Iowa Administrative Code › Agency 567 - Environmental Protection Commission › Title II - Air Quality › Division C › Chapter 55 - Aquifer Storage and Recovery: Criteria and Conditions for Authorizing Storage, Recovery, and Use of Water › Rule 567-55.4 - Definitions

Current through Register Vol. 47, No. 3, July 24, 2024
The following definitions shall apply to this
					 chapter:
"Aquifer storage and recovery (ASR) "
means the injection and storage of treated water in an aquifer through a
					 permitted well during times when treated water is available and withdrawal of
					 the treated water from the same aquifer through the same well during times when
					 treated water is needed.
"Contiguous "
means directly adjacent or
					 touching along all or part of one side of a legally defined piece of property.
					 Tracts of land involved in the same water supply and separated only by
					 separators such as roads, railroads, or bike trails are deemed contiguous
					 tracts.
"Displacement zone "
means the
					 three-dimensional area of dispersion into which treated water is injected for
					 storage, subject to later recovery.
"Drawdown "
means the decrease in water
					 level at a pumping well due to the action of the pump.
"Limited registration "
means a one-year
					 written authorization for a nonrecurring use of water for the purpose of
					 forecasting and testing the ASR well system, to include cyclic test pumping as
					 necessary.
"Mechanical integrity "
means any
					 structural or material defect in the ASR well or well casing or appurtenances
					 which will prevent or materially impair the injection or pumping of water (to
					 and from) within an aquifer or contribute to aquifer contamination or
					 impairment.
"Permit"
means a written authorization
					 issued to a permittee by the department for the storage of treated water in an
					 existing aquifer or the subsequent withdrawal of treated water from an existing
					 aquifer. The permit specifies the quantity, duration, location, and
					 instantaneous rate of this storage or withdrawal.
"Permittee "
means a water supply system
					 which obtains a permit from the department authorizing the injection of and
					 possession by storage of treated water in an aquifer, withdrawal of this water
					 at a later date, and the actual beneficial use of the water.
"Receiving aquifer"
means the aquifer into
					 which treated water is injected under terms of an ASR permit.
"Recovered water "
means water which is
					 recovered from storage within the displacement zone under terms of an ASR
					 permit.
"Stored water"
means injected treated
					 potable water which is stored in a receiving aquifer within the displacement
					 zone under terms of an ASR permit.
"Treated water "
for the purposes of this
					 chapter means water which has been physically, chemically, or biologically
					 treated to meet national primary and secondary drinking water standards and is
					 fit for human consumption as defined in 567-Chapters 40 to 43, Iowa
					 Administrative Code.
"Zone of influence "
means a circular area
					 surrounding a pumping water well where the water table has been measurably
					 lowered due to the action of the pump.