This is a violation of the permit to operate. Raised liquid sensors in the piping sump, or trench liner sump, due to liquid intrusion is the most common problem. The best solution is to prevent liquid from collecting in the sump. For example, check gaskets, use sealers, or utilize liquid tight sump covers. Contact your maintenance contractor, or a qualified person, to remove the liquid.
Any liquid removed from the sump is considered a hazardous waste unless proven otherwise.
All hazardous waste must be removed by a registered hazardous waste hauler. Tank owners are ultimately responsible for the proper operation of the leak detection system, but operators should check any work done by maintenance personnel. Do not let anyone raise the leak detection sensor unless the affected UST turbine is shut off until the liquid is removed. Do not jeopardize your UST Permit to Operate by raising or defeating leak detection sensors. Drums storing hazardous waste are required to be in good condition, free of severe rusting and structural defects, and cannot leak.