ARTICLE VI. STATE OF
Sec. 8-600. Adopted; where filed; amendments.
(a) That certain document known as the "Arizona State Plumbing Code," as adopted by the Arizona Uniform Plumbing Code Commission, and which has been published as a code in book form by the International Association of Plumbing and Mechanical Officials, with amendments as published by the Arizona Secretary of State in the Arizona Administrative Code, Title 4, Chapter 48, is hereby adopted as the Plumbing Code of the City of Tempe and made a part of this article, the same as though said code was specifically set forth in full herein. Three (3) copies of said code shall be filed in the office of the city clerk and kept available for public use and inspection.
(b) As permitted by Arizona Revised Statutes, §§ 9-805(b) and 41-619, the "International Plumbing Code, 2003 Edition," as published by the International Code Council, three (3) copies with amendments of which are on file in the office of the city clerk, may be used, on an individual project basis as a substitute and variance where deemed appropriate by the building official. The provisions of this article, other than subsections (a) and (b) of this section, are amendments to the International Plumbing Code as now or hereafter adopted. All sections in this article, other than subsections (a) and (b) of this section, shall be considered to be both a part of this code and a part of the International Plumbing Code.
(Ord. No. 2005.89, 12-1-05)
Charter
reference—Adoption
by reference, § 2.14.
State law reference—Adoption by
reference, A.R.S. § 9-801 et seq.
Sec. 201. General.
Section 201.4 is hereby amended as follows:
201.4. Terms not defined. Where terms are not defined through the
methods authorized by this chapter, such terms shall have ordinarily accepted
meanings such as the context implies. Webster’s Third New International Dictionary
of the English Language, Unabridged, shall be considered as providing
ordinarily accepted meanings.
(Ord. No.
2005.89, 12-1-05)
Sec. 312. Tests and
inspections.
Section 312.1.1 is hereby amended as follows:
312.1.1. Test gauges. Gauges used for testing shall be as follows:
1.
Tests requiring a pressure of ten (10)
psi (69 kPa) or less shall utilize a testing gauge having increments of 0.10
psi (0.69 kPa) or less.
2.
Tests requiring a pressure of ten (10)
psi (69 kPa) but less than or equal to one hundred (100) psi (690 kPa) shall
utilize a testing gauge having increments of one psi (7 kPa) or less.
3. Tests requiring a pressure of greater than
one hundred (100) psi (690 kPa) shall utilize a testing gauge having increments
of two (2) psi (14 kPa) or less.
Pressure tests required by this code,
which are performed utilizing dial gauges, shall be limited to a gauge having a
maximum gauge rating not exceeding twice the applied test pressure.
Section 312.5 is hereby amended as follows:
312.5.
Water supply system test. Upon completion of a section or the entire
water supply system, the system or portion completed, shall be tested and
proven tight under a water pressure not less than the working pressure of the
system; or, for piping systems other than plastic, by an air test of not less
than fifty (50) psi (344 kPa). This
pressure shall be held for a test period of at least fifteen (15) minutes. The water utilized for tests shall be obtained
from a potable source of supply. The
required tests shall be performed in accordance with this section.
(Ord. No. 2005.89, 12-1-05)
Sec. 313. Equipment efficiencies.
Section 312.1.1 is hereby repealed.
(Ord. No. 2005.89, 12-1-05)
Sec. 504. Safety devices.
Section 504.6.1 is hereby amended as follows:
Section
504.6.1. Discharge. The relief valve
shall discharge full size to a safe place of disposal such as, outside the
building or an indirect waste receptor. The
discharge pipe shall not have any trapped sections, shall be installed to drain
by gravity flow and shall terminate atmospherically not less than six (6)
inches (152 mm) nor more than twenty-four (24) inches (610 mm) above the floor
or finish grade pointing downward. The
outlet end of the discharge pipe shall not be threaded and such discharge pipe
shall not have a valve or tee installed.
Secion 504.7.1 is hereby amended as follows:
504.7.1.
