Tag: measuring drawdown

water table drawdown illustration

The Importance Of Measuring Drawdown

How Using a Levelogger and 101D Together Provides Essential Data What is Drawdown? Drawdown is a change in groundwater level due to an applied stress, caused by events such as: Pumping from a well Pumping from a neighbouring well Intensive water taking from local area Seasonal declines as recharge rates lower How is Drawdown Measured?… Continue Reading »

solinst bladder pumps for low flow groundwater sampling

Best Practice Low Flow Methods For High Quality Samples

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 »