Washington Administrative Code › Title 173 - Ecology, Department of (See also Titles 197, 317, 372, and 508) › Chapter 173-157 - Underground artificial storage and recovery › Part I - INTRODUCTION › Section 173-157-040 - What are the meanings of words and phrases used in this rule?

Current through Register Vol. 24-14, July 15, 2024
"Aquifer storage and recovery project," "ASR
				  project,"
or
"underground artificial storage and recovery
				  project"
means those projects where the intent is to artificially store
				  water in an underground geological formation through injection, surface
				  spreading and infiltration, or other department-approved method, and to make
				  subsequent use of the stored water.
"Artificial recharge"
means either controlled
				  subsurface addition of water directly to the aquifer or controlled application
				  of water to the ground surface for the purpose of replenishing the
				  aquifer.
"Beneficial use"
includes, among others, uses
				  for domestic, stock watering, industrial, commercial, agricultural, irrigation,
				  hydroelectric power production, mining, fish and wildlife maintenance and
				  enhancement, recreational, thermal power production, municipal, and
				  preservation of environmental and aesthetic values.
"Confined aquifer"
means an aquifer where the
				  permeability of the beds above and below the aquifer is significantly lower
				  than the aquifer itself.
"Department"
means the Washington department of
				  ecology.
"DOH"
means the Washington department of
				  health.
"Hydraulic continuity"
means the existence of
				  some degree of interconnection between two or more sources of water, either
				  surface water and groundwater or two groundwater sources.
"Hydrogeology"
means the study of the geologic
				  aspects of subsurface waters.
"Normative flow"
means a flow that resembles the
				  natural flow sufficiently enough to sustain all life stages of several species
				  native to the state of Washington, including salmonid populations.
"Permeability"
means the ability for a fluid to
				  be transmitted in porous rock, sediment, or soil.
"Piezometric elevation"
means the static level
				  to which the water from a given aquifer will rise under its full head.
"RCW"
means the Revised Code of
				  Washington.
"Receiving aquifer"
or
"reservoir"
means any portion of a naturally occurring underground geological formation in
				  which the source water will be collected and stored for a future beneficial use
				  as part of an ASR project.
"Reservoir permit"
means a permit to
				  artificially store water in underground geological formations and subsequently
				  recover it for beneficial use.
"SEPA"
means the State Environmental Policy Act,
				  chapter
				  43.21C RCW.
"Secondary permit"
means a permit for the
				  appropriation of groundwater which was artificially stored in underground
				  geological formations for subsequent beneficial use.
"Source water"
means water that will be stored
				  in a receiving aquifer.
"Stored water"
means water that has been stored
				  in a receiving aquifer pursuant to a reservoir permit issued in accordance with
				  the provisions of this chapter.
"Transmissivity"
is a measure of the rate which
				  water passes through the geologic material within an aquifer.
"UIC"
means the Underground Injection Control
				  program, which was created by the U.S. Environmental Protection Agency pursuant
				  to federal legislation (the Safe Drinking Water Act) and is administered by the
				  department's water quality program.
"Vadose zone"
means within the zone of aeration,
				  i.e., water vapor above the saturation zone within an aquifer.
"WAC"
means Washington Administrative
				  Code.
"WDFW"
means the Washington department of fish
				  and wildlife.
"You"
and
"I"
means any firm,
				  association, water users' association, corporation, irrigation district,
				  municipal corporation, or anyone else that intends to obtain a reservoir permit
				  to develop an underground artificial storage and recovery project pursuant to
				  RCW
				  90.03.370.
Statutory Authority:
					 RCW
					 90.03.370(2)(b) and
					 90.44.460. 03-03-081 (Order
					 02-06), § 173-157-040, filed 1/15/03, effective
					 2/15/03.