Natural Resources

Categories: Natural Resources
Origin: CSA
Close date: Apr 23, 2018
View moreView less


1. Purpose

This purpose of this Standard is to provide guidance on and covers the construction considerations for bioretention systems.

This Standard covers the following items:

roles and responsibilities;

contract documentation;

construction sequencing;

erosion and sediment control for bioretention systems;


material supply and handling

installation considerations;

landscape materials and maintenance;

construction warranty maintenance; and

assumption protocols.

0.2 Terminology

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

0.3 Requirements of Local Jurisdictions

This Standard provides requirements and recommendations for the construction of bioretention systems.  In the application of this Standard it should be noted that local jurisdictions, municipal, provincial and federal, may have criteria or requirements beyond what is provided in this Standard. The user of this Standard is responsible for determining any local requirements and these requirements shall take precedence over those provided for in this Standard.