Section 3135B Gas Chlorination Equipment Room
The gas chlorination equipment room shall not be located in any habitable building, above the first floor or below ground level.
Mechanical exhaust ventilation systems shall be in compliance with the California Mechanical Code.
An audible and visible chlorine detection alarm system shall be located in the room containing the gas chlorine equipment. The sensor shall be located within 6 inches (152 mm) of the floor level. The system shall continually monitor the room and shall activate when chlorine concentrations in the room exceed a Permissible Exposure Limit of 0.5 ppm. Activation of the alarm shall shut off the chlorine at the source and turn on the lights and ventilation system. The alarm system shall consist of the following:
Artificial illumination of at least 50 footcandles as measured 30 inches (750 mm) from the floor shall be provided in the room.