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You can find the current article at its original source at https://www.theguardian.com/environment/2022/nov/08/melbourne-residents-warned-not-to-swim-at-beaches-as-floods-contaminate-waterways
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| Melbourne residents warned not to swim at beaches as floods contaminate waterways | Melbourne residents warned not to swim at beaches as floods contaminate waterways |
| (7 months later) | |
| Microbes have made their way into water after heavy rain, raising risk of illnesses like gastro and diarrhoea, authorities say | Microbes have made their way into water after heavy rain, raising risk of illnesses like gastro and diarrhoea, authorities say |
| Melbourne residents are being urged to hit the swimming pool instead of the beach as Victoria’s ongoing floods continue to contaminate waterways. | Melbourne residents are being urged to hit the swimming pool instead of the beach as Victoria’s ongoing floods continue to contaminate waterways. |
| Victoria’s chief environmental scientist, Mark Taylor, said microbes had made their way into waterways after heavy rains, bringing the risk of pollution, mosquitoes and water-borne diseases. | Victoria’s chief environmental scientist, Mark Taylor, said microbes had made their way into waterways after heavy rains, bringing the risk of pollution, mosquitoes and water-borne diseases. |
| To investigate the risks of pathogens and sewerage levels in the water after widespread and ongoing flooding, the Environment Protection Authority has launched a “high quality” sample analysis program at 19 Victorian sites, including nine waterways. | To investigate the risks of pathogens and sewerage levels in the water after widespread and ongoing flooding, the Environment Protection Authority has launched a “high quality” sample analysis program at 19 Victorian sites, including nine waterways. |
| Taylor said it was the “single most comprehensive” assessment of water quality and the pathogen E coli that had been undertaken in Australia’s history. | Taylor said it was the “single most comprehensive” assessment of water quality and the pathogen E coli that had been undertaken in Australia’s history. |
| “When the whole land is inundated, it will inundate, release and mobilise sewage, which is why we’re measuring for E coli,” he said. | “When the whole land is inundated, it will inundate, release and mobilise sewage, which is why we’re measuring for E coli,” he said. |
| The bacteria, which normally lives in the intestines of humans and animals, can cause faecal contamination in water which can lead to severe stomach cramps, diarrhoea and vomiting. | The bacteria, which normally lives in the intestines of humans and animals, can cause faecal contamination in water which can lead to severe stomach cramps, diarrhoea and vomiting. |
| The water samples, collected by the State Emergency Service, showed the presence of faecal matter in all waters at generally low levels. | The water samples, collected by the State Emergency Service, showed the presence of faecal matter in all waters at generally low levels. |
| Only the water tested at Shepparton showed very high levels of the faecal bacteria. The Goulburn River tested at 2,000 Most Probable Number per 100 ml, compared with the guideline of 550. | Only the water tested at Shepparton showed very high levels of the faecal bacteria. The Goulburn River tested at 2,000 Most Probable Number per 100 ml, compared with the guideline of 550. |
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| As heavy rainfall and widespread flooding throughout October stirred up sediments and contaminated water systems, the EPA issued an alert warning that no beaches around Port Phillip Bay were considered suitable for swimming. | As heavy rainfall and widespread flooding throughout October stirred up sediments and contaminated water systems, the EPA issued an alert warning that no beaches around Port Phillip Bay were considered suitable for swimming. |
| The EPA advises against swimming at all waterways and beaches 48 hours after heavy rain, and “much longer” in the event of floods due to the risk of illnesses like gastro and diarrhoea. | The EPA advises against swimming at all waterways and beaches 48 hours after heavy rain, and “much longer” in the event of floods due to the risk of illnesses like gastro and diarrhoea. |
| Eleven beaches were rated “poor”, including the popular St Kilda beach and Elwood, while a further 25 sites had been issued with an alert for possible stormwater pollution. The warnings were likely to be in place for at least a week. | Eleven beaches were rated “poor”, including the popular St Kilda beach and Elwood, while a further 25 sites had been issued with an alert for possible stormwater pollution. The warnings were likely to be in place for at least a week. |
