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 & Regulatory Council)… Continue Reading »
Solinst Double Valve Pumps Download Technical Bulletin Double Valve Pumps can provide high quality, representative groundwater samples. However, to get the best quality samples from your pump, it is critical to understand how the Double Valve Pump works and how to operate it properly. Double Valve Pump Operating Principles When a Double Valve Pump is submerged,… Continue Reading »
Low Flow Sampling Since 1996, low flow sampling has become an increasingly approved method for obtaining high quality groundwater samples. Through the work of Puls and Barcelona, the US EPA released standard operating procedures for low flow sampling (EPA/540/S-95/504). Following such guidelines ensures the collection of samples that are representative of actual in-situ conditions. Low… Continue Reading »
Solinst Bladder Pumps give defensible data due to consistent, high quality samples in all types of applications. They provide both time and cost savings. Continue Reading »
A project manager’s aim for groundwater sampling is to collect samples that are representative of actual in-situ conditions, maintaining sample integrity. Continue Reading »
Download Newsletter Background Gruppo Egeo, the exclusive distributor of Solinst products in Italy, recently worked with a client with very specific groundwater sampling requirements. Their client Tecno Habitat, an engineering company specializing in the environment, has the task of investigating the vertical distribution of tetrachloroethylene (commonly known as PCE) in the groundwater at an abandoned… Continue Reading »
HydroTerra, exclusive distributor of Solinst products in Australia, was recently given the task of providing three CMT Multilevel Systems to an alumina refinery in Queensland, Australia. The groundwater monitoring program at the refinery includes monitoring one 7-channel and two 3-channel CMT Systems, and also biannually sampling 90 groundwater monitoring wells located in and around the… Continue Reading »
Solinst Model 407 Bladder Pumps and Model 408 Double Valve Pumps have a lot in common. Both are pneumatic pumps, both are excellent for providing representative groundwater samples, and both are widely used for low flow and VOC sampling. On the outside, Solinst Bladder Pumps and Double Valve Pumps look almost identical – but internally… Continue Reading »
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 Your sampling frequency: portable or dedicated equipment Characteristics of the… Continue Reading »
Download Newsletter What is a Discrete Interval Sampler? The Solinst Model 425 Discrete Interval Sampler (DIS) is a “no purge” instrument, designed to obtain representative groundwater samples from a specific sampling zone without the need for purging. It is a stainless steel sampler pressure activated using a hand pump. We’ll discus how it actually works… Continue Reading »
