Water Supply, Hydrants & Testing

Grounded in the retrieved California Wildland-Urban Interface Code — click a citation to read the verbatim passage:

• CWUIC § 507.3 High relevance — show source text

  507.3 Fire flow. Fire-flow requirements for buildings or portions of buildings and facilities shall be determined by an approved method or Appendix B.

  507.4 Water supply test. The fire code official shall be notified prior to the water supply test. Water supply tests shall be witnessed by the fire code official or approved documentation of the test shall be provided to the fire code official prior to final approval of the water supply system.

  507.5 Fire hydrant systems. Fire hydrant systems shall comply with Sections 507.5.1 through 507.5.6 and Appendix C or by an approved method.

  507.5.1 Where required. Where a portion of the facility or building hereafter constructed or moved into or within the jurisdiction is more than 400 feet (122 m) from a hydrant on a fire apparatus access road, as measured by an approved route around the exterior of the facility or building, on-site fire hydrants and mains shall be provided where required by the fire code official.

  Exception: For Group R-3 and Group U occupancies, equipped throughout with an approved automatic sprinkler system installed in accordance with Section 903.3.1.1, 903.3.1.2 or 903.3.1.3, the distance requirement shall be not more than 600 feet (183 m).

  507.5.1.1 Hydrant for standpipe systems. Buildings equipped with a standpipe system installed in accordance with Section 905 shall have a fire hydrant within 100 feet (30 480 mm) of the fire department connections.

  Exception: The distance shall be permitted to exceed 100 feet (30 480 mm) where approved by the fire code official.

  507.5.2 Inspection, testing and maintenance. Fire hydrant systems shall be subject to periodic tests as required by the fire code official. Fire hydrant systems shall be maintained in an operative condition at all times and shall be repaired where defective. Additions, repairs, alterations and servicing shall comply with approved standards. Records of tests and required maintenance shall be maintained.

  507.5.3 Private fire service mains and water tanks. Private fire service mains and water tanks shall be periodically inspected, tested and maintained in accordance with California Code of Regulations, Title 19, Division 1, Chapter 5.

  1. Private fire hydrants of all types: Inspection annually and after each operation; flow test and maintenance annually.
  2. Fire service main piping: Inspection of exposed, annually; flow test every 5 years.
  3. Fire service main piping strainers: Inspection and maintenance after each use.

  Records of inspections, testing and maintenance shall be maintained.

  507.5.4 Obstruction. Unobstructed access to fire hydrants shall be maintained at all times. The fire department shall not be deterred or hindered from gaining immediate access to fire protection equipment or fire hydrants.

  507.5.5 Clear space around hydrants. A 3-foot (914 mm) clear space shall be maintained around the circumference of fire hydrants, except as otherwise required or approved.

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  FIRE SERVICE FEATURES

  507.5.6 Physical protection. Where fire hydrants are subject to impact by a motor vehicle, guard posts or other approved means shall comply with Section 312.

  SECTION 508—FIRE COMMAND CENTER

• CWUIC § 4.1 High relevance — show source text

  Access
  and clearance shall be in accordance with the
  manufacturer’s instructions, and not less than
  a 12 inch clearance at the bottom for mainte-
  nance. May need platform/ladder for test and
  repair. May discharge water.
  Installation includes a fire protection system
  and is designed to operate under continuous
  pressure conditions.| |Reduced Pressure Princi-
  ple Backflow Prevention
  Assembly (two independ-
  ently acting loaded check
  valves, a differential pres-
  sure relief valve and
  means for field testing)|ASSE 1013;
  AWWA C511;
  CSA B64.4 or
  CSA B64.4.1|X|X|X|X|Horizontal unless otherwise listed. Access
  and clearance shall be in accordance with the
  manufacturer’s instructions, and not less than
  a 12 inch clearance at the bottom for mainte-
  nance. May need platform/ladder for test and
  repair. May discharge water.| |Spill-Resistant Pressure
  Vacuum Breaker (single
  check valve with air
  inlet vent and means of
  field testing)|ASSE 1056|X|––|X|––|Upright position. Minimum of 12 inches or
  listed distance above all downstream piping
  and flood-level rim of receptor.5| |Vacuum breaker wall
  hydrants, hose bibbs,
  freeze resistant, auto-
  matic draining type|ASSE 1019 or
  CSA B64.2.1.1|X|––|X|––|Installation includes wall hydrants and hose
  bibbs. Such devices are not for use under con-
  tinuous pressure conditions (means of shutoff
  downstream of device is prohibited).4,5|

