Catchment nutrient reports
The catchment nutrient reports provide a summary of monitoring data collected at a number of sites in the south-west of Western Australia.
Catchment nutrient reports focus on the concentrations and loads of nutrients leaving the catchments and entering the receiving environments (generally estuaries).The reports are produced every five years with annual updates where appropriate. They are available for the Swan Canning and Peel Harvey catchments.
For maps of these catchments click here Swan Canning catchment map or Peel Harvey catchment map.
Each nutrient report contains information on all or some of the following (there are slight differences between catchments):
Compliance with targets
Where catchment specific targets exist compliance with these targets is calculated and presented. Compliance is determined using rigorous statistical analysis to ensure that the risk of incorrect reporting is kept to a minimum.
For more information on the compliance methodology click here.
Trends
Where sufficient data exists trend analysis is performed to determine if there have been any statistically-significant trends in the data set. Either the Mann Kendall or the Seasonal Kendall test is used as appropriate.
Click here for more information on the trend testing methodology.
Status
Status has been calculated for some catchments and provides a simple summary of the available data by classifying it into bands.
Click here for more information on how status is calculated.
Loads
For those sites where sufficient flow and concentration data exists loads have been calculated to give an indication of the mass of nutrients leaving the catchments and entering the receiving environment. Some catchments also have modelled loads presented.
For more information on how loads are calculated click here.
Swan-Canning reports
Nutrient reports have been prepared for 15 of the catchments of the Swan-Canning estuary:
2018
To find a nutrient report for 2018, search using the terms "2018" and "nutrient report" and add the location name if possible.
2017
To find a nutrient report for 2017, search using the terms "2017" and "nutrient report" and add the location name if possible.
2016
To find a nutrient report for 2016, search using the terms "2016" and "nutrient report" and add the location name if possible.
2014 and 2015
Bannister Creek: Swan Canning catchment nutrient report update 2014
Bannister Creek: Swan Canning catchment nutrient report update 2015
Bennett Brook: Swan Canning catchment nutrient report update 2014
Bennett Brook: Swan Canning catchment nutrient report update 2015
Blackadder Creek: Swan Canning catchment nutrient report update 2014
Blackadder Creek: Swan Canning catchment nutrient report update 2015
South Belmont Main Drain: Swan Canning catchment nutrient report update 2014
South Belmont Main Drain: Swan Canning catchment nutrient report update 2015
Jane Brook: Swan Canning catchment nutrient report update 2014
Jane Brook: Swan Canning catchment nutrient report update 2015
Yule Brook: Swan Canning catchment nutrient report update 2014
Yule Brook: Swan Canning catchment nutrient report update 2015
Susannah Brook: Swan Canning catchment nutrient report update 2014
Susannah Brook: Swan Canning catchment nutrient report update 2015
Helena River: Swan Canning catchment nutrient report update 2014
Helena River: Swan Canning catchment nutrient report update 2014
Upper Canning River: Swan Canning catchment nutrient report update 2014
Upper Canning River: Swan Canning catchment nutrient report update 2015
Southern River: Swan Canning catchment nutrient report update 2014
Southern River: Swan Canning catchment nutrient report update 2015
Avon River (Millendon): Swan Canning catchment nutrient report update 2014
Avon River (Millendon): Swan Canning catchment nutrient report update 2015
Bayswater Main Drain: Swan Canning catchment nutrient report update 2014
Bayswater Main Drain: Swan Canning catchment nutrient report update 2015
Bickley Brook: Swan Canning catchment nutrient report update 2014
