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<br />II <br />1'1 <br />In <br />I\l <br />1'1 <br />I' 1 <br />1)1 <br />1\1 <br />, ,~, <br />Ij <br />If I <br />I~ <br />I] <br />1-1 <br />,I J <br />-IJ <br />IJ <br />IJ <br />'IJ <br /> <br />400-5 <br /> <br />". <br /> <br />'shall be placea so that.. the' conneotion has' a slight vertical <br />angle with the main sewer. <br /> <br />Risers shall be Qsed to extend service connection~ to a point <br />within eight feet of the street grade. Wherever wyes are used" <br />concrete _hall be placed as a collar around the main horizontal <br />sewer and shall extend to a point six inches above the bell <br />connection. The riser pipe shall be lald aqainst the undis- <br />turbed trench' wall as shown on the datai,l sheet in the- plans. <br /> <br />All servioe stubs sh~ll projeot to the property line or to the <br />location designated on the plans, with bell. end upstream. All <br />-stubs shall be- plugged. <br /> <br />Each sanitary sewer stub shall pe marked. at the property line by <br />4" X 4'. timber six feet to eight feet in length, embedded, four <br />feet below grade. <br /> <br />It shall be the dqty of 'the, -CONTRACTOR to keep an. accurate <br />record of service connections, as to- location, depth to top of <br />riser,' type of connection provided, etc. Location shall be made <br />in re$pect t9 nearest manhole center, down-grade from the <br />service. This record shall bet.urned over to the ENGINEER at <br />the end of e~ch week. <br /> <br />403.6 Manqqles <br /> <br />'Manholes shall be constructed in accordance with Section 502.3 <br />of Roseville standard Specifications. <br /> <br />403.7 IDfjltra~ion <br /> <br />See section 404.1 of Roseville Standard Specifications. <br /> <br />404.0, 1ESTIHG <br /> <br />404.1 IDfi~trat~o~ in Sewers <br /> <br />Upon completion of the sewer construction and before any <br />services are connected, leakage tests sball be made to determine <br />the amount' of ground water infiltratlon into the sewers. ' <br />Measurements will .be made ~y means 'of 90 deqrees V-Notch weirs <br />or inflatable test balls placed 'in the lines. Measurements <br />shall be taken at - all points where, in the. opinion of the <br />ENGINEER, the' flOW of water in the sewers is' -greater than the <br />1Qaxaum allowable leakage. - , <br /> <br />The .ax.i3llum allowable rate ,of leakage shall be 100 gallons per <br />inch diameter o~ pipe per mile for 24 hours. <br /> <br />In case measurements indicate a leakage greater than the maximum <br />allowable leakaqe at the outlet of 'new construction, additional <br />measurements shall be taken and continued until all leaks are <br />located and the necessary repairs, and corrective work have <br />