Peninsula Health District officials issued swimming advisories Wednesday for Hilton Beach in Newport News and Yorktown Beach in York County after water tests showed elevated bacteria levels in the water.
Bacteria levels at both beaches exceed the state water quality standards.
Signs have been posted at the beaches alerting the public of the advisory, the department said.
Throughout the summer season, the health department monitors recreational waters for various “indicator organisms,” including enterococci, a group of organisms that determine the amount of fecal contamination in the water.
Enterococci do not cause illness, but scientific studies suggest their presence in water is closely correlated to the presence of other disease-causing organisms.
Those who swim in contaminated was may be at risk of gastrointestinal illness, the health department said.
“We encourage the public to protect their health by complying with this advisory,” said Dr. S. William Berg, the director for the Peninsula Health District. “Typically, an advisory of this nature is temporary and will be withdrawn once the bacteria levels have returned to a safe level.”
More samples were collected by health officials Wednesday. Results should be available Thursday.