AgdaPkt 2016-04-25 Closed and Joint SA PFA

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6.1.C. - Page 10 than one foot per second in the line.While the cleaning nozzle is pulled back,the vacuum system shall be used to simultaneously remove debris flushed by the cleaning nozzle. CONTRACTOR shall use a root cutting nozzle to remove all debris. The root cutting nozzle shall revolve 360 degrees,be capable of cleaning at 6"-48"lines,and operate at 80 gallons per minute at a pressure of 3,000 pounds per square inch.Dislodged roots shall be captured and removed from the line either by the vacuum or a basket. The CONTRACTOR shall remove all sludge,dirt, sand,rocks,roots,grease and other solid or semisolid material resulting from the cleaning operation at the downstream manhole of the section being cleaned. Procedure for removing roots may include the use of mechanical equipment such as rodding machines and bucket machines using root cutters and porcupines. Passing material from manhole section to manhole section which could cause line stoppages, accumulations of sand in wet wells, or damage pumping equipment, shall not be permitted. Chemical root treatment shall not be used by the CONTRACTOR. Although hazardous materials are not expected, the CONTRACTOR shall contact the City, if such materials are found. The CONTRACTOR is responsible for proper removal and disposal of any found hazardous materials. The CONTRACTOR shall dispose all solids or semisolids resulting from the cleaning operations from the site at a suitably sanitary landfill site as defined by the Titles 22 and 23 of the California Administrative Code.Under no circumstances will the CONTRACTOR will be allowed to accumulate debris on the site. The Contractor will be allowed to store a debris container in the City Public Works Services Department corporation yard.The removal and disposal of solids shall be included in the agreed cost. If the CONTRACTOR encounters a surcharging manhole(flow exceeds the diameter of the sewer pipe), the CONTRACTOR shall immediately notify the City Public Works Services Department at (650-780- 7464)and provide information on the cause of the blockage. The CONTRACTOR shall prevent contract operations from causing a stoppage or overflow. In the event of a stoppage or overflow,the CONTRACTOR shall immediately notify the City Public Works Services Department at(650-780-7464).The CONTRACTOR shall remove the stoppage and contain and mitigate the overflow. Overflows shall be mitigated to the City's standards including property damage overflows that shall require cleaning and restoration. All costs for damages occasioned by the overflow are the responsibility of the CONTRACTOR. All water used in conjunction with the cleaning operations shall be metered and paid for by the Contractor. 1. Contractor shall pay an$800 deposit to Cash Collections at City Hall, 1017 Middlefield Road for the construction meter. Monthly service charge will be assessed at the current commercial rate for a 3"meter which is $427.32, in addition to the actual water usage. The receipt of payment shall be taken to the City's Public Works Services Department, 1400 Broadway, Redwood City, to pick up the water meter. Prior to final inspection,return meter to Public Works Services Department, who will read the meter and prepare billing for water usage. Lost or damaged meters will require forfeiture of deposits plus cost of meter replacement. CCTV Inspection Within 24 hours of cleaning the line, CONTRACTOR shall thoroughly inspect the sewer lines using CCTV equipment and WinCan version 8.30.0.2090 inspection software.The CCTV camera and monitor shall produce a minimum of 460 horizontal lines of resolution. The CCTV camera shall be a pan-and-tilt with rotating head capable of providing a 360-degree view of the inside of all pipes,connections,and any REV:03-16-16 VR Page 7 of 12 ATTY/AGR2016.052/Professional Pipe Services