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February 14 2014: Coalition Water Consultants Given Top Jobs

February 4 2013: State To Lay Claim To Melbourne's Stormwater

November 15 2012: Red Light Flashes On Melbourne Water's Debt Risk

November 7 2012: Desal Plant Delay Penalties Refused

November 2 2012: Water Bills Soar To Pay For Desal Plant

September 19 2012: Minister Accused Of Desal Spin On Water Bills

June 25 2012: Dammed If We Do Or Don't But The Desal Will Cost Us Plenty

June 19 2012: Melbourne Water In Bill Bungle Backflip

June 17 2012: Pesticide Found Near Drinking Water Dam

June 16 2012: Desal Hiccup Hands Over $118m Lib Dividend

June 14 2012: Water Billing Scandal Grows

June 13 2012: Water Bill Bungle Hits Households

August 24 2011: Melbourne Water Apologises For Spying On Pipeline Protest Farmer

June 21 2011: Water Bills May Jump By A Third

January 24 2010: Waterbill Rise Quietly Pays For $70m Upgrade

July 24 2009: Gunnamatta Outfall Plan Dumped

Feb 17 2009: Dash To Save Melbourne's Drinking Water

See Port Phillip Bay dredging here

New maps of Sugarloaf Reservoir Catchment here

Information about Catchments Upstream of Sugarloaf here

Goulburn River a new source of Melbourne's drinking water?

June 5 2008: Mercury Poisoning Linked to Dolphin Deaths

What's in your water?

Incomplete list of treatment chemicals used in 2012/3 to make Melbourne Water safe

Estimated Quantity
2646 tonnes
Boral Cement
824 tonnes
Orica Chemicals
Aluminium Sulphate
5377 tonnes
Omega Chemicals
Caustic Soda
9355 litres
Orica Chemicals
Soda Ash
3 tonnes
Redox Chemicals
38 tonnes
SNF Australia Pty Ltd
Fluorosilicic Acid
1058 tonnes
Incitec Pivot
Aluminium Chlorohydrate
11,000 litres
Omega Chemicals
6260 litres
Orica Chemicals
Carbon Dioxide
153 tonnes
Sodium Hypochlorite
288,000 litres
Orica Chemicals
Sodium Silicofluoride Slurry
790 tonnes
Consolidated Chemical Co.
Sodium Fluoride
3 tonnes
Orica Chemicals


"*aluminium was a known neurotoxin, or nerve poison, and dissolved aluminium was the most toxic and 'bio-available' form of metal and therefore the most potentially damaging to humans"Source for table and quote p50-52 The Water You Drink How Safe Is It? John Archer 1996.

Click here to find older source of Melbourne Water's fluoride

"World Health Organization recommends that at and above 26.7C (80F), drinking water supplies should not contain more than 0.6ppm fluoride. In Melbourne throughout the summer there are many days in which temperatures exceed 30C (95F) and reach over 40C and over. An example is 25th January - the temperature in Melbourne rose to 43.3C (110F) and the water consumption was a massive total of 2050 megalitres (455.5 million gallons) in the 24 hour period. The fluoride content was 0.8ppm.

On such a day Melbourne people were overdosed with fluoride and the ratepayers will be paying for more than 2 tonnes of fluoride plus 6 tonnes of lime to neutralize the acidity caused by the fluoride (to protect the water pipes from corrosion) and many tonnes of aluminium sulphate - all this added to what was once considered one of the world's purest water supplies.

It would be safe to say that no Australian industrial plant would ever be permitted to pollute the environment with 2 tonnes of fluoride in one day but now they can do it indirectly!"

p420 Fluoridation Poison on Tap By Glen S.R. Walker 1982.


For information on Victoria's Alcoa aluminium smelter at Portland please click here

Reservoir at John's Hill Reserve (Kallista). Headwaters of Menzies Creek. During February 2000, Melbourne Water detected the pesticides, Aldrin, Lindane and Heptachlor in the water at this reservoir. The Aldrin levels were above the guideline limit. All three pesticides are Organochlorines, carcinogens & suspected endocrine disruptors. Heptachlor is also a developmental and reproductive toxin.

ANZECC Trigger Levels Here

Melbourne's Top Water Users Here

More information on Yarra River here

Melbourne Water fined for pollution incidents(August 2007)

Libs Urge Action on Ocean Spill (age 2/1/08)

Bay Hit By Fish Health Scare 18/1/08

You Don't Miss Your Water Until Your Well Runs Dry

Original leaflet (below) produced by Bay Rescue 1997.

