Resolutions-1997-021

1. Pipe shall be ASTM D3034 with SDR 26 for 15 inch pipe and smaller. 2. Rubber ring joints shall conform to ASTM D3212 3. Minimum pipe stiffness at 5% deflection shall be 46 psi when tested in accordance with ASTM D2412. 4. Maximum diametrical deflection shall be 5% under load. 5. Rubber gasket PVC fittings, service wyes, and tees. Solvent welded connections are not acceptable. 6. All 4 inch and 6 inch services shall be SDR 23.5 or 26. E. The designer shall specify pipe material, bedding and trench width to withstand anticipated dead and live loads. Minimum pipe and bedding standards are listed in Table 8.1. <table> <tr> <th>Pipe Material</th> <th>Size</th> <th>Joint</th> <th>Minimum Strength</th> <th>Minimum Bedding</th> </tr> <tr> <td>Sanitary Sewers</td> <td></td> <td></td> <td></td> <td></td> </tr> <tr> <td>Reinforced Concrete</td> <td>12 inch & up</td> <td>See Paragraph A</td> <td>Class III, B wall</td> <td>Class B</td> </tr> <tr> <td>PVC Truss</td> <td>8 inch – 15 inch</td> <td>Gasket</td> <td>200 psi</td> <td>Crushed stone encasement</td> </tr> <tr> <td>PVC</td> <td>8 inch – 15 inch</td> <td>Gasket</td> <td>SDR 26</td> <td>Crushed stone encasement</td> </tr> <tr> <td>Ductile Iron</td> <td>8 inch & up</td> <td>Gasket, push</td> <td>Class 350</td> <td>Class B</td> </tr> <tr> <td>Sanitary Service</td> <td></td> <td></td> <td></td> <td></td> </tr> <tr> <td>PVC</td> <td>4 inch & 6 inch</td> <td>Gasket</td> <td>SDR 23.5</td> <td>Crushed stone encasement</td> </tr> <tr> <td>DIP</td> <td>4 inch & 6 inch</td> <td>Gasket</td> <td>Class 350</td> <td>Class B</td> </tr> <tr> <td>* See Figure 8.4.</td> <td></td> <td></td> <td></td> <td></td> </tr> </table> 8.07 MANHOLE STANDARDS A. Manholes shall be located as follows: 1. At the end of each line. 2. At all changes in grade, size, or alignment. 3. At all intersection of pipes. 4. At distances not greater than 400 feet.