Summary Waterway Water Quality Data 2002

Melbourne Water’s Waterway Water Quality Monitoring Network consists of 72 sites throughout Greater Melbourne. Sites are sampled monthly, and tested for the following water quality indicators: water temperature, dissolved oxygen, salinity (conductivity), pH, nutrients (nitrate, nitrite, ammonia, Kjeldahl nitrogen, soluble reactive phosphorus and total phosphorus), faecal contamination (E. coli) and metals (arsenic, cadmium, chromium, copper, lead, nickel and zinc).

The main objective of this water quality monitoring is to determine broad-scale changes over time, typically eight to ten years. This information complements more intensive and finer-scale stream health surveys that contribute to development of waterway management plans and other waterway protection and improvement decisions. EPA Victoria audits and approves changes to the water quality monitoring network.

In addition to the long-term Waterway Water Quality Monitoring Network, Melbourne Water conducts summer E. coli and blue-green algae monitoring at a number of key locations. These programs, occurring between the start of December and the end of March, are targeted at protecting public health associated with aquatic recreation during peak water-use.

This Fact Sheet provides summary statistics for each of the 72 stream monitoring sites during 2002. It is intended to provide a brief overview of water quality for that year and not, for example, to assess compliance with environment legislation (i.e. State environment protection policies). It should also be acknowledged that sampling on a monthly frequency is likely to bias results towards times of low flow. This is simply because, more often than not, there is no rainfall occurring at the time of sampling. Water quality can change remarkably during rainfall events – during which the majority of sediment, nutrients and other materials are carried downstream. Drought conditions during 2002 were also likely to be having a significant influence on water quality during that time.

Summary statistics presented in this Fact Sheet are: the number of samples collected (‘n’), the minimum and maximum levels measured, and the 25th, 50th (or median) and 75th percentiles. The percentiles indicate the level that Xth percent of the samples measured equal to or below. In some cases, sites had less than 12 samples for the year. This will be because the site dried up for a period, or there were temporary access problems. Where results were less than the analytical detection limit, for statistical calculations, those results were converted to half the detection limit.

In many cases, these summary statistics are best considered in combination with water quality results from previous years and other stream health information e.g. aquatic macroinvertebrates, fish, algae, platypus, physical stream condition and sediment quality data.

Melbourne Water has produced several stream health reports and most can be accessed and downloaded from the Melbourne Water web site. Included in the reports are the 1998 Healthy Waterways Report and 1999 Healthy Waterways Report that contain water quality results for those years and other summary stream health information.

Further Information

For more information, please contact Melbourne Water, on 131 722.

o Water Temperature ( C) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 9.3 10.0 12.4 14.5 17.0 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 8.1 11.0 12.5 14.2 15.4 Brushy Creek at Lower Homestead Road, Wonga 12 8.4 13.8 16.7 19.5 20.8 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 8.4 10.7 13.3 14.7 16.4 Darebin Creek at Clark Road, Ivanhoe 12 8.9 12.0 13.7 17.6 19.4 Diamond Creek at Strathhaven Road, Cottles Bridge 11 7.5 11.3 13.0 14.0 17.2 Diamond Creek at Main Road, Eltham 12 9.4 11.4 13.4 16.2 19.6 Gardiners Creek at Glenferrie Road, Hawthorn 12 9.2 12.5 16.0 17.9 21.0 Jumping Creek at Brysons Road, Wonga Park 12 8.8 11.2 13.9 16.2 18.0 Koonung Creek at Bulleen Road, Bulleen 12 10.8 11.7 14.0 16.1 19.6 Little Yarra River at Corduroy Road, Yarra Junction 12 8.1 10.8 12.3 14.0 16.6 Merri Creek at Summerhill Road, Craigieburn 12 7.9 11.9 14.4 16.5 17.0 Merri Creek at Roseneath Street, Yarra Bend 12 8.7 12.6 15.9 18.1 20.4 Moonee Ponds Creek at Mt Alexander Road, 12 10.7 12.3 12.9 16.0 18.9 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 9.3 11.3 13.3 16.1 19.0 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 8.2 12.7 16.3 19.0 20.3 Plenty River at Plenty Gorge, South Morang 12 8.5 11.5 13.8 15.2 17.2 Plenty River at Henty Road, Lower Plenty 12 10.1 11.3 14.3 16.5 19.4 Ruffy Creek at Parker Street, Templestowe 12 9.8 11.0 13.4 15.7 19.0 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 8.9 9.3 11.1 13.9 17.3 Glen Stringybark Creek at St. Huberts Road, Yering 12 8.9 11.2 14.9 17.0 19.6 Wandin Yallock Creek at Killara Road, Gruyere 12 8.4 10.7 13.5 14.5 16.7 Watsons Creek at Henley Road, Kangaroo Ground 12 8.6 10.0 11.4 14.4 16.6 Watts River at Healesville-Kinglake Road, 12 8.4 11.3 14.9 16.6 18.5 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 8.0 10.6 13.8 14.9 17.0 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 8.3 10.9 13.8 15.0 17.3 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 8.1 9.8 13.0 14.2 16.6 Yarra River at Don Road, Launching Place 12 8.2 10.2 12.2 14.3 17.4 Yarra River at Everard Park Maroondah Highway, 12 8.3 11.0 15.0 16.6 19.0 Healesville Yarra River at Spadonis Reserve, Coldstream 7 8.5 9.9 11.5 17.1 20.1 Yarra River at Warrandyte Road Bridge, Warrandyte 12 8.2 11.8 14.5 17.9 20.2 Yarra River at Chandler Highway, Kew 12 8.9 11.6 15.1 19.4 21.0 Yarra River at Princes Bridge, South Melbourne 12 9.0 12.2 14.9 18.2 19.9

Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 7.5 10.7 13.7 18.0 20.8 Rowville Dandenong Creek upstream Sheffield Road, 13 7.8 9.9 11.4 14.7 17.4 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 8.2 9.8 14.3 17.9 24.7 Dandenong Creek at Stud Road, Dandenong North 13 7.8 10.6 14.9 18.3 21.0 Dandenong Creek at Pillars Crossing, Dandenong 13 9.0 11.9 15.9 19.0 23.7 South Elster Creek at Cochrane Street, Elwood 12 10.3 12.6 14.5 16.1 18.7 Eumemmerring Creek at Worsley Road, Bangholme 13 9.3 10.7 15.4 19.3 23.1 Hallam Valley Main Drain at South Gippsland 13 8.8 10.6 15.3 18.0 21.4 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 10.8 12.8 16.3 19.0 22.2 Mile Creek at Cheltenham Road, Keysborough 13 8.8 11.3 15.4 18.0 21.3 Mordialloc Creek at end Wells Road, Mordialloc 13 9.8 12.5 15.8 18.2 26.1 Patterson River, National Water Sports Centre outlet, 13 9.6 13.2 17.5 19.2 21.8 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 10.1 12.1 14.5 16.0 19.3 Bunyip River at North Labertouche Road, 12 8.2 10.7 12.4 13.6 15.3 Labertouche Bunyip River downstream of Cannibal Creek, 12 8.3 10.7 12.2 14.8 16.4 Longwarry North Bunyip Main Drain at Little Road, Iona 12 8.6 11.5 14.7 16.6 18.7 Bunyip River at Healesville Koo Wee Rup Road, 12 8.6 11.7 13.9 17.0 18.7 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 9.8 11.0 13.6 15.7 17.8 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 7.6 11.8 13.9 17.1 20.0 Chinamans Creek at Eastborne Road, Rosebud West 13 11.3 12.7 15.0 17.0 19.6 Deep Creek at Ballarto Road, Rythdale 12 9.2 11.0 14.8 17.7 19.1 Dunns Creek at Marine Drive, Safety Beach 13 10.4 11.8 14.9 16.9 19.3 Lang-Lang River at Drouin-Poowong Road, Athlone 12 8.5 11.3 13.5 16.5 17.5 Lang-Lang River at South Gippsland Highway, Lang 12 8.8 11.4 15.2 16.7 18.8 Lang Main Creek at Boneo Road, Flinders 13 9.8 10.7 14.2 16.7 21.0 Merricks Creek at end Bridge Street, Merricks 13 10.5 12.2 14.1 19.3 23.0 Tarago River at Morrisons Road, Labertouche 12 8.8 10.9 14.0 16.6 17.8 Toomuc Creek at Princes Highway, Pakenham 12 10.2 11.0 14.2 15.8 17.3 Toomuc Creek at Ballarto Road, Rythdale 12 9.5 11.9 14.0 16.0 18.1 Warrangine Creek at Frankston-Flinders Road, 13 10.1 11.5 13.9 17.1 19.1 Hastings Watsons Creek at Dandenong-Hastings Road, 13 10.2 11.2 14.0 18.0 19.8 Somerville Yallock Outfall at South Gippsland Highway, 12 9.0 11.8 15.9 18.2 19.2

Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 10.8 12.7 15.8 18.9 19.9 Maribyrnong River at Canning Street, Avondale 12 10.9 12.3 14.4 18.2 19.8 Heights Steele Creek at Rose Avenue, Niddrie 12 11.3 12.1 14.1 17.0 19.7 Stony Creek at Bena Street, Yarraville 12 10.8 11.7 13.0 17.0 18.5 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 10.8 11.7 14.6 16.7 19.1 Kororoit Creek at Racecourse Road, Altona 12 10.9 12.2 13.9 15.8 21.1 Skeleton Creek at Ayr Street, Laverton 12 11.1 12.4 15.5 17.1 20.3 Dissolved Oxygen (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 4.5 5.5 7.1 8.5 10.6 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 2.6 4.9 6.1 6.9 10.5 Brushy Creek at Lower Homestead Road, Wonga 12 5.8 6.6 7.3 8.3 9.5 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 7.4 8.0 8.8 9.9 10.9 Darebin Creek at Clark Road, Ivanhoe 12 6.1 8.9 9.3 9.7 12.1 Diamond Creek at Strathhaven Road, Cottles Bridge 11 1.7 2.6 3.8 3.9 9.3 Diamond Creek at Main Road, Eltham 12 2.0 4.8 6.5 7.8 10.3 Gardiners Creek at Glenferrie Road, Hawthorn 12 8.6 9.9 10.3 11.3 12.7 Jumping Creek at Brysons Road, Wonga Park 12 5.7 7.1 8.7 10.2 11.2 Koonung Creek at Bulleen Road, Bulleen 12 3.7 5.6 6.6 7.3 10.1 Little Yarra River at Corduroy Road, Yarra Junction 12 6.7 8.9 9.3 10.1 11.8 Merri Creek at Summerhill Road, Craigieburn 12 1.8 4.8 5.1 6.2 9.0 Merri Creek at Roseneath Street, Yarra Bend 12 7.5 9.8 10.5 11.2 12.2 Moonee Ponds Creek at Mt Alexander Road, 12 3.7 4.3 6.9 8.7 9.2 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 4.4 6.6 6.9 8.4 10.5 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 4.8 6.0 6.8 8.1 10.7 Plenty River at Plenty Gorge, South Morang 12 3.6 4.1 7.1 7.6 10.4 Plenty River at Henty Road, Lower Plenty 12 2.8 5.1 6.1 7.0 9.4 Ruffy Creek at Parker Street, Templestowe 12 7.5 7.8 8.4 9.2 10.8 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 5.4 6.3 6.7 8.5 9.8 Glen Stringybark Creek at St. Huberts Road, Yering 12 6.3 6.8 7.0 8.0 11.8 Wandin Yallock Creek at Killara Road, Gruyere 12 5.4 7.7 8.3 9.7 11.3 Watsons Creek at Henley Road, Kangaroo Ground 12 5.1 7.3 8.1 8.8 10.1 Watts River at Healesville-Kinglake Road, 12 5.5 6.7 7.4 8.6 10.9 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 6.6 7.8 8.5 9.7 10.9 Road, Yellingbo

Woori Yallock Creek at Warburton Highway, Woori 12 6.4 8.0 8.7 10.1 11.2 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 6.9 8.4 8.9 10.7 11.9 Yarra River at Don Road, Launching Place 12 6.9 8.8 8.9 9.9 11.6 Yarra River at Everard Park Maroondah Highway, 12 6.0 6.9 7.8 9.5 11.3 Healesville Yarra River at Spadonis Reserve, Coldstream 7 5.7 7.1 8.3 10.4 10.8 Yarra River at Warrandyte Road Bridge, Warrandyte 12 5.6 7.4 8.0 8.8 11.2 Yarra River at Chandler Highway, Kew 12 5.6 5.9 7.5 8.4 12.2 Yarra River at Princes Bridge, South Melbourne 12 4.5 5.6 6.3 7.1 12.3 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 5.6 6.9 7.5 9.1 11.6 Rowville Dandenong Creek upstream Sheffield Road, 13 6.9 8.1 9.0 9.8 12.0 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 3.9 5.9 7.2 8.8 9.9 Dandenong Creek at Stud Road, Dandenong North 13 5.4 5.9 6.5 8.6 12.1 Dandenong Creek at Pillars Crossing, Dandenong 13 4.9 7.1 7.6 9.3 11.0 South Elster Creek at Cochrane Street, Elwood 12 4.8 6.5 8.1 10.0 14.2 Eumemmerring Creek at Worsley Road, Bangholme 13 4.6 5.6 7.3 7.5 10.9 Hallam Valley Main Drain at South Gippsland 13 4.0 4.5 5.5 8.2 10.6 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 2.6 4.2 5.6 6.8 8.1 Mile Creek at Cheltenham Road, Keysborough 13 3.5 4.6 5.9 7.6 9.8 Mordialloc Creek at end Wells Road, Mordialloc 13 3.4 4.7 6.2 6.8 10.3 Patterson River, National Water Sports Centre outlet, 13 5.3 7.3 7.8 8.6 11.1 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 3.2 3.5 6.3 8.0 9.2 Bunyip River at North Labertouche Road, 12 7.8 8.8 9.4 9.9 10.9 Labertouche Bunyip River downstream of Cannibal Creek, 12 7.2 8.4 9.0 9.5 10.8 Longwarry North Bunyip Main Drain at Little Road, Iona 12 6.9 7.4 8.2 9.5 11.1 Bunyip River at Healesville Koo Wee Rup Road, 12 6.8 7.7 8.9 9.2 11.3 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 6.7 7.5 8.4 9.0 9.9 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 7.4 8.6 9.1 9.7 10.4 Chinamans Creek at Eastborne Road, Rosebud West 13 2.2 2.9 3.5 4.5 5.7 Deep Creek at Ballarto Road, Rythdale 12 2.1 4.3 5.1 6.9 10.3 Dunns Creek at Marine Drive, Safety Beach 13 4.9 5.6 7.2 8.1 9.4 Lang-Lang River at Drouin-Poowong Road, Athlone 12 5.6 6.2 7.4 8.5 10.9 Lang-Lang River at South Gippsland Highway, Lang 12 5.8 6.9 8.3 9.0 11.5 Lang

Main Creek at Boneo Road, Flinders 13 6.3 7.5 9.1 9.6 10.2 Merricks Creek at end Bridge Street, Merricks 13 4.4 5.0 5.2 7.3 8.9 Tarago River at Morrisons Road, Labertouche 12 6.3 6.9 8.5 9.7 11.3 Toomuc Creek at Princes Highway, Pakenham 12 6.1 6.6 8.0 8.8 10.3 Toomuc Creek at Ballarto Road, Rythdale 12 3.1 4.4 5.2 6.1 7.6 Warrangine Creek at Frankston-Flinders Road, 13 4.6 5.7 6.3 8.1 9.2 Hastings Watsons Creek at Dandenong-Hastings Road, 13 4.6 6.9 8.1 8.8 10.0 Somerville Yallock Outfall at South Gippsland Highway, 12 4.2 5.4 6.9 8.6 10.5 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 2.0 5.5 6.4 7.9 9.0 Maribyrnong River at Canning Street, Avondale 12 4.6 5.8 6.8 7.7 8.6 Heights Steele Creek at Rose Avenue, Niddrie 12 6.3 7.1 8.1 8.4 9.2 Stony Creek at Bena Street, Yarraville 12 1.7 5.3 6.5 7.9 10.9 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 3.8 5.3 6.3 6.9 7.5 Kororoit Creek at Racecourse Road, Altona 12 0.5 5.2 6.5 7.8 10.9 Skeleton Creek at Ayr Street, Laverton 12 3.8 4.7 5.5 6.0 7.1 Dissolved Oxygen (% saturation) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 49 54 75 89 98 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 28 52 63 72 89 Brushy Creek at Lower Homestead Road, Wonga 12 63 70 77 81 88 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 77 82 85 92 98 Darebin Creek at Clark Road, Ivanhoe 12 65 89 93 102 109 Diamond Creek at Strathhaven Road, Cottles Bridge 11 19 31 36 42 78 Diamond Creek at Main Road, Eltham 12 19 52 68 81 88 Gardiners Creek at Glenferrie Road, Hawthorn 12 89 100 109 116 131 Jumping Creek at Brysons Road, Wonga Park 12 58 73 89 93 97 Koonung Creek at Bulleen Road, Bulleen 12 39 60 69 77 93 Little Yarra River at Corduroy Road, Yarra Junction 12 68 87 90 98 101 Merri Creek at Summerhill Road, Craigieburn 12 18 48 54 65 81 Merri Creek at Roseneath Street, Yarra Bend 12 80 99 106 112 120 Moonee Ponds Creek at Mt Alexander Road, 12 40 47 71 89 97 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 47 69 74 86 90 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 53 63 71 80 90 Plenty River at Plenty Gorge, South Morang 12 36 41 72 79 89 Plenty River at Henty Road, Lower Plenty 12 30 54 64 72 85

