Heath Hydrology Inc., in cooperation with Hydrologic Systems Analysis, LLC. of Golden, Colorado, uses the standardized Hydrologic Systems Analysis (HSA) to offer "cutting edge" regional and site-scale hydrologic characterization, and conceptual and mathematical modeling of hydrologic systems.
HSA, with emphasis on ground water and surface water resources, watersheds, wetlands environments, and ecosystems, is used in support of water resources
management, expedited environmental site characterization and remediation, watershed and ecosystem characterization, management, and restoration, and natural and mineral resources utilization planning and design.
HSA is geo-based, scientific, systems-oriented, multidisciplinary, and multi-scale, and incorporates the usage of both field and laboratory methods, and the usage of computer and mathematical modeling tools, elaborate data management systems, Geographical Information Systems (GIS), and advanced visualization technology to solve environmental and natural resources development and management problems (See Figure). HSA is described in ASTM standard D5979.