# The Water Supply (Water Quality) Regulations (Northern Ireland) 2002, Part TABLE A.: MICROBIOLOGICAL PARAMETERS

Extent: N.I.

Part I:
Directive requirements
Item
Parameters
Concentration or Value (maximum)
Units of Measurement
Point of compliance
Note:
*Where water is supplied from a tanker see regulation 4(3)(a)
1.
Enterococci
0
number/100ml
Consumers' taps
2.
Escherichia coli (E. coli)
0
number/100ml
Consumers' taps
Part II:
National requirements
Item
Parameters
Concentration or Value (maximum)
Units of Measurement
Point of compliance
Note:
**Compliance required as to 95% of samples taken for coliform bacteria from each service reservoir (regulation 4(6)).
1.
Coliform bacteria
0
number/100ml
Service reservoirs and water treatment works
2.
Escherichia coli (E. coli)
0
number/100ml
Service reservoirs and water treatment works

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Source: https://www.legislation.gov.uk/nisr/2002/331/schedule/1/part/1 (the official version)
Page: https://openlegislation.uk/water-supply-water-quality-regulations-northern-ireland-2002/schedule-1/part-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.