; or Recently Enacted State Statutes: New 0, Amended 0, Repealed 0.

Number of Sections Adopted at Request of a Nongovernmental Entity: New 1, Amended 5, Repealed 0.

Number of Sections Adopted on the Agency's Own Initiative: New 0, Amended 7, Repealed 0.

Number of Sections Adopted in Order to Clarify, Streamline, or Reform Agency Procedures: New 0, Amended 0, Repealed 0.

Number of Sections Adopted Using Negotiated Rule Making: New 0, Amended 0, Repealed 0; Pilot Rule Making: New 0, Amended 0, Repealed 0; or Other Alternative Rule Making: New 1, Amended 11, Repealed 0.

Date Adopted: November 17, 2006.

John Neff

Council Chair

OTS-8965.4


AMENDATORY SECTION(Amending WSR 04-01-110, filed 12/17/03, effective 7/1/04)

WAC 51-56-003   Uniform Plumbing Code.   The ((2003)) 2006 edition of the Uniform Plumbing Code, published by the International Association of Plumbing and Mechanical Officials, is hereby adopted by reference with the following additions, deletions and exceptions: Provided that chapters 12 and 15 of this code are not adopted. Provided further, that those requirements of the Uniform Plumbing Code relating to venting and combustion air of fuel fired appliances as found in chapter 5 and those portions of the code addressing building sewers are not adopted.

[Statutory Authority: RCW 19.27.031 and 19.27.074. 04-01-110, 51-56-003, filed 12/17/03, effective 7/1/04; 02-01-114, 51-56-003, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 04-01-110, filed 12/17/03, effective 7/1/04)

WAC 51-56-008   Implementation.   The Uniform Plumbing Code adopted by chapter 51-56 WAC shall become effective in all counties and cities of this state on July 1, ((2004)) 2007, unless local government residential amendments have been approved by the state building code council.

[Statutory Authority: RCW 19.27.031 and 19.27.074. 04-01-110, 51-56-008, filed 12/17/03, effective 7/1/04; 02-01-114, 51-56-008, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 04-01-110, filed 12/17/03, effective 7/1/04)

WAC 51-56-0200   Chapter 2 -- Definitions.  


205.0 Certified Backflow Assembly Tester - A person certified by the Washington state department of health under chapter 246-292 WAC to inspect (for correct installation and approval status) and test (for proper operation) approved backflow assemblies.


210.0 Hot Water - This definition is not adopted.


218.0 Plumbing System - Includes all potable water, building supply and distribution pipes, all plumbing fixtures and traps, all drainage and vent pipe(s), and all building drains including their respective joints and connection, devices, receptors, and appurtenances within the property lines of the premises and shall include potable water piping, potable water treating or using equipment, medical gas and medical vacuum systems, and water heaters: Provided, That no certification shall be required for the installation of a plumbing system within the property lines and outside a building.

[Statutory Authority: RCW 19.27.031 and 19.27.074. 04-01-110, 51-56-0200, filed 12/17/03, effective 7/1/04; 02-01-114, 51-56-0200, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 04-01-110, filed 12/17/03, effective 7/1/04)

WAC 51-56-0300   Chapter 3 -- General regulations.  


301.1.3 Standards. Standards listed or referred to in this chapter or other chapters cover materials which will conform to the requirements of this code, when used in accordance with the limitations imposed in this or other chapters thereof and their listing. Where a standard covers materials of various grades, weights, quality, or configurations, there may be only a portion of the listed standard which is applicable. Design and materials for special conditions or materials not provided for herein are allowed to be used by special permission of the authority having jurisdiction after the authority having jurisdiction has been satisfied as to their adequacy in accordance with Section 301.2.


311.4 Except as hereinafter provided in Sections 908.0, 909.0, 910.0, and Appendix L, Section L 6.0, 7.0 and 8.0, no vent pipe shall be used as a soil or waste pipe, nor shall any soil or waste pipe be used as a vent.


