circuit breaker panel

I don't know much about electrical wiring. I recently moved to this house and found out that the water pump for the well is constantly running pumping water. The water pump is in the shed and the shed gets flooded as a result. Since I have no use for the well water, I want to shut it down this way because there seems to be no switch attached to the well pump.

FYI, #2 is for heat, #4 for basement lights #6 for well pump and #8 for dryer.

Thank you, k_buz and frenchelectrician !!

After reading your comments, I went to the basement and looked around. The labels on the panel door (not shown in the picture) were indeed mislabeled. I found two separate sheets describing the breakers in two panels (main and sub).

According to one sheet the two breakers controlling the well pump were indeed on the left side. I just switched off those two corresponding breakers. Since it is raining heavily outside now, I will check the well pump tomorrow morning, but I am confident that my problem is solved now.

Thanks again.