Name: Guernsey Reservoir water-level time series
Creator: Lakebrief

Question 1

What is the current water level at Guernsey Reservoir?

Accepted Answer

Guernsey Reservoir's current water level is shown at the top of this page, sourced from USBR RISE catalog item 395 and updated continuously. The 7-day trend, full-pool comparison, and a multi-year history chart are all on this page.

Question 2

What is the full pool elevation for Guernsey Reservoir?

Accepted Answer

Guernsey Reservoir has a full pool elevation of 4420 ft (NGVD29). Surface area at full pool is 2,400 acres.

Question 3

How is Guernsey Reservoir's water level measured?

Accepted Answer

Water-surface elevation for Guernsey Reservoir is measured by USBR RISE catalog item 395. Lakebrief polls the upstream feed continuously and renders the latest reading, recent trend, and multi-year context.

Question 4

What is the historical low water level for Guernsey Reservoir?

Accepted Answer

The lowest recorded modern elevation for Guernsey Reservoir is approximately 4370 ft. The low-water advisory threshold for the dashboard is 4400 ft.

Guernsey Reservoir water level