It is true that the ocean, bay and streams, that give the region of greater Melbourne its unique character, have become so badly contaminated with the wastes of the city, that bodies such as the C.S.I.R.O., the Environment Protection Authority and the Health Department, have warned the public not to swim or eat shellfish or risk serious illness.

"Dieldrin and DDT were widespread in fillet and liver of fish throughout the bay . . . testing for organic toxicants detected Phthlate Esters, P.C.B's and Organochlorine pesticides in many instances." C.S.I.R.O. Port Phillip Bay Environment Study 1996.

It is also true that the region's once thriving fish resources are in serious decline. This is evident in substantially reduced recreational and commercial fish catches and backed up by recent government reports.

Click here for Links


Message for punters at Gunnamatta Beach

The Melbourne Water Corporation through their major Sewage plants dump 1 billion litres a day of semi treated sewage and industrial waste into the Bay at Werribee and into the ocean at Gunnamatta Beach on the Mornington Peninsula. Barwon Water dump a further 60,000 litres per day near 13th Beach on the West Coast.

greater melbourne region showing major sewage outlets

The effluent from these outfalls include domestic sewage (your waste) and a cocktail of poisons, that industries pay Melbourne Water to dump into the sewers.

There is also substantial discharge of contaminants from major stormwater drains. These drains offer a tempting alternative for those wishing to illegally dump pollutants into the sea and avoid Melbourne Water licencing fees.

Gunnamatta Beach


Melbourne Water are chained to their infrastructure - an outdated network of drains, pipes and treatment plants that channel the city's wastes into the sea.

Creative and realistic alternatives to bay and ocean dumping such as composting toilets and grey water systems exist. Melbourne Water does not have any incentive to promote alternatives or change their ways. Their current charter is to make financial profit through their existing infrastructure and these alternatives compete directly with their profit making ability.

"Port Phillip Bay is chronically contaminated with Petroleum and Chlorinated Hydrocarbons" C.S.I.R.O. Port Phillip Bay Environment Study 1996.


The extent to which the ocean, bay and streams are polluted has to be looked at from a variety of aspects.

*the degradation of reef, sea floor and fresh water habitats from pollution.

*the inability of estuaries to function as fish breeding nurseries because of sediment loads and pollution.

*the contamination of the fisheries themselves.

*deterioration of water quality to a degree where it is dangerous and unpleasant to use beaches for recreation purposes such as swimming, surfing and diving.

There is clear evidence of severe ecological decline of our waterways within only a few generations, species of marine flora and fauna have disappeared completely or have been substantially reduced in numbers.

Initiatives to preserve the integrity of waterways, are one step forward, two steps backwards while government policy is to profit from pollution.

contaminated dredge spoil dumped onto Mordialloc Beach


Melbourne Water and Government Departments will tell us, we live in a large city and pollution is a fact of life. It can seem extremely intimidating for individuals to question these powers. Carefully orchestrated campaigns are designed to hide the continued degradation of our waterways.

Huge amounts of money is spent by Melbourne Water on glossy P.R. exercises, with images of clear water, dolphins and platypus. In association with paternalistic arguements, these methods convince the public to believe all is OK. But nothing can excuse or legitimise the destruction.

We all know that dumping tonnes of poison into the sea is not good for us, our children and future generations. For hundreds of thousands of years the natural systems sustainaed and nurtured the people of this land.

There was a time not so long ago when the tide pushed emerald green water from the ocean up the estuaries of the bays, creeks and rivers. Bream, Mullet, Trevally, juvenile Snapper and Whiting swam amongst the reeds and seagrass, through the channels and holes, and across the sandbars. While further upstream Freshwater Crayfish, Tupong, Perch, Blackfish and Bass waited amongst the snags along the banks. Families picnicked in the shade of Paperbarks, Teatree, Manna Gums and Peppermints, as children fished and splashed in the clean creek water.

Although looking at our streams and beaches today, these images may seem worlds away, it is our dream that once again a green tide push up the esturaries and the fish and life return.

Melbourne Water Corporation

Toxic waves at Gunnamatta

*Melbourne Water dump 1 Billion Litres a day of semi-treated sewage and industrial waste into the ocean and bay.

*Companies pay Melbourne Water to discharge industrial waste into the sewage system.

