Appendix 4- SWMP

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                                       4.    Tank structure



1. Cover (PE Cover or Car Module)                                       1


                                                                       2.1

2.1 Telescopic attachment




                                                 Extension riser
                                                                       2.2



                                                                       2.3
2.2 Telescopic conical nipple /
    Dome Shaft conical nipple
                                                                       2.2


                                                                        3
2.3 Dome Shaft



3. Li-Lo Rainwater
   Underground Tank




                                  5.   Installation and assembly


  Subsoil                                                          Covering layer
  Extension riser                                                  Li-Lo Rainwater Underground Tank
  Compacted foundation                                             Concrete layer for surfaces used by passenger
  Surrounding (round-grained gravel, max.                            cars
    grain size 8/16)                                               ß  DIN 4124 from 1250 mm (49.2 inch) depth of
                                                                             the trench



                                                                                   ß --> DIN 4124
     1                            4          7                                2            5          ß

                                                                                                          >> 100
                                                                                                             100 mm
                                                                                                                 mm 3.9 inch


                                                                                                          << 300
                                                                                                             300 mm
                                                                                                                 mm 11.8 inch

                                                                                                          << 300
                                                                                                             300 mm
                                                                                                                 mm 11.8 inch


                                                                                                          << 300
                                                                                                             300 mm
                                                                                                                 mm 11.8 inch


                                                                                                          << 300
                                                                                                             300 mm
                                                                                                                 mm 11.8 inch


                                                                                                          << 300
                                                                                                             300 mm
                                                                                                                 mm 11.8 inch
                                                                                                          >> 100
                                                                                                             100 mm
                                                                                                                 mm 3.9 inch




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