Acid Sulfate Management Plan · MCU16/0103

FPE Ref: 4956-161019-1.0



5.0 RESULTS

5.1 PH FIELD AND PH FOX RESULTS
The results of the field testing have been shown below in Table 2.

Table 2: Results of Field pHF and pHFOX Analysis




The field test pHF results indicate of all the 16 samples tested no pH values were below 4.0 that would
usually indicate the presence of Actual Acid Sulfate Soils (AASS).

Within the site locations, a minimum pHF value of 7.05 and maximum of 8.02 was detected over all the 16
samples tested.

In relation to the field test pHfox results, 11 samples were found to have a pH below the pHFOX 3 trigger
value. These were noted in BH1 at depths at or below 1.0m and in BH2 from surface down to 1.5m depth.

All 16 samples displayed a drop of >2pH units.

It was noted that of the 16 samples tested, 11 were shown to experience a very vigorous reaction. These
reactions occurred below 1.0m in BH1 and throughout most of the soil profile at BH2.




October 2016                         Acid Sulfate Soil Investigation Report                           11
                                           New Duplex, Noosaville