Section Env-Or 406.24 - Primary Containment System Testing(a) For purposes of this section, "primary containment system" means any portion of a UST system that contains a regulated substance or oil, or vapors thereof, that is intended to be in contact with the substance being stored, or its vapors, under normal operating conditions, exclusive of pressure piping that is isolated from the tank by a submersible pump.(b) The owner of a motor fuel dispensing UST system shall test the primary containment system for tightness no later than December 22, 2017 and triennially thereafter using the following test methods as applicable: (1) Owners of UST systems storing gasoline who are required by Env-Or 500 to perform periodic pressure decay testing shall comply with those requirements;(2) Owners of UST systems storing gasoline who are not required by Env-Or 500 to perform periodic pressure decay testing shall perform the pressure decay test as specified in Env-Or 504.10(a)(2) and Env-Or 504.10(b) or use a test method as specified in Env-Or 406.11; and(3) Owners of UST systems storing diesel fuel shall use: a. A test method as specified in Env-Or 406.11; orb. The pressure decay testing method as specified in Env-Or 504.10(a)(2) and Env-Or 504.10(b), provided soap checks of accessible tank top fittings and risers are conducted during the test and repairs are made as leaks are encountered.(c) Any owner of a motor fuel dispensing UST system storing diesel fuel who conducted tightness testing on the primary containment system using the method specified in (b)(3)b., above, on or after April 15, 2016, may rely on the results of that test to meet the requirement for initial testing.(d) Test reports shall be completed and submitted as specified in Env-Or 406.13.(e) Test failures shall be addressed as specified in Env-Or 406.14.N.H. Admin. Code § Env-Or 406.24
(See Revision Note at chapter heading for Env-Or 400) #10393, eff 9-1-13
Amended by Volume XXXVII Number 37, Filed September 14, 2017, Proposed by #12365, Effective 8/19/2017, Expires 8/19/2027.The amended version of this section by New Hampshire Register Volume 38, Number 45, eff. 10/10/2018 is not yet available.