| Below EPA Threshold | Over EPA Threshold | % of passing | # of failing | # of times sampled |
|---|---|---|---|---|
| 23 | 11 | 67.60 | 32.40 | 37 |
The Mobile Bay Watershed encompasses 65% of the land area for the state of Alabama, along with portions of Mississippi, Georgia, and Tennessee. On average, 33.5 trillion gallons pass into Mobile Bay annually, making it the fourth largest drainage basin in North America. Mobile Bay is the endpoint for the Mobile, Tombigbee, Black Warrior, Alabama, Coosa, and Tallapoosa Rivers. The watershed is a vast network of more than 250 separate waterways. The waterways that flow toward Mobile Bay form the Mobile-Tensaw Delta, a 40-mile-long braid of rivers and bayous that spreads over cypress swamps, bottomland forests, marshes, and bogs. The expansive Delta is considered one of the most biologically diverse ecosystems in North America – “North America’s Amazon.” It opens into the northern end of Mobile Bay in an area called Five Rivers, which consists of the Mobile, Spanish, Tensaw, Apalachee, and Blakeley rivers. The area of Battles Wharf, also called Battles, is a narrow stretch of Bayfront with long, deep lots accessible by shell-paved lanes. Homes in the area date back to the 1840s and have traditionally served as summer retreats for residents of Mobile, Alabama. Battles Wharf was placed on the National Register of Historic Places on April 28, 1988.
