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 9 benchmarks together — the OptimalRange form drives the primary score, while 8 guard(s) constrain the result.
Evidence & Context
The value of 1,140 µS/cm (rounded from 1,141 µS/cm) is therefore proposed as the benchmark.
Water Electrical Conductivity (EC)
Water Electrical Conductivity (EC) measures the dissolved salts in water, with 1,140 µS/cm representing a high-quality condition in groundwater-fed arid upland refugia in Australia.
The selection of 1,140 µS/cm as the reference value is based on a process of elimination of inappropriate frameworks and the identification of the most relevant, evidence-based data source. It represents a measured condition of a high-quality, real-world system, reflecting the natural salinity of groundwater-fed refugia in arid uplands.
Sources (1)
Variation of water quality parameters with location in the two known habitats of Mogurnda clivicola (Flinders Ranges Mogurnda) and the implications for the ongoing viability of those habitats
View SourceSupporting Sources (4)
Additional references from the underlying research that informed this benchmark.
(PDF) Effects of increasing salinity on freshwater ecosystems in ...
View SourceANZECC & ARMCANZ (2000) guidelines - Water Quality Australia
View Source
Water Quality and the Grazing Animal - UNL Digital Commons
View SourceTop 10 Strategies for Efficient Water Management on Your Farm - SONIC Natural Farming, accessed July 19, 2025,
View Source