*In the year 1996/7 Melbourne Water had an operating profit of $173 million for their sewage activities.

*Industrial (trade) waste makes-up 16% of the total sewage load but constitutes 50% of all toxicants and nutrients.

*Dangerous lethal poisons such as heavy metals (Lead, Cadmium, Mercury and Arsenic), Organic toxicants (Dioxin, PCB's, Chlorinated Hydrocarbons, Petroleum) and nutrients (Phosphates and Nitrogen) are contained in effluent discharged into the sea by Melbourne Water.

*Land-based disposal of sewage would be made more viable if dangerous poisons were extracted.

*Melbourne Water do not envisage the seperation of industrial waste from the domestic sewage stream.

The Victorian EPA

*The EPA are the body given the job of regulating and monitoring the discharge of pollutants into the environment.

*The Victorian EPA had an operation budget in (1996/7) of $27.5 million compared with their NSW counterparts of $74 million.

*In the year 1996/7 the NSW EPA laid 134 charges against polluters with fines totalling over $700,000. In the same year the Victorian EPA laid 21 charges with fines totalling $83,000.

*Since the Kennett Government came to power in 1992, the EPA have been forced into a co-operative relationship with polluters.

*The EPA do not have the resources to even check the data from companies licensed to pollute.

*From 1990/91 to 1996/7 pollution abatement notices to industry fell from 228 to 90. Prosecutions for polluters fell from 42 to 21 and prosecutions for waste fell from 61 to 11.

*In the same period prosecutions to the public for littering rose from 400 to 2683.

Pollution Make Up

What's in the lethal brew that is dumped into the ocean and bay?

Nutrients: (eg Phosphates and Nitrogen)

These pollutants, emanating from sewage trade waste (food processing), detergents and agriculture (fertilisers, herbicides) can lead to toxic algal blooms, pollution of the reef and sea floor habitat, the degradation of fisheries and degraded water quaility.

Heavy Metals: (eg Mercury, Lead, Cadmium, Arsenic)

These are elementary toxins that emanate predominantly from industrial activity (car manufacturing, electroplating, plant manufacturers etc) and also road run-offs. Heavy metals settle and accumulate in sediment on the sea floor and estuaries and are absorbed in the marine eco-system, marine plants and animals (particularly shellfish). Some heavy metals are lethal if ingested by humans eating contaminated seafood. They bio-accumulate* in the flesh and vital organs of animal species.

Organic Toxicants: (eg Dioxin, Petroleum, PCB's, Dieldrin)

These contaminants are products of the modern industrial society, many like Dioxins and Dieldrin and DDT are designed specifically to destroy life. They cause genetic damage in plant and animal life forms and remain for long periods in the environment and bio-accumulate* in living beings.

*Bio-accumulate - When toxicants travel up the food chain (ie big fish eat little fish) and their toxicity increases.

Bacterial Contaminants: (eg E.Coli and Streptococci)

These are micro-organisms that emanate from the gut of mammals and can be transferred into our waterways through sewers. Bacteria can cause serious eye, ear, throat and intestinal infections. Certain strains of streptococci and ecoli can cause lethal diseases such as Meningitis.

C.S.I.R.O. Port Phillip Bay Environment Study 1996.

In 1997, with much fanfare and an associated public relations campaign, Melbourne Water released their '1992-1996 Port Phillip Bay Environment Study'. Images of clear bay waters, colourful fish and dolphins flashed across TV screens, full page newspaper advertisements and even the sides of city trams.

The study was conducted by the CSIRO at a cost of $12 million. The findings which according to the Minister for Conservation, Mrs Marie Tehan, gave the bay an 'environmental clean bill of health' were released to the public in the form of a 32 page "glossy" which lifted selected data interpretation from the studies thousands of pages of research data.

What follows are some selected quotes from the Bay Study's Technical Reports that were not released to the public:

*"Dieldrin and DDT wide spread in the liver and fillet of fish thoughout the bay."

*"Tests for organic toxicants detected Phthalate Esters, PCB's, Phenol's, Chlorinated Hydrocarbons in Flathead and Mullet."

*"Petroleum Hydrocarbons exceeded the threshold for taste-tainting in fish flesh at three separate sites".

*"Port Phillip Bay is chronically contaminated with Petroleum and Chlorinated Hydrocarbons".

*"It is estimated (heavy metals in sewage effluent from Werribee) in general represent an increase of between 20% and 50% compared to 1980-81 data."

