State and trends of water quality

Component
Summary
Grade
Very poor Poor Good Very good
Confidence
In Grade In Trend
Comparability
To previous years

Carpentaria Coast

This assessment summary component has changed from 2011.

  • The Gulf of Carpentaria division was renamed the Carpentaria Coast division.

The original 2011 summary, grade, trend and confidence levels have been replicated here to assist comparison of changes between reporting cycles.

 
 
 

No division-scale assessment available. Minimal new development since 2011.

Year(s): 
2016
3
Unclear
Confidence (in grade): 
Low
Confidence (in trend): 
Low
Comparability (to previous reports): 
Somewhat comparable

Topics

Limited water quality data available

Year(s): 
2011
3
Unclear
Confidence (in grade): 
Limited
Confidence (in trend): 
Low
Comparability (to previous reports): 
Not assessed

Topics

Observations generally consistent with sampling period and hydrological conditions

Year(s): 
2016
3
Unclear
Confidence (in grade): 
Limited
Confidence (in trend): 
Low
Comparability (to previous reports): 
Not comparable

Topics

Very limited water quality data available; potential water quality issues around turbiditiy and nutrients arising from grazing and feral pests

Year(s): 
2011
0
Unclear
Confidence (in grade): 
Low
Confidence (in trend): 
Low
Comparability (to previous reports): 
Not assessed

Topics

Recent local improvements in some water quality parameters, against a background of values exceeding guidelines

Year(s): 
2016
1
Improving
Confidence (in grade): 
Somewhat adequate
Confidence (in trend): 
Somewhat adequate
Comparability (to previous reports): 
Somewhat comparable

Topics

Widespread, ongoing and serious issues of sedimentation, anoxia, eutrophication and salinisation

Year(s): 
2011
1
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Not assessed

Topics

Water quality concerns, including nutrients, sediment and pesticides. Significant development of coordinated monitoring and reporting schemes.

 
 
Year(s): 
2016
2
Improving
Confidence (in grade): 
Adequate
Confidence (in trend): 
Adequate
Comparability (to previous reports): 
Somewhat comparable

Topics

Widespread concerns over water quality in rivers, particularly sediment and nitrogen; evidence of improved outcomes of land-use practices in northern and south-eastern catchments

 
 
 
Year(s): 
2011
2
Improving
Confidence (in grade): 
Adequate
Confidence (in trend): 
Adequate
Comparability (to previous reports): 
Not assessed

Topics

Very little water quality data available; no comprehensive assessments available

Year(s): 
2016
0
Unclear
Confidence (in grade): 
Low
Confidence (in trend): 
Low
Comparability (to previous reports): 
Comparable

Topics

Very little water quality data available

Year(s): 
2011
0
Unclear
Confidence (in grade): 
Low
Confidence (in trend): 
Low
Comparability (to previous reports): 
Not assessed

Topics

Pilbara-Gascoyne

This assessment summary component has changed from 2011.

  • The Indian Ocean division was renamed the Pilbara–Gascoyne division.

The original 2011 summary, grade, trend and confidence levels have been replicated here to assist comparison of changes between reporting cycles.

 
 
 

Very little water quality data available; no comprehensive assessments available

Year(s): 
2016
0
Unclear
Confidence (in grade): 
Low
Confidence (in trend): 
Low
Comparability (to previous reports): 
Comparable

Topics

Very little water quality data available

Year(s): 
2011
0
Unclear
Confidence (in grade): 
Low
Confidence (in trend): 
Low
Comparability (to previous reports): 
Not assessed

Topics

Broadscale enriched levels of nutrients and sediment

Year(s): 
2016
2
Unclear
Confidence (in grade): 
Somewhat adequate
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Somewhat comparable

Topics

Ongoing, widespread exceedences of nutrient and suspended solids

 
 
 
Year(s): 
2011
2
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Adequate
Comparability (to previous reports): 
Not assessed

Topics

South-east Coast (NSW)

This assessment summary component has changed from 2011.

  • The South East Coast division was divided into 2 divisions: South East Coast (New South Wales), covering catchments north from Towamba River, and South East Coast (Victoria), covering catchments west from the East Gippsland river region.

The original 2011 summary, grade, trend and confidence levels have been replicated here to assist comparison of changes between reporting cycles.

 
 
 

Widespread exceedance of nutrient guidelines

Year(s): 
2016
2
Unclear
Confidence (in grade): 
Somewhat adequate
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Somewhat comparable

Topics

Ongoing, widespread exceedences of nutrient and suspended solids guidelines; little evidence of substantial, long-term improvements

 
 
 
Year(s): 
2011
2
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Not assessed

Topics

South-east Coast (Victoria)

This assessment summary component has changed from 2011.

  • The South East Coast division was divided into 2 divisions: South East Coast (New South Wales), covering catchments north from Towamba River, and South East Coast (Victoria), covering catchments west from the East Gippsland river region.

The original 2011 summary, grade, trend and confidence levels have been replicated here to assist comparison of changes between reporting cycles.

 
 
 

Majority of sites in moderate to poor condition

Year(s): 
2016
2
Stable
Confidence (in grade): 
Somewhat adequate
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Somewhat comparable

Topics

Ongoing, widespread exceedences of nutrient and suspended solids guidelines; little evidence of substantial, long-term improvements

 
 
 
Year(s): 
2011
2
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Not assessed

Topics

Continuing exceedance of water quality guidelines

Year(s): 
2016
1
Stable
Confidence (in grade): 
Limited
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Somewhat comparable

Topics

Ongoing exceedences of nutrient and salinity levels

 
 
 
Year(s): 
2011
1
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Not assessed

Topics

Very little water quality data available; no comprehensive assessments available

Year(s): 
2016
0
Unclear
Confidence (in grade): 
Low
Confidence (in trend): 
Low
Comparability (to previous reports): 
Comparable

Topics

Very little water quality data available

Year(s): 
2011
0
Unclear
Confidence (in grade): 
Low
Confidence (in trend): 
Low
Comparability (to previous reports): 
Not assessed

Topics

Tanami-Timor Sea Coast

This assessment summary component has changed from 2011.

  • The Timor Sea division was renamed the Tanami–Timor Sea Coast division.

The original 2011 summary, grade, trend and confidence levels have been replicated here to assist comparison of changes between reporting cycles.

 
 
 

Limited data, mainly from Daly and Darwin

Year(s): 
2016
3
Stable
Confidence (in grade): 
Very limited
Confidence (in trend): 
Very limited
Comparability (to previous reports): 
Somewhat comparable

Topics

Very little water quality data except for Ord River and around Darwin; sedimentation issues arising from extensive land uses

 
 
 
Year(s): 
2011
3
Unclear
Confidence (in grade): 
Limited
Confidence (in trend): 
Low
Comparability (to previous reports): 
Not assessed

Topics

Local areas of high nutrient values; otherwise, moderate to very good condition

Year(s): 
2016
3
Stable
Confidence (in grade): 
Limited
Confidence (in trend): 
Very limited
Comparability (to previous reports): 
Somewhat comparable

Topics

Nitrogen levels of local concern; salinity generally within guidelines

 
 
 
Year(s): 
2011
3
Stable
Confidence (in grade): 
Adequate
Confidence (in trend): 
Limited
Comparability (to previous reports): 
Not assessed

Topics

Argent RM (2016). Inland water: State and trends of water quality. In: Australia state of the environment 2016, Australian Government Department of the Environment and Energy, Canberra, https://soe.environment.gov.au/assessment-summary/inland-water/state-and-trends-water-quality, DOI 10.4226/94/58b656cfc28d1