20517 App N.pdf [As Published] · 132007.1259

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sample 2 Screening Test Indicators
Material -
Bore | Depth Type Reaction | pHr | pHrox | Strong reaction pHe-pHroot | pHrox<3
(m) with peroxide

0.0-0.25 Fill and Sand Weak 52| 3.0 ¥
0.25-0.5 Sand Very Weak | 4.5 | 3.1 v
0.5-0.75 Sand Very Weak | 5.0 3.8 v
0.75-1.0 Sand Very Weak | 4.9 | 5.3

3 4.0-1.25 Sand Very Weak | 5.0 | 5.2
1.25-1.5 Sand Very Weak | 4.8 | 3.6 v
4.5-1.75 Sand “Very Weak | 5.3 | 5.1
1.75-2.0 Sand Very Weak | 5.6 5.8
2.0-2.25 Sand Very Weak | 5.9 5.8
2.25-2.5 Sand Very Weak | 6.1 5.9
0.0-0.25 Fill and Sand Weak 62) 48 wv
0.25-0.5 Sand Very Weak | 54} 4.1 v
0.5-0.75 Sand Very Weak | 5.3 | 5.5
0.75-1.0 Sand Very Weak | 4.9 | 5.2

4 4.0-1.25 Sand Very Weak | 5.7 5.6
1.25-1.5 Sand Very Weak | 5.9 | 5.1
4.5-1.75 Sand Very Weak | 5.5 5.5
1.75-2.0 Sand Very Weak | 5.9 | 5.5
2.0-2.25 Sand Very Weak | 6.0 | 5.5
2.25-2.5 Sand Very Weak | 5.9 5.6
0.0-0.25 Silty Sand Weak a ae) v v
0.25-0.5 Silty Sand and Sand Weak 5.7 | 24 v v
0.5-0.75 Sand Weak 6.1] 41 v
0.75-1.0 Sand Weak 58 | 43 v

5 1.0-1.25 Sand Very Weak | 5.0} 4.9
4.25-1.5 Sand Very Weak | 4.9 5.0
4.5-1.75 Sand Very Weak | 5.2 57
1.75-2.0 Sand Very Weak | 5.8 | 5.6
2.0-2.25 Sand Very Weak | 5.7 | 56
2.25-2.5 Sand Very Weak | 59 |} 5.6
0.0-0.25 Silty Sand Weak 6.2] 39 v
0.25-0.5 Silty Sand and Sand Very Weak | 6.3 5.0 v
0.5-0.75 Sand Very Weak | 5.9 |} 5.4
0.75-1.0 Sand Very Weak | 6.2 | 5.7

6 1.0-1.25 Sand Very Weak | 5.9 |} 4.4 wv
4.25-1.5 Sand Very Weak | 6.1 5.8
4.5-1.75 Sand Very Weak | 5.6 5.8
1.75-2.0 Sand Very Weak | 5.8 5.7
2.0-2.25 Sand Very Weak | 54} 5.1
2.25-2.5 Sand Very Weak | 5.9 oT

 

 

 

 

 

 

 

 

 

The results of the screening tests indicate reactions ranging from very weak to very strong after the addition of
hydrogen peroxide; pHrox values 1 pH unit below the pHr value measured in nearly all the samples analysed;
and a significant number of samples analysed yielded pHrox values below 3 pH units.

 

Residential Development
215-219 David Low Way, Peregian Beach

Project No. 07160

Page 7 of 10

18 June 2007