b'first draw and flush sample met the required action level of less than 5 PPB, the water source may have been turned back on for regular use. If the lead concentration of either the initial first draw or flush sample was found to be at 5 PPB or greater, the water source location did NOT meet lead in drinking water criteria and should have remained restricted for use until additional remediation activities and follow up water sampling activities were performed to show it did meet concentrations of less than 5 PPB, or should have been permanently removed/capped and/or signage attached to or whole building water filters, andindicate the source was NOT to be usedclearly indicate that it was not to be other cleaning activities to help reducefor drinking and/or cooking purposes.used as a drinking water outlet.lead levels prior to performing follow upAfter remediation activities, followSo, if everything above seems to fall in sampling.It should be noted that in lieuup sampling of each elevated waterline with what your school district did, of remediation/cleaning activities of thesource (by initial first draw and flushnow what? elevated water sources, the water source(run water for ~30+ seconds, thenAccording to Missouri Senate Bill 681 location may have been permanentlysample) sampling methods) shouldSection 160.077 and information provided removed from the facility (not requiring additional follow up sampling) and/ have been performed to determineby the MODHSS Healthy Drinking or appropriate signage may have beenlead concentrations. If the leadWater Unit, the only requirement (at this installed (i.e., hand washing only) toconcentration of both the initialtime) is that school districts must: BUILDING & CONSTRUCTIONFacility SolutionsFor Healthy Learning Environments We specialize in commercial glass. Environmental Consulting Industrial HygieneEntrances/Storefronts/Curtain Walls/Specialty Glass Geotechnical EngineeringConstruction Materials TestingWindow replacements on renovation projects through TIPS Building Sciences & Enclosure ConsultingSchool safety solutions: a focus on security and ballistic Sustainability & Resilience Certified 3M supplier & installer SolutionsLet us help with yourCONTACT US TODAYnext commercial project!1.800.WORLDLABCanTexglass.comicenter@intertek.comNixa, MO(417) 761-4163Ryan@CanTexglass.com intertek.com/psi22|SCHOOL PLANT MANAGER MAGAZINE|SUMMER 2025'