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Hydrologist

A hydrologist studies the dynamic nature of water, the forces that cause water to move around, and what effects this movement has on the surrounding environment. Hydrologists examine issues such as precipitation pathways, the relationship between rainfall and runoff, and the effects of precipitation on soils and various landscapes. They are also involved in projects to determine and promote sustainable usage of water sources and water conservation.

At a Glance

Imagine standing in a new, exclusive residential development high on a ridge overlooking the river valley. You are a hydrologist for an environmental consulting firm that the city has hired to study the impact of residential development on the local environment.

Dozens of developers have approached the city for permits to build more houses along the ridge. Before the city approves more buildings in the area, it wants to ensure this community isn't negatively affecting the environment, including the river’s water quality.

The city has hired your firm's geologists, biologists, toxicologists, and hydrologists. As the team's lead hydrologist, you will be responsible for monitoring and evaluating water quality around the area to detect any changes that might result from this new community development.

As a hydrologist, you specialize in water's physical, biological, and chemical characteristics. One of your interests is how urbanization affects water resources, making this project very exciting.

First, you identify issues that might arise from residential development, such as surface runoff contamination. The houses along the ridge all have yards that slope toward the valley, so excess rainwater flows into the river when it rains.

As part of your study, you will collect surface runoff samples to analyze water quality. Each lot has a well-tended backyard, where lawns and flowerbeds are often treated with pesticides and chemical fertilizers. These chemicals can be picked up by rainwater and carried in runoff to the river.

Area homeowners also use the river for recreation. This means you’ll monitor the water carefully to ensure that rafters, swimmers, and sport fishers aren't negatively affecting water quality.

Your evaluation of the development's impact on the area’s water quality will be a significant part of the team's report to the city. It will help planners make wise decisions with respect to further residential development.

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