R 325.10105 Definitions; F to L.

Rule 105. As used in these rules:

(a) "Federal act" means the safe drinking water act of 1974, 42 U.S.C. S300f et seq. and the provisions of 40 C.F.R. part 35, §35.600 to §35.630; 40 C.F.R. part 141; and 40  C.F.R. part 142 promulgated by EPA (1999)  under  the federal act.

(b) "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.

(c) "Finished water" means water that is ready for distribution to the customers or users of a public water supply. 

(d) "Firm capacity," as applied to wells, pumping  stations, or units of treatment systems, means the production capability of each respective part of the waterworks system with the largest well, pump, or treatment unit out of service.

(e) "First draw sample" means a 1-liter sample of tap water which has been standing in plumbing pipes for not less than 6 hours and which is collected without flushing the tap.

(f) "GAC10" means granular activated carbon filter beds with an empty?bed contact time of 10 minutes based on average daily flow and a carbon reactivation frequency of every 180 days.

(g) "Gravity storage tank" means an elevated or ground level finished water storage  reservoir that,   during normal use, operates under atmospheric pressure.

(h) "Ground water" or "groundwater" means the water in the zone of saturation in which all of the pore spaces of the subsurface material are filled with water.

(i) "Ground water under the direct influence of surface water (GWUDI)" means any water beneath the surface of the ground with significant occurrence of insects or other macroorganisms, algae, or large?diameter pathogens such as Giardia lamblia or Cryptosporidium, or significant and relatively rapid shifts in water characteristics, such as turbidity, temperature, conductivity, or pH, that closely correlate to climatological or surface water conditions.  The department will determine direct influence for individual sources in accordance with this definition and R 325.10611(1) and will notify the system of its determination.

(j) "Grout" means neat cement, concrete, or other sealing material which is approved by the department and which is used to seal a well casing in a well.

(k) "Haloacetic acids (five) (HAA5)" mean the sum of the concentrations in milligrams per liter of the haloacetic acid compounds (monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid, and dibromoacetic acid), rounded to 2 significant figures after addition.

(l) "Imminent hazard" means that, in the judgment of the director, there is a violation, or a condition that may cause a violation, of the state drinking water standards at a public water supply requiring immediate action to prevent endangering the health of people.

(m) "Initial compliance period" means January 1993 to December 1995.  For a system that has less than 150 service connections, the initial compliance period is January 1996 to December 1998 for contaminants listed in part 6 of these rules that have an effective date of January 17, 1994.

(n) "Large water supply" or "large water system," for the purpose of lead and copper control, means a public water supply that serves more than 50,000 persons.

(o) "Lead service line" means a service line which is made of lead and which connects the water  main to the building inlet and any lead pigtail, gooseneck, or other fitting that is connected to the lead line.

(p) "License" means the license that is issued by the department to a water hauler, or for a water hauling tank, pursuant to section 18 of the act.

(q) "Limited treatment system" means a treatment system, including, but not limited to, disinfection, fluoridation, iron removal, ion exchange treatment, phosphate application, or filtration other than complete treatment.

(r) "Living unit" means a house, apartment, or other domicile occupied or intended to be occupied on a day-to-day basis by an individual, family group, or equivalent.

History:  1954 ACS 94, Eff. Jan. 12, 1978; 1979 AC;  1994  MR  12,  Eff. Jan. 5, 1995; 1994 MR 12, Eff. Jan. 5, 1995; 2000 MR 19, Eff. Dec. 8, 2000; 2002 MR 10, Eff. May 30, 2002; 2003 MR 2, Eff. Jan. 29, 2003.