CSA B65-2012 Installation code for decentralized wastewater systems (First Edition).pdf

1、B65-12Installation code for decentralized wastewater systemsLegal Notice for StandardsCanadian Standards Association (CSA) standards are developed through a consensus standards development process approved by the Standards Council of Canada. This process brings together volunteers representing varie

2、d viewpoints and interests to achieve consensus and develop a standard. Although CSA administers the process and establishes rules to promote fairness in achieving consensus, it does not independently test, evaluate, or verify the content of standards.Disclaimer and exclusion of liabilityThis docume

3、nt is provided without any representations, warranties, or conditions of any kind, express or implied, including, without limitation, implied warranties or conditions concerning this documents fitness for a particular purpose or use, its merchantability, or its non-infringement of any third partys i

4、ntellectual property rights. CSA does not warrant the accuracy, completeness, or currency of any of the information published in this document. CSA makes no representations or warranties regarding this documents compliance with any applicable statute, rule, or regulation. IN NO EVENT SHALL CSA, ITS

5、VOLUNTEERS, MEMBERS, SUBSIDIARIES, OR AFFILIATED COMPANIES, OR THEIR EMPLOYEES, DIRECTORS, OR OFFICERS, BE LIABLE FOR ANY DIRECT, INDIRECT, OR INCIDENTAL DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES, HOWSOEVER CAUSED, INCLUDING BUT NOT LIMITED TO SPECIAL OR CONSEQUENTIAL DAMAGES, LOST REVENUE, BUSINESS

6、 INTERRUPTION, LOST OR DAMAGED DATA, OR ANY OTHER COMMERCIAL OR ECONOMIC LOSS, WHETHER BASED IN CONTRACT, TORT (INCLUDING NEGLIGENCE), OR ANY OTHER THEORY OF LIABILITY, ARISING OUT OF OR RESULTING FROM ACCESS TO OR POSSESSION OR USE OF THIS DOCUMENT, EVEN IF CSA HAS BEEN ADVISED OF THE POSSIBILITY O

7、F SUCH DAMAGES, INJURY, LOSS, COSTS, OR EXPENSES.In publishing and making this document available, CSA is not undertaking to render professional or other services for or on behalf of any person or entity or to perform any duty owed by any person or entity to another person or entity. The information

8、 in this document is directed to those who have the appropriate degree of experience to use and apply its contents, and CSA accepts no responsibility whatsoever arising in any way from any and all use of or reliance on the information contained in this document. CSA is a private not-for-profit compa

9、ny that publishes voluntary standards and related documents. CSA has no power, nor does it undertake, to enforce compliance with the contents of the standards or other documents it publishes. Intellectual property rights and ownershipAs between CSA and the users of this document (whether it be in pr

10、inted or electronic form), CSA is the owner, or the authorized licensee, of all works contained herein that are protected by copyright, all trade-marks (except as otherwise noted to the contrary), and all inventions and trade secrets that may be contained in this document, whether or not such invent

11、ions and trade secrets are protected by patents and applications for patents. Without limitation, the unauthorized use, modification, copying, or disclosure of this document may violate laws that protect CSAs and/or others intellectual property and may give rise to a right in CSA and/or others to se

12、ek legal redress for such use, modification, copying, or disclosure. To the extent permitted by licence or by law, CSA reserves all intellectual property rights in this document.Patent rightsAttention is drawn to the possibility that some of the elements of this standard may be the subject of patent

13、 rights. CSA shall not be held responsible for identifying any or all such patent rights. Users of this standard are expressly advised that determination of the validity of any such patent rights is entirely their own responsibility.Authorized use of this documentThis document is being provided by C

14、SA for informational and non-commercial use only. The user of this document is authorized to do only the following:If this document is in electronic form:.load this document onto a computer for the sole purpose of reviewing it;.search and browse this document; and.print this document if it is in PDF

15、 format. Limited copies of this document in print or paper form may be distributed only to persons who are authorized by CSA to have such copies, and only if this Legal Notice appears on each such copy.In addition, users may not and may not permit others to.alter this document in any way or remove t

16、his Legal Notice from the attached standard;.sell this document without authorization from CSA; or.make an electronic copy of this document.If you do not agree with any of the terms and conditions contained in this Legal Notice, you may not load or use this document or make any copies of the content

17、s hereof, and if you do make such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.CSA Standards Update ServiceB65-12March 2012Title: Installation code for decentralized wastewater systemsPaginatio

18、n: 89 pages (x preliminary and 79 text), each dated March 2012To register for e-mail notification about any updates to this publicationgo on-line to shop.csa.caclick on E-mail Services under MY ACCOUNTclick on CSA Standards Update ServiceThe List ID that you will need to register for updates to this

