Violation 40 C.F.R. Part 141 Subpart U, Stage 2 Disinfectant and Disinfection Byproducts Rule (Stage 2 DBPR), for failure to submit standard monitoring plan by schedule 3 due date. AO to establish an alternate compliance schedule for the City of Rensselaer to comply with the IDSE requirements of the Stage 2 DBPR. The City initially began a system specific study but changed their compliance path resulting in the need for additional time.