313.6 No water, soil, or waste pipe shall be installed or permitted outside of a building or in an exterior wall unless, where necessary, adequate provision is made to protect such pipe from freezing. All hot and cold water pipes installed outside the conditioned space shall be insulated to a minimum R-3.


313.7 All pipe penetrating floor/ceiling assemblies and fire-resistance rated walls or partitions shall be protected in accordance with the requirements of the building code.


((314.5.1 In Seismic Design Categories C, D, E and F hubless cast iron piping in sizes 5 inches and larger suspended in exposed locations over public or high traffic areas, pipe over 4 feet in length shall be provided with support on both sides of the coupling.))

[Statutory Authority: RCW 19.27.031 and 19.27.074. 04-01-110, 51-56-0300, filed 12/17/03, effective 7/1/04; 02-01-114, 51-56-0300, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 04-01-110, filed 12/17/03, effective 7/1/04)

WAC 51-56-0400   Chapter 4 -- Plumbing fixtures and fixture fittings.  


402.0 Water-Conserving Fixtures and Fittings.


402.1
The purpose of this section shall be to implement water conservation performance standards in accordance with RCW 19.27.170.


402.2 Application.
This section shall apply to all new construction and all remodeling involving replacement of plumbing fixtures and fittings in all residential, hotel, motel, school, industrial, commercial use, or other occupancies determined by the council to use significant quantities of water. Plumbing fixtures, fittings and appurtenances shall conform to the standards specified in this section and shall be provided with an adequate supply of potable water to flush and keep the fixtures in a clean and sanitary condition without danger of backflow or cross-connection.


402.3 Water Efficiency Standards.


402.3.1
Standards for Vitreous China Plumbing Fixtures.


402.3.1.1
The following standards shall be adopted as plumbing materials, performance standards, and labeling standards for water closets and urinals. Water closets and urinals shall meet either the ANSI/ASME standards or the CSA standard.


ANSI/ASME A112.19.2M-1998 Vitreous China Plumbing Fixtures
ANSI/ASME A112.19.6-1995 Hydraulic Requirements for Water Closets and Urinals
CSA B45 CSA Standards on Plumbing Fixtures

402.3.1.2 The maximum water use allowed in gallons per flush (gpf) or liters per flush (lpf) for any of the following water closets shall be the following:


Tank-type toilets 1.6 gpf/6.0 lpf
Flushometer-valve toilets 1.6 gpf/6.0 lpf
Flushometer-tank toilets 1.6 gpf/6.0 lpf
Electromechanical hydraulic toilets 1.6 gpf/6.0 lpf

EXCEPTIONS: 1. Water closets located in day care centers, intended for use by young children may have a maximum water use of 3.5 gallons per flush or 13.25 liters per flush.
2. Water closets with bed pan washers may have a maximum water use of 3.5 gallons per flush or 13.25 liters per flush.
3. Blow out bowls, as defined in ANSI/ASME A112.19.2M, Section 5.1.2.3 may have a maximum water use of 3.5 gallons per flush or 13.25 liters per flush.

402.3.1.3 The maximum water use allowed for any urinal shall be 1.0 gallons per flush or 3.78 liters per flush.


402.3.1.4
No urinal or water closet that operates on a continuous flow or continuous flush basis shall be permitted.


402.3.1.5
This section does not apply to fixtures installed before the effective date of this Section, that are removed and relocated to another room or area of the same building after the effective date of this Section.


402.3.2
Standards for Plumbing Fixture Fittings.


402.3.2.1
The following standards are adopted as plumbing material, performance requirements, and labeling standards for plumbing fixture fittings. Faucets, aerators, and shower heads shall meet either the ANSI/ASME standard or the CSA standard.


ANSI/ASME A112.18.1M-1996 Plumbing Fixture Fittings
CSA B125 Plumbing Fittings

402.3.2.2 The maximum water use allowed for any shower head is 2.5 gallons per minute or 9.5 liters per minute.

EXCEPTION: Emergency use showers shall be exempt from the maximum water usage rates.

