# The Quality of Bathing Water Regulations (Northern Ireland) 2008, Paragraph 1

Extent: N.I.

The Department shall use the following standards for classification—
Standards for inland waters
Parameter
“Excellent”
“Good”
“Sufficient”
(1)Colony forming units per 100 millilitres (“cfu/100ml”)
(2)Based upon a 95-percentlie evaluation
(3)Based upon a 90-percentile evaluation
Intestinal enterococci
200
400
330
Escherichia coli
500
1,000
900
Standards for coastal and transitional waters
Parameter
“Excellent”
“Good”
“Sufficient”
(1)Colony forming units per 100 millilitres (“cfu/100ml”)
(2)Based upon a 95-percentlie evaluation
(3)Based upon a 90-percentile evaluation
Intestinal enterococci
100
200
185
Escherichia coli
250
500
500

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Source: https://www.legislation.gov.uk/nisr/2008/231/schedule/4/paragraph/1 (the official version)
Page: https://openlegislation.uk/quality-of-bathing-water-regulations-northern-ireland-2008/schedule-4/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.