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SUPERSEDEDApproved Plan OPW22-0123
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Log in to see the plans as drawn6.2. SOIL TYPES
The following soil test result requirements meet or exceed the current AS 4419 – 2018 requirements.
All test results must comply with the below testing requirements.
On Grade Soil Media - Turf
Quality – Soil must be free from any ‘unwanted materials’
Physical properties particle sizes
Property Units Target Range
2.0 mm (fine gravel) % retained by < 10
1.0 mm (very coarse sand) mass < 10
0.5 mm (coarse sand) 10 - 30 30 - 50
0.25 mm (medium sand) 20 - 40
0.1 mm (fine sand) 10 – 30
0.05 (very fine sand) 5 – 15 (max 25 % combine vfs, Si + Clay combined)
0.002 mm (silt) 5 – 10 (< 12 % Si + Clay combined)
< 0.002 mm (clay) 3 – 8 (< 12 % Si + Clay combined)
Large particles 2 – 20 mm = < 10 %, > 20mm = 0 %
(OM) Organic matter % dwb (dry Underlay Range 2 – 10%
content weight basis)
Permeability mm/hour > 20 (@32 drops by McIntyre Jakobsen)
Wettability (AS4419) mm/min >5
Dispensability in water 1 or 2 (AS 4419 Category)
Chemical Properties
Property Units Target Range
pH in water (1:5) pH units 5.4 – 7.5
pH in CaCl2 (1:5) pH units 5.2 – 7.5
Electrical conductivity (1:5) dS/m < 0.75
(EC)
Exchangeable Na % of eCEC <6
percentage
Exchangeable Ca/Mg ratio Ratio 3-9
Available phosphorus mg/kg 20 – 100
Mehlich 3
Olsen 20 - 50
Available nitrogen (nitrate mg/kg 20 - 60
N + ammonium N)
URBIS
URB -P0003847-001-SP PAGE 14
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