Deere & Ault previously conducted historic consumptive use analyses for 103 farms acquired by the City of Thornton, provided groundwater modeling, conducted Poudre River basin modeling, provided raw water system planning, and provided litigation support for water rights applications as part of Thornton’s Northern Water Supply Project.
The engineering studies included an historic consumptive use analysis and return flow analysis for irrigation water applied to each of the 103 farms acquired by the City of Thornton.
Deere & Ault conducted a phased study of groundwater and surface water flow regimes and interactions in the Lower Cache la Poudre River basin. The study consisted of groundwater modeling, including analysis of existing and projected water quality impacts. Our staff installed and designed monitoring wells, conducted aquifer tests, compiled surface and subsurface geologic data, constructed isopach structure contour and potentiometric surface maps, and implemented a detailed data base management system.
Deere & Ault also conducted a project completion study to determine the most efficient way to deliver water from the Poudre basin to Thornton. The Project Completion Study involved:
- determining project yields,
- assessing present and future water demands,
- determining project components,
- estimating project costs, and
- developing an augmentation plan.
Deere & Ault’s staff provided litigation support, including extensive expert witness testimony during the 55-day trial. A decree was awarded to Thornton that will provide an average annual raw water supply of 56,800 acre-feet.
Client: City of Thornton, Colorado
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