WILLIAMSTOWN -- For the second time this summer, Margaret Lindley Park has been closed to swimmers.
On Wednesday, town officials announced the popular destination for families had become cloudy from excessive rain.
"There's a lot of young children that come here, and we want to keep them safe," Health Agent Jeffrey Kennedy said.
Kennedy said an instrument known as a secchi disk, a six-inch circle lowered into the water, is used to measure water clarity. The standard for safe swimming states the instrument, which has a white and black background, be visible to a depth of at least four feet, he said.
During a test conducted Wednesday, Kennedy said he was unable to see the instrument at a depth of one foot.
"It's just silt from the streams," he said. "It's a really fine silt that's suspended in the water."
Water that's cloudy poses a hazard, Kennedy explained, and state standards specify the water must be clear.
The park was previously closed between July 3 to 12 after a heavy rainstorm stirred up nearby streams and the pond bottom.
The Department of Public Works did an "admirable" job in cleaning the pond the first time it closed, Kennedy said.
Kennedy was unable to say when the park would reopen, but said he and Inspection Services would monitor the situation daily.
The pond draws in people from Massachusetts, Vermont and New York, he added.