*Dieldrin in fish liver was twice the health limit (in the Geelong Arm)."

*Mussels from sites such as the Rippleside area still exceed the health limits (for lead contamination)."

*"Lesions, local haemorrhages and cutaneous erytherma were found on Spikey Globefish after a major fish kill."

*"Sand Flathead had severe visceral haemosiderosis. The condition was accompanied by high tissue cadmium and lead."

*"Industries holding current licences are self regulating, with reports of discharged concentrations being supplied to the EPA who do not have the resources to undertake checks of the data."

pollution casualties: dead fish and eels in the estuary of Mordialloc Creek

Gunnamatta Beach Sewage Outfall


Clean Ocean Foundation (1)

Clean Ocean Foundation (2)

Australian Services Union

Green Left Article

Greg Hunt MP


Sewage Access Road pushed through Aboriginal Midden at Gunnamatta Beach

Melbourne's Top Water Users according to Herald Sun 31/10/07

101 Collins Street AMP Capital Investors Air Liquide Australia
Albright & Wilson Australia Aisco Aisco Mulgrave
Aluminium Profiles Australia Amcor Fibre Packaging Australasia Amcor Packaging (Aust)
AMP PC SC Arnott's Snackfoods ASSA ABLOY Australia
Ausco Fitzroy Austin Hospital Australia On Collins
Australian Textile Company Australian Vinyls Corporation Balada Poultry
Barrett Burston BASF Australia Bayside Health
Betta Foods Australia Bluescope Steel BOC
Boral Aust Gypsum Box Hill Hospital BPL Melbourne
Bradmill (closed) Broadmeadows Shopping Centre Bundoora Park
CSL - Bioplasma Division Cadbury Schweppes Cargill Processing
Castricum Brothers Centro Box Hill Shopping Centre Centro The Glen Shopping Centre
Chadstone Shopping Centre Chiquita Mushrooms City of Brimbank
City of Melbourne City West Water Coca-Cola Amatil (AUST)
Coogee Energy Corrections Victoria - Metropolitan Remand Centre Crown Melbourne
Crowne Plaza Melbourne Cryovac Australia CSL
Dandenong Hospital DB BREEF Funds Management Department of Defence
Department of Justice Department of Treasury & Finance Department of Defence - HMAS Cerberus
Dow Chemical Australia Eastland Shopping Centre Ecogen Energy
Encore Tissue Ensign Services Vic Epworth Hospital
Ernest Smith Contracts Esso Aust Fed Square
Ford Motor Company Forest Hill Shopping Centre Foster's Australia - Abbotsford Brewery
Foster's Australia - Airport West (closed) Freshwater Commercial No 1 & 2 G & K O'Connor
G A Gathercole G M Holden Genevieve Yarn Dyers
George Weston Foods Glaxosmithkline Aust Golden Circle
Goodman Fielder GPT Management Grand Hyatt Melbourne
Greensborough Plaza Shopping Centre Hawker De Havilland Hexion Speciality Chemicals - Laverton North
Highpoint Shopping Centre Hobsons Bay City Council Holeproof
Huhtamaki Australia Huntsman Chemical Company Australia Independent Distillers
Industry Park Inghams Enterprises Inghams Enterprises Thomastown International Flavours & Fragrances (Australia)
ISPT Kraft Foods La Ionica Poultry
Lafarge Plasterboard Latrobe University Leading Synthetics
Leading Textiles Lesaffre Australia Pacific Maroondah Hospital
Mayne Pharma Melb Live Melbourne & Olympic Park Management
Melbourne Airport Melbourne Central Melbourne Central Tower
Melbourne Cricket Club Melbourne Health Melbourne Linen Service
Melbourne Market Authority Melbourne Stadiums Melbourne Water
Mobil Refining Australia Monash Medical Centre Clayton Monash University
Moonee Valley Racing Club Mrs Crockets Properties Myer (NB Lonsdale)
National Foods Milk - Vic Nestle Co Aust Nestle Confectionery
Nestle Peters New Wave Leathers Nissan Castings Australia
Northland Shopping Centre Nufarm Chemicals O-I Asia Pacific
Olex Australia One Steel Orica Australia
Pacific Brands Hosery Pacific Shopping Centres Australia - Werribee Plaza Pacifica Group
Parmalat Australia PCH Melbourne Peerless Holdings
Peninsula Health Peter James Centre Peter MacCallum Cancer Institute
Phillip Morris Pilkington Aust Princes Laundry Services - Box Hill
Princes Laundry Services - Preston Princes Laundry Services Qenos Olefins
Qenos Plastics Qenos Resins QV Property Management
Repatriation Hospital Ridders Fresh RMIT University
Robert Bosch (Aust) Royal Children's Hospital Royal Melbourne Hospital
Royal Women's Hospital Sakata Rice Snacks Sca Hygiene Australasia
Simpson Army Barracks Sisters of Charity South Pacific Tyers
Southgate Hotel Management Southland Trust Spotless Linen Services
St Frances Xavier Cabrini Hospital St Martins Victoria & Grollo Australia - Rialto Towers St Vincent's Hospital
State Sports Centres Trust Stericlean Linen Services Sugar Australia
Sunshine Hospital Symex Holdings The Cabrini Linen Service
The Northern Hospital Toyota Motor Corporation University of Melbourne
Venture Industries Victoria Racing Club Victoria Wool Processors
Victorian Arts Centre (shared with National Gallery of Victoria) Visy Beverage Division Visy Pulp & Paper - Reservoir
Visy Pulp & Paper - Coolaroo Westfield Shopping Centre Westfield Shopping Centre (Management Co (Vic)
Zoological Board of Victoria    


