Authority: IC 13-14-8; IC 13-15-1-2; IC 13-15-2-1; IC 13-18-3-1; IC 13-18-4-1

Affected: IC 13-11-2; IC 13-13-5-1; IC 13-18-2; IC 13-18-16-2

Sec. 25. (a) The following information must be submitted to the commissioner before a new or modified production well is placed into production:

(1) Results of a production well performance test (PWPT) that was performed for a period of at least twenty-four (24) hours for a community PWS and a nontransient noncommunity PWS serving more than two hundred fifty (250) individuals. The PWPT information submitted to the commissioner must include the following:

(A) Pumping rate of test, at least one (1) time the maximum daily pumping rate.

(B) Static water level (stable before pumping).

(C) Water level at:

(i) start up and at interim readings; and

(ii) the end of the PWPT.

(D) Specific capacity at the end of the PWPT.

(2) Each well must be tested for specific capacity of the well. The well must be test pumped at a capacity at least equal to the pumping rate desired from the well during normal usage.

(3) A copy of the department of natural resources' record of water well completed in accordance with the requirements of 312 IAC 13-2-6.

(4) The results of:

(A) water quality samples obtained during test pumping; and

(B) disinfection confirmation samples obtained during disinfection.

(5) Completed copies of the chemical analytical reports of sampling done and analyzed by a laboratory certified by the Indiana department of health or the United States Environmental Protection Agency using methods in 40 CFR 141.23* for the following constituents:

(A) Nitrate (NO₃).

(B) Fluoride.

(b) The commissioner may modify or revoke a construction permit based on the information submitted under subsection (a) in accordance with IC 13-18-16-2.

*These documents are 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 8-3.4-25; filed Jun 17, 1999, 1:50 p.m.: 22 IR 3378; readopted filed Jan 10, 2001, 3:23 p.m.: 24 IR 1518; filed Apr 24, 2006, 3:00 p.m.: 29 IR 2970; readopted filed Nov 21, 2007, 1:16 p.m.: 20071219-IR-327070553BFA; readopted filed Jul 29, 2013, 9:21 a.m.: 20130828-IR-327130176BFA; readopted filed Jun 14, 2019, 1:59 p.m.: 20190710-IR-327190246BFA; readopted filed Oct 18, 2024, 1:57 p.m.: 20241113-IR-327230810RFA; filed Nov 24, 2025, 9:07 a.m.: 20251224-IR-327240428FRA)