Development Application Part 2 - Environmental & Stormwater Management Plans · OPW11/0335

5.3         Neutralisation of Disturbed ASS

The calculated liming rate for the natural silty clay soils based on the results of the Chromium Suite results is
given in Table 3 (and on the laboratory report sheets included in Appendix B) and is 2 kg of ag-lime/tonne of dry
natural silty clay soils, based on a factor of safety of 1.5 and the use of good quality fine ag-lime with a
neutralising value of 100 %.


It is suggested that consideration be given to the adoption of a neutralising value of 80 % in calculation of the
required liming rate to allow for potential inconsistencies in the quality of the ag-lime. The calculated liming rate
using a neutralising value of 80 % for the ag-lime would be approximately 3 kg dry natural silty day soils.




BUTLER PARTNERS PTY LTD
                                                                          Reviewed by
BRUCE BUTLER                                                              MIKE NEIGHBOUR
Principal                                                                 Principal




Residenliai Develop nenl                                                                                Page 10 of 10
215219 David Low Way. Peregian Beach
Project No. 07160                                                                                        18 June 2007