Water Electrical Conductivity (EC)
Benchmark Value
Scoring Curve
This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 2 benchmarks together — the MaximumOnly form drives the primary score, while 1 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
Based on this synthesis, a benchmark of < 300 µS/cm is proposed as the best available condition for urban streams in this biome.
Electrical Conductivity (EC) is a fundamental measure of water quality, quantifying the ability of water to conduct an electrical current.
This benchmark represents the best available electrical conductivity condition achievable in urban streams of the Tropical & Subtropical Rainforests biome in Australia, reflecting best-practice water sensitive urban design.
This value is based on applying a realistic impact factor to the 80th percentile of the pristine reference condition (20-111 µS/cm) and sits well below the Bureau of Meteorology's 'high quality' threshold of 400 µS/cm.
Sources (1)
What Is The Typical Water Conductivity Range? - Atlas Scientific, accessed July 13, 2025
View SourceSupporting Sources (1)
Additional references from the underlying research that informed this benchmark.
Requirements for graziers | Environment, land and water ..., accessed July 19, 2025,
View Source