Monthly log
The monthly ground-level check
At least once a month, unless MassDEP approves otherwise in writing, the tank and its grounds get a ground-level inspection with a written, dated log (Chapter 8.1.22(2)).
Binoculars, not a climb
Climbing is not required for the monthly check; binoculars can be used for the top. Anyone who climbs follows OSHA safety rules.
A comment on every problem
Any answer that shows a problem or a coming problem gets a comment; photographs are recommended.
Kept five years
Tank inspections stay on file for MassDEP for at least 5 years, on MassDEP’s inspection reports or AWWA checklist formats (Chapter 8.1.22(5)).
The 21 checks
Item by item, as on the form
The app asks them in this order. Items about a part the tank does not have start as N/A.
- Are photographs to be taken during this inspection?For the record
- Is there damage to the fence?Problem if Yes · N/A when the tank has no fence
- Are there signs of vandalism?Problem if Yes
- Are there signs of forced entry?Problem if Yes
- Is there damage or corrosion to the ladder and/or cage?Problem if Yes · N/A when the tank has no exterior ladder
- Is the roof cover/hatch closed?Problem if No
- Is the roof vent screen in place and clean? (If visible from ground level)Problem if No
- Is the intrusion alarm operational?Problem if No · N/A when the tank has no intrusion alarm
- Is the tank overflowing?Problem if Yes
- Is overflow pipe or box cover blocked?Problem if Yes
- Is the ground level overflow screen in-place and intact?Problem if No
- Does the ground level overflow have a 12-inch minimum air gap?Problem if No
- Are there visible leaks?Problem if Yes
- Is there exterior tank corrosion?Problem if Yes
- Are trees or brush encroaching on the tank or structure?Problem if Yes
- Are there visible foundation problems (i.e. settlement, deep cracking, anchor bolts rust, etc.)?Problem if Yes
- Is there a working exterior sampling station for the tank?Problem if No
- Is the valve pit accessible and free of standing water?Problem if No · N/A when the tank has no valve pit
- Are the cathodic protection meter readings acceptable?Problem if No · N/A when the tank has no cathodic protection
- Are there signs of wind or earthquake damage?Problem if Yes
- Other concerns?Problem if Yes
From MassDEP PWS Monthly Storage Tank Inspection Log (Rev September 2015).
Fence and gate
Roof hatch
Vent screen
Overflow
Valve pit
