Laserfiche WebLink
8.B. - Page 83 <br /> 4.17 UTILITIES AND SERVICE SYSTEMS <br /> 4.17.1 Settin� <br /> 4.17.1.1 Water Service <br /> The City's local water system service area is appro�mately 14 square miles and is operated by the <br /> Redwood City Public Works Services Department—Water Services Division. Redwood City draws <br /> its water from the regional water system pipelines at 13 metered connections. The City water <br /> distribution system is comprised of 262 miles of distribution mains, 10 pump stations, 2,385 fire <br /> hydrants, and 26 pressure reducing valve stations. The City receives potable water from the Hetch- <br /> Hetchy San Francisco Public Utility Commission (SFPUC)regional water system, and recycled <br /> water from the South Bayside System Authority sub-regional wastewater treatment plant. <br /> The e�sting single-family residence uses appro�mately 71 gallons of water per day.as <br /> 4.17.1.2 Sanitary Sewer/Wastewater Treatment <br /> The City operates and maintains a sewer pipeline system comprised of 192 miles of sewer mains and <br /> 31 sewer lift stations.46 The system conveys wastewater to the South Bayside System Authority <br /> (SBSA) Wastewater Treatment Plant. After treatment,the wastewater is discharged through an <br /> outfall into the San Francisco Bay, as permitted by the San Francisco Regional Water Quality <br /> Control Board(RWQCB). <br /> The treatment plant operating capacity is 29 million gallons per day of average dry weather flow. <br /> Between June and October 2008,the average dry weather flow was 15.8 million gallons per day, or <br /> 54 percent of the treatment plant operating capacity. Even though the treatment plant currently <br /> operates well below capacity for dry weather flow,there are wet weather condition capacity issues <br /> due to rain and groundwater infiltration into the collection system. While Redwood City has wet <br /> weather condition problems,it is considered to be among the industry's average. <br /> The existing single-family residence generates approximately 60 gallons of wastewater per day.47 <br /> 4.17.1.3 Storm Drainage System <br /> The Redwood City Public Works Services Department maintains the storm drainage system which <br /> serves the project site. Stormwater in Redwood City is conveyed into creeks, lined channels, storm <br /> drainage pipes and retention basins, all of which drain directly into San Francisco Bay. <br /> 4.17.1.4 Solid Waste <br /> Solid waste and recyclable materials from Redwood City are initially transported to the South <br /> Bayside Transfer Station(SBTS),48 located in the City of San Carlos. In 2006,Redwood City <br /> diverted 61 percent of its waste from landfills through recycling and reuse. <br /> 4s Based upon meter readings for existing water usage at the project site. <br /> �A sewer lift station is used to pump sewage or wastewater uphill from a low-lying neighborhood to a collection <br /> system of pipes. <br /> 47 Based upon 85 percent of total water usage. <br /> 48 A transfer station is where recyclables and refuse are collected and sorted in preparation for processing or landfill. <br /> 1410 Valota Road Residential Project 71 Initial Study <br /> Redwood City January 2012 <br />