Laserfiche WebLink
Chapter 2.0 Introduction <br />2.1 Purpose <br />This document serves as the second amendment to the December 2007 Water <br />Facilities Work Plan prepared for the City of Casselberry by Land Design <br />Innovations, Inc. This Amendment 2 is prepared for the purpose of proposing <br />additional projects for financing through the Florida Department of Environmental <br />Protection (FDEP) State Revolving Funds (SRF) program. <br />Water treatment plant and distribution system sampling performed for the City's <br />Initial Distribution System Evaluation (IDSE, 2008-2010) compliance and for the <br />Potable Water Distribution Water Age Optimization (Reiss Engineering, 2009) <br />indicate that areas of the City's water distribution system are not in compliance <br />with maximum contaminant limits (MCLs) for EPA's Stage 2 Disinfection <br />Byproduct (DBP) Rule (80 ug/L TTHM and 60 ug/L HAA6 respectively). The City <br />in 2008 increased chlorine disinfectant levels in the system to counteract <br />significant chlorine decay coefficients associated with older, encrusted pipes in <br />its system: the City is first and foremost required to maintain positive disinfectant <br />residuals in its distribution system to protect public health. The disinfectant level <br />increase has exacerbated the Stage 2 DPB MCL compliance issue. <br />Replacement of the older distribution piping will allow the City to reduce the <br />chlorine disinfectant levels and help comply with the Stage 2 DBP MCLs. <br />The City of Casselberry has identified several key potable water distribution pipe <br />replacement projects that will improve service and qualify to its customers while <br />helping comply with ongoing maximum contaminant limit (MCL) compliance <br />issues associated with EPA's Stage 2 Disinfection Byproduct (DBP) Rule. In <br />addition to helping with MCL compliance via reduced cl-lorine disinfectant decay <br />coefficients, the proposed pipe replacement projects will conserve a significant <br />amount of water lost to leaks and breaks, reduce operational flushing <br />requirements, increase fire flow capacities and increase cross connection control. <br />The proposed project locations are provided in Appendix A. <br />2.2 Introduction <br />See base document. <br />2 <br />