Bickley Brook: Swan Canning catchment nutrient report update 2015
Mills Street Main Drain: Swan Canning catchment nutrient report update 2014
Mills Street Main Drain: Swan Canning catchment nutrient report update 2015
Ellen Brook: Swan Canning catchment nutrient report update 2014
Ellen Brook: Swan Canning catchment nutrient report update 2015
Peel-Harvey reports
Nutrient reports have been prepared for 13 of the catchments of the Peel Harvey Estuary:
2015 five-year reports (2001-14)
Upper Serpentine River: Peel-Harvey catchment nutrient report 2015
Peel Main Drain: Peel-Harvey catchment nutrient report 2015
Dirk Brook Punrak Drain: Peel-Harvey catchment nutrient report 2015
Nambeelup Brook: Peel-Harvey catchment nutrient report 2015
Lower Serpentine River Gull Road Drain: Peel-Harvey catchment nutrient report 2015
South Dandalup River: Peel-Harvey catchment nutrient report 2015
Middle Murray River: Peel-Harvey catchment nutrient report 2015
Coolup South Main Drain: Peel-Harvey catchment nutrient report 2015
Mayfield Drain: Peel-Harvey catchment nutrient report 2015
Harvey River: Peel-Harvey catchment nutrient report 2015
Meredith Drain: Peel-Harvey catchment nutrient report 2015
Drakes Brook Waroona Drain: Peel-Harvey catchment nutrient report 2015
Samson North Drain: Peel-Harvey catchment nutrient report 2015
2016 update reports (2002-15)
Upper Serpentine River: Peel-Harvey catchment nutrient report 2015 - Update 2016
Peel Main Drain: Peel-Harvey catchment nutrient report 2015 - Update 2016
Dirk Brook Punrak Drain: Peel-Harvey catchment nutrient report 2015 - Update 2016
Nambeelup Brook: Peel-Harvey catchment nutrient report 2015 - Update 2016
Lower Serpentine River Gull Road Drain: Peel-Harvey catchment nutrient report 2015 - Update 2016
South Dandalup River: Peel-Harvey catchment nutrient report 2015 - Update 2016
Middle Murray River: Peel-Harvey catchment nutrient report 2015 - Update 2016
Coolup South Main Drain: Peel-Harvey catchment nutrient report 2015 - Update 2016
Mayfield Drain: Peel-Harvey catchment nutrient report 2015 - Update 2016
Harvey River: Peel-Harvey catchment nutrient report 2015 - Update 2016
Meredith Drain: Peel-Harvey catchment nutrient report 2015 - Update 2016
Drakes Brook Waroona Drain: Peel-Harvey catchment nutrient report 2015 - Update 2016
Samson North Drain: Peel-Harvey catchment nutrient report 2015 - Update 2016
2017 update reports (2002-16)
Upper Serpentine River: Peel-Harvey catchment nutrient report 2015 - Update 2017
Peel Main Drain: Peel-Harvey catchment nutrient report 2015 - Update 2017
Dirk Brook Punrak Drain: Peel-Harvey catchment nutrient report 2015 - Update 2017
Nambeelup Brook: Peel-Harvey catchment nutrient report 2015 - Update 2017
Lower Serpentine River Gull Road Drain: Peel-Harvey catchment nutrient report 2015 - Update 2017
South Dandalup River: Peel-Harvey catchment nutrient report 2015 - Update 2017
Middle Murray River: Peel-Harvey catchment nutrient report 2015 - Update 2017
Coolup South Main Drain: Peel-Harvey catchment nutrient report 2015 - Update 2017
Mayfield Drain: Peel-Harvey catchment nutrient report 2015 - Update 2017
Harvey River: Peel-Harvey catchment nutrient report 2015 - Update 2017
Meredith Drain: Peel-Harvey catchment nutrient report 2015 - Update 2017
Drakes Brook Waroona Drain: Peel-Harvey catchment nutrient report 2015 - Update 2017
Samson North Drain: Peel-Harvey catchment nutrient report 2015 - Update 2017
Leschenault reports
Nutrient reports have been prepared for 10 catchments of the Leschenault Estuary:
Leschenault catchment summary nutrient report 2012
Ferguson River: Leschenault nutrient report 2012
Middle Collie River: Leschenault nutrient report 2012
Mid Preston River: Leschenault nutrient report 2012
Tidal and Mid Brunswick: Leschenault River nutrient report 2012
Parkfield, Estuary and Coast: Leschenault nutrient report 2012
Thomson Brook: Leschenault nutrient report 2012
Tidal Collie River: Leschenault nutrient report 2012
Upper Brunswick River: Leschenault nutrient report 2012