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Indoor Environmental Air Quality Assessment <br /> <br />Environmental Solutions Group ● 7 Maple Leaf Drive, Ste 104, Greensboro, NC 27410 ● 336-373-1538 <br />www.Go-ESG.com <br />20 <br />disturbed air conditions to confirm that concentrations of airborne and surface mold spores inside <br />the remediated area of the building envelope meet the following industry guidelines as <br />established by the American Society of Safety Engineers’ Post-Remediation Evaluation Criteria <br />for Mold Contamination (Professional Safety, November 2004). Airborne particle mass (PM10) <br />readings must be below the thresholds established by the EPA for healthy indoor air. <br />• The PRV should be scheduled to occur 24 hours following mold removal and before the <br />remediation firm has pulled equipment out of the building. The remediated area must remain off- <br />limits to any personnel other than the remediation team and testing firm until the PRV has been <br />completed and clearance has been achieved. <br />• Additional documentation and guidance can be provided by ESG regarding PRV methodology <br />and thresholds. ESG can also provide Post Remediation Evaluation (PRE) guidance to help guide <br />the remediation contractor and increase the likelihood of passing the PRV. <br />Restoration Steps Following PRV Testing: <br />• The PRV test should be conducted prior to replacement of any building materials removed during <br />remediation procedures. If you have specific questions regarding this, please contact ESG. <br />• All removed, impacted materials shall be replaced with like materials. All materials installed <br />shall be new. <br />• The remediation contractor cannot be held responsible for future growth of fungal colonies in the <br />remediated area as new growth can be achieved with the reintroduction of moisture. In addition, <br />a warranty to prevent future mold growth is provided by the manufacturer of chemicals that may <br />have been used during remediation and not the remediation contractor. <br />• The US EPA and OSHA recommend a follow-up inspection be conducted at some time period <br />after the mold remediation has been completed. <br />Remediation Contractor Qualifications (to be considered when hiring a contractor to perform any of <br />the remedial steps): <br />• Training. The Contractor’s supervisor of the work crew must attend a recognized training <br />program by the Indoor Air Quality Association (IAQA), the Institute of Inspection Cleaning and <br />Restoration Certification (IICRC), or similar non-profit organization. Proficiency should be <br />demonstrated by an industry certification such as one from the American Council for Accredited <br />Certification (ACAC). <br />• Previous Experience. The Contractor must demonstrate substantial experience with similar <br />projects and provide references. <br />• All workers will be fit tested prior to starting the project (follow company fit test program). <br />• Follow all applicable OSHA safety and health programs. <br />• Demonstrated Ability of Workers. The Remediation Contractor must demonstrate that it has (or <br />will have) a sufficient number of remediation workers who have successfully completed in-house <br />training regarding mold. Because of the timely nature of this project, it is recommended the <br />remediation contractor can provide 15 to 20 trained workers to continuously work on the project <br />until it is complete. Once the remediation process is started remediation contractors should not <br />stop or “pull off” personnel until the project is complete. Because of the nature and thoroughness <br />of this type of work, it is recommended that these workers have been trained properly and are not <br />temporary labor. <br />• Insurance. The Remediation Contractor must demonstrate that it has sufficient coverage to meet <br />owner’s requirement and preferably hold current General Liability and Mold Pollution policies. <br />DocuSign Envelope ID: 8114697F-F41C-43F1-AFE2-ADC7016F0955