In accordance with the US Environmental Protection Agency (US EPA) Oil Spill Prevention regulations found at 40 CFR 112.8(c) owners and operators subject to the Spill Prevention, Control, and Countermeasure (SPCC) rule are required to test or inspect each aboveground container for integrity on a regular schedule. Examples of these integrity tests include, but are not limited to: visual inspection, hydrostatic testing, radiographic testing, ultrasonic testing, acoustic emissions testing, or other systems of non-destructive testing.
The type of inspection to be performed is generally determined by the registered Professional Engineer certifying the SPCC Plan. Many SPCC plans reference the Steel Tank Institute Standard for Inspection of Aboveground Storage Tanks (SP001) as the accepted industry standard that the tanks will be inspected against. SP001 stipulates the recommended inspection frequency for various tank configurations.
While SP001 allows qualified facility personnel to perform the inspections and this is appropriate for monthly visual checks of the tank integrity, CAPACCIO recommends that tanks be inspected by a certified STI inspector at least once per year. A certified STI inspector will often uncover issues of non-compliance that are missed by facility personnel.
If you need assistance with AST integrity testing or SPCC compliance, or have general questions, please contact Jeff Briggs, certified STI inspector, at firstname.lastname@example.org or 508-970-0033 ext. 120.