I have two tanks one is 750 gallons and another 1000 gallons. At one of those tanks water is coming up out of the ground. We dug up the site of the water and that tank is completely full. We are trying to figure out what is causing this. Is there something wrong with the leach bed? Or just a clog somewhere after those tanks? Can someone please help me?

Is there something wrong with the leach bed? Or just a clog somewhere after those tanks? That's a good question because you just put your finger on the only two things it could be, Perhaps a drain field guy could come up with another solution but if it were me I'd start digging up the tank discharge line to the bed. If the leach bed's dry then there's a clog in the line, If the bed's loaded with water then you'll have to move the bed. Good luck, Tom