Violation 40 C.F.R. Part 141, Subpart U and V, Stage 2 Disinfectant and Disinfection Byproducts Rule (Stage 2 DBPR), for failure to monitor in accordance with approved standard monitoring plan. AO establishes a System specific study and IDSE report due date. Injunctive relief assumes cost of sampling and analysis and time of operator to develop the report.