Hi Georgia Pond:
I don't know about lawn care in Georgia. But here in our homeowners assn. we have just banned the use of any fertilizer with phosphorus. We are promoting reduced applications (of course you have to stay way back from the lakes like 15 ft) to avoid the run-off into the water, and want reduced number of treatments with slow release nitrogen products used. We are also suggesting a core aeration in place of a fertilizer treatment. Will be interesting if water testing of the water coming in through the storm drains comes out any better this year than last year. The slope in your photos looks like it just slopes right to the water, ever considered native plants in place of the grass?