On this page:

• Cleanup Status
• Site Description
• Contaminants at this Facility
• Site Responsibility

Cleanup Status

Roche previously removed underground storage tanks, replaced and upgraded broken sewer lines, removed contaminated soil, and monitored the groundwater.  The facility installed and operated a groundwater recovery system for about 10 years. The system removed and treated contaminated groundwater under a New Jersey Department of Environmental Protection (NJDEP) permit. Because of a decrease in groundwater contamination at the site, Roche stopped the use of the system and monitored the groundwater.

A Preliminary Assessment and Remedial Investigation are underway at the site. The work is being conducted under the New Jersey Department of Environmental Protection (NJDEP) property transfer program. Some areas require additional assessment of potential contamination. Other areas are undergoing sampling to determine the nature and extent of contamination. Areas of contamination will require cleanup, primarily soil contamination.

Site Description

DSM Nutritional Products, Inc., formerly Hoffman-LaRoche (Roche) Belvidere is located on Manunka Chunk Road in White Township, New Jersey. The site occupies approximately 500 acres in Warren County. The facility has been manufacturing vitamins since 1961. Land use in the vicinity of the site is predominantly agricultural, but also includes residential and undeveloped areas.

Contaminants at this Facility

Contaminants at the facility include polycyclic aromatic hydrocarbons, petroleum hydrocarbons, and metals, including arsenic, nickel, lead and antimony.

Site Responsibility at this Facility

The facility is being cleaned up pursuant to a remedial action cleanup agreement between the New Jersey Department of Environmental Protection (NJDEP) and Hoffman-LaRoche that was implemented in 2003.