Section 327IAC8-2-1. Definitions

   In addition to the definitions contained in IC 13-11-2 and 327 IAC 1, the following definitions apply throughout this rule, 327 IAC 8-2.1, 327 IAC 8-2.3, 327 IAC 8-2.5, and 327 IAC 8-2.6:

(1) "Act" means the Safe Drinking Water Act (42 U.S.C. 300f et seq.).

(2) "Action level" means the concentration of lead or copper in water specified in section 36(c) of this rule that determines, in some cases, the treatment requirements contained in sections 36 through 47 of this rule that a water system is required to complete.

(3) "Adjustment program" means the addition of fluoride to drinking water by a PWS for the prevention of dental cavities.

(4) "Administrator" means the administrator of the U.S. EPA.

(5) "Bag filters" means pressure-driven separation devices that remove particulate matter larger than one (1) micrometer (µm) using an engineered porous filtration media. They are typically constructed of a nonrigid, fabric filtration media housed in a pressure vessel in which the direction of flow is from the inside of the bag to the outside.

(6) "Bank filtration" means a water treatment process that uses a well to recover surface water that has naturally infiltrated into ground water through a river bed or bank. Infiltration is typically enhanced by the hydraulic gradient imposed by a nearby pumping water supply or other well.

(7) "Best available technology" or "BAT" means best technology, treatment techniques, or other means that the commissioner finds are available, after examination for efficacy under field conditions, and not solely under laboratory conditions, and after taking cost into consideration. For the purpose of setting MCLs for synthetic organic chemicals, any BAT must be at least as effective as granular activated carbon.

(8) "Cartridge filters" means pressure-driven separation devices that remove particulate matter larger than one (1) micrometer (µm) using an engineered porous filtration media. They are typically constructed as rigid or semirigid, self-supporting filter elements housed in pressure vessels in which the flow is from the outside of the cartridge to the inside.

(9) "Coagulation" means a process using coagulant chemicals and mixing by which colloidal and suspended materials are destabilized and agglomerated into flocs.

(10) "Combined distribution system" means the interconnected distribution system consisting of the distribution system of wholesale systems and of the consecutive systems that received finished water.

(11) "Commissioner" means the commissioner of the Indiana department of environmental management or the designated agent of the commissioner.

(12) "Community water system" or "CWS" means a PWS that serves at least fifteen (15) service connections used by year-round residents or regularly serves at least twenty-five (25) year-round residents.

(13) "Compliance cycle" means the nine (9) year calendar year cycle during which PWSs must monitor. Each compliance cycle consists of three (3) three-year compliance periods according to the following:

(A) The first calendar year cycle begins January 1, 1993, and ends December 31, 2001.

(B) The second calendar year cycle begins January 1, 2002, and ends December 31, 2010.

(C) The third calendar year cycle begins January 1, 2011, and ends December 31, 2019.

(14) "Compliance period" means a three (3) year calendar year period within a compliance cycle. Each compliance cycle has three (3) three-year compliance periods according to the following:

(A) Within the first compliance cycle, the compliance periods are as follows:

(i) The first compliance period runs from January 1, 1993, to December 31, 1995.

(ii) The second compliance period runs from January 1, 1996, to December 31, 1998.

(iii) The third compliance period runs from January 1, 1999, to December 31, 2001.

(B) Within the second compliance cycle, the compliance periods are as follows:

(i) The first compliance period runs from January 1, 2002, to December 31, 2004.

(ii) The second compliance period runs from January 1, 2005, to December 31, 2007.

(iii) The third compliance period runs from January 1, 2008, to December 31, 2010.

(C) Within the third compliance cycle, the compliance periods are as follows:

(i) The first compliance period runs from January 1, 2011, to December 31, 2013.

(ii) The second compliance period runs from January 1, 2014, to December 31, 2016.

(iii) The third compliance period runs from January 1, 2017, to December 31, 2019.

(15) "Comprehensive performance evaluation" or "CPE" means a thorough review and analysis of a treatment plant's performance-based capabilities and associated administrative, operation, and maintenance practices. It is conducted to identify factors that may be adversely impacting a plant's capability to achieve compliance and emphasizes approaches that can be implemented without significant capital improvements. For purposes of compliance with 327 IAC 8-2.6-1, the CPE must consist of at least the following components:

(A) Assessment of plant performance.

(B) Evaluation of major unit processes.

(C) Identification and prioritization of performance limiting factors.

(D) Assessment of the applicability of comprehensive technical assistance.