ANZECC Trigger Levels

Table 3.4.1 Trigger vales for toxicants at alternative levels of protection. Values in pink text are the trigger values applying to typically slightly-moderately disturbed systems; see table 3.4.2 and Section for guidance on applying these levels to different ecosystem conditions.

Trigger Values for marine water (ugL-1)

Metals and Metalloids

  99% 95% 90% 80%
Aluminium pH >6.5 ID ID ID ID
Aluminium pH <6.5 ID ID ID ID
Antimony ID ID ID ID
Arsenic (AsIII) ID ID ID ID
Arsenic (As V) ID ID ID ID
Beryllium ID ID ID ID
Bismuth ID ID ID ID
Cadmium h 0.7 b 5.5 b, c 14 b, c 36 b, a
Chromium (CrIII) h 7.7 27.4 48.6 90.6
Chromium (CrVI) 0.14 4.4 20 c 85 c
Cobalt 0.005 1 14 150 c
Copper h 0.3 1.3 3 c 8 a
Gallium ID ID ID ID
Lanthanum ID ID ID ID
Lead h 2.2 4.4 6.6 c 12 c
Manganese ID ID ID ID
Mercury (inorganic) b 0.1 0.4 c 0.7 c 1.4 c
Mercury (methyl) ID ID ID ID
Molybdenum ID ID ID ID
Nickel h 7 70 c 200 a 560 a
Selenium (Total) b ID ID ID ID
Selenium (SelV) b ID ID ID ID
Silver 0.8 1.4 1.8 2.6 c
Thallium ID ID ID ID
Tin (inorganic, SnlV) ID ID ID ID
Tributyltin (as ug/L Sn) 0.0004 0.006 c 0.02 c 0.05 c
Uranium ID ID ID ID
Vanadium 50 100 160 280
Zinc h 7 15 c 23 c 43 c

Non-Metallic Inorganics

  99% 95% 90% 80%
Ammonia d 500 910 1200 1700
Chlorine e ID ID ID ID
Cyanide f 2 4 7 14
Nitrate j ID ID ID ID
Hydrogen sulfide g ID ID ID ID

Organic Alcohols

  99% 95% 90% 80%
Ethanol ID ID ID ID
Ethylene glycol ID ID ID ID
Isopropyl alcohol ID ID ID ID

Chlorinated Alkanes


  99% 95% 90% 80%
Dichloromethane ID ID ID ID
Chloroform ID ID ID ID
Carbon tetrachloride ID ID ID ID


  99% 95% 90% 80%
1,2-dichloroethane ID ID ID ID
1,1,1-trichloroethane ID ID ID ID
1,1,2-trichloroethane 140 1900 5800 c 18000 c
1,1,2,2-tetrachloroethane ID ID ID ID
Pentachloroethane ID ID ID ID
Hexachloroethane b 290 360 420 500


  99% 95% 90% 80%
1,1-dichloropropane ID ID ID ID
1,2-dichloropropane ID ID ID ID
1,3-dichloropropane ID ID ID ID

