AgdaPkt 2004-09-27 - Laserfiche WebLink

Browse Search

��4 �5 City of Redwood City Recycled Water Task Force Report Marc6 3, 2004 Although life cycle costs for synthetic turf are higher than those for natwal turf, on a per-hour- of-use basis, synthetic turf is more cost effective. The City Pazks and Recreation Department estimates the 10-year life cycle cost for a 4-acre playing field is $295,000 per yeaz for synthetic turf and $166,000 per year for natural turf. However, on a per-hour-of-use basis, these same life cycle costs are $59 per hour of play for synthetic turf and $121 per hour of play for natural turf (based on the usage assumptions in the previous paragraph). Information provided by City staff regarding natural and synthetic turf construction, maintenance, and life cycle costs is provided in Attachment 3. Turf Type 10-Year Life Cycle 10-Year Life Cycle Costs $/ ear Costs S/hr of la Natural 166,000 121 S nthetic 295,000 59 Manufacturers of synthetic turf predict a 15-year lifespan for their products; thus, the actual life cycle costs for synthetic turf may be less than those estimated above. The City Parks and Recreation Department strongly supports replacing natural turf on playing fields with synthetic turf. � 3.1.3. Existing Groundwater Use In the course of its investigations, the Task Force learned that a portion of Sequoia High School is irrigated with groundwater from an existing well. However, the Market Assessment assumed that this portion of Sequoia High School was irrigated with potable water and estimated this amount of water to be 71 AF/Y. Altemative E, which is based on the Market Assessment, included Sequoia High School among the customers to be served recycled water. Thus, the 1,946 AF/Y of estimated reduced potable water demand provided by Alternative E included 71 AF/Y from this portion of Sequoia High School. This 71 AF/Y is also included in the 290 AF/Y removed from Alternative E when schoolyards, parks, and playgrounds are removed from the list of recycled water customers. In order to make Alternative TF comparable to Alternative E, this 71 AF/Y must also be included as reduced potable water demand under Alternative TF. Part of the portion of Sequoia High School at issue has been converted to synthetic turf. Accordingly, of the estimated 71 AF/Y of potable water demand amibuted to this portion of Sequoia High School, 14 AF/Y is accounted for under the synthetic turf category of Alternative TF (see Table 1). The remaining 57 AF/Y is included in this existing groundwater use category. 3.1.4. Additional Water Conservation The City has several existing water conservation programs in place. The additional water conservation category consists of additional water conservation programs not included in the Urban Water Management Plan. Specifically, these are City-subsidized programs to promote ! voluntary (a) replacement of pre-rinse spray nozzles at food service providers, (b) installation of � evapotranspiration ("ET") controllers at large irrigation sites, and (c) installation of hot water � E f i . _. _ .. _� ___