Water Turbidity

AUS-TMI-FOR-WTU General Moderate confidence

Benchmark Value

5 NTU
Range: — to 5 NTU
Thresholds: Lower: —, Upper: 30
Optimal Range: — to 5
Direction: Lower is desirable ↓
Form: MaximumOnly

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 MaximumOnly Guard MaximumOnly Guard

Evidence & Context

The proposed benchmark for water turbidity in a best-practice production forestry context within Australia's Tropical & Subtropical Maritime Islands biome is a median baseflow turbidity of ≤ 5 NTU.

Metric Definition:

Water turbidity measured as median baseflow turbidity in surface waters.

Benchmark Definition:

Median baseflow turbidity as a measure of water clarity in production forestry streams within Australia's Tropical & Subtropical Maritime Islands biome.

Justification:

This value represents an ambitious but achievable state of high ecological health, derived by triangulating evidence from national guidelines, aspirational targets from well-managed forest catchments, and high-quality water standards.

Sources (1)

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Turbidity in Surface Water 14 Rehabilitation Standard for the Ranger uranium mine - DCCEEW, accessed August 1, 2025,

Turbidity in Surface Water 14 Rehabilitation Standard for the Ranger uranium mine - DCCEEW, accessed August 1, 2025,

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Supporting Sources (36)

Additional references from the underlying research that informed this benchmark.

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A Compendium of Ecological Information on Australia's Northern Tropical Rivers - Report 5 - Water quality - DCCEEW, accessed August 1, 2025,
Contextual Support Journal

Threshold Indicator Taxa ANalysis and change points (dots) for the ...

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Preview of Acacia mangium (brown salwood) | CABI Compendium, accessed August 1, 2025,
Acacia mangium (brown salwood) | CABI Compendium, accessed August 1, 2025,
Contextual Support Irrelevant

Acacia mangium (brown salwood) | CABI Compendium, accessed July 30, 2025

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Acacia mangium | ECHOcommunity.org, accessed August 1, 2025,
Contextual Support GreyLiterature

Acacia mangium | ECHOcommunity.org, accessed August 1, 2025,

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An Examination of Stream Water Quality Data from Monitoring of Forest Harvesting in the Eastern Highlands of Victoria - MDPI, accessed August 1, 2025,
Contextual Support Direct Evidence Journal

An Examination of Stream Water Quality Data from Monitoring of Forest Harvesting in the Eastern Highlands of Victoria

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assessment report 29 - NTEPA - Northern Territory Government, accessed August 1, 2025,
Contextual Support

Untitled - NTEPA - Northern Territory Government, accessed July 30, 2025

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Preview of Australia's State of the Forests Report 2013 - Criterion 4 Conservation and maintenance of soil and water resources, accessed August 1, 2025,
Australia's State of the Forests Report 2013 - Criterion 4 Conservation and maintenance of soil and water resources, accessed August 1, 2025,
Contextual Support

Australia's State of the Forests Report 2013 - Criterion 4 ..., accessed on June 7, 2025,

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Preview of Australia's State of the Forests Report 2018 13 Criterion 4 - DAFF, accessed August 1, 2025,
Australia's State of the Forests Report 2018 13 Criterion 4 - DAFF, accessed August 1, 2025,
Contextual Support Journal

Victoria's State of the Forests Report 2013, accessed March 28, 2026,

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Preview of BIODIVERSITY CONSERVATION ON THE TIWI ISLANDS, NORTHERN TERRITORY: Part 3. Management and planning for biodi, accessed August 1, 2025,
BIODIVERSITY CONSERVATION ON THE TIWI ISLANDS, NORTHERN TERRITORY: Part 3. Management and planning for biodi, accessed August 1, 2025,
Contextual Support Journal

BIODIVERSITY CONSERVATION ON THE TIWI ISLANDS, NORTHERN TERRITORY: Part 3. Management and planning for biodi, accessed July 30, 2025

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Preview of Criterion 4: Conservation and maintenance of soil and water resources - DAFF, accessed August 1, 2025,
Criterion 4: Conservation and maintenance of soil and water resources - DAFF, accessed August 1, 2025,
Contextual Support

