Water

Shots – Health News : NPR

Wastewater surveillance tracks COVID trends and other pathogens : Shots – Health News : NPR

The best time of day to collect a wastewater sample is in the morning. That's according to Raul Gonzalez, an environmental scientist who's an expert on how people's hygiene habits intersect with the flow of sewage.

Gonzalez runs the wastewater surveillance program at the Hampton Roads Sanitation District, a Virginia Beach, Va., sewage treatment operation that processes waste for 20% of the state's population. He and his team were early adopters of wastewater surveillance – a way of tracking the concentration of viruses, bacteria and infectious diseases in sewage to watch for infectious disease outbreaks.

NY health officials move to expand wastewater monitoring

NY health officials move to expand wastewater monitoring

Public health officials in New York are planning an expansion of infectious disease monitoring in wastewater in order to detect more illnesses that may be otherwise quietly spreading through a community.

The state Department of Health on Monday announced its plan through $21.6 million in funding, including a $6.6 million grant from the U.S. Centers for Disease Control and Prevention.

Under a series of pilot programs, health officials will begin testing for Influenza A, RSV, Hepatitis A, Norovirus, and antimicrobial-resistant genes. The initial monitoring programs will begin in Erie, Onondaga, Jefferson and Westchester counties.

Shots – Health News : NPR

Water utilities can’t remove lead pipes if they can’t find them : Shots – Health News : NPR

Lead levels in drinking water in the northwest Missouri town — population 5,609 — had spiked.

Over the next two years, one-quarter of the homes tested exceeded the Environmental Protection Agency's action level — 15 parts per billion — at least once.

The culprit, city and state officials believe, was the monochloramine. It likely corroded old lead pipes and caused the surge of lead in the drinking water. Because it hadn't detected high levels of lead in years past, Trenton hadn't been required to test for lead at residents' taps since 2014.

Until the city got test results, "we just thought maybe it was kind of like an isolated spot," said Ron Urton, the city administrator and utility director. "And then once we did the test and saw there [were] other elevated places, that's when we started, I think, kind of figuring out what was going on."

The 62 homes Trenton tested during that period have lead pipes, or service lines, running from the water mains, Urton said. But beyond that, very little is known about where lead pipes remain in the system with about 3,000 water meters.

Trenton has managed to get its lead levels back down again by adding a compound that reduces corrosion. But, experts say, the only permanent solution to stop lead from seeping into America's water is to remove the millions of lead pipes that remain 36 years after environmental regulators banned new ones from being installed.

Therein lies the problem.

Trenton — like many other water systems — doesn't know where all of its lead service lines are.

Corrosion control is essential when delivering city water.