# The Bathing Water Regulations 2013, Paragraph 1: Standards


The appropriate agency must use the following standards for classification—
Standards for inland waters
1 Colony forming units per 100 millilitres (“cfu/100 ml”).
2 Based upon a 95-percentile evaluation-see paragraph 2.
3 Based upon a 90-percentile evaluation-see paragraph 2.
Parameter
“Excellent”
“Good”
“Sufficient”
Intestinal enterococci1
2002
4002
3303
Escherichia coli(1)
5002
1,0002
9003
Standards for coastal and transitional waters
1 Colony forming units per 100 millilitres (“cfu/100 ml”).
2 Based upon a 95-percentile evaluation-see paragraph 2.
3 Based upon a 90-percentile evaluation-see paragraph 2.
Parameter
“Excellent”
“Good”
“Sufficient”
Intestinal enterococci1
1002
2002
1853
Escherichia coli1
2502
5002
5003

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Source: https://www.legislation.gov.uk/uksi/2013/1675/schedule/5/paragraph/1 (the official version)
Page: https://openlegislation.uk/bathing-water-regulations-2013/schedule-5/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.