Is the black silt in a beaver pond good fertilizer?

Question

My garden is sandy soil. Can the silt at the bottom of a former beaver pond good to mix with my garden soil. It is fine, black silt.

Answer 1

The only way to really know what it's nitrogen levels would be, would be to have it tested.

https://www.gardeningknowhow.com/composting/ingredients/pond-scum-garden-fertilizer.htm