Layer Park Site
August 2017 Update
EPA actions in the park this summer included:
- Excavation and disposal of approximately 5,725 tons of lead-contaminated soil
- Soil cleanup at one residential property
- Backfilling excavated area with clean material and topsoil
- Reparation of fencing that had been temporarily removed
- Ensuring that the final property grade was properly draining and returned to the original condition
- Road inspection for any damage caused by the Removal Action
As part of EPA's health and safety plan for this site, the Agency has collected air samples around the perimeter of the work zone, and most samples have been non-detect for lead. Several samples were positive for lead, but below any site action level. EPA has also performed continuous air monitoring at the perimeter of the work zone to measure fugitive dust, and all levels were below the site action levels. A water truck was used to help control dust, and a stockpile liner was used to cover the piles of contaminated soil awaiting disposal.
EPA is working closely with Miami Township and Montgomery County representatives to determine the final restoration of the park. Accordingly, it has been determined that the basketball courts will be re-installed and an estimated 50 trees will be replaced in the excavation area.
EPA is managing this cleanup under its short-term response program, referred to as a Superfund Removal Action, under its emergency authority. The cleanup is expected to cost close to 1.75 million dollars.
Planned Response Activities
The following activities will occur in the fall of 2017 (September-November) depending on weather:
- Hydro seeding of the excavation area
- Tree replacement
- Replacement of the basketball courts
- Resurfacing of the parking lot
Layer Park is bounded to the north by residences on Bushwick Drive, to the south by residences on Polo Park Drive, to the south and east by the Miami Valley Hunt & Polo Club and to the west by residences on Polo Park Drive and Cordell Drive. See Site Map(PDF) (1pg, 5.4MB, About PDF) A former skeet shooting range used to operate from the Miami Valley Hunt & Polo Club in the 1930s to the 1950s. A portion of the shooting range eventually became Layer Park. An unknown quantity of lead was deposited on the surface of the soil from skeet activities. Old aerial photos show two skeet-shooting stations were located on the grounds of the Miami Valley Hunt and Polo Club south of the park.
The western half of the park contains a baseball diamond and basketball courts. The eastern half is wooded and contains a shelter, playground equipment and picnic tables. The entire park property is fenced and was closed in January 2016 when the township learned of the presence of lead contamination.
Based on the results of 2016 sampling by US EPA and Ohio EPA, cleanup will be done on about 2 and a half acres of the 7-acres site. EPA assessed the site to determine the extent of lead contamination on the site and to determine if it is in excess of EPA's standards—referred to as Removal Management Levels for residential soils. View a copy of the Removal Assessment Report (PDF) (102pp, 16MB, About PDF).
U.S. EPA and Ohio EPA investigators determined contamination varied widely over the 7.5-acre park. Officials found lead concentrations at up to 60 times the safe level in some sections of the park and a residential yard. Arsenic was not found in the yard, but levels of the chemical were discovered in the park at three times the health threshold.
Miami Township closed the park in January 2016 after being informed of the lead contamination. Ohio EPA asked U.S. EPA to take over the cleanup in April 2016. See Ohio EPA Referral Package to U.S. EPA (PDF) (61pp, 7MB, About PDF )
The cleanup by U.S. EPA's short-term removal program will remove the threat to public health and the environment posed by the presence of lead and arsenic in surface soil in the park and nearby property.
Earlier Response Activities
U.S. EPA actions in the park this spring included:
- Tree-cutting in the contaminated area of the park,
- Tree-chipping and removal from the site for recycling (700 cubic yards of mulch),
- Securing thirty tons of good timber for lumber (pallet wood),
- Removal of the tree stumps from the cut down trees,
- Mobilization of EPA on-scene coordinator, contractors, and equipment to the site – including site set up and surveying of the ground to make sure it has the original slope for drainage after the work is done,
- Excavation of lead-contaminated soil from a residential property and the adjoining portion of the park and replacement with clean soil,
- Beginning of excavation in the eastern half of the park.
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