Appendix C - Site & Soil Evaluation and Effluent Disposal Report

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[OCR of page images]
Soil Borehole Results

Depth

0-300

500-800

800-1600

1600-2300

2300-3000

3000

Soil Description

Silty Sand SM
Fine to coarse grained, dark brown
roots, weakly.(Cat 2)

Sandy Clay CH
med to heavy clay, orange
roots, moderate.(Cat 4)

Gravelly Sand SM
Fine to coarse grained, brown
Moist, weakly (Cat 3)

Sandy Clay CH
med to heavy clay, orange
roots, moderate.(Cat 5)

Sandy Clay CH
Med to heavy clay, pale grey mottled red
Moist, moderate structure.(Cat 5-6)

Borehole Terminated

Constant Head Method permeability results

The following design criteria is applicable for the following disposal methods:

 

 

 

 

 

 

 

 

 

 

 

Test Site:
1 2 3
Fall (mm) 25 25 25
Time (mins) 2 1 3
(secs) 25 56 17
Indicative Permeability (Ksat) 1.6552 2.0690 1.2183
Soil Category 2 2 3
Indicative Permeability
Test Site: 1 2 3
Soil Category 2 2 3
Structure Weakly Weakly Weakly
Indicative Permeability 1.4-3.0 1.4-3.0 0.5-1.5
DLR 30 30 30
Recommendations:

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

should be used.

Disposal System Recommendations:

Based on our site assessment and testing we recommend that the most appropriate disposal method to be:

Advanced Secondary Treatment
With an AES Transpiration Bed

AUSTRALIAN SOIL INVESTIGATIONS

Page 3 of 6 ASI Ref: 210480(A)