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Ordinance No. 24-XXXX Page 19 of 19 h. No oil, gasoline, chemicals, or other harmful materials shall be deposited or disposed within the dripline of the trees or in drainage channels, swales, or areas that may lead to the dripline. i. No sign, wires, or ropes shall be attached to the trees. j. No stockpiling/storage of construction materials, fill, etc., shall take place underneath or within 5-feet of the dripline of the existing trees. k. No equipment or temporary structures shall be placed within or beneath the dripline of the existing trees. Failure to comply with these requirements may result in a “stop work order”. OPERATIONS SERVICES DEPARTMENT – ENVIRONMENTAL SERVICES/UTILITIES DIVISION – 925-931-5500 77.BACKFLOW PREVENTION ASSEMBLIES: Backflow preventer assemblies shall be designed and installed in accordance with current City Standards 704, 705, 706; State Health and Safety Code; Title 17; and as required by the Director of Operations and Water Utilities. All backflow preventer assemblies shall be tested and certified by a City approved tester with the certification submitted to the City’s contractor, Aqua Backflow. Testing will be performed at the time City water is turned on to the site. If an existing backflow preventer is on the site it shall be tested and certified by an approved tester with the certification submitted to the City’s contractor, Aqua Backflow, before project water is drawn through it. An all-weather cover shall be placed over all backflow prevention assemblies 4 inch and smaller. TRAFFIC ENGINEERING DIVISION – 925-931-5677 Traffic Control 78.TRAFFIC CONTROL PLAN (TCP): A comprehensive traffic control plan shall be submitted to the City Traffic Engineer for review and approval. Best management practices to minimize traffic impacts shall be used during construction, including scheduling of major truck trips and deliveries, to avoid peak travel hours. The TCP shall have proper lane closure procedures such as flagger stations, signage, cones, and other warning devices implemented during construction. The TCP shall also include time of day/hours of lane closures and total number of days. 79.TRUCK ROUTES: The haul route for all materials to and from the project site shall be reviewed and approved by the City Traffic Engineer prior to building permit issuance and shall include the provision to monitor the street surfaces used for the haul route so that any damage and debris attributable to the haul trucks is identified and corrected at the expense of the applicant. Page 55 of 782