Section 327IAC6.1-2-31.5. "Lagoon" defined  


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  •   5. "Lagoon" means a type of storage structure that is constructed wholly or partially below the original grade of the earth surface. A steel tank that is installed partially below ground is not a lagoon but a storage structure under 327 IAC 6.1-8. (Water Pollution Control Division; 327 IAC 6.1-2-31.5; filed Jul 7, 2003, 4:25 p.m.: 26 IR 3599; readopted filed Nov 21, 2007, 1:16 p.m.: 20071219-IR-327070553BFA; readopted filed Jul 29, 2013, 9:21 a.m.: 20130828-IR-327130176BFA)