Transcript Document

2012 Plumbing Codes
International Plumbing Code
Uniform Plumbing Code
David McCarthy, P.E.
City of Phoenix
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Overview
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Phoenix Plumbing Code history
2012 Plumbing Codes
Code adoption process
Code amendments
Code differences
Making the process work
Questions and answers
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Phoenix Plumbing Code History
• Prior to September 1, 1991
– The Phoenix Construction Code was a stand
alone document which was created by the City of
Phoenix. The document was periodically
amended with no specific cycle.
• Effective September 1, 1991
– 1988 Uniform Plumbing Code with amendments
• Effective July 1, 1992
– 1991 Uniform Plumbing Code with amendments
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Plumbing Code History cont.
• Effective January 1, 1996
– 1994 Uniform Plumbing Code with amendments
• Effective March 12, 1999
– State of Arizona Plumbing Code – based on
1994 UPC with amendments
• Effective July 1, 2005
– State of Arizona Plumbing Code – based on
1994 UPC with State amendments
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Plumbing Code History cont.
• Effective July 1, 2007
– 2006 Uniform Plumbing Code with amendments
– 2006 International Fuel Gas Code with
amendments
• Effective July 1, 2013
– 2012 Uniform Plumbing Code with amendments
– 2012 International Plumbing Code with
amendments
– 2012 International Fuel Gas Code with
amendments
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2012 Plumbing Codes
• Overview
– The International Plumbing Code (IPC) and the
Uniform Plumbing Code (UPC) cover the initial
design of plumbing systems through the
installation and construction phases, and into the
maintenance of operating systems
– Fuel-gas appliances and systems are addressed
in the 2012 International Fuel Gas Code (IFGC)
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2012 Plumbing Codes
• Applicants have the choice to use the
2012 IPC or 2012 UPC
– The 2012 IPC is a performance-based code
– The 2012 UPC is a prescriptive code
– Both codes cover similar topics
– There are also differences
• How did we get here?
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Code Adoption Process
• City staff committee researches and
prepares recommendations
• Obtain input from stakeholders
• Staff and public recommendations presented
to DAB Technical Subcommittee
• DAB Subcommittee presents
recommendations to full DAB committee
• City Council Subcommittee review
• City Council for final adoption vote
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Code Adoption Process
• Staff committee completed a chapter comparison
between the two codes and received input from City
departments, industry and the public
• Staff made a presentation to DAB Technical
Subcommittee with recommendation to adopt the
2012 UPC
• DAB Technical Subcommittee heard testimony and
moved recommendation to full DAB for vote
• Full DAB committee deadlocked and moved
recommendation to City Council subcommittee
• City Council Subcommittee voted to adopt IPC
• City Council directed adoption of both codes
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2012 Plumbing Codes
• Next staff challenge, review both codes
– Determine if amendments required
– Should codes remain distinct?
– What is the same and different?
– Mixing of codes allowed?
– How will it affect review and inspections?
– What about licensing?
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Code Amendments
• Once a decision was made on the codes,
amendments were made to adapt the code
to local conditions and existing ordinances
• Staff and public submitted IPC and UPC
amendments for consideration
• Amendments were available for public
viewing on our website with written reasons
behind each change
• All amendments were passed through the
code adoption process
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Typical Code Proposal
CODE CHANGE PROPOSAL
Proposed Amendments to 2012 Uniform Plumbing Code
Section 1017.1
Submitted by: Phoenix Planning and Development Department Code Committee
1017.1 Interceptors Required. Repair garages and gasoline stations with grease racks or grease pits,
and factories that have oily, flammable, or both types of wastes as a result of manufacturing, storage,
maintenance, repair, or testing processes, and in hydraulic elevator pits shall be provided with an oil or
flammable liquid interceptor that shall be connected to necessary floor drains.
(Remainder of section to remain unchanged)
Exception: An oil interceptor is not required in hydraulic elevator pits where an approved alarm system is
installed.
Reasons:
Protect drainage system. Harmonize UPC with 2012 IPC section 1003.4 to be consistent in elevator
installations.
Cost Impact: Cost savings from installation of alarm system instead of oil interceptor.
