Authority: IC 13-14-8; IC 13-18-11-1.5; IC 13-18-11-13

Affected: IC 13-11-2; IC 13-18-11

Sec. 1. (a) All purification or treatment works producing water to be used or available for drinking purposes by the public must be properly and efficiently operated under the supervision of a competent operator or superintendent.

(b) The commissioner may require the qualified operator or superintendent in responsible charge to attend training whenever, in the opinion of the commissioner, the training is deemed necessary for the protection of the public health.

(c) Monthly reports of operation of the following system classifications must be submitted by the operator to the commissioner:

(1) WT2.

(2) WT3.

(3) WT4.

(4) WT5.

(5) A community or nontransient noncommunity PWS purchasing water from WT4 or WT5 systems.

(6) Other systems determined by the commissioner to require monthly reporting.

(d) Reports of operation required under subsection (c) must be submitted on forms to be provided or approved by the commissioner and must include the following data, if applicable:

(1) Daily quantities of the following:

(A) Water treated.

(B) Water distributed.

(C) Chemicals added to the water.

(2) Daily operation of treatment processes, including backwashing of filters by the amount of filter run time and total gallons of backwash.

(3) Results of the following:

(A) All chemical, physical, and other tests performed for plant control.

(B) Disinfectant residual in the distribution system where disinfection is provided.

(4) Totals and averages of the measurements in subdivision (3) where spaces are provided on the report form.

(5) Other data found to be necessary by the commissioner.

(e) The commissioner may reduce or modify the reporting requirements for any of the items in subsection (d).

(f) Monthly reports of operation must be:

(1) submitted to the commissioner:

(A) within the first ten (10) days following the month for which the report is prepared; and

(B) using the methods specified in 40 CFR 141.31*; and

(2) retained by the water systems for five (5) years.

*This document is incorporated by reference. Copies may be obtained from the Government Publishing Office, www.gpo.gov, or are available for review at the Indiana Department of Environmental Management, Office of Legal Counsel, Indiana Government Center North, 100 North Senate Avenue, Thirteenth Floor, Indianapolis, IN 46204.

(Water Pollution Control Division; 327 IAC 8-11-1; filed Sep 24, 1987, 3:00 p.m.: 11 IR 718; readopted filed Jan 10, 2001, 3:23 p.m.: 24 IR 1518; filed Oct 24, 2006, 3:03 p.m.: 20061122-IR-327050255FRA; readopted filed Jul 18, 2012, 2:25 p.m.: 20120815-IR-327120261BFA; readopted filed Jun 6, 2018, 1:59 p.m.: 20180704-IR-327180171BFA; readopted filed Oct 18, 2024, 1:57 p.m.: 20241113-IR-327230810RFA; filed Nov 24, 2025, 9:07 a.m.: 20251224-IR-327240428FRA)