"Hydrant pit" means a liquid-tight container that protects the environment in the containment area for fueling aircraft at an airport hydrant fuel distribution system by containing leaks and spills of regulated substances from piping, dispensers, dispensing connections, pumps, and related components, that can serve as both a containment sump for underground piping and spill containment for fuel transfers to aircraft.
N.H. Admin. Code § Env-Or 402.23
(See Revision Note at chapter heading for Env-Or 400) #10393, eff 9-1-13