From LRNow:

Excess nutrient run-off is a serious water quality problem in the Lynnhaven River.  It leads to excess algae which clouds the water and eventually leads to decreased levels of oxygen and possible toxins from algal blooms.  We experienced these algal blooms in all of our local rivers, including the Lynnhaven, this summer.

A variety of methods can be used to slow and reduce run off from properties. A rain barrel is one way to reduce the amount of water entering the river through the storm water system.  Lynnhaven River NOW and Mike?s Rain Barrels are offering a Rain Barrel Workshop on February 23rd from 10:30-12:00 at the Maintenance Office of the Bayville Golf Course, 4137 First Court Road, Virginia Beach. The cost of this workshop is $45 (includes materials for one rain barrel) and the class is limited to 15 people.