(E) Preparation of a CPE report.

(16) "Confluent growth" means a continuous bacterial growth covering the entire filtration area of a membrane filter, or a portion thereof, in which bacterial colonies are not discrete.

(17) "Consecutive system" means a PWS that receives some or all of its finished water from one (1) or more wholesale systems. Delivery can be through a direct connection or through the distribution system of one (1) or more consecutive systems.

(18) "Contaminant" means any:

(A) microorganisms;

(B) chemicals;

(C) waste;

(D) physical substance;

(E) radiological substance; or

(F) wastewater;

introduced or found in the drinking water.

(19) "Conventional filtration treatment" means a series of processes including:

(A) coagulation;

(B) flocculation;

(C) sedimentation; and

(D) filtration;

resulting in substantial particulate removal.

(20) "Corrosion inhibitor" means a substance capable of reducing the corrosivity of water toward metal plumbing materials, especially lead and copper, by forming a protective film on the interior surface of those materials.

(21) "CT" or "CTcalc" means the product of residual disinfectant concentration (C) in milligrams per liter determined before or at the first customer and the corresponding disinfectant contact time (T) in minutes, such as C × T. If a PWS applies disinfectants at more than one (1) point prior to the first customer, the PWS must determine the CT of each disinfectant sequence before or at the first customer to determine the total percent inactivation or total inactivation ratio. In determining the total inactivation ratio, the PWS must determine the residual disinfectant concentration of each disinfection sequence and corresponding contact time before any subsequent disinfection application point. CT_99.9 is the CT value required for ninety-nine and nine-tenths percent (99.9%) (3-log) inactivation of Giardia lamblia cysts. CT_99.9 for a variety of disinfectants and conditions appears in Tables 1.1-1.6, 2.1, and 3.1 of 40 CFR 141.74(b)(3)¹.

 

is the inactivation ratio. The sum of the inactivation ratios or total inactivation ratio shown as:

 

is calculated by adding together the inactivation ratio for each disinfection sequence. A total inactivation ratio equal to or greater than one (1.0) is assumed to provide a 3-log inactivation of Giardia lamblia cysts.

(22) "Diatomaceous earth filtration" means a process resulting in substantial particulate removal in which:

(A) a precoat cake of diatomaceous earth filter media is deposited on a support membrane (septum); and

(B) while the water is filtered by passing through the cake on the septum, additional filter media known as body feed are continuously added to the feed water to maintain the permeability of the filter cake.

(23) "Direct filtration" means a series of processes, including coagulation and filtration but excluding sedimentation resulting in substantial particulate removal.

(24) "Disinfectant" means any oxidant, including, but not limited to:

(A) chlorine;

(B) chlorine dioxide;

(C) chloramines; and

(D) ozone;

added to water in any part of the treatment or distribution process that is intended to kill or inactivate pathogenic microorganisms.

(25) "Disinfectant contact time" or "T in CT calculations" means the time in minutes that it takes for water to move from the point of disinfectant application or the previous point of disinfectant residual measurement to a point before or at the point where residual disinfectant concentration (C) is measured. Where only one (1) C is measured, T is the time in minutes that it takes for water to move from the point of disinfectant application to a point before or at where C is measured. Where more than one (1) C is measured, T is:

(A) for the first measurement of C, the time in minutes that it takes for water to move from the first or only point of disinfectant application to a point before or at the point where the first C is measured; and

(B) for subsequent measurements of C, the time in minutes that it takes for water to move from the previous C measurement point to the C measurement point for which the particular T is being calculated.

Disinfectant contact time in pipelines must be calculated based on plug flow by dividing the internal volume of the pipe by the maximum hourly flow rate through that pipe. Disinfectant contact time within mixing basins and storage reservoirs must be determined by tracer studies or an equivalent demonstration.

(26) "Disinfection" means a process that inactivates pathogenic organisms in water by chemical oxidants or equivalent agents.

(27) "Disinfection profile" means a summary of daily Giardia lamblia inactivation through a treatment plant. The procedure for developing a disinfection profile is contained in:

(A) 327 IAC 8-2.6-2 for systems serving at least ten thousand (10,000) individuals; and

(B) 327 IAC 8-2.6-2.1 for systems serving fewer than ten thousand (10,000) individuals.

(28) "Domestic or other nondistribution system plumbing problem" means a coliform contamination problem in a PWS with more than one (1) service connection that is limited to the specific service connection from which the coliform-positive sample was taken.

