3106B Special Requirements for Spray Grounds — 2025 California Building Code

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

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.

water features that extend above the ground must be clearly visible.

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.

shall be electrically interconnected so that when 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 treatment 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.

of all the spray ground pumps and the recirculation pump combined, whichever is higher.

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 portion of the surge basin and on the opposite side from the suction intake for the spray ground pump.

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 automatic make up water fill device through an air gap or be protected 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 supplement disinfection methods required in this chapter unless another treat- ment process is provided that has been determined 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 disinfec- tion 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.

feature pump if the ultraviolet dosage rate drops below 40 mJ/cm [2] .

lighting so that all portions of the spray pad 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 Electrical Code.

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.