The city has decided to throw in the towel on an unworked mineral claim that was once kept to insure mining did not disturb city infrastructure. The rights to the mineral claim for the lands around the slag pile and the East Zone Reservoir will now lapse after city council voted to not renew the mineral claim. Instead, the city will now investigate options for dedicating a park on the lands around the East Zone Reservoir. Although there might be some risk in letting the claim go, the city will now save a minimum of $170,000 over the next 20 years by dropping its rights. The city had been spending around $7,000 to per year to keep the claim — costing around $30 per hectare — a figure which was expected to rise to $9,300 by 2020 (to $40 per hectare). The city acquired mineral claims covering the lands around the slag pile and the East Zone Reservoir in 2007. These claims were being held for the purpose of ensuring there were no competing uses of the lands that would be detrimental to the quarry operations.