Routine servicing, service reports and repairs for aerated wastewater treatment systems on unsewered Central Coast properties.
Get a Quote →If your rural or semi-rural Central Coast property isn't connected to town sewer - common across Somersby, Kulnura, Mangrove Mountain, Jilliby, Yarramalong, Dooralong, Peats Ridge and Calga - you're almost certainly running an Aerated Wastewater Treatment System (AWTS). Under NSW regulations and Central Coast Council's on-site sewage management approval, these systems must be serviced quarterly by a servicing technician, not just whenever something goes wrong.
A service check covers the aerator and blower, disinfection unit (usually chlorine tablets or UV), pump function, alarm system, and irrigation area condition. The technician lodges a service report with council as part of your approval to operate - missing services can put your on-site sewage approval at risk, which matters at sale time as much as day to day.
Mandatory servicing covering aerator, disinfection, pump, alarms and irrigation checks, with council reporting included. Cost per visit depends on your system's brand and how far the technician has to travel.
Consolidated annual report to satisfy your council's on-site sewage management approval conditions, priced by what your council requires.
Aerator, pump and blower replacement when a service reveals a failing component, before it becomes a system failure. Cost depends on which part has failed and your system's brand.
Complete AWTS replacement for systems that have reached end of life, usually 15-20 years old, or that fail beyond economical repair. Cost depends on tank size, site access and how much irrigation field work is needed.
Central Coast Council's water supply page says Mangrove Creek Dam, about 50 km north-west of Gosford, provides 93% of the Central Coast's water storage, and Council also draws water from Ourimbah Creek, Mooney Mooney Creek and the Wyong River. Central Coast DCP 2022 adds that raw water from the Mangrove Catchment goes straight to the Somersby Water Treatment Plant, with no treatment or storage in between.
The DCP's on-site sewage chapter factors drinking water catchments into its rules. Council has given every unsewered lot a High, Medium or Low risk rating, based on site constraints including soil type and depth, slope, distance to surface water and groundwater, and whether the lot sits in a drinking water catchment. The rating sets how detailed a wastewater management report has to be. An unsewered development inside a drinking water catchment must have its report prepared to the High Risk standard, and the DCP names the Mangrove Dam, Mooney Dam, Ourimbah Creek, Mardi Dam and Wyong Creek catchments. Council's Environmental Health Officer can tell you your lot's rating.
Rain adds to the load on an irrigation area. Bureau of Meteorology averages for Norah Head show the wettest months run from March to June, with June averaging 143.8 mm, while September is the driest at 62.1 mm. Norah Head is a coastal station, so hinterland valleys may differ. Effluent irrigated onto already wet ground has less room to soak in, so pooling or odour over the field in those months is worth raising with your servicing contractor.
Covering AWTS owners in Peats Ridge, Calga, Somersby, Kulnura, Mangrove Mountain, Jilliby, Yarramalong and Dooralong. If your property is somewhere else on the Central Coast and not connected to sewer, send an enquiry anyway and include your suburb.
Tell us what you need and where the property is.