2021-482-E-AMS-Sasser Companies-Emergency Services 510 meadlowlands drive warehouse remediation

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Environmental Solutions Group ● 7 Maple Leaf Drive., Greensboro, NC 27401 ● 336-373-1538 ● www.Go-ESG.com 8 Report with Protocols for Remediation Environmental Solutions Group Leading people, companies and communities to live, work and prosper in a sustainable environment. • It may be necessary to place plastic barriers at the cavities, especially if airborne particle counts continue to be an issue. Although these areas may appear to be clean, they may introduce some contaminants into the clean space and you may not be able to fully control the air quality without barriers. • Power off all air scrubbers in the building and fog it with an EPA-registered anti-microbial intended for bioaerosol application. • Power on the scrubbers after the manufacturer’s recommended dwell time has elapsed. • Allow the air scrubbers to remain in operation for a minimum of 24 hours prior to collection of air samples for clearance testing (or until airborne particle load indicates that the home is ready for a clearance assessment). Handling of materials removed from the building or that will remain in the building: • Certain items removed from the building require special handling for removal of fungal spores. • Hard-surfaced non-porous materials such as solid wood furniture, non-porous decorative items, and glass may be HEPA-vacuumed, wiped down with an EPA-registered anti-microbial designed for wipe application, and HEPA-vacuumed one more 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. 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. o 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. DocuSign Envelope ID: A9A4637A-BE59-4285-99BE-D253C29FA836