They will be required by your lender if your Realtor writes them as a condition of the contract. On bank owned properties, the bank will typically not pay for either one. If the well is used only for irrigation, most buyers don't have them tested in North County. However, if it is the only source of water, you should test for potability as well as production. The test does not make sure there is proper separation of the well and septic as has been suggested. That was determined prior to either being installed. Since they haven't moved, they don't need to be remeasured. In regular sales, both are typically asked for and paid for by the seller, but that won't work for bank owned or even short sales. You can ask for it, but if another buyer doesn't ask for it, their offer may be chosen over yours. What did your Realtor advise you to do? They are in a better position to offer advise since they have more information of your particular circumstance. We can only offer general advise. Best of luck to you!