Idaho Admin. Code r. 58.01.17.010

Current through September 2, 2024
Section 58.01.17.010 - DEFINITIONS

The terms "department," "person," and "waters" have the meaning provided for those terms in Section 39-103, Idaho Code.

01.Beneficial Use. Uses of the water of Idaho including, but not limited to, domestic water supplies, industrial water supplies, agricultural water supplies, navigation, recreation in and on the water, wildlife habitat, and aesthetics. The beneficial use depends upon actual use, ability of the water to support a non-existing use either now or in the future, and its likelihood of being used in a given manner. The use of water for wastewater dilution or as a receiving water for a waste treatment facility effluent is not a beneficial use.
02.Biochemical Oxygen Demand (BOD). Amount of oxygen necessary to satisfy the biochemical oxidation requirements of the organic materials at the time the sample is collected; unless otherwise specified, this term means the five (5) day BOD (BOD5).
03.Buffer Distances. Specified distance between an actual point of recycled water use and a land feature or resource use, such as wells, adjoining property, inhabited dwellings, or other features.
04.Ground Water Recharge. Process of adding recycled water to the zone of saturation.
05.Industrial Wastewater. All wastewater, treated or untreated, that is not defined as municipal wastewater.
06.Land Application. Process of distributing wastewater or recycled water to the land surface.
07.Landscape Impoundment. Any lake, pond, or other water-holding feature constructed or managed to store recycled water where swimming, wading, boating, fishing, and other water-based recreational activities are prohibited. Landscape impoundment created for storage may incidentally serve a landscaping or aesthetic purpose.
08.Maximum Day Flow. Largest volume of flow received during a 24-hour period expressed as a volume per unit time.
09.Modal Contact Time. Amount of time elapsed between the time a tracer, such as salt or dye, is injected into the influent at the entrance to a chamber and the time the highest concentration of the tracer is observed in the effluent from the chamber.
10.Municipal Wastewater. Wastewater containing sewage and associated solids, whether treated or untreated. Municipal wastewater, also known as domestic wastewater, may contain industrial wastewater.
11.Non-Potable Mains. Pipelines that collect and/or convey non-potable discharges from or to multiple service connections. Examples include sewage collection and interceptor mains, storm sewers, non-potable irrigation mains, and recycled water mains.
12.Non-Potable Services. Pipelines that convey non-potable discharges from individual facilities to a connection with the non-potable main. Term also refers to pipelines that convey non-potable water from a pressurized irrigation system, recycled water system, and other non-potable systems to individual consumers.
13.Non-Potable Water. Any fluids that do not meet the definition of potable water.
14.Nephelometric Turbidity Unit (NTU). Measure of turbidity that compares the intensity of the light scattered by the sample under defined conditions with the intensity of the light scattered by a standard reference suspension under the same conditions.
15.Peak Hour Flow. Largest volume of flow received during a one (1) hour period expressed as a volume per unit time.
16.Plan of Operation. Manual that describes in detail the current operation, maintenance, and management of a reuse facility.
17.Point of Compliance. Point in the reuse facility where the recycled water must meet the requirements of the permit. A permit may require more than one (1) point of compliance within the facility depending on the constituents to be monitored.
18.Potable Water. Water used by humans for drinking, bathing for purposes of personal hygiene (including hand-washing), showering, cooking, dishwashing, and maintaining oral hygiene. In common usage, the terms "culinary water," "drinking water," and "potable water" are frequently used as synonyms.
19.Purple. For the purposes of these rules, purple is specified as Pantone 512, 522, or equivalent.
20.Rapid Infiltration System. Permeable systems designed and operated for high rates of recycled water infiltration followed by rapid percolation using wetting and drying cycles.
21.Recycled Water. Water treated by a wastewater treatment system and used according to these rules.
22.Restricted Public Access. Preventing public entry within the area or a facility's point of reuse and the buffer distance around the area by site location or physical structures such as fencing.
23.Reuse. Use of recycled water or wastewater for beneficial purposes including irrigation, ground water recharge, landscape impoundments, toilet flushing in commercial buildings, dust control, and other uses. Also referred to as Beneficial Reuse.
24.Reuse Facility or Facility. Structure or system designed or used for reuse of municipal or industrial wastewater including, but not limited to, industrial and municipal wastewater treatment facilities, pumping and storage facilities, pipeline and distribution facilities, and the property to which the wastewater or recycled water is used. Does not include industrial in-plant processes and reuse of process waters within the plant.
25.Sewage. Water-carried human wastes from residences, buildings, and industrial establishments and other places, together with ground water infiltration and surface water as may be present.
26.Subsurface Distribution System. System with a point of discharge beneath the earth's surface.
27.Turbidity. Measure of the interference of light passage through water, or visual depth restriction from the presence of suspended matter such as clay, silt, nonliving organic particulates, plankton, and other microscopic organisms. Operationally, turbidity measurements are expressions of certain light-scattering and absorbing properties of a water sample. Turbidity is measured by the nephelometric method.
28.Wastewater. Combination of liquid or water and pollutants from activities and processes occurring in dwellings, commercial buildings, industrial plants, institutions, and other establishments, together with any ground water, surface water, and storm water that may be present; liquid or water that is chemically, biologically, physically or rationally identifiable as containing blackwater, gray water, or commercial or industrial pollutants; and sewage.

Idaho Admin. Code r. 58.01.17.010

Effective April 6, 2023