CSA Group CSA B126 Series:13 Water cisterns

Preface

This is the first edition of the CSA B126 Series of Standards, Water cisterns. It consists of the following
Standards:
(a) CSA B126.0, General requirements and methods of testing for water cisterns;
(b) CSA B126.1, Installation of water cisterns;
(c) CSA B126.2, Commissioning and field inspection of water cisterns;
(d) CSA B126.3, Operation and maintenance of water cisterns;
(e) CSA B126.4, Decommissioning of water cisterns; and
(f) CSA B126.5, Mobile water cisterns.
 These Standards are considered suitable for use for conformity assessment within the stated Scope of
the Standards.
 The development of these Standards was made possible, in part, thanks to the financial support of
Agriculture and Agri-Food Canada, Alberta Health, Canada Mortgage and Housing Corporation, Health
Canada, Manitoba Water Stewardship, Saskatchewan Ministry of the Environment, Fiber Technology
Corporation, and Aboriginal Affairs and Northern Development Canada. Such support does not indicate
endorsement of the contents of these Standards.
 These Standards were prepared by the CSA Technical Committee on Water Cisterns, under the
jurisdiction of the CSA Strategic Steering Committee on Construction and Civil Infrastructure, and have
been formally approved by the Technical Committee.

Notes:
(1) Use of the singular does not exclude the plural (and vice versa) when the sense allows.
(2) Although the intended primary application of this Standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the Standard to judge its suitability for their particular purpose.
(3) This Standard was developed by consensus, which is defined by CSA Policy governing standardization — Code of good practice for standardization as “substantial agreement. Consensus implies much more than a simple majority, but not necessarily unanimity”. It is consistent with this definition that a member may be included in the Technical Committee list and yet not be in full agreement with all clauses of this Standard.
(4) To submit a request for interpretation of this Standard, please send the following information to
[email protected] and include “Request for interpretation” in the subject line:
(a) define the problem, making reference to the specific clause, and, where appropriate, include an illustrative sketch;
(b) provide an explanation of circumstances surrounding the actual field condition; and
(c) where possible, phrase the request in such a way that a specific “yes” or “no” answer will address the issue.
Committee interpretations are processed in accordance with the CSA Directives and guidelines governing
standardization and are available on the Current Standards Activities page at standardsactivities.csa.ca.
(5) This Standard is subject to review five years from the date of publication, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send the following information to [email protected] and include “Proposal for change” in the subject line:
(a) Standard designation (number);
(b) relevant clause, table, and/or figure number;
(c) wording of the proposed change; and
(d) rationale for the change.

1 Scope

1.1 General
This Standard specifies materials, design, manufacturing practices, methods of testing, and markings for
prefabricated water cisterns for potable and non-potable applications.

1.2 Types of cisterns
Cisterns covered in this Standard are
(a) made of steel, stainless steel, concrete, composite materials such as fibre-reinforced plastic (FRP), and polymers such as polyethylene;
Note: This Standard includes allowance for alternative materials.
(b) not pressurized;
(c) intended for above-ground, elevated, or buried installations, indoor and outdoor;
(d) intended to serve single-family dwellings, multi-family dwellings, and commercial establishments, or
form an integral part of non-municipal communal water supply systems; and
(e) intended for mobile applications for replenishment of fixed installations and on-site distribution.

1.3 Cisterns not covered by the CSA B126 Series
This Standard does not cover
(a) water barrels and containers that are not connected to the plumbing system; and
(b) cisterns that form an integral part of municipal water works or municipal water supply systems.

1.4 Requirements for potable water cisterns
Specific requirements for cisterns intended for potable water applications are specified within each
standard of the CSA B126 Series where applicable and identified as additional requirements for potable
water cisterns.

1.5 Diction
In CSA Standards, “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; “may” is used to express an option or that which is permissible within the limits of the standard; and “can” is used to express possibility or capability.
 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.

1.6 Dual dimensions
The values given in SI units are the units of record for the purpose of this Standard. The values given in
parentheses are for information and comparison only. All references to gallons are to U.S. gallons.