Field Logging of Water Well Borehole Cuttings
Groundwater professionals from many different backgrounds are tasked with describing sample cuttings from boreholes drilled for water wells. Water well boreholes can be drilled for hydrogeologic investigations or production wells. Drilling contractors, hydrogeologists, and engineers, all of whom have varying backgrounds and training in the describing of hydrogeologic systems, are tasked with producing borehole logs that are incorporated into the permanent hydrogeologic record. However, there are few water well professionals who have been trained in describing cuttings from water well boreholes. The result is that borehole logs that are produced are inconsistent and in many instances are so poor that they cannot be interpreted for hydrogeologic assessment where important hydrogeologic data could have been collected.
Students will use the Hydrogeologic Classification System for Water-Well Boreholes (HCSWB) to log a suite of drill cutting s and select filter pack and slot size for a municipal water-supply well. The HCSWB provides a concise menu driven format that ensures basic information is recorded, yet allows enough flexibility for describing unique hydrogeologic features. The HCSWB will help document unconsolidated sediments so the relative hydraulic conductivities can be accessed based on grain size and location of significant water-producing zones that are observed during drilling.
This workshop is limited to 40 people. You must indicate your intention to attend on the registration form. The additional registration fee is $45.00 and includes the publication.
Johnson Screens, Durango, CO
