AWWA ACE65619

This paper summarizes results from a recent study completed by Johnson County Special Utility District (JCSUD) and HDR Engineering entitled "Evaluation of Additional Water Supplies from the Trinity and Brazos River Basins", which identifies five potential future treated and raw water supplies in the Trinity Basin and three options for Lake Granbury's Surface Water and Treatment System (SWATS) system improvements, expansions, and/or purchasing unused system capacity to provide additional supplies from the Brazos Basin. JCSUD is considering additional average water supplies of 5 MGD (10 MGD maximum). Although the study focuses on potential water supplies in the Brazos and Trinity River Basins and associated planning-level cost estimates for system enhancements to integrate new and additional water supplies into JCSUD's existing system (i.e. purchasing water, water treatment (if needed) and additional transmission facility costs), the conceptual approach and discussion of various water supply alternatives can be used as a decision-making framework for other water providers that are confronted with similar issues of increasing water demands in high growth areas, over-drafted groundwater supplies, water quality considerations, multi-basin water supply management, and regional cooperation challenges. Includes 6 references, tables, figures.