Klingner provided engineering services for the City of Galesburg for the evaluation of the expansion of their alluvial well field near the Oquawka, IL, Water Treatment Facility. To initiate the project, Klingner reviewed well logs and raw water quality information for the four alluvial wells and the Raney well for the evaluation. Illinois State Water Survey was contacted to acquire records of agricultural and irrigation wells in the immediate vicinity.
A geotechnical study was conducted. Klingner coordinated the drilling of four 2” diameter bore holes approximately 130’ deep. Split spoon sampling at 5’ intervals along with gradations were completed. The information was used to prepare bore hole logs for each bore hole location and sieve analysis to characterize the material layers underlying the well field location. This information was integrated into the City’s alluvial well log along with other available agricultural / irrigation well and water plant soil boring log information in the vicinity of the well field to provide a geologic profile of the underlying materials at the well field. Additionally, Klingner coordinated drilling and installation of four temporary piezometers (monitoring wells) to a maximum depth of 40’. Two (2) piezometers were retained permanently for future use. Klingner prepared permit applications for City signature and provided the associated permits to the local health department for the piezometers.
The next step was Test Well Engineering. Klingner prepared an RFP for the City to use in in bidding test well services. A list of reputable well drilling contractors was completed to receive the RFQ. The test / irrigation style was drilled to a depth of approximately 120’ with a bore hole with surface casing as needed.