ACTION TAKEN:
2012 Code Committee
Approved as submitted
Modified and approved
Development Advisory Board Technical Subcommittee
Approved as submitted
Modified and approved
Development Advisory Board
Approved as submitted
Modified and approved
Council Subcommittee
Approved as submitted
Modified and approved
City Council Action
Approved as submitted
Modified and approved
Denied
Denied
Denied
Denied
Denied
Date: 12/13/2012
No action taken
Date: 1/17/13
No action taken
Date: 1/17/13
No action taken
Date:
No action taken
Date:
No action taken
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2012 Common Amendments
• Minimum plumbing fixture calculation
• Drinking fountains and water
dispensers
• Backflow prevention devices
• Installation of low slope sewers
• Trap seal protection
• Grease interceptors
• Rainwater drainage systems
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Minimum Plumbing Fixtures
• UPC Table 422.1, IPC Table 403.1
– Tables from IBC, IPC, and UPC all match
– Deleted requirements for service sinks
– Use 15 occupants as threshold for separate
restrooms, 50 in Group B and M
– Urinal substitution back to 50%
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Drinking Fountains
• UPC 415.2, IPC 410.3
– Tables from IBC, IPC, and UPC all match
– Drinking fountains not required for occupant load
of 50 or less in all occupancies
– Defined water dispensers and water coolers
– In occupancies where drinking fountains are
required, water dispensers may be substituted
for not more than 50% of the required number of
drinking fountains
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Backflow Prevention
• UPC 603, IPC 608
– Backflow prevention device access, clearance
and aboveground requirements
– Occupancies that require secondary backflow
prevention devices
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Low Slope Sewers
• UPC 718.1, IPC 704.1
– Exception: The Authority Having Jurisdiction
may approve a lessor slope for building sewers
in lieu of a sewage ejector or pumping station
when a registered engineer or architect certifies
the building sewer design and its installation, and
when the building owner agrees in writing under
notary to accept the lessor slope. Certification of
the building sewer shall meet the special
inspection requirements of the Phoenix Building
Construction Code
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Trap Seal Protection
• UPC 1007.1, IPC 1002.4
– Exception: Trap seal primer valves are not
required when an alternative device is provided
to prevent evaporation of the liquid seal. Barrier
type floor drain devices used to prevent
evaporation shall conform to ASSE 1072, be
accessible for maintenance and installed in
accordance with manufacturer’s instructions. A
source of water for filling of traps shall be located
in the vicinity of the plumbing fixture
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Grease Interceptors
• UPC 1014, IPC 1003
– Grease traps and interceptors are regulated by
Water Services Department Environmental
Services Division so codes need to match
– Definitions
– Where devices are required
– List of approved devices
– Food waste disposal and dishwasher
requirements
– Capacity and sizing of devices
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Rainwater Drainage Systems
• UPC Ch. 11, IPC Ch. 11
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Scupper location and sizing criteria
Rainfall rate of 3 inches per hour
Secondary drains
Prohibition on combined systems
Food waste disposal and dishwasher
requirements
– Capacity and sizing of devices
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Other Amendments
• UPC Chapter 12 Fuel Gas Piping
– was reserved due to possible conflicts
with the 2012 International Fuel Gas Code
– Sizing tables are the same
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Code Differences
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Water heater requirements
Domestic water supply sizing
Sanitary drain pipe sizing and slopes
Dishwashing sink indirect versus direct
Venting options allowed, air admittance valves
Cleanouts for rainwater drain systems
Provisions for alternate water systems
Appendices
To be determined…..
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Mixing of Codes
• Permit applicant is asked to identify the code used
for plumbing design
• Review and inspection are then completed using the
code referenced on the plan
• In certain cases it may be impractical to use
different techniques such as pipe sizing or venting
• Specific items can be judged on a case-by-case
basis by plan review and/or inspections
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How Do We Make It Work?
• City and design community work together towards
solutions through open dialogue and concentrating
on what works
• Continuous education for staff, designers and
installers
• City licensing to incorporate both codes
• Bottom line is to insure safe and sanitary systems
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Questions?
• David McCarthy
Mike Long
• Mechanical Plans
Engineer
Inspections Field
Supervisor
• (602) 534-2734
• david.mccarthy@
phoenix.gov
(602) 501-1206
mike.long@phoenix.
gov
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