Envco – Environmental Equipment

The Model 660 Profiler is designed to allow collection of samples from multiple points in a single drive/drilling location, at discrete zones. It allows:

• contaminant vs. depth profiling
• detailed plume delineation

The Profiler has a 1.75" (45 mm) dia. AW stainless steel tip with one row of screened inlet holes set circumferentially. The inlet holes lead to a single stainless steel, LDPE or Teflon® sample line which attaches to a pump, typically a Peristaltic Pump.

Operation
Profiling can start at ground surface, or to save time it can begin at the bottom of a pre-drilled hole.

To avoid downward drag and cross contamination due to driving, the Profiler system is flushed with deionized water using a Peristaltic Pump, while it is being driven between sampling zones. When the desired depth is reached, the pump flow is reversed. The resulting water flow is monitored for clarity and conductivity. This can be done using Flow-Through Cell When all deionized water is purged from the system and the conductivity has stabilized, the sample is taken. If sampling for volatiles using the Peristaltic Pump, it is advisable to collect samples in-line, ahead of the pump to avoid the stripping of volatiles from the samples. For this the Solinst VOA Bottle Filler, Model 470 can be used.

After sampling, the water flow is reversed and once again deionized water is used to flush the Profiler and keep it from clogging during driving. Tests have proven virtually no drag down if correct procedures are followed.

Ordering Information
101928 AW version
101225 AW SS Grout Tip version
100643 AW Replacement Grout Tip
102353 4mm x 2.5mm LDPE tubing