Lake country is full of second lives. A 1950s farmhouse outside Madison becomes a weekend place, a Sinclair fishing cabin from the lake's early years becomes a full-time home, a crossroads store on a county highway becomes a shop. Each of those can come with a buried tank nobody has thought about since the furnace was swapped out.
The lake raises the stakes. Petroleum that reaches a ditch or a feeder creek is headed for state waters, and Georgia's definition of state waters includes lakes, reservoirs, streams and drainage systems. On Lake Oconee, Georgia Power also restricts digging and contour changes inside its project boundary and the 25-foot buffer, so a tank close to the shoreline needs that line located before a machine goes near it.
The other tank people find is an old septic tank left behind when a house tied into Piedmont Water, EPWSA or city sewer. Georgia's rule is short: once a tank is out of use, the owner has it pumped by a certified pumper and filled with sand, soil or rock so nobody falls in, or has it removed.