Water Nitrate

AUS-TDG-CON-WNI General High confidence

Benchmark Value

0.04 mg/L
Direction: Lower is desirable ↓
Form: Point

Scoring Curve

Scoring curve unavailable

The scoring engine could not generate a curve for this benchmark context. The primary form is Point, 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.

Evidence & Context

Oxidised nitrogen NOx‐N | 40

Metric Definition:

Concentration of dissolved oxidized nitrogen in micrograms per litre as Nitrogen, representing the default regional reference trigger value.

Benchmark Definition:

Applied as the default screening criterion by state environmental regulators for slightly disturbed and high-conservation aquatic systems.

Justification:

Applied as the default screening criterion by state environmental regulators for slightly disturbed and high-conservation aquatic systems.

Sources (1)

Preview of Victorian Water Quality Analysis 2022 – Summary Report, accessed August 10, 2025,
Victorian Water Quality Analysis 2022 – Summary Report, accessed August 10, 2025, Journal

20241104_Devon_Meadows_groundwater-investigation

View Source

Supporting Sources (3)

Additional references from the underlying research that informed this benchmark.

Preview of Discharge Characterisation and Water Pollution Impact Assessment
Discharge Characterisation and Water Pollution Impact Assessment
Direct Evidence Journal

Discharge Characterisation and Water Pollution Impact Assessment

View Source
Preview of Environmental values, flow-related issues and objectives for the Canning River
Environmental values, flow-related issues and objectives for the Canning River
Direct Evidence Journal

Environmental values, flow-related issues and objectives for the Canning River

View Source
Preview of Nathan Dam and Pipelines AEIS Part B 16 Surface Water Quality
Nathan Dam and Pipelines AEIS Part B 16 Surface Water Quality
Direct Evidence Journal

Nathan Dam and Pipelines AEIS Part B 16 Surface Water Quality

View Source

Context

  • Region Australia
  • Biome Temperate Dry Woodlands & Native Grasslands
  • Land Use Conservation / Protected Natural Areas
  • Assessment Pristine Reference
  • Evidence Type ReferenceCondition

Lifecycle

  • Status Active
  • Version 2
  • Effective From 21 Jun 2026

Notes

The conversion from micrograms per litre to milligrams per litre uses a standard scaling factor of 0.001.

Related Benchmarks

Other benchmarks in the AUS-TDG-CON-WNI family.

0.15 mg/L High
Conservation / Protected Natural Areas · Pristine Reference · Woodland
Point Active v1
60 μg/L High
Conservation / Protected Natural Areas · Conservation Target · Woodland
MaximumOnly Active v1
10 μg/L High
Conservation / Protected Natural Areas · Conservation Target · Woodland
MaximumOnly Active v1
2.4 mg/L High
Conservation / Protected Natural Areas · Conservation Target
MaximumOnly Active v1
0.04 mg/L High
Conservation / Protected Natural Areas · Pristine Reference
Point Superseded v1