Water Quality and Testing Procedure
AES water quality and testing procedure on Youtube

New Zealand Standards

NZ AS/NZ 1547: 2012 On-site domestic Wastewater Management (many local authorities are still using the 2000 version)

Auckland Council (formerly Auckland Regional Council) TP 58 (Technical Publication 58)

On-Site Wastewater Systems Design and Management
One Plan Manual for On-site Wastewater Systems Design and Management, produced by Horizons Regional Council

Septic Tanks
Lanfax Labs re Septic Tanks 

US Developer & Manufacturer – Presby Environmental

 Harvey Tanks – Septic Tanks

N2P Controls

Enquiry Form
In order to assist you make a decision about your Wastewater Treatment system, we ask several questions below related to the property and its use. This information is required to design an onsite treatment system that complies with National Regulations (NZS1547) and Local Council Requirements, which vary by region. AES systems are designed individually to meet specific client and site needs. Please provide as much information as you know so we can provide you quickly with relevant information.

If you would prefer to discuss it via a phone call, please provide your phone number and in the Comments box at the bottom, a convenient time for us to call you. Or alternatively you can send us an email on

Please be assured that we keep your information secure and do not use it for any other purposes.

Your First Name (required)

Your Last Name (required)

Are you a  Property owner Designer Installer Council Officer Other

Where which Region is the site located? (required)

Type of Use  Residential Commercial Community Other

New or Refit  New Refit
If Refit, is there an existing septic tank?  Yes No
If there is an existing septic tank, does it need replacing?  Yes No Don't Know

Do you require an indicative price for an AES system for your project?  Yes No

Size of project  1 bedroom 2 bedrooms 3 bedrooms 4 bedrooms 5 bedrooms 6 bedrooms more than 6 bedrooms, or commercial facility
No of people using commercial facility

Water Supply Source  roof water collection bore or well reticulated or creek water other

Site Information

What is the Soil Type?  Very free draining (sand/gravel) Free draining loam Moderately draining eg light clay Poorly draining eg heavy clay Don’t Know

Slope of Site  Flat Gentle (5 degree slope) Medium (20 degree slope) Steep (more than 20 degree slope)

Size of property

Water Table Level [multiple choice]  Low Medium High Near water source, eg ocean, lake, river Don't Know

Any Other Requirements  Do you want to use the treated water for Irrigation Do you want to reduce Faecal Coliforms ie UV Sterilisation of the treated effluent

Where did you hear about AES / Environment Technology (multiple choice)
 Internet Search Google ad click Direct to the Environment Technology website Brochure Word of Mouth, who Trade Show OtherDescribe Other

Timing on your Project  Immediate This year Next year Beyond next year Just enquiring

Would you like to know the AES wastewater system Designers or Installers in your area?  Designer Installer

Contact Details

Your Email (required)

Your Phone