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MOLD REMEDIATION GUIDELINES: Containment is a vital part of any remediation program. Its purpose is to ensure that unaffected areas are safeguarded from cross contamination during the removal phase.
An important part of containment is to carefully analyze the areas requiring remediation by considering points of ingress and egress of entrance and exit. These areas are important for workers’ mobility and debris removal.
Personal protection equipment (PPE), is a key element to be considered when establishing containment. If large areas are contaminated, supplied air or other safety equipment may have to be staged within the containment zone. This equipment cannot be transported from zone to zone without being decontaminated first. Therefore, the size of the remediation project is a key factor for containment.
GENERAL PROTOCOL GUIDELINES: The area to be remediated requires a site inspection to determine what areas will be encapsulated. All areas undergoing remediation must be contained before any remediation begins.
Encapsulation must be planned out with entrance and exit ports, while allowing for negative pressure fan units to be installed.
A decontamination zone (sized to remediation needs), must be established in an area that is easily accessible to bother emergency personnel and site personnel.
Containment must address all openings in a designated area, i.e.: windows, doors, ventilation shafts, pipe chases, electrical conduits, vents, rafters and wall partition openings.
All windows should be closed and locked and all seams sealed with duct tape or equal to ensure the effectiveness of a negative pressure environment. All duct work with vents having openings in the containment area should be sealed with a poly coating and duct tape or equal. All doorways should be curtained off and sealed with 4 mil poly, both stapled and seam sealed with duct tape or equal. If a doorway is to be designated as an active entrance and exit, it must be curtained on both sides with 4 mil poly having reversed openings. This is to ensure that a contamination trap is utilized during entering and exiting.
All non-contaminated furnishings within the containment area should be removed prior to final containment. All contaminated furnishings, i.e.: curtains, rugs, upholstery or any other designated contaminated furnishings, should be encapsulated utilizing 3 mil poly and taped closed. This is necessary when such items are going to travel through a non contaminated zone to exit the structure. The same encapsulation procedure should be utilized for all furnishings remaining in the remediation area.
Electrical boxes, switches and receptacles should all be sealed with duct tape to ensure worker safety during shock treatment spray application.
All designated air lines or electrical lines entering the area should be securely taped to the floor and sealed at the point of entrance to ensure the maintenance of a negative pressure environment. Careful planning must be utilized to ensure proper lighting in each containment area. All debris removed should be placed in disposal bags to safeguard non-effected areas during their transport through the structure.
DECONTAMINATION: At the conclusion of each work day, all PPE should be decontaminated in a designated area by utilizing an industrial detergent (Trisodium Phosphate or equal) or, if such PPE is disposable, it should be placed in disposal bags prior to leaving the decontamination area. All decontaminated PPE should then be removed from the decon zone and allowed to air dry in a remote area.
CONCLUSION: The above suggested guidelines are recommended for any reasonable sized mold remediation project. It must be understood, however, that many mold growths have the potential for producing microtoxins, which are, in fact, carcinogenic and can propose serious health risks to remediation personnel if suggested protocol is not followed.
Mold spores are very easily air borne and in some cases can stay suspended in the atmosphere for long periods of time. If they are allowed to settle in non-effected zones, it is possible to create considerable migration of the initial infection. The above protocol is designed to minimize the risk and to ensure a healthy environment for the remediation personnel and satisfactory remediation of the site.
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