Chlorinated Alkenes

  99% 95% 90% 80%
Chloroethylene ID ID ID ID
1,1-dichloroethylene ID ID ID ID
1,1,2-trichloroethylene ID ID ID ID
1,1,2,2-tetrachloroethylene ID ID ID ID
3-chloropropene ID ID ID ID
1,3-dichloropropene ID ID ID ID


  99% 95% 90% 80%
Aniline ID ID ID ID
2,4-dichloroaniline ID ID ID ID
2,5-dichloroaniline ID
3,4-dichloroaniline 85 150 190 260
3,5-dichloroaniline ID ID ID ID
Benzidine ID ID ID ID
Dichlorobenzidine ID ID ID ID

Aromatic Hydrocarbons

  99% 95% 90% 80%
Benzene 500 c 700 c 900 c 1300 c
Toluene ID ID ID ID
Ethylbenzene ID ID ID ID
o-xylene ID ID ID ID
m-xylene ID ID ID ID
p-xylene ID ID ID ID
m+p-xylene ID ID ID ID
Cumene ID ID ID ID

Polycyclic Aromatic Hydrocarbons

  99% 95% 90% 80%
Naphthalene 50 c 70 c 90 c 120 c
Anthracene b ID ID ID ID
Phenanthrene b ID ID ID ID
Fluoranthene b ID ID ID ID
Benzo(a)pyrene b ID ID ID ID


  99% 95% 90% 80%
Nitrobenzene ID ID ID ID
1,2-dinitrobenzene ID ID ID ID
1,3-dinitrobenzene ID ID ID ID
1,4-dinitrobenzene ID ID
1,3,5-trinitrobenzene ID ID ID ID
1-methoxy-2-nitrobenzene ID ID ID ID
1-methoxy-4-nitrobenzene ID ID ID ID
1-chloro-2-nitrobenzene ID ID ID ID
1-chloro-3-nitrobenzene ID ID ID ID
1-chloro-4-nitrobenzene ID ID ID ID
1-chloro-2,4-dinitrobenzene ID ID ID ID
1,2-dichloro-3-nitrobenzene ID ID ID ID
1,3-dichloro-5-nitrobenzene ID ID ID ID
1,4-dichloro-2-nitrobenzene ID ID ID ID
2,4-dichloro-2-nitrobenzene ID ID ID ID
1,2,4,5-tetrachloro-3-nitrobenzene ID ID ID ID
1,5-dichloro-2,4-dinitrobenzene ID ID ID ID
1,3,5-trichloro-2,4-dinitrobenzene ID ID ID ID
1-fluoro-4-nitrobenzene ID ID ID ID


  99% 95% 90% 80%
2-nitrotoluene ID ID ID ID
3-nitrotoluene ID ID ID ID
4-nitrotoluene ID ID ID ID
2,3-dinitrotoluene ID ID ID ID
2,4-dinitrotoluene ID ID ID ID
2,4,6-trinitrotoluene ID ID ID ID
1,2-dimethyl-3-nitrobenzene ID ID ID ID
1,2-dimethyl-4-nitrobenzene ID ID ID ID
4-chloro-3-nitrotoluene ID ID ID ID

Chlorobenzenes and Chloronaphthalenes

  99% 95% 90% 80%
Monochlorobenzene ID ID ID ID
1,2-dichlorobenzene ID ID ID ID
1,3-dichlorobenzene ID ID ID
1,4-dichlorobenzene ID ID ID ID
1,2,3-trichlorobenzene b ID ID ID ID
1,2,4-trichlorobenzene b 20 80 140 240
1,3,5-trichlorobenzene b ID ID ID ID
1,2,3,4-tetrachlorobenzene b ID ID ID ID
1,2,3,5-tetrachlorobenzene b ID ID ID ID
1,2,4,5-tetrachlorobenzene b ID ID ID ID
Pentachlorobenzene b ID ID ID ID
Hexachlorobenzene b ID ID ID ID
1-chloronaphthalene ID ID ID ID