402.3.2.3 The maximum water use allowed in gallons per minute (gpm) or liters per minute (lpm) for any of the following faucets and replacement aerators is the following:


Lavatory faucets 2.5 gpm/9.5 lpm
Kitchen faucets 2.5 gpm/9.5 lpm
Replacement aerators 2.5 gpm/9.5 lpm
Public lavatory faucets other than metering 0.5 gpm/1.9 lpm

402.4 Metering Valves. Lavatory faucets located in restrooms intended for use by the general public shall be equipped with a metering valve designed to close by spring or water pressure when left unattended (self-closing).

EXCEPTIONS: 1. Where designed and installed for use by persons with a disability.
2. Where installed in day care centers, for use primarily by children under 6 years of age.

402.5 Implementation.


402.5.1
The standards for water efficiency and labeling contained within Section 402.3 shall be in effect as of July 1, 1993, as provided in RCW 19.27.170 and amended July 1, 1998.


402.5.2
No individual, public or private corporation, firm, political subdivision, government agency, or other legal entity, may, for purposes of use in the state of Washington, distribute, sell, offer for sale, import, install, or approve for installation any plumbing fixtures or fittings unless the fixtures or fittings meet the standards as provided for in this Section.


Section((s)) 402.6 ((through 402.9 are)) is not adopted.


((412.2)) 411.2 Location of Floor Drains. Floor drains shall be installed in the following areas:


((412.2.1)) 411.2.1
Toilet rooms containing two (2) or more water closets or a combination of one (1) water closet and one (1) urinal, except in a dwelling unit. The floor shall slope toward the floor drains.


((412.2.2)) 411.2.2
Laundry rooms in commercial buildings and common laundry facilities in multifamily dwelling buildings.


((413.0)) 412.0 Minimum Number of Required Fixtures. For minimum number of plumbing fixtures required, see Building Code chapter 29 and Table 2902.1.


Sections ((413.1)) 412.1 through ((413.7)) 412.7 and Table 4-1 are not adopted.

[Statutory Authority: RCW 19.27.031 and 19.27.074. 04-01-110, 51-56-0400, filed 12/17/03, effective 7/1/04; 02-01-114, 51-56-0400, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 04-01-110, filed 12/17/03, effective 7/1/04)

WAC 51-56-0500   Chapter 5 -- Water heaters.  


501.0 General. The regulations of this chapter shall govern the construction, location, and installation of fuel burning and other water heaters heating potable water. The minimum capacity for water heaters shall be in accordance with the first hour rating listed in Table 5-1. See the Mechanical Code for combustion air and installation of all vents and their connectors. All design, construction, and workmanship shall be in conformity with accepted engineering practices, manufacturer's installation instructions, and applicable standards and shall be of such character as to secure the results sought to be obtained by this Code. No water heater shall be hereinafter installed which does not comply in all respects with the type and model of each size thereof approved by the authority having jurisdiction. A list of accepted gas equipment standards is included in Table 14-1.


TABLE 5-11,3

Number of Bathrooms 1 to 1.5 2 to 2.5 3 to 3.5
Number of Bedrooms 1 2 3 2 3 4 5 3 4 5 6
First Hour Rating2, Gallons 42 54 54 54 67 67 80 67 80 80 80

Notes: 1The first hour rating is found on the "Energy Guide" label.
2Nonstorage and solar water heaters shall be sized to meet the appropriate first hour rating as shown in the table.
3For replacement water heaters, see Section 101.4.1.1.1.

502.2 Chimney Delete definition.


502.3 Chimney, Factory-Built Delete definition.


502.4 Chimney, Masonry Delete definition.


502.5 Chimney, Metal
Delete definition.


502.7 Direct Vent Appliance
Delete definition.


502.8 Flue Collar
Delete definition.


502.9 Gas Vent, Type B
Delete definition.


502.10 Gas Vent, Type L Delete definition.


((502.11)) 502.12 Vent Delete definition.