Pan
size and drain. The pan shall not be
less than 1.5 inches (38 mm) deep and shall be of sufficient size and shape to
receive all dripping or condensate from the tank or water heater. The pan shall
be drained by an indirect waste pipe having a minimum diameter of three-fourths
(3/4) (19 mm) installed with a uniform alignment at a uniform slope in the
direction of discharge of not less than one-eighth (1/8) unit vertical in twelve
(12) units’ horizontal (one percent slope).
(Ord. No. 2005.89, 12-1-05)
Sec. 607. Hot water supply system.
Section 607.2 is hereby amended as follows:
607.2.
Hot
water supply temperature maintenance. Where the developed length of hot water piping
from the source of hot water supply to the farthest fixture exceeds one hundred
(100) feet (30 480 mm), the hot water supply system may be provided with a
method of maintaining the temperature.
Section 607.2.1 is hereby amended as follows:
607.2.1. Piping insulation. Circulating hot water system piping may be
insulated in accordance with the International Energy Conservation Code.
(Ord. No. 2005.89, 12-1-05)
Sec. 608. Protection of potable water supply.
Table 608.1 is hereby amended as follows:
TABLE 608.1
APPLICATION OF BACKFLOW PREVENTERS
|
DEVICE |
DEGREE OF HAZARDa |
APPLICATIONb |
APPLICABLE STANDARDS |
|
Air gap |
High or low hazard |
Backsiphonage or
backpressure |
ASME A112.1.2 |
|
Air gap fittings for
use with plumbing fixtures, appliances and appurtenances |
High or low hazard |
Backsiphonage or
backpressure |
ASME A112.1.3 |
|
Antisiphon-type fill
valves for gravity water closet flush tanks |
High hazard |
Backsiphonage only |
ASSE1002, CSA-B125 |
|
Barometric loop |
High or low hazard |
Backsiphonage only |
(See Section 608.13.4) |
|
Reduced pressure
principle backflow preventer |
High or low hazard |
Backpressure or
backsiphonage Sizes 3/8" –
16" |
ASSE 1013, AWWA C511,
CAN/CSA B64.4 |
|
Double check backflow prevention assembly |
Low hazard |
Backpressure or
backsiphonage Sizes 3/8" –
16" |
ASSE 1015, AWWA C510 |
|
Double-check-valve-type
backflow preventer |
Low hazard |
Backpressure or
backsiphonage Sizes ¼" – 1" |
ASSE 1024 |
|
Backflow preventer with
intermediate
atmospheric vents |
Low hazard |
Backpressure or
backsiphonage Sizes ¼" – ¾" |
ASSE 1012,
CAN/CSA-B64.3 |
|
Backflow preventer for carbonated beverage
machines |
Low hazard |
Backpressure or
backsiphonage Sizes ¼" –
3/8" |
ASSE 1022 |
|
Pipe-applied
atmospheric-type vacuum breaker |
High or low hazard |
Backsiphonage only
Sizes ¼" – 4" |
ASSE 1001,
CAN/CSA-B64.1.1 |
|
Pressure vacuum breaker
assembly |
High or low hazard |
Backsiphonage only
Sizes ½" – 2" |
ASSE 1020 |
|
Hose-connection vacuum breaker |
High or low hazard |
Low head backpressure
or backsiphonage Sizes ½", ¾",
1" |
ASSE 1011,
CAN/CSA-B64.2 |
|
Vacuum breaker wall
hydrants, frost-resistant, automatic draining type |
High or low hazard |
Low head backpressure
or backsiphonage Sizes ¾", 1" |
ASSE 1019,
CAN/CSA-B64.2.2 |
|
Laboratory faucet
backflow preventer |
High or low hazard |
Low head backpressure
and backsiphonage |
ASSE 1035, CSA B64.7 |
|
Hose connection
backflow preventer |
High or low hazard |
Low head backpressure,
rated working pressure backpressure or backsiphonage Sizes ½" – 1" |
ASSE 1052 |
|
Spillproof vacuum
breaker |
High or low hazard |
Backsiphonage only
Sizes ¼" – 2" |
ASSE 1056 |
For SI: 1 inch = 25.4 mm.
a. Low hazard–See Pollution (Section 202).
High
hazard–See Contamination (Section 202).
b. See Backpressure (Section 202).
See
Backpressure, low head (Section 202).
