Mangrove Creek Dam and the Mardi-Mangrove system supply the majority. Historically stable, with wet-season turbidity managed at the plant.
Dominant on the Mangrove Mountain plateau and rural-residential blocks. Coastal aerosols nudge conductivity up on beach-adjacent tanks.
Mangrove Mountain and Somersby plateau bores tap Hawkesbury sandstone — expect iron staining and occasional hardness.
Stock, irrigation and emergency backup on the plateau. Basic Water Safety Check for human-contact use.

Gosford, East Gosford, Woy Woy, Umina Beach. Central Coast Council mains supply from Mangrove Creek Dam; premises-side plumbing issues dominate customer concerns.

Wyong, The Entrance, Toukley, Long Jetty. Council mains supply through the townships; coastal aerosol corrosion on tanked properties.

Mangrove Mountain, Somersby, Kulnura. Rural acreage — rainwater tanks and shallow bores are the norm on plateau blocks.
Physical, chemical, and microbial parameters analysed to ADWG.
Bookings within this region route to a nominated PWS Partner for follow-up quotes on any recommendations.
Outside a partner service area? Post your sample and we'll test it exactly the same way.