As of Sunday morning, Lambton Public Health had rescinded its advisory for the beach at Pinery Provincial Park.
It issued the advisory on Friday after detecting high levels of E.Coli bacteria, making the Lake Huron beach unsafe to swim.
Earlier in the day, all Lake Huron beaches the health unit tested the water quality at had been cleared for swimming.
Lambton Public Health regularly tests waters at Grand Bend [North and South beaches], Bright's Grove [including Mike Weir Park], Canatara, C. J. McEwan, Pinery Provincial Park and Ipperwash Main Beach. While no sampling occurs along the St. Clair River, caution signs advising high bacterial levels following heavy rainfall are permanently posted at Branton Cundick Park, Brander Park and Seager Park.
The health unit didn't have any advisories for those beaches on Sunday.
Lambton County beachgoers can access water quality status through text messaging or by calling the beach info line posted at www.LambtonPublicHealth.ca.