Associated Press: As murky water snakes through a man-made wetland between Dallas and Houston, its shallow ponds of lush vegetation slowly filter out phosphorous and nitrates until, a week later, the water runs clear as a creek into the area drinking supply.
The 2,000-acre wetland system in Fairfield converts what is mainly treated wastewater that would otherwise flow into the Gulf of Mexico into an additional 65,000 gallons per day feeding the Richland-Chambers Reservoir - a significant contribution in a state...