The documents here provide guidance to water companies, inset appointees and licensed suppliers on the implementation of:
i) the Water Supply (Water Quality) Regulations 2016 (S.I. 2016/614), as amended by the 2018 Amendment Regulations (S.I 2018/706), that apply to water companies whose areas of supply are wholly or mainly in England, and
ii) the Water Supply (Water Quality) Regulations (Wales) (S.I. 2018/647 (W.121)) that apply to water companies whose areas of supply are wholly or mainly in Wales.
These statutory instruments are known collectively as the Regulations.
In all sections covering individual Regulations, the main paragraph reference numbers relate directly to the relevant English regulation number. Wherever the Welsh Regulation number is different to the equivalent English regulation, the Welsh regulation is referred to alongside in square brackets thus: [ ].
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Introduction – Purpose; Regulatory framework in England and Wales; References
| Introduction
| Version 3.0, April 2020
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Part 1 – General Regulations, Definitions
| Regs 1-2
| Version 3.0, April 2020
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Part 2 – Water supply zones – Delineation and designation of water supply zones
| Reg 3
| Version 3.0, April 2020
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Part 3 – Wholesomeness
| Reg 4
| Version 3.1, October 2021
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Part 4 – Monitoring of water supplies and Appendix 6.1 – Radioactivity – Monitoring
| Regs 5-10 and Appendix 6.1
| Version 3.2, October 2021
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Part 5 – Monitoring additional provisions – Sampling at treatment works and service reservoirs
| Regs 12-14 [11-13]
| Version 3.0, April 2020
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Part 5 – Monitoring additional provisions – Sampling new sources
| Reg 15 [14]
| Version 3.0, April 2020
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Part 5 – Monitoring additional provisions – Collection and analysis of samples and Appendix 16.1 Analysis of samples
| Reg 16 [15] and Appendix 16.1
| Version 3.1, May 2022
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Part 6 – Drinking water protected areas – Abstraction point monitoring
| Reg 17
| Version 3.0, April 2020
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Part 7 – Investigations, authorisation of departures and public buildings
| Regs 18-25
| Version 3.1, October 2021
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Part 8 – Water treatment – Disinfection and other treatment arrangements
| Reg 26
| Version 3.1, October 2021
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Part 8 – Water treatment – Risk assessment, plumbosolvency treatment and replacement of lead pipes
| Regs 27-30
| Version 3.0, April 2020
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Part 8 – Water treatment – Materials and products. Offences.
| Regs 31-33
| Version 3.0, April 2020
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Part 9 – Records and information- Public records, and Part 11 – Enforcement
| Regs 34-35, 38
| Version 3.1, October 2021
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