19、 publication is 2421753.If you require assistance, please e-mail techsupportcsa.ca or call 416-747-2233.Visit CSAs policy on privacy at csagroup.org/legal to find out how we protect your personal information.Published in March 2012 by Canadian Standards AssociationA not-for-profit private sector org

20、anization5060 Spectrum Way, Suite 100, Mississauga, Ontario, Canada L4W 5N61-800-463-6727 416-747-4044Visit our Online Store at shop.csa.caB65-12Installation code for decentralized wastewater systemsCSA Standard100%ISBN 978-1-55491-688-7 Canadian Standards Association 2012All rights reserved. No par

21、t of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.To purchase CSA Standards and related publications, visit CSAs Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044.The Canadian Standards Association (CSA) prints its

22、 publications on Rolland Enviro100, which contains 100% recycled post-consumer fibre, is EcoLogo and Processed Chlorine Free certified, and was manufactured using biogas energy.March 2012 iiiContents Canadian Standards Association Installation code for decentralized wastewater systemsTechnical Commi

23、ttee on Decentralized Wastewater Systems viiPreface x0Introduction 10.1 General 10.2 Expectations 10.3 Intent 10.4 Major goals 10.5 Additional goals 20.6 Innovation 20.7 Approvals 21Scope 22 Reference publications 33 Definitions and abbreviations 53.1 Definitions 53.2 Abbreviations 94General 94.1 Ge

24、neral 94.2 Natural and imported soils 94.3 Site slope 94.4 Frost protection 94.5 Personnel 95Design 106 Site evaluation 106.1 General 106.2 Soil profiles 116.2.1 General 116.2.2 Horizons 116.2.3 Saturated zones 116.2.4 Colour 116.2.5 Texture and permeability 126.2.6 Structure 126.2.7 Consistence 126

25、.2.8 Salinity 126.2.9 Bedrock 126.2.10 Limiting layer 126.2.11 Permafrost 126.3 Surface elevations and drainage features 126.4 Area available 136.5 Site evaluation report 136.5.1 Minimum content 136.5.2 Additional content 13B65-12 Canadian Standards Associationiv March 20127 Wastewater flows and str

26、ength 147.1 Residential flows 147.2 Non-residential flows 147.3 Daily flow variances 157.4 Wastewater strength 157.4.1 Residential 157.4.2 Non-residential 158 Upstream components 158.1 Primary treatment components 158.1.1 General 158.1.2 Effluent quality 158.1.3 Exceptions 158.2 Additional treatment

27、 168.3 Septic tanks 168.3.1 Working capacity 168.3.2 Access 168.3.3 Water tightness 178.3.4 Insulation 178.3.5 Horizontal setback distances 178.3.6 Venting 178.3.7 Effluent filtration 178.3.8 Installation 188.3.9 Compliance 188.4 Effluent tanks and effluent chambers 188.4.1 General 188.4.2 Capacity

28、188.4.3 Access openings 188.4.4 Water tightness 188.4.5 Insulation 188.4.6 Location 188.4.7 Installation 188.4.8 Venting 198.4.9 Compliance 198.5 Advanced treatment devices 198.5.1 Performance 198.5.2 Installation 198.5.3 Setback distances 198.6 Effluent pumps 198.6.1 General 198.6.2 Plumbing criter

29、ia 198.6.3 Liquid level sensors 208.6.4 High-liquid-level alarm 208.6.5 Electrical criteria 208.7 Grease interceptors 208.7.1 General 208.7.2 Compliance 208.7.3 Sizing, selection, location, installation, and maintenance 208.7.4 Horizontal setback distances 208.8 Sampling ports 208.9 Piping 208.9.1 G

30、eneral 208.9.2 Non-pressurized piping 218.9.3 Pressurized piping 21 Canadian Standards Association Installation code for decentralized wastewater systemsMarch 2012 v8.9.4 Joints 218.9.5 Flow monitoring 218.10 Alarms 218.10.1 Alarm types 218.10.2 Location and functionality 219 Soil absorption systems

31、 229.1 General 229.2 Vertical separation 229.3 Horizontal setback distances 229.4 Loading rates 229.4.1 Hydraulic loading rates 229.4.2 Linear loading rate 239.4.3 Imported fills 259.5 Materials and dimensioning 259.5.1 Gravel-based systems 259.5.2 Materials 259.5.3 Trenches 269.5.4 Gravel-less and

