Well, we can't measure the recharge rate from here, either. If you know the original well driller, they usually keep records of flow rate, etc. on their work, so you may call them and ask. Otherwise, open a faucet and let the water run to find out.

I have let the water run for hours; I don’t know if that’s the recharge rate or if I haven’t exhausted the storage. I will, however, check with the original well driller, from 8 years ago.

If you let the water run for hours you're probably all right.