Panera Bread of Massapequa has announced that in celebration of National Lemonade Day on August 20, the café will donate 100 percent of the proceeds from its Lemonade sales to Alex’s Lemonade Stand Foundation, a non-profit organization dedicated to eradicating childhood cancer. This includes Lemonade sales at 36 participating locations owned by Doherty Enterprises on Long Island, Brooklyn, Queens and Staten Island. (Excludes Frozen Lemonade)