32、gravel substitute systems 279.5.5 Inspection ports 279.6 Nutrient loading 279.7 Pressure-distribution systems 279.7.1 General 279.7.2 Design 279.7.3 Distribution piping 279.7.4 Orifices 289.7.5 Dosing 289.8 Other soil absorption systems 289.8.1 Seepage beds 289.8.2 Sand filters 299.8.3 Subsurface dr

33、ip dispersal 299.8.4 Contour systems 2910 Holding tanks 2910.1 Capacity 2910.2 Access openings 2910.3 Water tightness 2910.4 Insulation 2910.5 Setback distances and locations 3010.6 Installation 3010.7 Compliance 3011 Installation 30AnnexesA (informative) Operation and maintenance of decentralized w

34、astewater systems 49B (informative) Installation guideline for septic tanks 53C (informative) Soil categories and classification 54D (informative) Sludge and scum accumulation rates 60E (informative) Constant head well (pask) permeameter for in-situ measurement of field saturated hydraulic conductiv

35、ity of soils 65F (informative) Northern considerations 76B65-12 Canadian Standards Associationvi March 2012Tables1 Minimum vertical separation distances 312 Material specifications and loading rates for imported fills 313 Suitability of soil for effluent loading 334 Minimum horizontal setback distan

36、ces for soil absorption systems, m 335 Average and peak daily flows per occupant residential occupancies 346 Fixture units 347 Maximum area of dwellings based on the number of bedrooms 358 Non-residential peak daily flows 359 Levels of treatment 3710 Minimum working capacity of septic tanks 3711 Typ

37、es of treatment 3812 Maximum hydraulic loading rates 3913 Maximum linear loading rates, L/(md) 4114 Requirements for geotextiles (non-woven filter fabrics) 44Figures1 Vertical separation for a trench system 442 Vertical separation for imported fill 453 Illustration of the concept of the linear loadi

38、ng rate 454 Slope of groundwater and mounded water flowing from disposal area 465 Example of a system designed to control effluent flow direction 476 Mounding in native soil and fill 48 Canadian Standards Association Installation code for decentralized wastewater systemsMarch 2012 viiTechnical Commi

39、ttee on Decentralized Wastewater SystemsD. Joy University of Guelph,Guelph, OntarioChairA. Durnie Alberta Municipal Affairs,Edmonton, AlbertaVice-ChairJ. Aitkin Rankins Septic Tank Pumping (b) provide an explanation of circumstances surrounding the actual field condition; and(c) where possible, phra

40、se 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 published in CSAs Current Standard Activities, which is available on the CSA website

41、 at http:/standardsactivities.csa.ca.(5) CSA Standards are subject to periodic review, and suggestions for their improvement will be referred to the appropriate committee. To submit a proposal for change to CSA Standards, please send the following information to inquiriescsa.ca and include “Proposal

42、 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. Canadian Standards Association Installation code for decentralized wastewater systemsMarch 2012 1B65-12Installation

43、 code for decentralized wastewater systems0Introduction0.1 GeneralThis Code was developed in response to a request from provincial/territorial regulators, who saw the need for a national installation code for decentralized wastewater systems that would(a)provide a national basis for training and qua

44、lification of installers, inspectors, operators, and users;(b) enhance the protection of public health and safety;(c) enhance the protection of the environment;(d) create potential savings in resources by the sharing of knowledge among provincial/territorial and federal ministries;(e) standardize pr

45、actices and requirements across Canada to support the inter-provincial/territorial movement of labour, goods, and services;(f) consider the economic impact of compliance; and(g) provide a framework for consistent compliance throughout Canada.Experts from across North America had the opportunity to p

46、articipate in the development of this Code, and provinces, territories, and other stakeholders were able to provide their input on the technical content.0.2 ExpectationsIt is expected that this Code will(a)be adopted by provinces and territories across Canada and by federal ministries;(b) increase o

47、pportunities for sharing technical resources and training materials and therefore make closing the gaps between provincial, territorial, and federal regulations much easier and faster;(c) encourage research and innovation on a national scale and allow the results of research to have greater and more

48、 widespread application and benefit; and(d) be reviewed and updated to reflect the current state of knowledge in the decentralized wastewater industry.0.3 IntentThe intent of this Code is to specify requirements for the design and installation of decentralized wastewater systems and to provide guida

49、nce on recommended practices for the operation and maintenance of the systems.0.4 Major goalsThe major goals of this Code are to(a)specify requirements that result in decentralized wastewater systems that are sustainable long-term solutions for wastewater management;(b) enhance the protection of surface water and groundwater;(c) enhance the protection of the environment; and(d) enhance the protection of public health and safety.B65-12 Canadian Standards Association2 March 20120.5 Additional goalsIn addition to the goals listed in