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PART 7 Investigations, authorisation of departures and remedial action
PART 10 Functions of local authorities in relation to water quality
PART2 Annual sampling frequencies: water supply zones
Annual sampling frequencies for Group A4 parameters: water supply zones
For the purposes of this table, where the population is...
PART3 Annual sampling frequencies: treatment works and supply points
Annual sampling frequencies for Group A2 parameters: treatment works or supply points
Monitoring for indicative dose and analytical performance characteristics