Ruffy Creek at Parker Street, Templestowe 12 73 82 86 94 97 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 56 62 67 74 86 Glen Stringybark Creek at St. Huberts Road, Yering 12 62 66 72 79 107 Wandin Yallock Creek at Killara Road, Gruyere 12 56 75 81 92 98 Watsons Creek at Henley Road, Kangaroo Ground 12 52 73 83 88 101 Watts River at Healesville-Kinglake Road, 12 60 70 77 81 91 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 67 77 84 87 111 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 66 78 88 92 96 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 70 82 90 98 104 Yarra River at Don Road, Launching Place 12 74 83 89 95 101 Yarra River at Everard Park Maroondah Highway, 12 64 72 79 92 98 Healesville Yarra River at Spadonis Reserve, Coldstream 7 62 74 88 94 94 Yarra River at Warrandyte Road Bridge, Warrandyte 12 64 78 83 91 95 Yarra River at Chandler Highway, Kew 12 61 63 75 85 110 Yarra River at Princes Bridge, South Melbourne 12 48 58 67 76 108 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 58 75 80 93 100 Rowville Dandenong Creek upstream Sheffield Road, 13 67 82 89 93 101 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 44 64 77 84 106 Dandenong Creek at Stud Road, Dandenong North 13 60 63 68 82 102 Dandenong Creek at Pillars Crossing, Dandenong 13 54 76 77 92 102 South Elster Creek at Cochrane Street, Elwood 12 52 68 86 102 120 Eumemmerring Creek at Worsley Road, Bangholme 13 52 60 76 84 94 Hallam Valley Main Drain at South Gippsland 13 42 50 57 82 94 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 26 45 59 71 85 Mile Creek at Cheltenham Road, Keysborough 13 36 48 61 70 82 Mordialloc Creek at end Wells Road, Mordialloc 13 38 49 63 71 91 Patterson River, National Water Sports Centre outlet, 13 58 76 84 91 100 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 35 40 70 84 98 Bunyip River at North Labertouche Road, 12 81 87 93 97 112 Labertouche Bunyip River downstream of Cannibal Creek, 12 76 84 88 96 100 Longwarry North Bunyip Main Drain at Little Road, Iona 12 69 77 85 92 104 Bunyip River at Healesville Koo Wee Rup Road, 12 72 77 89 94 99

Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 70 76 80 92 97 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 76 85 89 95 102 Chinamans Creek at Eastborne Road, Rosebud West 13 24 28 40 48 60 Deep Creek at Ballarto Road, Rythdale 12 22 44 50 73 88 Dunns Creek at Marine Drive, Safety Beach 13 51 61 75 86 96 Lang-Lang River at Drouin-Poowong Road, Athlone 12 58 64 72 85 93 Lang-Lang River at South Gippsland Highway, Lang 12 61 71 82 92 100 Lang Main Creek at Boneo Road, Flinders 13 69 79 95 98 106 Merricks Creek at end Bridge Street, Merricks 13 39 52 58 77 93 Tarago River at Morrisons Road, Labertouche 12 66 72 83 99 106 Toomuc Creek at Princes Highway, Pakenham 12 65 70 81 89 102 Toomuc Creek at Ballarto Road, Rythdale 12 36 47 50 65 74 Warrangine Creek at Frankston-Flinders Road, 13 49 63 74 80 96 Hastings Watsons Creek at Dandenong-Hastings Road, 13 48 71 82 90 103 Somerville Yallock Outfall at South Gippsland Highway, 12 40 58 70 89 96 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 21 55 68 81 94 Maribyrnong River at Canning Street, Avondale 12 48 61 72 79 90 Heights Steele Creek at Rose Avenue, Niddrie 12 63 71 83 87 96 Stony Creek at Bena Street, Yarraville 12 18 56 66 82 109 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 41 54 66 73 77 Kororoit Creek at Racecourse Road, Altona 12 6 55 69 82 106 Skeleton Creek at Ayr Street, Laverton 12 28 50 58 63 76 Electrical Conductivity (µS/cm) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 350 478 615 983 1400 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 310 335 360 585 1000 Brushy Creek at Lower Homestead Road, Wonga 12 460 590 665 700 720 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 140 150 160 163 190 Darebin Creek at Clark Road, Ivanhoe 12 410 648 765 905 1400 Diamond Creek at Strathhaven Road, Cottles Bridge 11 440 475 520 630 740 Diamond Creek at Main Road, Eltham 12 350 425 560 653 750 Gardiners Creek at Glenferrie Road, Hawthorn 12 150 403 500 598 860 Jumping Creek at Brysons Road, Wonga Park 12 440 773 960 1040 1380 Koonung Creek at Bulleen Road, Bulleen 12 220 598 755 923 1460

Little Yarra River at Corduroy Road, Yarra Junction 12 70 77 79 82 95 Merri Creek at Summerhill Road, Craigieburn 12 2000 3065 3875 4638 5980 Merri Creek at Roseneath Street, Yarra Bend 12 280 770 835 898 1200 Moonee Ponds Creek at Mt Alexander Road, 12 700 1710 1970 2570 3300 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 210 265 360 538 780 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 290 473 545 620 810 Plenty River at Plenty Gorge, South Morang 12 930 1175 1215 1303 1620 Plenty River at Henty Road, Lower Plenty 12 460 530 650 813 1090 Ruffy Creek at Parker Street, Templestowe 12 350 630 755 890 1250 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 160 565 780 990 1100 Glen Stringybark Creek at St. Huberts Road, Yering 12 590 635 735 778 860 Wandin Yallock Creek at Killara Road, Gruyere 12 460 570 615 640 680 Watsons Creek at Henley Road, Kangaroo Ground 12 720 815 865 933 1000 Watts River at Healesville-Kinglake Road, 12 79 99 110 110 130 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 130 130 145 153 200 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 130 140 145 165 200 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 39 50 54 59 89 Yarra River at Don Road, Launching Place 12 48 58 62 64 69 Yarra River at Everard Park Maroondah Highway, 12 88 92 98 110 140 Healesville Yarra River at Spadonis Reserve, Coldstream 7 110 120 130 145 180 Yarra River at Warrandyte Road Bridge, Warrandyte 12 140 160 180 205 250 Yarra River at Chandler Highway, Kew 12 180 210 240 268 310 Yarra River at Princes Bridge, South Melbourne 12 1200 4895 7180 15135 35000 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 210 360 400 560 870 Rowville Dandenong Creek upstream Sheffield Road, 13 100 120 130 150 370 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 120 260 610 690 740 Dandenong Creek at Stud Road, Dandenong North 13 190 340 430 580 1000 Dandenong Creek at Pillars Crossing, Dandenong 13 250 360 470 570 880 South Elster Creek at Cochrane Street, Elwood 12 290 725 790 835 960 Eumemmerring Creek at Worsley Road, Bangholme 13 390 700 820 920 1100 Hallam Valley Main Drain at South Gippsland 13 310 710 860 1030 1200 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 2400 28000 42300 46000 53000 Mile Creek at Cheltenham Road, Keysborough 13 200 620 1300 1600 3600 Mordialloc Creek at end Wells Road, Mordialloc 13 270 1230 2580 5020 49000

Patterson River, National Water Sports Centre outlet, 13 370 620 1160 3990 22000 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 840 1820 2210 2800 3200 Bunyip River at North Labertouche Road, 12 78 99 110 120 120 Labertouche Bunyip River downstream of Cannibal Creek, 12 79 120 150 185 490 Longwarry North Bunyip Main Drain at Little Road, Iona 12 140 170 210 278 480 Bunyip River at Healesville Koo Wee Rup Road, 12 140 223 255 275 460 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 66 108 160 178 410 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 190 328 370 393 500 Chinamans Creek at Eastborne Road, Rosebud West 13 920 1080 1260 1600 1800 Deep Creek at Ballarto Road, Rythdale 12 320 615 765 885 1300 Dunns Creek at Marine Drive, Safety Beach 13 1700 2000 3300 3830 12400 Lang-Lang River at Drouin-Poowong Road, Athlone 12 250 430 460 563 690 Lang-Lang River at South Gippsland Highway, Lang 12 530 548 625 770 1050 Lang Main Creek at Boneo Road, Flinders 13 1240 1580 1800 2000 2300 Merricks Creek at end Bridge Street, Merricks 13 1400 2850 3000 21000 50300 Tarago River at Morrisons Road, Labertouche 12 170 230 315 333 550 Toomuc Creek at Princes Highway, Pakenham 12 380 463 520 640 800 Toomuc Creek at Ballarto Road, Rythdale 12 240 345 510 640 700 Warrangine Creek at Frankston-Flinders Road, 13 1400 2070 2880 2950 3220 Hastings Watsons Creek at Dandenong-Hastings Road, 13 740 1820 3500 3780 5420 Somerville Yallock Outfall at South Gippsland Highway, 12 1100 1268 1850 3428 28800 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 1110 1493 1780 2100 2500 Maribyrnong River at Canning Street, Avondale 12 1290 1400 1900 2075 3860 Heights Steele Creek at Rose Avenue, Niddrie 12 480 788 1010 1320 1800 Stony Creek at Bena Street, Yarraville 12 290 375 410 535 2200 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 610 1148 1605 2050 3000 Kororoit Creek at Racecourse Road, Altona 12 370 2520 5365 26275 38400 Skeleton Creek at Ayr Street, Laverton 12 2010 2978 4100 4803 6700 pH n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 7.2 7.4 7.5 7.6 7.9 Warrandyte

Arthurs Creek at Burkes Bridge, Hurstbridge 11 7.0 7.2 7.4 7.6 7.9 Brushy Creek at Lower Homestead Road, Wonga 12 7.3 7.3 7.4 7.6 8.3 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 6.8 7.0 7.2 7.4 7.5 Darebin Creek at Clark Road, Ivanhoe 12 7.3 7.6 7.8 8.0 8.5 Diamond Creek at Strathhaven Road, Cottles Bridge 11 6.8 7.0 7.1 7.5 7.9 Diamond Creek at Main Road, Eltham 12 7.1 7.2 7.4 7.5 7.9 Gardiners Creek at Glenferrie Road, Hawthorn 12 7.4 7.7 8.0 8.3 8.6 Jumping Creek at Brysons Road, Wonga Park 12 7.5 7.6 7.6 7.8 8.3 Koonung Creek at Bulleen Road, Bulleen 12 6.7 6.9 7.2 7.6 8.5 Little Yarra River at Corduroy Road, Yarra Junction 12 6.3 6.6 7.0 7.3 7.7 Merri Creek at Summerhill Road, Craigieburn 12 7.6 7.7 7.9 8.0 8.2 Merri Creek at Roseneath Street, Yarra Bend 12 7.6 7.8 8.2 8.4 8.6 Moonee Ponds Creek at Mt Alexander Road, 12 7.8 7.9 8.0 8.2 8.4 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 7.2 7.4 7.4 7.6 8.1 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 7.3 7.3 7.5 7.6 7.7 Plenty River at Plenty Gorge, South Morang 12 6.4 7.4 7.6 7.7 8.0 Plenty River at Henty Road, Lower Plenty 12 7.1 7.2 7.3 7.4 8.2 Ruffy Creek at Parker Street, Templestowe 12 7.2 7.5 7.5 7.9 7.9 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 6.7 6.9 7.0 7.0 7.7 Glen Stringybark Creek at St. Huberts Road, Yering 12 6.9 7.1 7.2 7.4 7.8 Wandin Yallock Creek at Killara Road, Gruyere 12 6.8 7.0 7.3 7.4 7.6 Watsons Creek at Henley Road, Kangaroo Ground 12 7.1 7.4 7.5 7.6 8.0 Watts River at Healesville-Kinglake Road, 12 6.5 7.0 7.1 7.3 7.7 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 7.0 7.2 7.4 7.5 7.7 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 6.3 6.7 7.1 7.2 7.4 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 6.0 6.6 7.1 7.3 7.8 Yarra River at Don Road, Launching Place 12 6.4 6.6 7.0 7.5 7.7 Yarra River at Everard Park Maroondah Highway, 12 6.7 7.1 7.4 7.4 8.0 Healesville Yarra River at Spadonis Reserve, Coldstream 7 7.1 7.5 7.5 7.7 7.7 Yarra River at Warrandyte Road Bridge, Warrandyte 12 7.2 7.4 7.6 7.8 8.2 Yarra River at Chandler Highway, Kew 12 7.2 7.4 7.5 7.6 8.1 Yarra River at Princes Bridge, South Melbourne 12 6.6 7.0 7.1 7.4 7.8 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 6.9 7.1 7.3 7.4 7.6 Rowville Dandenong Creek upstream Sheffield Road, 13 6.1 6.7 7.4 7.5 7.9 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 6.6 7.0 7.2 7.3 9.2

Dandenong Creek at Stud Road, Dandenong North 13 7.1 7.3 7.4 7.5 7.7 Dandenong Creek at Pillars Crossing, Dandenong 13 7.2 7.5 7.6 7.8 8.4 South Elster Creek at Cochrane Street, Elwood 12 7.0 7.2 7.8 8.1 8.5 Eumemmerring Creek at Worsley Road, Bangholme 13 7.0 7.4 7.6 7.9 8.8 Hallam Valley Main Drain at South Gippsland 13 7.1 7.3 7.4 7.5 7.7 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 6.5 7.3 7.6 7.8 8.0 Mile Creek at Cheltenham Road, Keysborough 13 6.9 7.1 7.3 7.3 7.5 Mordialloc Creek at end Wells Road, Mordialloc 13 6.9 7.2 7.3 7.4 7.9 Patterson River, National Water Sports Centre outlet, 13 7.1 7.5 7.6 7.8 8.8 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 7.0 7.2 7.4 7.6 8.1 Bunyip River at North Labertouche Road, 12 6.9 7.1 7.3 7.7 7.9 Labertouche Bunyip River downstream of Cannibal Creek, 12 6.9 7.2 7.3 7.5 7.9 Longwarry North Bunyip Main Drain at Little Road, Iona 12 6.9 7.0 7.1 7.4 7.9 Bunyip River at Healesville Koo Wee Rup Road, 12 7.1 7.5 7.6 7.6 8.2 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 6.1 6.3 7.5 7.8 8.0 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 6.6 7.1 7.3 7.6 7.9 Chinamans Creek at Eastborne Road, Rosebud West 13 7.3 7.4 7.4 7.5 7.7 Deep Creek at Ballarto Road, Rythdale 12 7.0 7.1 7.1 7.1 8.0 Dunns Creek at Marine Drive, Safety Beach 13 7.2 7.4 7.4 7.5 7.9 Lang-Lang River at Drouin-Poowong Road, Athlone 12 6.9 7.2 7.4 7.5 7.9 Lang-Lang River at South Gippsland Highway, Lang 12 7.1 7.2 7.4 7.6 8.3 Lang Main Creek at Boneo Road, Flinders 13 7.4 7.7 7.8 7.9 8.3 Merricks Creek at end Bridge Street, Merricks 13 7.1 7.3 7.4 7.4 7.7 Tarago River at Morrisons Road, Labertouche 12 6.8 7.1 7.3 7.6 7.8 Toomuc Creek at Princes Highway, Pakenham 12 6.6 7.1 7.4 7.5 7.9 Toomuc Creek at Ballarto Road, Rythdale 12 6.6 6.9 6.9 7.2 8.1 Warrangine Creek at Frankston-Flinders Road, 13 6.9 7.2 7.2 7.5 7.7 Hastings Watsons Creek at Dandenong-Hastings Road, 13 6.1 6.9 7.2 7.4 7.6 Somerville Yallock Outfall at South Gippsland Highway, 12 6.7 6.9 7.0 7.1 8.0 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 7.4 7.7 7.8 7.9 8.1 Maribyrnong River at Canning Street, Avondale 12 7.1 7.7 7.8 7.9 8.1 Heights Steele Creek at Rose Avenue, Niddrie 12 7.7 7.9 8.0 8.1 8.3

Stony Creek at Bena Street, Yarraville 12 7.3 7.7 7.9 7.9 8.8 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 7.3 7.4 7.6 7.6 7.9 Kororoit Creek at Racecourse Road, Altona 12 7.4 7.7 7.9 8.1 8.3 Skeleton Creek at Ayr Street, Laverton 12 7.2 7.5 7.5 7.6 7.9 Turbidity (NTU) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 4 7 10 16 89 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 4 10 12 16 26 Brushy Creek at Lower Homestead Road, Wonga 12 5 11 13 20 58 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 7 10 12 19 140 Darebin Creek at Clark Road, Ivanhoe 12 3 6 6 8 13 Diamond Creek at Strathhaven Road, Cottles Bridge 11 7 12 15 39 61 Diamond Creek at Main Road, Eltham 12 5 8 14 50 75 Gardiners Creek at Glenferrie Road, Hawthorn 12 4 8 9 16 100 Jumping Creek at Brysons Road, Wonga Park 12 4 6 7 17 32 Koonung Creek at Bulleen Road, Bulleen 12 4 9 10 15 54 Little Yarra River at Corduroy Road, Yarra Junction 12 10 12 14 16 120 Merri Creek at Summerhill Road, Craigieburn 12 3 5 7 8 9 Merri Creek at Roseneath Street, Yarra Bend 12 3 4 5 8 35 Moonee Ponds Creek at Mt Alexander Road, 12 4 8 9 11 55 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 4 8 14 17 120 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 11 16 20 34 93 Plenty River at Plenty Gorge, South Morang 11 4 6 6 8 43 Plenty River at Henty Road, Lower Plenty 12 8 9 13 21 51 Ruffy Creek at Parker Street, Templestowe 12 3 6 7 11 87 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 4 10 12 38 61 Glen Stringybark Creek at St. Huberts Road, Yering 12 5 7 8 14 32 Wandin Yallock Creek at Killara Road, Gruyere 12 6 6 9 23 41 Watsons Creek at Henley Road, Kangaroo Ground 12 3 4 5 11 53 Watts River at Healesville-Kinglake Road, 12 4 5 7 13 29 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 10 12 15 22 58 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 9 14 19 23 37 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 3 4 4 5 48 Yarra River at Don Road, Launching Place 12 5 6 8 10 52 Yarra River at Everard Park Maroondah Highway, 12 7 11 13 16 28 Healesville