(29) "Dose equivalent" means the product of the absorbed dose from ionizing radiation and such factors as account for differences in biological effectiveness due to the type of radiation and its distribution in the body as specified by the International Commission on Radiological Units and Measurements (ICRUM).

(30) "Drinking water violation" means violations of the:

(A) MCL;

(B) treatment technique (TT);

(C) monitoring requirements; and

(D) testing procedures;

in this rule. 327 IAC 8-2.1-16 identifies the tier assignment for each specific violation or situation requiring a public notice.

(31) "Dual sample set" means a set of two (2) samples collected at the same time and at the same location, with one (1) sample analyzed for TTHM and the other sample analyzed for HAA5. Dual sample sets are collected under 327 IAC 8-2.5-10 through 327 IAC 8-2.5-20.

(32) "Effective corrosion inhibitor residual" means a concentration sufficient to form a passivating film on the interior walls of a pipe for the purpose of sections 36 through 47 of this rule only.

(33) "Enhanced coagulation" means the addition of sufficient coagulant for improved removal of disinfection byproduct precursors by conventional filtration treatment.

(34) "Enhanced softening" means the improved removal of disinfection byproduct precursors by precipitative softening.

(35) "Filter profile" means a graphical representation of individual filter performance, based on continuous turbidity measurements or total particle counts versus time for an entire filter run, from startup to backwash inclusively, that includes an assessment of filter performance while another filter is being backwashed.

(36) "Filtration" means a process for removing particulate matter from water by passage through porous media.

(37) "Finished water" means water that is:

(A) introduced into the distribution system of a PWS; and

(B) intended for distribution and consumption without further treatment, except treatment necessary to maintain water quality in the distribution system (for example, booster disinfection or addition of corrosion control chemicals).

(38) "First draw sample" means a one (1) liter sample of tap water collected in accordance with section 37 of this rule that:

(A) has been standing in the plumbing pipes at least six (6) hours; and

(B) is collected without flushing the tap.

(39) "Flocculation" means a process to enhance agglomeration or collection of smaller floc particles into larger, more easily settleable particles through gentle stirring by hydraulic or mechanical means.

(40) "Flowing stream" means a course of running water flowing in a definite channel.

(41) "GAC10" means granular activated carbon filter beds with an empty-bed contact time of ten (10) minutes based on average daily flow and a carbon reactivation frequency of every:

(A) one hundred eighty (180) days; or

(B) one hundred twenty (120) days when the carbon reactivation frequency for GAC10 is used as a BAT for compliance with MCLs under 327 IAC 8-2.5-2(b).

(42) "GAC20" means granular activated carbon filter beds with an empty-bed contact time of twenty (20) minutes based on average daily flow and a carbon reactivation frequency of every two hundred forty (240) days.

(43) "Gross alpha particle activity" means the total radioactivity due to alpha particle emission as inferred from measurements on a dry sample.

(44) "Gross beta particle activity" means the total radioactivity due to beta particle emission as inferred from measurements on a dry sample.

(45) "Ground water under the direct influence of surface water" means any water beneath the surface of the ground with:

(A) significant occurrence of insects or other macroorganisms, algae, or large-diameter pathogens such as Giardia lamblia or, for Subpart H systems serving at least ten thousand (10,000) individuals and beginning January 1, 2005, systems serving fewer than ten thousand (10,000) individuals, Cryptosporidium; or

(B) significant and relatively rapid shifts in water characteristics, such as:

(i) turbidity;

(ii) temperature;

(iii) conductivity; or

(iv) pH;

that closely correlate to climatological or surface water conditions.

Direct influence must be determined for individual sources in accordance with criteria established by the commissioner. The commissioner's determination of direct influence may be based on site-specific measurements of water quality or documentation of well construction characteristics and geology with field evaluation, or both.

(46) "Haloacetic acids (five)" or "HAA5" means the sum of the concentrations in milligrams per liter of the haloacetic acid compounds:

(A) monochloroacetic acid;

(B) dichloroacetic acid;

(C) trichloroacetic acid;

(D) monobromoacetic acid; and

(E) dibromoacetic acid;

rounded to two (2) significant figures after addition.

(47) "Halogen" means one (1) of the following chemical elements:

(A) Chlorine.

(B) Bromine.

(C) Iodine.

(48) "Initial compliance period" means January 1993 to December 1995 for the contaminants listed in the following:

(A) Section 4 of this rule, other than the following:

(i) Arsenic.

(ii) Barium.

(iii) Cadmium.

