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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Watermains are shown as positionally accurate as possible to their geographic locations. Since the watermain is not visible, these locations are usually determined by features on the pipes - such as valves. For newer watermains, measurements may be obtained during construction.</SPAN></P><P><SPAN>Diameter, install date, and material type are three key attributes maintained for this feature.</SPAN></P><P><SPAN>If the user is working directly with the source data, they are cautioned to exclude all features wihere 'End_Date' is null. Abandoned watermains are included in data. For Cityworks and Map-it users abandoned pipes are not shown.</SPAN></P><P><SPAN>Generally, the Material2 field lists the approriate AWWA specification as follows:</SPAN></P><P><SPAN STYLE="font-size:12pt">C900 - PVC pipe that is <= 300mm in diameter</SPAN></P><P><SPAN STYLE="font-size:12pt">C901 - Polyethylene pipe that is <= 75mm in diameter</SPAN></P><P><SPAN STYLE="font-size:12pt">C903 - Polyethylene-Aluminum pipe (ie. Kitec)</SPAN></P><P><SPAN STYLE="font-size:12pt">C904 - Cross-Linked Polyethylene Pipe (PEX)</SPAN></P><P><SPAN STYLE="font-size:12pt">C905 - PVC pipe that is >= 350mm in diameter</SPAN></P><P><SPAN STYLE="font-size:12pt">C906 - Polyethylene pipe that is >= 100mm in diameter</SPAN></P><P><SPAN STYLE="font-size:12pt">C909 - PVCO pipe (molecularly oriented PVC pipe)</SPAN></P><P><SPAN STYLE="font-size:12pt">PVC-160 - PVC pipe pressure class 160</SPAN></P><P><SPAN STYLE="font-size:12pt">PVC-200 - PVC pipe pressure class 200</SPAN></P><P><SPAN /></P><P /></DIV></DIV></DIV> |