Criterion 4: Conservation and maintenance of soil and water resources - DAFF, accessed July 20, 2025

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Preview of Ecological Impact of Planting Indigenous Plants Instead of Exotic Acacia Trees in Anchal - IRJET, accessed August 1, 2025,
Ecological Impact of Planting Indigenous Plants Instead of Exotic Acacia Trees in Anchal - IRJET, accessed August 1, 2025,
Contextual Support Journal

Ecological Impact of Planting Indigenous Plants Instead of Exotic Acacia Trees in Anchal - IRJET, accessed August 1, 2025,

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Preview of Effect of Acacia mangium Canopy on Physicochemical Characteristics and Nutrient Concentrations of the Soil at Ayer Hitam Forest Reserve, Malaysia - MDPI, accessed August 1, 2025,
Effect of Acacia mangium Canopy on Physicochemical Characteristics and Nutrient Concentrations of the Soil at Ayer Hitam Forest Reserve, Malaysia - MDPI, accessed August 1, 2025,
Contextual Support

Effect of Acacia mangium Canopy on Physicochemical Characteristics and Nutrient Concentrations of the Soil at Ayer Hitam Forest Reserve, Malaysia - MDPI, accessed August 1, 2025,

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Preview of Effects of Water Deficiency on Plants of Acacia mangium Willd - ResearchGate, accessed August 1, 2025,
Effects of Water Deficiency on Plants of Acacia mangium Willd - ResearchGate, accessed August 1, 2025,
Contextual Support

Effects of Water Deficiency on Plants of Acacia mangium Willd - ResearchGate, accessed August 1, 2025,

View Source
Preview of Forestry | NT.GOV.AU, accessed August 1, 2025,
Forestry | NT.GOV.AU, accessed August 1, 2025,
Contextual Support Irrelevant

Forestry | NT.GOV.AU, accessed August 1, 2025,

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Preview of Guidelines - Water Quality Australia, accessed August 1, 2025,
Guidelines - Water Quality Australia, accessed August 1, 2025,
Contextual Support

Guidelines - Water Quality Australia, accessed August 10, 2025

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Preview of guidelines for sustainable forestry on private lands in nsw - ResearchGate, accessed August 1, 2025,
guidelines for sustainable forestry on private lands in nsw - ResearchGate, accessed August 1, 2025,
Contextual Support

Smith, A. (2019). Guidelines for Sustainable Forestry on Private Lands in NSW.

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Preview of Inquiry into forestry and mining operations on the Tiwi Islands - Parliament of Australia, accessed August 1, 2025,
Inquiry into forestry and mining operations on the Tiwi Islands - Parliament of Australia, accessed August 1, 2025,
Contextual Support Journal

Inquiry into forestry and mining operations on the Tiwi Islands - Parliament of Australia, accessed August 1, 2025,

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Preview of Invasive Acacia Tree Species Affect Instream Litter Decomposition Through Changes in Water Nitrogen Concentration and Litter Characteristics - PubMed, accessed August 1, 2025,
Invasive Acacia Tree Species Affect Instream Litter Decomposition Through Changes in Water Nitrogen Concentration and Litter Characteristics - PubMed, accessed August 1, 2025,
Contextual Support Journal

Invasive Acacia Tree Species Affect Instream Litter Decomposition Through Changes in Water Nitrogen Concentration and Litter Characteristics - PubMed, accessed August 1, 2025,

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Preview of Looking to improve water quality? Plant more trees, accessed August 1, 2025,
Looking to improve water quality? Plant more trees, accessed August 1, 2025,
Contextual Support GreyLiterature

Stream nitrate in planted forests - Scion Research, accessed July 31, 2025,

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Preview of Marine ecosystem impacts - Reef 2050 Water Quality Improvement Plan, accessed August 1, 2025,
Marine ecosystem impacts - Reef 2050 Water Quality Improvement Plan, accessed August 1, 2025,
Contextual Support Journal

TERN: Terrestrial Ecosystem Research Network - The Waite, accessed July 27, 2025,

