36 C.F.R. § 9.45 Handling of wastes.
Title 36 - Parks, Forests, and Public Property
Oilfield brine, and all other waste and contaminating substances must be kept in the smallest practicable area, must be confined so as to prevent escape as a result of percolation, rain, high water or other causes, and such wastes must be stored and disposed of or removed from the area as quickly as practicable in such a manner as to prevent contamination, pollution, damage or injury to the lands, water (surface and subsurface), facilities, cultural resources, wildlife, and vegetation of or visitors of the unit.
Title 36: Parks, Forests, and Public Property
PART 9—MINERALS MANAGEMENT
Subpart B—Non-Federal Oil and Gas Rights
§ 9.45 Handling of wastes.

