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Chapter 31B — PUBLIC POOLS

Section 3106B

California Building Code (Title 24, Part 2) · 2019 edition · updated 2026-09-12 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

SPECIAL REQUIREMENTS FOR SPRAY GROUNDS

3106B Spray grounds. All applicable provisions of this chap- ter shall apply to a spray ground unless specifically addressed in this section.

3106B.1 All parts of the spray ground shall be designed and constructed so that there are no safety hazards.

constructed so that there are no safety hazards.

3106B.2 Walking surface.

A minimum 4-foot wide walking surface shall extend around the perimeter of the splash zone of a spray ground.

3106B.3 The recirculation system shall be in operation at all

times that the spray ground is open for use and shall have a minimum of four turnover cycles prior to opening for proper disinfection and filtration.

3106B.4 There shall be no standing water within the splash zone.

zone.

3106B.5 Nozzles that spray from the ground level shall be

flush with the ground with openings no greater than 1 /2 inch. Spray ground water features that extend above the ground must be clearly visible.

3106B.6 The splash zone shall be sloped so that only water

from the spray ground water feature flows back to the surge basin. Areas adjacent to the splash zone shall be sloped away from the spray ground to deck drains or other surface water disposal systems.

3106B.7 All foggers and misters that produce finely atomized

mists shall be supplied directly from a potable water source and not from the surge basin.

3106B.8 When multiple pumps are used the control systems

for the spray ground water feature pump and recirculation system pump shall be electrically interconnected so that when

PUBLIC POOLS

the recirculation pump is off the spray ground water feature pump also is off.

3106B.9 The spray ground shall have a surge basin or treat-

ment tank constructed of materials which are inert, corrosion resistant, nontoxic and watertight including materials such as concrete, fiberglass, high density polyethylene, stainless steel or other materials as approved by the enforcing agent which can withstand all anticipated loadings under full and empty conditions as determined by an engineer or architect who has experience working on public pools.

3106B.10 The total volume of the surge basin shall be at least

4,000 gallons or a minimum of three times the gallons per minute flow rate of all the spray ground pumps and the recir- culation pump combined, whichever is higher.

3106B.11 The turnover time shall be one-half hour or less.

3106B.12 The suction intake for the spray ground or water

feature pump in the surge basin shall be located adjacent to the recirculation return line.

3106B.13 When separate pumps are used, the suction intake

for the recirculation pump shall be located in the lowest por- tion of the surge basin and on the opposite side from the suc- tion intake for the spray ground pump.

3106B.14 The surge basin shall be designed to have easy

access for cleaning and inspection. The basin shall have at least one ladder access and shall have at least one 3-foot by 3-foot access opening. Lids shall be locked or require a tool to open.

3106B.15 The surge basin shall be equipped with an auto-

matic make up water fill device through an air gap or be pro- tected by an approved backflow prevention device in accordance with Chapter 6 of the California Plumbing Code.

3106B.16 Ultraviolet light disinfection shall be used to sup-

plement disinfection methods required in this chapter unless another treatment process is provided that has been deter- mined by a nationally recognized testing laboratory to be capable of providing at least the equivalent level of reduction of cryptosporidium as the ultraviolet light disinfection system specified in this section. The ultraviolet light disinfection unit shall comply with the applicable requirements established by the NSF/ANSI 50-2010 performance standard effective August 2010.

3106B.17 An accurately calibrated ultraviolet light intensity

meter that has been properly filtered to restrict its sensitivity to the disinfection spectrum shall be installed in the wall of the disinfection chamber at the point of greatest water depth from the light source.

3106B.18 The ultraviolet light unit shall be located on the

recirculation system and shall be installed to provide treated water directly to the spray features.

3106B.19 The ultraviolet light disinfection system must be

equipped with an automatic shutdown system that inactivates the water feature pump if the ultraviolet dosage rate drops below 40 mJ/cm 2 .

3106B.20 Artificial lighting shall be provided at all spray

ground pads which are used at night or which do not have adequate natural lighting so that all portions of the spray pad

Copyright © 2019 ICC. ALL RIGHTS RESERVED. Accessed by Kevin Day (kevin.day@dgs.ca.gov), (California Building Standards Commission) Order Number #100735044 on Jul 24, 2019 03:54 PM (PDT) pursuant to License Agreement with ICC. No further reproduction or distribution authorized. Single user only, copying and networking prohibited. ANY UNAUTHORIZED REPRODUCTION OR DISTRIBUTION IS A VIOLATION OF THE FEDERAL COPYRIGHT ACT AND THE LICENSE AGREEMENT, AND SUBJECT TO CIVIL AND CRIMINAL PENALTIES THEREUNDER.

100735044

PUBLIC POOLS

and deck may be seen easily. Lighting that may be exposed to the feature pool water shall be installed in accordance with the manufacturer’s specifications and the California Electri- cal Code.

3106B.21 A means of diverting runoff from the splash zone

shall be installed on the spray ground drainage piping before the surge basin to divert water to the storm drainage system when the spray ground is not in operation.

3106B.22 A removable and cleanable catch screen or basket

shall be installed on the spray ground drainage system before it enters the reservoir to prevent larger debris from collecting in the surge basin.

