The Public Works Department provides public services related to the safe and efficient movement of traffic on the 1349 miles of County maintained roadways; engineering and surveying review of proposed land development; administration and operation of various water and waste water wholesale and retail facilities, including the Nacimiento Water Supply and Los Osos Waste Water projects; long term master water planning; franchise administration for the unincorporated areas; facility planning, design and construction management of all County building projects; maintenance and custodial services for all County occupied facilities.