Hydrologic modeling is the process of simulating or estimating the behavior of the water cycle components (such as evapotranspiration, infiltration, runoff) and their impact on surface and groundwater resources over a specified area and time. It involves the use of mathematical equations and computer models to simulate the various components of the hydrological system. This specialized skill requires knowledge of hydrology, engineering, and numerical methods as well as proficiency in hydrologic modeling software. The results of hydrologic modeling can be used for a wide range of applications, such as flood forecasting, water resource management, water quality assessment, and climate change impact assessment.

Stream restoration involves the application of specialized skills and techniques to improve the health and functionality of degraded or damaged streams. This may include activities such as stabilizing stream banks, restoring natural flow patterns, and reintroducing native vegetation and aquatic species. It requires expertise in hydrology, geomorphology, ecology, and engineering, as well as knowledge of local regulations and permitting requirements. Stream restoration is typically undertaken in partnership with stakeholders such as landowners, community groups, and government agencies.

Surface Water Modeling refers to the simulation and analysis of surface water flow and distribution within a given area, utilizing mathematical and computational techniques. This skill encompasses the understanding of hydrological processes, watershed characteristics, and the impact of land use on water movement. Knowledge of Surface Water Modeling is used to assess flood risks, manage water resources, and inform environmental planning by predicting how water interacts with the landscape under various conditions.

Total Maximum Daily Load refers to a regulatory framework used to determine the maximum amount of a pollutant that a water body can receive while still meeting water quality standards. This skill involves assessing pollutant sources, analyzing water quality data, and establishing limits to ensure the protection of aquatic ecosystems and public health. Knowledge of Total Maximum Daily Load is applied in the development of pollution control strategies and in the management of water resources to achieve compliance with environmental regulations.

Water Resources refers to the management and allocation of water supply for various uses, including agricultural, industrial, and domestic purposes. This skill encompasses the understanding of hydrology, water quality, and environmental impacts, enabling effective planning and sustainable use of water systems. Knowledge of Water Resources is used to develop strategies for water conservation, flood control, and the protection of aquatic ecosystems, ensuring the availability of clean water for current and future generations.