(iv) Fluoride.

(v) Lead.

(vi) Mercury.

(vii) Selenium.

(viii) Silver.

(B) Section 5 of this rule.

(C) Section 5.4(a) of this rule, other than the following:

(i) Benzene.

(ii) Vinyl chloride.

(iii) Carbon tetrachloride.

(iv) 1,2-dichloroethane.

(v) Trichloroethylene.

(vi) 1,1-dichloroethylene.

(vii) 1,1,1-trichloroethane.

(viii) para-dichlorobenzene.

(49) "Lake/reservoir" means a natural or man-made basin or hollow on the earth's surface in which water collects or is stored that can or cannot have a current or single direction of flow.

(50) "Large water system" means a water system that serves more than fifty thousand (50,000) people for the purpose of sections 36 through 47 of this rule only.

(51) "Lead service line" means a service line made of lead that connects the water main to the building inlet and any:

(A) lead pigtail;

(B) gooseneck; or

(C) other fitting;

that is connected to the lead line.

(52) "Legionella" means a genus of bacteria, some species of which have caused a type of pneumonia called Legionnaires Disease.

(53) "Locational running annual average" or "LRAA" means the average of sample analytical results for samples taken at a particular monitoring location during the previous four (4) calendar quarters.

(54) "Man-made beta particle and photon emitters" means all radionuclides emitting:

(A) beta particle;

(B) photons; or

(C) both clauses (A) and (B);

listed in "Maximum Permissible Body Burdens and Maximum Permissible Concentration of Radionuclides in Air or Water for Occupational Exposure", NBS Handbook 69, as amended August 1973, U.S. Department of Commerce, except the daughter products of thorium-232, uranium-235, and uranium-238.

(55) "Maximum contaminant level" or "MCL" means the maximum permissible level of a contaminant in water that is delivered to the free flowing outlet of the ultimate user of a PWS, except in the case of turbidity where the maximum permissible level is measured at the point of entry to the distribution system. The term does not include contaminants added to the water under circumstances controlled by the user, except those resulting from corrosion of piping and plumbing caused by water quality.

(56) "Maximum contaminant level goal" or "MCLG" means the maximum level of a contaminant in drinking water:

(A) at which no known or anticipated adverse effect on the health of persons would occur; and

(B) that includes an adequate margin of safety.

(57) "Maximum residual disinfectant level" or "MRDL" means a level of a disinfectant added for water treatment that may not be exceeded at the consumer's tap without an unacceptable possibility of adverse health effects.

(58) "Maximum residual disinfectant level goal" or "MRDLG" means the maximum level of a disinfectant added for water treatment:

(A) at which no known or anticipated adverse effect on the health of individuals would occur; and

(B) that allows an adequate margin of safety.

(59) "Maximum total trihalomethane potential" or "MTP" means the maximum concentration of TTHM produced in a given water containing a disinfectant residual after seven (7) days at a temperature of twenty-five (25) degrees Celsius or above.

(60) "Medium size water system" means a water system that serves greater than three thousand three hundred (3,300) and less than or equal to fifty thousand (50,000) persons for the purpose of sections 36 through 47 of this rule only.

(61) "Membrane filtration" means the following:

(A) A pressure or vacuum driven separation process in which:

(i) particulate matter larger than one (1) micrometer (µm) is rejected by an engineered barrier, primarily through a size-exclusion mechanism; and

(ii) a measurable removal efficiency of a target organism can be verified through the application of a direct integrity test.

(B) The term includes the common membrane technologies of:

(i) microfiltration;

(ii) ultrafiltration;

(iii) nanofiltration; and

(iv) reverse osmosis.

(62) "Near the first service connection" means at one (1) of the twenty percent (20%) of all service connections in the entire system that are nearest the water supply treatment facility, as measured by water transport time within the distribution system.

(63) "Noncommunity water system" or "NCWS" means a PWS that:

(A) has at least fifteen (15) service connections used by nonresidents; or

(B) regularly serves twenty-five (25) or more nonresident individuals daily for at least sixty (60) days per year.

(64) "Nontransient noncommunity water system" or "NTNCWS" means a PWS that is not a CWS that regularly serves the same twenty-five (25) or more persons at least six (6) months per year.

(65) "Optimal corrosion control treatment" means the corrosion control treatment that minimizes the lead and copper concentrations at users' taps while ensuring that the treatment does not cause the water system to violate this article for the purpose of sections 36 through 47 of this rule only.

