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<br />Environmental Solutions Group ● 7 Maple Leaf Drive., Greensboro, NC 27401 ● 336-373-1538 ● www.Go-ESG.com 2 <br />Report with Protocols for Remediation <br />Environmental Solutions Group <br />Leading people, companies and communities to live, <br />work and prosper in a sustainable environment. <br /> <br />Assessment Protocol: <br />This report is based upon a non-destructive visual assessment, laser particle detection and material samples collected on <br />July 26, 2021, as an update from a protocol assigned on September 14, 2020. Components to be sampled were selected <br />by the investigator. As mold can spread quickly under optimal conditions, both visual mold and spores can vary from <br />day to day. For this reason, Environmental Solutions Group certifies that the mold counts contained in this report are <br />valid on the dates of inspection. <br />Protocols for remediation are valid for a period of thirty (30) days from the date this report was issued. Furthermore, <br />Environmental Solutions Group (ESG) certifies that material inside the building contains the spore counts as indicated in <br />the report. ESG is not able to certify that mold does not exist in areas that were inaccessible during the inspection <br />process or that mold spores are not present in the air of the building. Testing and analysis of this investigation only <br />pertains to damage from moisture and mold, and this report is intended to be relied on solely by the client. ESG’s <br />liability is limited only to the fees paid by the client. <br />Brief History (based upon information provided by the client and the onsite assessment): <br />Environmental Solutions Group (ESG) was contracted by Orange County to perform laboratory sample collections <br />and an indoor air quality assessment of the warehouse of the EMS building located at 510 Meadowlands Drive in <br />Hillsborough, NC. A previous protocol was assigned on 9/14/20 and this report is an update of conditions combined <br />with the previous report. Since the previous report, contents have been removed from the warehouse and <br />engineering controls were implemented to help stabilize the environment and protect workers from areas of <br />critical use. The warehouse was previously mostly used for storing contents, many of which are for medical <br />purposes, and suspect microbial growth was observed at multiple contents in the interior of the building. <br /> <br />Real-time measurements of the indoor air quality were collected throughout the warehouse. Surface samples were <br />collected for laboratory analysis at numerous contents to determine the presence of microbial spores. Air samples <br />for laboratory analysis were collected within the warehouse and the interior of the building near the warehouse <br />entrance. <br /> <br />Methods: <br />Surface Sampling for Laboratory Analysis: representative bulk surface samples were collected using a sterile swab. <br />Results of the lab analysis are discussed below. <br />Air Sampling for Laboratory Analysis: samples were collected using a Micro-5 cassette for a 25 Liter collection of total <br />spores, viable and non-viable. A Buck L-7 sampling system was used for sample collection. ESG’s Buck pumps are <br />serviced and calibrated by the manufacturer and were calibrated prior to and during the assessment with a Zefon air <br />flow rotameter. Results of the lab analysis are discussed below. <br />Visible indications of moisture and suspect microbial material observed: <br />• 8/4/21 protocol update: <br />o Contents were removed from the interior. Signs of dust and/or suspect microbial growth w ere observed <br />on the remaining racks and flooring. <br />o ESG measured relative humidity measurements all above 78% within the warehouse during the data <br />collection. <br />• Previous observations from 9/14/20 protocol: <br />DocuSign Envelope ID: A9A4637A-BE59-4285-99BE-D253C29FA836