07/0604 - Approved Plans [As Published] · 142007.604

1.9.2 STANDARDS

Soils
General: To AS 4419 (Int). — 1996 "Garden Soils for Landscaping and Garden Use’.

1.9.3 INTERPRETATION

Definitions

Topsoil shall be free of any deleterious matter including sub-soil, turf, weeds, sticks and
roots, stones over 25mm diameter and any material toxic to plant growth. Acidity range
shall be pH 6 - 7 or as recommended by an Agronomist.

 

 

 

 

 

1.10.1 VEGETATIVE SPOIL

 

Remove vegetative spoil from site. Do not burn.

1.10.2 SITE TOPSOIL

Site topsoil shall be stripped and re-structured from the construction zone by principal.
The contractor shall be responsible for the supply of truck, carting and placement of site
topsoil. Loading of topsoil on to truck shall be by principal. Loading by principal from
nominated stockpile requires a supply program given 2 weeks prior to requiring of
topsoil. Dust suppression of access roads during carting and placement is landscape
contractor's responsibility.

1.10.3 ANALYSIS

Restructuring of topsoil to be carried out by others. Sample to be provided to the
Superintendent prior to placement.

1.10.4 ADDITIVES

If using additives to raise topsoil to the required standard ensure compliance with the
relevant test criteria and the Agronomist’s recommendations following soil analysis.

 

 

 

If it is necessary to stockpile topsoil on site do so in locations as directed by the
Superintendent, to heights not exceeding 900 mm. Protect from wind.

 

 

 

 

 

1.12.1 GENERAL

 

Spread the topsoil on the prepared subsoil and grade evenly, making the necessary
allowances to permit the following to finish flush with adjacent hard surfaces such as
kerbs, paths and mowing strips.