12 - Laserfiche WebLink

In addition, new housing that could be developed under the Housing Element is expected to result in lower per capita demand for water supply than existing housing, as summarized below: • On a per household basis, multifamily homes typically require half as much water outdoors as do single - family homes, and of the 2,067 unit - capacity required by RHNA, approximately 76% would be expected to be multi - family units. • New residential units built in the City are anticipated to be more water efficient than existing units due to the implementation of current requirements related to the installation of drought - tolerant landscaping and water - efficient appliances and fixtures. Therefore, new housing - related growth in the City (under the GMO the City may issue building permits only for 235 units on an annual basis) would not be expected to substantially compromise existing water supplies. Furthermore, after approval of the Recycled Water Feasibility Study in November 2013, the City is moving forward with implementation of a recycled water program. This recycled water program will reduce the demand for potable water within Zone 7 and assist in creating a more reliable water supply, since the recycled water would be generated and consumed locally. The City will continue to explore opportunities for recycled water to reduce its reliance on an imported supply. However, the City also possesses the flexibility to institute more stringent measures to reduce water demand in the event of a prolonged drought, pursuant to a 2009 Water Shortage Contingency Plan developed by the water retailers who purchase water from Zone 7 (including the cities of Pleasanton and Livermore, Dublin -San Ramon Services District, and California Water Service Company- Livermore District). The Water Shortage Contingency Plan identifies a series of water conservation measures that could be implemented by each of the water retailers at different drought declarations. At a Stage 3 or 4 drought declaration, the plan allows water retailers to refuse new or additional service requests for residential, commercial, industrial, and institutional projects comprising more than 500 dwelling units (or an equivalent square footage of commercial or industrial uses). Sewer Public concern has also been raised about the ability of the City's sanitary sewer infrastructure to accommodate new housing growth, particularly if such growth is focused in one area of the City. The City of Pleasanton owns and maintains the pipelines, manholes, force mains, pump stations, and siphons in the local sewer collection system within the City's limits. Most of the City's existing collection system is in satisfactory condition and operates in accordance with acceptable industry standards for conveyance of average dry weather flows, peak hourly dry weather flows, and peak wet weather flows. If all of the housing sites within the current Housing Sites Inventory are developed, additional expansions to the local sewer collection system may be warranted. Such improvements would include a new pump station and associated pipelines. In anticipation of future growth, the City is designing a future pump Case No. P14 -0440, City of Pleasanton Planning Commission Page 10 of 12