Guidance

Bottled and mineral water scheme: sample schedule

Updated 9 March 2022

Bottled and mineral water scheme

Water and food microbiology examinations

Sample schedule for 1 April 2022 to 31 March 2023

Distribution number Sample numbers Dispatch date Date results due by Examinations and enumerations required*
BMW29 BMW29A BMW29B 4 Apr 2022 29 Apr 2022 Coliform bacteria

Escherichia coli

Enterococci

Pseudomonas aeruginosa

Sporulated sulphite-reducing anaerobes

Colony count (37ºC/24 hours)

Colony count (22ºC/72 hours)
BMW30 BMW30A BMW30B 1 Aug 2022 26 Aug 2022 Coliform bacteria

Escherichia coli

Enterococci

Pseudomonas aeruginosa

Sporulated sulphite-reducing anaerobes

Colony count (37ºC/24 hours)

Colony count (22ºC/72 hours)
BMW31 BMW31A BMW31B 9 Jan 2023 3 Feb 2023 Coliform bacteria

Escherichia coli

Enterococci

Pseudomonas aeruginosa

Sporulated sulphite-reducing anaerobes

Colony count (37ºC/24 hours)

Colony count (22ºC/72 hours)

*Sporulated sulphite-reducing anaerobes per 50mL; colony count per 1mL; all other counts are per 250mL