Water Electrical Conductivity (EC)

AUS-AKW-AGR-WEC General Moderate confidence

Benchmark Value

No specific value — see range
Range: 1500 to 6300 µS/cm
Optimal Range: 1500 to 6300
Direction: Lower is desirable ↓
Form: OptimalRange

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 OptimalRange form drives the primary score, while 1 guard(s) constrain the result.

Evidence & Context

Indicative EC Values: Northern Zone: 1,500 – 6,300 00μS/cm

Metric Definition:

Water electrical conductivity (EC)

Benchmark Definition:

In the Northern Zone of the Arid Karstic Woodlands & Shrublands, water electrical conductivity between 1,500 and 6,300 µS/cm indicates a system under active pastoral use with low ecological impact and sustainable function.

Justification:

Water quality is suitable for productive pastoralism without causing significant land degradation; upper limit defined by production decline for common livestock.

Sources (6)

Preview of An inventory and condition survey of the Western Australian part of the Nullarbor region - DPIRD's Digital library, accessed July 25, 2025
An inventory and condition survey of the Western Australian part of the Nullarbor region - DPIRD's Digital library, accessed July 25, 2025 Government

South Australia - Soil Science Australia

View Source
Preview of Ecosystem Processes – Environmental Data Collection Methods - TERN Australia
Ecosystem Processes – Environmental Data Collection Methods - TERN Australia Government

Ecosystem Processes – Environmental Data Collection Methods - TERN Australia, accessed July 17, 2025

View Source
Preview of Nullarbor Karst - The Western Australian Speleological Group, accessed July 26, 2025,
Nullarbor Karst - The Western Australian Speleological Group, accessed July 26, 2025, GreyLiterature

Nullarbor Plain - A biography of the Australian continent

View Source
Preview of Nullarbor Plain - Wikipedia, accessed July 25, 2025,
Nullarbor Plain - Wikipedia, accessed July 25, 2025, GreyLiterature

Nullarbor Plain - Wikipedia, accessed July 24, 2025

View Source
Preview of TERN - Australia's Terrestrial Ecosystem Research Network, accessed July 30, 2025,
TERN - Australia's Terrestrial Ecosystem Research Network, accessed July 30, 2025, Government

Australia's State of the Forests Report 2018 - DAFF, accessed July 31, 2025,

View Source
Preview of Water Quality for Livestock - Sheep Connect SA
Water Quality for Livestock - Sheep Connect SA

Water Quality for Livestock - Sheep Connect SA

View Source

Context

  • Region Australia
  • Biome Arid Karstic Woodlands & Shrublands
  • Land Use Agricultural Crop Production
  • Assessment Not Stated
  • Evidence Type HealthyOperationalRange

Lifecycle

  • Status Active
  • Version 1
  • Effective From 4 Jun 2026

Notes

Tier 2: Good Condition (Sustainable Use) AssessmentContext defaulted to 'Not Stated' because the source document did not state one.