Join The Discussion

 

T&P Warehouse: Historic building remains in limbo as area redevelops

For years, the historic T&P Warehouse on West Lancaster Avenue downtown, built in 1931 to house freight for the Texas Pacific Railway, has sat vacant and deteriorating.

read more >

Susan Halsey, Fort Worth attorney, business leader, dies

Susan Halsey, a Fort Worth attorney who was also a community and business leader, died on Friday, Dec. 19. Halsey, 55, was chairman for the Fort Worth Chamber of Commerce in 2013-2014, leading the chamber during a year

read more >

Heating up: West Lancaster corridor projects moving forward

West Lancaster Avenue through downtown Fort Worth is heating up, with planners envisioning a lively mixed-use corridor that extends the central business district further south.

read more >

Meridian Bank Texas parent acquired by UMB Financial for $182.5M

Kansas City, Mo.-based UMB Financial Corp., the parent company of UMB Bank, said Dec. 15 it has signed a definitive agreement to acquire Marquette Financial Companies in an all-stock transaction.

read more >

Cousins Properties to sell 777 Main tower in downtown Fort Worth

Cousins Properties Inc. has confirmed plans to sell the 777 Main office tower in downtown Fort Worth, according to a news release from the Atlanta-based real estate investment firm.

read more >

Man-made wetlands lessens dependence on rainfall, TRWD says
EMILY SCHMALL, RAMIT PLUSHNICK-MASTI,

Associated Press

FAIRFIELD, Texas (AP) — 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 enduring prolonged drought.

At $75 million, the wetlands system cost far less to build than traditional filtering infrastructure and has piqued the interest of planners from places as far afield as Mexico City and Baghdad, where bombs destroyed the water infrastructure. And with climatologists predicting longer and more frequent droughts worldwide, the wetland system greatly reduces the pressure on water utilities and their reliance on precipitation.

"This is stepping back from dependence on rainfall," said David Marshall, head of engineering services for Tarrant Regional Water District, which operates the wetlands. "With potential climate change or long-term droughts, we're at risk, whereas these wetlands firm up a tremendous amount of water supply for us."

The technology behind the George Shannon Wetland Water Reuse Project has been around for decades, but only recently proved reliable and cost efficient.

It reroutes Trinity River water — which in July was mostly treated wastewater that entered the waterway 100 miles upstream — into large pools where the sediment settles, Darrel Andrews, the water district's environmental director, said. From there, it passes through areas abundant with ragweed, hackberry and other plants where many water birds roost. Along the way, microbes and plants filter out the nitrates and phosphorous from the water, which is eventually released into the reservoir.

The George Shannon wetland, which was built over a former Texaco oil field, provides about 30 percent more water to the reservoir than it would otherwise hold — a boon to its 1.5 million users in North Texas.

Although the Fairfield wetland is a hedge against climate change and more frequent dry spells, communities elsewhere in the U.S. have been turning to wetlands for ecological solutions to other problems.

For example, Bloomington, Illinois, is using man-made wetlands to address water quality, not quantity. The community has long struggled with potentially hazardous levels of nitrates in its public drinking supply. So it turned to farmers, whose fertilizer-laden fields helped create the problem, for help.

John Franklin's family has been farming in the small, agricultural community of Lexington, two hours south of Chicago, since 1848. Their land sits in the watershed that feeds one of Bloomington's reservoirs.

The area was once covered in marshes and wetlands, and was too wet to effectively farm. So Franklin's ancestors and others found the only way to make the land productive was to quickly drain excess water.

But after more than a century of bountiful corn and soybean crops, high levels of nitrates, which can cause oxygen deficiencies in infants and "dead zones" in bodies of water where nothing can live, have been found in municipal drinking supplies.

Rick Twait, Bloomington's superintendent of water purification, and other officials decided to focus on the 72,000 acres of watersheds that feed the city's two existing reservoirs. Working with The Nature Conservancy, the University of Illinois and others, wetlands of various sizes were placed in farming fields — including Franklin's.

The goal was to reduce nitrates by 50 percent. Ten years later, the numbers are encouraging and doable: only about 2.6 percent to 3 percent of an agricultural field needs to be wetlands to achieve effective filtration, said Maria Lemke, an aquatic ecologist with the conservancy who oversees the research.

Franklin received federal funding to transform part of his family's 1,200-acre farm into a wetland.

"It had to be done. We're all in the same watershed. Everything we do upstream affects everybody downstream," he said.

But with corn and soybean crops fetching record prices, it has been difficult to find others willing to take land out of production. A few, though, are participating and once there are enough wetlands, the city will have a natural filter that doesn't require energy to operate and needs minimal maintenance, Twait said.

"It's basically on call all the time," he said.

Plushnick-Masti reported from Houston.

 

 

 

< back

Email   email
hide
TCU/Baylor
Did the College Football Playoff Committee get it right?