Layer Park Site
June 2017 Update
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.
As part of U.S. EPA's health and safety plan for this site, the Agency collected personal air samples from the work crew at the beginning of excavation activities. All results were non-detect for lead. The Agency is collecting air samples around the perimeter of the work zone, and all samples have been non-detect for lead. U.S. EPA is also performing continuous air monitoring at the perimeter of the work zone to measure fugitive dust and all levels are below the site action levels.
Planned Response Activities
U.S. EPA’s action plan for the Layer Park site includes excavating lead-contaminated soil up to two-feet deep in certain areas of the park found to exceed EPA standards for lead and arsenic. The lead-contaminated soil will be removed off-site to licensed landfill. The excavated area will be backfilled and seeded. The Agency will replace trees in consultation with township and county officials. These actions will protect park users from coming in direct contact with contaminants in the soil. EPA will also repair/replace any infrastructure damaged during the cleanup, e.g. basketball court, park entrance and parking lot.
EPA is monitoring the air and controlling dust by spraying water on the soil throughout the course of the cleanup to ensure the safety of workers and the surrounding community. Also, soil stockpiles are compacted as much as possible to reduce dust release. EPA plans to use stockpile liners to keep the soil stockpiles covered when not actively being used, i.e. not loading trucks or not adding more soil, or after work hours. The work area is guarded by a contracted security service during non-work hours.
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 approximately $3 million dollars.
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.
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