I'm a fan of mixed use. Mixed use is the practice of allowing different types of buildings to coexist in a single neighborhood - for example, residential space next to/on top of restaurants and businesses. By adding vitality and activity to a neighborhood, mixed use benefits a community because residents are able to walk to things that they need, like stores, work, church and transit. But there are certain land uses that are best kept away from the rest of the neighborhood - gas stations among them. In Montclair, two former gas station sites continue to undergo remediation for chemical contamination twenty years after they were first tested. Both of the locations, in Upper Montclair on Valley Road and on Orange Road in the South End are near houses, condominiums and small businesses. Who needs to walk to a gas station anyway?