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Sewage problems solved
Subdivisions

A subdivision can be from one section to over 100 sections and each situation has its own particular requirements.  On small subdivisions individual on-site systems (either primary or advanced septic tank systems) or secondary treatment systems, discharging the effluent from each household onto each lot, may be the most appropriate and cost efficient. 

For larger subdivisions single lot treatment and disposal is still an option however a community (or cluster) system may be more cost efficient and make Resource Consent easier to obtain.  All the variables, section size, ground conditions, percolation rates, ground slope etc, must be considered before a decision is made.

A feasibility study by an experienced, independent professional is most important to ensure the most cost efficient sewage system process and layout is selected.

Bay Homes - Bayview, Napier
Site:
 Bayview Napier
Wastewater Volume:
 16,000 litres
Wastewater Design:

When Bay Homes lodged an application to subdivide 14 sections on the Bayview foreshore there were a number of objections, including both the Hawkes Bay Regional and Napier City Councils.
As the area is unsewered, sewage disposal was a major concern.
Dave was approached to investigate sewage treatment options to fully treat the household sewage and address the Council objections.
Dave recommended each section have a recirculating textile Packed Bed Reactor (rtPBR) to treat the sewage to an advanced stage (BOD:TSS of 10:10 or better) and as a result of this recommendation the Hawkes Bay Regional Council withdrew its objection to the subdivision. After a short hearing the subdivision was approved.

Syme Subdivision - Hiwinui, Manawatu
Site:
 Hiwinui, Manawatu
Wastewater Volume:
 8,000 litres per day
Wastewater Design:

Dave was approached by the owners when their subdivision attracted a number of local objections which threatened District Council approval. Dave was quickly able to assure the owners the objections were groundless and provided an overview of sewage options for the subdivision.
Dave also appeared for the owners at the objections hearing with the Council ruling in favour of the subdivision. One of the objectors was so impressed with the evidence, that they engaged him to upgrade their own property's wastewater system.
Herbertville Golf Club
Site:
 Seaview Road - Herbertville
Wastewater Volume:
 18,000 litres per day
Wastewater

When an existing subdivision plan dating from the 1890s for 18 x quarter-acre sections was reactivated there were a number of issues to address in light of current subdivisional requirements.
Dave was engaged by a Consulting Engineer acting for the golf club to investigate sewage disposal options. Although the subdivision was near the beach front the ground was category 5 and required a specific engineering design.
Holiday homes present the added problem of intermittent and peak load usage, often well in excess of the standard occupancy parameters.
Dave recommended a textile filter treatment plant for each house with trickle irrigation disposal into the topsoil at the rear of the section. This recommendation was accepted by the Tararua District Council and this treatment process is now a requirement for all houses in the subdivision

DAVE MILLER
Environmental Engineer
(Registered Designer - DANZ)
 

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