Authority: IC 25-39-4-2; IC 25-39-4-9

Affected: IC 25-39

Sec. 2. The following procedures shall be used for the disinfection of bucket wells:

1. (1) The amount of disinfectant required is determined primarily by the amount of water in the well. The following table establishes the amount of chlorine to use for each foot of water in the well:

   Diameter of well in feet	3	4	5	6	7	8	10
   Amount of 5.25% laundry bleach to use per foot of water (in cups)	1.5	3	4.5	6	9	12	18
   Amount of .70% hypochlorite (in cups)	1	2	3	4	6	8	12

2. (2) To determine the amount of bleach, multiply the amount of disinfectant indicated as determined by the diameter of the well times the number of feet of water in the well.
3. (3) The amount of bleach determined under subdivision (2) shall be added to approximately ten (10) gallons of water and splashed around the lining or wall of the well. The entire amount of disinfectant must be circulated so that the solution contacts all parts of the well.
4. (4) The top of the well must be sealed.
5. (5) Instead of the applications described in this section, another application of chlorine may be substituted which results in a chlorine concentration of one hundred (100) parts per million.

(Natural Resources Commission; 312 IAC 13-9-2; filed Nov 22, 1999, 3:34 p.m.: 23 IR 772; readopted filed Aug 4, 2005, 6:00 p.m.: 28 IR 3661; readopted filed May 20, 2011, 3:28 p.m.: 20110615-IR-312110002RFA; readopted filed Jul 19, 2017, 3:45 p.m.: 20170816-IR-312170132RFA; readopted filed May 17, 2023, 10:52 a.m.: 20230614-IR-312230069RFA)