The Water Supply (Water Quality) Regulations 2001

Made: 7th December 2001

Laid before Parliament: 10th December 2001

Coming into force in accordance with regulation 1(2) to (5)

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PART I — GENERAL

Citation, commencement and application

1

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Interpretation

2

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PART II — WATER SUPPLY ZONES

Water supply zones

3

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PART III — WHOLESOMENESS

Wholesomeness

4

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PART IV — MONITORING OF WATER SUPPLIES

Interpretation and application of Part IV

5

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Monitoring: general provisions

6

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Sampling points

7

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Authorisation of supply points

8

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Numbers of samples

9

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Sampling: further provisions

10

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PART V — MONITORING — ADDITIONAL PROVISIONS

Interpretation of Part V

11

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Sampling for particular substances and parameters

12

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Sampling at treatment works

13

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Sampling at service reservoirs

14

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Sampling: new sources

15

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Collection and analysis of samples

16

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PART VI — INVESTIGATIONS, AUTHORISATION OF DEPARTURES AND REMEDIAL ACTION

Investigations: Schedule 1 parameters

17

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Investigations: indicator parameters

18

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Action by National Assembly for Wales

19

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Authorisation of temporary supply of water that is not wholesome

20

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Authorisations: terms and conditions

21

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Authorisations: other limitations

22

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Publicity for authorisations

23

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Revocation and modification of authorisations

24

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PART VII — WATER TREATMENT

Interpretation

25

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Treatment of raw water

26

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Risk assessment for cryptosporidium

27

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Procedure following risk assessment and prohibition of supply

28

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Treatment for cryptosporidium

29

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Contamination from pipes

30

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Application and introduction of substances and products

31

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Use of processes

32

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Offences

33

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PART VIII — RECORDS AND INFORMATION

Maintenance of records

34

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Provision of information

35

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Publication of information

36

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PART IX — FUNCTIONS OF LOCAL AUTHORITIES IN RELATION TO WATER QUALITY

Application and interpretation

37

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Duties of local authorities: supplementary provision

38

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PART X — ENFORCEMENT

Contraventions by water undertakers

39

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PART XI — AMENDMENT AND REVOCATION OF REGULATIONS AND SAVING AND TRANSITIONAL PROVISION

Amendment of the Water Supply (Water Quality) Regulations 1989

40

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Transitional provision: programmes of work

41

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Transitional provision: authorisations

42

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Revocation of Regulations and savings

43

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SCHEDULE 1 — PRESCRIBED CONCENTRATIONS AND VALUES

TABLE A — MICROBIOLOGICAL PARAMETERS

Item	Parameters	Concentration or Value (maximum)	Units of Measurement	Point of compliance
1.	Enterococci	0	number/100ml	Consumers' taps
2.	Escherichia coli (E. coli)	0	number/100ml	Consumers' taps
Item	Parameters	Concentration or Value (maximum)	Units of Measurement	Point of compliance
---	---	---	---	---
Note:	Note:	Note:	Note:	Note:
* Compliance required as to 95% of samples from each service reservoir (regulation 4(6)).	* Compliance required as to 95% of samples from each service reservoir (regulation 4(6)).	* Compliance required as to 95% of samples from each service reservoir (regulation 4(6)).	* Compliance required as to 95% of samples from each service reservoir (regulation 4(6)).	* Compliance required as to 95% of samples from each service reservoir (regulation 4(6)).
1.	Coliform bacteria	0	number/100ml	Service reservoirs[^f01000] and water treatment works
2.	Escherichia coli (E. coli)	0	number/100ml	Service reservoirs and water treatment works

TABLE B — CHEMICAL PARAMETERS