Bethel residents have approved water main upgrades. Residents signed off on the $998,000 plan at a Special Town Meeting on Tuesday. Upgrades would be made to water mains on Mansfield Street, Pleasant Street, Grassy Plain Terrace, Highview Terrace and Oakland Heights. If there's room in the budget, water mains on Maple Lane will be replaced as well. Bethel water customers will repay the state Department of Health loan. Bethel officials will apply for a $247,000 grant from the state to offset the cost.