| Poor water quality and stormwater pollution had also been detected along the Yarra River at Launching Place, Healesville, Warrandyte and Kew. | Poor water quality and stormwater pollution had also been detected along the Yarra River at Launching Place, Healesville, Warrandyte and Kew. |
| Beach Report and Yarra Watch: 11 beaches are rated Poor and 25 beaches are rated Fair. All Four Yarra Watch locations are rated Poor. For more information go to https://t.co/PevzvhHpbl pic.twitter.com/H8AhdbT1nz | Beach Report and Yarra Watch: 11 beaches are rated Poor and 25 beaches are rated Fair. All Four Yarra Watch locations are rated Poor. For more information go to https://t.co/PevzvhHpbl pic.twitter.com/H8AhdbT1nz |
| Taylor said despite the sunshine, finding “alternative solutions” to cool off and keeping pets out of the water was important until rainfall eased. | Taylor said despite the sunshine, finding “alternative solutions” to cool off and keeping pets out of the water was important until rainfall eased. |
| “The water quality is not tip top, we’re encouraging people to stay out until we really see it as clean and presenting as suitable to swim in,” he said. | “The water quality is not tip top, we’re encouraging people to stay out until we really see it as clean and presenting as suitable to swim in,” he said. |
| “The Yarra River is understandably still poor, and it will be until later on into the summer as the effects of floods dissipate. | “The Yarra River is understandably still poor, and it will be until later on into the summer as the effects of floods dissipate. |
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| “[But] I would anticipate if good weather continues we’ll see improvements … as we reach school holidays … beaches will reach suitable levels.” | “[But] I would anticipate if good weather continues we’ll see improvements … as we reach school holidays … beaches will reach suitable levels.” |
| The popular Mornington Peninsula beach spots Blairgowrie, Rye, Rosebud, Dromana, Safety Beach, Mount Martha, Mornington and Canadian Bay were all under alerts for possible pollution, as were parts of Frankston, Kingston, Bayside, Port Phillip, Hobson Bay, Wyndham, Greater Geelong and Queenscliffe. | The popular Mornington Peninsula beach spots Blairgowrie, Rye, Rosebud, Dromana, Safety Beach, Mount Martha, Mornington and Canadian Bay were all under alerts for possible pollution, as were parts of Frankston, Kingston, Bayside, Port Phillip, Hobson Bay, Wyndham, Greater Geelong and Queenscliffe. |
| Taylor said discoloured water and foam were obvious signs of pollution, as were algae blooms and bubbles which could act as an irritant, particularly for people with asthma. | Taylor said discoloured water and foam were obvious signs of pollution, as were algae blooms and bubbles which could act as an irritant, particularly for people with asthma. |
| “Upstream pollution gets flushed downstream, settles in the bay and takes time to dissipate,” he said. | “Upstream pollution gets flushed downstream, settles in the bay and takes time to dissipate,” he said. |
| “Catchments in Melbourne are highly urbanised, there’s lots of septic systems and animals which contaminate waterways with pathogens. | “Catchments in Melbourne are highly urbanised, there’s lots of septic systems and animals which contaminate waterways with pathogens. |
| “Treat flood waters with respect, it’s not suitable for swimming [or] fishing. Let nature take its course, on the Murray in particular it will be a long, drawn-out process. It’s not expected to peak at Mildura until early December. It’s not a flash in the pan.” | “Treat flood waters with respect, it’s not suitable for swimming [or] fishing. Let nature take its course, on the Murray in particular it will be a long, drawn-out process. It’s not expected to peak at Mildura until early December. It’s not a flash in the pan.” |
| Flood-worn residents in Victoria’s north have little reprieve in sight as the Murray slowly rises downstream of Wakool Junction. | Flood-worn residents in Victoria’s north have little reprieve in sight as the Murray slowly rises downstream of Wakool Junction. |
| The Bureau of Meteorology recorded rainfall totals of up to 100mm across much of the Murray-Darling Basin in the past week, while at Kenley near Swan Hill, residents were urged to evacuate on Monday afternoon amid major flooding. | The Bureau of Meteorology recorded rainfall totals of up to 100mm across much of the Murray-Darling Basin in the past week, while at Kenley near Swan Hill, residents were urged to evacuate on Monday afternoon amid major flooding. |
| Echuca residents remained unable to return to their homes two weeks after the river peaked. | Echuca residents remained unable to return to their homes two weeks after the river peaked. |
| There were 34 emergency warnings across the state and more than a dozen catchments with active flood warnings, including a moderate flood warning for the Yarra River. | There were 34 emergency warnings across the state and more than a dozen catchments with active flood warnings, including a moderate flood warning for the Yarra River. |