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▸Contents — California Building Code (Title 24, Part 2)
California Building Code (Title 24, Part 2)
  1. Chapter 2 — DEFINITIONS AND ABBREVIATIONS
  2. Appendix G — FLOOD-RESISTANT
  3. Appendix L — EARTHQUAKE RECORDING
  4. Appendix M — TSUNAMI-GENERATED
  5. Chapter 1 — SCOPE AND ADMINISTRATION
  6. Chapter 3 — OCCUPANCY CLASSIFICATION AND USE
  7. Chapter 4 — SPECIAL DETAILED REQUIREMENTS BASED
  8. Chapter 5 — GENERAL BUILDING HEIGHTS AND AREAS
  9. Chapter 6 — TYPES OF CONSTRUCTION
  10. Chapter 7 — FIRE AND SMOKE PROTECTION FEATURES
  11. Chapter 7A — MATERIALS AND CONSTRUCTION
  12. Chapter 8 — INTERIOR FINISHES
  13. Chapter 9 — FIRE PROTECTION AND LIFE SAFETY SYSTEMS
  14. Chapter 10 — MEANS OF EGRESS
  15. Chapter 11A — HOUSING ACCESSIBILITY
  16. Chapter 11B — ACCESSIBILITY TO PUBLIC BUILDINGS, PUBLIC ACCOMM…
  17. Chapter 12 — INTERIOR ENVIRONMENT
  18. Chapter 14 — EXTERIOR WALLS
  19. Chapter 15 — ROOF ASSEMBLIES AND ROOFTOP STRUCTURES
  20. Chapter 16 — STRUCTURAL DESIGN
  21. Chapter 16A — STRUCTURAL DESIGN
  22. Chapter 17 — SPECIAL INSPECTIONS AND TESTS
  23. Chapter 18 — SOILS AND FOUNDATIONS
  24. Chapter 19 — CONCRETE
  25. Chapter 20 — ALUMINUM
  26. Chapter 21 — MASONRY
  27. Chapter 22 — STEEL
  28. Chapter 23 — WOOD
  29. Chapter 24 — GLASS AND GLAZING
  30. Chapter 25 — GYPSUM BOARD, GYPSUM PANEL PRODUCTS AND PLASTER
  31. Chapter 26 — PLASTIC
  32. Chapter 27 — ELECTRICAL
  33. Chapter 28 — MECHANICAL SYSTEMS
  34. Chapter 30 — ELEVATORS AND CONVEYING SYSTEMS
  35. Chapter 31 — SPECIAL CONSTRUCTION
  36. ▸Chapter 31B — PUBLIC POOLS
    Overview
    1. Section 3101B
    2. Section 3102B
    3. Section 3103B
    4. Section 3104B
    5. Section 3105B
    6. Section 3106B
    7. Section 3107B
    8. Section 3108B
    9. Section 3109B
    10. Section 3110B
    11. Section 3111B
    12. Section 3112B
    13. Section 3113B
    14. Section 3114B
    15. Section 3115B
    16. Section 3116B
    17. Section 3117B
    18. Section 3118B
    19. Section 3119B
    20. Section 3120B
    21. Section 3121B
    22. Section 3122B
    23. Section 3123B
    24. Section 3124B
    25. Section 3125B
    26. Section 3126B
    27. Section 3127B
    28. Section 3128B
    29. Section 3129B
    30. Section 3130B
    31. Section 3131B
    32. Section 3132B
    33. Section 3133B
    34. Section 3134B
    35. Section 3135B
    36. Section 3136B
    37. Section 3137B
    38. Section 3138B
    39. Section 3139B
    40. Section 3140B
    41. Section 3141B
    42. Section 3142B
    43. Section 3143B
    44. Section 3144B
    45. Section 3145B
    46. Section 3146B
    47. Section 3147B
    48. Section 3148B
    49. Section 3149B
    50. Section 3150B
    51. Section 3151B
    52. Section 3152B
    53. Section 3153B
    54. Section 3154B
    55. Section 3155B
    56. Section 3156B
    57. Section 3157B
    58. Section 3158B
    59. Section 3159B
    60. Section 3160B
    61. Section 3161B
    62. Section 3162B
  37. Chapter 31C — RADIATION
  38. Chapter 31D — FOOD ESTABLISHMENTS
  39. Chapter 31F — MARINE OIL TERMINALS
  40. Chapter 32 — ENCROACHMENTS INTO THE PUBLIC RIGHT-OF-WAY
  41. Chapter 33 — SAFEGUARDS DURING CONSTRUCTION
  42. Chapter 35 — REFERENCED STANDARDS
  43. Appendix A — EMPLOYEE QUALIFICATIONS
  44. Appendix B — BOARD OF APPEALS
  45. Appendix C — GROUP U – AGRICULTURAL BUILDINGS
  46. Appendix D — FIRE DISTRICTS
  47. Appendix F — RODENTPROOFING
  48. Appendix H — SIGNS
  49. Appendix I — PATIO COVERS
  50. Appendix J — GRADING
  51. Appendix K — GROUP R-3 AND GROUP R-3.1 OCCUPANCIES
  52. Appendix N — REPLICABLE BUILDINGS
  53. Appendix O — EMERGENCY HOUSING

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