((502.12)) 502.13 Vent Connector
Delete definition.


((502.13)) 502.14 Venting System Delete definition.


504.1 Inspection of Chimneys or Vents. Delete paragraph.


((505.1 Prohibited Locations. Water heaters which depend on the combustion of fuel for heat shall not be installed in a room used or designed to be used for sleeping purposes, bathroom, clothes closets or in a closet or other confined space opening into a bath or bedroom.

EXCEPTIONS: 1. Direct vent water heaters.
2. Water heaters installed in a closet that has a weather-stripped solid door with an approved door closing device, and designed exclusively for the water heater and where all air for combustion and ventilation is supplied from the outdoors.
3. Water heaters of the automatic storage type installed as a replacement in a bathroom, when specifically approved, properly vented and supplied with adequate combustion air.

Where not prohibited by other regulations, water heaters may be located under a stairway or landing.))


505.1 Location. Water heater installation in bedrooms and bathrooms shall comply with one of the following:

(1) Fuel-burning water heaters may be installed in a closet located in the bedroom or bathroom provided the closet is equipped with a listed, gasketed door assembly and a listed self-closing device. The self-closing door assembly shall meet the requirements of Section 505.1.1. The door assembly shall be installed with a threshold and bottom door seal and shall meet the requirements of Section 505.1.2. All combustion air for such installations shall be obtained from the outdoors in accordance with the International Mechanical Code. The closet shall be for the exclusive use of the water heater.

(2) Water heater shall be of the direct vent type.


506.2 All storage-type water heaters deriving heat from fuels or types of energy other than gas, shall be provided with, in addition to the primary temperature controls, an over-temperature safety protection device constructed, listed, and installed in accordance with nationally recognized applicable standards for such devices and a combination temperature and pressure relief valve.


507.0 Combustion Air. For issues relating to combustion air, see the Mechanical Code.


Sections 507.1 through 507.10 are not adopted.


Sections 508.6 through 508.9 are not adopted.


508.12 Delete entire section.


508.18 Venting of Flue Gases - Delete entire section.


Sections 508.20 through 508.24.5 are not adopted.


((509.0 Access and Working Space.


509.1 Every water heater installation shall be accessible for inspection, repair, or replacement. The appliance space shall be provided with an opening or doorway of sufficient size to remove the water heater. In no case shall such opening or doorway be less than 24 inches in width. Such access shall be continuous and shall be one or any combination of the following means:

(1) By an opening or door, and passageway not less than 2 feet in width and large enough to permit removal of the water heater, but not less than 30 inches in height. Stairways and ramps leading to or part of such passageways shall comply with the building code.

(2) Every attic, roof, mezzanine, or platform more than 8 feet above the ground or floor level shall be made accessible by a stairway or ladder permanently fastened to the building. Such a ladder or stairway shall not be more than 18 feet in length between landings and not less than 14 inches in width. Such a ladder shall have rungs spaced not more than 14 inches center to center and not less than 6 inches from the face of the wall. Each stile is to extend 30 inches above the surface to be reached, or as high as possible, if height is limited. Permanent ladders for water heater access need not be provided at parapets or walls less than 30 inches in height.


EXCEPTION: A portable ladder may be used for access for water heaters in attics on the single story portion of a Group R or U Occupancy.

(3) By a trap door or opening and passageway not less than 30 inches by 30 inches, but in no case smaller than the water heater. The passageway shall be continuous from the trap door or opening to the water heater. The trap door or opening shall be located not more than 20 feet from the water heater.

(4) Every passageway to an attic water heater shall have an unobstructed solid continuous flooring not less than 24 inches wide from the trap door or opening to the water heater. If the trap door or opening is more than 8 feet above the floor, a stairway or ladder permanently fastened to the building shall be provided. Such stairway or ladder shall lead directly to the edge of the trap door or opening and shall comply with the provisions of this section.


EXCEPTION: A portable ladder may be used for access for water heaters in attics on the single-story portion of a Group R or U Occupancy.

