by neighbor Lisa Gordon, Environmental Scientist, Water Quality Planning Branch, Water Protection Division, U.S. EPA
photos by Rebecca Kerimbaev
How well do you know the little creek that runs through our neighborhood? Why is it so small? Where does it go? Do you know where you see it again once it leaves the Parkwoods? I work on river and stream issues in the Southeast in my job as a biologist at EPA, and over the years I’ve gotten to know our little stream, as I’ve used it to teach local school kids about stream ecology. I find that I am always intrigued by how interesting a little stream can be — and how much we may not know about it! For starters, I find that this stream, in particular, is interesting simply based on where it is located. If you drive along DeKalb or College Avenues running parallel to the MARTA and CSX Railroad tracks, you are actually driving along a ridgeline — the highest point that divides different drainage systems or watersheds. (Railroads are often located along ridgelines to minimize altitude changes for the trains, so they almost always denote differing watersheds. So, when you hear the old expression that someone comes from “the other side of the tracks,” it will often mean that they are in a different watershed. This is hugely amusing to stream biologists!) This particular ridgeline, though, is actually a very significant one — it is the Eastern Sub-Continental Divide. The Eastern Sub-Continental Divide separates the watersheds that drain to the Gulf of Mexico from those that drain to the Atlantic Ocean. The Divide runs in a line from the Twin Tiers of New York and Pennsylvania along the Appalachian Mountains to the tip of Florida. It runs straight through Georgia, primarily North to South, but here, it temporarily goes East-West. The city of Atlanta sits right on top of this Divide. So what does that mean for our little creek? The significance of the location of the Divide to our neighborhood, is that our creek is a “headwater” — or the very beginning of the watershed, closest to the ridgeline. Our Parkwood neighborhood has the distinction of being the very first steward of these waters as it begins its journey to the coast.
Years ago, I mapped out the creek for projects with the kids at Fernbank Elementary. At that time, I realized that there had been some significant alteration of the creek even before it begins. When the East Lake MARTA Station was built, they needed somewhere to shuttle the stormwater from the multi-acre parking lot (photo). I was told that the drainage from the parking lot is shuttled through a culvert under Paden Circle to a large stormwater retention area, which I had never noticed before. You can see that holding area which is behind the chain link fence at the corner of East Lake and Paden (photo). The stormwater storage, if working correctly, should settle the water, slow it down, and filter out some of the pollutants coming off of the parking lot. (The most common pollutants from parking lot runoff is dripped oil, trash, and in the summer, heat. The water hits the hot asphalt and it can raise the temperature by several degrees. That can be a problem for sensitive headwater aquatic critters, who prefer the water to be cool.)
After the stormwater retention area, the water goes under East Lake Drive and emerges into our neighborhood back and to the right of the Schwartz-Goldowski home at 258 E. Parkwood Road (photo).
From the sidewalk, you can look up and see the creek coming towards the sidewalk via an open culvert (photo) and then go under E. Parkwood Road. If you stand on E. Parkwood near the round man-hole, you can hear the creek as it goes under the road.
Finally, it emerges between the houses on E. and W. Parkwood Roads. It flows along behind the houses, then it’s back under the road and into the Parkwood Park (photo). So, before it even gets to our Park it has gone through quite a bit of hydrologic alteration, including four under-road culverts.
So where does it go once it leaves our neighborhood? From the Park it goes north under W. Ponce, under Scott Blvd, and then runs along the eastern side of N. Parkwood parallel to the railroad tracks. At the end of N. Parkwood, it curves west. If you are out on a long walk, go to the very end of N. Parkwood where you’ll find a log-lined path on the right. Follow it into the City of Decatur’s Hidden Cove Park. You’ll cross a bridge and see our creek underneath (photos).
Walk along the trail to see the convergence with a small creek, which originates near the former Westchester Elementary (photo). (Both here and at Hidden Cove Park, you’ll also see an official sign indicating that high bacteria levels have been found in the creek as well.) The creeks join together, cross under the tracks and then splash over the beautiful waterfalls on The Falls Ct off of Chelsea Cir. If you’ve ever had the pleasure of seeing the McConaughey home on one of the tours, it is our little creek that drops beautifully over the Falls and into their backyard.
If you have not seen the Falls, then the most likely time for you to see our creek again is when it crosses under Vickers Drive at the very bottom of the big hill. At this point, the creek is officially considered to be Peavine Creek (photo).
(As a side note: You may have noticed that at that crossing, a home was taken down that was in the floodplain of the creek and homes were also taken down near the back of North Parkwood Road in an effort by the local government to restore the floodplain. These changes allow the creeks to come out of their banks during natural flooding — connecting the streams with the floodplain. Creeks are supposed to occasionally overflow their banks. Connectivity to the floodplain is really important to the health of the stream.)
Peavine Creek then runs between Ridgewood and E. Clifton Road, crossing Clifton near Oxford, visible at the beautiful new Burbank Park near Saba’s and Dominos (photo).
Before it crosses N. Decatur Road near Dave’s Cosmic Subs, it joins with Lullwater Creek (which has just emerged from the Druid Hills Country Club) (photo).
Then it’s onto the Emory Campus, joining with the South Fork of Peachtree Creek right before Briarcliff. (For those of you with kids at Druid Hills Middle (formerly Shamrock), Burnt Fork Creek, behind the school joins up with S. Peachtree nearby as well.) (photo)
The North and South Forks of Peachtree join to become Peachtree (photo), which then flows into the Chattahoochee River (photo). The Chattahoochee, our source of drinking water and where our waste water discharge goes, becomes the Alabama-Georgia border. At the southwestern Georgia border, the Flint and Chattahoochee join to become the Apalachicola River, which flows into Apalachicola Bay. As you play in the surf of the panhandle — know that our little creek ends up there.
So, you all know your street address — now you know your watershed address: You live on the headwaters of Peavine Creek in the Peachtree Creek watershed which flows into the Apalachicola/Chattahoochee/Flint — or ACF — River Basin. Now, for our neighbors with children at Oakhurst, Renfroe, and Decatur High…do you know the watershed address of your school? I’d be happy to map it for you should you want to know.
Hope you enjoyed reading installment #1 of this new series on our creek’s health and natural history, to be continued by Lisa Gordon and Rebecca Kerimbaev. Lisa’s been an environmental scientist for EPA’s Southeast Regional office for 23 years, working on rivers, streams, lakes, and estuary issues for the past 18 years. Right now, she’s working on a special project about addressing the effects of altered hydrology, including effects of stormwater, impoundments, dams, surface water, and groundwater withdrawals on stream ecology.
For the next installments about our creek, Lisa hopes to write about aquatic critters and about what neighbors can do to protect the health of the creek and the downstream waters. Stay tuned!
Rebecca Kerimbaev is a Georgia Adopt-A-Stream quality assured volunteer who’s received Chemical QA/QC Certification and will conduct monthly chemical and biological monitoring of our creek within Parkwood for the next year. She started collecting water quality data from four monitoring sites in June 2011 and will report results to the neighborhood as trends become visible over time. This weekend she’ll attend the Biological Monitoring Workshop for Quality Assurance in order to begin biological monitoring of our creek.