16-02-23 Noosa Council Ltr

FORM C — BIORETENTION MEDIA (CONT.)

INSTALLATION OF BIORETENTION MEDIA

Base of system free from debris

Drainage layer (fine gravel) installed to
correct depth (+25 mm)

Transition layer (coarse sand) installed to
correct depth (+25 mm)

Placement of filter media completed to
avoid compaction of media and using at
least two lifts

Filter media installed to correct depth

ACTION (IF

SATISERCTORY, UNSATISFACTORY)

INITIAL

 

Light, even compaction applied to
remove air gaps (e.g. light roller or single
pass with a ‘pozitrack’ bobcat)

Spreader bar used to flatten surface of
filter media

 

 

Sediment fences in place

 

 

INSPECTION: Superintendent and bioretention designer inspection and sign-off to occur while installation of media is

occurring. Photos must be taken by the superintendent, the bioretention designer or the contractor.

Comments (attach and refer to additional pages if necessary)

NB: Laboratory test results, certification, delivery dockets and photos attached

Signed by superintendent:
Print name:

Date:

Signed by bioretention designer:
Print name:

Date: