2022-029-E-AMS-Sasser Companies-Rogers Road Community Center Remediation

Browse Search

DocuSign Envelope ID:6A1278D6-4287-4002-98A9-C69C8C1D313E Indoor Environmental Air Quality Assessment time to remove inactive fungal spores. Test furniture in an inconspicuous area prior to wiping the entire piece with anti-microbial. General Recommendations: • Check for and document any areas of hidden damage and/or contamination during the remediation process. Contact ESG if you suspect contamination beyond that documented in this report. It is not unusual to find hidden areas of microbial growth or moisture damage when wet building materials are being removed. • The work areas should be left dry and visibly free from contamination and debris. • Do not apply an encapsulant or other substance that will prohibit a visual inspection of the building materials during the post-remediation verification(PRV)assessment. Encapsulants must be applied after an acceptable PRV assessment. • Seal the remediated areas to be clearance-tested after final cleaning to ensure entrance to the area is prohibited. Only the hygienist or indoor air quality professional performing post-remedial testing is to enter the contained areas. Critical barriers are to remain in place until certification is issued by Environmental Solutions Group indicating that the building is safe for re-occupancy. • Contact Environmental Solutions Group at 336-373-1538 to schedule post-remediation verification testing of the remediated structure to certify that it is ready for continued restoration and safe for occupancy. Post Remediation Verification(PRV)Recommendations: • All of the major safety,health, and remediation standards organizations recommend that a PRV, also known as clearance testing,be conducted by a mold professional not affiliated with the remediation firm. The Texas Guidelines require that the same equipment be used during the PRV as during the pre-remediation inspection. It is highly advisable and in the best interest of the property owner to follow these recommendations. • Leave any HEPA filters running but turn off and remove non-HEPA containing dehumidifiers 48 hours prior to the PRV. Leaving HEPA filters running until instructed by ESG is the preferred method of protecting workers and building occupants. Leaving air-moving equipment in operation has also been shown to provide the most accurate test results during the clearance assessment. If HEPA machines are moved or shut down while the area is under negative pressure,be sure the machines are properly shut off and HEPA filters are sealed in plastic to avoid re-contamination prior to the PRV. • The PRV assessment will include a visual inspection and collection of airborne particle load (PM10)readings from several interior areas. ESG may also choose to collect a swab surface sample of framing and/or floor system to be sure surface levels of fungal spores are at a normal fungal ecology level as defined by the S520 standard. If any of the testing methods above do not meet the specifications provided in the PRV assessment areas,re-cleaning of the remediated area(s)is required. A typical PRV also includes a visual inspection for dust and mold residue, confirmation that the source of the moisture has been corrected, and air sampling under normal disturbed air conditions to confirm that concentrations of airborne and surface mold spores inside the remediated area of the building envelope meet the following industry guidelines as established by the American Society of Safety Engineers' Post-Remediation Evaluation Criteria for Mold Contamination(Professional Safety,November 2004). Airborne particle mass(PM10) readings must be below the thresholds established by the EPA for healthy indoor air. Environmental Solutions Group • 7 Maple Leaf Drive,Ste 104, Greensboro, NC 27410 • 336-373-1538 28 www.Go-ESG.com