That is a good question. But, researchers are checking sewage ( waste water and excrement conveyed in sewers ) for the novel coronavirus (1). And one paper (preprint) reports novel coronavirus was found in sewage (Netherlands) (2).
(2) Preprint Presence of SARS-Coronavirus-2 in sewage
Abstract
In the current COVID-19 pandemic, a significant proportion of cases shed SARS-Coronavirus-2 (SARS-CoV-2) with their faeces. To determine if SARS-CoV-2 is present in sewage during the emergence of COVID-19 in the Netherlands, sewage samples of 7 cities and the airport were tested using RT-PCR against three fragments of the nucleocapsid protein gene (N1-3) and one fragment of the envelope protein gene (E). No SARS-CoV-2 was detected in samples of February 6, three weeks before the first case was reported in the Netherlands on February 27. On March 5, the N1 fragment was detected in sewage of five sites. On March 15/16, the N1 fragment was detected in sewage of six sites, and the N3 and E fragment were detected at 5 and 4 sites respectively. This is the first report of detection of SARS-CoV-2 in sewage. The detection of the virus in sewage, even when the COVID-19 incidence is low, indicates that sewage surveillance could be a sensitive tool to monitor the circulation of the virus in the population.
Harasit Kumar Paul Just found this. From CDC (U.S.) website, it states:
" The virus that causes COVID-19 has not been detected in drinking water. Conventional water treatment methods that use filtration and disinfection, such as those in most municipal drinking water systems, should remove or inactivate the virus that causes COVID-19."
Dear Yuan-Yeu Yau, my concern is a bit different. There are thousands of ponds (a small body of still water formed naturally or by artificial means.) in Bangladesh. People in rural Bangladesh used to have their bath in those ponds. Is it possible to get infected with COVID-19 during bathing when COVID-19 infected patients in their asymptomatic state are using the same ponds for a bath as COVID-19 patients can transmit the disease in the asymptomatic state?
The virus that causes COVID-19 has not been detected in drinking water. Conventional water treatment methods that use filtration and disinfection, such as those in most municipal drinking water systems, should remove or inactivate the virus that causes COVID-19 . Can the virus that causes COVID-19 spread through sewerage systems is under investigation. Regards-
The COVID-19 virus has not been detected in drinking water. Conventional water treatment methods that use filtration and disinfection, such as those in most municipal drinking water systems, should remove or inactivate the virus that causes COVID-19.
Researchers have called for more research to determine the best ways to keep SARS-CoV-19 out of the water cycle. They also suggest that developed nations should finance water treatment systems in the developing world to help prevent future COVID-19 pandemics.
Scientists know that coronaviruses, including the SARS-CoV-19 virus responsible for the COVID-19 pandemic, can remain infectious for days -- or even longer -- in sewage and drinking water.
Recently, the virus that causes COVID-19 has been found in untreated wastewater. While data are limited, there is no information to date that anyone has become sick with COVID-19 because of exposure to wastewater.
Standard practices associated with wastewater treatment plant operations should be sufficient to protect wastewater workers from the virus that causes COVID-19. These standard practices can include engineering and administrative controls, hygiene precautions, specific safe work practices, and personal protective equipment (PPE) normally required when handling untreated wastewater. No additional COVID-19–specific protections are recommended for workers involved in wastewater management, including those at wastewater treatment facilities.
The virus that causes COVID-19 has not been detected in drinking water. Conventional water treatment methods that use filtration and disinfection, such as those in most municipal drinking water systems, should remove or inactivate the virus that causes COVID-19.
please see the abstract and the link of the article below
The advent of severe acute respiratory syndrome and its potential environmental transmission indicates the need for more information on the survival of coronavirus in water and wastewater. The survival of representative coronaviruses, feline infectious peritonitis virus, and human coronavirus 229E was determined in filtered and unfiltered tap water (4 and 23°C) and wastewater (23°C). This was compared to poliovirus 1 under the same test conditions. Inactivation of coronaviruses in the test water was highly dependent on temperature, level of organic matter, and presence of antagonistic bacteria. The time required for the virus titer to decrease 99.9% (T99.9) shows that in tap water, coronaviruses are inactivated faster in water at 23°C (10 days) than in water at 4°C (>100 days). Coronaviruses die off rapidly in wastewater, with T99.9 values of between 2 and 4 days. Poliovirus survived longer than coronaviruses in all test waters, except the 4°C tap water.
Dear DR HK Paul: It looks like the COVID-19 coronavirus may be able to live in water for a few days, potentially even a few weeks. There is a big but, though. And you’ll like this big but. Just because a virus can survive in water doesn’t necessarily mean that it’s present in large enough concentrations to infect you.
The virus that causes COVID-19 has not been detected in treated drinking water. Water treatment plants use filters and disinfectants to remove or kill germs, like the virus that causes COVID-19. The Environmental Protection Agency regulates water treatment plants to ensure that treated water is safe to drink.
Currently, there is no evidence that the virus that causes COVID-19 can be spread to people by drinking treated water. COVID-19 is spread mainly through close contact from person-to-person. You can continue to use and drink water from your tap as usual.
For more details:
Article Coronavirus in water environments: Occurrence, persistence a...
Thanks Ijaz Durrani for your valued contribution. You have shared two important useful links which are highly appreciable. Thanks again for your efforts.
Arvind Singh, thanks for sharing a very important link. This link published a report that SARS-CoV2 survives in water for 25 days. I appreciate your efforts.
"The advent of severe acute respiratory syndrome and its potential environmental transmission indicates the need for more information on the survival of coronavirus in water and wastewater. The survival of representative coronaviruses, feline infectious peritonitis virus, and human coronavirus 229E was determined in filtered and unfiltered tap water (4 and 23°C) and wastewater (23°C). This was compared to poliovirus 1 under the same test conditions. Inactivation of coronaviruses in the test water was highly dependent on temperature, level of organic matter, and presence of antagonistic bacteria. The time required for the virus titer to decrease 99.9% (T99.9) shows that in tap water, coronaviruses are inactivated faster in water at 23°C (10 days) than in water at 4°C (>100 days). Coronaviruses die off rapidly in wastewater, with T99.9 values of between 2 and 4 days. Poliovirus survived longer than coronaviruses in all test waters, except the 4°C tap water."
Article Survival of Coronaviruses in Water and Wastewater