Hydrologic System and Groundwater Discharge

The video tutorial covers a seepage investigation conducted by USGS in northeastern Arizona, focusing on Clear Creek, Shevlin Creek, and the Little Colorado River. It explains the concept of base flow, which is stream flow resulting from groundwater discharge, and highlights the importance of measuring discharge to understand the water budget and aquifer connections. The tutorial also discusses the significance of water quality parameters in understanding the hydrologic system of the C aquifer.

What was the primary purpose of the seepage investigation conducted by USGS Arizona Water Science?

• To assess the impact of tourism on the region

• To measure the depth of the Little Colorado River

• To study the wildlife in the area

• To provide baseline information about groundwater discharge

What is the term used to describe stream flow resulting from groundwater discharging to a river?

• Reservoir flow

• Base flow

• Aquifer flow

• Surface flow

Which geologic unit is primarily responsible for the groundwater discharge observed in the seepage investigation?

• Coconino sandstone

• Limestone

• Granite

• Basalt

What challenge was faced during the stream discharge measurement at Clear Creek?

• Lack of equipment

• Inadequate water flow

• Non-ideal measuring section

• Excessive rainfall

Why is it important to measure base flow at multiple locations along a stream?

• To identify fish species in the stream

• To calculate the stream's speed

• To determine the stream's length

• To develop a detailed snapshot of water entry and exit

What factors are likely to change the amount of base flow entering and leaving a stream over time?

• Increased tourism

• Groundwater development and climate change

• Urbanization

• Deforestation

What is the purpose of measuring water quality parameters alongside seepage measurements?

• To determine the water's color

• To assess the water's taste

• To understand the sources and pathways of water

• To measure the water's depth

Which parameter is NOT typically measured during the water quality assessment in the seepage investigation?

• Specific conductance

• Water depth

• pH

• Temperature

What is the significance of comparing current base flow investigation data with previous and future data?

• To predict future weather patterns

• To measure the stream's width

• To identify new water sources

• To track changes in groundwater discharge over time

What is the main goal of understanding the hydrologic system of the C aquifer?

• To improve agricultural practices

• To increase fish population

• To better manage water resources

• To enhance recreational activities