"Maximum residual disinfectant level" or "MRDL" means a level of a disinfectant added for water treatment that may not be exceeded at the consumer's tap.
Cal. Code Regs. Tit. 22, § 64400.67
"Maximum residual disinfectant level" or "MRDL" means a level of a disinfectant added for water treatment that may not be exceeded at the consumer's tap.
Cal. Code Regs. Tit. 22, § 64400.67