SARS-Cov-2 / COVID-19 Wastewater Surveillance


Wastewater sampling is the most reliable and non-invasive means to achieve early detection of the SARS-CoV-2 virus. SARS-CoV-2 sampling in wastewater allows for early detection of outbreaks. While clinical PCR tests can provide results within approximately seven days after infection, the virus is detectable in the stool within just two days of infection. Symptoms causing the spread typically appear on the fifth day so, while clinical tests are critical in diagnosing the virus, wastewater surveillance is essential in reducing its impact. By sampling for the virus in wastewater, municipalities, universities, and other organizations can predict outbreaks in asymptomatic carriers and take preventative measures to help stop the spread.

At the outbreak of the CoV-2 pandemic, EST’s extensive experience in wastewater sampling and monitoring allowed us to offer superior guidance and solutions to a variety of public sector and private clients throughout the United States.  EST was in a perfect position to mobilize quickly to provide cost-effective and reliable sampling services to public agencies, municipalities, universities, and large private companies seeking to establish a wastewater surveillance programs capable of detecting the virus in a quick, efficient, and non-intrusive manner. The data collected through various wastewater sampling programs was used to determine appropriate quarantine policies and prevent spread of the disease. Since 2020, EST has been contracted to collect thousands of samples across several states including Massachusetts, Rhode Island, Connecticut, New Hampshire, New Jersey, New York, Delaware, Florida, Kentucky, Ohio, and Texas. These sampling programs utilized various methodologies including time/flow-weighted composite sampling, grab sampling, swab sampling, and other proprietary methods. These surveillance programs included short term studies of less than two months and long-term monitoring at sites for over a year in duration.   

EST can develop and implement a comprehensive sampling program including making recommendations for appropriate sampling locations, equipment installation and rentals, sample collection using approved protocols, and equipment maintenance and trouble shooting.

If you are interested in learning more about how EST Associates can assist you with a COVID-19 wastewater sampling program, please contact us today for more information.

Covid-19 Strain

New England Office

124 Crescent Road, Needham, MA 02494

Mid-Atlantic Office

127-G Gaither Drive, Mount Laurel, NJ 08054