Laurel Environmental Associates, LTD - Lead and Asbestos Testing

Lead and Asbestos Testing

Laurel Environmental Geosciences (Laurel) is at the forefront of asbestos and lead abatement assistance. Our staff are certified 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 suspect Asbestos Containing Materials (ACM) and lead based paints (LBP) is conducted as described in the Asbestos and Lead Paint Sampling section.

Asbestos Sampling is a service provided by Laurel for pre-demolition purposes or on a case-by-case basis for clientele who wish to confirm or deny the presence of ACMs in residential or commercial building materials. Samples are analyzed using USEPA Method 600/M4-82-020 Non-Organically Bound (NOB) Polarized Light Microscopy (PLM) and Transmission Electron Microscopy (TEM) analysis for bulk building materials that may consist of friable and/or non-friable samples. Should analysis indicate greater than 1% of Chrysotile, the sample is considered ACM.

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.

Risk analysis is conducted to determine the potential for confirmed ACM or LBP to present a threat to human health. Based on this analysis, we recommend abatement and/or removal measures as part of an Operations & Maintenance (O & M) Program, as appropriate. When an O & M is proposed, Laurel can assist with the design and implementation of the program.

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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