Close, M. E., Lee, R., Magesan, G. N., Stewart, M. K., Skuse, G. and Bekesi, G. 2004. Field study of pesticide leaching in a Himatangi sand (Manawatu) and in a Kiripaka bouldery loam (Northland) 1 Results. Australian Journal of Soil Research, 2005, 43: 457-469.

Daughney, C.J. and Reeves, R.R. 2005. Definition of hydrochemical facies in the New Zealand National Groundwater Monitoring Programme. Journal of Hydrology (NZ) 44 (2): 105-130.

Daughney, C.J. and Reeves, R.R. 2006. Analysis of temporal trends in New Zealand's groundwater quality based on data from the National Groundwater Monitoring Programme. Journal of Hydrology (NZ) 45 (1): 41-62.

MfE. 2007. Groundwater Quality in New Zealand State and Trends 1995 – 2006. Report published by the Ministry for the Environment. Wellington: New Zealand. Available on the Ministry for the Environment's website at the following link:

http://www.mfe.govt.nz/publications/ser/groundwater-quality-trends-aug07/

MoH 2005. Drinking water standards for New Zealand 2005. Published by the Ministry of Health. Wellington: New Zealand.

NRC. 2002. Regional Policy Statement for Northland. Produced by the Northland Regional Council. Whangarei: New Zealand. Latest version available on the Regional Council's website at the following link:

http://www.nrc.govt.nz/Resource-Library-Summary/Plans-and-Policies/Regional-Policy-Statement/Regional-Policy-Statement/

NRC. 2002b. State of the Environment Report. Published by Northland Regional Council. Whangarei: New Zealand. Available on the Regional Council's website at the following link:

http://www.nrc.govt.nz/Resource-Library-Summary/Environmental-Monitoring/State-of-the-Environment-Monitoring/2002-State-of-the-Environment-Report/

NRC. 2007. Regional Water and Soil Plan for Northland. Produced by the Northland Regional Council. Whangarei: New Zealand. Latest version and current plan changes are available on the Regional Council's website at the following link:

http://www.nrc.govt.nz/Resource-Library-Summary/Plans-and-Policies/Regional-plans/Regional-Water-and-Soil-Plan/

Note: All aquifer investigation reports are available on the Regional Council website at the following link:

http://www.nrc.govt.nz/Resource-Library-Summary/Research-and-reports/Groundwater/