(66) "Performance evaluation sample" or "PE sample" means a reference sample provided to a laboratory for the purpose of demonstrating that the laboratory can successfully analyze the sample within limits of performance specified by the administrator. The true value of the concentration of the reference material is unknown to the laboratory at the time of the analysis.

(67) "Picocuri" or "pCi" means the quantity of radioactive material producing two and twenty-two hundredths (2.22) nuclear transformations per minute.

(68) "Plant intake" means the works or structures at the head of a conduit through which water is diverted from a source, for example, a river or lake, into a treatment plant.

(69) "Point of disinfectant application" means the point where:

(A) the disinfectant is applied; and

(B) water downstream of that point is not subject to recontamination by surface water runoff.

(70) "Point-of-entry treatment device" or "POE" means a treatment device applied to the drinking water entering a house or building for the purpose of reducing contaminants in drinking water distributed throughout the house or building.

(71) "Point-of-use treatment device" or "POU" means a treatment device to a single tap used for the purpose of reducing contaminants in drinking water at that one (1) tap.

(72) "Presedimentation" means a preliminary treatment process used to remove:

(A) gravel;

(B) sand; and

(C) other particulate material;

from the source water through settling before the water enters the primary clarification and filtration processes in a treatment plant.

(73) "Primacy agency" means the department of environmental management where the department exercises primary enforcement responsibility as granted by the EPA.

(74) "Public water system" or "PWS" means a public water supply for the provision to the public of water for human consumption through pipes or other constructed conveyances, if the system has at least fifteen (15) service connections or regularly serves at least twenty-five (25) individuals daily at least sixty (60) days out of the year. The term includes any:

(A) collection, treatment, storage, and distribution facilities under control of the operator of the system and used primarily in connection with the system; and

(B) collection or pretreatment storage facilities not under such control that are used primarily in connection with the system.

A PWS is either a CWS or an NCWS, as defined in subdivisions (12) and (63).

(75) "Rem" means the unit of dose equivalent from ionizing radiation to the total body or any internal organ or organ system. A millirem (mrem) is one-thousandth (1/1,000) of a rem.

(76) "Repeat compliance period" means any subsequent compliance period after the initial compliance period.

(77) "Residual disinfectant concentration"or "C in CT calculations" means the concentration of disinfectant measured in milligrams per liter in a representative sample of water.

(78) "Sanitary survey" means an on-site review of the:

(A) water source;

(B) facilities;

(C) equipment;

(D) operation; and

(E) maintenance;

of a PWS for the purpose of evaluating the adequacy of clauses (A) through (E) for producing and distributing safe drinking water.

(79) "Sedimentation" means a process for removal of solids before filtration by gravity or separation.

(80) "Service interruption" means a disturbance in the provision of water to a customer affecting quality or quantity.

(81) "Service line sample" means a one (1) liter sample of water collected in accordance with section 37(b)(3) of this rule that has been standing at least six (6) hours in a service line.

(82) "Single family structure" means a building constructed as a single family residence that is currently being used as a:

(A) residence; or

(B) place of business;

for the purpose of sections 36 through 47 of this rule only.

(83) "Slow sand filtration" means a process:

(A) involving passage of raw water through a bed of sand at low velocity (generally less than four-tenths (0.4) meter per hour or forty-five (45) to one hundred fifty (150) gallons per day per square foot); and

(B) resulting in substantial particulate removal by physical and biological mechanisms.

(84) "Small water system" means a water system that serves three thousand three hundred (3,300) persons or fewer for the purpose of sections 36 through 47 of this rule only.

(85) "Standard sample" means the aliquot of finished drinking water that is examined for the presence of coliform bacteria.

(86) "Subpart H system" means a PWS using:

(A) surface water; or

(B) ground water under the direct influence of surface water;

as a source that is subject to 327 IAC 8-2.6.

(87) "Supplier of water" means any person who:

(A) owns;

(B) operates; or

(C) both owns and operates;

a PWS.

(88) "Surface water" means all water occurring on the surface of the ground, including water in the following:

(A) A stream.

(B) Natural and artificial lakes.

(C) Ponds.

(D) Swales.

(E) Marshes.

(F) Diffused surface water.

(89) "SUVA" means specific ultraviolet absorption at two hundred fifty-four (254) nanometers, an indicator of the humic content of water. SUVA is a calculated parameter obtained by dividing a sample's ultraviolet absorption at a wavelength of two hundred fifty-four (254) nanometers (UV₂₅₄) (in m^-1) by its concentration of dissolved organic carbon (DOC) (in milligrams per liter).

