DETAILED VERIFIED ANSWERS (100%) | ALREADY GRADED A+
When is the biocide application performed to achieve a sanitary state of the remaining building materials?
- Correct Answer -after the cleaning of all surfaces has been completed
Biocide applications are discouraged in mold remediation Projects. TRUE or FALSE. - Correct Answer -
TRUE
Biocides can be used as an engineering control to reduce employee's exposure to infectious agents in
sewage remediation. TRUE or FALSE. - Correct Answer -TRUE
Why is a sewage back flow a significant health concern? - Correct Answer -gram negative bacterias & the
infectious agents (virus, parasites, bacterial) // it can cause acute infections and chronic illness
Name 3 groups of microorganisms associated with sewage backflow. - Correct Answer -bacteria //
parasites // viruses
Which 'Gram" group of bacteria is mainly present in sewage back flows? - Correct Answer -gram-
negative
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,Name common bacteria associated with sewage: - Correct Answer -E-Coli
Name some viruses potentially present in sewage backflows: - Correct Answer -hepatitis A // rotavirus
(life threatening diarrhea in children) // adenoviruses
Name the primary biohazards associated with sewage backflows: - Correct Answer -bacteria //
parasites // viruses
When sewage penetrates deeply into porous building material - can they be restored? - Correct Answer -
No
Sewage gets under wood flooring -what needs to be done? - Correct Answer -the wood flooring needs to
be removed and discarded to gain access to be able to decontaminate the subfloor materials
Where do you dispose the effluent? - Correct Answer -into the sanitary system, unless regulated
otherwise
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,Name a rough sequence of procedures for a sewage remediation? - Correct Answer -initial inspection to
determine extent and degree // HVAC // isolate // extract // clean all surfaces // apply biocide //
drying
What do we have to make sure when cleaning the affected area? - Correct Answer -procedures &
equipment should not contaminate the unaffected areas
How do we clean hard to reach affected areas like under sill plates? - Correct Answer -low pressure
flushing (20-60PSI)
What organism is usually tested for in a sewage clearance? - Correct Answer -E-Coli
What is a safe and effective way to address sewage in crawlspaces? - Correct Answer -effluent
extraction // limited soil removal // enzyme treatment // aeration // ventilated ground cover //
negative pressure differential // random soils gas mat system
What determines that contents are treated, cleaned or discarded? - Correct Answer -if it had physical
contact with sewage
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, Attempts to salvage porous materials with sewage contamination can expose us and the occupants to
what type of agent? - Correct Answer -infectious and disease causing agents and organisms
What is the cleaning goal? - Correct Answer -sanitary conditions
What type of immunization is recommended for sewage remediation workers? - Correct Answer -anything
recommended by medical health care professionals (Tetanus and Diphtheria, Hep A and possibly B)
Who decides what immunization(s) an individual can receive? - Correct Answer -health care professionals
Do sewage organisms become easily aerosolized or airborne? - Correct Answer -No
When do we apply blowers in a sewage job? - Correct Answer -until cleaning and biocide application is
completed and the structure is getting professionally dried at the end
When is the most effective biocide application in a sewage remediation for achieving a sanitary state
performed? - Correct Answer -after thorough cleaning and final rinsing
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