(5) By an unobstructed catwalk not less than 24 inches wide. Access to the catwalk shall be by ladder or stairs complying with the provisions of this section.


509.2 Attic and underfloor water heater locations shall be provided with an electric outlet and lighting fixture at or near the water heater. The lighting fixture shall be controlled by a switch located adjacent to the opening or trap door.


509.3 An unobstructed solidly floored working surface not less than 30 inches in depth and width shall be provided immediately in front of the firebox access opening. A door opening into such space shall not be considered an obstruction.


Sections 509.3.1 through 509.3.4 are not adopted.


Sections 510.1 through 511.2.25 are not adopted.
))


510.0 Venting of Equipment. Delete entire section.


511.0 Sizing of Category I Venting Systems. Delete entire section.


512.0 Direct Vent Equipment. Delete entire section.


Chapter 5, Part II is not adopted.

[Statutory Authority: RCW 19.27.031 and 19.27.074. 04-01-110, 51-56-0500, filed 12/17/03, effective 7/1/04; 02-01-114, 51-56-0500, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 04-01-110, filed 12/17/03, effective 7/1/04)

WAC 51-56-0600   Chapter 6 -- Water supply and distribution.  


603.0 Cross-Connection Control. Cross-connection control shall be provided in accordance with the provisions of this chapter. Devices or assemblies for protection of the public water system must be models approved by the department of health under WAC 246-290-490. The authority having jurisdiction shall coordinate with the local water purveyor where applicable in all matters concerning cross-connection control within the property lines of the premises.

No person shall install any water operated equipment or mechanism, or use any water treating chemical or substance, if it is found that such equipment, mechanism, chemical or substance may cause pollution or contamination of the domestic water supply. Such equipment or mechanism may be permitted only when equipped with an approved backflow prevention device or assembly.


603.1 Approval of Devices or Assemblies. Before any device or assembly is installed for the prevention of backflow, it shall have first been approved by the authority having jurisdiction. Devices or assemblies shall be tested for conformity with recognized standards or other standards acceptable to the authority having jurisdiction that are consistent with the intent of this code.

All devices or assemblies installed in a potable water supply system for protection against backflow shall be maintained in good working condition by the person or persons having control of such devices or assemblies. Such devices or assemblies shall be tested in accordance with Section 603.3.3 and WAC 246-290-490. If found to be defective or inoperative, the device or assembly shall be replaced or repaired. No device or assembly shall be removed from use or relocated or other device or assembly substituted, without the approval of the authority having jurisdiction.

Testing shall be performed by a Washington state department of health certified backflow assembly tester.


603.3.3 For devices and assemblies other than those regulated by the Washington department of health in conjunction with the local water purveyor for the protection of public water systems, the authority having jurisdiction shall ensure that the premise owner or responsible person shall have the backflow prevention assembly tested by a Washington state department of health certified backflow assembly tester:

(1) At the time of installation, repair or relocation; and

(2) At least on an annual schedule thereafter, unless more frequent testing is required by the authority having jurisdiction.


603.4.6.1
Potable water supplies to systems having no pumps or connections for pumping equipment, and no chemical injection or provisions for chemical injection, shall be protected from backflow by one of the following devices:

(1) Atmospheric vacuum breaker.

(2) Pressure vacuum breaker.

(3) Spill-resistant pressure vacuum breaker.

(4) Reduced pressure backflow preventer.

(((4))) (5) A double check valve may be allowed when approved by the water purveyor and the authority having jurisdiction.

(((5) A spill proof pressure vacuum breaker may be allowed when approved by the water purveyor and the authority having jurisdiction.


603.4.11)) 603.4.10 Potable Water Make Up Connections to Steam or Hot Water Boilers shall be protected by an air gap or a reduced pressure principle backflow preventer.


((603.4.13)) 603.4.12 Potable Water Supply to Carbonatorsshall be protected by a listed reduced pressure principle backflow preventer as approved by the authority having jurisdiction for the specific use.


