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

Stephen Whyte	CGW Consulting Engineers	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
Bill Noell	Pattle Delamore Partners Limited	Tauranga
Richard Evans	Smart Alliances Limited	Blenheim
Jeff Swanney	Swanney Geotechnical and Civil Engineering	Nelson
Andrew Palmer	TerraFirma Engineering Limited	Mapua
Khalid Suleiman	Seng Engineering Consultancy	Blenheim
John Higginbotham	Nelson Consulting Engineers Limited	Nelson
Mark Rounce	Rounce Project Solutions	Nelson
Jeremy Harnett	J D Harnett Consulting	Wellington
Hazel Pearson	Waterwork.NZ	Takaka
Richard Lamb	Waterwork.NZ	Takaka
Gary Stevens	GS Consulting (2004) Limited	Richmond
Craig Brown	CBC Wastewater Limited	Waiheke Island
Alan Anderson	WSP	Blenheim
Jason Morgan	Wright Tanks Limited	Palmerston North
Marc Jensen	TM Consultants	Christchurch
Tyrell Hayes	WSP	Wellington
Shane O’Hagan	O’Hagan Contracting	Palmerston North
Niel Smith	Engco	Nelson
Michael Greeff	WSP	Nelson
Michael Tan	Wright Tanks Limited	Palmerston North
Blair Spooner	Smart Alliances Limited	Blenheim
Amos Mahyambe	Smart Alliances Limited	Blenheim
Jack Yang	Smart Alliances Limited	Blenheim
John Jones	Ride Line Consulting	Blenheim
Diego Rafael Zapata	Smart Alliances Limited	Blenheim
Andrew Chen	Fraser Thomas	Auckland
Kenneth Leach	Findlater Construction	Blenheim
Nathan Edwards		Blenheim
Matt Riddell	Waterflow NZ Limited	Auckland
Sandra Sabath	Waterflow NZ Limited	Auckland
Sandy Ormiston	Ormiston Associates Limited	Auckland

Design and Installation

Site and Soil Evaluation

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