Yarra River at Spadonis Reserve, Coldstream 7 12 15 15 20 39 Yarra River at Warrandyte Road Bridge, Warrandyte 12 4 8 10 12 78 Yarra River at Chandler Highway, Kew 12 7 14 17 21 37 Yarra River at Princes Bridge, South Melbourne 12 5 7 8 10 32 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 7 11 18 28 53 Rowville Dandenong Creek upstream Sheffield Road, 13 6 12 15 19 150 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 5 10 14 16 49 Dandenong Creek at Stud Road, Dandenong North 13 7 16 21 39 151 Dandenong Creek at Pillars Crossing, Dandenong 13 9 13 21 36 96 South Elster Creek at Cochrane Street, Elwood 12 4 5 6 11 130 Eumemmerring Creek at Worsley Road, Bangholme 13 6 8 11 22 72 Hallam Valley Main Drain at South Gippsland 13 4 8 11 17 24 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 3 3 4 7 17 Mile Creek at Cheltenham Road, Keysborough 13 3 6 7 9 28 Mordialloc Creek at end Wells Road, Mordialloc 13 5 11 21 24 40 Patterson River, National Water Sports Centre outlet, 13 10 18 24 37 57 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 4 6 8 9 22 Bunyip River at North Labertouche Road, 12 7 8 10 15 105 Labertouche Bunyip River downstream of Cannibal Creek, 12 8 10 12 15 42 Longwarry North Bunyip Main Drain at Little Road, Iona 12 7 10 11 15 58 Bunyip River at Healesville Koo Wee Rup Road, 12 6 13 16 24 68 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 4 5 7 9 41 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 5 7 11 13 81 Chinamans Creek at Eastborne Road, Rosebud West 13 3 4 5 7 8 Deep Creek at Ballarto Road, Rythdale 12 12 35 47 59 110 Dunns Creek at Marine Drive, Safety Beach 13 2 4 5 7 17 Lang-Lang River at Drouin-Poowong Road, Athlone 12 7 9 12 22 45 Lang-Lang River at South Gippsland Highway, Lang 12 6 14 25 49 130 Lang Main Creek at Boneo Road, Flinders 13 4 4 5 6 11 Merricks Creek at end Bridge Street, Merricks 13 3 5 6 9 22 Tarago River at Morrisons Road, Labertouche 12 4 7 9 11 56 Toomuc Creek at Princes Highway, Pakenham 12 4 11 14 18 53 Toomuc Creek at Ballarto Road, Rythdale 12 6 11 15 37 98 Warrangine Creek at Frankston-Flinders Road, 13 4 7 10 11 17

Hastings Watsons Creek at Dandenong-Hastings Road, 13 4 6 8 12 29 Somerville Yallock Outfall at South Gippsland Highway, 12 9 32 52 62 164 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 5 7 8 9 13 Maribyrnong River at Canning Street, Avondale 12 4 7 10 10 14 Heights Steele Creek at Rose Avenue, Niddrie 12 4 4 4 9 68 Stony Creek at Bena Street, Yarraville 12 4 6 7 9 16 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 3 4 6 9 26 Kororoit Creek at Racecourse Road, Altona 12 7 15 18 30 62 Skeleton Creek at Ayr Street, Laverton 12 5 6 10 13 24 Suspended Solids (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 3 5 7 12 59 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 2 3 4 7 48 Brushy Creek at Lower Homestead Road, Wonga 12 4 6 7 14 36 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 4 6 8 13 51 Darebin Creek at Clark Road, Ivanhoe 12 1 2 4 7 28 Diamond Creek at Strathhaven Road, Cottles Bridge 11 4 4 6 9 22 Diamond Creek at Main Road, Eltham 12 5 8 10 16 36 Gardiners Creek at Glenferrie Road, Hawthorn 12 1 2 4 8 570 Jumping Creek at Brysons Road, Wonga Park 12 2 6 9 12 24 Koonung Creek at Bulleen Road, Bulleen 12 5 8 9 17 34 Little Yarra River at Corduroy Road, Yarra Junction 12 10 15 17 21 110 Merri Creek at Summerhill Road, Craigieburn 12 3 5 7 8 22 Merri Creek at Roseneath Street, Yarra Bend 12 1 1 2 3 100 Moonee Ponds Creek at Mt Alexander Road, 12 1 7 8 12 170 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 3 6 7 11 140 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 7 11 14 32 93 Plenty River at Plenty Gorge, South Morang 11 3 4 4 6 11 Plenty River at Henty Road, Lower Plenty 12 10 12 15 17 24 Ruffy Creek at Parker Street, Templestowe 12 1 2 4 9 26 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 2 4 8 9 14 Glen Stringybark Creek at St. Huberts Road, Yering 12 2 4 5 10 38 Wandin Yallock Creek at Killara Road, Gruyere 12 2 5 10 20 87 Watsons Creek at Henley Road, Kangaroo Ground 12 1 2 3 5 20

Watts River at Healesville-Kinglake Road, 12 1 4 6 9 30 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 5 8 12 16 61 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 5 12 15 19 30 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 2 4 4 7 28 Yarra River at Don Road, Launching Place 12 4 6 8 11 59 Yarra River at Everard Park Maroondah Highway, 12 4 8 11 13 27 Healesville Yarra River at Spadonis Reserve, Coldstream 7 8 10 13 18 28 Yarra River at Warrandyte Road Bridge, Warrandyte 12 2 4 6 11 30 Yarra River at Chandler Highway, Kew 12 10 14 17 19 42 Yarra River at Princes Bridge, South Melbourne 12 4 10 14 19 67 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 4 6 8 10 38 Rowville Dandenong Creek upstream Sheffield Road, 13 4 10 15 18 180 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 5 8 17 18 36 Dandenong Creek at Stud Road, Dandenong North 13 6 12 16 27 59 Dandenong Creek at Pillars Crossing, Dandenong 13 11 15 18 32 70 South Elster Creek at Cochrane Street, Elwood 12 2 4 5 7 87 Eumemmerring Creek at Worsley Road, Bangholme 13 4 8 10 16 62 Hallam Valley Main Drain at South Gippsland 13 2 8 8 12 16 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 4 8 24 33 52 Mile Creek at Cheltenham Road, Keysborough 13 2 4 5 7 28 Mordialloc Creek at end Wells Road, Mordialloc 13 12 22 26 35 44 Patterson River, National Water Sports Centre outlet, 13 16 22 27 31 40 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 2 5 8 10 16 Bunyip River at North Labertouche Road, 12 6 10 13 14 52 Labertouche Bunyip River downstream of Cannibal Creek, 12 5 9 11 14 83 Longwarry North Bunyip Main Drain at Little Road, Iona 12 1 7 9 15 100 Bunyip River at Healesville Koo Wee Rup Road, 12 8 12 14 29 85 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 1 2 4 8 34 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 1 3 5 6 32 Chinamans Creek at Eastborne Road, Rosebud West 13 2 2 4 4 5 Deep Creek at Ballarto Road, Rythdale 12 2 22 38 49 95

Dunns Creek at Marine Drive, Safety Beach 13 2 3 4 6 45 Lang-Lang River at Drouin-Poowong Road, Athlone 12 2 9 12 21 56 Lang-Lang River at South Gippsland Highway, Lang 12 5 12 15 74 580 Lang Main Creek at Boneo Road, Flinders 13 1 2 3 4 12 Merricks Creek at end Bridge Street, Merricks 13 2 4 6 14 46 Tarago River at Morrisons Road, Labertouche 12 5 7 8 10 92 Toomuc Creek at Princes Highway, Pakenham 12 3 4 5 6 36 Toomuc Creek at Ballarto Road, Rythdale 12 3 6 7 12 68 Warrangine Creek at Frankston-Flinders Road, 13 2 4 7 16 74 Hastings Watsons Creek at Dandenong-Hastings Road, 13 2 6 9 11 20 Somerville Yallock Outfall at South Gippsland Highway, 12 16 43 53 64 270 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 2 5 6 12 16 Maribyrnong River at Canning Street, Avondale 12 4 6 9 11 16 Heights Steele Creek at Rose Avenue, Niddrie 12 1 2 4 7 73 Stony Creek at Bena Street, Yarraville 12 2 6 6 11 14 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 2 4 6 8 37 Kororoit Creek at Racecourse Road, Altona 12 15 27 34 47 63 Skeleton Creek at Ayr Street, Laverton 12 3 9 15 16 25 Nitrate as Nitrogen (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.090 0.850 1.450 2.100 3.900 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.005 0.010 0.026 0.035 0.140 Brushy Creek at Lower Homestead Road, Wonga 12 3.400 4.375 5.400 7.375 12.000 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.660 0.810 0.865 1.025 1.300 Darebin Creek at Clark Road, Ivanhoe 12 0.030 0.268 0.425 0.603 1.900 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.005 0.014 0.040 0.040 0.270 Diamond Creek at Main Road, Eltham 12 0.060 0.168 0.200 0.453 0.540 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.350 0.563 0.645 0.868 1.100 Jumping Creek at Brysons Road, Wonga Park 12 0.180 0.370 0.415 0.548 1.500 Koonung Creek at Bulleen Road, Bulleen 12 0.080 0.308 0.445 0.620 0.940 Little Yarra River at Corduroy Road, Yarra Junction 12 0.270 0.305 0.370 0.400 0.470 Merri Creek at Summerhill Road, Craigieburn 12 0.019 0.020 0.030 0.080 0.360 Merri Creek at Roseneath Street, Yarra Bend 12 0.250 0.315 0.440 0.593 1.100 Moonee Ponds Creek at Mt Alexander Road, 12 0.540 0.958 1.300 1.850 2.600 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.570 0.798 1.140 2.175 3.100

Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 1.100 1.750 2.900 3.250 3.400 Plenty River at Plenty Gorge, South Morang 12 0.005 0.010 0.010 0.060 0.250 Plenty River at Henty Road, Lower Plenty 12 0.020 0.173 0.250 0.300 0.490 Ruffy Creek at Parker Street, Templestowe 12 0.500 0.818 1.000 1.200 1.700 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.020 0.039 0.050 0.185 0.520 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.040 0.083 0.145 0.520 1.200 Wandin Yallock Creek at Killara Road, Gruyere 12 0.230 0.483 1.010 1.250 2.600 Watsons Creek at Henley Road, Kangaroo Ground 12 0.005 0.020 0.045 0.138 0.430 Watts River at Healesville-Kinglake Road, 12 0.140 0.270 0.320 0.433 0.780 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.620 0.690 0.810 0.873 1.100 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.560 0.598 0.735 0.788 0.910 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.005 0.190 0.240 0.283 0.420 Yarra River at Don Road, Launching Place 12 0.180 0.230 0.290 0.325 0.460 Yarra River at Everard Park Maroondah Highway, 12 0.230 0.325 0.400 0.465 0.630 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.510 0.560 0.590 0.645 0.720 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.320 0.548 0.665 0.763 1.000 Yarra River at Chandler Highway, Kew 12 0.340 0.415 0.655 0.763 0.980 Yarra River at Princes Bridge, South Melbourne 12 0.250 0.300 0.400 0.533 0.760 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.210 0.280 0.610 0.710 1.100 Rowville Dandenong Creek upstream Sheffield Road, 13 0.830 1.000 1.200 1.200 1.500 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.036 0.470 0.830 1.100 1.700 Dandenong Creek at Stud Road, Dandenong North 13 0.180 0.590 0.690 0.800 1.200 Dandenong Creek at Pillars Crossing, Dandenong 13 0.089 0.550 0.630 0.800 1.200 South Elster Creek at Cochrane Street, Elwood 12 0.880 0.933 1.080 1.300 1.900 Eumemmerring Creek at Worsley Road, Bangholme 13 0.027 0.580 0.790 1.200 1.800 Hallam Valley Main Drain at South Gippsland 13 0.070 0.200 0.320 0.520 0.800 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.020 0.030 0.050 0.200 0.540 Mile Creek at Cheltenham Road, Keysborough 13 0.180 0.530 0.690 1.000 1.200 Mordialloc Creek at end Wells Road, Mordialloc 13 0.050 0.430 0.760 1.000 1.500 Patterson River, National Water Sports Centre outlet, 13 0.070 0.350 0.610 1.100 1.400 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.002 0.040 0.070 0.200 0.860 Bunyip River at North Labertouche Road, 12 0.220 0.273 0.320 0.393 0.540 Labertouche

Bunyip River downstream of Cannibal Creek, 12 0.130 0.205 0.245 0.280 0.400 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.110 0.150 0.230 0.288 0.430 Bunyip River at Healesville Koo Wee Rup Road, 12 0.050 0.225 0.355 0.603 0.910 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.080 0.138 0.175 0.233 0.440 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.005 0.048 0.154 0.318 0.650 Chinamans Creek at Eastborne Road, Rosebud West 13 0.062 0.280 0.470 0.570 1.400 Deep Creek at Ballarto Road, Rythdale 12 0.140 0.180 0.565 0.778 1.200 Dunns Creek at Marine Drive, Safety Beach 13 0.002 0.030 0.070 0.280 0.510 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.050 0.308 0.990 1.350 2.100 Lang-Lang River at South Gippsland Highway, Lang 12 0.040 0.130 0.745 1.325 2.400 Lang Main Creek at Boneo Road, Flinders 13 0.004 0.090 0.150 0.240 0.480 Merricks Creek at end Bridge Street, Merricks 13 0.007 0.040 0.040 0.080 0.620 Tarago River at Morrisons Road, Labertouche 12 0.030 0.118 0.210 0.263 0.480 Toomuc Creek at Princes Highway, Pakenham 12 0.080 0.160 0.195 0.240 0.440 Toomuc Creek at Ballarto Road, Rythdale 12 0.020 0.068 0.110 0.340 0.930 Warrangine Creek at Frankston-Flinders Road, 13 0.020 0.100 0.180 0.230 0.350 Hastings Watsons Creek at Dandenong-Hastings Road, 13 2.300 8.100 65.000 98.000 220.000 Somerville Yallock Outfall at South Gippsland Highway, 12 0.020 0.325 2.450 4.525 11.000 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.005 0.016 0.210 0.570 0.780 Maribyrnong River at Canning Street, Avondale 12 0.005 0.018 0.185 0.573 0.980 Heights Steele Creek at Rose Avenue, Niddrie 12 0.020 0.078 0.165 0.328 0.860 Stony Creek at Bena Street, Yarraville 12 0.320 0.925 1.100 1.325 2.200 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.005 0.030 0.055 0.113 0.280 Kororoit Creek at Racecourse Road, Altona 12 0.005 0.105 0.460 0.990 1.400 Skeleton Creek at Ayr Street, Laverton 12 0.005 0.010 0.020 0.029 0.220 Nitrite as Nitrogen (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.005 0.011 0.014 0.022 0.029 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.001 0.004 0.005 0.006 0.011 Brushy Creek at Lower Homestead Road, Wonga 12 0.005 0.010 0.014 0.031 0.270 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.004 0.004 0.006 0.006 0.007 Darebin Creek at Clark Road, Ivanhoe 12 0.003 0.007 0.011 0.015 0.066 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.003 0.006 0.007 0.009 0.018

Diamond Creek at Main Road, Eltham 12 0.006 0.009 0.011 0.016 0.071 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.022 0.028 0.045 0.059 0.910 Jumping Creek at Brysons Road, Wonga Park 12 0.003 0.005 0.006 0.011 0.017 Koonung Creek at Bulleen Road, Bulleen 12 0.010 0.013 0.015 0.022 0.030 Little Yarra River at Corduroy Road, Yarra Junction 12 0.001 0.003 0.005 0.005 0.006 Merri Creek at Summerhill Road, Craigieburn 12 0.003 0.004 0.004 0.007 0.014 Merri Creek at Roseneath Street, Yarra Bend 12 0.007 0.008 0.011 0.014 0.052 Moonee Ponds Creek at Mt Alexander Road, 12 0.016 0.021 0.064 0.097 0.130 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.014 0.019 0.026 0.039 0.055 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.019 0.023 0.052 0.073 0.150 Plenty River at Plenty Gorge, South Morang 12 0.001 0.004 0.005 0.007 0.019 Plenty River at Henty Road, Lower Plenty 12 0.003 0.007 0.010 0.015 0.037 Ruffy Creek at Parker Street, Templestowe 12 0.013 0.016 0.022 0.028 0.053 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.001 0.003 0.004 0.006 0.011 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.002 0.003 0.004 0.005 0.012 Wandin Yallock Creek at Killara Road, Gruyere 12 0.004 0.005 0.006 0.011 0.018 Watsons Creek at Henley Road, Kangaroo Ground 12 0.001 0.003 0.004 0.006 0.009 Watts River at Healesville-Kinglake Road, 12 0.002 0.004 0.005 0.005 0.008 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.003 0.004 0.005 0.006 0.007 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.004 0.005 0.005 0.006 0.007 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.001 0.003 0.004 0.005 0.008 Yarra River at Don Road, Launching Place 12 0.003 0.004 0.004 0.005 0.005 Yarra River at Everard Park Maroondah Highway, 12 0.003 0.004 0.004 0.006 0.007 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.005 0.006 0.008 0.010 0.011 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.003 0.005 0.006 0.007 0.008 Yarra River at Chandler Highway, Kew 12 0.004 0.006 0.008 0.010 0.013 Yarra River at Princes Bridge, South Melbourne 12 0.006 0.011 0.013 0.013 0.023 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.006 0.008 0.010 0.012 0.033 Rowville Dandenong Creek upstream Sheffield Road, 13 0.001 0.001 0.003 0.006 0.007 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.005 0.010 0.015 0.022 0.060 Dandenong Creek at Stud Road, Dandenong North 13 0.005 0.006 0.007 0.011 0.033 Dandenong Creek at Pillars Crossing, Dandenong 13 0.008 0.011 0.016 0.022 0.049 South Elster Creek at Cochrane Street, Elwood 12 0.008 0.013 0.019 0.026 0.056 Eumemmerring Creek at Worsley Road, Bangholme 13 0.003 0.007 0.012 0.019 0.039 Hallam Valley Main Drain at South Gippsland 13 0.004 0.006 0.010 0.012 0.018

Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.003 0.004 0.006 0.027 1.100 Mile Creek at Cheltenham Road, Keysborough 13 0.014 0.026 0.035 0.065 0.180 Mordialloc Creek at end Wells Road, Mordialloc 13 0.006 0.017 0.029 0.048 0.072 Patterson River, National Water Sports Centre outlet, 13 0.007 0.014 0.018 0.025 0.110 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.001 0.004 0.005 0.007 0.038 Bunyip River at North Labertouche Road, 12 0.002 0.003 0.004 0.004 0.006 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.002 0.004 0.004 0.005 0.012 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.003 0.004 0.005 0.007 0.013 Bunyip River at Healesville Koo Wee Rup Road, 12 0.003 0.004 0.005 0.009 0.011 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.001 0.002 0.004 0.006 0.009 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.002 0.004 0.004 0.009 0.015 Chinamans Creek at Eastborne Road, Rosebud West 13 0.004 0.009 0.012 0.016 0.026 Deep Creek at Ballarto Road, Rythdale 12 0.005 0.007 0.009 0.033 0.051 Dunns Creek at Marine Drive, Safety Beach 13 0.001 0.003 0.004 0.007 0.010 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.004 0.009 0.020 0.035 0.150 Lang-Lang River at South Gippsland Highway, Lang 12 0.004 0.006 0.008 0.016 0.077 Lang Main Creek at Boneo Road, Flinders 13 0.002 0.004 0.005 0.005 0.008 Merricks Creek at end Bridge Street, Merricks 13 0.002 0.003 0.004 0.005 0.010 Tarago River at Morrisons Road, Labertouche 12 0.003 0.004 0.006 0.008 0.015 Toomuc Creek at Princes Highway, Pakenham 12 0.005 0.005 0.007 0.007 0.012 Toomuc Creek at Ballarto Road, Rythdale 12 0.002 0.003 0.004 0.006 0.027 Warrangine Creek at Frankston-Flinders Road, 13 0.002 0.004 0.004 0.006 0.009 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.014 0.028 0.059 0.084 0.320 Somerville Yallock Outfall at South Gippsland Highway, 12 0.003 0.011 0.013 0.060 0.130 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.001 0.003 0.007 0.007 0.016 Maribyrnong River at Canning Street, Avondale 12 0.002 0.003 0.006 0.007 0.014 Heights Steele Creek at Rose Avenue, Niddrie 12 0.003 0.004 0.005 0.006 0.075 Stony Creek at Bena Street, Yarraville 12 0.041 0.062 0.083 0.115 0.420 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.002 0.003 0.004 0.005 0.025 Kororoit Creek at Racecourse Road, Altona 12 0.005 0.009 0.019 0.034 0.051 Skeleton Creek at Ayr Street, Laverton 12 0.002 0.003 0.003 0.005 0.014

Total Ammonia as Nitrogen (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.009 0.016 0.021 0.033 0.094 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.001 0.009 0.014 0.019 0.029 Brushy Creek at Lower Homestead Road, Wonga 12 0.010 0.019 0.022 0.036 2.200 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.001 0.009 0.016 0.021 0.036 Darebin Creek at Clark Road, Ivanhoe 12 0.004 0.015 0.070 0.100 0.170 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.009 0.018 0.025 0.043 0.075 Diamond Creek at Main Road, Eltham 12 0.013 0.035 0.057 0.064 0.260 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.032 0.056 0.082 0.125 0.520 Jumping Creek at Brysons Road, Wonga Park 12 0.013 0.016 0.019 0.022 0.079 Koonung Creek at Bulleen Road, Bulleen 12 0.013 0.022 0.047 0.049 0.094 Little Yarra River at Corduroy Road, Yarra Junction 12 0.001 0.007 0.011 0.018 0.035 Merri Creek at Summerhill Road, Craigieburn 12 0.001 0.015 0.021 0.027 1.200 Merri Creek at Roseneath Street, Yarra Bend 12 0.051 0.077 0.081 0.088 0.450 Moonee Ponds Creek at Mt Alexander Road, 12 0.046 0.079 0.103 0.163 0.510 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.039 0.044 0.048 0.064 0.110 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.026 0.035 0.049 0.076 1.200 Plenty River at Plenty Gorge, South Morang 12 0.005 0.008 0.015 0.019 0.130 Plenty River at Henty Road, Lower Plenty 12 0.004 0.019 0.032 0.052 0.200 Ruffy Creek at Parker Street, Templestowe 12 0.015 0.033 0.078 0.130 0.520 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.001 0.009 0.011 0.016 0.030 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.003 0.006 0.012 0.014 0.019 Wandin Yallock Creek at Killara Road, Gruyere 12 0.002 0.012 0.018 0.022 0.038 Watsons Creek at Henley Road, Kangaroo Ground 12 0.001 0.005 0.010 0.012 0.027 Watts River at Healesville-Kinglake Road, 12 0.009 0.012 0.018 0.025 0.086 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.001 0.011 0.013 0.016 0.054 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.005 0.015 0.019 0.021 0.039 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.001 0.004 0.008 0.009 0.027 Yarra River at Don Road, Launching Place 12 0.001 0.004 0.009 0.013 0.016 Yarra River at Everard Park Maroondah Highway, 12 0.004 0.010 0.014 0.017 0.024 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.019 0.023 0.028 0.037 0.058 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.001 0.010 0.013 0.017 0.023 Yarra River at Chandler Highway, Kew 12 0.020 0.032 0.041 0.056 0.095 Yarra River at Princes Bridge, South Melbourne 12 0.042 0.069 0.091 0.120 0.170 Dandenong Catchment

Corhanwarrabul Creek at Wellington Road, 13 0.001 0.017 0.018 0.036 0.100 Rowville Dandenong Creek upstream Sheffield Road, 13 0.001 0.009 0.015 0.018 0.063 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.006 0.013 0.040 0.065 1.400 Dandenong Creek at Stud Road, Dandenong North 13 0.008 0.019 0.020 0.059 0.069 Dandenong Creek at Pillars Crossing, Dandenong 13 0.019 0.042 0.072 0.110 0.230 South Elster Creek at Cochrane Street, Elwood 12 0.005 0.007 0.011 0.018 0.350 Eumemmerring Creek at Worsley Road, Bangholme 13 0.011 0.022 0.040 0.077 0.370 Hallam Valley Main Drain at South Gippsland 13 0.011 0.015 0.027 0.048 0.120 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.013 0.032 0.037 0.770 7.900 Mile Creek at Cheltenham Road, Keysborough 13 0.034 0.053 0.072 0.120 0.740 Mordialloc Creek at end Wells Road, Mordialloc 13 0.025 0.086 0.110 0.250 0.400 Patterson River, National Water Sports Centre outlet, 13 0.006 0.060 0.100 0.130 0.730 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.006 0.013 0.018 0.036 0.048 Bunyip River at North Labertouche Road, 12 0.009 0.015 0.018 0.022 0.024 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.002 0.011 0.016 0.020 0.120 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.001 0.015 0.022 0.027 0.160 Bunyip River at Healesville Koo Wee Rup Road, 12 0.001 0.007 0.017 0.029 0.063 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.004 0.009 0.018 0.023 0.026 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.001 0.008 0.013 0.015 0.044 Chinamans Creek at Eastborne Road, Rosebud West 13 0.021 0.039 0.059 0.094 0.280 Deep Creek at Ballarto Road, Rythdale 12 0.017 0.038 0.062 0.069 0.130 Dunns Creek at Marine Drive, Safety Beach 13 0.004 0.012 0.016 0.027 0.037 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.020 0.033 0.059 0.163 0.740 Lang-Lang River at South Gippsland Highway, Lang 12 0.012 0.021 0.030 0.043 0.290 Lang Main Creek at Boneo Road, Flinders 13 0.001 0.013 0.015 0.019 0.024 Merricks Creek at end Bridge Street, Merricks 13 0.007 0.015 0.017 0.027 0.074 Tarago River at Morrisons Road, Labertouche 12 0.008 0.017 0.026 0.037 0.200 Toomuc Creek at Princes Highway, Pakenham 12 0.010 0.019 0.025 0.038 0.058 Toomuc Creek at Ballarto Road, Rythdale 12 0.001 0.006 0.010 0.015 0.069 Warrangine Creek at Frankston-Flinders Road, 13 0.009 0.014 0.017 0.024 0.036 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.011 0.024 0.058 0.097 0.550 Somerville Yallock Outfall at South Gippsland Highway, 12 0.025 0.050 0.060 0.136 0.800 Monomeith

Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.005 0.013 0.022 0.035 0.220 Maribyrnong River at Canning Street, Avondale 12 0.006 0.009 0.018 0.027 0.140 Heights Steele Creek at Rose Avenue, Niddrie 12 0.004 0.009 0.013 0.016 0.280 Stony Creek at Bena Street, Yarraville 12 0.063 0.475 0.865 1.900 210.000 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.004 0.007 0.014 0.017 0.160 Kororoit Creek at Racecourse Road, Altona 12 0.004 0.047 0.071 0.245 1.800 Skeleton Creek at Ayr Street, Laverton 12 0.004 0.013 0.024 0.050 0.110 Total Kjeldahl Nitrogen as Nitrogen n Minimum 25th 50th 75th Maximum (mg/L) Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.700 0.878 0.965 1.150 1.800 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.320 0.570 0.680 0.755 1.800 Brushy Creek at Lower Homestead Road, Wonga 12 0.780 0.975 1.100 1.225 3.000 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.260 0.305 0.340 0.440 0.650 Darebin Creek at Clark Road, Ivanhoe 12 0.400 0.635 0.695 0.753 1.200 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.680 0.825 1.100 1.350 2.600 Diamond Creek at Main Road, Eltham 12 0.600 0.685 0.835 1.200 1.300 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.520 0.673 0.775 1.100 3.800 Jumping Creek at Brysons Road, Wonga Park 12 0.630 0.695 0.760 0.923 1.400 Koonung Creek at Bulleen Road, Bulleen 12 0.620 0.683 0.755 0.823 1.600 Little Yarra River at Corduroy Road, Yarra Junction 12 0.350 0.388 0.405 0.493 0.980 Merri Creek at Summerhill Road, Craigieburn 12 0.600 0.778 0.875 0.938 3.900 Merri Creek at Roseneath Street, Yarra Bend 12 0.620 0.650 0.665 0.723 2.000 Moonee Ponds Creek at Mt Alexander Road, 12 0.620 0.760 0.970 1.325 2.400 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.490 0.650 0.800 0.985 1.500 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.730 0.893 0.990 1.125 1.800 Plenty River at Plenty Gorge, South Morang 12 0.710 0.820 0.880 1.025 1.400 Plenty River at Henty Road, Lower Plenty 12 0.580 0.693 0.785 0.848 1.200 Ruffy Creek at Parker Street, Templestowe 12 0.580 0.788 0.820 0.843 1.000 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.400 0.560 0.700 0.860 1.200 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.400 0.460 0.495 0.645 1.100 Wandin Yallock Creek at Killara Road, Gruyere 12 0.340 0.390 0.470 0.598 0.840 Watsons Creek at Henley Road, Kangaroo Ground 12 0.240 0.298 0.380 0.795 0.940 Watts River at Healesville-Kinglake Road, 12 0.210 0.350 0.410 0.468 0.800 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.310 0.338 0.360 0.445 0.640 Road, Yellingbo

Woori Yallock Creek at Warburton Highway, Woori 12 0.300 0.380 0.405 0.490 0.790 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.180 0.248 0.275 0.318 0.450 Yarra River at Don Road, Launching Place 12 0.210 0.258 0.295 0.408 0.610 Yarra River at Everard Park Maroondah Highway, 12 0.260 0.318 0.335 0.415 0.750 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.330 0.410 0.460 0.515 0.920 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.300 0.353 0.405 0.483 0.640 Yarra River at Chandler Highway, Kew 12 0.400 0.453 0.555 0.680 0.830 Yarra River at Princes Bridge, South Melbourne 12 0.500 0.535 0.555 0.630 1.100 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.470 0.540 0.670 0.710 0.890 Rowville Dandenong Creek upstream Sheffield Road, 13 0.280 0.290 0.400 0.640 1.900 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.410 0.720 0.750 0.830 2.600 Dandenong Creek at Stud Road, Dandenong North 13 0.450 0.550 0.700 0.780 1.100 Dandenong Creek at Pillars Crossing, Dandenong 13 0.560 0.800 0.900 0.970 1.100 South Elster Creek at Cochrane Street, Elwood 12 0.390 0.645 0.745 0.833 2.000 Eumemmerring Creek at Worsley Road, Bangholme 13 0.790 0.830 0.910 0.910 1.200 Hallam Valley Main Drain at South Gippsland 13 0.560 0.610 0.660 0.760 1.000 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.500 0.550 0.690 1.300 17.000 Mile Creek at Cheltenham Road, Keysborough 13 0.550 0.720 0.840 0.990 1.100 Mordialloc Creek at end Wells Road, Mordialloc 13 0.530 0.860 0.920 1.100 1.400 Patterson River, National Water Sports Centre outlet, 13 0.650 0.780 0.920 0.980 2.400 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.680 0.820 0.890 0.980 1.100 Bunyip River at North Labertouche Road, 12 0.110 0.355 0.380 0.500 1.100 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.250 0.370 0.460 0.605 1.600 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.220 0.368 0.460 0.558 2.100 Bunyip River at Healesville Koo Wee Rup Road, 12 0.370 0.428 0.545 0.650 0.940 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.240 0.293 0.350 0.510 0.870 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.360 0.455 0.550 0.673 1.000 Chinamans Creek at Eastborne Road, Rosebud West 13 0.580 0.640 0.760 1.100 1.400 Deep Creek at Ballarto Road, Rythdale 12 0.690 1.200 1.350 1.700 2.000 Dunns Creek at Marine Drive, Safety Beach 13 0.420 0.530 0.580 0.700 0.970 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.290 0.628 1.100 1.725 2.900 Lang-Lang River at South Gippsland Highway, Lang 12 0.840 1.075 1.200 1.525 4.200 Lang

Main Creek at Boneo Road, Flinders 13 0.340 0.360 0.450 0.480 0.650 Merricks Creek at end Bridge Street, Merricks 13 0.130 0.640 0.770 0.830 2.200 Tarago River at Morrisons Road, Labertouche 12 0.200 0.418 0.505 0.590 2.000 Toomuc Creek at Princes Highway, Pakenham 12 0.510 0.625 0.670 0.760 1.800 Toomuc Creek at Ballarto Road, Rythdale 12 0.460 0.625 0.685 0.798 1.200 Warrangine Creek at Frankston-Flinders Road, 13 0.600 0.680 0.840 0.970 3.300 Hastings Watsons Creek at Dandenong-Hastings Road, 13 1.200 1.300 1.500 1.800 3.400 Somerville Yallock Outfall at South Gippsland Highway, 12 0.540 1.275 1.500 1.925 2.600 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.630 0.700 0.775 1.003 1.200 Maribyrnong River at Canning Street, Avondale 12 0.640 0.670 0.740 0.755 1.000 Heights Steele Creek at Rose Avenue, Niddrie 12 0.340 0.430 0.520 0.595 1.500 Stony Creek at Bena Street, Yarraville 12 0.640 1.250 1.700 3.550 1400.000 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.490 0.518 0.575 0.675 1.100 Kororoit Creek at Racecourse Road, Altona 12 0.780 0.840 0.935 1.425 4.800 Skeleton Creek at Ayr Street, Laverton 12 0.560 0.728 0.785 0.865 1.400 Total Nitrogen (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 1.146 1.838 2.458 3.446 5.214 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.320 0.605 0.715 0.824 1.821 Brushy Creek at Lower Homestead Road, Wonga 12 1.470 4.738 6.136 8.588 12.900 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 1.114 1.209 1.304 1.437 1.776 Darebin Creek at Clark Road, Ivanhoe 12 0.433 0.977 1.199 1.352 2.960 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.730 0.845 1.288 1.398 2.647 Diamond Creek at Main Road, Eltham 12 0.765 0.902 1.148 1.466 1.754 Gardiners Creek at Glenferrie Road, Hawthorn 12 1.127 1.413 1.729 2.249 4.532 Jumping Creek at Brysons Road, Wonga Park 12 1.142 1.218 1.322 1.685 2.717 Koonung Creek at Bulleen Road, Bulleen 12 0.764 1.221 1.567 1.707 1.881 Little Yarra River at Corduroy Road, Yarra Junction 12 0.673 0.746 0.761 0.848 1.370 Merri Creek at Summerhill Road, Craigieburn 12 0.734 0.814 0.950 1.167 3.958 Merri Creek at Roseneath Street, Yarra Bend 12 0.921 0.987 1.255 1.371 3.120 Moonee Ponds Creek at Mt Alexander Road, 12 1.680 1.960 2.863 3.175 3.483 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 1.134 1.518 2.291 3.242 4.850 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 1.850 3.468 4.012 4.214 4.419 Plenty River at Plenty Gorge, South Morang 12 0.725 0.827 0.954 1.149 1.414 Plenty River at Henty Road, Lower Plenty 12 0.795 0.975 1.280 1.503 1.790

