The City of Hamilton is asking the Ontario government to extend the deadline to clean up the sewage in Chedoke Creek by a year — to Dec. 31, 2023 — because of demonstrations from representatives of the Haudenosaunee Development Institute (HDI). It's also asking the Ministry of the Environment, Conservation and Parks to issue an order to HDI to prevent the group from causing any further disruptions as it tries to meet ministry orders to clean up the 24-billion-litre sewage spill, a leak that took place over four years.