Yikes, thats a high bill. Hope you can find the leak. Are neighbors close enough to steal electricity? That happened to a friend of mine, neighbors hooked up to them. Our meter readers use a digital thing here, never have to get out of truck, but it didn't require getting new meters. We have a well pump with 5 houses on it. It has its own meter, during the summer the bill will get up to $80 when everyone is watering the gardens and playing in sprinklers, and during the winter it will be around $30. Occasionally I will have everyone not use water and see if the pump still turns on to check for leaks. Thats only if the bill seems to be getting too high. Good luck!