  For SI units: 1 inch = 25.4 mm

  Notes: 1 See the description of devices and assemblies in this chapter. 2 Installation in pit or vault requires previous approval by the Authority Having Jurisdiction. 3 Refer to the general and specific requirement for installation. 4 Not to be subjected to operating pressure for more than 12 hours in a 24-hour period. 5 For deck-mounted and equipment-mounted vacuum breaker, see Section 603.5.13. 6 Shall be installed in accordance with Section 603.5.7.

  2025 CALIFORNIA PLUMBING CODE 143

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  WATER SUPPLY AND DISTRIBUTION

  TABLE 603.3.1 MINIMUM AIR GAPS FOR WATER DISTRIBUTION [4]

  FIXTURES	WHERE NOT AFFECTED BY SIDEWALLS1 (inches)	WHERE AFFECTED BY SIDEWALLS2 (inches)
  Effective openings3 not greater than1⁄2 of an inch in diameter	1	11⁄2
  Effective openings3 not greater than3⁄4 of an inch in diameter	11⁄2	21⁄4
  Effective openings3 not greater than 1 inch in diameter	2	3
  Effective openings3 greater than 1 inch in diameter	Two times the diameter of effective opening	Three times the diameter of effective opening

  For SI units: 1 inch = 25.4 mm

• CWUIC § 04-15 High relevance — show source text

  . . . . . . . . . 063928

  Table	1 Description of Items to be Furnished and Installed by Customer
  Item	Description
  1	Option 1: Meter Adapter, Cooper B-Line Cat. No. MARR20L45GRSD (160A) Use with Customer’s Panel Rated at 160A Continuous1, 2
  1	Option 2: Meter Adapter, Ekstrom Industries No. 722B (175A). Specify Left, Right, or Bottom Hub
  2	Combination Service Meter and Breaker Panel (rating as required)
  3	Pull Termination Box, 8” x 12” x 4”, Rain-Tight, Circle A-W (Cooper B-Line) No. R-9007A or Equivalent (see Note 4M on Page 2)
  4	Conduit, See Notes 4C and 4G on Page 1
  5	Hub to Be Closed and Made Tamper Proof
  6	Pull Termination Box, 12” x 26” x 6”, Rain-Tight, Circle A-W Catalog Number R-90008, or Equivalent (see Note 4K on Page 2)

  1 Fifth jaw accessory, use Cooper B-Line Cat. No. 50365. 2 Reducer hub and gasket accessories for 2” conduit, use Cooper B-Line Cat. No. AW200 and 12750A.

  061032 Page 2 of 4 Rev. #04: 04-15-11

  UG-1: Services Greenbook Residential and Small Commercial Overhead to Underground Electric Service Conversion

  Optional Removable by Customer To Be Removed by PG&E Meter Socket (see Figure 2 through Figure 7 on Pages 3 through 4) For Riser and Pull Box Detail (see Figure 2 through Figure 7 on Pages 3 through 4) For Gas and Water Sealing Requirements, see Documents 063927 and Document 063928 48” Min. 72” Max. Customer Shall Dig and Backfill Trench (see Note 4B on Page 1) Min. Bend Depth To PG&E Distribution System As required by	Col2	Col3
  Customer Shall Dig and Backfill Trench (see Note 4B on Page 1) For Riser and Pull Box Detail (see Figure 2 through Figure 7 on Pages 3 through 4) Meter Socket (see Figure 2 through Figure 7 on Pages 3 through 4) To Be Removed by PG&E For Gas and Water Sealing Requirements, seeDocuments 063927 andDocument 063928 To PG&E Distribution System Optional Removable by Customer 48” Min. 72” Max. As required by Min. Bend Depth

  Document 063927 and Document 063928

  Figure 1 Typical Service Conversion

  PG&E Service Termination Point

  See Note 4K on Page 2

  PG&E Service Termination Point (see Note 4L on Page 2)

• CWUIC § 0.249 Medium relevance — show source text

  The 2-way valves automatically close.|a. The 2-way valves automatically close.|Y / N| |b. Measure and record the differential pump pressure in feet of water column.|Feet Water
  Column =|| |c. The measurement across the pump in step 2b is within 5% of the measurement in step 1b.|c. The measurement across the pump in step 2b is within 5% of the measurement in step 1b.|Y / N| |Step 3: System returned to initial operating conditions.|Y / N|Y / N|

  B. Testing Results.	PASS / FAIL	Col3
  Step 1: Pressure measurement is within 5% of submittal data for all pumps.		
  Step 2: Pressure measurements are within 5%.		

