Lead and Asbestos Testing and Operations and Maintenance (O & M) Programs

In the course of performing an environmental site assessment (ESA), insulation suspect of being Asbestos Containing Materials (ACM) or paint suspect of containing lead may be encountered. Laurel can collect samples of suspect ACM and have them analyzed for percent asbestos using USEPA Method 600/M4-82-020 polarized light microscopy. Analysis of paint for percent lead content can be done either on-site with x-ray fluorescence, typically when large areas are to be sampled, or with samples being analyzed by atomic absorption.

Laurel staff has been at the forefront of lead and asbestos abatement assistance. Our in-house staff are qualified with New York State Asbestos Handler's licenses and New York City Asbestos Inspector's licenses. Our Lead Inspectors have training under the USEPA's model lead inspection curriculum, complying with all applicable requirements of Title IV of TSCA, USEPA Title 40 CFR Part 745, OSHA Title 29, CFR Part 1910.1025 and Part 1926.62, NYC Health Code Section 173.14 and HUD Guidelines. Sampling of paint and suspect ACM is conducted as described in the Lead Paint and Asbestos sampling section.

Risk analysis is conducted to determine the threat to human health in buildings with confirmed lead paint or ACM. Based on this analysis, we recommend removal or Operations & Maintenance (O & M) as appropriate. When an O & M is indicated, Laurel can design and implement the program.

Removal or encapsulation becomes necessary when there is a significant threat to the health of permanent or occasional occupants of a building. We can obtain quotes from several abatement contractors, present the bids and provide the third party monitoring for the removal or encapsulation project.

Job References

Our clients include small, medium and large financial institutions, insurance companies, REITS, law firms, industry, and governmental agencies. References are available upon request.

Services Include:

Site History Review

determine what hazardous substances may have been present

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review of federal, state and local databases

determine if the subject site or any sites up to a one mile radius of the subject site are listed

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A site specific study

of the pertinent geologic, hydrogeologic conditions and hydrologic data found at the site

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Written report of findings

clearly lay the groundwork for additional study, if warranted.

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If contamination is discovered, LAUREL can design and optimize an economical mitigation plan that is environmentally sound. In some cases, early implementation of a proactive remedial strategy will permit a property transaction to move forward while a clean-up is in progress.

Phase II Soil / Groundwater Testing

When there is suspicion of contaminated soil or contaminated groundwater at a site, sampling and analysis must be completed to confirm the presence or absence of the suspected contaminants. This is achieved through the installation of groundwater monitoring wells and sampling of soil from cores.

The validity of the results obtained through this sampling relies heavily on the proper placement of monitoring wells and soil borings, though the placement is largely subjective. It is therefore important for a highly skilled scientist to conduct research on site history and visual reconnaissance in formulating a plan, and final decision of proper placement of the monitoring wells and borings to obtain relevant samples.

Whenever possible, LAUREL makes every effort to limit costs, damage to property and especially disruption of business, through the use of the latest state of the art drilling and sampling equipment available.

DATA COLLECTION

Correct media sampling methods are just as important as proper well installations and sampling point decisions. Utilizing the correct sampling equipment and decontamination techniques, LAUREL ensures that no cross contamination has occurred. Without exception, only properly trained and certified staff collect samples.

SOIL BORINGS AND MONITORING WELL INSTALLATIONS

When there is suspicion of contaminated soil or contaminated groundwater at a site, sampling and analysis must be completed to confirm the presence or absence of the suspected contaminants. This is achieved through the installation of groundwater monitoring wells and sampling of soil from cores.

GROUNDWATER/SOIL SAMPLING AND ANALYSIS

Groundwater depths and product thicknesses are determined using an oil/water interface probe. Wells are developed using a bladder pump, to a turbidity (a measure of the silt present in water) of 50 nephelometric units (NTU's), or less to ensure proper hydraulic connection with the surrounding aquifer.

DRINKING WATER SAMPLING AND ANALYSIS

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SLUDGE
SAMPLING

LAUREL has found that septic systems, and industrial and storm water leaching pools are often receptors of significant contamination at any given property. By design, these systems leach as much water as possible into the ground.

GEOPHYSICAL SURVEYS

LAUREL conducts geophysical surveys to aid in the discovery of underground storage tanks, buried drums, fill material, unexposed drywells and large scale subsurface hydrocarbon contamination with no excavation or drilling necessary.

BROWNFIELD REDEVELOPMENT

When there is suspicion of contaminated soil or contaminated groundwater at a site, sampling and analysis must be completed to confirm the presence or absence of the suspected contaminants. This is achieved through the installation of groundwater monitoring wells and sampling of soil from cores.

The validity of the results obtained through this sampling relies heavily on the proper placement of monitoring wells and soil borings, though the placement is largely subjective. It is therefore important for a highly skilled scientist to conduct research on site history and visual reconnaissance in formulating a plan, and final decision of proper placement of the monitoring wells and borings to obtain relevant samples.

Whenever possible, LAUREL makes every effort to limit costs, damage to property and especially disruption of business, through the use of the latest state of the art drilling and sampling equipment available.

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