Section 355 IAC 5-4-1 - General requirementsAuthority: IC 15-16-4-50; IC 15-16-4-52; IC 15-16-5-64
Affected: IC 15-16-4; IC 15-16-5
Sec. 1.
(a) Liquid bulk and minibulk pesticide storage containers shall be located within secondary containment constructed with an impermeable floor and perimeter wall. Secondary containment for liquid bulk storage containers must have a sloped floor. Secondary containment for minibulk storage containers is not required to have a sloped floor.(b) The secondary containment area for liquid bulk pesticide storage containers shall be separate from a secondary containment area for all other materials. The secondary containment area for liquid minibulk pesticide containers is not required to be separate from a secondary containment area for other chemical storage containers. Adjoining secondary containment areas may share impermeable common walls.(c) Secondary containment not protected from rainfall shall at all times have a minimum capacity of one hundred percent (100%) of the volume of the largest storage container within the contained area plus the volume displaced by all the other tanks, equipment, and appurtenances in the area up to the safe design level of the containment structure, plus a freeboard of six (6) inches.(d) Secondary containment protected from rainfall is not required to have the freeboard noted in subsection (c), but shall comply with all other requirements therein.(e) Secondary containment constructed prior to enactment of this rule and that has a capacity of a minimum of one hundred ten percent (110%) of the volume of the largest storage container within the contained area plus the volume displaced by all the other tanks in the area up to the safe design level of the containment structure shall be deemed to be in compliance with this rule. A storage facility upon alteration of the secondary containment area or increases in storage container volume shall be brought into full compliance within ninety (90) days of alteration or increase.(f) Open drains and permeable tile drainage shall not be permitted within or under secondary containment.State Chemist of the State of Indiana; 355 IAC 5-4-1; filed Mar 8, 1991, 2:45 p.m.: 14 IR 1405, eff sixty 60 days after filing with secretary of state; readopted filed Nov 21, 2001, 10:17 a.m.: 25 IR 1269; filed Feb 20, 2002, 9:38 a.m.: 25 IR 2217; readopted filed Sep 3, 2008, 1:46 p.m.: 20080924-IR-355080553RFAReadopted filed 10/17/2014, 9:26 a.m.: 20141112-IR-355140342RFAReadopted filed 10/26/2020, 10:27 a.m.: 20201125-IR-355200459RFAFiled 4/24/2023, 10:38 a.m.: 20230524-IR-355220386FRA