ATSDR DCHI Fenimore Landfill Site Team Addresses Health Concerns in New Jersey

Fenimore Landfill in Roxbury Township, New Jersey, is an old solid waste landfill that was reopened in 2011 to accept construction and demolition waste. Nearby residents complained of rotten egg odors caused by releases of hydrogen sulfide (H2S) gas from the landfill. The New Jersey Department of Environmental Protection (NJDEP) began treating the landfill gas, but people were concerned about possible health effects and asked ATSDR to help.


  • set up a toll-free number for people to share their health concerns and met with selected callers and other stakeholders in person in summer 2014
  • evaluated site information and data independently of other agencies involved with the site
  • answered residents’ questions about H2S and other exposures in a September 2015 draft report

ATSDR’s May 2016 Cdc-pdf[PDF – 6.54 MB] addressed public comments on the draft report and evaluated additional data collected through 2015.

ATSDR’s investigation:

  • supported local agencies – ATSDR found that the H2S levels from before any treatment occurred could harm health, so actions to treat the gases were needed
  • reassured the public – ATSDR found that health effects from H2S or other compounds produced by the landfill are unlikely, as long as the gas treatment system keeps running
  • prompted timely public health responses – ATSDR shared recommendations with local agencies while the report was being written
fenimore landfill june 2014

June 2014: Erosion and inadequate cover contributed to landfill gas formation and release

fenimore landfill september 2015

September 2015: Landfill cap drains surface water so it cant enter the waste and stimulate gas formation

Page last reviewed: April 11, 2018