Chattahoochee Riverway BacteriALERT project List of people to answer your questions
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Background information about this project Background information you need to better understand what the BacteriALERT data means Sponsoring agencies Info about the locations where bacteria are being sampled Common questions and answers Facts, figures about the Chattahoochee River View the bacteria data

BacteriAlert Program


NEW!  BacteriALERT information is also available via phone at 678-538-1201

Background:   How safe is it to swim, wade, and boat in the Chattahoochee River today? For a highly urbanized river such as the Chattahoochee, much of the answer depends on bacteria levels in the water. This website provides recent E. coli bacteria counts and National Park Service health advisories for two locations on the Chattahoochee River (map).

Go to a page describing the sampling sites

Information:
Medlock Bridge site
Paces Ferry site

Real-time streamflow:
Go to real-time info for station 02335000 Medlock Br. site
Go to real-time info for station 02336000 Paces Ferry site
Go to real-time info for station 02336490 Ga 280 site
Go to real-time info for station 02337170 Fairburn site

Understanding BacteriALERT data.Important concepts to understand:
Understanding data
Find out about the bacteria

Important note:E. coli predictions and prediction intervals are inaccurate when water released from Buford Dam exceeds 2,500 cubic feet per second for periods longer than 4 hours.

View chart of stage and streamflow at Buford Dam 		 
E. coli bacteria counts and National Park Service health advisories for the Chattahoochee River

Chattahoochee River at Medlock Bridge Road

Most recent turbidityEstimated E. coli count *National Park Service health advisory statement *
DateTurbidity, in NTU
02/13
5:15 PM EST		 14 173 Currently, there is not a National Park Service health advisory in effect

The last E.coli water sample was taken on Thursday 02/07 at 11:33 AM Eastern Standard Time. At that time, the measured E. coli count was 41

Chattahoochee River at Paces Ferry Road



Most recent turbidityEstimated E. coli count *National Park Service health advisory statement *
DateTurbidity, in NTU
02/13
4:45 PM EST		 29 400 Currently, there is a National Park Service health advisory in effect
The last E.coli water sample was taken on Thursday 02/07 at 9:00 AM Eastern Standard Time. At that time, the measured E. coli count was 43

* National Park Service health advisories and estimated average E. coli counts are based on current turbidity values. Bacteria counts are in number of colonies per 100 milliliters (ml) of water.
Data tables E.coli data tables

Get help to understand the data tables above. Don't understand these data? Here's some help?

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The Chattahoochee River BacteriALERT project is a partnership between the National Park Service, the Cobb County-Marietta Water Authority, the Cobb County Water System, the Upper Chattahoochee Riverkeeper, and the Georgia Environmental Protection Division. Agencies and organizations playing a direct role in the Chattahoochee BacteriALERT are:
List of agencies and organizations playing a direct role in the Chattahoochee Riverway BacteriALERT

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Bacteia questions/comments? Contact Steve Lawrence
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This URL: http://ga2.er.usgs.gov:80/bacteria/default.cfm
Last updated: 01/18/2013 08:29:31 AM

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