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

Sec. 10. (a) A new PWS production well must have capacity to meet the pressure and flowrate demands of the system as calculated in section 12 of this rule.

(b) A PWS production well that is equipped with a well screen must:

(1) possess a sustainable yield that prevents the pumping level from dropping below the top of the well screen; and

(2) operate with an entrance velocity less than or equal to one-tenth (0.1) foot per second.

(c) A PWS production well must be evaluated to determine whether it is under the direct influence of surface water as required under 40 CFR 141.72*.

*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 8-3.4-10; filed Jun 17, 1999, 1:50 p.m.: 22 IR 3372; readopted filed Jan 10, 2001, 3:23 p.m.: 24 IR 1518; 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)