I have pond thats 2 acres with construction completed this past August. The water has been the color of coffee with cream (less than an inch of visibilty)since it started filling. It reached full pool about three days ago and had been frozen from a cold snap we had here in Ohio. I went out today to see what it looks like at full pool and the water had at least 18 inches of visibility. Didn't do an official secchi disk, but looked to be 18inches, with a light green hue to the water. Question to any weekend water chemists or knowledgeable folks. What happened???? And do you think the coffee with cream colored water will come back? I was all set to get a water test and put gypsum or alum in depending on the results to clear the water. Any insight would be appreciated. Maybe it was a Festivus miracle!