A recent $90,000 renovation project has boosted accessibility at the Lambton County Developmental Services office in Petrolia. A $90,000 renovation project has boosted accessibility at the Lambton County Developmental Services administration building in Petrolia. With about $60,300 from a federal Enabling Accessibility Fund, a ramp was built between two sections of the building and three washrooms are now accessible. “But we found, in particular, our washrooms here just weren’t meeting the accessibility requirements,” Salaris said. The site also includes a section at the back that wasn’t easily accessible from the administration section.