Category 3 in a Daycare
A 1,100 sq ft daycare has 2 in of standing water in the main playroom and hallway after a sewer backup. The water reached the bottom 18 in of drywall, the carpet and pad, two foam play mats, and a wooden storage cubby. Twelve children are out of the building; parents are calling. The owner wants to extract, spray disinfectant, and reopen in 48 hours because the state licensing inspector is due. The building has one exterior door and no dedicated containment vestibule. You have a truck-mounted extractor, a portable extraction unit, PPE, and negative-air equipment. The owner says, 'It's just dirty water; the kids won't be in that room.' The insurance adjuster has not yet authorized reconstruction.
1. What immediate safety and scope decisions do you make, and how do you communicate them to the owner?
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Category 3 water is grossly contaminated; the playroom is not a dirty-water cleanup that can be sprayed and reopened. I would stop occupant access, establish containment at the hallway opening with negative air if the equipment can maintain pressure, and use PPE including gloves, eye protection, and respiratory protection appropriate to the cleaning chemicals. Porous materials that contacted the water - carpet, pad, foam mats, and the lower drywall - should be removed and bagged, not dried in place. The wooden cubby needs evaluation; if it is porous and contaminated, it is a removal item. I would tell the owner plainly that the 48-hour reopening is not supported, that the children cannot return until removal, cleaning, and verification are complete, and that the licensing inspector should be given the accurate scope. I would also document the sewage source and the owner's request in writing.
2. What documentation and customer-communication steps protect the project if the owner insists on reopening early?
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I would document the category 3 classification, the affected square footage and materials, photographs of the water line, the removal scope, PPE, containment setup, and daily conditions. I would provide the owner a written notice that porous materials exposed to sewage cannot be reliably sanitized in place and that early occupancy is outside the remediation scope. I would offer a partial-use plan only if a separate, contained area passes visual and moisture checks; the playroom would remain closed. I would also notify the adjuster of the conflict between the desired reopening date and the required scope, and ask for written direction. If the owner still insists, I would escalate internally and decline to certify the space as safe. The key is to avoid an oral OK that later looks like contractor approval.