Some locals are also concerned with drinking water, after unsafe levels of lead were detected. Children deemed most at risk for lead exposure, such as those enrolled in Medicaid or living in older housing. A long history of heavy industry in the East Bay also left contaminated soil in some areas. Lead exposure is common in other East Bay areas. Meanwhile, elevated exposure levels were also found to be a problem in larger neighborhoods surroundings. an ordinance to require proof that contractors will adhere to Environmental Protection Agency standards – including safe lead paint removal practices – before they renovate older housing.