603.4.14 Backflow preventers shall not be located in any area containing fumes or aerosols that are toxic, poisonous, infectious, or corrosive.


((603.4.18.1)) 603.4.16.1 Except as provided under Sections ((603.4.18.2)) 603.4.16.2 and ((603.4.18.3)) 603.4.16.3, potable water supplies to fire protection systems that are normally under pressure, including but not limited to standpipes and automatic sprinkler systems, except in one or two family residential flow-through or combination sprinkler systems piped in materials approved for potable water distribution systems, shall be protected from back-pressure and back-siphonage by one of the following testable devices:

1. Double check valve assembly.

2. Double check detector assembly.

3. Reduced pressure backflow preventer.

4. Reduced pressure detector assembly.


Potable water supplies to fire protection systems that are not normally under pressure shall be protected from backflow and shall meet the requirements of the appropriate standard(s) referenced in Table 14-1.


((604.1 Water distribution pipe, building supply water pipe and fittings shall be of brass, copper, cast iron, CPVC, galvanized malleable iron, galvanized wrought iron, galvanized steel, PEX or other approved materials. Except as provided in Section 604.14, asbestos-cement, PE, PVC, PEX-AL-PEX or PE-AL-PE water pipe manufactured to recognized standards may be used for cold water building supply distribution systems outside a building. PEX-AL-PEX water pipe, tubing, and fittings, manufactured to recognized standards may be used for hot and cold water distribution systems within a building. Other products not listed in this section are acceptable for their intended use, provided that such materials or distribution systems are listed and approved in accordance with nationally recognized standards. All materials used in the water supply system, except valves and similar devices shall be of like material, except where otherwise approved by the authority having jurisdiction.)) 603.4.23 Potable Water Supply to Swimming Pools, Spas and Hot Tubs shall be protected by an airgap or a reduced pressure principle backflow preventer when:

(1) The unit is equipped with a submerged fill line; or

(2) The potable water supply is directly connected to the unit circulation system.


((604.14)) 604.15 Plastic water service piping may terminate within a building, provided the connection to the potable water distribution system shall be made as near as is practical to the point of entry and shall be accessible. Barbed insert fittings with hose clamps are prohibited as a transition fitting within the building.


608.5 Relief valves located inside a building shall be provided with a drain, not smaller than the relief valve outlet, of galvanized steel, hard drawn copper piping and fittings, CPVC, or listed relief valve drain tube with fittings which will not reduce the internal bore of the pipe or tubing (straight lengths as opposed to coils) and shall extend from the valve to the outside of the building with the end of the pipe not more than two (2) feet (610 mm) nor less than six (6) inches (152 mm) above the ground or the flood level of the area receiving the discharge and pointing downward. Such drains may terminate at other approved locations. No part of such drain pipe shall be trapped or subject to freezing. The terminal end of the drain pipe shall not be threaded.

EXCEPTION: Replacement water heating equipment shall only be required to provide a drain pointing downward from the relief valve to extend between two feet (610 mm) and six inches (152 mm) from the floor. No additional floor drain need be provided.

((609.10.2 Mechanical Devices. When listed mechanical devices are used, the manufacturer's specifications as to location and method of installation shall be followed.))


610.4 Systems within the range of Table 6-5 may be sized from that table or by the method set forth in Section 610.5.

Listed parallel water distribution systems shall be installed in accordance with their listing.

[Statutory Authority: RCW 19.27.031 and 19.27.074. 04-01-110, 51-56-0600, filed 12/17/03, effective 7/1/04; 02-01-114, 51-56-0600, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 02-01-114, filed 12/18/01, effective 7/1/02)

WAC 51-56-0700   Chapter 7 -- Sanitary drainage.  


