On 9 Apr 2007 17:05:39 -0700, "Chuck Gould"
wrote:

fertilizer get washed into the watershed by equally enormous amounts
of wasted water. The enriched runoff water fosters a lot of microbes
that die off and use oxygen when they decompose.

We have two lakes in my immediate area right now that are being
subject to fertilizer use for land owners. The lakes are so overgrown
with aquatic weeds (non-invasive) that you can't even start your boat
or move ten feet without fouling on the weeds.

The talk is that one of the lakes is going to be completely drained,
stripped of weeds, allowed to sit for a year, then refilled.

Pretty drastic and all because of overdevelopment of the shore line.
Beautiful lawns, crappy lake.