Polychlorinated Biphenyls (PCBs) & Dioxins

  99% 95% 90% 80%
Capacitor 21 b ID ID ID ID
Aroclor 1016 b ID ID ID ID
Aroclor 1221 b ID ID ID ID
Aroclor 1232 b ID ID ID ID
Aroclor 1242 b ID ID ID ID
Aroclor 1248 b ID ID ID ID
Aroclor 1254 b ID ID ID ID
Aroclor 1260 b ID ID ID ID
Aroclor 1262 b ID ID ID ID
Aroclor 1268 b ID ID ID ID
2,3,4'-trichlorobiphenyl b ID ID ID ID
4,4'-dichlorobiphenyl b ID ID ID ID
2,2',4,5,5'-pentachloro-1,1'biphenyl b ID ID ID ID
2,4,6,2',4,6'-hexachlorobiphenyl b ID ID ID ID
Total PCBs b ID ID ID ID
2,3,7,8-TCDD b ID ID ID ID

Phenols and Xylenols

  99% 95% 90% 80%
Phenol 270 400 520 720
2,4-dimethylphenol ID ID ID ID
Nonylphenol ID ID ID ID
2-chlorophenol t ID ID ID ID
3-chlorophenol t ID ID ID ID
4-chlorophenol t ID ID ID ID
2,3-dichlorophenol t ID ID ID ID
2,4-dichlorophenol t ID ID ID ID
2,5-dichlorophenol t ID ID ID ID
2,6-dichlorophenol t ID ID ID ID
3,4-dichlorophenol t ID ID ID ID
3,5-dichlorophenol t ID ID ID ID
2,3,4-trichlorophenol t ID ID ID ID
2,3,5-trichlorophenol t ID ID ID ID
2,3,6-trichlorophenol t ID ID ID ID
2,4,5-trichlorophenol t,b ID ID ID ID
2,4,6-trichlorophenol t,b ID ID ID ID
2,3,4,5-tetrachlorophenol t,b ID ID ID ID
2,3,4,6-tetrachlorophenol t,b ID ID ID ID
2,3,5,6-tetrachlorophenol t,b ID ID ID ID
Pentachlorophenol t,b 11 22 33 55 a


  99% 95% 90% 80%
2-nitrophenol ID ID ID ID
3-nitrophenol ID ID ID ID
4-nitrophenol ID ID ID ID
2,4-dinitrophenol ID ID ID ID
2,4,6-trinitrophenol ID ID ID ID

Organic Sulphur Compounds

  99% 95% 90% 80%
Carbon disulfide ID ID ID ID
Isopropyl disulfide ID ID ID ID
n-propyl sulfide ID ID ID ID
Propyl disulfide ID ID ID ID
Tert-butyl sulfide ID ID ID ID
Phenyl disulfide ID ID ID ID
Bis(dimethylthiocarbamyl)sulfide ID ID ID ID
Bis(diethylthiocarbamyl)disulfide ID ID ID ID
2-methoxy-4H-1,3,2-benzodioxaphosphorium-2-sulfide ID ID ID ID


  99% 95% 90% 80%
Potassium amyl xanthate ID ID ID ID
Potassium ethyl xanthate ID ID ID ID
Potassium hexyl xanthate ID ID ID ID
Potassium isopropyl xanthate ID ID ID ID
Sodium ethyl xanthate ID ID ID ID
Sodium isobutyl xanthate ID ID ID ID
Sodium isopropyl xanthate ID ID ID ID
Sodium sec-butyl xanthate ID ID ID ID


  99% 95% 90% 80%
Dimethylphthalate ID ID ID ID
Diethylphthalate ID ID ID ID
Dibutylphthalate b ID ID ID ID
Di(2-ethylhexyl)phthalate b ID ID ID ID

Miscellaneous Industrial Chemicals

  99% 95% 90% 80%
Acetonitrile ID ID ID ID
Acrylonitrile ID ID ID ID
Poly(acrylonitrile-co-butadiene-co-styrene) 200 250 280 340
Dimethylformamide ID ID ID ID
1,2-diphenylhydrazine ID ID ID ID
Diphenylnitrosamine ID ID ID ID
Hexachlorobutadiene ID ID ID ID
Hexachlorocyclopentadiene ID ID ID ID
Isophorone ID ID ID ID

Organochlorine Pesticides

  99% 95% 90% 80%
Aldrin b ID ID ID ID
Chlordane b ID ID ID ID
Dicofol b ID ID ID ID
Dieldrin b ID ID ID ID
Endosulfan b 0.005 0.01 0.02 0.05 a
Endosulfan alpha b ID ID ID ID
Endosulfan beta b ID ID ID ID
Endrin b 0.004 0.008 0.01 0.02
Heptachlor b ID ID ID ID
Lindane ID ID ID ID
Methoxychlor b ID ID ID ID
Mirex b ID ID ID ID
Toxaphene b ID ID ID ID