  C. PASS / FAIL Evaluation (check one):	Col2
  	PASS: AllConstruction Inspection responses are complete and allTesting Results responses are “Pass.”
  	FAIL: AnyConstruction Inspection responses are incomplete_OR_ there is one or more “Fail” responses inTesting Results section. Provide explanation below. Use and attach additional pages if necessary.

  For SI units: 1 inch water column = 0.249 kPa

  2025 CALIFORNIA MECHANICAL CODE 511

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  APPENDIX E

  CERTIFICATE OF ACCEPTANCE MECH-9A	Col2
  Supply Water Temperature Reset Controls Acceptance (Page 1 of 2)	Supply Water Temperature Reset Controls Acceptance (Page 1 of 2)
  Project Name/Address:	Project Name/Address:
  System Name or Identification/Tag:	System Location or Area Served:

  Enforcement Agency:	Permit Number:
  Note: Submit one Certificate of Acceptance for each system that must demonstrate compliance.	Enforcement Agency Use: Checked by/Date

  FIELD TECHNICIAN’S DECLARATION STATEMENT

  • I certify under penalty of perjury the information provided on this form is true and correct.

  • I am the person who performed the acceptance requirements verification reported on this Certificate of Acceptance (Field Technician).

• CWUIC § 0.249 Medium relevance — show source text

  24
  |0.249
  |0.048
  |–
  | |4.94|0.326|0.063|–| |5.65|0.413|0.080|–| |6.36|0.507|0.098|–| |7.06|0.611|0.118|0.030| |7.77|0.723|0.139|0.035| |8.47|0.843|0.162|0.041| |9.18|0.969|0.187|0.047| |9.89|1.108|0.212|0.053| |10.59|1.252|0.240|0.060| |12.36|1.647|0.315|0.079| |14.12
  |2.090
  |0.398
  |0.100
  | |15.89
  |2.580
  |0.490
  |0.123
  | |17.66|3.116|0.591|0.148| |19.42|–|0.701|0.176| |21.19|–|0.818|0.205| |22.95|–|0.944|0.236| |24.72|–|1.078|0.268| |28.25|–|1.369|0.341| |31.78|–|1.690|0.421| |35.31|–|2.043|0.509| |38.84|–|2.425|0.603| |42.37|–|2.838|0.705| |45.90
  |–
  |3.280
  |0.814
  | |49.43|–|3.751|0.929| |52.97|–|4.249|1.052| |56.50|–|–|1.181| |60.03|–|–|1.318| |63.56|–|–|1.461| |67.09|–|–|1.611| |70.62|–|–|1.768| |81.21|–|–|2.276| |88.28|–|–|2.647| |95.34|–|–|3.044|

  FLOW RATE (SCFM)1	PRESSURE DROP (psi) PER 100 FEET2	Col3	Col4
  FLOW RATE (SCFM)1	1⁄2 INCH PIPE	3⁄4 INCH PIPE	1 INCH PIPE
  5.30	0.126	0.024	–
  10.59	0.430	0.082	–
  15.89	0.886	0.168	–
  21.19	1.485	0.281	–
  26.48	2.220	0.419	–
  31.78	3.089	0.581	–
  37.08	4.087	0.766	–
  42.37	–	0.975	–
  47.67	–	1.206	–
  52.97	–	1.460	0.361
  58.26	–	1.736	0.429
  63.56	–	2.033	0.502
  68.85	–	2.

• CWUIC § 404.5 Medium relevance — show source text

  404.5 Adequate water supply. Fire-flow requirements shall be determined in accordance with Appendix B or BB of the California Fire Code, as applicable.

  404.6 Reserved.

  404.7 Obstructions. Access to water sources required by this code shall be unobstructed at all times. The fire department shall not be deterred or hindered from gaining immediate access to water source equipment, fire protection equipment or hydrants.