Ruffy Creek at Parker Street, Templestowe 12 1.347 1.665 1.809 1.983 2.720 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.420 0.632 0.743 1.044 1.731 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.524 0.595 0.774 0.961 2.920 Wandin Yallock Creek at Killara Road, Gruyere 12 0.775 0.849 1.496 1.750 3.232 Watsons Creek at Henley Road, Kangaroo Ground 12 0.263 0.348 0.428 0.922 1.680 Watts River at Healesville-Kinglake Road, 12 0.514 0.690 0.748 0.830 1.586 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.934 1.167 1.284 1.452 1.970 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.944 1.080 1.186 1.582 1.860 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.188 0.472 0.523 0.652 0.776 Yarra River at Don Road, Launching Place 12 0.440 0.539 0.559 0.706 1.750 Yarra River at Everard Park Maroondah Highway, 12 0.563 0.682 0.744 0.889 1.460 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.931 0.978 1.145 1.375 1.649 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.633 1.075 1.168 1.277 1.477 Yarra River at Chandler Highway, Kew 12 0.777 0.858 1.300 1.411 1.660 Yarra River at Princes Bridge, South Melbourne 12 0.826 0.928 1.137 1.356 1.830 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.736 0.912 1.420 1.543 1.910 Rowville Dandenong Creek upstream Sheffield Road, 13 1.140 1.443 1.590 1.645 3.470 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.731 1.590 1.662 2.211 3.130 Dandenong Creek at Stud Road, Dandenong North 13 0.827 1.237 1.356 1.655 2.311 Dandenong Creek at Pillars Crossing, Dandenong 13 1.216 1.396 1.490 1.720 2.328 South Elster Creek at Cochrane Street, Elwood 12 1.313 1.657 1.867 2.309 3.160 Eumemmerring Creek at Worsley Road, Bangholme 13 0.842 1.595 1.659 2.197 3.120 Hallam Valley Main Drain at South Gippsland 13 0.775 0.921 1.130 1.226 1.980 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.553 0.576 0.776 1.557 17.370 Mile Creek at Cheltenham Road, Keysborough 13 0.934 1.339 1.565 1.965 2.270 Mordialloc Creek at end Wells Road, Mordialloc 13 0.586 1.311 1.792 2.234 2.948 Patterson River, National Water Sports Centre outlet, 13 0.993 1.454 1.570 2.195 3.910 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.883 0.950 1.140 1.450 1.878 Bunyip River at North Labertouche Road, 12 0.423 0.612 0.746 0.800 1.646 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.524 0.580 0.734 0.818 1.982 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.483 0.538 0.705 0.774 2.543 Bunyip River at Healesville Koo Wee Rup Road, 12 0.515 0.721 0.894 1.222 1.789

Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.325 0.419 0.544 0.710 1.317 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.362 0.533 0.744 0.914 1.645 Chinamans Creek at Eastborne Road, Rosebud West 13 0.670 1.116 1.242 1.687 2.619 Deep Creek at Ballarto Road, Rythdale 12 1.431 1.703 1.906 2.233 3.151 Dunns Creek at Marine Drive, Safety Beach 13 0.523 0.566 0.743 0.977 1.270 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.587 1.456 2.118 3.435 4.430 Lang-Lang River at South Gippsland Highway, Lang 12 0.986 1.428 2.330 3.131 4.677 Lang Main Creek at Boneo Road, Flinders 13 0.422 0.528 0.640 0.685 1.136 Merricks Creek at end Bridge Street, Merricks 13 0.194 0.683 0.844 1.210 2.370 Tarago River at Morrisons Road, Labertouche 12 0.324 0.579 0.659 0.832 2.445 Toomuc Creek at Princes Highway, Pakenham 12 0.595 0.812 0.866 1.205 2.242 Toomuc Creek at Ballarto Road, Rythdale 12 0.526 0.708 0.837 1.108 2.157 Warrangine Creek at Frankston-Flinders Road, 13 0.760 0.914 1.230 1.660 3.427 Hastings Watsons Creek at Dandenong-Hastings Road, 13 3.523 9.414 66.630 99.878 223.720 Somerville Yallock Outfall at South Gippsland Highway, 12 1.163 1.772 4.212 5.978 13.385 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.642 0.891 1.187 1.415 1.727 Maribyrnong River at Canning Street, Avondale 12 0.654 0.750 1.156 1.267 1.729 Heights Steele Creek at Rose Avenue, Niddrie 12 0.414 0.563 0.660 0.921 2.435 Stony Creek at Bena Street, Yarraville 12 1.498 1.894 3.033 4.314 1401.520 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.554 0.581 0.672 0.776 1.450 Kororoit Creek at Racecourse Road, Altona 12 0.815 1.399 1.563 2.399 5.169 Skeleton Creek at Ayr Street, Laverton 12 0.584 0.776 0.804 0.979 1.425 Total Phosphorus (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.200 0.270 0.315 0.373 0.450 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.028 0.035 0.055 0.059 0.110 Brushy Creek at Lower Homestead Road, Wonga 12 0.330 0.433 0.535 0.638 1.100 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.023 0.028 0.034 0.039 0.140 Darebin Creek at Clark Road, Ivanhoe 12 0.049 0.068 0.077 0.113 0.230 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.025 0.054 0.073 0.079 0.240 Diamond Creek at Main Road, Eltham 12 0.052 0.066 0.095 0.102 0.150 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.056 0.069 0.093 0.133 0.750 Jumping Creek at Brysons Road, Wonga Park 12 0.025 0.046 0.055 0.072 0.110 Koonung Creek at Bulleen Road, Bulleen 12 0.079 0.085 0.110 0.125 0.170

Little Yarra River at Corduroy Road, Yarra Junction 12 0.019 0.031 0.035 0.039 0.120 Merri Creek at Summerhill Road, Craigieburn 12 0.033 0.048 0.051 0.095 0.680 Merri Creek at Roseneath Street, Yarra Bend 12 0.067 0.074 0.110 0.110 0.350 Moonee Ponds Creek at Mt Alexander Road, 12 0.061 0.074 0.090 0.148 0.490 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.180 0.208 0.335 0.415 0.670 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.110 0.170 0.280 0.365 0.790 Plenty River at Plenty Gorge, South Morang 12 0.030 0.037 0.046 0.063 0.100 Plenty River at Henty Road, Lower Plenty 12 0.062 0.071 0.082 0.088 0.120 Ruffy Creek at Parker Street, Templestowe 12 0.110 0.160 0.185 0.203 0.280 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.008 0.026 0.029 0.063 0.110 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.003 0.022 0.027 0.040 0.084 Wandin Yallock Creek at Killara Road, Gruyere 12 0.021 0.030 0.041 0.057 0.110 Watsons Creek at Henley Road, Kangaroo Ground 12 0.009 0.017 0.027 0.039 0.067 Watts River at Healesville-Kinglake Road, 12 0.003 0.033 0.038 0.046 0.076 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.011 0.031 0.036 0.044 0.110 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.011 0.035 0.042 0.049 0.064 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.008 0.016 0.019 0.026 0.041 Yarra River at Don Road, Launching Place 12 0.008 0.021 0.027 0.032 0.060 Yarra River at Everard Park Maroondah Highway, 12 0.003 0.027 0.031 0.033 0.062 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.040 0.050 0.053 0.058 0.085 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.042 0.044 0.051 0.053 0.092 Yarra River at Chandler Highway, Kew 12 0.055 0.064 0.077 0.092 0.120 Yarra River at Princes Bridge, South Melbourne 12 0.063 0.081 0.102 0.110 0.280 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.058 0.063 0.070 0.085 0.140 Rowville Dandenong Creek upstream Sheffield Road, 13 0.022 0.028 0.035 0.041 0.290 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.077 0.092 0.100 0.140 0.270 Dandenong Creek at Stud Road, Dandenong North 13 0.062 0.071 0.095 0.110 0.180 Dandenong Creek at Pillars Crossing, Dandenong 13 0.069 0.079 0.092 0.110 0.160 South Elster Creek at Cochrane Street, Elwood 12 0.074 0.079 0.100 0.120 0.350 Eumemmerring Creek at Worsley Road, Bangholme 13 0.099 0.160 0.190 0.230 0.470 Hallam Valley Main Drain at South Gippsland 13 0.030 0.037 0.044 0.057 0.066 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.110 0.160 0.180 0.220 1.500 Mile Creek at Cheltenham Road, Keysborough 13 0.061 0.075 0.098 0.130 0.180 Mordialloc Creek at end Wells Road, Mordialloc 13 0.120 0.150 0.160 0.230 0.330

Patterson River, National Water Sports Centre outlet, 13 0.076 0.110 0.120 0.130 0.340 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.024 0.034 0.042 0.055 0.250 Bunyip River at North Labertouche Road, 12 0.003 0.019 0.022 0.027 0.082 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.011 0.027 0.036 0.045 0.180 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.015 0.028 0.037 0.047 0.240 Bunyip River at Healesville Koo Wee Rup Road, 12 0.021 0.037 0.041 0.070 0.140 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.006 0.020 0.026 0.041 0.081 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.014 0.039 0.043 0.057 0.100 Chinamans Creek at Eastborne Road, Rosebud West 13 0.023 0.038 0.057 0.086 0.160 Deep Creek at Ballarto Road, Rythdale 12 0.250 0.338 0.410 0.618 0.700 Dunns Creek at Marine Drive, Safety Beach 13 0.027 0.030 0.038 0.044 0.077 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.050 0.090 0.150 0.198 0.360 Lang-Lang River at South Gippsland Highway, Lang 12 0.120 0.148 0.165 0.208 0.560 Lang Main Creek at Boneo Road, Flinders 13 0.012 0.018 0.024 0.029 0.045 Merricks Creek at end Bridge Street, Merricks 13 0.023 0.035 0.042 0.072 0.270 Tarago River at Morrisons Road, Labertouche 12 0.014 0.034 0.042 0.053 0.240 Toomuc Creek at Princes Highway, Pakenham 12 0.034 0.041 0.049 0.057 0.170 Toomuc Creek at Ballarto Road, Rythdale 12 0.015 0.039 0.049 0.068 0.150 Warrangine Creek at Frankston-Flinders Road, 13 0.026 0.036 0.045 0.052 0.300 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.060 0.220 0.300 0.440 0.550 Somerville Yallock Outfall at South Gippsland Highway, 12 0.065 0.110 0.170 0.285 0.400 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.027 0.039 0.049 0.070 0.100 Maribyrnong River at Canning Street, Avondale 12 0.030 0.040 0.043 0.055 0.065 Heights Steele Creek at Rose Avenue, Niddrie 12 0.027 0.040 0.052 0.072 0.250 Stony Creek at Bena Street, Yarraville 12 0.220 0.423 0.650 0.858 1.800 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.027 0.039 0.046 0.050 0.120 Kororoit Creek at Racecourse Road, Altona 12 0.120 0.148 0.190 0.220 0.660 Skeleton Creek at Ayr Street, Laverton 12 0.094 0.125 0.145 0.213 0.580 Soluble Reactive Phosphorus as n Minimum 25th 50th 75th Maximum Phosphorus (mg/L) Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.120 0.170 0.200 0.255 0.310 Warrandyte

Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.002 0.002 0.003 0.004 0.004 Brushy Creek at Lower Homestead Road, Wonga 12 0.210 0.343 0.455 0.558 0.870 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.002 0.002 0.004 0.006 0.010 Darebin Creek at Clark Road, Ivanhoe 12 0.007 0.028 0.035 0.054 0.130 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.002 0.002 0.002 0.004 0.015 Diamond Creek at Main Road, Eltham 12 0.007 0.011 0.013 0.016 0.021 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.012 0.021 0.033 0.053 0.140 Jumping Creek at Brysons Road, Wonga Park 12 0.004 0.012 0.015 0.020 0.026 Koonung Creek at Bulleen Road, Bulleen 12 0.019 0.028 0.039 0.053 0.059 Little Yarra River at Corduroy Road, Yarra Junction 12 0.002 0.002 0.002 0.004 0.009 Merri Creek at Summerhill Road, Craigieburn 12 0.004 0.012 0.016 0.039 0.054 Merri Creek at Roseneath Street, Yarra Bend 12 0.029 0.033 0.042 0.055 0.130 Moonee Ponds Creek at Mt Alexander Road, 12 0.012 0.023 0.031 0.067 0.170 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.091 0.110 0.220 0.303 0.550 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.035 0.066 0.180 0.245 0.690 Plenty River at Plenty Gorge, South Morang 12 0.002 0.003 0.005 0.010 0.017 Plenty River at Henty Road, Lower Plenty 12 0.002 0.008 0.014 0.018 0.028 Ruffy Creek at Parker Street, Templestowe 12 0.044 0.079 0.105 0.133 0.200 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.002 0.002 0.004 0.006 0.009 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.002 0.003 0.005 0.005 0.012 Wandin Yallock Creek at Killara Road, Gruyere 12 0.002 0.007 0.010 0.011 0.023 Watsons Creek at Henley Road, Kangaroo Ground 12 0.002 0.002 0.003 0.003 0.005 Watts River at Healesville-Kinglake Road, 12 0.002 0.004 0.005 0.007 0.015 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.002 0.002 0.004 0.004 0.038 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.002 0.002 0.004 0.005 0.009 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.002 0.002 0.002 0.005 0.020 Yarra River at Don Road, Launching Place 12 0.002 0.002 0.002 0.004 0.005 Yarra River at Everard Park Maroondah Highway, 12 0.002 0.002 0.002 0.004 0.005 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.002 0.006 0.009 0.021 0.046 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.008 0.013 0.016 0.019 0.023 Yarra River at Chandler Highway, Kew 12 0.011 0.014 0.016 0.024 0.029 Yarra River at Princes Bridge, South Melbourne 12 0.024 0.031 0.049 0.058 0.110 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.008 0.012 0.015 0.019 0.049 Rowville Dandenong Creek upstream Sheffield Road, 13 0.002 0.006 0.007 0.009 0.021 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.012 0.021 0.033 0.047 0.072

Dandenong Creek at Stud Road, Dandenong North 13 0.010 0.014 0.019 0.030 0.075 Dandenong Creek at Pillars Crossing, Dandenong 13 0.011 0.013 0.018 0.021 0.047 South Elster Creek at Cochrane Street, Elwood 12 0.008 0.033 0.048 0.054 0.170 Eumemmerring Creek at Worsley Road, Bangholme 13 0.018 0.072 0.110 0.140 0.300 Hallam Valley Main Drain at South Gippsland 13 0.005 0.006 0.007 0.008 0.024 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.075 0.098 0.120 0.160 1.200 Mile Creek at Cheltenham Road, Keysborough 13 0.012 0.017 0.021 0.027 0.093 Mordialloc Creek at end Wells Road, Mordialloc 13 0.030 0.050 0.073 0.110 0.140 Patterson River, National Water Sports Centre outlet, 13 0.009 0.023 0.031 0.038 0.100 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.002 0.003 0.005 0.008 0.012 Bunyip River at North Labertouche Road, 12 0.002 0.002 0.002 0.003 0.004 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.002 0.002 0.004 0.005 0.016 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.002 0.004 0.004 0.007 0.013 Bunyip River at Healesville Koo Wee Rup Road, 12 0.002 0.003 0.007 0.009 0.019 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.002 0.002 0.005 0.006 0.008 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.004 0.006 0.008 0.011 0.017 Chinamans Creek at Eastborne Road, Rosebud West 13 0.007 0.010 0.017 0.024 0.055 Deep Creek at Ballarto Road, Rythdale 12 0.037 0.140 0.210 0.273 0.400 Dunns Creek at Marine Drive, Safety Beach 13 0.002 0.005 0.006 0.007 0.017 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.028 0.037 0.045 0.059 0.093 Lang-Lang River at South Gippsland Highway, Lang 12 0.011 0.036 0.047 0.059 0.110 Lang Main Creek at Boneo Road, Flinders 13 0.002 0.002 0.004 0.005 0.008 Merricks Creek at end Bridge Street, Merricks 13 0.002 0.004 0.008 0.011 0.065 Tarago River at Morrisons Road, Labertouche 12 0.002 0.006 0.008 0.013 0.029 Toomuc Creek at Princes Highway, Pakenham 12 0.004 0.007 0.008 0.011 0.036 Toomuc Creek at Ballarto Road, Rythdale 12 0.002 0.002 0.004 0.005 0.009 Warrangine Creek at Frankston-Flinders Road, 13 0.004 0.006 0.007 0.008 0.021 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.013 0.047 0.096 0.120 0.190 Somerville Yallock Outfall at South Gippsland Highway, 12 0.005 0.009 0.015 0.080 0.120 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.002 0.002 0.003 0.010 0.016 Maribyrnong River at Canning Street, Avondale 12 0.002 0.003 0.004 0.007 0.019 Heights Steele Creek at Rose Avenue, Niddrie 12 0.006 0.009 0.013 0.023 0.096

