A stream buffer is an area along a waterway where development is restricted and the removal of vegetation is prohibited.
- The primary functions of stream buffers are to physically protect and separate a stream, lake or other waterway from future disturbance or encroachment.
- To filter pollutants from stormwater runoff such as dog waste. Yes, dog waste is a pollutant and disposing of it properly makes for healthy streams!
- Reduce flooding and erosion, acting as a right-of-way during floods.
- Provide shade and nesting for birds while moderating water temperatures for aquatic life.
Steps for Healthy Stream Buffers
Following these simple steps will do wonders for your backyard stream buffer.
- Remove invasive plant species. Common invasive species include Chinese Privet, Devil’s Horsewhip, and Alligator weed. Check or notify your local government for additional help.
- Plant the right trees for your stream and other native species! Planting trees is delicate business. You will have to get to know your stream, but don’t be discouraged!
Knowing the answer to questions such as how often your stream floods or when it dries will determine what trees or native plants will survive.
To get started take a look Backyard Buffers, Planting Trees along Your Stream: A Survivor’s Guide, and Trees Planting Guide at Arbor Day Foundation.
- While caring for these new additions, never use fertilizer near the stream or in ditches. As we’ve mentioned, while stream buffers do filter out fertilizer and pesticide pollution from stormwater runoff, they stand little chance against a direct dose of pollutants.
State Regulations – Georgia Erosion and Sedimentation Act
The Georgia Erosion and Sedimentation Act (12-7-1) requires a 25-foot vegetated buffer along all state waters and a 50-foot vegetated buffer on state-designated trout streams. A variance may be obtained from this law under certain circumstances, upon application to the Georgia Environmental Protection Division (EPD). CRK actively monitors buffer variance applications and investigates citizen complaints of potential buffer encroachment violations. Many local governments have additional buffers in local ordinances.
Federal Regulations – Army Corps of Engineers
While protection of stream buffers is regulated by the state, a stream channel itself is protected by federal regulations. If there’s going to be any dredged or filled material placed within that stream channel, then a Section 404 permit must be applied for and obtained through the Army Corps of Engineers (Corps). The Corps has nationwide permits for activities with “minimal” impacts and individual permits for activities with substantial impacts.
City of Atlanta Guide to Re-vegetation pages 4 through 7 include a detailed list of species native to the Georgia Piedmont area while page 8 lists invasive plant species: City of Atlanta Riparian Buffer Revegetation Guidelines.