The Georgia Department of Natural Resources’ board of directors is set to vote Tuesday on loosened water quality standards for Lake Lanier. The state Environmental Protection Division, which falls under the DNR, is looking to increase the amount of chlorophyll-a allowed in samples to 6 parts per billion from 5 parts per billion at its Flowery Branch testing site and 7 parts per billion from 5 parts per billion at its Browns Bridge Road site. Chlorophyll-a concentrations indicate the amount of algae in water.