cleanup · Genesee County
Lapp Insulator Company
Le Roy
Approximately 66-acre electrical-insulator manufacturing property active since 1917. DEC records document oils and chlorinated solvents in defined soil and groundwater areas; cleanup has included excavation, in-situ treatment, covers, sub-slab systems and long-term groundwater management.
The documented story
What happened here?
Electrical-insulator manufacturing began at the Le Roy property in 1917. The approximately 66-acre complex produced ceramic insulators and transformer bushings; portions remained in industrial use after transformer-bushing production ended in 2004.
Historical operations used oils, petroleum products and chlorinated solvents. DEC divided the complex into investigation and treatment areas so documented source zones, groundwater conditions and occupied buildings could receive different controls.
Electrical infrastructure began with ceramics, oils, and solvent-intensive manufacturing
Lapp Insulator has operated in Le Roy since 1917 while defined source areas moved into long-term management
1917year electrical-insulator manufacturing began
1917-2004
Ceramic production supported the expanding electric grid
Lapp manufactured insulators and transformer bushings across a large industrial campus. Transformer-bushing production ended in 2004 while portions of the property continued in industrial use.
2009-2014
The remedy separated source areas from occupied buildings
DEC selected a multi-part remedy, excavated chlorinated-solvent source soil, applied in-situ treatment, and used covers and sub-slab systems where continued occupancy required additional protection.
Long-term phase
Groundwater monitoring follows the regional flow setting
The site-management plan tracks generally eastward groundwater flow and residual solvents while maintaining covers, vapor controls, land restrictions, and monitoring.
Chemical guide
Chemicals named in this record
These links explain potential hazards and exposure pathways. A chemical named in a record does not establish that anyone was exposed or harmed.
Chronology
Timeline
- 1917
Ceramic electrical-insulator manufacturing began at the property.
- 2004
Transformer-bushing production ended, while other industrial use continued on portions of the complex.
- 2009
DEC issued a Record of Decision selecting a multi-part remedy.
- 2014
Chlorinated-solvent-affected soil was excavated in identified source areas.
- Long-term phase
Groundwater monitoring and management continue under the site-management plan.
Environmental record
Documented impacts
- Chlorinated volatile compounds, including TCA, TCE and PCE, affected soil or groundwater in defined areas.
- Historical oils and petroleum products contributed additional industrial source concerns.
- Groundwater monitoring documents generally eastward flow toward Oatka Creek, but that direction does not prove that all creek conditions originated at this property.
Response
Cleanup and controls
- Selected source soil was excavated and disposed of off site.
- In-situ chemical treatment addressed chlorinated compounds in portions of the subsurface.
- Covers, sub-slab systems, institutional controls and continuing groundwater monitoring manage residual conditions.
Then and now
The site today
The property remains a managed industrial cleanup site. Its large footprint does not mean every part of the property has the same condition or remedy.
Atlas connections
Connected places
These collections explain documented material, facility, waterway, ownership, or cleanup relationships. Inclusion does not imply that every place shares one contaminant source or plume.
Genesee County industrial and disposal sites
Municipal disposal, scrap-metal processing, and railroad transport provide three different views of Genesee County's documented cleanup history.
The landfill received industrial wastes before its federal cleanup, deletion, and continuing stewardship.
Scrap and metal processingBatavia Iron and MetalThe Bank Street site adds a Class 2 industrial cleanup within the City of Batavia.
Railroad releaseLehigh Valley Railroad DerailmentThe Le Roy site shows how rail transport created a different kind of historical contamination record.
Manufactured-gas plantBatavia Former Manufactured Gas PlantThe Evans Street gasworks adds Batavia's nineteenth-century energy infrastructure and its coal-tar cleanup record.
Electrical-insulator manufacturingLapp Insulator CompanyThe large Le Roy property documents a separate history of ceramic manufacturing, chlorinated solvents and long-term groundwater management.