Is the coronavirus present in tap water? The Ministry of Agriculture and Forestry has issued an important statement. In response to questions about whether coronavirus can be found in tap water, the General Directorate of Water Management prepared and presented a report. According to that report, virus fragments were detected surviving for up to 10 days in tap water and up to 100 days in wastewater under certain conditions.
The report from the General Directorate of Water Management includes notable information about risks related to drinking water, wastewater, and sewer systems. It states that of 603 wastewater treatment plants across the country, only 53 have disinfection units. Among 221 facilities that are actively used for irrigation, only 42 have disinfection units, and of those 42 units just 13 were reported as operational at the time of the survey.
The Virus Is Vulnerable to Chlorine
According to the prepared report, there is no confirmed evidence that COVID-19 is transmitted to humans through drinking water or wastewater. The report emphasizes that coronavirus particles can remain in fragmented form in tap water for up to 10 days and in wastewater for up to 100 days under some conditions. However, coronaviruses and similar viruses are highly susceptible to chlorine disinfection. For effective disinfection, a contact time of 30 minutes with a residual free chlorine concentration of at least 0.5 mg/L is considered sufficient. The report also stresses the importance of ensuring residual chlorine is maintained throughout transmission and distribution networks.
These findings underline the need for adequate disinfection infrastructure and regular monitoring of water treatment and distribution systems. Ensuring functioning disinfection units at wastewater and irrigation facilities, and maintaining minimum residual chlorine levels in distribution lines, are key preventive measures to minimize any potential risk associated with viral contamination.
The ministry’s analysis highlights gaps in current disinfection coverage and operational status of units in both wastewater treatment and irrigation facilities, calling for prioritization of upgrades, maintenance, and monitoring to protect public health. While no direct transmission via tap water has been proven, maintaining robust water treatment practices and chlorine residuals remains an important part of a comprehensive public health strategy.