Project Description: SGC was retained by the City of Chandler Public Works Department to provide production well testing, and construction management services for seven (7) high capacity municipal water supply wells. SGC hydrogeologists inspected all drilling and testing operations and finalized screen locations following analysis of drill cuttings, downhole geophysical logs, and zonal water quality samples. The most critical objectives were to minimize the concentrations of undesirable water quality constituents while maintaining the production design criteria. Water quality results at one of the wells prompted studies to identify zones producing elevated concentrations of nitrate. The remedial investigation and design included: spinner logging, packer tests, and cementing off portions of the well screen. All seven wells were successfully completed.