Freese and Nichols, in conjunction with RW Harden & Associates, assisted the City of Altus with an evaluation of the City’s Round Timber well field for water supply. The project team evaluated the existing infrastructure, well field supply and water quality, and provided an assessment of the viability of this site to provide a reliable water supply to Altus.
Field tests were conducted on two wells as part of the study, including a 24-hour pump test to assess the hydraulic characteristics of the aquifer and water quality samples were collected from each well. The data from the field tests were used to assess the condition of the existing well field and the long-term reliability of the groundwater supplies.
Water quality testing confirmed the presence of nitrates above the drinking water standards and the presence of coliform. Freese and Nichols evaluated three alternatives to address the water quality issues:
treatment at the Altus water treatment plant
treatment at the Well Field using ion exchange
treatment at the delivery point for the southernmost customers
Capital costs were developed for each treatment alternative and to rehabilitate the existing well field and infrastructure. These options, along with an assessment of the uncertainties, were provided to the City.