Changes

Specify that 4 litre samples of topsoil, from each source to be drawn upon, be provided to the consultant for visual inspection, along with topsoil quality test results from an accredited soil testing laboratory, or a quality assurance certificate from the supplier.  

Specify that 4 litre samples of topsoil, from each source to be drawn upon, be provided to the consultant for visual inspection, along with topsoil quality test results from an accredited soil testing laboratory, or a quality assurance certificate from the supplier.  

We recommend a planting soil depth of 300 mm for grasses, 600 mm for shrubs and perennials, and 1000 mm for trees.

We recommend a planting soil or filter media depth of 300 mm for grasses, 600 mm for shrubs and perennials, and 1000 mm for trees.

For use in producing bioretention filter media Blend B (water quality treatment priority), specify that the topsoil used must contain at least 9%, and not greater than 36% clay-sized particles.

For use in producing bioretention filter media Blend B (water quality treatment priority), specify that the topsoil used must contain at least 9%, and not greater than 36% clay-sized particles.

[[category: materials]]

[[category: materials]]