Design and Installation


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Design and Installation

It is vital that on-site wastewater management systems are designed, installed and managed to reflect the nature of the site conditions and constraints associated with the property and dwelling. If they do not, domestic wastewater will not be treated or contained on site and the discharge will result in adverse effects off site.

Please note that the Council’s Guidelines document for on-site wastewater management systems is currently under review. It is recommended to refer to AS/NZS 1547:2012 and TP58 when designing new on-site wastewater systems and assessing existing wastewater systems.

Site and Soil Evaluation

Site and soil evaluations are required to be undertaken as part of the process of designing new on-site systems, and assessing existing systems. The evaluation enables any constraints to effective on-site servicing to be identified and ensures that the on-site system is appropriate to the site conditions.

Site and soil evaluations must be completed by accredited evaluators.

The persons who have met the requirements to become accredited site and soil evaluators are listed below.

List of Accredited Site and Soil Evaluators as at 23 February 2021

Name Company Town
Stephen Whyte CGW Consulting Engineers Nelson
Geoff Knowler Cameron Gibson and Wells Limited Nelson
Ross Davis Davidson Group Limited Blenheim
Leigh McGlynn Davidson Group Limited Blenheim
Ron Findlater Findlater Construction Blenheim
Ron O’Hara Tasman Consulting Engineers Nelson
Graham Kerrigan Kerrigan Engineers Limited Blenheim
Paul Wopereis MWH New Zealand Limited Nelson
Juliet Westbury MWH New Zealand Limited Nelson
John Cocks MWH New Zealand Limited Dunedin
Bill Noell Pattle Delamore Partners Limited Christchurch
Jonathan Thorpe Opus International Consultants Limited Nelson
Richard Evans Smart Alliances Limited Blenheim
Nick Meeten Smart Alliances Limited Blenheim
Jeff Swanney Swanney Geotechnical and Civil Engineering Nelson
Andrew Dakers Eco Eng Limited Christchurch
Dave Dravitski Opus International Consultants Limited Rotorua
Ari Fon Affirm NZ Limited Nelson
Andrew Palmer TerraFirma Engineering Limited Mapua
Khalid Suleiman Seng Engineering Consultancy Blenheim
John Higginbotham Nelson Consulting Engineers Limited Nelson
Anthony Chaney Nelson Consulting Engineers Limited Nelson
Mark Davies Sustainable Environmental Engineering Limited Picton
Mark Rounce Rounce Project Solutions Nelson
Jeremy Harnett Smart Alliances Limited Kaikoura
Mike Copeland Kiwi Pioneer Westport
Matt Harris Davis Ogilvie and Partners Christchurch
Hazel Pearson Wastewater Design Limited Takaka
Richard Lamb Wastewater Design Limited Takaka
Gary Stevens GS Consulting (2004) Limited Richmond
Craig Brown CBC Wastewater Waiheke Island
David Carlson-McColl Envirolink Limited Nelson
Alan Anderson Wairau Environmental Limited Blenheim
Tony Crosbie Lodestone (NZ) Limited Richmond
Jason Morgan Wright Tanks Limited Palmerston North
Timothy Sikma CGW Consulting Engineers Wanaka
Marc Jensen TM Consultants Christchurch
Tyrell Hayes Smart Alliances Limited Blenheim
Matt Riddell Ecogent Limited Auckland
Summer Denize WSP Blenheim
Shane O’Hagan O’Hagan Contracting Palmerston North
Dave Kerr CGW Consulting Engineers Wellington