A huge thank you to all NIWA and NRC staff that have contributed to the Northland RWQMN programme over the last ten years, including water quality monitoring, laboratory, hydrology and administrative support staff.

Also thank you to the following organisations/people, who have been instrumental in the completion of this report: NIWA and Graeme Bryers for supplying the National River Water Quality Network data for Northland, Mike Scarsbrook, Graham McBride and Bill Vant for their advice on the statistical analysis and from NRC; Stephanie Kane for assisting with data preparation; Riaan Elliot, Treena Davidson and Stuart Savill for peer reviewing and Lesley Webb for proof reading this report.