Section 327IAC8-2.5-18. Requirements for remaining on reduced TTHM and HAA5 monitoring based on Subpart L requirements: stage 2 disinfection byproducts requirements

   A PWS on reduced monitoring shall comply with the following:

(1) The PWS may remain on reduced monitoring after the dates identified in section 11(c) of this rule for compliance with sections 11 through 17 of this rule, this section, and sections 19 and 20 of this rule only if the PWS:

(A) qualifies for a 40/30 certification under 40 CFR 141.603, as incorporated by reference in section 10(a)(4) of this rule; or

(B) has received a very small system waiver under 40 CFR 141.604, as incorporated by reference in section 10(a)(5) of this rule.

(2) The PWS:

(A) shall meet the reduced monitoring criteria in section 14(a) of this rule; and

(B) may not change or add monitoring locations from those used for compliance monitoring under sections 1 through 9 of this rule. If the monitoring locations for a PWS differ from the monitoring locations under sections 1 through 9 of this rule, the PWS may not remain on reduced monitoring after the dates identified in section 11(c) of this rule for compliance with sections 11 through 17 of this rule, this section, and sections 19 and 20 of this rule.

(Water Pollution Control Division; 327 IAC 8-2.5-18; filed May 7, 2010, 9:30 a.m.: 20100602-IR-327080198FRA)