The elevation of Twin Lake is very important when analyzing the water problem in the basement.  First, the house was built to close to the ground water table.  The City of Robbinsdale raised the water table approximately ten years after the home was built.  This is made obvious by the plot above.  The way the City did this was they drained a lake close to Twin because there were too many people having water in their basements.  Twin Lake was a newly developed area and had room to build new homes so the adjustment could be made.  The ratio was higher for dry homes on the neighboring lake, after increasing the lake level. While leading to basement flooding on Twin.  Our home was one of the houses built too far down.  It became our problem.  By monitoring the lake levels and knowing the past lake elevations one can approximate the amount of water in the basement accordingly and can plan how many gallons per minute need to be pumped out of the basement.