“Slow sand filtration” means a process involving passage of raw water through a bed of sand at rates not to exceed 0.10 gallons per minute per square foot resulting in substantial particulate removal by physical and biological mechanisms.

Note: Authority cited: Sections 208 and 4023.3, Health and Safety Code. Reference: Sections 4010, 4010.1, 4011, 4012, 4013, 4014, 4016, 4017, 4023.1, 4023.3, 4024, 4025, 4026.4, and 4031, Health and Safety Code.

History

1. New section filed 5-6-91; operative 6-5-91 (Register 91, No. 25).