Authority: IC 13-14-8-7; IC 13-15-1-2; IC 13-15-2-1; IC 13-18-3-1; IC 13-18-12- 4

Affected: IC 13-11-2; IC 13-12-3-1; IC 13-18; IC 13-30-2-1

Sec. 55.3. "Surface conduit to a subsurface feature" means any surface expression of an enhanced pathway to a natural, geologic formation or manmade workings beneath the land surface. A surface conduit may include a sinkhole, slotted tile riser, or catch basin. A subsurface feature may include underground mines, aquifers, or underground streams.

(Water Pollution Control Division; 327 IAC 6.1-2- 55.3; filed Jul 7, 2003, 4:25 p.m.: 26 IR 3601; 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)