WaterWatch Portal

ME_YMR112 Yarra River Catchment

Merri Creek Sub Catchment

Active

Monitoring organisations

ME_Merri Creek Stream Team

ME_MerriCreekManagementCommittee (MCMC)

Habitat Scores

Explain for me

06-12-2009 - 04-03-2012

	Bank Erosion Stability	Bank Vegetation	In Stream Cover	Riffles Pools Bends	Verge Vegetation
March 2012	Fair	Fair	Poor	Poor	Poor

December 2009

Water Bugs

Explain for me

WaterWatch Method

14-04-2003 - 02-09-2018

Date	Taxa Count	Total score	Rating
September 2013	55	29	Poor
August 2013	55	35	Poor
July 2013	95	39	Good
November 2009		96	Good
January 2009		96	Good
December 2008		96	Good
October 2008		96	Good
September 2008		96	Good
August 2008		96	Good
July 2008		96	Good
June 2008		96	Good
May 2008		96	Good
April 2008		96	Good
March 2008		96	Good
February 2008		96	Good
January 2008		96	Good
December 2007		96	Good
October 2007		96	Good
September 2007		96	Good
August 2007		96	Good
July 2007		96	Good
June 2007		96	Good
April 2007		96	Good
March 2007		96	Good
February 2007		96	Good
January 2007		96	Good
December 2006		96	Good
November 2006		96	Good
October 2006		96	Good
September 2006		96	Good
August 2006		96	Good
June 2006		96	Good
May 2006		96	Good
April 2006		96	Good
March 2006		96	Good
February 2006		96	Good
December 2005		96	Good
November 2005		96	Good
October 2005		96	Good
September 2005		96	Good
August 2005		96	Good
July 2005		96	Good
June 2005		96	Good
May 2005		96	Good
April 2005		96	Good
March 2005		96	Good
January 2005		96	Good
December 2004		96	Good
November 2004		96	Good
October 2004		96	Good
September 2004		96	Good
August 2004		96	Good
July 2004		96	Good
June 2004		96	Good
May 2004		96	Good
September 2003		96	Good
July 2003		96	Good
June 2003		96	Good
May 2003		96	Good
April 2003		96	Good

Water Bugs

Explain for me

Agreed Level Taxonomy Method

06-10-2013 - 05-10-2025

Date	Taxa Count	Weighted SIGNAL
April 2025	302	4.3
March 2025	412	4.5
January 2025		0.0
November 2024		0.0
October 2023	110	4.0
April 2023	150	3.6
March 2023	171	4.0
February 2023	265	3.7
January 2023	102	4.1
December 2022		0.0
February 2022	156	3.8
April 2021		0.0
March 2021		0.0
February 2021	161	3.9
March 2020	223	3.4
February 2020	88	3.1
January 2020	208	3.3
November 2019		0.0
October 2019		0.0
September 2019	60	2.5
August 2019	77	3.2
July 2019	100	3.4
May 2019		0.0
April 2019		0.0
March 2019	174	3.6
February 2019	260	3.3
January 2019	134	2.9
November 2018	167	3.1
October 2018	26	2.8
April 2018	293	3.2
March 2018	308	3.7
February 2018	201	3.6
January 2018	413	3.6
November 2017	247	3.5
October 2017	54	4.0
April 2017	334	3.9
March 2017	531	4.0
February 2017	292	3.6
January 2017	217	4.2
December 2016	267	3.8
November 2016	196	2.9
April 2016	124	3.9
March 2016	426	3.5
February 2016	104	3.7
January 2016	171	3.5
December 2015	434	3.5
November 2015	153	3.3
October 2015	128	3.2
April 2015	376	3.8
February 2015	216	3.5
January 2015	433	3.3
November 2014	249	3.7
October 2014	165	3.0
September 2014	88	3.7
August 2014	64	3.1
July 2014	80	2.8
April 2014	318	3.1
March 2014	369	3.2
February 2014	128	3.2
January 2014	235	3.2
November 2013	163	3.4
October 2013	80	3.2

