Mr. Erik Milito - The House Committee on Natural Resources ...

PRACTICES FOR MITIGATING SURFACE IMPACTS ASSOCIATED WITH HYDRAULIC FRACTURING 3
2.20
reclamation
Restoration of a disturbed area to make it acceptable for designated uses. This normally involves regrading,
replacement of topsoil and vegetation, and other work necessary to restore it.
2.21
reservoir
Subsurface hydrocarbon-bearing formation.
2.22
shale gas
Natural gas produced from low-permeability shale formations.
2.23
slickwater
A water-based fluid mixed with friction reducing agents, to reduce friction pressure during hydraulic fracturing
operations.
2.24
solid waste
Any solid, semi‐solid, liquid or contained gaseous material that is intended for disposal.
2.25
stimulation
Any of several processes used to enhance near-wellbore permeability and reservoir permeability, including hydraulic
fracturing.
2.26
tight gas
Natural gas trapped in a hard rock, sandstone or limestone formation that is relatively impermeable.
2.27
total dissolved solids
TDS
<strong>The</strong> dry weight of dissolved elements, organic and inorganic, contained in water and usually expressed in parts per
million.
2.28
underground source of drinking water
USDW
Defined in 40 CFR Section 144.3, as follows:
“An aquifer or its portion:
(a) (1) Which supplies any public water system; or
(2) Which contains a sufficient quantity of groundwater to supply a public water system;
and
(i) Currently supplies drinking water for human consumption; or
(ii) Contains fewer than 10,000 mg/l total dissolved solids; and
(iii) Which is not an exempted aquifer.”