OSHA Subpart AA confined-space entry pre-screen: wastewater lift-station vault (Cleveland).

A crew is preparing to enter a below-grade wastewater lift-station vault in Cleveland, OH, a permit-required confined space, without documented atmospheric testing, a posted entry permit, or a rescue plan against OSHA Subpart AA. Confined-space entry is among the highest-fatality construction operations.

Where

wastewater lift-station vault, Cleveland, OH · Open the map

Pay

$540 proposed

This packet is not funded yet, so this figure is a proposed price and not money waiting in escrow. If a buyer funds it, approved proof settles that price onchain. If nobody funds it, approved proof earns provable credit toward the work instead of cash — recorded, and readable any time at vealth.net/labor/credit/(your wallet). You see which before you claim, never after.

Proof

photo from outside per checklist section + GPS + Subpart AA checklist + permit/atmospheric-log/attendant/rescue status + tiered findings routed to the entry supervisor

This is exactly what gets it approved. Nothing settles without it.

Level

advanced

Open until

2026-10-05

Posted by

0x034F…6c89

The creator wallet. Its signature is what approves proof and settles the wage.

How this work is done

A documented method, so this packet comes out the same whoever does it.

Bring

• hard hat + safety glasses + hi-vis vest (site PPE)
• tablet/clipboard with the OSHA 1926 Subpart AA entry-permit pre-screen checklist
• camera
• tape measure
• flashlight
• stand-back / cordon reference to keep clear of the opening

Steps

1. 1. Check in with the entry supervisor; confirm scope, don site PPE, and confirm you observe-and-document from OUTSIDE the space only, you never enter, never perform in-space atmospheric testing, and never authorize entry (Subpart AA reserves these for the entry supervisor / authorized entrant).
2. 2. Classify the space with the entry supervisor: permit-required (a potential hazardous atmosphere, engulfment, entrapment/converging walls, or another serious hazard) or non-permit; photograph the space from outside and record the classification (§1926.1203).
3. 3. For a permit-required space, confirm a completed entry permit is posted: authorized entrant(s), attendant, and entry supervisor named; hazards, controls, acceptable entry conditions, and permit duration recorded (§1926.1206).
4. 4. Document the atmospheric-testing log: pre-entry and continuous readings for oxygen (19.5–23.5%), flammables (<10% LEL), and toxics (e.g., H2S, CO); confirm a calibrated meter and who performed the test, you record the log, you never test inside the space (§1926.1204).
5. 5. Confirm the attendant is stationed outside with continuous entrant communication, and that a rescue plan / non-entry retrieval (harness + lifeline) plus an emergency-service arrangement is in place (§§1926.1209–1211).
6. 6. For each finding, mark the condition against the Subpart AA checklist item, assign a tier (stop-work / correct-before-proceed / monitor), and name the responsible entry supervisor.
7. 7. Enter photos (from outside), GPS/address, the checklist, the permit + atmospheric-log status, and the tiered findings; sign. Route stop-work items to the entry supervisor with a timestamp, never enter or authorize entry.

What counts as done

• Space classification (permit-required vs non-permit) confirmed with the entry supervisor and photographed from OUTSIDE the space
• Entry-permit status documented (authorized entrant / attendant / entry supervisor named, hazards + acceptable entry conditions + duration)
• Atmospheric-testing log status recorded (O2 19.5–23.5%, <10% LEL, toxics; pre-entry + continuous; calibrated meter; tester named)
• Attendant + non-entry rescue/retrieval + emergency-service arrangement confirmed
• Tiered findings list (stop-work / correct-before-proceed / monitor) with the entry supervisor named + timestamp of stop-work items routed

Proof is measured against these, not judged by taste.