I just talked to Mike on the phone.
He's been talking about filling in the small lake for a couple of years but it was a costly project, especially the heavy equipment to move it around, that he just couldn't afford. Now that they are digging retention ponds for a subdivision across the street from the lake, he has the chance to get the dirt he needed free of charge and they will dump it where he needs it. He hopes to be able to open the lake in a couple of weeks, although it may only be on Sundays when the dump trucks aren't running since they may not be through dumping by then.
As for the rumors of bad water quality, a test was done a while back that was borderline but still safe. He was told he didn't need to close the lake. He's concerned about this rumor and will have another water test done before re-opening the lake.
Mike's never been anything but accommodating to the divers so let's give him the benefit of the doubt that he'll have the lake up and running soon with everyone's health and best wishes in mind.