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3 ACCESS TOOLS

3.5 PORTABLE IN-SITU GROUND WATER SAMPLERS/SENSORS

3.5.2 Passive Multilayer Samplers


Use: Sampling for vertical distribution of volatile ground water constituents. Samplers are used in both portable and fixed (see Section 3.6.3) configurations.

Description:

Sampling occurs passively through natural diffusion of ground water so no pumping or displacement of water in involved (purging is not required).

Analytes:

1. Non-Halogenated VOCs 3. Halogenated VOCs

Media:

Soil: Ground Water: Surface Water: Gas/Air:
Not Applicable MINIMUM Not Applicable MINIMUM
Maximum Depth: Up to 100 feet.
Production Rate: Sample is available after a short amount of time.
Investigation Derived Waste Volume: Small volume of waste.
Technology Status: Commercially available technology with moderate field experience.
Certification/Verification: Technology has not participated in CalEPA certification and/or CSCT verification program.
Relative Cost per Sample: Least expensive.

Limitations:

ASTM Standards/EPA Methods:

No applicable ASTM standards or EPA methods are cited for this technology.


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