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Table 2. Pipeline material types and quantities as of the end of 1997
Dover Township water-distribution system model
|
Material Type |
ID |
Year First Installed |
Year Last Installed |
Number of Pipe Segments in Model |
Length of Pipe Segments in Model (miles) |
Values of Hazen-Williams "C" Used in Model* |
| Asbestos cement | AC |
1950 |
1981 |
9,512 |
289.89 |
120 |
| Cast iron | CI |
1950 |
1975 |
78 |
2.01 |
130 |
| Copper | CP |
1950 |
1950 |
3 |
0.07 |
130 |
| Ductile iron | DI |
1950 |
1994 |
194 |
6.32 |
130 |
| Galvanized | GA |
1950 |
1962 |
45 |
1.43 |
120 |
| Plastic | PVC |
1950 |
1997 |
5,949 |
177.05 |
140 |
| Plastic | PE |
1973 |
1983 |
280 |
5.98 |
140 |
| Plastic | IPS |
1981 |
1981 |
10 |
0.15 |
140 |
| Total number of pipe segments (links) in model: 16,071 Total number of pipe junctions (nodes) in model: 14,987 Total length of pipe segments (links) in model: 2,549,719 feet 1.0 mile = 1.61 km |
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*Hazen-Williams "C" Values from Rossman (1994, Table 2.2)