Trenches & Boarholes

Conventional Soakage Trench Soakage trenches are much the same as soakage beds, however they are no more than 0.5m wide.

There are a few variations to these, such as sand trenches and deep trenches. Conventional soakage trenches are not so commonly used and depend on council regulations as to their use. If you’re unsure, then get in touch with us early on in your project and we can help you.

Raised Mounds Similar in principle to ETS beds, these are built up and constructed above ground rather than being dug in. Their purpose is to minimise the possibility of groundwater contamination.

Raised mounds are ideal if there is an elevated water table or a flood prone area, where it is necessary to lift the height of the discharge.

Boreholes  Deep bore holes are typically 0.6m in diameter and 6.0m deep, the number of holes is determined by a four-hour soakage test. The boreholes have a discharge pipe down the centre and are filled with coarse aggregate.

Since these require resource consent and aren’t a permitted activity under any council in New Zealand, boreholes are only used on small sites with very limited options for discharge.

We're here to help, get in touch with us to Get a Free Site Assessment as early into your project as you can, and we can recommend the best land application system for your site or property.

WaterFlow NZ Ltd.

Home

Call WaterFlow NZ Ltd.

Call Us

Get a free site assessment

Free Site Assessment