(90) "System with a single service connection" means a PWS that supplies drinking water to consumers via a single service line.

(91) "Too numerous to count" means that the total number of bacterial colonies exceeds two hundred (200) on a forty-seven (47) millimeter diameter membrane filter used for coliform detection.

(92) "Total organic carbon" or "TOC" means total organic carbon in milligrams per liter, measured using:

(A) heat;

(B) oxygen;

(C) ultraviolet irradiation;

(D) chemical oxidants; or

(E) combinations of these oxidants in clauses (A) through (D);

that convert organic carbon to carbon dioxide, rounded to two (2) significant figures.

(93) "Total trihalomethanes" or "TTHM" means the sum of the concentration in milligrams per liter of the THM compounds:

(A) trichloromethane (chloroform);

(B) dibromochloromethane;

(C) bromodichloromethane; and

(D) tribromomethane (bromoform);

rounded to two (2) significant figures.

(94) "Transient noncommunity water system" or "TWS" means an NCWS that does not regularly serve at least twenty-five (25) of the same persons over six (6) months per year.

(95) "Trihalomethane" or "THM" means one (1) of the family of organic compounds, named as derivatives of methane, wherein three (3) of the four (4) hydrogen atoms in methane are each substituted by a halogen atom in the molecular structure.

(96) "Two-stage lime softening" means a process in which chemical addition and hardness precipitation occur in each of two (2) distinct unit clarification processes in series prior to filtration.

(97) "Uncovered finished water storage facility" means a facility:

(A) such as:

(i) a tank;

(ii) a reservoir; or

(iii) another facility;

open to the atmosphere that is used to store water that will undergo no further treatment to reduce microbial pathogens except residual disinfection; and

(B) that is directly open to the atmosphere.

(98) "Undetectable disinfectant residual" means a disinfectant residual level that is less than:

(A) two-tenths (0.2) milligram per liter measured as free chlorine;

(B) five-tenths (0.5) milligram per liter measured as combined chlorine (chloramines); or

(C) one-tenth (0.1) milligram per liter measured as chlorine dioxide.

The commissioner may require a system to demonstrate the level of chloramines present when measured as combined chlorine under clause (B).

(99) "U.S. EPA" or "EPA" means the United States Environmental Protection Agency.

(100) "Virus" means a virus of fecal origin that is infectious to humans by waterborne transmission.

(101) "Waterborne disease outbreak" means the significant occurrence of acute infectious illness epidemiologically associated with the ingestion of water from a PWS that is deficient in treatment as determined by the commissioner.

(102) "Water loss" means the following:

(A) A calculation based on the difference between the following:

(i) The amount of water produced or purchased.

(ii) The annual volume of water metered, including unmetered water taken by the following:

(AA) Customers authorized to take water.

(BB) The water system.

(CC) Others authorized to take water.

(B) Inclusions of the following:

(i) Unauthorized consumption.

(ii) Metering inaccuracies.

(iii) Data handling errors.

(iv) Leaks, breaks, and overflows on the following:

(AA) Mains.

(BB) Service reservoirs.

(CC) Service connections up to the point of customer metering.

(103) "Wholesale system" means a PWS that:

(A) treats source water as necessary to produce finished water; and

(B) delivers some or all of that finished water to another PWS.

Delivery can be through a direct connection or through the distribution system of one (1) or more consecutive systems.

(Water Pollution Control Division; 327 IAC 8-2-1; filed Sep 24, 1987, 3:00 p.m.: 11 IR 705; filed Dec 28, 1990, 5:10 p.m.: 14 IR 1003; errata filed Jan 9, 1991, 2:30 p.m.: 14 IR 1070; errata filed Aug 6, 1991, 3:45 p.m.: 14 IR 2258; filed Apr 12, 1993, 11:00 a.m.: 16 IR 2151; filed Aug 24, 1994, 8:15 a.m.: 18 IR 19; errata filed Oct 11, 1994, 2:45 p.m.: 18 IR 531; filed Oct 24, 1997, 4:30 p.m.: 21 IR 932; filed Mar 6, 2000, 7:56 a.m.: 23 IR 1623; filed Nov 20, 2001, 10:20 a.m.: 25 IR 1075; filed May 1, 2003, 12:00 p.m.: 26 IR 2808; filed Jun 13, 2005, 2:30 p.m.: 28 IR 3184; filed May 7, 2010, 9:30 a.m.: 20100602-IR-327080198FRA)