  404.8 Identification. Water sources, draft sites, hydrants and fire protection equipment and hydrants shall be clearly identified in a manner approved by the code official to identify location and to prevent obstruction by parking and other obstructions. Each fire hydrant and access to a water supply shall be identified in accordance with one of the following: 1. Where located along a driveway, a reflectorized blue marker with a minimum dimension of 3 inches (73 mm) shall be located on the driveway address sign and mounted on a fire-retardant post. 2. Where located along an access road: 2.2. A reflectorized blue marker with a minimum dimension of 3 inches (73 mm) shall be mounted on a fire-retardant post. The signpost shall be within 3 feet (914 mm) of said fire hydrant with the sign not less than 3 feet (914 mm) nor greater than 5 feet (1524 mm) above ground, in a horizontal position and visible from the driveway. 2.3. As specified in the State Fire Marshal’s Guidelines for Fire Hydrant Markings Along State Highways and Freeways, May 1988.

  404.9 Testing and maintenance. Water sources, draft sites, hydrants and other fire protection equipment required by this code shall be subject to periodic tests as required by the code official. Such equipment installed under the provisions of this code shall be maintained in an operative condition at all times and shall be repaired or replaced where defective. Additions, repairs, alterations and servicing of such fire protection equipment and resources shall be in accordance with approved standards.

  404.10 Reliability. Water supply reliability shall comply with Sections 404.10.1 through 404.10.3.

  404.10.1 Objective. The objective of this section is to increase the reliability of water supplies by reducing the exposure of vegetative fuels to electrically powered systems.

  404.10.2 Clearance of fuel. Defensible space shall be provided around water tank structures, water supply pumps and pump houses in accordance with Section 603.

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  WILDLAND-URBAN INTERFACE AREA REQUIREMENTS

  404.10.3 Standby power. Standby power shall be provided to pumps, controllers and related electrical equipment so that stationary water supply facilities within the wildland-urban interface area that are dependent on electrical power can provide the required water supply. The standby power system shall be in accordance with Section 2702 of the California Building Code and Section 1203 of the California Fire Code . The standby power source shall be capable of providing power for not less than 2 hours.

• CWUIC § 1275.01 Medium relevance — show source text

  1275.01 Application. The provisions of this article shall apply in the tentative and parcel map process when new parcels are approved by the Local Jurisdiction.

  APPENDIX H-14 2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE

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  APPENDIX H—REFERENCED CALIFORNIA DOCUMENTS

  1275.02 Water supply. (a) When a water supply for structure defense is required to be installed, such protection shall be installed and made serviceable prior to and during the time of construction except when alternative methods of protection are provided and approved by the Local Jurisdiction.

  (b) Water systems equaling or exceeding the California Fire Code, California Code of Regulations title 24, part 9, or, where a munic- ipal-type water supply is unavailable, National Fire Protection Association (NFPA) 1142, “Standard on Water Supplies for Suburban and Rural Fire Fighting,” 2017 Edition, hereby incorporated by reference, shall be accepted as meeting the require- ments of this article.

  (c) Such emergency water may be provided in a fire agency mobile water tender, or naturally occurring or man made containment structure, as long as the specified quantity is immediately available. (d) Nothing in this article prohibits the combined storage of emergency Wildfire and structural firefighting water supplies unless so prohibited by local ordinance or specified by the local fire agency. (e) Where freeze or crash protection is required by Local Jurisdictions, such protection measures shall be provided.

  1275.03 Hydrants and fire valves. (a) The hydrant or fire valve shall be eighteen (18) inches above the finished surface. Its location in relation to the road or driveway and to the building(s) or structure(s) it serves shall comply with California Fire Code, California Code of Regulations title 24, part 9, Chapter 5, and Appendix C. (b) The hydrant head shall be a two and half (2 [1] / 2 ) inch National Hose male thread with cap for pressure and gravity flow systems and four and a half (4 [1] / 2 ) inch for draft systems. (c) Hydrants shall be wet or dry barrel and have suitable freeze or crash protection as required by the local jurisdiction.

