Inverell Water Hardness & Quality Report (2026)

Inverell's drinking water is supplied by Inverell Shire Council, drawing from Copeton Dam on the Gwydir River catchment in the New England Northern Tablelands for the Inverell Shire LGA regional town in north-western New South Wales. Water hardness in Inverell is measured at 88.5 mg/L — classified as slightly hard — within the Australian Drinking Water Guidelines (ADWG) aesthetic guideline of 200 mg/L published by NHMRC. Inverell — a prosperous regional town in the New England Northern Tablelands known as the 'Sapphire City' for its gem mining heritage, home to the Copeton Dam State Recreation Area, the Inverell Pioneer Village museum, the Gwydir Highway service industry, and the thriving Northern Tablelands agricultural community — receives slightly elevated supply from the Copeton Dam Gwydir River catchment system.

Inverell's slightly elevated hardness reflects the moderately soft Gwydir River catchment character at Copeton Dam in the Northern Tablelands. The Copeton Dam catchment drains the New England Tableland — granitic and metamorphic uplands of the New England Batholith and Permian volcanic sequences (Moonbi Ranges) — contributing moderate dissolved minerals from the complex geology of the northern NSW highlands. The Inverell Northern Tablelands distribution at 88.5 mg/L and TDS 168.7 mg/L reflects the slightly elevated mineralisation characteristic of the mixed geological highland catchment of the northern NSW New England plateau.

Inverell residents can expect occasional moderate limescale on taps and in kettles — descaling every two to three months is typically adequate. Hot water systems accumulate modest scale. The low lead reading (0.003 mg/L) is good. Inverell Shire Council provides water quality information, with all ADWG health standards consistently met. Inverell's Sapphire City community and the Copeton Dam recreation area benefit from a safe supply meeting all ADWG standards.