AO issued for violation of TTHM/HAA5 MCL under Stage 2 DBPR, 40 CFR Part 141, Subpart V. AO requires installation of trihalomethane reduction system (TRS) by October 1, 2016. Injunctive relief includes cost of installation of TRS. Cost of design is included in IR for AO Docket No. SDWA-02-2016-8058.