  1275.04 Signing of water sources. (a) Each hydrant, fire valve, or access to water shall be identified as follows: (1) if located along a driveway, a reflectorized blue marker, with a minimum dimension of three (3) inches shall be located on the driveway address sign and mounted on a fire retardant post, or (2) if located along a road, (i) a reflectorized blue marker, with a minimum dimension of three (3) inches, shall be mounted on a fire retardant post. The sign post shall be within three (3) feet of said hydrant or fire valve, with the sign no less than three (3) feet nor greater than five (5) feet above ground, in a horizontal position and visible from the driveway, or (ii) as specified in the State Fire Marshal's Guidelines for Fire Hydrant Markings Along State Highways and Freeways, May 1988.

  Article 5 Building Siting, Setbacks, and Fuel Modification

• CWUIC § 17742.5 Medium relevance — show source text

  SECTION CC104—CONSIDERATION OF EXISTING FIRE HYDRANTS

  CC104.1 Existing fire hydrants on public streets are allowed to be considered as available. Existing fire hydrants on adjacent properties shall not be considered available unless fire apparatus access roads extend between properties and easements are established to prevent obstruction of such roads.

  SECTION CC105—DISTRIBUTION OF FIRE HYDRANTS

  CC105.1 The average spacing between fire hydrants shall not exceed that listed in Table CC105.1.

  Exception: A deficiency of up to 10 percent shall not be allowed when existing fire hydrants provide all, or a portion, of the required fire hydrant service.

  Regardless of the average spacing, fire hydrants shall be located such that all points on streets and access roads adjacent to a build- ing are within the distances listed in Table CC105.1.

  CC105.2 When public or private water mains are not available to supply fire flow [not within 1,000 feet (304 800 mm) of the proposed building], the following alternatives shall be used: 1. Building(s) shall be protected by an automatic sprinkler system Exception: Portable (relocatable) buildings, as defined in California Education Code Section 17742.5(e), which requires that portable buildings be designed and constructed to be relocatable over public streets, shall be designed and constructed for relocation without the separation of the roof or floor from the building and when measured at the most exterior walls, shall have a floor area not in excess of 2,000 square feet (186 m [2] ). Such portable buildings shall be separated from other structures in groupings not to exceed 9,100 square feet (845 m [2] ) in building area (pursuant to Table 503, California Building Code, for Type V- B buildings). Further area increases shall be as approved by the local fire authority having jurisdiction and the state fire marshal.

  The water for sprinklers may be supplied by the domestic system, a pressure tank, a gravity tank or other means in accordance with NPFA 13. Water tanks shall be installed in accordance with NFPA 22. (See the California Building Code, Chapter 9.) 2. When the adequate fire flow is not available and the water for sprinklers is provided from a source other than a public water supply, the amount of water to supply the system shall be calculated using the area/density method or the room design method as delineated in NFPA 13. The calculated duration of water flow to sprinklers shall not be less than 15 minutes to 10 heads.

  3. The sprinkler system shall have a water flow alarm monitored by an approved central, proprietary or remote station service or a local alarm which will give audible and visual signals at a constant attended location. 4. When this alternative is utilized and the calculated water duration to a sprinkler is less than NFPA 13 recommendations, the area increases and fire resistive substitutions allowed in Chapter 5 of the California Building Code shall not be permitted.

  2025 CALIFORNIA FIRE CODE APPENDIX CC-3

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  APPENDIX CC—FIRE HYDRANT LOCATIONS AND DISTRIBUTION

• CWUIC § 4-1 Medium relevance — show source text

  2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE 4-1

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  4 WILDLAND-URBAN INTERFACE AREA REQUIREMENTS

  User notes:

  About this chapter: Chapter 4 provides requirements that apply to all occupancies in the wildland-urban interface and pertain to all of the following:

  1. Fire service access to the property that is to be protected, including fire apparatus access roads and off-road driveways.

  2. Premises identification.

  3. Key boxes to provide ready access to properties secured by gated roadways or other impediments to rapid fire service access.

  4. Fire protection water supplies, including adequate water sources, pumper apparatus drafting sites, fire hydrant systems and system reliability.

  5. Fire department access to equipment such as fire suppression equipment and fire hydrants.

  SECTION 401—GENERAL

  401.1 Scope. Wildland-urban interface areas shall be provided with emergency vehicle access and water supply in accordance with this chapter.

  401.2 Objective. The objective of this chapter is to establish the minimum requirements for emergency vehicle access and water supply for buildings and structures located in the wildland-urban interface areas.

  401.3 General safety precautions. General safety precautions shall be in accordance with this chapter. See also Appendix A.

