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Independent Environmental Consultants
Asbestos, Mold Lead Paint, Bacteria, Water Intrusion
Solving Structural Environmental Issues
Tucson, Flagstaff, Kingman, Maricopa County, Phoenix, Scottsdale, Anthem, Ahwatukee, Apache Junction, Avondale, Buckeye, Carefree, Casa Grande, Chandler, El Mirage, Fountain Hills, Gila Bend, Gilbert, Glendale, Goodyear, Guadalupe, Laveen, Litchfield Park, Maricopa, Mes, Paradise Valley, Peoria, Sun City, Suan City West, Sun Lakes, Sun City Fiesta, Surprise, Tempe, Tolleson, Youngtown, Queen Creek, Waddell, Yuma, Quartzite, Payson, Globe, Gold Canyon, Prescott, Cottonwood, San Tan
Westlife Environmental LLC -
Is it possible to identify mold without sampling and its inherent costs?
That really depends on the circumstances involved in the project being evaluated.
The determining factor in this is usually whether an identification of species is
required or not (due to health or legal concerns). If a suspected impact area is
determined to have growth present, but identification of the specific species or
family is required -
However, most projects do not require that mold be speciated (in the onset of the
project), only that it be noted to be present and requires removal. In these cases,
a visual identification may fulfill this need -
In an effort to fulfill my promise to my clients to be mindful of their financial
commitment during a project, I would much rather see the expenses of lab processed
determinations be applied to the PRV (Post Remediation Verification) portion of a
project. There -
Sampling methods used
on a mold project
Airs Sampling -
We use a pump to draw air through a sampling cassette to trap spores and microscopic pieces of mold structure to determine the elevation of the counts available in the air being sampled. We compare the results from any interior sample to results taken in an exterior “benchmark” sample to determine whether the result warrant a “Pass’ or a “Fail”.
Surface Swabs -
We utilized two basic types of surface swabs in sampling.
One is a swab of the cleaned surfaces that is sealed and sent to the lab for processing.
The other is an ATP Swab -
The lab processed swab provides a quantitative result -
An ATP swab provides a qualitative result. This type of sample will return positive
Because an ATP Swab provides immediate results -
Plated Samples -
This type of sample is taken on a media plate (just like in high school biology class). If we are looking for a specific species or family of mold, we can use a type of media in the plate to promote THAT type of mold to grow. The sample is incubated by the lab and the resulting growth tells us the species of mold(s) that is/are viable (able to grow) in the sampled airs space.
Tape Lifts -
This is a method of taking a sample from a very limited spot for lab returned results. Westlife uses this method reservedly because of its limitations to provide a true picture of a large surface area.
There are additional sampling methods that are little used, but may be used to fit a specific task at hand when needed.
Moisture Metering -
EVERY area of a remediated project is first sampled for moisture content before any of the previously mentioned sampling is performed. We want to know that all materials have been returned to their normal moisture levels before investing our client’s funds in any cost producing samples.
The type of samplings we perform are determined by the type and accuracy of the results we are looking for, and the costs involved in obtaining those results.
We can’t always opt to use the cheapest methods, because that method may not provide the results required to best serve our client (for an MD, in a sale, or in court, etc) . Westlife will always discuss our sampling tactics, costs and results with our client, and we will always receive our client’s permission before we begin sampling.