Stony Creek at Bena Street, Yarraville 12 0.160 0.313 0.420 0.695 1.300 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.002 0.003 0.006 0.009 0.035 Kororoit Creek at Racecourse Road, Altona 12 0.005 0.040 0.059 0.140 0.450 Skeleton Creek at Ayr Street, Laverton 12 0.029 0.048 0.054 0.088 0.390 Escherichia coli (organisms/100mL) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 160 245 640 1525 6000 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 40 50 60 140 520 Brushy Creek at Lower Homestead Road, Wonga 12 110 200 295 395 5000 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 20 35 50 80 1600 Darebin Creek at Clark Road, Ivanhoe 12 40 100 260 720 30000 Diamond Creek at Strathhaven Road, Cottles Bridge 11 10 15 40 90 440 Diamond Creek at Main Road, Eltham 12 80 188 370 970 3600 Gardiners Creek at Glenferrie Road, Hawthorn 12 460 585 840 1325 12000 Jumping Creek at Brysons Road, Wonga Park 12 20 105 415 685 5800 Koonung Creek at Bulleen Road, Bulleen 12 660 790 1550 4150 24000 Little Yarra River at Corduroy Road, Yarra Junction 12 60 198 300 635 4400 Merri Creek at Summerhill Road, Craigieburn 12 40 78 190 335 620 Merri Creek at Roseneath Street, Yarra Bend 12 10 130 180 285 20000 Moonee Ponds Creek at Mt Alexander Road, 12 40 775 990 1200 22000 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 80 278 520 1225 4800 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 60 140 290 425 1800 Plenty River at Plenty Gorge, South Morang 12 5 10 45 110 300 Plenty River at Henty Road, Lower Plenty 12 60 245 420 945 2700 Ruffy Creek at Parker Street, Templestowe 12 360 875 1950 3750 22000 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 20 25 40 240 620 Glen Stringybark Creek at St. Huberts Road, Yering 12 20 145 180 240 740 Wandin Yallock Creek at Killara Road, Gruyere 12 60 75 120 253 2800 Watsons Creek at Henley Road, Kangaroo Ground 12 40 55 60 105 1400 Watts River at Healesville-Kinglake Road, 12 80 190 500 720 4800 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 40 60 160 225 1700 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 10 70 150 305 600 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 10 95 270 320 1200 Yarra River at Don Road, Launching Place 24 60 175 270 560 48000 Yarra River at Everard Park Maroondah Highway, 25 40 100 190 310 1900 Healesville

Yarra River at Spadonis Reserve, Coldstream 10 40 85 120 260 960 Yarra River at Warrandyte Road Bridge, Warrandyte 25 10 100 180 280 2100 Yarra River at Chandler Highway, Kew 26 40 165 280 510 8000 Yarra River at Princes Bridge, South Melbourne 26 100 425 840 1375 8800 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 80 160 220 1600 4600 Rowville Dandenong Creek upstream Sheffield Road, 13 10 60 80 300 2800 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 140 320 420 1000 6400 Dandenong Creek at Stud Road, Dandenong North 13 20 120 280 320 10000 Dandenong Creek at Pillars Crossing, Dandenong 13 100 460 770 1200 10000 South Elster Creek at Cochrane Street, Elwood 12 60 485 1090 1875 20000 Eumemmerring Creek at Worsley Road, Bangholme 13 80 160 300 740 5000 Hallam Valley Main Drain at South Gippsland 13 10 60 160 320 2500 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 25 10 200 260 580 6600 Mile Creek at Cheltenham Road, Keysborough 13 100 150 530 980 20000 Mordialloc Creek at end Wells Road, Mordialloc 26 10 273 460 1135 120000 Patterson River, National Water Sports Centre outlet, 26 10 65 130 235 18000 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 10 100 380 470 3000 Bunyip River at North Labertouche Road, 12 10 20 50 205 580 Labertouche Bunyip River downstream of Cannibal Creek, 12 80 175 320 410 6400 Longwarry North Bunyip Main Drain at Little Road, Iona 12 130 218 430 630 4200 Bunyip River at Healesville Koo Wee Rup Road, 12 90 155 280 445 1500 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 10 40 90 215 1100 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 10 70 120 160 2000 Chinamans Creek at Eastborne Road, Rosebud West 13 10 60 170 420 1000 Deep Creek at Ballarto Road, Rythdale 12 10 50 165 645 6600 Dunns Creek at Marine Drive, Safety Beach 13 160 480 680 1200 2600 Lang-Lang River at Drouin-Poowong Road, Athlone 12 40 183 420 678 16000 Lang-Lang River at South Gippsland Highway, Lang 12 40 200 360 673 11000 Lang Main Creek at Boneo Road, Flinders 13 20 140 280 380 710 Merricks Creek at end Bridge Street, Merricks 13 20 280 540 600 2600 Tarago River at Morrisons Road, Labertouche 12 70 285 420 785 8200 Toomuc Creek at Princes Highway, Pakenham 12 40 120 250 425 8800 Toomuc Creek at Ballarto Road, Rythdale 12 10 10 45 105 4800 Warrangine Creek at Frankston-Flinders Road, 13 50 120 340 600 2400

Hastings Watsons Creek at Dandenong-Hastings Road, 13 220 400 480 880 3000 Somerville Yallock Outfall at South Gippsland Highway, 12 80 150 225 525 710 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 26 10 23 60 95 52000 Maribyrnong River at Canning Street, Avondale 26 10 20 60 110 7400 Heights Steele Creek at Rose Avenue, Niddrie 12 60 135 180 380 9600 Stony Creek at Bena Street, Yarraville 12 50 655 2950 8500 580000 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 20 35 110 185 6600 Kororoit Creek at Racecourse Road, Altona 12 40 160 530 825 1500 Skeleton Creek at Ayr Street, Laverton 12 10 230 410 665 900 Total Arsenic (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.001 0.002 0.002 0.002 0.003 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.001 0.001 0.001 0.002 0.005 Brushy Creek at Lower Homestead Road, Wonga 12 0.001 0.001 0.001 0.002 0.002 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.001 0.001 0.001 0.001 0.001 Darebin Creek at Clark Road, Ivanhoe 12 0.001 0.001 0.001 0.002 0.002 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.001 0.001 0.002 0.003 0.005 Diamond Creek at Main Road, Eltham 12 0.001 0.001 0.002 0.002 0.003 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.001 0.001 0.001 0.002 0.007 Jumping Creek at Brysons Road, Wonga Park 12 0.001 0.001 0.001 0.002 0.003 Koonung Creek at Bulleen Road, Bulleen 12 0.001 0.001 0.002 0.002 0.002 Little Yarra River at Corduroy Road, Yarra Junction 12 0.001 0.001 0.001 0.001 0.001 Merri Creek at Summerhill Road, Craigieburn 12 0.002 0.003 0.004 0.006 0.013 Merri Creek at Roseneath Street, Yarra Bend 12 0.001 0.001 0.002 0.002 0.004 Moonee Ponds Creek at Mt Alexander Road, 12 0.001 0.001 0.002 0.003 0.004 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.001 0.002 0.002 0.003 0.005 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.001 0.001 0.001 0.001 0.002 Plenty River at Plenty Gorge, South Morang 12 0.001 0.002 0.003 0.003 0.006 Plenty River at Henty Road, Lower Plenty 12 0.001 0.001 0.002 0.002 0.002 Ruffy Creek at Parker Street, Templestowe 12 0.001 0.001 0.002 0.002 0.003 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.001 0.001 0.001 0.002 0.003 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.001 0.001 0.001 0.001 0.002 Wandin Yallock Creek at Killara Road, Gruyere 12 0.001 0.001 0.001 0.001 0.001 Watsons Creek at Henley Road, Kangaroo Ground 12 0.001 0.001 0.001 0.001 0.002

Watts River at Healesville-Kinglake Road, 12 0.001 0.001 0.001 0.001 0.002 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.001 0.001 0.001 0.001 0.001 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.001 0.001 0.001 0.001 0.002 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.001 0.001 0.001 0.001 0.001 Yarra River at Don Road, Launching Place 12 0.001 0.001 0.001 0.001 0.002 Yarra River at Everard Park Maroondah Highway, 12 0.001 0.001 0.001 0.001 0.002 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.001 0.001 0.001 0.001 0.002 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.001 0.001 0.001 0.001 0.002 Yarra River at Chandler Highway, Kew 12 0.001 0.001 0.001 0.001 0.002 Yarra River at Princes Bridge, South Melbourne 12 0.001 0.001 0.001 0.004 0.006 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.001 0.001 0.001 0.002 0.004 Rowville Dandenong Creek upstream Sheffield Road, 13 0.001 0.001 0.001 0.001 0.003 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.001 0.001 0.002 0.002 0.004 Dandenong Creek at Stud Road, Dandenong North 13 0.001 0.001 0.001 0.002 0.004 Dandenong Creek at Pillars Crossing, Dandenong 13 0.001 0.001 0.002 0.002 0.004 South Elster Creek at Cochrane Street, Elwood 12 0.002 0.003 0.004 0.005 0.007 Eumemmerring Creek at Worsley Road, Bangholme 13 0.001 0.001 0.002 0.002 0.006 Hallam Valley Main Drain at South Gippsland 13 0.001 0.001 0.001 0.002 0.004 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.001 0.006 0.013 0.017 0.034 Mile Creek at Cheltenham Road, Keysborough 13 0.001 0.001 0.001 0.002 0.003 Mordialloc Creek at end Wells Road, Mordialloc 13 0.002 0.002 0.003 0.004 0.006 Patterson River, National Water Sports Centre outlet, 13 0.001 0.001 0.002 0.003 0.007 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.001 0.001 0.001 0.004 0.013 Bunyip River at North Labertouche Road, 12 0.001 0.001 0.001 0.001 0.001 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.001 0.001 0.001 0.001 0.001 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.001 0.001 0.001 0.001 0.001 Bunyip River at Healesville Koo Wee Rup Road, 12 0.001 0.001 0.001 0.001 0.001 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.001 0.001 0.001 0.001 0.001 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.001 0.001 0.001 0.001 0.001 Chinamans Creek at Eastborne Road, Rosebud West 13 0.004 0.005 0.007 0.011 0.014 Deep Creek at Ballarto Road, Rythdale 12 0.001 0.002 0.002 0.002 0.003

Dunns Creek at Marine Drive, Safety Beach 13 0.001 0.001 0.002 0.002 0.005 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.001 0.001 0.001 0.001 0.002 Lang-Lang River at South Gippsland Highway, Lang 12 0.001 0.001 0.001 0.002 0.013 Lang Main Creek at Boneo Road, Flinders 13 0.001 0.001 0.001 0.001 0.003 Merricks Creek at end Bridge Street, Merricks 13 0.001 0.002 0.004 0.009 0.018 Tarago River at Morrisons Road, Labertouche 12 0.001 0.001 0.001 0.001 0.001 Toomuc Creek at Princes Highway, Pakenham 12 0.001 0.001 0.001 0.001 0.002 Toomuc Creek at Ballarto Road, Rythdale 12 0.001 0.001 0.001 0.001 0.001 Warrangine Creek at Frankston-Flinders Road, 13 0.001 0.001 0.002 0.008 0.015 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.001 0.001 0.007 0.009 0.017 Somerville Yallock Outfall at South Gippsland Highway, 12 0.001 0.001 0.002 0.003 0.006 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.001 0.001 0.001 0.002 0.004 Maribyrnong River at Canning Street, Avondale 12 0.001 0.001 0.002 0.002 0.003 Heights Steele Creek at Rose Avenue, Niddrie 12 0.001 0.001 0.001 0.002 0.003 Stony Creek at Bena Street, Yarraville 12 0.004 0.008 0.010 0.015 0.020 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.001 0.001 0.001 0.002 0.003 Kororoit Creek at Racecourse Road, Altona 12 0.001 0.001 0.002 0.004 0.006 Skeleton Creek at Ayr Street, Laverton 12 0.001 0.001 0.002 0.003 0.004 Total Cadmium (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.0001 0.0001 0.0001 0.0001 0.0001 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.0001 0.0001 0.0001 0.0001 0.0001 Brushy Creek at Lower Homestead Road, Wonga 12 0.0001 0.0001 0.0001 0.0001 0.0001 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.0001 0.0001 0.0001 0.0001 0.0001 Darebin Creek at Clark Road, Ivanhoe 12 0.0001 0.0001 0.0001 0.0001 0.0001 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.0001 0.0001 0.0001 0.0001 0.0001 Diamond Creek at Main Road, Eltham 12 0.0001 0.0001 0.0001 0.0001 0.0001 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.0001 0.0001 0.0001 0.0001 0.0007 Jumping Creek at Brysons Road, Wonga Park 12 0.0001 0.0001 0.0001 0.0001 0.0001 Koonung Creek at Bulleen Road, Bulleen 12 0.0001 0.0001 0.0001 0.0001 0.0001 Little Yarra River at Corduroy Road, Yarra Junction 12 0.0001 0.0001 0.0001 0.0001 0.0001 Merri Creek at Summerhill Road, Craigieburn 12 0.0001 0.0001 0.0001 0.0001 0.0001 Merri Creek at Roseneath Street, Yarra Bend 12 0.0001 0.0001 0.0001 0.0001 0.0003 Moonee Ponds Creek at Mt Alexander Road, 12 0.0001 0.0001 0.0001 0.0001 0.0004 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.0001 0.0001 0.0001 0.0001 0.0008

Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.0001 0.0001 0.0001 0.0001 0.0001 Plenty River at Plenty Gorge, South Morang 12 0.0001 0.0001 0.0001 0.0001 0.0001 Plenty River at Henty Road, Lower Plenty 12 0.0001 0.0001 0.0001 0.0001 0.0001 Ruffy Creek at Parker Street, Templestowe 12 0.0001 0.0001 0.0001 0.0001 0.0001 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.0001 0.0001 0.0001 0.0001 0.0001 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.0001 0.0001 0.0001 0.0001 0.0001 Wandin Yallock Creek at Killara Road, Gruyere 12 0.0001 0.0001 0.0001 0.0001 0.0001 Watsons Creek at Henley Road, Kangaroo Ground 12 0.0001 0.0001 0.0001 0.0001 0.0001 Watts River at Healesville-Kinglake Road, 12 0.0001 0.0001 0.0001 0.0001 0.0001 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.0001 0.0001 0.0001 0.0001 0.0001 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.0001 0.0001 0.0001 0.0001 0.0001 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.0001 0.0001 0.0001 0.0001 0.0001 Yarra River at Don Road, Launching Place 12 0.0001 0.0001 0.0001 0.0001 0.0001 Yarra River at Everard Park Maroondah Highway, 12 0.0001 0.0001 0.0001 0.0001 0.0001 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.0001 0.0001 0.0001 0.0001 0.0001 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.0001 0.0001 0.0001 0.0001 0.0001 Yarra River at Chandler Highway, Kew 12 0.0001 0.0001 0.0001 0.0001 0.0001 Yarra River at Princes Bridge, South Melbourne 12 0.0001 0.0001 0.0001 0.0001 0.0002 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.0001 0.0001 0.0001 0.0001 0.0001 Rowville Dandenong Creek upstream Sheffield Road, 13 0.0001 0.0001 0.0001 0.0001 0.0001 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.0001 0.0001 0.0001 0.0001 0.0014 Dandenong Creek at Stud Road, Dandenong North 13 0.0001 0.0001 0.0001 0.0001 0.0001 Dandenong Creek at Pillars Crossing, Dandenong 13 0.0001 0.0001 0.0001 0.0001 0.0001 South Elster Creek at Cochrane Street, Elwood 12 0.0001 0.0001 0.0001 0.0001 0.0001 Eumemmerring Creek at Worsley Road, Bangholme 13 0.0001 0.0001 0.0001 0.0001 0.0003 Hallam Valley Main Drain at South Gippsland 13 0.0001 0.0001 0.0001 0.0001 0.0001 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.0001 0.0001 0.0001 0.0004 0.0017 Mile Creek at Cheltenham Road, Keysborough 13 0.0001 0.0001 0.0001 0.0001 0.0001 Mordialloc Creek at end Wells Road, Mordialloc 13 0.0001 0.0001 0.0001 0.0001 0.0001 Patterson River, National Water Sports Centre outlet, 13 0.0001 0.0001 0.0001 0.0001 0.0002 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.0001 0.0001 0.0001 0.0002 0.0009 Bunyip River at North Labertouche Road, 12 0.0001 0.0001 0.0001 0.0001 0.0001 Labertouche

