Tag: 425 discrete interval sampler

Selecting The Right Groundwater Sampler

There is much to think about before selecting a groundwater sampler for your project. Here are just a few things you probably need to consider: What you are sampling for: general chemistry, volatiles, metals, etc. Type of sample you need: low/high volume, purging or grab Sampling depth Your sampling frequency: portable or dedicated equipment Characteristics… Continue Reading »

No-Purge Discrete Zone Sampling

No-Purge Discrete Zone Sampling

The Model 425 Discrete Interval Sampler is a no-purge instrument that allows groundwater sampling from specific depths, without mixing of water from different levels. The stainless steel sampler is pressurized before being lowered to prevent water from entering until the desired zone is reached, pressure is released and the sampler fills with water from the discrete zone. Continue Reading »