![Massive Man-made Wetlands System Treats Wastewater](https://cole-tpomag.imgix.net/https%3A%2F%2Fwww.tpomag.com%2Fuploads%2Fimages%2Fgeorgeshannonwetlands.jpg?crop=focalpoint&fit=crop&fp-x=0.5&fp-y=0.5&h=620&ixlib=php-1.1.0&q=75&w=1024&s=37cba838b4d569ae60ab583e40c41896)
At first glance, the George Shannon wetlands system resembles most other low-lying marshes where water birds roost in old oaks and pelicans wade across shallow ponds. However, the 2,000-acre wetland system in Fairfield, Texas, has a secondary purpose: It slowly converts...