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The existing grade shown on the plans is approximate. Modification of the pipe location or <br />differences in existing elevation shall not be cause for additional compensation. <br />In areas where direct conflicts arise between watermain and water services, with storm sewer, <br />sanitary sewer, sanitary sewer services, sewer forcemains, septic tanks, or subsoil treatment <br />systems, the following shall apply: <br />Watermain and services located near sewer forcemains: <br />A minimum of ten feet (10') of separation, measured horizontally between the outer surfaces <br />of the pipes is required. <br />If ten feet (10') of separation cannot be provided, an approved additional measure of <br />containment must be provided for either the watermain or the sewer forcemain. <br />Watermain and services located near septic tanks, or subsoil treatment systems: <br />A minimum of ten feet (10') measured horizontally between the outer surfaces of the <br />watermain, tank and subsoil treatment system is required. <br />Watermain and services located near gravity sanitary and storm sewers: <br />A minimum of ten feet (10') measured horizontally between the outer surfaces of the pipes is <br />required. <br />In locations where local conditions prevent the required separation indicated above (due to <br />the presence of rock, buildings, other significant obstructions), the watermain may be laid <br />closer to gravity sewer if one (1) of the following conditions is met: <br />The bottom of the watermain is laid at least eighteen inches (18") above the top of <br />the sewer on a separate shelf; or <br />The sewer is constructed of materials and with joints that are equivalent to <br />watermain standards of construction and is pressure tested to assure water tightness <br />prior to backfilling. <br />Watermain and services crossing gravity sanitary and storm sewers: <br />A minimum vertical separation of eighteen inches (18") must be provided between the outer <br />surfaces of the pipes, with preference that the watermain cross above the sewer, wherever <br />possible. <br />One full length of water pipe shall be located so both joints will be as far from the sewer as <br />possible. <br />Watermain above -water crossings: <br />The pipe shall be adequately supported and anchored, protected from vandalism, damage and <br />freezing, and accessible for repair or replacement. <br />Page 4 <br />