Section 18 AAC 80.305 - MCL compliance(a) The department will determine MCL compliance based on analytical results and other information compiled by the department.(b) The requirements for complying with the MCLs for inorganic chemicals are set out in 40 C.F.R. 141.23(i), adopted by reference in 18 AAC 80.010(a).(c) The requirements for complying with the MCLs for organic chemicals are set out in 40 C.F.R. 141.24(f) and (h), adopted by reference in 18 AAC 80.010(a).(d) The requirements for complying with the MCLs for disinfection byproducts are set out in 40 C.F.R. 141.133(b), adopted by reference in 18 AAC 80.010(a).(e) The requirements for complying with the MCLs for turbidity are set out in 40 C.F.R. 141.71(a)(2) and (c), 141.73(a) - (c) ( 2 ), and 141.74(a)(1), (b) ( 2 ), and (c)(1), adopted by reference in 18 AAC 80.010(a).(f) The department will determine compliance with the MCL for Escherichia coli bacteria,, set under 18 AAC 80.300(b) (4), in accordance with 40 C.F.R. 141.860, adopted by reference in 18 AAC 80.010(a). The determination includes the following as follows: (1) for each month in which monitoring for coliforms is required, compliance will be based on the results of all routine and repeat samples that the department does not invalidate under 18 AAC 80.425;(2) the department will count repeat samples toward the month in which the operator collected the routine sample that required the repeat sampling, regardless of the month in which the operator actually collected the repeat samples.(g) Compliance with an MCL for radionuclides set under 18 AAC 80.300(b) (5) is achieved if the average of the analytical results of the four most recent consecutive quarterly samples, or the analytical result of a composite sample made up of the four most recent quarterly samples, does not exceed the MCL.Eff. 10/1/99, Register 151; am 9/28/2001, Register 159; am 1/11/2004, Register 169; am 1/11/2006, Register 177; am 4/24/2009, Register 190; am 2/11/2017, Register 221, April 2017Authority:AS 46.03.020
AS 46.03.050
AS 46.03.070
AS 46.03.710
AS 46.03.720