1. (a) Except as specified in subsection (b), the following minimum quantities of sodium hypochlorite with 5.25 percent to 6.0 percent strength, manufactured under trade names including Clorox, Purex, Sno-White, and Topco, and other bleach products with similar properties, shall be used to disinfect each abandoned water well or borehole:

   Water well casing or hole diameter (inches)	Sodium hypochlorite (fluid ounces per foot of water column)
   1.25	0.015
   1.5	0.023
   2	0.041
   2.5	0.064
   3	0.094
   3.5	0.127
   4	0.165
   5	0.259
   6	0.381
   8	0.660
   10	1.036
   12	1.490
   14	2.031
   16	2.650
   18	3.354
   24	5.966
   30	9.317

2. (b) Any concentration of sodium hypochlorite not specified in subsection (a) or any combination of calcium hypochlorite may be used to disinfect an abandoned water well or borehole, if a minimum concentration of 100 milligrams of chlorine solution per liter per foot of water column in the water well or borehole is produced.

(Authorized by and implementing K.S.A. 2004 Supp. 82a-1028 and K.S.A. 82a-1213; effective Sept. 30, 2005.)