Mich. Admin. Code R. 323.2201

Current through Vol. 24-18, October 15, 2024
Section R. 323.2201 - Purpose; scope

Rule 2201. As used in these rules:

(a) "Act" means Act No. 451 of the Public Acts of 1994, as amended, being section 324.101 et. seq. of the Michigan Compiled Laws, and known as the natural resources and environmental protection act.
(b) "Additive" means a substance added to water to enhance its effectiveness for uses such as, but not limited to, cleaning, disinfecting, heating, and cooling. A substance may be added to water directly or indirectly by being added to a process in such a way that it becomes a constituent of the wastewater.
(c) "Aquifier" means a geological formation, group of formations, or part of a formation capable of yielding significant quantities of groundwater to wells or springs.
(d) "Background groundwater quality" means the concentration or level of a substance in groundwater within an aquifer and hydraulically connected aquifers at the site receiving a discharge, if the aquifer has not been impacted by a discharge caused by human activity.
(e) "Cluster well" means a grouping of more than 1 well at a single location where the screen for each well in the group is set either at a different depth within the same aquifer or set in different aquifers separated by a confining or semi-confining layer.
(f) "Controlled application" means the noninjurious application of a substance for its intended purpose in accordance with the manufacturer's recommendations or normally accepted or regulated practices.
(g) "Department" means the department of environmental quality or a local health department that has been certified to exercise the pertinent authority under R 323.2209.
(h) "Designated wellhead protection area" means a specific geographic area which is approved by the department as the surface and subsurface area surronding a water well or well field that supplies a public water system and through which contaminants are reasonably likely to move toward and reach the water well or well field.
(i) "Discharge" means any direct or indirect discharge of any of the following into the groundwater or on the ground:
(i) Waste.
(ii) Waste effluent.
(iii) Wastewater.
(iv) Pollutant.
(v) Cooling Water.
(vi) A combination of the items specified in paragraphs (i) to (v) of this subdivision.
(j) "Discharger' means a person who directly or indirectly discharges any of the following into the groundwater or on the ground:
(i) Waste.
(ii) Waste Effluent.
(iii) Wastewater.
(iv) Pollutant.
(v) Cooling water.
(vi) A combination of the itmes specified in paragraphs (i) to (v) of this subdivision.

For a treatment facility that has been or is being closed, the discharger is the person who formerly discharged at the site while using the facility or is the owner of the facility, or both.

(k) "Domestic activity" means an activity which normally takes place as a result of occupying a household, but which does not include a commercial or industrial activity conducted in a household.
(l) "Domestic equivalent activity" means an activity at a commercial, municipal, or industrial facility, such as lawn watering, that is comparable to a domestic activity.
(m) "Effluent" means waste or wastewater during or subsequent to treatment but before discharge.
(n) "Existing groundwater quality" means the concentration or level of a substance in groundwater within an aquifer and hydraulically connected aquifers at the site receiving the discharge whether or not it is impacted by human activity. A discharge or release by the applicant or a predecessor in interest of the applicant cannot be considered in determining existing groundwater quality.
(o) "General purpose floor drain" means a point source, such as a pipe, conduit, or other conveyance, that originates in a structure and discharges, or is capable of discharging, a release defined by part 201 or waste or wastewater not authorized under these rules eigher directly or indirectly to the ground or groundwater.
(p) "Groundwater" means water below the land surface in a zone of saturation.
(q) "Hydrogeological report" means a document presenting and interpreting field information or published hydrogeologic information, or both, gathered at a location for the purpose of describing the existing hydrogeologic conditions and predicting the potential impact on waters of the state from a discharge at the location.
(r) "Influent" means the wastewater received by or generated at a facility before treatment.
(s) "Injurious" means any damage to or change in the condition of background groundwater quality that causes or may cause groundwater to no longer be fit for 1 or more protected uses.
(t) "Local health department" means a county, district, or city health department.

Mich. Admin. Code R. 323.2201

1980 AACS; 1998-2000 AACS