  SECTION 402—APPLICABILITY

  402.1 Subdivisions. Subdivisions shall comply with Sections 402.1.1 and 402.1.2.

  402.1.1 Access. New subdivisions, as determined by this jurisdiction, shall be provided with fire apparatus access roads in accordance with the California Fire Code; the California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Article 2; and access requirements in accordance with Section 403.

  402.1.2 Water supply. New subdivisions as determined by this jurisdiction shall be provided with water supply in accordance with Section 507 of the California Fire Code; California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Article 4; and Section 404.

  402.1.2.1 Parcel map approval. Water supply requirements shall apply in the tentative and parcel map process when new parcels are approved by the local jurisdiction.

  402.2 Individual structures. Individual structures shall comply with Sections 402.2.1 and 402.2.2.

  402.2.1 Access. Individual structures hereafter constructed or relocated into or within wildland-urban interface areas shall be provided with fire apparatus access in accordance with the California Fire Code; the California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Subsection 1273; and Section 403 .

  402.2.2 Water supply. Individual structures hereafter constructed or relocated into or within wildland-urban interface areas shall be provided with a conforming water supply in accordance with the California Code of Regulations, Title 14, Division 1.5, Chapter 7, Subchapter 2, Article 4; California Fire Code Section 507; and Section 404.

• CWUIC § 404.9 Medium relevance — show source text

  May_ 1988.

  404.9 Testing and maintenance. Water sources, draft sites, hydrants and other fire protection equipment required by this code shall be subject to periodic tests as required by the code official. Such equipment installed under the provisions of this code shall be maintained in an operative condition at all times and shall be repaired or replaced where defective. Additions, repairs, alterations and servicing of such fire protection equipment and resources shall be in accordance with approved standards.

  404.10 Reliability. Water supply reliability shall comply with Sections 404.10.1 through 404.10.3.

  404.10.1 Objective. The objective of this section is to increase the reliability of water supplies by reducing the exposure of vegetative fuels to electrically powered systems.

  404.10.2 Clearance of fuel. Defensible space shall be provided around water tank structures, water supply pumps and pump houses in accordance with Section 603.

  2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE 4-7

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  WILDLAND-URBAN INTERFACE AREA REQUIREMENTS

  404.10.3 Standby power. Standby power shall be provided to pumps, controllers and related electrical equipment so that stationary water supply facilities within the wildland-urban interface area that are dependent on electrical power can provide the required water supply. The standby power system shall be in accordance with Section 2702 of the California Building Code and Section 1203 of the California Fire Code . The standby power source shall be capable of providing power for not less than 2 hours.

  Exceptions:

  1. Where approved by the code official, a standby power supply is not required where the primary power service to the stationary water supply facility is underground.
  2. A standby power supply is not required where the stationary water supply facility serves not more than one singlefamily dwelling.

  �

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  CALIFORNIA WILDLAND-URBAN INTERFACE CODE – MATRIX ADOPTION TABLE

  CHAPTER 5 – SPECIAL BUILDING CONSTRUCTION REGULATIONS

  (Matrix Adoption Tables are nonregulatory, intended only as an aid to the code user. See Chapter 1 for state agency authority and building applications.)

• CWUIC § 504.7.3.3 Medium relevance — show source text

  504.7.3.3 Performance requirements for Section 504.7.3.2, Item 1. Materials shall be tested in accordance with both ASTM E2632 and ASTM E2726 and comply with the conditions of acceptance in Sections 504.7.3.3.1 and 504.7.3.3.2. The material shall also be tested in accordance with ASTM E84 or UL 723 and comply with the performance requirements of Section 503.2.4.

  504.7.3.3.1 Conditions of acceptance for ASTM E2632. The ASTM E2632 test shall be conducted on a minimum of three test specimens and meet the conditions of acceptance in Items 1 through 3. If any one of the three tests does not meet the conditions of acceptance, three additional tests shall be performed. All three additional tests must meet the conditions of acceptance. 1. Peak heat release rate of less than or equal to 25 kW/ft2 (269 kW/m2).

  2025 CALIFORNIA WILDLAND-URBAN INTERFACE CODE 5-7

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  �

  �

  SPECIAL BUILDING CONSTRUCTION REGULATIONS

  2. Absence of sustained flaming or glowing combustion of any kind at the conclusion of the 40-minute observation period. 3. Absence of falling particles that are still burning when reaching the burner or floor.

