ABSTRACT
Nonconservative characteristics of the ground water which must be measured in the field include temperature, specific conductance, pH, Eh (reduction-oxidation potential), dissolved oxygen, and alkalinity. This chapter provides an overview on the equipment and techniques used for measuring static water levels and geochemical field parameters. Obtaining static water levels in monitoring wells is necessary to determine ground water flow and may be used to determine the volume of water present in the casing for purging criteria. Water levels in uncased boreholes provide only a rough estimate of static water levels, and estimates are even more inaccurate in fine-grained material. The use of suitable gas monitoring equipment and appropriate clothing including disposable gloves, safety glasses, etc., should be addressed in the site-specific safety and health plan, which would encompass taking static water levels.
