Attachment A Soil reports

Indicative Permeability

 

 

 

 

 

 

 

 

 

 

 

Test Site: 3 4 | 5
Soil Category 6 D 5
| Structure Moderate Moderate Moderate
Indicative Permeability - <0.06 0.12-0.5 0.12-0.5
DIR 15 20 20
Recommendations:

Based upon our Site and Soil Assessments we recommend the following method of On-Site Effluent
Disposal should be used

For the treatment of the Effluent we recommend;
Advanced Secondary WasteWater Treatment System (AWTS)
(NOTE: The system chosen must satisfy both the Queensland Plumbing and Wastewater Code and

AS1547-2000 On-Site Domestic Waste Water Code and be approved for use by the Local Shire/Council
governing the allotment.)

For the disposal of the treated effluent within the Land Application Area we recommend;

A Pregguriged Su6-Sutface Reticulated Jrrigation System

(NOTE: Where Surface irrigation is used in conjunction with an Aerobic Sand Filtration System the treated
effluent shall be disinfected with chlorine prior to dosing of the Land Application Area.)

The size of the Land Application Area is calculated as follows;

Minimum requirement q 115 litres per person per day AS 1547-2000 Appendix 4.2D
Water Supply Tank water
Number of persons = 6 AS 1547 Table 4.343
Total Volume Q= 4830 min/week
Soil Category 5 AS 1547 Table 4.2A4
Indicative permeability 0.06-0.12 AS 1547 Table 4.244
DIR 20 mm/day AS 1547 Table 4.2A4
Disposal Area A= 242 m

AUSTRALIAN SOIL INVESTIGATIONS ASI Ref: 140120(A)