  504.7.3.3.2 Conditions of acceptance for ASTM E2726. The ASTM E2726 test shall be conducted, using a “Class A” size roof test brand, on a minimum of three test specimens and meet the conditions of acceptance in Items 1 and 2. If any one of the three tests does not meet the conditions of acceptance, three additional tests shall be performed. All three additional tests must meet the conditions of acceptance. 1. Absence of sustained flaming or glowing combustion of any kind at the conclusion of the 40-minute observation period. 2. Absence of falling particles that are still burning when reaching the burner or floor.

  504.7.3.4 Performance requirements for Section 504.7.3.2, Item 7. The ASTM E2632 test shall be conducted on a minimum of three test specimens and the peak heat release rate shall be less than or equal to 25 kW/ft [2] (269 kW/m [2] ). If any one of the three tests does not meet the conditions of acceptance, three additional tests shall be run. All the additional tests shall meet the condi- tion of acceptance. If any one of the three tests does not meet the condition of acceptance, three additional tests shall be performed. All three additional tests must show a peak heat release rate shall be 25 kW/ft2 (269 kW/m2) or less.

  504.8 Exterior glazing. Exterior windows, window walls and glazed doors, windows within exterior doors, and skylights shall be constructed of any of the following: 1. Multilayered glazed panels with at least one pane of tempered glass complying with Section 2406 of the California Building Code.

  2. Glass block.

• CWUIC § 1274.04 Medium relevance — show source text

  or otherwise posted to provide for unobstructed visibility from that_ intersection.

  (f) In all cases, the address shall be posted at the beginning of construction and shall be maintained thereafter.

  [CCR, Title 14 §1274.04]

  SECTION 404—WATER SUPPLY

  404.1 General. An approved water source shall have an adequate water supply for the use of the fire protection service to protect buildings and structures from exterior fire sources or to suppress structure fires within the wildland-urban interface area of the jurisdiction in accordance with this section.

  404.2 Required water supply. An approved water supply capable of supplying the required fire flow for structural fire protection and wildland fire exposure shall be provided to the premises on which facilities, buildings or portions of buildings are hereafter constructed or moved into or within the jurisdiction in accordance with Section 507 of the California Fire Code.

  404.3 Draft sites. Approved draft sites shall be provided at natural water sources intended for use as fire protection for compliance with this code. The design, construction, location, access and access maintenance of draft sites shall be approved by the code official.

  404.3.1 Access. The draft site shall have emergency vehicle access from an access road in accordance with Section 403.

  404.3.2 Pumper access points. The pumper access point shall be either an emergency vehicle access area alongside a conforming access road or an approved driveway not longer than 150 feet (45 720 mm). Pumper access points and access driveways shall be designed and constructed in accordance with all codes and ordinances enforced by this jurisdiction. Pumper access points shall not require the pumper apparatus to obstruct a road or driveway.

  404.4 Hydrants. Hydrants shall be designed and constructed in accordance with nationally recognized standards. The location and access shall be approved by the code official. The number and spacing of fire hydrants shall be in accordance with Appendix C or CC of the California Fire Code, as applicable.

  404.5 Adequate water supply. Fire-flow requirements shall be determined in accordance with Appendix B or BB of the California Fire Code, as applicable.

  404.6 Reserved.

  404.7 Obstructions. Access to water sources required by this code shall be unobstructed at all times. The fire department shall not be deterred or hindered from gaining immediate access to water source equipment, fire protection equipment or hydrants.

  404.8 Identification. Water sources, draft sites, hydrants and fire protection equipment and hydrants shall be clearly identified in a manner approved by the code official to identify location and to prevent obstruction by parking and other obstructions. Each fire hydrant and access to a water supply shall be identified in accordance with one of the following: 1. Where located along a driveway, a reflectorized blue marker with a minimum dimension of 3 inches (73 mm) shall be located on the driveway address sign and mounted on a fire-retardant post. 2. Where located along an access road: 2.2. A reflectorized blue marker with a minimum dimension of 3 inches (73 mm) shall be mounted on a fire-retardant post. The signpost shall be within 3 feet (914 mm) of said fire hydrant with the sign not less than 3 feet (914 mm) nor greater than 5 feet (1524 mm) above ground, in a horizontal position and visible from the driveway. _2.3.