Flea infestation closes popular North Bay playground, town's pesticide ban forces non-toxic cleanupFairfax's Peri Park Playground is closed after fleas were found in sand and wood chips, prompting safety concerns from families. Fairfax's Peri Park Playground is closed after fleas were found in sand and wood chips, prompting safety concerns from families. Fairfax's Peri Park Playground is closed after fleas were found in sand and wood chips, prompting safety concerns from families. Fairfax's Peri Park Playground is closed after fleas were found in sand and wood chips, prompting safety concerns from families. If the treatment is successful, Fairfax officials say Peri Park Playground could reopen as early as Aug. 7.