Challenge

The Colorado River Municipal Water District (CRMWD) faced a critical challenge: ensuring a reliable emergency water supply during drought conditions. With depleted reservoir storage and rising water demands, CRMWD sought to significantly expand its well field in Ward County, doubling production capacity to meet future needs. The urgency of the project was heightened by the need to have the new groundwater supply operational quickly.

Our Solution

DBS&A provided comprehensive water resource solutions, starting with a Phase 1 test drilling investigation to assess subsurface conditions and water quality in the Pecos Valley Aquifer. Given the complexity of the local geology, our team used geophysical methods and isolated zone testing to map variations in total dissolved solids (TDS) and chloride concentrations throughout the well field area. The subsequent design phase involved overseeing the construction of 21 new supply wells in the Ward County North well field.

Our experts developed multi-screen well designs based on the region’s variable subsurface lithology, ensuring the wells met specific water quality goals. We conducted thorough pumping tests, including 14-hour step-drawdown and 36-hour constant rate tests, to evaluate well efficiencies and inform groundwater model development. In addition to well design and construction oversight, GLA provided pump specifications, equipment procurement support, and integrated the system with the well field’s SCADA system.

Results

Through careful planning and fast-track execution, GLA helped CRMWD meet the critical deadline. The new wells were completed on time and within budget, exceeding the production target by 100%. This expansion not only doubled CRMWD’s water supply capacity but also ensured the new wells met all water quality standards, providing a sustainable, reliable water source in times of drought.