23 ATTACHMENT 2 - Laserfiche WebLink

Draft 14. Subregional Planning Element drains the Tri Vallev in a southerly direction to San Francisco Bav via Niles Canvon and Alameda Creek. • _ , The Tri-Valley area does not contain a~natural lakes ~ .: both the Del Valle and San Antonio reservoirs are human made as are the former sand-and-gravel nits comnrising Shadow Cliffs and the Chain of Lake. Alameda County developed the "Chain-of-Lakes" concept in the 1970s. Zone 7 plans to establish the Chain of Lakes for flood control sediment diversion and recreation. The Chain of bakes are located between the cities of Livermore and Pleasanton and, when complete, will consist of a series of abandoned sand-and-gravel quarry pits converted into nine lakes linked in a series plus Cope Lake. Thus far Zone 7 has established four of these lakes which all contribute to groundwater recharge plus Cope Lake, which does not contribute. The remainder of these lakes will be available in the next 10 to 30 years after they have been mined and reclaimed. For additional discussion of the Chain of Lakes,, see Stormwater and Water Resources in the Water Element and see Sand and Gravel Water Management and Recreation, and Soil Resources in the Conservation and Open Space Element. t~ With implementation of its Stream Management Master Plan, Zone 7 would mitigate subregional flooding with the Chain of Lakes and would reduce streambed sSiltation e€-tl:e-arreye~and erosion with projects on several areas of local aYYOyOS Solid Waste The solid waste management system in Alameda County includes the collecting processing and disposing of solid waste materials. Alameda County adopted the /Ilameda Cauuty Integrated Waste Management Plans with a goal to reduce solid waste throughout the county, including within the Tri- Valley area. s Alameda County Waste Management Authority, Alameda County Integrated Waste Management Plan, Adopted Febmaxy 26, 2003. Subregional Planning 060507, redline 1E1114-9 City Council 6/5/2007