Water Electrical Conductivity (EC)

AUS-TMI-FOR-WEC General Moderate confidence

Benchmark Value

No specific value — see range

Range: 120 to 400 µS/cm

Optimal Range: 120 to 400

Direction: Lower is desirable ↓

Form: OptimalRange

Scoring Curve

Scoring curve unavailable

The scoring engine could not generate a curve for this benchmark context. The primary form is CompositeFramework, but the benchmark data may be missing required fields (e.g., optimal range bounds for an OptimalRange benchmark). This is typically a data quality issue in the benchmark pipeline.

Contributing Benchmarks

CompositeFramework Primary OptimalRange Guard MaximumOnly Guard MaximumOnly Guard OptimalRange Guard MaximumOnly Guard OptimalRange Guard OptimalRange Guard MaximumOnly Guard MinimumOnly Guard MaximumOnly Guard OptimalRange Guard

Evidence & Context

This analysis proposes an optimal range of 120 – 400 µS/cm for a high-health production forestry system on a tropical maritime island.

Metric Definition:

Optimal electrical conductivity (EC) range for high environmental health in production forestry on tropical maritime islands.

Benchmark Definition:

This benchmark defines the proposed optimal electrical conductivity range reflecting minimal anthropogenic impact and high environmental health under best-practice production forestry management in tropical maritime islands.

Justification:

Reflects a state of minimal soil and solute loss expected from well-designed forestry operations adhering to best management practices.

Sources (1)

ANZECC & ARMCANZ (2000) guidelines - Water Quality Australia, accessed August 12, 2025 Government

ANZECC & ARMCANZ (2000) guidelines - Water Quality Australia

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Supporting Sources (4)

Additional references from the underlying research that informed this benchmark.

Preview of Investigating the potential for groundwater from different vegetation, soil and landuses to stimulate blooms of the cyanobacterium, Lyngbya majuscula, in coastal waters - CSIRO PUBLISHING | Marine and Freshwater Research

Investigating the potential for groundwater from different vegetation, soil and landuses to stimulate blooms of the cyanobacterium, Lyngbya majuscula, in coastal waters - CSIRO PUBLISHING | Marine and Freshwater Research

Contextual Support Journal

Taking stock. Which way from here? - Norfolk Island's Reef, accessed July 27, 2025

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Norfolk Island Water Resource Assessment

Contextual Support Journal

Norfolk Island Water Resource Assessment

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The most beautiful Australian islands - Tourism Australia, accessed August 2, 2025,

Contextual Support

The most beautiful Australian islands - Tourism Australia, accessed August 4, 2025,

View Source

The relationship between groundwater and surface water character and wetland habitats, Bribie Island, Queensland - ResearchGate

Contextual Support Journal

The relationship between groundwater and surface water character and wetland habitats, Bribie Island, Queensland - ResearchGate

View Source

Context

Region Australia
Biome Tropical & Subtropical Maritime Islands
Land Use Production Forestry
Assessment Not Stated
Evidence Type ReferenceCondition

Lifecycle

Status Active
Version 2
Effective From 5 Jun 2026

Notes

The optimal range is the lower portion of the broader acceptable guideline range, indicating minimal anthropogenic impact and high ecological health. It is consistent with observed values in less-disturbed coastal river systems. AssessmentContext defaulted to 'Not Stated' because the source document did not state one.

Related Benchmarks

Other benchmarks in the AUS-TMI-FOR-WEC family.