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Preview of Methods and approaches to support Indigenous water planning: An example from the Tiwi Islands, Northern Territory, Australia - Find an Expert - The University of Melbourne, accessed August 1, 2025,
Methods and approaches to support Indigenous water planning: An example from the Tiwi Islands, Northern Territory, Australia - Find an Expert - The University of Melbourne, accessed August 1, 2025,
Contextual Support

Methods and approaches to support Indigenous water planning: An example from the Tiwi Islands, Northern Territory, Australia - Find an Expert - The University of Melbourne, accessed August 1, 2025,

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Preview of Moisture Distribution in Stems of Acacia mangium, A. auriculiformis and Hybrid Acacia Trees, accessed August 1, 2025,
Moisture Distribution in Stems of Acacia mangium, A. auriculiformis and Hybrid Acacia Trees, accessed August 1, 2025,
Contextual Support Journal

Moisture Distribution in Stems of Acacia mangium, A. auriculiformis and Hybrid Acacia Trees, accessed August 1, 2025,

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Preview of National Guidelines for Water Quality - Department of Natural Resources and Environment Tasmania, accessed August 1, 2025,
National Guidelines for Water Quality - Department of Natural Resources and Environment Tasmania, accessed August 1, 2025,
Contextual Support

Australian and New Zealand Guidelines for Fresh and Marine Water ...

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Plantation Forestry and Economic Development in the Tiwi Islands - IDEAS/RePEc, accessed August 1, 2025,
Contextual Support GreyLiterature

Plantation Forestry and Economic Development in the Tiwi Islands - IDEAS/RePEc, accessed August 1, 2025,

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Plantations in public drinking water source areas - Government of Western Australia, accessed August 1, 2025,
Contextual Support Journal

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Preview of Private Forestry Guidance Materials, accessed August 1, 2025,
Private Forestry Guidance Materials, accessed August 1, 2025,
Contextual Support Journal

Private Forestry Guidance Materials, accessed August 1, 2025,

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Remote sensing in the Kimberley - CSIRO, accessed August 1, 2025,
Contextual Support Methodology Source Government

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Smart water quality monitoring system with cost-effective using IoT - PMC - PubMed Central, accessed August 1, 2025,
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Smart water quality monitoring system with cost-effective using IoT - PMC - PubMed Central, accessed August 1, 2025,

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Tiwi Islands port project needs no environmental risk assessment 13 EPA - The Guardian, accessed August 1, 2025,
Contextual Support

Tiwi Islands port project needs no environmental risk assessment 13 EPA - The Guardian, accessed August 1, 2025,

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TIWI ISLANDS REGIONAL NATURAL RESOURCE MANAGEMENT STRATEGY, accessed August 1, 2025,
Contextual Support Journal

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Tiwi Islands water study - Territory Stories, accessed August 1, 2025,
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Tiwi Islands, accessed August 1, 2025,
Contextual Support Journal

Tiwi Islands, accessed August 1, 2025,

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Water - Transparency Portal, accessed August 1, 2025,
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Water quality for farm water supplies | Managing dams - Agriculture Victoria, accessed August 1, 2025,
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Preview of Water quality guidelines - Queensland Environment Department, accessed August 1, 2025,
Water quality guidelines - Queensland Environment Department, accessed August 1, 2025,
Contextual Support Direct Evidence Government

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Preview of Water quality of surface water environments - NSW Government Water, accessed August 1, 2025,
Water quality of surface water environments - NSW Government Water, accessed August 1, 2025,
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Preview of Water-quality and ecosystem impacts of recreation in streams: Monitoring and management, accessed August 1, 2025,
Water-quality and ecosystem impacts of recreation in streams: Monitoring and management, accessed August 1, 2025,
Contextual Support Direct Evidence Journal

Water-quality and ecosystem impacts of recreation in streams: Monitoring and management, accessed July 18, 2025,

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Context

  • Region Australia
  • Biome Tropical & Subtropical Maritime Islands
  • Land Use Production Forestry
  • Assessment Conservation Target
  • Evidence Type ReferenceCondition

Lifecycle

  • Status Active
  • Version 1
  • Effective From 15 Mar 2026

Notes

Lower turbidity values are better for ecosystem health; an upper detrimental threshold of sustained turbidity ≥ 30 NTU indicates ecological harm.