Specifications include, but are not limited to: 5.1 The Contractor shall perform visual inspections, at no additional cost to the City, on all structures accessed during the cleaning process. 5.1.1 The Contractor shall notify the authorized representative of the WCD, SMD or AVN of any structures with excessive deterioration or corrosion. 5.2 Cleaning/debris removal shall start at the upstream end and progress to the downstream end of the system. 5.2.1 Deviations from this procedure may be necessary and approval from the authorized representative of the WCD, SMD or AVN must be obtained prior to implementation. 5.3 The sanitary sewer and storm drain system shall be cleaned by removing dirt, grease, rock, sand, and all other harmful or obstructive material from the lines, manholes, and/or other structures. 5.3.1 Solids shall be removed by hydrojetting and suction, pumping, or mechanical means including rodding, and/ or a physical means using a confined space entry. 5.4 The cleaning/debris removal process shall be accomplished while the sanitary sewer or storm drain system is flowing. 5.4.1 Bypass pumping is not permitted. 5.4.2 Suitable traps or weirs shall be used to minimize the movement of solids to adjacent sections of sewer. 5.5 The Contractor shall clean the sanitary sewers or storm drains using a City approved method that demonstrates at least 90% of the pipeline is free of solids, sediment, and debris. 5.6 All necessary precautions must be taken to protect the lines from damage and to ensure that flooding/spills, which may result in the contamination of private or public property, do not occur because of the cleaning/debris removal process. 5.6.1 Damage to the lines, manholes/structures, or flooding of private or public property which occurs because of the cleaning/debris removal process shall be the responsibility of the Contractor.