See
Backsiphonage (Section 202).
Section 608.16.4 is hereby repealed.
(Ord. No. 2005.89, 12-1-05)
Sec. 701. General.
Section 701.2 is hereby amended as follows:
701.2. Sewer required. Every building in which plumbing fixtures are installed and all premises having drainage piping shall be connected to a public sewer, where available, or an approved private disposal system in accordance with the Maricopa County Health Department Environmental Service Division. The public sewer may be considered as not being available only when so determined by the Maricopa County Health Department Environmental Service Division.
(Ord. No. 2005.89, 12-1-05)
Sec. 803.
Special wastes.
Section 803.2 is hereby amended as follows:
803.2. Neutralizing device required for corrosive wastes. Corrosive liquids, spent acids or other harmful chemicals that destroy or injure a drain, sewer, soil or waste pipe or create noxious or toxic fumes or interfere with sewage treatment processes shall not be discharged into the plumbing system without being thoroughly diluted, neutralized or treated by passing through an approved dilution or neutralizing device. Such devices shall be automatically provided with sufficient supply of diluting water or neutralizing medium so as to make the contents non-injurious before discharge into the drainage system. The nature of the corrosive or harmful waste and the method of its treatment or dilution shall be approved prior to installation. Detailed plans and specifications of the pretreatment facilities may be required by the water utilities manager or designate.
(Ord. No. 2005.89, 12-1-05)
Sec. 904. Vent terminals.
Section 904.1 is hereby amended as follows:
904.1. Roof extension. All open vent pipes that extend through a roof shall be terminated at least six (6) inches (152 mm) above the roof, except that where a roof is to be used for any purpose other than weather protection, the vent extensions shall be run at least seven (7) feet (2134 mm) above the roof.
(Ord. No. 2005.89, 12-1-05)
Sec. 1003. Interceptors and separators.
Section 1003.1 is hereby amended as follows:
Section 1003.1. Where required. Interceptors and separators shall be provided, when in the judgment of the water utilities manager or designate, to prevent the discharge of oil, grease, sand and other substances harmful or hazardous to the building drainage system, the public sewer or sewage treatment plant or processes.
Section 1003.2 is hereby amended as follows:
1003.2. Approval. The size, type and location of each interceptor and of each separator shall be approved by the water utilities manager or designate and shall be designed and installed in accordance with the manufacturer’s instructions and the requirements of this section based on the anticipated conditions of use. Wastes that do not require treatment or separation shall not be discharged into any interceptor or separator.
(Ord. No. 2005.89, 12-1-05)
Sec. 1106. Size of conductors, leaders and storm drains.
Section 1106.1 is hereby amended as follows:
1106.1. General. The size of vertical conductors and leaders, building storm drains, building storm sewers, and any horizontal branches of such drains or sewers shall be based on an hourly rainfall rate of three (3) inches per hour.
(Ord. No. 2005.89, 12-1-05)
Sec. 1107. Secondary (emergency) roof drains.
Section 1107.2 is hereby amended as follows:
1107.2. Separate systems required. Secondary roof drain systems shall have the end point of discharge separate from the primary system. Discharge shall be above grade, in a location which would normally be observed by the building occupants or maintenance personnel.
EXCEPTION: Secondary drains may be connected to the primary drain system at a point not less than ten (10) feet (3048 mm) below the secondary drain inlet height when the primary system is designed for a six (6) inch per hour rainfall.
Section 1107.3 is hereby amended as follows:
1107.3. Sizing of secondary drains. Where roof drains are required, secondary drains having the same size as the roof drains shall be installed with the inlet flow line located two (2) inches (51 mm) above the low point of the roof, or overflow scuppers having three (3) times the size of the roof drains may be installed in the adjacent parapet walls. Scuppers shall be sized to prevent the depth of ponding water from exceeding that for which the roof was designed as determined by Section 1101.7, and the requirements of the International Building Code, Sections 1608.3.4 and 1608.3.5. Scuppers shall not have an opening dimension of less than four (4) inches (102 mm). The flow through the primary system shall not be considered when sizing the secondary roof drain system.
(Ord. No. 2005.89, 12-1-05)