Organophosphorus Pesticides

  99% 95% 90% 80%
Azinphos methyl ID ID ID ID
Chlorpyrifos b 0.0005 0.009 0.04 a 0.3 a
Demeton ID ID ID ID
Demeton-S-methyl ID ID ID ID
Diazinon ID ID ID ID
Dimethoate ID ID ID ID
Fenitrothion ID ID ID ID
Malathion ID ID ID ID
Parathion ID ID ID ID
Profenofos b ID ID ID ID
Temephos b 0.0004 0.05 0.4 3.6 a

Carbamate & Other Pesticides

  99% 95% 90% 80%
Carbofuran ID ID ID ID
Methomyl ID ID ID ID
S-methoprene ID ID ID ID


  99% 95% 90% 80%
Deltamethrin ID ID ID ID
Esfenvalerate ID ID ID ID

Herbicides & Fungicides

Bypyridilium herbicides

  99% 95% 90% 80%
Diquat ID ID ID ID
Paraquat ID ID ID ID

Phenoxyacetic acid herbicides

  99% 95% 90% 80%
2,4,5-T ID ID ID ID

Sulfonylurea herbicides

  99% 95% 90% 80%
Bensulfuron ID ID ID ID
Metsulfuron ID ID ID ID

Thiocarbamate herbicides

  99% 95% 90% 80%
Molinate ID ID ID ID
Thiobencarb ID ID ID ID
Thiram ID ID ID ID

Triazine herbicides

  99% 95% 90% 80%
Amitrole ID ID ID ID
Atrazine ID ID ID ID
Hexazinone ID ID ID ID
Simazine ID ID ID ID

Urea herbicides

  99% 95% 90% 80%
Diuron ID ID ID ID
Tebuthiuron ID ID ID ID

Miscellaneous herbicides

  99% 95% 90% 80%
Acrolein ID ID ID ID
Bromacil ID ID ID ID
Glyphosate ID ID ID ID
Imazethapyr ID ID ID ID
Ioxynil ID ID ID ID
Metolachlor ID ID ID ID
Sethoxydim ID ID ID ID
Trifluralin b ID ID ID ID

Generic Groups of Chemicals


  99% 95% 90% 80%
Linear alkylbenzene sulfonates (LAS) ID ID ID ID
Alcohol ethoxyolated sulfate (AES) ID ID ID ID
Alcohol ethoxylated surfactants (AE) ID ID ID ID
Oils & Petroleum Hydrocarbons ID ID ID ID

Oil Spill Dispersants

  99% 95% 90% 80%
Corexit 7664 ID ID ID ID
Corexit 8667 ID ID ID ID
Corexit 9527 230 1100 2200 4400 a
Corexit 9550 ID ID ID ID

* = High reliability figure for esfenvalerate derived from mesocosm NOEC data (no alternative protection levels available)

a = Figure may not protect key test species from acute toxicity (and chronic) - check Section 8.3.7 for spread of data and its significance. 'a' indicates that trigger value > acute toxicity figure; note that trigger value should be <1/3 of acute figure (Section

b = Chemicals for which possible bioaccumulation and secondary poisoning effects should be considered (see Sections and

c = Figure may not prtect key test species from chronic toxicity (this refers to experimental chronic figures or geometric mean for species) - check Section 8.3.7 for spread of data and its significance. Where grey shading and 'c' coincide, refer to text in Section 8.3.7.

d = Ammonia as TOTAL ammonia as [NH3-N] at pH 8. For changes in trigger value with pH refer to Section

e = Chlorine as total chlorine, as [Cl]; see Section

f = Cyanide as un-ionised HCN, measured as [S]; section

g = Sulfide as un-ionised H2S, measured as [S]; see section

h = Chemicals for which algorithms have been provided in table 3.4.3 to account for the effects of hardness. The vales have been calculated using a hardness of 30 mg/L CaCO3. These should be adjusted to the site-specific hardness (see Section 3.4.3).

j = Figures protect against toxicity and do not relate to eutrophication issues. Refer to section 3.3 if eutrophication is the issue of concern.

ID = Insufficient data to derive a reliable trigger value. Users advised to check if a low reliability value or an ECL is given in section 8.3.7.

t = Tainting or flavour impairment of fish flesh may possibly occur at concentrations below the trigger value. See sections and 8.3.7.