Sec. 8. INSPECTION OF VARIOUS UTILITY DISTRICTS WITHIN COUNTY; MAP. The county engineer when directed by the commissioners court shall make such inspections of any and all utility districts, water districts, sewage districts, and any other type district formed within the confines of the county, to ascertain whether or not said districts meet the state and county requirements. The county engineer will keep a map setting out each and every type district created within the county and make it available for public use at any and all times required to do so.