Annual Review of the Microbiological Quality of Drinking-Water in New Zealand 2001

Annual Review of the Microbiological Quality of Drinking-Water in New Zealand 2001
Date of publication: December 2002

This report covers the first year when microbiological quality was assessed using the Drinking-Water Standards for New Zealand: 2000 (DWSNZ:2000). The New Zealand drinking-water standards are updated periodically to keep in step with scientific advances and contemporary issues and practices within the water industry.

The information on the microbiological quality of drinking-water was obtained through public health units of the district health boards (DHBs) using questionnaires that sought data concerning surveillance and monitoring programmes carried out by DHBs and water suppliers respectively.

Water suppliers fall into two groups: local authorities, including commercial water supply companies contracted by local authorities, and private organisations or communities responsible for the operation of their own drinking-water supplies.

The survey sought information about both distribution zones and water treatment plants. In addition to microbiological quality information, the questionnaire sought information about the water treatment processes in use and the means used to demonstrate compliance with the DWSNZ:2000.

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Appendices 1 -3

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Appendices 4 part 2 - 7

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Appendices 8-9

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