Ohio 7, April 1, 2023

Groundwater-Capture Trench to Aid Response

By Caroline Clauson 88TH AIR BASE WING PUBLIC AFFAIRS

One line of effort is being set in stone, clay and gravel at WrightPatterson Air Force Base (WPAFB), where an army of construction workers and machines are digging a 420-ft.long trench toward a way to environmental progress.

The project targets the hazardous materials storage facility on Area B, which accidently released a firefighting agent called aqueous film-forming foam (AFFF) containing per- and polyfluoroalkyl substances (PFAS) on two occasions in 2008 and 2011. Officials said the fire-suppression system at this facility used an earlier version of AFFF before EPA identified PFAS for possible health risks. The released AFFF soaked into the soil and entered the ground and surface water near the site.

The constructed trench will intercept impacted groundwater, and a downgradient-collection basin will catch affect-

ed surface water so it can be treated before it’s discharged near the Dayton drinking water wellfield.

The 2-ft.-wide trench extends about 30 ft. below ground surface, reaching all the way down to bedrock, according to Ed Coggin, technical director of the water engineering group at Weston Solutions LLC, the contractor awarded the project in 2021 as part of the U.S. Army Corps of Engineers’ Rapid Response Program.

As groundwater seeps out the trench’s sides, gravity will pull it down through the gravel fill material and into a slotted pipe, preventing groundwater from migrating further from the site. Next, the collection pipe will convey the water to a sump at the trench’s low point. Finally, a pump installed in the sump will send 15 to 25 gal. of water per minute to the downgradient-treatment system, which will use a special type of organically engineered clay to filter out PFAS.

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April 1 2023 Vol. XVII • No. 7

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U.S. Air Force photo by Hannah Carranza A worker drives an excavator Nov. 21 toward a pile of gravel at Wright-Patterson Air Force Base, Ohio. Environmental Protection Agency officials survey the work site Nov. 22 at Wright-Patterson Air Force Base, Ohio. A 450-ft. trench construction project in Area B is under way to help remove substances previously used in firefighting from groundwater.

ODOT Is Launching Record $2.5B Construction Season

The Ohio Department of Transportation announced that it expects to invest a record $2.5 billion into more than 1,000 projects during this year’s construction season to improve transportation and make Ohio’s roads safer across the state.

“There is no better place to be than right here in Ohio, and these new projects will

ing serious or deadly crashes. More than 5,700 mi. of pavement will be improved, and 823 bridges will be repaired or replaced.

“These investments are made possible by hard-working Ohioans who use these roads and bridges every day to get to work, school, medical appointments and family vacations. It is our duty to ensure the resources entrusted to us are used wisely,” said ODOT Director Jack Marchbanks.

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help us keep our infrastructure in a good state of repair,” said Gov. Mike DeWine. “Everyone in our state benefits from safe roads, and I am looking forward to seeing the end results of this year’s roadway improvement projects.”

This year’s construction program includes 31 new projects that are considered “major” with a value above $10 million. There are 190 safety projects aimed directly at reduc-

This construction season isn’t all about building new roads. About 95 cents of every dollar is being invested back into preserving existing roads and bridges.

It is important for motorists to pay extra attention when driving through work zones. According to the Ohio State Highway Patrol, there were 4,628 work zone-related crashes in Ohio last year, 21 were deadly resulting in 23 deaths and 85 involved serious injuries. Summit County recorded the most in the state with 814 work zone crashes. June is the top month for work zone crashes (585) with Wednesday being the top day (833). Most occur between 3 – 5 p.m.

In 2022, there were 133 ODOT crews (workers, vehicles and equipment) struck while working along Ohio roadways.

“These workers are out there ensuring that your travels are as safe as possible. They just ask for your attention and patience in return,” said Marchbanks.

Ohio’s Move Over law requires drivers to move over a lane for vehicles with flashing lights. If drivers cannot safely move over, they are required to slow down. 

Page 2 • April 1, 2023 • www.constructionequipmentguide.com • Ohio State Supplement • Construction Equipment Guide

The Ohio Department of Transportation announced that it expects to invest a record $2.5 billion into more than 1,000 projects during this year’s construction season.

Construction Equipment Guide • Ohio State Supplement • www.constructionequipmentguide.com • April 1, 2023 • Page 3

Trench Intercepts Groundwater, Helps Remove Contaminants

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“The intercepted groundwater will be combined with captured surface water from the drainages south and west of the storage facility,” said Greg Plamondon, the WPAFB remedial project manager of the site. “All accumulated water will then be treated by a series of passive pretreatment and primary treatment beds before being discharged to the base stormwater network. This system will effectively reduce the concentrations of PFAS leaving the base.”

The Ohio EPA holds a direct stake and role in WPAFB’s water remediation, overseeing the project to ensure it meets state and federal regulations.

“We are very supportive of taking early actions like this that Wright-Patterson Air Force Base is doing,” said Bonnie Buthker, chief of the Ohio EPA’s southwest district office. “By installing this trench and collecting the contaminated groundwater and the rainwater from this particular site, they’re preventing that contamination from impacting Dayton’s production wells and also base production wells.”

Slated to finish the site-remediation treatment system by the end of next summer, the project team is employing a host of equipment to do the heavy lifting, starring the large DeWind “one-pass” trencher.

“We like yellow iron,” Coggin said. “The main piece of equipment is the trencher itself; it really drives the whole thing.”

The Area B project is the first of two to use the USACE Rapid Response Program for PFAS remediation, which features fast preparation, initiation and funding for time-sensitive environmental needs. Solutions at the current and former fire-training locations on Area A are in the works as well.

“I’m just really excited that we’re getting to do something,” Crocker said. “It’s nice to be breaking ground.” 

Page 4 • April 1, 2023 • www.constructionequipmentguide.com • Ohio State Supplement • Construction Equipment Guide

U.S. Air Force photo by Hannah Carranza A 3A worker uses an excavator Nov. 21 to prep a gravel pile at Wright-Patterson Air Force Base, Ohio.

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Western Specialty Installs New Pad for Packaging Machine

Western Specialty Contractors’ Cleveland branch recently installed a concrete equipment pad to support Tap Packaging + Design’s newest printing machine.

The industrial printing facility has been based in the Cleveland area for nearly 120 years. Located in a 208,000-sq.-ft. modern production facility, Tap offers a variety of equipment and services from graphic and structural design to printing, converting, inventory management and fulfillment.

Western contracted with Tap in August 2022 to install the 13 by 33 ft. 2-ft.-thick concrete pad, according to engineering specifications, for a large printing machine that prints beer cases and packaging for other consumer products.

Because the plant operates 24-hours-a-day, Western’s craftsmen utilized an electric mini-excavator and other electrical equipment to minimize fumes and noise while digging a trench in the plant’s 5-inch-thick concrete floor for the new pad.

Western’s craftsmen then created a foundation to pour the 5000-psi concrete mix using #6 rebar running both directions every 12 in., with hook bars at the end of each run to create a pair of rebar mats.

Western completed the project in October 2022, on time and within budget and has plans to install concrete pads at the plant later this year for three additional pieces of machinery.

For more information, visit westernspecialtycontractors.com. 

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Western Specialty Contractors photo Western Specialty Contractors photo Western’s craftsmen utilized an electric mini-excavator other equipment minimize fumes and noise while digging a trench in the plant’s 5-in.thick concrete floor for the new pad. Western Specialty Contractors photo Western Specialty Contractors’ Cleveland branch recently installed a concrete equipment pad to support Tap Packaging + Design’s newest printing machine.