Aboveground Storage Tank Inspection Checklist
Use this checklist to help you conduct basic walkthrough inspections of the facility to make sure that all essential equipment is working properly and that there are fuel release response supplies on hand.
MaintainX
07/22/2022
Aboveground Storage Tank Inspection Checklist
Use this checklist to help you conduct basic walkthrough inspections of the facility to make sure that all essential equipment is working properly and that there are fuel release response supplies on hand.
Facility:
Facility ID:
Code:
Type:
Date:
Supervisor:
Tank Registration
All tanks on site are registered
Registered to current owner.
Tank type and size is correct.
Records
Maintenance, repair, testing & inspection records are to be on site or available electronically during inspection.
Monthly and annual owner inspection records; 20 year inspection record where applicable
AST's with underground piping need to maintain the following:
Annual corrosion protection tests or rectifier logs (impressed systems).
Monthly leak detection
Visual Inspection
Tank
Tank is listed, labelled or approved for aboveground use.
Tank is set on a flat, smooth, solid surface.
Tank is painted or has acceptable corrosion protection.
Tank is double wall with interstitial monitoring or is in a compliant dike.
Tank has NFPA 704 signage visible to oncoming emergency personnel and Class I liquid tanks are labeled "Flammable - Keep Fire Away”
Multiple tanks must have at least 3 feet of space between tanks.
Vent pipe is minimum 2 inch diameter and ends no less than 12 feet above adjacent ground level. (Flammable Liquids)
Each compartment and interstice has an independent emergency vent that opens under pressure.
Dike/Secondary Containment
Tank yards and dike areas shall be kept free from debris and kept clean and orderly
Containment is maintained to original approved volume
Containment is liquid tight
Tank separation from the dike toe and floor per approved plans
Containment has a manually controlled means of drainage.
Drain shall be manually controlled to prevent liquids from entering natural water course, public sewers & drains.
Drain shall be accessible under fire conditions from outside the dike.
Storage of other materials shall not be permitted in the dike area
Collision Protection
Collision Protection
2 feet clearance between collision protection and tank or system component.
Spill and Overfill Prevention
Spill and overfill equipment is working as designed.
Separate fill and vent openings
Point of delivery fueling; Fill connection has a catch basin or is within a containment.
Fill point remote of tank and dike; 90% Visual-Audible signal & 95% shut-off equipment required.
Clearly identified and easily accessible Emergency Shut-Off switch between 20 and 100 feet from fuel dispenser(s) or per plan approval.
Means shall be provided to prevent the release of liquid by siphon flow.
Each hose dispensing Class I & II liquids has an emergency breakaway.
Piping
Piping is protected from impact, vibration and expansion/contraction.
Piping has acceptable corrosion protection.
Underground piping meets leak detection requirements. ATCP 93.510(4)
Tank Vehicle Unloading; A check valve shall be installed in piping at point where connection/ disconnection is made
Tank is bottom loading or fill pipe terminates within 6 inches of tank bottom.
All fill pipes shall be locked, labeled and color coded as specified in ATCP 93.230(12)
Fuel Dispensing
Nozzle is listed, automatic closing & of proper diameter for class of fuel dispensed.
Hose lengths of more than 18 feet must be reeled, racked or otherwise protected or approved.
Hose has no signs of wear or stress.
Shear valve is installed to manufacturer’s specifications. (Class I fuel)
Dispenser labeling is in accordance with ATCP 94
Tank area shall be secured by a 6 foot high noncombustible building or fence with a gate except were exempt under par. (b) or (c )
80 B:C fire extinguisher is maintained, inspected & installed no more than 100 feet from dispenser(s).
Gasoline fueling warning sign (No Smoking, Stop Engine, Fill container on ground & No underage use).
Operating and Emergency Instructions are conspicuously posted in dispensing area.
A means of contacting 911 is provided and clearly identified.
Marina Fueling
A latch open nozzle may not be used above or within 100 feet of navigable water.
Hose lengths of more than 18 feet must be reeled, racked or otherwise protected.
Piping meets "Material and Listing Requirements" and have flexibility allowing movement with the pier.
"Flex connectors"; At least 1 flex connector listed for aboveground use is placed between rigid pipe on shore and rigid pipe that serves the dispenser.
Fueling procedure sign is correct and in place.
Bulk Plant - Loading Rack
Loading/Unloading area of tanks larger than 5000 gallons capacity shall have a catch basin or treatment facility large enough to contain the capacity of the largest tank car or tank vehicle loaded/unloaded.
All tanks and piping are identified as to product inside according to American Petroleum Institute 1637
Dike floor and walls shall be liquid tight.
Loading rack has electrical-bonding cord.
Loading arms are equipped with a deadman control device & extend near bottom of tank.
Smoking shall be permitted only in designated and identified areas.
Leak, Spill, Overfill or Release
Leaks shall be immediately stopped and migration of product stop.
Fire Equipment
All fire protection equipment shall be properly maintained and inspected.
Unlisted Violation(s) or Comments:
Source: MaintainX (Community Member)