(23)AGRMT 020607 Houston & Harris PCS, Inc. - executed agreement

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2.2.2 Sewer Flushing Machines: Shall have a minimum of 2500 pounds per square inch (p.s.i.) operating pressure and 100 gallons per minute (gpm) flow rate. The equipment must also have its own water tank capable of storing a minimum of 1,000 gallons of water. 2.2.3 Vacuum Operated Cleaning Machines: Shall be of the heavy duty type for extra heavy material and capable of cleaning sewer pipe sections up to 700 feet in length. The machine shall be capable of moving types of debris described in these specifications. 2.2.4 High Velocity Jet Machines: High velocity sewer cleaning equipment shall be constructed for ease and safety of operation with a minimum of 2,500 p.s.i. operating pressure, and 700 feet of hose. The equipment shall also have a selection of two or more high velocity nozzles. The nozzles shall be capable of producing a scouring action from 15 to 45 degrees in all size lines designated to be cleaned. Equipment shall also include a high velocity gun for washing and scouring manhole walls and floors. The gun shall be capable of producing flows from a fine to a solid stream. The equipment shall carry its own water tank capable of storing a minimum of 1,000 gallons of water, auxiliary engines, pumps, and hydraulically driven hose reel. 2.2.5 Manual Cleaning Method: Manual cleaning may include, but is not limited to, the use of buckets and shovels to remove debris from the sewer. The Successful Contractor will be allowed to manually clean the sewer provided that: 2.2.5.1 Sewer cleaning personnel are properly trained and certified in confined and hazardous space requirements in accordance with NIOSH and OSHA rules and regulations. 2.2.5.2 Normal flow conditions allow manual cleaning to be conducted safely and effectively. 2.2.6 Off -Site Debris Removal and Transportation Equipment: Shall be of a type capable of removing debris in a safe and efficient manner consistent with all local, state and federal rules and regulations governing the transportation and disposal of such debris. Trucks shall have a minimum capacity of 10 cubic yards (yd3). Trucks shall be either closed body types or have a suitable tarp covering to prevent debris dislodgment during transportation. 2.2.7 The Contractor will be held responsible for any and all damages or sewage discharges caused by the use of sewer cleaning equipment. 2.2.8 Sewage Flow Control: It is not the intent of these specifications to require that the Contractor engage in pumping and bypassing of sewage flow. It is fully expected that the work will be conducted under prevailing flow conditions. However, in the event of unforeseen conditions which may require the Contractor to conduct pumping and bypassing or temporary blockage of the sewage flow, the contractor is required to engage in such activities in accordance with the following requirements: RVPUB\NGS\529338 14