Tanks, pumps and confined spaces — two standards on every entry.
Wastewater is the industry where 1910.146 and 1910.147 are inseparable. Every tank entry is a confined space with an atmosphere that can change, and every pump, mixer and gate is an energy source that can start.
Small plants, small crews, one person doing entry, attendant coordination and the lockout. The record has to hold up when that person is also the one being asked about it.
Municipal budgets mean the equipment is old and the procedures are older.
The tank drains, the mixer is locked, and the influent valve upstream is still able to open on level control.
The confined-space permit is complete; the lockout for the same tank is a separate form nobody cross-referenced.
It is not, because the lockout was on the local disconnect and the pump has a remote start.
Real isolation-point structure, illustrative tags, equipment that does not exist. Free to read and download. An example to learn from — not a document to adopt.
Permit-required confined space entry into mud tank no.2 for cleaning and internal inspection. 29 CFR 1910.146.
- 12 isolation points
- 3 must stay energised
Also applies: 29 CFR 1910.146
Read the exampleThe permit and the lockout are one record with one close gate, not two binders.
SCADA and level-control paths are points with their own verification, not assumptions.
A small plant with four people pays the same as a large one. Unlimited users.
Plans are per site, per year, unlimited users — see pricing.