2019-193-E AMS - Sasser Companies ES remediation

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DocuSi n Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C E tnvironmeniai 3omuons uroup Leading people,companies and communities to live, Report with Protocols for Re m e d i a t i o n work and prosper in a sustainable environment. IICRC 5520 Condition 2 (interior of the building and contents):airborne and settled fungal spores likely to have been dispersed from a Condition 3 area. • The primary work area is defined as the moisture effected zones, however,the remainder of the of the building and HVAC duct systems will require some level of cleaning to remove settled and airborne fungal material.The surfaces in the building should be cleaned and extra focus should be attended to porous items. • As mentioned above,the HVAC equipment will need to be cleaned and sanitized as part of this remediation. Heating,ventilation and air-conditioning systems (HVAC) play an important role (both positive and negative) in fungal infestation and dissemination as follows: 1) as a dispersal pathway for airborne fungal spores; and 2) as growth locations for fungi that enter the systems (e.g., drip pans, chill coils, and duct work). • Remediation should be conducted by personnel trained on proper clean-up methods, personal protection, and potential health hazards to comply with requirements of the OSHA Hazard Communication Standard (29 CFR 1910.1200) • Respiratory protection in accordance with the OSHA respiratory protection standard (29 CFR 1910.134) is recommended. Gloves and eye protection should be worn. • Applicable federal, state and local administrative codes, rules and statutes must be identified and followed. Preparatory Steps(to be performed by the remediation contractor): • Use blue painters tape under duct tape to prevent unnecessary damage to walls; use staples and duct tape and/or spray tack to seal the protective barriers. • Seal all exterior wall penetrations and window seals in the building with blue painters tape to keep outdoor air from being pulled into the building during depressurization (note: it will be necessary to remove blue tape to clean under it. Replace with new tape after cleaning). • Set up a zip-door at the buildings main entry. The remediation team's access to the unit must include decontamination and egress chambers so that the hygienist has a clean area to dress and access the building at the clearance assessment. Consult with ESG as to how to configure the containment if you are unsure. • Position sufficient air scrubbers throughout the building to remove a minimum of four air volumes per hour. Approximately 15-30 large air scrubbers are anticipated for the entire building(this number may vary based on the remediator's recommendations and the PRV testing strategy). Place equipment where it can move the most air and reposition as necessary. Air scrubbing equipment needs to remain in operation until the PRV assessment is complete and/or permission is granted by ESG to remove equipment. Note: the amount of air scrubbing equipment may be adjusted up or down based on airborne particle mass readings obtained during the remediation and upon ESG's approval. • Use fans, air guns or leaf blowers once every 24 hours to stir up settled dust in the corners and near the floors, walls and ceilings of the building (note: this will require the owner to remove some items). Direct dust towards the air scrubbers to be filtered out of the air. HEPA pre-filters inside the air scrubbers should be changed or cleaned daily or per the manufacturer's recommendations. • Run drying equipment as needed to bring RH below 50%and wood moisture content to 16%or lower. Air movers and dehumidifiers may be required to effectively remove the moisture from the air and building materials. Environmental Solutions Group • 1000 N. Elm St., Greensboro, NC 27401 • 336-373-1538 • www.Go-ESG.com