A review of river microbial water quality data in the Northland region

The report is a review of the microbiological water water data collected over the last 20 years by the Northland Regional Council (NRC). The data was reviewed to identify the current state of microbial water quality in the region and where possible identify key sources and issues. We then provided advice on the best mitigation options that could be adopted in policy by NRC for their limit setting process.