- (a) Contaminants that have a treatment technique requirement instead of an MCL requirement include Giardia lamblia, viruses, heterotrophic plate count bacteria, Legionella, Cryptosporidium, and turbidity, as set out in 40 C.F.R. 141.71 -141.74, 141.130 - 141.135, 141.170 - 141.175, 141.400 - 141.405, 141.500 - 141.571, 141.700 - 141.723, and 141.851 - 141.861, all adopted by reference in 18 AAC 80.010(a), except that for turbidity, a water system seeking approval or approved to avoid filtration while using a surface water or a GWUDISW source may be subject to the MCL requirements for turbidity set out in 18 AAC 80.300.
- (b) Contaminants that have an action level requirement instead of an MCL requirement include lead and copper, as set out in 40 C.F.R. 141.80, adopted by reference in 18 AAC 80.010(a).
(Eff. 5/3/2019, Register 230)
Authority: AS 46.03.020, AS 46.03.050, AS 46.03.710, AS 46.03.720