Bunyip River downstream of Cannibal Creek, 12 0.0001 0.0001 0.0001 0.0001 0.0001 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.0001 0.0001 0.0001 0.0001 0.0001 Bunyip River at Healesville Koo Wee Rup Road, 12 0.0001 0.0001 0.0001 0.0001 0.0001 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.0001 0.0001 0.0001 0.0001 0.0001 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.0001 0.0001 0.0001 0.0001 0.0001 Chinamans Creek at Eastborne Road, Rosebud West 13 0.0001 0.0001 0.0001 0.0001 0.0001 Deep Creek at Ballarto Road, Rythdale 12 0.0001 0.0001 0.0001 0.0001 0.0001 Dunns Creek at Marine Drive, Safety Beach 13 0.0001 0.0001 0.0001 0.0001 0.0001 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.0001 0.0001 0.0001 0.0001 0.0001 Lang-Lang River at South Gippsland Highway, Lang 12 0.0001 0.0001 0.0001 0.0001 0.0001 Lang Main Creek at Boneo Road, Flinders 13 0.0001 0.0001 0.0001 0.0001 0.0001 Merricks Creek at end Bridge Street, Merricks 13 0.0001 0.0001 0.0001 0.0001 0.0007 Tarago River at Morrisons Road, Labertouche 12 0.0001 0.0001 0.0001 0.0001 0.0001 Toomuc Creek at Princes Highway, Pakenham 12 0.0001 0.0001 0.0001 0.0001 0.0001 Toomuc Creek at Ballarto Road, Rythdale 12 0.0001 0.0001 0.0001 0.0001 0.0001 Warrangine Creek at Frankston-Flinders Road, 13 0.0001 0.0001 0.0001 0.0001 0.0003 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.0001 0.0001 0.0001 0.0003 0.0010 Somerville Yallock Outfall at South Gippsland Highway, 12 0.0001 0.0001 0.0001 0.0001 0.0001 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.0001 0.0001 0.0001 0.0001 0.0001 Maribyrnong River at Canning Street, Avondale 12 0.0001 0.0001 0.0001 0.0001 0.0001 Heights Steele Creek at Rose Avenue, Niddrie 12 0.0001 0.0001 0.0001 0.0001 0.0002 Stony Creek at Bena Street, Yarraville 12 0.0001 0.0001 0.0001 0.0001 0.0001 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.0001 0.0001 0.0001 0.0001 0.0010 Kororoit Creek at Racecourse Road, Altona 12 0.0001 0.0001 0.0001 0.0001 0.0003 Skeleton Creek at Ayr Street, Laverton 12 0.0001 0.0001 0.0001 0.0001 0.0001 Total Chromium (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.001 0.001 0.002 0.003 0.010 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.001 0.001 0.001 0.003 0.004 Brushy Creek at Lower Homestead Road, Wonga 12 0.001 0.001 0.002 0.003 0.007 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.001 0.001 0.001 0.002 0.011 Darebin Creek at Clark Road, Ivanhoe 12 0.001 0.001 0.001 0.002 0.004 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.001 0.001 0.002 0.003 0.012

Diamond Creek at Main Road, Eltham 12 0.001 0.001 0.002 0.007 0.011 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.001 0.001 0.002 0.004 0.022 Jumping Creek at Brysons Road, Wonga Park 12 0.001 0.001 0.001 0.002 0.006 Koonung Creek at Bulleen Road, Bulleen 12 0.001 0.001 0.002 0.003 0.007 Little Yarra River at Corduroy Road, Yarra Junction 12 0.001 0.001 0.002 0.002 0.009 Merri Creek at Summerhill Road, Craigieburn 12 0.001 0.001 0.001 0.001 0.005 Merri Creek at Roseneath Street, Yarra Bend 12 0.001 0.001 0.001 0.002 0.009 Moonee Ponds Creek at Mt Alexander Road, 12 0.001 0.001 0.001 0.002 0.011 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.001 0.001 0.002 0.003 0.012 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.001 0.002 0.002 0.004 0.007 Plenty River at Plenty Gorge, South Morang 12 0.001 0.001 0.001 0.001 0.009 Plenty River at Henty Road, Lower Plenty 12 0.001 0.002 0.002 0.003 0.004 Ruffy Creek at Parker Street, Templestowe 12 0.001 0.001 0.001 0.002 0.016 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.001 0.002 0.002 0.005 0.012 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.001 0.001 0.001 0.002 0.005 Wandin Yallock Creek at Killara Road, Gruyere 12 0.001 0.001 0.001 0.002 0.005 Watsons Creek at Henley Road, Kangaroo Ground 12 0.001 0.001 0.001 0.003 0.005 Watts River at Healesville-Kinglake Road, 12 0.001 0.001 0.001 0.001 0.003 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.001 0.001 0.002 0.002 0.005 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.001 0.001 0.002 0.002 0.005 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.001 0.001 0.001 0.001 0.003 Yarra River at Don Road, Launching Place 12 0.001 0.001 0.001 0.001 0.004 Yarra River at Everard Park Maroondah Highway, 12 0.001 0.001 0.001 0.001 0.004 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.001 0.001 0.001 0.002 0.005 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.001 0.001 0.001 0.002 0.004 Yarra River at Chandler Highway, Kew 12 0.002 0.002 0.002 0.002 0.005 Yarra River at Princes Bridge, South Melbourne 12 0.001 0.002 0.003 0.004 0.008 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.001 0.002 0.003 0.003 0.006 Rowville Dandenong Creek upstream Sheffield Road, 13 0.001 0.001 0.002 0.002 0.015 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.001 0.001 0.002 0.003 0.005 Dandenong Creek at Stud Road, Dandenong North 13 0.002 0.003 0.004 0.005 0.013 Dandenong Creek at Pillars Crossing, Dandenong 13 0.002 0.003 0.003 0.004 0.007 South Elster Creek at Cochrane Street, Elwood 12 0.001 0.002 0.004 0.008 0.380 Eumemmerring Creek at Worsley Road, Bangholme 13 0.001 0.002 0.002 0.003 0.011 Hallam Valley Main Drain at South Gippsland 13 0.001 0.002 0.002 0.002 0.004

Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.003 0.004 0.012 0.014 0.024 Mile Creek at Cheltenham Road, Keysborough 13 0.001 0.002 0.002 0.003 0.010 Mordialloc Creek at end Wells Road, Mordialloc 13 0.002 0.003 0.004 0.005 0.008 Patterson River, National Water Sports Centre outlet, 13 0.003 0.004 0.004 0.006 0.009 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.001 0.001 0.002 0.002 0.003 Bunyip River at North Labertouche Road, 12 0.001 0.001 0.001 0.001 0.002 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.001 0.001 0.001 0.001 0.004 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.001 0.001 0.001 0.001 0.005 Bunyip River at Healesville Koo Wee Rup Road, 12 0.001 0.001 0.001 0.001 0.004 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.001 0.001 0.001 0.001 0.004 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.001 0.001 0.002 0.003 0.009 Chinamans Creek at Eastborne Road, Rosebud West 13 0.001 0.001 0.001 0.001 0.002 Deep Creek at Ballarto Road, Rythdale 12 0.005 0.005 0.006 0.008 0.010 Dunns Creek at Marine Drive, Safety Beach 13 0.001 0.001 0.001 0.001 0.003 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.001 0.001 0.001 0.001 0.002 Lang-Lang River at South Gippsland Highway, Lang 12 0.001 0.001 0.002 0.003 0.020 Lang Main Creek at Boneo Road, Flinders 13 0.001 0.001 0.001 0.001 0.003 Merricks Creek at end Bridge Street, Merricks 13 0.001 0.002 0.003 0.005 0.013 Tarago River at Morrisons Road, Labertouche 12 0.001 0.001 0.001 0.001 0.006 Toomuc Creek at Princes Highway, Pakenham 12 0.001 0.002 0.002 0.002 0.006 Toomuc Creek at Ballarto Road, Rythdale 12 0.001 0.001 0.004 0.004 0.013 Warrangine Creek at Frankston-Flinders Road, 13 0.001 0.002 0.004 0.007 0.013 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.001 0.001 0.003 0.004 0.006 Somerville Yallock Outfall at South Gippsland Highway, 12 0.002 0.003 0.004 0.004 0.016 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.001 0.001 0.001 0.001 0.002 Maribyrnong River at Canning Street, Avondale 12 0.001 0.001 0.001 0.001 0.002 Heights Steele Creek at Rose Avenue, Niddrie 12 0.001 0.001 0.001 0.004 0.013 Stony Creek at Bena Street, Yarraville 12 0.001 0.001 0.002 0.002 0.007 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.001 0.001 0.001 0.001 0.005 Kororoit Creek at Racecourse Road, Altona 12 0.002 0.004 0.005 0.006 0.010 Skeleton Creek at Ayr Street, Laverton 12 0.001 0.002 0.002 0.002 0.003

Total Copper (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.005 0.006 0.008 0.010 0.015 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.001 0.003 0.003 0.006 0.021 Brushy Creek at Lower Homestead Road, Wonga 12 0.005 0.006 0.008 0.009 0.015 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.002 0.003 0.003 0.004 0.024 Darebin Creek at Clark Road, Ivanhoe 12 0.005 0.006 0.010 0.012 0.030 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.002 0.003 0.004 0.006 0.009 Diamond Creek at Main Road, Eltham 12 0.004 0.007 0.008 0.010 0.027 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.007 0.008 0.010 0.014 0.058 Jumping Creek at Brysons Road, Wonga Park 12 0.003 0.004 0.005 0.006 0.022 Koonung Creek at Bulleen Road, Bulleen 12 0.007 0.008 0.009 0.011 0.016 Little Yarra River at Corduroy Road, Yarra Junction 12 0.002 0.003 0.003 0.003 0.017 Merri Creek at Summerhill Road, Craigieburn 12 0.002 0.003 0.005 0.005 0.010 Merri Creek at Roseneath Street, Yarra Bend 12 0.004 0.005 0.006 0.008 0.039 Moonee Ponds Creek at Mt Alexander Road, 12 0.004 0.006 0.008 0.011 0.047 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.005 0.008 0.010 0.012 0.015 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.004 0.005 0.007 0.008 0.024 Plenty River at Plenty Gorge, South Morang 12 0.002 0.003 0.005 0.005 0.007 Plenty River at Henty Road, Lower Plenty 12 0.002 0.004 0.006 0.007 0.010 Ruffy Creek at Parker Street, Templestowe 12 0.007 0.009 0.010 0.011 0.029 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.003 0.003 0.004 0.005 0.006 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.002 0.002 0.003 0.005 0.010 Wandin Yallock Creek at Killara Road, Gruyere 12 0.002 0.003 0.003 0.005 0.027 Watsons Creek at Henley Road, Kangaroo Ground 12 0.002 0.003 0.005 0.006 0.012 Watts River at Healesville-Kinglake Road, 12 0.002 0.003 0.004 0.004 0.018 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.002 0.003 0.003 0.004 0.019 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.002 0.003 0.003 0.005 0.015 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.001 0.002 0.003 0.006 0.017 Yarra River at Don Road, Launching Place 12 0.002 0.003 0.003 0.004 0.014 Yarra River at Everard Park Maroondah Highway, 12 0.002 0.002 0.004 0.006 0.019 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.002 0.003 0.004 0.005 0.005 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.002 0.003 0.004 0.005 0.017 Yarra River at Chandler Highway, Kew 12 0.004 0.004 0.006 0.007 0.020 Yarra River at Princes Bridge, South Melbourne 12 0.004 0.006 0.008 0.011 0.015 Dandenong Catchment

Corhanwarrabul Creek at Wellington Road, 13 0.003 0.006 0.007 0.008 0.012 Rowville Dandenong Creek upstream Sheffield Road, 13 0.002 0.003 0.006 0.009 0.024 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.006 0.008 0.009 0.011 0.051 Dandenong Creek at Stud Road, Dandenong North 13 0.004 0.006 0.007 0.010 0.014 Dandenong Creek at Pillars Crossing, Dandenong 13 0.005 0.008 0.009 0.011 0.015 South Elster Creek at Cochrane Street, Elwood 12 0.008 0.011 0.014 0.016 0.026 Eumemmerring Creek at Worsley Road, Bangholme 13 0.004 0.007 0.008 0.011 0.016 Hallam Valley Main Drain at South Gippsland 13 0.003 0.004 0.005 0.008 0.013 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.009 0.012 0.014 0.017 0.028 Mile Creek at Cheltenham Road, Keysborough 13 0.008 0.009 0.009 0.010 0.014 Mordialloc Creek at end Wells Road, Mordialloc 13 0.005 0.007 0.009 0.010 0.013 Patterson River, National Water Sports Centre outlet, 13 0.005 0.006 0.008 0.009 0.020 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.005 0.006 0.007 0.009 0.023 Bunyip River at North Labertouche Road, 12 0.001 0.003 0.003 0.005 0.038 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.002 0.003 0.005 0.006 0.027 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.002 0.003 0.005 0.010 0.018 Bunyip River at Healesville Koo Wee Rup Road, 12 0.002 0.004 0.006 0.007 0.010 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.001 0.003 0.006 0.009 0.018 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.002 0.004 0.004 0.008 0.014 Chinamans Creek at Eastborne Road, Rosebud West 13 0.002 0.003 0.005 0.006 0.009 Deep Creek at Ballarto Road, Rythdale 12 0.006 0.006 0.008 0.010 0.019 Dunns Creek at Marine Drive, Safety Beach 13 0.002 0.004 0.005 0.005 0.008 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.003 0.004 0.006 0.006 0.017 Lang-Lang River at South Gippsland Highway, Lang 12 0.003 0.005 0.006 0.013 0.020 Lang Main Creek at Boneo Road, Flinders 13 0.002 0.003 0.004 0.005 0.009 Merricks Creek at end Bridge Street, Merricks 13 0.003 0.005 0.008 0.012 0.027 Tarago River at Morrisons Road, Labertouche 12 0.002 0.003 0.004 0.008 0.016 Toomuc Creek at Princes Highway, Pakenham 12 0.004 0.005 0.006 0.009 0.019 Toomuc Creek at Ballarto Road, Rythdale 12 0.003 0.005 0.007 0.011 0.019 Warrangine Creek at Frankston-Flinders Road, 13 0.004 0.007 0.008 0.011 0.017 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.005 0.009 0.013 0.017 0.024 Somerville Yallock Outfall at South Gippsland Highway, 12 0.003 0.005 0.006 0.009 0.021 Monomeith

Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.002 0.003 0.004 0.006 0.010 Maribyrnong River at Canning Street, Avondale 12 0.002 0.003 0.006 0.008 0.009 Heights Steele Creek at Rose Avenue, Niddrie 12 0.004 0.006 0.008 0.012 0.027 Stony Creek at Bena Street, Yarraville 12 0.006 0.011 0.013 0.019 0.032 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.003 0.003 0.005 0.006 0.018 Kororoit Creek at Racecourse Road, Altona 12 0.006 0.008 0.010 0.012 0.026 Skeleton Creek at Ayr Street, Laverton 12 0.002 0.004 0.005 0.009 0.017 Total Lead (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.001 0.003 0.004 0.005 0.009 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.001 0.003 0.003 0.004 0.006 Brushy Creek at Lower Homestead Road, Wonga 12 0.001 0.001 0.002 0.002 0.006 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.001 0.001 0.001 0.001 0.005 Darebin Creek at Clark Road, Ivanhoe 12 0.002 0.002 0.004 0.004 0.007 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.002 0.003 0.004 0.004 0.005 Diamond Creek at Main Road, Eltham 12 0.002 0.004 0.004 0.006 0.009 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.003 0.003 0.005 0.005 0.130 Jumping Creek at Brysons Road, Wonga Park 12 0.001 0.001 0.001 0.002 0.007 Koonung Creek at Bulleen Road, Bulleen 12 0.002 0.003 0.005 0.006 0.011 Little Yarra River at Corduroy Road, Yarra Junction 12 0.001 0.001 0.001 0.002 0.015 Merri Creek at Summerhill Road, Craigieburn 12 0.001 0.002 0.003 0.003 0.007 Merri Creek at Roseneath Street, Yarra Bend 12 0.001 0.003 0.004 0.005 0.055 Moonee Ponds Creek at Mt Alexander Road, 12 0.002 0.004 0.006 0.008 0.058 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.002 0.004 0.004 0.006 0.017 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.001 0.001 0.002 0.004 0.009 Plenty River at Plenty Gorge, South Morang 12 0.001 0.002 0.003 0.003 0.004 Plenty River at Henty Road, Lower Plenty 12 0.003 0.004 0.005 0.006 0.008 Ruffy Creek at Parker Street, Templestowe 12 0.001 0.003 0.005 0.005 0.009 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.001 0.001 0.001 0.002 0.003 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.001 0.001 0.001 0.002 0.002 Wandin Yallock Creek at Killara Road, Gruyere 12 0.001 0.001 0.001 0.002 0.005 Watsons Creek at Henley Road, Kangaroo Ground 12 0.001 0.001 0.003 0.003 0.007 Watts River at Healesville-Kinglake Road, 12 0.001 0.001 0.001 0.002 0.004 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.001 0.001 0.001 0.001 0.006 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.001 0.001 0.001 0.002 0.004

Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.001 0.001 0.001 0.001 0.004 Yarra River at Don Road, Launching Place 12 0.001 0.001 0.001 0.002 0.004 Yarra River at Everard Park Maroondah Highway, 12 0.001 0.001 0.001 0.002 0.003 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.001 0.001 0.001 0.002 0.002 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.001 0.002 0.002 0.003 0.004 Yarra River at Chandler Highway, Kew 12 0.002 0.004 0.005 0.005 0.013 Yarra River at Princes Bridge, South Melbourne 12 0.002 0.003 0.005 0.005 0.012 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.001 0.002 0.003 0.004 0.006 Rowville Dandenong Creek upstream Sheffield Road, 13 0.001 0.001 0.001 0.003 0.011 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.002 0.003 0.004 0.006 0.009 Dandenong Creek at Stud Road, Dandenong North 13 0.002 0.004 0.006 0.007 0.012 Dandenong Creek at Pillars Crossing, Dandenong 13 0.003 0.005 0.007 0.010 0.012 South Elster Creek at Cochrane Street, Elwood 12 0.002 0.003 0.004 0.005 1.600 Eumemmerring Creek at Worsley Road, Bangholme 13 0.001 0.002 0.003 0.005 0.012 Hallam Valley Main Drain at South Gippsland 13 0.001 0.001 0.002 0.004 0.005 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.001 0.004 0.006 0.006 0.008 Mile Creek at Cheltenham Road, Keysborough 13 0.002 0.002 0.003 0.007 0.011 Mordialloc Creek at end Wells Road, Mordialloc 13 0.001 0.004 0.005 0.006 0.010 Patterson River, National Water Sports Centre outlet, 13 0.003 0.005 0.006 0.006 0.011 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.001 0.002 0.002 0.004 0.006 Bunyip River at North Labertouche Road, 12 0.001 0.001 0.002 0.002 0.004 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.001 0.001 0.002 0.003 0.005 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.001 0.001 0.002 0.004 0.005 Bunyip River at Healesville Koo Wee Rup Road, 12 0.001 0.001 0.003 0.003 0.008 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.001 0.001 0.001 0.003 0.024 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.001 0.001 0.002 0.003 0.005 Chinamans Creek at Eastborne Road, Rosebud West 13 0.001 0.002 0.002 0.003 0.005 Deep Creek at Ballarto Road, Rythdale 12 0.002 0.004 0.005 0.006 0.013 Dunns Creek at Marine Drive, Safety Beach 13 0.001 0.002 0.002 0.004 0.012 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.001 0.001 0.002 0.002 0.005 Lang-Lang River at South Gippsland Highway, Lang 12 0.001 0.001 0.003 0.005 0.014 Lang Main Creek at Boneo Road, Flinders 13 0.001 0.001 0.001 0.003 0.005

Merricks Creek at end Bridge Street, Merricks 13 0.001 0.002 0.003 0.004 0.007 Tarago River at Morrisons Road, Labertouche 12 0.001 0.001 0.002 0.003 0.004 Toomuc Creek at Princes Highway, Pakenham 12 0.001 0.001 0.002 0.002 0.005 Toomuc Creek at Ballarto Road, Rythdale 12 0.001 0.002 0.003 0.004 0.008 Warrangine Creek at Frankston-Flinders Road, 13 0.001 0.002 0.003 0.005 0.006 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.001 0.002 0.003 0.006 0.008 Somerville Yallock Outfall at South Gippsland Highway, 12 0.001 0.002 0.003 0.006 0.008 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.001 0.002 0.002 0.003 0.004 Maribyrnong River at Canning Street, Avondale 12 0.001 0.001 0.002 0.002 0.003 Heights Steele Creek at Rose Avenue, Niddrie 12 0.002 0.003 0.004 0.006 0.018 Stony Creek at Bena Street, Yarraville 12 0.003 0.005 0.006 0.007 0.010 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.001 0.002 0.003 0.004 0.009 Kororoit Creek at Racecourse Road, Altona 12 0.003 0.005 0.007 0.010 0.015 Skeleton Creek at Ayr Street, Laverton 12 0.001 0.002 0.003 0.003 0.005 Total Nickel (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.003 0.003 0.004 0.005 0.012 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.001 0.002 0.002 0.003 0.003 Brushy Creek at Lower Homestead Road, Wonga 12 0.003 0.004 0.005 0.006 0.007 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.001 0.001 0.002 0.002 0.016 Darebin Creek at Clark Road, Ivanhoe 12 0.004 0.005 0.008 0.011 0.016 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.002 0.003 0.004 0.005 0.007 Diamond Creek at Main Road, Eltham 12 0.003 0.003 0.004 0.006 0.009 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.004 0.005 0.013 0.021 0.088 Jumping Creek at Brysons Road, Wonga Park 12 0.002 0.003 0.004 0.005 0.011 Koonung Creek at Bulleen Road, Bulleen 12 0.003 0.003 0.004 0.005 0.010 Little Yarra River at Corduroy Road, Yarra Junction 12 0.001 0.001 0.001 0.002 0.005 Merri Creek at Summerhill Road, Craigieburn 12 0.003 0.004 0.005 0.007 0.014 Merri Creek at Roseneath Street, Yarra Bend 12 0.003 0.004 0.004 0.005 0.008 Moonee Ponds Creek at Mt Alexander Road, 12 0.003 0.005 0.005 0.006 0.010 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.002 0.002 0.003 0.005 0.009 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.002 0.003 0.004 0.006 0.010 Plenty River at Plenty Gorge, South Morang 12 0.003 0.003 0.004 0.005 0.009 Plenty River at Henty Road, Lower Plenty 12 0.002 0.003 0.004 0.004 0.006 Ruffy Creek at Parker Street, Templestowe 12 0.002 0.002 0.003 0.003 0.008

Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.001 0.003 0.003 0.004 0.006 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.001 0.003 0.003 0.003 0.006 Wandin Yallock Creek at Killara Road, Gruyere 12 0.001 0.002 0.003 0.004 0.007 Watsons Creek at Henley Road, Kangaroo Ground 12 0.001 0.002 0.002 0.003 0.005 Watts River at Healesville-Kinglake Road, 12 0.001 0.001 0.001 0.002 0.003 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.001 0.001 0.002 0.002 0.004 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.001 0.002 0.002 0.002 0.003 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.001 0.001 0.001 0.002 0.002 Yarra River at Don Road, Launching Place 12 0.001 0.001 0.001 0.001 0.003 Yarra River at Everard Park Maroondah Highway, 12 0.001 0.001 0.001 0.002 0.003 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.001 0.001 0.001 0.002 0.003 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.001 0.001 0.001 0.001 0.004 Yarra River at Chandler Highway, Kew 12 0.001 0.002 0.003 0.003 0.004 Yarra River at Princes Bridge, South Melbourne 12 0.004 0.006 0.008 0.015 0.023 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.001 0.003 0.003 0.004 0.006 Rowville Dandenong Creek upstream Sheffield Road, 13 0.001 0.001 0.001 0.002 0.008 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.001 0.002 0.004 0.005 0.008 Dandenong Creek at Stud Road, Dandenong North 13 0.001 0.003 0.004 0.005 0.011 Dandenong Creek at Pillars Crossing, Dandenong 13 0.001 0.003 0.004 0.006 0.009 South Elster Creek at Cochrane Street, Elwood 12 0.003 0.004 0.004 0.006 0.011 Eumemmerring Creek at Worsley Road, Bangholme 13 0.002 0.005 0.006 0.007 0.020 Hallam Valley Main Drain at South Gippsland 13 0.001 0.003 0.003 0.005 0.008 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.001 0.011 0.022 0.028 0.058 Mile Creek at Cheltenham Road, Keysborough 13 0.004 0.004 0.005 0.006 0.008 Mordialloc Creek at end Wells Road, Mordialloc 13 0.004 0.005 0.006 0.008 0.021 Patterson River, National Water Sports Centre outlet, 13 0.004 0.006 0.007 0.009 0.012 Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.001 0.002 0.005 0.006 0.014 Bunyip River at North Labertouche Road, 12 0.001 0.001 0.001 0.001 0.001 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.001 0.001 0.001 0.001 0.003 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.001 0.001 0.001 0.002 0.003 Bunyip River at Healesville Koo Wee Rup Road, 12 0.001 0.001 0.001 0.002 0.004 Koo Wee Rup

Cardinia Creek at Chadwick Road, Upper 12 0.001 0.001 0.001 0.002 0.004 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.001 0.002 0.002 0.003 0.005 Chinamans Creek at Eastborne Road, Rosebud West 13 0.003 0.006 0.010 0.014 0.026 Deep Creek at Ballarto Road, Rythdale 12 0.003 0.005 0.005 0.006 0.007 Dunns Creek at Marine Drive, Safety Beach 13 0.001 0.004 0.006 0.008 0.010 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.001 0.002 0.003 0.003 0.004 Lang-Lang River at South Gippsland Highway, Lang 12 0.002 0.003 0.003 0.004 0.009 Lang Main Creek at Boneo Road, Flinders 13 0.001 0.004 0.006 0.008 0.014 Merricks Creek at end Bridge Street, Merricks 13 0.001 0.005 0.007 0.020 0.024 Tarago River at Morrisons Road, Labertouche 12 0.001 0.001 0.001 0.002 0.004 Toomuc Creek at Princes Highway, Pakenham 12 0.001 0.002 0.002 0.003 0.007 Toomuc Creek at Ballarto Road, Rythdale 12 0.002 0.003 0.003 0.004 0.009 Warrangine Creek at Frankston-Flinders Road, 13 0.001 0.002 0.004 0.005 0.020 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.001 0.006 0.013 0.020 0.032 Somerville Yallock Outfall at South Gippsland Highway, 12 0.005 0.006 0.007 0.009 0.011 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.004 0.004 0.005 0.005 0.008 Maribyrnong River at Canning Street, Avondale 12 0.004 0.004 0.005 0.005 0.008 Heights Steele Creek at Rose Avenue, Niddrie 12 0.004 0.005 0.007 0.008 0.012 Stony Creek at Bena Street, Yarraville 12 0.004 0.004 0.005 0.007 0.011 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.003 0.004 0.005 0.006 0.008 Kororoit Creek at Racecourse Road, Altona 12 0.006 0.008 0.009 0.017 0.036 Skeleton Creek at Ayr Street, Laverton 12 0.003 0.004 0.006 0.007 0.011 Total Zinc (mg/L) n Minimum 25th 50th 75th Maximum Percentile Percentile Percentile Yarra Catchment Andersons Creek at Everard Drive Bridge, 12 0.012 0.015 0.019 0.024 0.059 Warrandyte Arthurs Creek at Burkes Bridge, Hurstbridge 11 0.001 0.006 0.008 0.009 0.030 Brushy Creek at Lower Homestead Road, Wonga 12 0.021 0.026 0.032 0.038 0.110 Park Cockatoo Creek at Tschampions Road, Macclesfield 12 0.003 0.004 0.005 0.006 0.026 Darebin Creek at Clark Road, Ivanhoe 12 0.028 0.052 0.058 0.067 0.120 Diamond Creek at Strathhaven Road, Cottles Bridge 11 0.004 0.006 0.008 0.010 0.017 Diamond Creek at Main Road, Eltham 12 0.026 0.031 0.041 0.050 0.084 Gardiners Creek at Glenferrie Road, Hawthorn 12 0.041 0.067 0.082 0.120 0.700 Jumping Creek at Brysons Road, Wonga Park 12 0.007 0.009 0.011 0.016 0.120 Koonung Creek at Bulleen Road, Bulleen 12 0.043 0.064 0.081 0.087 0.180 Little Yarra River at Corduroy Road, Yarra Junction 12 0.004 0.006 0.006 0.007 0.078

Merri Creek at Summerhill Road, Craigieburn 12 0.005 0.005 0.006 0.008 0.019 Merri Creek at Roseneath Street, Yarra Bend 12 0.026 0.041 0.046 0.061 0.380 Moonee Ponds Creek at Mt Alexander Road, 12 0.027 0.041 0.051 0.074 0.530 Parkville Mullum Mullum Creek at Deep Creek Reserve, 12 0.022 0.025 0.034 0.046 0.120 Warrandyte Olinda Creek at Macintyre Lane, Coldstream 12 0.008 0.012 0.015 0.020 0.041 Plenty River at Plenty Gorge, South Morang 12 0.004 0.004 0.006 0.008 0.011 Plenty River at Henty Road, Lower Plenty 12 0.013 0.020 0.024 0.028 0.089 Ruffy Creek at Parker Street, Templestowe 12 0.031 0.054 0.060 0.068 0.120 Steels Creek at Healesville-Yarra Glen Road, Yarra 7 0.004 0.005 0.009 0.010 0.013 Glen Stringybark Creek at St. Huberts Road, Yering 12 0.001 0.004 0.004 0.008 0.013 Wandin Yallock Creek at Killara Road, Gruyere 12 0.003 0.004 0.006 0.008 0.027 Watsons Creek at Henley Road, Kangaroo Ground 12 0.003 0.004 0.005 0.007 0.012 Watts River at Healesville-Kinglake Road, 12 0.007 0.007 0.009 0.012 0.036 Healesville Woori Yallock Creek at Macclesfield-Woori Yallock 12 0.004 0.005 0.006 0.007 0.020 Road, Yellingbo Woori Yallock Creek at Warburton Highway, Woori 12 0.004 0.005 0.006 0.006 0.011 Yallock Yarra River at McKenzie-King Drive, Millgrove 12 0.002 0.003 0.004 0.005 0.024 Yarra River at Don Road, Launching Place 12 0.003 0.004 0.006 0.008 0.024 Yarra River at Everard Park Maroondah Highway, 12 0.003 0.004 0.005 0.006 0.026 Healesville Yarra River at Spadonis Reserve, Coldstream 7 0.005 0.005 0.005 0.007 0.011 Yarra River at Warrandyte Road Bridge, Warrandyte 12 0.004 0.005 0.007 0.008 0.013 Yarra River at Chandler Highway, Kew 12 0.014 0.016 0.022 0.026 0.058 Yarra River at Princes Bridge, South Melbourne 12 0.012 0.020 0.028 0.037 0.060 Dandenong Catchment Corhanwarrabul Creek at Wellington Road, 13 0.015 0.027 0.031 0.042 0.088 Rowville Dandenong Creek upstream Sheffield Road, 13 0.003 0.004 0.007 0.017 0.039 Doongalla Forest Dandenong Creek at Boronia Road, Wantirna 13 0.053 0.100 0.140 0.170 0.500 Dandenong Creek at Stud Road, Dandenong North 13 0.024 0.042 0.054 0.096 0.110 Dandenong Creek at Pillars Crossing, Dandenong 13 0.024 0.070 0.085 0.100 0.170 South Elster Creek at Cochrane Street, Elwood 12 0.120 0.160 0.210 0.290 0.360 Eumemmerring Creek at Worsley Road, Bangholme 13 0.012 0.032 0.041 0.058 0.120 Hallam Valley Main Drain at South Gippsland 13 0.008 0.010 0.017 0.029 0.042 Highway, Hampton Park Kananook Creek at Wells Street, Frankston 13 0.024 0.039 0.047 0.064 0.170 Mile Creek at Cheltenham Road, Keysborough 13 0.079 0.180 0.190 0.290 0.340 Mordialloc Creek at end Wells Road, Mordialloc 13 0.016 0.040 0.067 0.079 0.190 Patterson River, National Water Sports Centre outlet, 13 0.015 0.043 0.051 0.072 0.280

Bangholme Westernport Catchment Balcombe Creek at Uralla Drive, Mt Martha 13 0.010 0.018 0.025 0.045 0.051 Bunyip River at North Labertouche Road, 12 0.003 0.003 0.005 0.006 0.025 Labertouche Bunyip River downstream of Cannibal Creek, 12 0.003 0.005 0.006 0.007 0.011 Longwarry North Bunyip Main Drain at Little Road, Iona 12 0.004 0.005 0.006 0.007 0.013 Bunyip River at Healesville Koo Wee Rup Road, 12 0.003 0.004 0.005 0.007 0.010 Koo Wee Rup Cardinia Creek at Chadwick Road, Upper 12 0.001 0.003 0.004 0.008 0.028 Beaconsfield Cardinia Creek at Ballarto Road, Cardinia 12 0.004 0.006 0.007 0.013 0.042 Chinamans Creek at Eastborne Road, Rosebud West 13 0.007 0.011 0.013 0.014 0.049 Deep Creek at Ballarto Road, Rythdale 12 0.009 0.013 0.016 0.020 0.032 Dunns Creek at Marine Drive, Safety Beach 13 0.005 0.007 0.010 0.012 0.018 Lang-Lang River at Drouin-Poowong Road, Athlone 12 0.004 0.004 0.007 0.008 0.028 Lang-Lang River at South Gippsland Highway, Lang 12 0.003 0.006 0.008 0.013 0.023 Lang Main Creek at Boneo Road, Flinders 13 0.001 0.003 0.004 0.007 0.012 Merricks Creek at end Bridge Street, Merricks 13 0.004 0.019 0.021 0.038 0.096 Tarago River at Morrisons Road, Labertouche 12 0.002 0.004 0.005 0.007 0.011 Toomuc Creek at Princes Highway, Pakenham 12 0.005 0.008 0.009 0.011 0.015 Toomuc Creek at Ballarto Road, Rythdale 12 0.003 0.007 0.008 0.009 0.024 Warrangine Creek at Frankston-Flinders Road, 13 0.014 0.018 0.035 0.054 0.090 Hastings Watsons Creek at Dandenong-Hastings Road, 13 0.016 0.025 0.030 0.040 0.096 Somerville Yallock Outfall at South Gippsland Highway, 12 0.004 0.008 0.008 0.009 0.014 Monomeith Maribyrnong Catchment Maribyrnong River at Brimbank Park Ford, Keilor 12 0.005 0.006 0.009 0.011 0.043 Maribyrnong River at Canning Street, Avondale 12 0.004 0.006 0.007 0.009 0.016 Heights Steele Creek at Rose Avenue, Niddrie 12 0.026 0.035 0.050 0.100 0.230 Stony Creek at Bena Street, Yarraville 12 0.064 0.105 0.165 0.185 0.370 Werribee Catchment Kororoit Creek at Millbank Drive, Deer Park 12 0.008 0.011 0.012 0.018 0.046 Kororoit Creek at Racecourse Road, Altona 12 0.016 0.023 0.030 0.038 0.050 Skeleton Creek at Ayr Street, Laverton 12 0.009 0.014 0.018 0.021 0.030