FIGURE 1. The area hydrologically defined by a watershed is affected by many processes and issues. A “watershed approach” coordinates their management.
What is the Watershed Approach and Why are We Using It?
A “watershed approach” uses hydrologically defined areas (watersheds) to coordinate the management of water resources. The approach is advantageous because it considers all activities within a landscape that affect watershed health. Ideally, a watershed approach will integrate biology, chemistry, economics, and social considerations into decision-making. It considers local stakeholder input and national and state goals and regulations. A watershed approach recognizes needs for water supply, water quality, flood control, navigation, hydropower generation, fisheries, biodiversity, habitat preservation, and recreation; and it recognizes that these needs often compete. It establishes local priorities in the context of national goals and coordinates public and private actions. A watershed approach offers a blueprint for water resource management.
A comprehensive watershed approach improves on the fragmented approach the nation has used in the past. The United States has developed separate laws for clean water, clean air, fertile soils, productive fisheries, healthy forests and robust communities. It created separate agencies to administer those laws at federal, state, and local levels and on public and private lands. These agencies have different missions, authorities, and modes of operation. The property boundaries of landowners and the political boundaries of states, tribes, counties, and municipalities are often unrelated to watershed boundaries. As a result, when citizens or governments have tried to coordinate water resource protection or restoration efforts, they have often found it difficult to do so. Evidence suggests that the watershed approach improves collaboration and information sharing among diverse partners and leveraging of resources.
(Protecting and restoring America’s Watersheds, page 10, USEPA publication EPA-840-R-00-001, dated June 2001)
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