JERICHO - Homeowners aren't rolling out the welcome mat for a planned assisted living facility. Bristal Assisted Living wants to build a 140-bed assisted living facility on about 5 acres of land between Routes 106 and 107 and Old Cedar Swamp Road. Developers say the building will replace a few homes and a landscaping business. They insist traffic will be minimal. But residents say traffic is a concern. Officials at Jericho High School, the project's other neighbor, agree. Developers have offered to donate a 50-car parking lot to the school. They have also said they would improve its water and sewer system. Jericho Superintendent Henry Grisham says he isn't sold just yet. "I think there are many questions that we have that really need to be answered," he says.