13.5 References

Gibson, P. K. 1992. Concentration of Boron in Soils Around Drill Pads in the Ngawha Geothermal Field, Northland, New Zealand. Proceedings of the 14th New Zealand Geothermal Workshop 1992.

Kingett Mitchell. 2003. Ngawha Geothermal Power Project Vol. 1 Resource Consent Applications and Assessment of Environmental Effects, September 2003. Prepared by Kingett Mitchell Ltd for Top Energy Ltd. (Supporting information document for Consent Renewal and Expansion applications 20030488201-10 and 20030488301-22).

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 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. 2004. Staff Report for consent applications 20030488201-10. Prepared as part of consent process by Northland Regional Council.

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/

NZE. 1998 to present. Ngawha Geothermal Power Project 6-Monthly Environmental Monitoring Reports. Prepared for Ngawha Geothermal Resource Company Ltd by New Zealand Environmental Ltd (NZE)

NZE. 2007a Ngawha Geothermal Power Station Pond Management Plan. Prepared for Ngawha Geothermal Resource Company Ltd by New Zealand Environmental Ltd. (NZE).

NZE. 2007b Ngawha Geothermal Power Station Environmental Monitoring Programme. Prepared for Ngawha Geothermal Resource Company Ltd by NZ Environmental Ltd.

Scott, T. M., Mitchell, Dr. N., Glover, Dr. R. B., and Rosen, Dr. M. 1998. Pre-commissioning Environmental Monitoring Period 1 August 1996 - 31 March 1998, Volume 1. Tai Tokerau Maori Trust Board & Top Energy Ltd.

Sheppard, D. S. and Johnston, J. R, 1984. Ngawha Hot Springs; Results of a Chemical Monitoring Programme. DSIR Chemistry Division.

Silvester, W. B. 1999. Report on the effects of release of geothermal waters into vegetation at Ngawha. Department of Biological Sciences, University of Waikato.

Thain, I. A. 1985. Status Report on the Existing and Planned Utilisation of Geothermal Energy in New Zealand.