701.1.2 ABS and PVC DWV piping installations shall be installed in accordance with IS 5((,)) and IS 9((, and Appendix M "Firestop Protection for DWV and Stormwater Application.")). Except for individual single family dwelling units, materials exposed within ducts or plenums shall have a flame-spread index of not more than 25 and a smoke developed index of not more than 50, when tested in accordance with the Test for Surface-Burning Characteristics of the Building Materials (See the Building Code standards based on ASTM E-84 and ANSI/UL 723).


704.3 ((Delete entire section.)) Except where specifically required to be connected indirectly to the drainage system, or when first approved by the authority having jurisdiction, all plumbing fixtures, drains, appurtenances, and appliances shall be directly connected to the drainage system of the building or premises.


710.3 The minimum size of any pump or any discharge pipe from a sump having a water closet connected thereto shall be not less than two (2) inches (52 mm).


Sections 710.3.1 through 710.3.3 are not adopted.


CHAPTER 7, PART II -- BUILDING SEWERS


Part II Building Sewers.
Delete all of Part II (Sections 713 through 723, and Tables 7-7 and 7-8).

[Statutory Authority: RCW 19.27.031, 19.27.074. 02-01-114, 51-56-0700, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 02-01-114, filed 12/18/01, effective 7/1/02)

WAC 51-56-0800   Chapter 8 -- Indirect wastes.  


((810.4 Strainers. Every indirect waste interceptor receiving discharge containing particles that would clog the receptor drain shall have a readily removable dome strainer.))

[Statutory Authority: RCW 19.27.031, 19.27.074. 02-01-114, 51-56-0800, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 02-01-114, filed 12/18/01, effective 7/1/02)

WAC 51-56-0900   Chapter 9 -- Vents.  


903.1.2 ABS and PVC DWV piping installations shall be installed in accordance with IS 5((,)) and IS 9((, and Appendix M "Firestop Protection for DWV and Stormwater Application.")). Except for individual single family dwelling units, materials exposed within ducts or plenums shall have a flame-spread index of not more than 25 and a smoke developed index of not more than 50, when tested in accordance with the Test for Surface-Burning Characteristics of the Building Materials (see the Building Code standards based on ASTM E-84 and ANSI/UL 723).


908.4.1 Where Permitted. Any combination of fixtures within one (1) or two (2) bathrooms located on the same floor level and serving dwelling units or sleeping units shall be permitted to be vented by a wet vent. The wet vent shall be considered the vent for the fixtures and shall extend from the connection of the dry vent along the direction of the flow in the drain pipe to the most downstream fixture drain connection to the horizontal branch drain. Only the fixtures within the bathroom(s) shall connect to the wet-vented horizontal branch drain. Any additional fixtures shall discharge downstream of the wet vent system and be conventionally vented.

[Statutory Authority: RCW 19.27.031, 19.27.074. 02-01-114, 51-56-0900, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 04-01-110, filed 12/17/03, effective 7/1/04)

WAC 51-56-1100   Chapter 11 -- Storm drainage.  


1101.3 Material Uses. Rainwater piping placed within the interior of a building or run within a vent or shaft shall be of cast iron, galvanized steel, wrought iron, brass, copper, lead, Schedule 40 ABS DWV, Schedule 40 PVC DWV, or other approved materials, and changes in direction shall conform to the requirements of Section 706.0. ABS and PVC DWV piping installations shall be installed in accordance with IS 5 and IS 9. Except for individual single-family dwelling units, materials exposed within ducts or plenums shall have a flame-spread index of not more than 25 and a smoke-developed index of not more than 50, when tested in accordance with the Test for Surface-Burning Characteristics of the Building Materials (see the Building Code standards based on ASTM E-84 and ANSI/UL 723).


1101.12.0 Cleanouts.


1101.12.1 Cleanouts for building storm drains shall comply with the requirements of this section. Rain leaders and conductors connected to a building storm sewer shall have a cleanout installed at the base of the outside leader or outside conductor before it connects to the horizontal drain. Cleanouts shall be placed inside the building near the connection between the building drain and the building sewer or installed outside the building at the lower end of the building drain and extended to grade.


