Catskill/Delaware Filtration and UV Disinfection Facilities

FAD Section 7 - Catskill/Delaware Filtration/UV Disinfection Facilities

2007 FAD Requirements

As relief from having to produce a final design for filtration facilities for the Catskill/Delaware water supply, the 2002 FAD required the City to design and construct an ultraviolet (UV) light disinfection facility and to provide biennial updates to the preliminary filtration plant design for the Catskill/Delaware system. An enforceable construction schedule was set for the Catskill/Delaware UV facility under an Administrative Order (AO) that was signed by EPA and NYSDOH in 2007. The UV plant is required to be in full operation by October 29, 2012. The 2007 FAD requires that the City implement its program for the Catskill/Delaware UV Disinfection Facility in accordance with Section 2.6 of the City's 2006 Long-Term Watershed Protection Program. Section 7 of the 2007 FAD specifically requires the City to provide a report biennially that updates the preliminary design for filtration facilities for Catskill/Delaware water, and to construct a UV disinfection facility in accordance with the AO schedule.

Evaluation of the NYC Water System's Performance

The City has met the requirements of this FAD program. In 2007 and 2009, the City provided update reports on preliminary filtration plans and gave presentations to NYSDOH and EPA on the updates. In 2007, the City requested a two month extension to the milestone requiring that the City issue the notice to proceed for construction of the UV plant by October 31, 2007. An extension was subsequently granted by EPA. Construction of the UV plant is progressing well, with expectations that it will be in operation prior to the required completion date. NYSDOH and EPA believe that UV disinfection will be an important additional barrier in protecting the quality of NYC's water supply.