1. (a) The owner of each water supply system and wastewater treatment facility shall designate an operator in responsible charge of the system or facility, or both, whose qualifications are commensurate with the following:

   SYSTEM OR FACILITY CLASS	OPERATOR CLASS
   Small System	Small System, I, II, III, or IV
   I	I, II, III, or IV
   II	II, III, or IV
   III	III or IV
   IV	IV

2. (b) Classification of water supply systems shall be as follows:

   CLASS	POPULATION SERVED
   Small System
   Distribution system only	All, no limit
   or
   Chlorination of groundwater only	less than 501
   Class I
   Chlorination of groundwater only	501-1,500
   or
   Treatment of groundwater	less than 501
   Class II
   Chlorination of groundwater only	1,501-5,000
   or
   Treatment of groundwater	501-2,500
   or
   Treatment of surface water	less than 2,501
   Class III
   Chlorination of groundwater only	5,001-20,000
   or
   Treatment of groundwater or surface water	2,501-10,000
   Class IV
   Chlorination of groundwater only	over 20,000
   or
   Treatment of groundwater or surface water	over 10,000

3. (c) Classification of commercial, industrial, and municipal wastewater treatment facilities shall be as follows:

   CLASS	POPULATION SERVED
   Small Systems
   Nonoverflowing municipal wastewater ponds	All, no limit
   Class I
   Any secondary treatment facility	less than 1,000
   or
   Overflowing wastewater ponds	All, no limit
   Class II
   Any secondary treatment facility	1,001-5,000
   Class III
   Any secondary treatment facility	5,001-25,000
   or
   Advanced or specialized treatment facility	less than or equal to 5,000
   Class IV
   Any secondary treatment facility	over 25,000
   or
   Advanced or specialized treatment facility	over 5,000

4. (d) For purposes of this regulation, "treatment," as it applies to water supply systems, shall include the following processes:

   1. (1) Iron and manganese removal;
   2. (2) membrane filtration;
   3. (3) softening;
   4. (4) coagulation, sedimentation, and filtration;
   5. (5) recarbonation; and
   6. (6) addition of chemicals other than chlorine for improved water quality.

5. (e) For purposes of this regulation, "secondary treatment facility" shall be any department-permitted biological treatment facility, including the following:

   1. (1) Waste stabilization ponds;
   2. (2) trickling filter plants;
   3. (3) rotating biological contactor plants; and

   4. (4) activated sludge plants.

      A secondary treatment facility may include biological, physical, or chemical disinfection.

6. (f) For purposes of this regulation "advanced or specialized treatment facility" shall include facilities utilizing selected biological, physical, and chemical separation processes to remove organic and inorganic substances that resist conventional treatment practices. Biological, physical, and chemical disinfection shall not be considered advanced or specialized treatment.

(Authorized by K.S.A. 65-4512; implementing K.S.A. 65-4505 and 65-4512; effective Sept. 28, 1992; amended Aug. 31, 2001.)