Did the report have a big note at the bottom that said: "This water in non-drinkable."?

Those are very high levels of sodium and chloride! Have you tasted the water from the well? If so, I suspect it tasted very salty.

SOME salt added to a pond is usually beneficial to the fish. However, if you supplement your pond during a drought with water from that well, then I believe you will quickly go past beneficial and reach harmful.

My chemistry background is quite dated, and my "pond" chemistry background is almost non-existent. However, you should be able to find some publications about the upper limits of sodium and chloride in a fishing pond. (I don't think you need to worry about the bicarbonate, that will just act to buffer any pH swings.)

P.S. Do your neighbors have wells for drinking water and household use on their properties? Can you ask one for their water analysis? Sometimes an entire shallow aquifer can be salty due to contact with actual salt deposits in the subsurface. However, if you are the only one with salty water in that aquifer, then you may have a local source of pollution. Are there any old oil wells on your property or nearby? An improperly plugged oil well is the most common cause of saltwater intrusion into freshwater aquifers in Texas.