Authority: IC 13-14-8; IC 13-14-9; 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. 3. (a) A public water system's daily capacity shall be determined by adding together the production capacity determined under subsection (b) and the purchased capacity, if any, determined under subsection (c).

(b) The production capacity is the lesser of the following amounts:

1. (1) The "design daily production" in gallons per day as reported on the most recent Public Water System Sanitary Survey conducted by the commissioner pursuant to 327 IAC 8-2-8.2.
2. (2) The sum of the rated daily capacity of all primary pumps utilized by a public water supplier less the primary pump with the largest rated capacity. For example, a public water system with a five hundred (500) gallons per minute pump and a four hundred (400) gallons per minute pump would have a system capacity of four hundred (400) gallons per minute.

(c) A public water system that supplements its own capacity by purchasing water may add the amount of the purchase capacity to the public water system daily capacity. The purchase capacity is one (1) of the following amounts:

1. (1) The contractual amount, expressed as a daily quantity, of water purchased from a separate public water system.

2. (2) The commissioner's approved amount, expressed as a daily quantity, of water purchased from a separate public water system. The commissioner's approval of the purchase capacity is required when:

   1. (A) no purchase water contract exists; or
   2. (B) no finite daily quantity of water is specified in the purchase water contract.

(Water Pollution Control Division; 327 IAC 8-3.3-3; filed Mar 31, 1999, 1:50 p.m.: 22 IR 2510; errata filed Aug 30, 1999, 12:06 p.m.: 23 IR 25; 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)