State still investigating after excess cement dust from plant covers McKinney neighborhood

Dust covers a car in the McKinney Greens neighborhood.

Dust covers a car in the McKinney Greens neighborhood.

One week after cement dust covered patios, lawns and cars in a McKinney neighborhood, state officials said they are still investigating the cause.

Officials confirmed it was cement dust released from concrete plant Martin Marietta, located along SH 5 in McKinney, sometime between July 18 and July 19. Much of the dust released fell in the McKinney Greens neighborhood located across from Martin Marietta.

For years, residents in the area have expressed concerns about dust and noise coming from Martin Marietta and two other industrial plants along Hwy. 5.

Texas Commission on Environmental Quality officials said they have not received information from the plant that details how much was released on July 18 and July 19. TCEQ regulates what is called particulate matter that gets released from the plant.

“Based on the information the TCEQ [Dallas-Fort Worth] Region has received to date, cement dust was released from one of the silos at Martin Marietta,” spokesperson Marty Otero said in an email to Community Impact Newspaper on July 26.

Because cement dust is corrosive, people should avoid direct contact with it, according to TCEQ’s Toxicology, Risk Assessment and Research Division. According to an email from TCEQ, “Once the dust is removed, this event is not expected to represent a long-term concern.”

McKinney Greens resident Don Pizarro said cleaning crews came to his home July 26 and an additional crew is scheduled to clean his property July 31. Pizarro said there were 11 people cleaning the interior of his home. Crews also power-washed the exterior of his home, washed the windows twice and provided him with coupons for a car wash, he said.

Pizarro said this is a 24-hour issue in his neighborhood because when the wind blows, cement dust from the trees and nearby golf course fall on residential properties.

A spokesperson for Martin Marietta said TCEQ visited the ready-mix concrete plant July 19, and operations at the facility will remain closed until a cause is determined. The investigation is ongoing as of July 26.

“We will work with the TCEQ to investigate what happened,” Amanda Miller, director of government affairs and public relations for Martin Marietta, said in an email on July 19. “Additionally, Martin Marietta has retained a company to clean up the material that was released, and the plant will remain shut down until we can determine the cause of this release and remediate it.”

Additional comment from Martin Marietta was not available.

Michael Quint, McKinney’s executive director of development services, said the city is working with Martin Marietta and TCEQ. He said information from TCEQ will not be available until the state entity’s investigation is complete, however, there is no timeline for completion.

Residents are encouraged to visit for more information.

Community Impact Newspaper will continue to update this story as more information becomes available. 

Editor's note: This article has been updated to include additional comment from a McKinney Greens resident.
By Cassidy Ritter
Cassidy graduated from the University of Kansas in 2016 with a degree in Journalism and a double minor in business and global studies. She has worked as a reporter and editor for publications in Kansas, Colorado and Australia. She was hired as senior reporter for Community Impact Newspaper's Plano edition in August 2016. Less than a year later, she took the role of editor for the McKinney edition.


The McKinney ISD board of trustees approved a request for qualifications for architectural services for the elementary school at its Sept. 22 meeting. (Elizabeth Ucles/Community Impact Newspaper)
McKinney ISD begins first steps to build new elementary school

Demographic projections indicate the district will need a new elementary school at the start of the fall 2023, according to MISD officials.

A few changes are being proposed to the McKinney's master thoroughfare plan. (Hunter Marrow/Community Impact Newspaper)
McKinney City Council to consider updates to master thoroughfare plan

The master thoroughfare plan provides general locations for future streets and roads in McKinney.

Findings from the Throckmorton statue advisory board will be made in late October. (Miranda Jaimes/Community Impact Newspaper)
Throckmorton statue advisory board findings expected to be presented Oct. 20 to McKinney Council

The resolution also provides for the advisory board to give presentations to the council.

Funnel cakes, milkshakes and more were available at Avalanche Dessert Lounge in McKinney. (courtesy Avalanche Dessert Lounge)
Avalanche Dessert Lounge in McKinney announces closure, citing COVID-19

In the meantime, the dessert lounge will continue to operate at its regular hours and offer a variety of sweets and treats.

Not-for-profit agencies in Collin County can submit invoices for personal protective equipment to the county for reimbursement. (Courtesy Fotolia)
Collin County to reimburse housing and shelter not-for-profits for some coronavirus costs

Collin County plans to reimburse not-for-profit organizations that provide housing and shelter services for costs they have accrued assisting citizens during the coronavirus pandemic.

Zom Living has sold Kinstead McKinney Apartments to a fund sponsored by CBRE Global Investors. (Courtesy Zom Living)
Kinstead McKinney Apartments sold to fund sponsored by CBRE Global Investors

Kinstead comprises six three-story buildings along SH 121 with 376 units.

Main Street Food Hall is expected to open in Frisco in 2021. (Courtesy Bryan Brickman)
Food hall coming to Frisco in 2021 and more DFW news

Read the latest business and community news from the Dallas-Fort Worth area.

A special election to fill the Texas Senate District 30 seat is being held Sept. 29. Early voting is ongoing until Sept. 25. (Courtesy Adobe Stock)
Early voting for Texas Senate District 30 special election continues

Early voting for the Texas Senate District 30 special election continues until Sept. 25. Election day is Sept. 29.

Phenix Salon Suites will open a location in McKinney in November. (Courtesy Phenix Salon Suites)
One of Hub 121’s first shops, Phenix Salon Suites, readies to open in McKinney

The business will offer 34 suites for salon professionals.

The total number of active COVID-19 cases in McKinney is at 150 as of Sept. 18. (Community Impact staff)
Tracking COVID-19: 166 new cases reported in McKinney in past week

As of Sept. 18, there have been 2,207 confirmed total cases of COVID-19 and 2,021 recoveries in McKinney.

Amaretto Cake is among the cakes, cupcakes and cookies that Rum Cakes Factory sells. (Courtesy Rum Cakes Factory)
Rum Cakes Factory opens in Plano and more DFW news

Read the latest business and community news from the DFW area.

Arthritis is one of the conditions treated at Allay. (Courtesy Adobe Stock)
Allay Spine and Pain Management now open on Lake Forest Drive in McKinney

The business is headed by Dr. Douglas Maxey and offers a variety of therapies.