div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: septic tank NORTH 2085 1 PLAN 2 Excavation Generally: All ocavations shall be carried out in accordarKe with BS 5931: 1981 and BS 8004: 1986 src=https:reader031fdocumentsinreader031viewer20220218205adaed0a7f8b9a53618d46dahtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdiv