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By the Numbers: EGLE partnering with the Genesee County Land Bank to prepare properties with underground storage tanks for redevelopment

There are currently more than 18,000 underground storage tanks (UST) in use in Michigan, many of which will be forgotten and left in the ground long after they’re taken out of service. Removing them is one of the big steps towards redeveloping a brownfield property -- not just the tanks themselves, but the contamination many of them leave behind. EGLE works with communities to help them triage properties with known or suspected USTs and prepare to market them for redevelopment. EGLE’s partnership with the Genesee County Land Bank Authority is a great example.

 

An excavator prepares to flatten a storage tank after it was removed from the ground.

An excavator prepares to flatten a storage tank after it was removed from the ground in Flint. 

 

EGLE’s Remediation and Redevelopment Division has worked with the county since 2018 to triage former businesses owned by the Land Bank and believed to have USTs. The program has remediated 46 properties in that time, spending more than $576,000 to help prepare them for redevelopment. Many of them are former gas and service stations, which often have soil contaminated with petroleum compounds, but the list also includes everything from a dry cleaner and a funeral home to a grocery store and a baking company.

The job of removing a UST is pretty straightforward and can be illustrated by the work done at three properties in Flint in October. Crews used an excavator to remove a 700-gallon tank from a former store at 2401 Avenue A.

An excavator sits at the end of a hole where contaminated soil and an underground storage tank were removed.

An excavator sits at the end of a hold where contaminated soil and an underground storage tank were removed in Flint. 

 

Older tanks with nothing inside are often flattened on-site.

Crews will then remove any contaminated soil around the tank, digging well beyond the spot the tank occupied. The darker soil in this picture from 2401 Avenue A is contaminated with petroleum compounds. The soil is put into dump trucks with covered beds and hauled to a landfill that handles contaminated material. The hole is then filled in with clean backfill to make the site look more presentable. Further investigations will be done to see what other remediation work is needed before redevelopment can begin.

The excavation site after the hole was backfilled.

The excavation site after the hold was backfilled. 

 

Similar work was done at 2025 Avenue A, where a 550-gallon UST and a hydraulic hoist tank were removed.

A hydraulic fuel tank in Flint sits next to an excavator and the hole it was removed from.

A hydraulic fuel tank sits next to an excavator and the hold it was removed from. 

 

This project ran into a common issue: the UST was damaged and started leaking fluid as soon as the soil around it was removed. A contractor was brought in with a vacuum truck to remove 300 gallons of fluid.

An excavator removes contaminated soil from a former gas station site in Flint.

An excavator removes contaminated soil from a former gas station site. 

 

The third site was a former gas station at 4142 North Saginaw. There weren’t any USTs in the ground, but crews did remove the former dispenser island along with piping from the tank system.

Piping from an underground storage tank system after being removed from the  ground in Flint.

Piping from an underground storage tank system after being removed from the ground. 

 

The work has made all three properties, hopefully, more attractive to potential developers. EGLE offers grants and loans as well as Tax Increment Financing to help offset the cost of additional environmental remediation needed for redevelopment. Lucille James with the Genesee County Land Bank Authority says the partnership with EGLE is key for site assessment and cleanup. “We are grateful for their assistance in addressing environmental hazards on abandoned properties,” a spokesperson told MI Environment. Just another example of state and local government working to improve Michigan.

BY THE NUMBERS

2401 Avenue A, Flint

  • One 700-gallon tank removed
  • 677.4 tons of soil removed

2025 Avenue A, Flint

  • One 550-gallon tank removed
  • One 30-gallon hydraulic hoist tank removed
  • Vacuum truck removed 300-gallons of liquids
  • 1,225.63 tons of soil removed

4142 N Saginaw Street, Flint

  • Dispenser island and piping from former tank basin removed
  • 1,466.20 tons of soil removed