Physical Chemical Tests

Explain for me

Site Visits

Trend Line

Ammonia-Nitrogen

Explain for me 14-04-2003 to 09-11-2009

0.02 mg/L NH3-N
Median 0.00mg/L NH3-N
Latest

Ammonium

Explain for me 06-12-2009 to 05-10-2025

0.00 mg/L NH4+
Median 0.00mg/L NH4+
Latest

Dissolved Oxygen mg/L

Explain for me 14-04-2003 to 05-10-2025

8.00 mg/L
Median 9.00mg/L
Latest

Filterable Reactive Phosphorus

Explain for me 14-04-2003 to 09-11-2009

0.10 mg/L P
Median 0.20mg/L P
Latest

Nitrate - Nitrogen

Explain for me 14-04-2003 to 09-11-2009

N/A mg/L N
Median N/Amg/L N
Latest

Temperature - WATER

Explain for me 14-04-2003 to 05-10-2025

17.3 ° C
Median 16.9° C
Latest

pH

Explain for me 14-04-2003 to 05-10-2025

8.00 pH Units
Median 8.50pH Units
Latest

Electrical Conductivity

Explain for me 14-04-2003 to 05-10-2025

820.00 µS/cm
Median 810.00µS/cm
Latest

Reactive Phosphate (mg/L)

Explain for me 06-12-2009 to 05-10-2025

0.100 mg/L P
Median 0.030mg/L P
Latest

Dissolved Oxygen % Saturation

Explain for me 06-12-2009 to 05-10-2025

85 %
Median 93%
Latest

Turbidity - NTU

Explain for me 14-04-2003 to 16-10-2025

10 NTU
Median 9NTU
Latest

View all site visits

Water Quality Indicators for Urban - Maribyrnong River tributaries and Yarra River NW tributaries

(2020 to 2025) 47 visits Explain for me

	Dissolved Oxygen Saturation	pH Lower	pH Upper	Electrical Conductivity	Turbidity	Reactive Phosphorus
	%	pH Units	pH Units	µS/cm	NTU	mg/L P
	75th Percentile	75th Percentile	75th Percentile	75th Percentile	75th Percentile	75th Percentile
2020 to 2025	Explain for me 91 Good 41 visits	Explain for me 8.30 Good 44 visits	Explain for me 8.30 Moderate 44 visits	Explain for me 1030.00 Good 44 visits	Explain for me 30 Good 47 visits	Explain for me 0.100 Good 45 visits
2025	Explain for me 91 Good 8 visits	Explain for me 8.35 Good 9 visits	Explain for me 8.35 Moderate 9 visits	Explain for me 870.00 Good 8 visits	Explain for me 12 Good 10 visits	Explain for me 0.065 Good 9 visits
2024	Explain for me 88 Good 8 visits	Explain for me 8.35 Good 9 visits	Explain for me 8.35 Moderate 9 visits	Explain for me 990.00 Good 9 visits	Explain for me 22 Good 9 visits	Explain for me 0.065 Good 9 visits
2023	Explain for me 108 Good 7 visits	Explain for me 8.30 Good 6 visits	Explain for me 8.30 Moderate 6 visits	Explain for me 1385.00 Good 7 visits	Explain for me 27 Good 7 visits	Explain for me 0.070 Good 7 visits
2022	Explain for me 86 Good 11 visits	Explain for me 7.95 Good 11 visits	Explain for me 7.95 Good 11 visits	Explain for me 1020.00 Good 11 visits	Explain for me 35 Moderate 12 visits	Explain for me 0.135 Moderate 11 visits
2021	N/A 4 visits	Explain for me 8.30 Good 6 visits	Explain for me 8.30 Moderate 6 visits	Explain for me 940.00 Good 6 visits	Explain for me 20 Good 6 visits	Explain for me 0.090 Good 6 visits
2020	N/A 3 visits	N/A 3 visits	N/A 3 visits	N/A 3 visits	N/A 3 visits	N/A 3 visits