OPW16/0021- Operational Works Application 2 of 4

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5 Bioretention!Maintenance!Manual!
The!owner!(or!tenant)!of!the!site!will!be!the!asset!custodian!and!be!responsible!for!
maintenance!of!the!bioretention!system.!!The!asset!custodian!will!need!to!undertake!
onZgoing! maintenance! of! the! water! quality! devices.! ! Maintenance! for! the!
bioretention!basins!may!involve!the!following:!
    1.   Scheduled!inspections;!
    2.   Removal!of!noxious!plants!or!weeds;!
    3.   Maintaining!the!desired!vegetation;!!
    4.   Repairing!erosion;!
    5.   Unblocking!inlets!and!outlets;!
    6.   Removing!litter!and!debris;!
    7.   Managing!algal!or!moss!growth;!and!
    8.   Maintaining!the!permeability!of!the!filtration!media.!
To! assist! the! owner! (or! tenant)! with! the! onZgoing! maintenance! of! the! stormwater!
quality!devices!being!installed!onZsite,!a!Bioretention!Maintenance!Manual!has!been!
developed!and!is!provided!in!Appendix!4.!
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5 Bioretention Maintenance Manual

The owner (or tenant) of the site will be the asset custodian and be responsible for
maintenance of the bioretention system. The asset custodian will need to undertake
on-going maintenance of the water quality devices. Maintenance for the
bioretention basins may involve the following:

1.

Now FWD

8.

Scheduled inspections;

Removal of noxious plants or weeds;

Maintaining the desired vegetation;

Repairing erosion;

Unblocking inlets and outlets;

Removing litter and debris;

Managing algal or moss growth; and

Maintaining the permeability of the filtration media.

To assist the owner (or tenant) with the on-going maintenance of the stormwater
quality devices being installed on-site, a Bioretention Maintenance Manual has been
developed and is provided in Appendix 4.

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