A Lake Lanier advocacy group plans to announce the results of an economic impact study Tuesday.

The 1071 Coalition plans to release information in a meeting set for 7 p.m. at Lake Lanier Islands' Legacy Lodge and Conference Center.

The meeting is open to the public.

"The numbers from the study show the economic values lost in 2008 when the lake was at historic lows," said Alex Laidlaw, the group's president."Attendees to the meeting will find that the impact was even greater than we anticipated as we present the full findings of the report."

The study was commissioned in 2009 to provide a quantitative measure of the economic impacts of low lake levels on counties bordering the lake, including Hall, as well as on the metro Atlanta region and the state of Georgia.

The study, funded by the 1071 Coalition, was conducted by Bleakley Advisory Group, PBS&J and Dr. Bruce Seaman.

Initial findings presented last year showed:

More than 10,000 employers are in the Lake Lanier area and most of them operate private businesses. Nearly 140,000 people work in the area.

More than 200,000 people live in the area, an 87 percent increase from 2000 and a 102 percent increase from 1990.

Some 215 area businesses employing nearly 1,900 people are engaged in marine-related, lodging, and amusement and recreation services. These businesses have estimated combined annual sales of $145.7 million.

More than 2,400 businesses are involved in home construction and related activities, employing 9,400 workers and generating annual sales of $1.1 billion.

The 1071 Coalition, which formed in December 2008, is a nonprofit organization of residents, civic group members, business leaders and others.

The group's aim is to maintain water levels in Lake Lanier so as to keep up water supply, recreation and economic prosperity, and to advocate "appropriate, science-based water releases" needed for the Apalachicola-Chattahoochee-Flint River basin.