Definition(s)
Subsurface Water
“Subsurface water” means ground water and water in the vadose zone that may become ground water or surface water in the reasonably foreseeable future or that vegetation may use.
Source: Oil and Gas, New Mexico Administrative Code Title 19, Chapter 15, January 2013. Regulations
Subsurface Water
Water that flows over or is stored on the ground surface. (GEMI, 2012) .
Source: Identifying and assessing water sources: Guidance document for the onshore oil and gas industry, International Petroleum Industry Environmental Conservation Association (IPIECA), 2014. Global Standards