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<br />If excessive infiltration occurs, a flow study could be initiated to <br />determine the possible infiltration sources. This can be accomplished <br />by monitoring the flows at individual manholes during times of high <br />groundwater levels or after heavy rains. The sections of sewer with <br />excessive infiltration can be televised to determine the nature of the <br />problem, and repairs made based upon the findings. <br /> <br />Manholes <br /> <br /> <br />Manholes should be inspected a minimum of once per year. This <br /> <br /> <br />inspection should include: <br /> <br /> <br />1) Manhole steps for corrosion and soundness. <br /> <br /> <br />2) Manhole walls for cracks or deterioration. <br /> <br /> <br />3) Manhole bottoms for accumulation of foreign objects and <br /> <br /> <br />materials. <br /> <br />Any unsatisfactory condition should be corrected without delay. <br /> <br />When working in or around manholes, it is essential to observe the <br />safety precautions outlined in Federal and state regulations that <br />apply to this type of facility. <br /> <br />2.02 <br /> <br />WATER SYSTEM <br /> <br />The water system preventive maintenance program shall include <br />periodic flushing of hydrants, annual operation of gate valves, and <br />daily inspection of pumphouse equ~pment. The property owner is <br />responsible for the maintenance of the service pipe from the curb box <br />to the house or building. <br /> <br />6 <br /> <br />~ <br />