Introducing the Hillsborough Compost Challenge 2020. Make a difference and take the Hillsborough Compost Challenge by taking a pledge to compost in 2020! Complete the pledge by February 15th, 2020 (2/15/2020) to be eligible to enter the drawing for a free compost bin. This initiative is a Gold Award project done by Nikita Agarwal of Girl Scout Troop of 60364. A pledge goal of 337 Hillsborough households would account for almost 1 ton of waste that would be removed from every 100 tons disposed.