Water efficiency in buildings from a standards perspective

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Melanie McCarthy
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1 Water efficiency in buildings from a standards perspective Presented by Hana Gajdosova, BSI hana.gajdosova@bsigroup.com Prepared by Hana Gajdosova

2 Agenda 1. BSI - who are we? 2. Standards Development 3. BSI & Water Infrastructure 4. Water Efficiency Standards 5. How to Get Involved 2

3 Background to BSI In 1901 the Council of the Institution of Civil Engineers formed a committee to consider standardising iron and steel sections. 3

4 Global presence London Washington Hong Kong 67 offices worldwide 3 regional hubs in UK, US & Hong Kong 70,000 clients in 150 countries 2/6/2014 4

5 Standards development 34,000 7,000 2,500 Current standards In development New or revised every year Commitment 10,000 committee members 1,200 BSI committees 1,800 organisations Committee Consensus Consultation 5

6 Types of standards 6 British Standards (BSs) Public Available Specifications (PAS) Published Documents (PDs) Specification Vocabulary Guides Current thinking Code of practice Sound good practice Methods Highly prescriptive Absolute requirements Set of terms and definitions 6

7 BSI & Water Infrastructure Water supply Water reuse 7

8 Water supply BS 8542:2011 Calculating domestic water consumption in non-domestic buildings. Code of practice - Estimation of total water use - Volume consumed per head/unit per day or building per annum - Data collection and calculation methodologies BS EN 806 Series Specifications for installations inside buildings concerning water for human consumption - 5 Parts: General, design, pipe sizing, installation, operation and maintenance - Potable water installation - System of pipes, fittings and connected appliances - BS 8558:2011 Supplementary guidance 8

9 Water reuse BS 8515:2009+A1:2013 Rainwater harvesting systems. Code of practice - On-site collection and use of rainwater, supplying water for domestic water uses - Recommendations on design, installation, testing and maintenance BS :2010 & BS :2011 Greywater systems. Domestic greywater treatment equipment. Requirements & test methods - On-site collection and use of greywater (bathroom) - Recommendations on design, installation, alteration, testing and maintenance - Requirements and tests for treatment equipment BS 8595:2013 Code of practice for the selection of water reuse systems - Rainwater, stormwater and greywater as a supplement to public mains water supply - Non-potable water uses - New and existing developments - Residential and non-residential premises 9

dwellings Reuse of bath and shower water 100 litres = 15 toilet flushes Source: Kingspan Environmental (2009)

10 Case studies Rainwater harvesting system DEFRA Offices, Northumberland Fully integrated rainwater harvesting system with 12,000 litre storage tank Domestic GreywaterManagement System Oxley Gate, Milton Keynes 150 dwellings Reuse of bath and shower water 100 litres = 15 toilet flushes Source: Kingspan Environmental (2009) Kingspan Water. Rainwater Harvesting Source: Environment Agency, 10

11 Standards under revision BS 8558:2011 Guide to the design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages. Supplementary guidance to BS EN 806 Replaces BS 6700:2006 Design, installation, testing and maintenance of services supplying water for domestic use within buildings and their curtilages Specification Expected to kick off in February 2014 Expected to publish in Summer/Autumn 2015 Draft Review: 11

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13 How to get involved Getting in touch New ideas Suggestions Committee membership Commitment Training Networking Setting the standard Customer Services: Hana 13

Rainwater Harvesting & Greywater Recycling

Rainwater Harvesting & Greywater Recycling Brighton University, 19th July 2012 Agenda 1. Rainwater harvesting systems 2. Combined systems integrated attenuation 3. Greywater recycling systems Retrofit