Section 327IAC8-3.4-1. Definitions

   In addition to the definitions in IC 13-11-2, the following definitions apply throughout this rule:

(1) "Agricultural labor camp" means an area as described in IC 16-41-26-1.

(2) "Annulus" means the space between the:

(A) exterior of a well casing; and

(B) inside diameter of the borehole.

(3) "Bentonite" has the meaning set forth in 312 IAC 13-1-4.

(4) "Bentonite slurry" means a mixture, made according to manufacturer specifications, of water and commercial grouting or plugging bentonite that contains high concentrations of solids. The term does not include sodium bentonite products that:

(A) contain low solid concentration; or

(B) are designed for drilling fluid purposes.

(5) "Community public water supply system", "CPWSS", "community", or "community public water system" means a public water system that:

(A) serves at least fifteen (15) service connections used by year-round residents; or

(B) regularly serves at least twenty-five (25) year-round residents.

(6) "Course grade crushed bentonite" means natural bentonite crushed to an average size range of three-eighths (⅜) to three-fourths (¾) inches.

(7) "Direct additives" means chemical additives that are used in public water systems for the treatment of raw water. Direct additives are also used to protect drinking water during storage and distribution. Examples of direct additives include agents used for the following:

(A) Coagulation and flocculation.

(B) Corrosion and scale control.

(C) Softening.

(D) Sequestering.

(E) Precipitation.

(F) pH adjustment.

(G) Disinfection.

(H) Oxidation.

(8) "Drawdown" means the vertical difference measured between the static and the pumping water levels. The term is commonly expressed in units of length.

(9) "Entry point to the water distribution system" means one (1) of the following points:

(A) For public water systems that utilize water treatment facilities, the point at which the drinking water has:

(i) left the treatment facilities; and

(ii) entered the water distribution system.

(B) For public water systems that do not utilize water treatment facilities, the point at which the water has:

(i) left the supply facilities; and

(ii) entered the water distribution system.

(10) "Flowing well" means a well completed in a confined aquifer where the water rises naturally to an elevation above land surface.

(11) "Indirect additives" means additives that are materials or equipment that come in contact with drinking water or direct additives. Examples of indirect additives include the following:

(A) Pipes, valves, and related products.

(B) Barrier or baffle materials.

(C) Joining and sealing materials.

(D) Protective materials and related products.

(E) Mechanical devices or structures used in:

(i) treatment;

(ii) storage;

(iii) transmission; and

(iv) distribution;

systems.

(12) "Isolation area" means the separation distance of a public water system production well from a potential or existing source of contamination or damage as described in section 9 of this rule.

(13) "Licensed professional geologist" means a person who is licensed as a professional geologist by the Indiana board of licensure for professional geologists under IC 25-17.6.

(14) "Licensed well driller" means a person who is licensed as a well driller under IC 25-39-3.

(15) "Medium grade crushed bentonite" means natural bentonite crushed to an average size range of one-fourth (¼) to three-eighths (⅜) inch.

(16) "Noncommunity public water supply system" or "NCPWSS" means a public water system that serves at least fifteen (15) service connections used by nonresidents or regularly serves twenty-five (25) or more nonresident individuals daily for at least sixty (60) days per year.

(17) "Nontransient noncommunity public water supply system" means a public water system that is not a community water system that regularly serves the same twenty-five (25) or more persons at least six (6) months per year.

(18) "Normal operating pressure" means the water pressure maintained in a system regardless of public service load in the absence of extenuating circumstances.

(19) "Peak daily consumer demand" means the flow rate as determined in 327 IAC 8-3.3.

(20) "Pitless adapter"means a device or assembly of parts that:

(A) will permit water to pass through the wall of the well casing or extension thereof; and

(B) provides access to the well and parts of the water system within the well in a manner to prevent the entrance of contaminants into the well and the water produced.

(21) "Primary pump" means a pump used to deliver drinking water to a water distribution system.

(22) "Production well" or "well" means a well that provides water for human consumption within the applicability of section 2 of this rule.

(23) "Professional engineer" means a person who is registered as a professional engineer by the state board of registration for professional engineers under IC 25-31.

(24) "Pumping test" means a test that is conducted to determine well performance or aquifer characteristics.

(25) "Rated capacity" means the flow rate that a pump is capable of producing at a total dynamic head as determined by the manufacturer of that pump. The term is usually expressed as a unit of volume produced from a well within a unit of time.

(26) "Regulatory flood" has the meaning set forth in 312 IAC 10-2-35.

(27) "Sanitary setback" means an isolation area.

(28) "Schedule 40" refers to the unit of size of standard steel pipe. Standard pipe sizes are designated by the nominal size and schedule number. The schedule numbers are related to the:

(A) permissible operating pressure; and

(B) allowable stress of the steel;

of the pipe. The range of schedule numbers is from ten (10) to one hundred sixty (160) with the higher numbers indicating a heavier wall thickness. Since all schedules of pipe of a given nominal size have the same outside diameter, the higher schedules have a smaller inside diameter.

(29) "Small nontransient noncommunity public water system" means a public water system that:

(A) meets the definition of a nontransient noncommunity public water system under 327 IAC 8-2-1;

(B) serves one hundred (100) or fewer individuals; and

(C) does not utilize surface water or ground water under the influence of surface water as its water source.

(30) "Small transient noncommunity public water system" means a public water system that:

(A) meets the definition of a transient noncommunity public water system under 327 IAC 8-2-1;

(B) serves two hundred fifty (250) or fewer individuals per day; and

(C) does not utilize surface water or ground water under the influence of surface water as its water source.

(31) "Specific capacity" means the rate of discharge of a production well per unit of drawdown. The term is commonly expressed as a unit of volume produced from a well within a unit of time per length or depth of drawdown.

(32) "Static water level" means the level of water (including seasonal fluctuations) in the production well that is not influenced by pumping.

(33) "Test well" means a well that is installed to:

(A) obtain hydrogeological information; or

(B) monitor the quality or quantity of ground water.

(34) "Unconsolidated formations" means geologic materials overlying bedrock, such as sand, gravel, and clay.

(35) "Usable capacity" means the volume of water available in a hydropneumatic or other tank as measured from the pump shut-off pressure to the pump starting pressure.

(36) "Water distribution system" means that part of the public water system in which water is conveyed from the water treatment plant to the premises of the consumer.

(Water Pollution Control Division; 327 IAC 8-3.4-1; filed Jun 17, 1999, 1:50 p.m.: 22 IR 3366; readopted filed Jan 10, 2001, 3:23 p.m.: 24 IR 1518; errata filed Feb 6, 2006, 11:15 a.m.: 29 IR 1937; filed Apr 24, 2006, 3:00 p.m.: 29 IR 2959; readopted filed Nov 21, 2007, 1:16 p.m.: 20071219-IR-327070553BFA; readopted filed Jul 29, 2013, 9:21 a.m.: 20130828-IR-327130176BFA)