https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:34866 50. The size of the representative elementary volume (REV) of cracked CCL decreases linearly with the increase in soil LL when LL < 50. The linear fitting result is REV = 90.5 – 1.6 LL, whereas REV change is inconspicuous with a mean value of approximately 10 cm when LL > 50. The sample size of the CCLs for the permeability test must be larger than REV. Before and after three dry-wet cycles, the permeability ratio (K₃/k₀) initially increases and eventually decreases as soil LL increases, and LL at the peak value of K₃/k₀ is 36.1%. However, linear relationships exist between permeability D-value (K₃ − k₀) and soil LL in a semilog coordinate system when LL < 50%, whereas the change in the permeability D-value is inconspicuous with a mean value of approximately 1.67 × 10⁻⁸ cm/s when LL > 50%. The volume and mean width of unclosed cracks are two main factors that determine the increase in permeability after dry-wet cycles. After three dry-wet cycles, these factors decrease as soil LL increases, thereby reducing the permeability D-value.]]> Tue 03 Sep 2019 18:02:06 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:7360 Sat 24 Mar 2018 08:40:15 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:11103 Sat 24 Mar 2018 08:12:55 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:10816 Sat 24 Mar 2018 08:11:49 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:28325 Escherichia coli was detected in 16 of 59 monthly samples. Two of 36 treated water samples showed contamination by E. coli compared to 14 of 23 untreated water samples. Three of nine carted water supplies had E. coli at initial sampling. Thirty-four supplies had warning signs posted somewhere in the park. Twenty-one drinking water tanks had evidence of physical deterioration. No supply had a risk-based drinking water management plan. Treated water supplies had lower rates of E. coli detection and presented a lower risk than untreated water supplies. Survey and sampling results indicated the need for reviewing existing water quality warning signs in the recreational parks and implementation of risk-based drinking water management plans.]]> Sat 24 Mar 2018 07:25:14 AEDT ]]>