New lead testing results at Vista Unified School District schools show that a faucet, used for food preparation at one elementary school, has tested positive for lead. The faucet, located at Grapevine Elementary School in Vista, at 630 Grapevine Road, is located in the kitchen. Of the 29 schools tested in the school district, 22 schools passed the lead test. Tests at six schools are still pending. The district is taking advantage of a state program to pay for the testing at its schools.