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 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 sampling relies heavily on the proper placement of monitoring wells and soil borings, though the placement is largely subjective. Therefore, it is important for a highly experienced scientist to conduct research on site history and visual reconnaissance in formulating a plan to produce a final decision for the proper placement of monitoring wells and soil borings. Following these important steps will ensure relevant samples are collected.

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

In the case of underground storage tanks (USTs) that are suspected of leaking, Laurel may elect to utilize a Geoprobe™ to collect soil, soil vapor, and groundwater samples. The use of this machine reduces the overall costs by allowing the collection of samples from more locations in a given period of time, with minor damage to paved areas in comparison to other types of equipment. The Geoprobe™ is useful at depths of up to one hundred feet. The drill rig utilizes a hollow stem augur to set larger wells including 2 inch and 4 inch diameters.

Should there be a need for deeper wells, such as into the Magothy aquifer, or when drilling into bedrock, a drill rig utilizing an air rotary hammer is employed. This rig can easily handle drilling at depths of up to five hundred feet.

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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