The Centennial Group of Cobb/Cherokee/North Fulton
Sierra Club National

The Centennial Group
of Cobb/Cherokee/North Fulton

Explore, enjoy and protect the planet


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Clean Water

The Sierra Centennial Group members continue to lead the way in protecting our natural resources! Members Ina Allison and Carina O’Bara, who volunteer year-round with Cobb County’s Adopt-A-Stream program, were among the recipients of a recent award from the Environmental Protection Division’s “Rivers Alive” program.  The “Rivers Alive” Awards honor the efforts of individuals and groups who are working to improve Georgia’s waterways.  Several Cobb County departments were recognized in May for their joint efforts organizing volunteer cleanups with groups like ours.  The Centennial Group is proud to have a strong contingent of Adopt-A-Stream volunteers.

In addition, we have river clean-ups once or twice a year. It's fun and rewarding!.

We work with the Cobb County Water Department on training and follow-up and report our results directly to the State EPD.


Please contact Carina O'Bara for more information regardomg the Rivers Alive cleanup program.

Please contact Ina Allison . for more information regarding the River Rendevouz.



Congratulations to Our Adopt-a-Stream Volunteers!

Congratulations are in order to all of our Adopt-a-Stream volunteers, led bt Carina O'Bara. The Centennial Group was recognized by the Georgia Department of Natural Resources Environmental Protection as the 2012 Voulunteer Extraordinary Watershed Effort.

It's wonderful to be acknowledged, not only for your hard work, but for doing something positive to save the planet.



The Adopt-A-Stream group performs chemical/biological/bacteriological stream monitoring monthly/quarterly, evaluating the water quality at three sites along Rottenwood Creek. The first is at the Palisades in the Chattahoochee National Park, the second at Life University, and the third in a members' backyard.

Participants were trained by the Cobb County Water Department, and we report the data directly to the state. This data is used by officials in a wide variety of ways within a statewide database to improve and maintain the quality of water in our streams.


Monitoring Schedule

A 2015 schedule will be published soon.

AAS site 1: Meets at the Chattahoochee National Recreation area parking lot East Palisades, south of Cumberland Mall, off US41, at 9:30AM. For more info contact: Ina Allison