Tag: no-purge sampling

Review Of No-Purge Groundwater Sampling

Download Technical Bulletin Changes in legislation, combined with improved and lower cost sampling instrumentation, have encouraged consultants, researchers, and government agencies to obtain higher quality groundwater samples.  No-purge, also known as passive or grab sampling, is one method that is gaining acceptance by many regulatory agencies for obtaining representative groundwater samples.  The ITRC (Interstate Technology… 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 »