The owner or operator of a landfill must maintain the following items in the operating record required under § 264.73 :
(a)
On a map, the exact location and dimensions, including depth, of each cell with respect to permanently surveyed benchmarks; and
(b)
The contents of each cell and the approximate location of each hazardous waste type within each cell.
Code of Federal Regulations
[47 FR 32365, July 26, 1982, as amended at 50 FR 4514, Jan. 31, 1985]