NSW's wettest coastal corner: high-rainfall roof-catchment tanks on the hinterland, acid-sulfate-affected shallow bores on the floodplain, and post-2022-flood contamination that still shows up in test panels today.
Border-coast franchise territory spanning the Tweed and Byron catchments — from Tweed Heads and Kingscliff south to Byron Bay and Mullumbimby. Mail-out kits and local sample handling.
Big country, big contrasts: Murrumbidgee irrigation-area bores that can push nitrate and salinity, Southern Tablelands rainwater tanks and basalt bores, and blue-green algae watch across the summer river systems.
Gosford, Wyong and the coastal lakes: Central Coast Council mains supply for the majority, plus tank-and-bore properties across the Mangrove Mountain plateau and rural fringe.
Cold-climate high country west of the Blue Mountains: granite-belt bores around Bathurst, rich basalt soils and orchard bores under Mount Canobolas, Fish River scheme towns, and frost-country rainwater tanks that sit for months between refills.