1101.12.2 Each cleanout shall be installed so that it opens to allow cleaning in the direction of flow of the soil or waste or at right angles thereto, and except in the case of wye branch and end-of-line cleanouts, shall be installed vertically above the flow line of the pipe.


1101.12.3 Cleanouts installed under concrete or asphalt paving shall be made accessible by yard boxes, or extending flush with paving with approved materials and be adequately protected.


1101.12.4 Approved manholes may be installed in lieu of cleanouts when first approved by the authority having jurisdiction. The maximum distance between manholes shall not exceed three hundred (300) feet (91.4 m).

The inlet and outlet connections shall be made by the use of a flexible compression joint no closer than twelve (12) inches (305 mm) to, and not farther than three (3) feet (914 mm) from the manhole. No flexible compression joints shall be embedded in the manhole base.


1108.0 Controlled-Flow Roof Drainage. This section is not adopted.

[Statutory Authority: RCW 19.27.031 and 19.27.074. 04-01-110, 51-56-1100, filed 12/17/03, effective 7/1/04.]


AMENDATORY SECTION(Amending WSR 04-01-110, filed 12/17/03, effective 7/1/04)

WAC 51-56-1300   Chapter 13 -- Health care facilities and medical gas and vacuum systems.  


Part II Medical Gas and Vacuum Systems


1309.0 Scope.


1309.1
The provisions herein shall apply to the design, installation, testing, and verification of medical gas, medical vacuum systems, and related permanent equipment in hospitals, clinics, and other heath care facilities.


1309.2
The purpose of this chapter is to provide minimum requirements for the design, installation, testing and verification of medical gas, medical vacuum systems, and related permanent equipment, from the central supply system to the station outlets or inlets.


1313.3 Minimum Station Outlets/Inlets. Station outlets and inlets for medical gas and medical vacuum systems shall be provided as listed in chapter 246-320 WAC ((246-320-525)).


((1331.0)) 1328.0 System Verification.


((1331.1)) 1328.1 Prior to any medical gas system being placed in service, each and every system shall be verified as described in section ((1331.2)) 1328.2.


((1331.1.1)) 1328.1.1 Verification tests shall be performed only after all tests required in section ((1329.0)) 1327.0, Installer Performed Tests, have been completed.

Testing shall be conducted by a party technically competent and experienced in the field of medical gas and vacuum pipeline testing and meeting the requirements of ANSI/ASSE Standard 6030, Medical Gas Verifiers Professional Qualifications Standard.

Testing shall be performed by a party other than the installing contractor or material vendor.

When systems have been installed by in-house personnel, testing shall be permitted by personnel of that organization who meet the requirements of this section.

[Statutory Authority: RCW 19.27.031 and 19.27.074. 04-01-110, 51-56-1300, filed 12/17/03, effective 7/1/04; 02-01-114, 51-56-1300, filed 12/18/01, effective 7/1/02.]


AMENDATORY SECTION(Amending WSR 04-01-110, filed 12/17/03, effective 7/1/04)

WAC 51-56-1400   Chapter 14 -- Referenced standards.  


TABLE 14-1
Standards for Materials, Equipment, Joints and Connections


Where more than one standard has been listed for the same material or method, the relevant portions of all such standards shall apply.

Add the following standard to those listed in Table 14-1:


Standard Number Standard Title Application ((Indicate if Not Approved in the UPC))
NFPA 99-2005 Health Care Facilities Piping
NFPA 99C-2005 Gas and Vacuum Systems Piping
WAC 246-290-490 Washington State Department of Health Cross-connection Control Requirements Backflow Protection

[Statutory Authority: RCW 19.27.031 and 19.27.074. 04-01-110, 51-56-1400, filed 12/17/03, effective 7/1/04; 02-01-114, 51-56-1400, filed 12/18/01, effective 7/1/02.]


NEW SECTION
WAC 51-56-1600   Chapter 16 -- Gray water systems.  


Part I, Gray Water Systems, is not adopted.

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Washington State Code Reviser's Office