Blog
Rules, deadlines and practical answers for building owners, with the official source for each.
10 posts
- Are old floor tiles dangerous if they are not broken?Intact vinyl or asphalt floor tile that contains asbestos is generally not a hazard while it stays whole and undisturbed. EPA says exposure may occur only when the material is disturbed or damaged enough to release fibers. Sanding, cutting, breaking, grinding or ripping up the floor is what creates the risk.Oct 30, 2026
- City of St. Louis asbestos abatement and demolition: how to fileIn the City of St. Louis, the Department of Health's Air Pollution Control Program handles asbestos and demolition notifications for the state. You report each project on the STL City Permits website and pay a fee. As of October 2026, the abatement notification fee is $100 and the demolition notification fee is $100.Oct 30, 2026
- EPA keeps PFOA and PFOS limits, proposes a 2031 deadline optionAs of October 30, 2026, EPA's page describes a proposed rule, not a final one. It would keep the PFOA and PFOS limits at 4.0 parts per trillion each and let water systems request two more years, to 2031, to comply. EPA announced it May 18, 2026. The comment period closed July 20, 2026.Oct 30, 2026
- Free Lead Inspection in St. Louis County: Who QualifiesSt. Louis County's Healthy Homes Program offers free in-home lead inspections to county residents. You qualify if a child under six lives in the home or visits regularly, and that child has a recent venous blood lead level test. Everyone else hires a lead inspector licensed by the state.Oct 30, 2026
- How long does polished concrete last? Traffic, sealing, redoAdvanced Environmental Services says places with heavy traffic may need to redo their concrete finishing every 5 to 10 years. The redo is a quick and affordable process that needs very little downtime. The concrete itself is durable and low maintenance. Foot traffic and sealing are the main things that set how long the finish looks good.Oct 30, 2026
- How to read a PFAS lab report: ppt, PFOA, PFOS and limitsA PFAS lab report lists each compound it tested for, such as PFOA and PFOS, with a result in parts per trillion (ppt), also written ng/L. Compare PFOA and PFOS to EPA's 4.0 ppt drinking water limits. EPA decides compliance by a running annual average, so one result alone does not prove a violation.Oct 30, 2026
- Missouri asbestos notice: the 10 working day rule explainedMissouri requires notification to the Department of Natural Resources at least 10 working days before crews start a demolition or asbestos abatement project on a regulated structure. Demolition notices are required even when no asbestos is found. The inspection report and lab results must go with the notice. The owner and the contractors share the duty to file.Oct 30, 2026
- Mold over 10 square feet: when to call a professionalEPA says that if the moldy area is under about 10 square feet, roughly a 3 foot by 3 foot patch, you can usually clean it yourself. If mold covers more than 10 square feet, or there has been a lot of water damage, EPA points you to its professional remediation guidance and suggests hiring an experienced contractor.Oct 30, 2026
- What Missouri MBE certification means for a prime contractorMissouri's Office of Equal Opportunity certifies a business as an MBE when a U.S. citizen or lawful permanent resident who is a minority owns at least 51% of it, holds the top position and controls daily and long-term decisions, and the firm is for-profit. Certified firms are listed in a state vendor directory and must update every year.Oct 30, 2026
- Who needs a Missouri lead abatement license? RRP vs abatementIn Missouri, anyone who does lead abatement (removal, replacement, enclosure or encapsulation of lead-based paint) must be licensed by the Department of Health and Senior Services, and the company must hold a lead abatement contractor license. Ordinary renovation work in pre-1978 housing falls under EPA's separate RRP certification instead.Oct 30, 2026
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