Wisconsin Administrative Code › Department of Natural Resources › NR 100-199 - Environmental Protection General › Chapter NR 140 - Groundwater Quality › Subchapter I - General › Section NR 140.05 - Definitions

Current through June 24, 2024
(1)  "Accuracy" means the closeness of a
				  measured value to its generally accepted value or its value based upon an
				  accepted reference standard.
(1m)
				  "Alternative concentration limit" means the concentration of a substance in
				  groundwater established by the department for a site to replace a preventive
				  action limit or enforcement standard or both, from Table 1 or 2, when an
				  exemption is granted in accordance with s.
				  NR
				  140.28.
(1s) "Approval" means written acceptance by
				  the department of a plan, report or other document that has been submitted to
				  the department for review.
(1u)
				  "Aquifer storage recovery" or "ASR" means placement of treated drinking water
				  underground through a well for the purpose of storing and later recovering the
				  water through the same well for potable use.
Note:
Underground placement of water for the
					 purpose of restoring an aquifer is not included in the definition of "aquifer
					 storage recovery" or "ASR".
(1w) "ASR displacement zone" means the
				  3-dimensional subsurface region surrounding an aquifer storage recovery well
				  into which treated drinking water is placed for storage and later
				  recovery.
(1y) "ASR system" means
				  all of the ASR wells, ASR monitoring wells and related appurtenances within a
				  municipal well system and any interconnected public water system served by the
				  municipal water system.
(2) "Attain
				  or exceed" means that the concentration of a substance is determined to be
				  equal to or greater than the preventive action limit or enforcement standard
				  for that substance.
(3) "Background
				  water quality" or "background concentration" means groundwater quality at or
				  near a facility, practice or activity which has not been affected by that
				  facility, practice or activity.
(4)
				  "Certified laboratory" means a laboratory which performs tests for hire in
				  connection with a covered program and which receives certification under s.
				  299.11(7),
				  Stats., or receives reciprocal recognition under s.
				  299.11(5),
				  Stats.
(5) "Department" means the
				  department of natural resources.
(6) "Design management zone" means a
				  3-dimensional boundary surrounding each regulated facility, practice or
				  activity established under s.
				  NR
				  140.22(3).
(7) "Enforcement standard" means a numerical
				  value expressing the concentration of a substance in groundwater which is
				  adopted under s.
				  160.07,
				  Stats., and s.
				  NR
				  140.10 or s.
				  160.09,
				  Stats., and s.
				  NR
				  140.12.
(8) "Facility, practice or activity" means
				  any source or potential source of a substance which is detected in or has a
				  reasonable probability of entering the groundwater resources of the
				  state.
(9) "Groundwater" means any
				  of the waters of the state, as defined in s.
				  281.01(18),
				  Stats., occurring in a saturated subsurface geological formation of rock or
				  soil.
(10) "Indicator parameter"
				  means a substance for which a preventive action limit has been established
				  under s.
				  NR
				  140.20, which is used to indicate the potential for a
				  preventive action limit established under s.
				  NR
				  140.10 or 140.12 to be attained or exceeded and for
				  which an enforcement standard has not been established under s.
				  NR
				  140.10 or 140.12.
(10e) "Infiltration" means the underground
				  emplacement of substances or remedial material, or both, into an excavation
				  that is wider than deep so as to percolate or move through unsaturated material
				  to groundwater.
(10s) "Injection"
				  means the underground emplacement of substances or remedial material, or both,
				  into a borehole or other excavation that is deeper than wide so as to percolate
				  or move through unsaturated material to groundwater or to enter ground-water
				  directly.
(11) "Land disposal
				  system" means a facility for disposing of liquid wastes consisting of:
(a) An absorption or seepage pond
				  system,
(b) A ridge and furrow
				  system;
(c) A spray irrigation
				  system,
(d) An overland flow
				  system,
(e) A subsurface field
				  absorption system,
(f) A land
				  spreading system, or
(g) Any other
				  land area receiving liquid waste discharges.