Londonderry, New Hampshire, ZIP code 03053, currently holds a critical environmental hazard designation due to a high concentration of hazardous waste facilities. Within a surrounding ten-mile radius, the area contains seventeen tracked environmental hazard sites, including four active locations within five miles. Prominent among these is the Auburn Road Landfill, an active Superfund site situated 4.4 miles from the center, alongside the Town Garage and Tinkham Garage sites located under two miles away.

The Environmental Protection Agency classifies the primary pollutants in this region as unspecified hazardous substances. While exact chemical profiles vary across these individual facilities, broad-spectrum industrial contaminants in this area typically include volatile organic compounds, heavy metals, and legacy solvents. Exposure to these substances, primarily through groundwater migration or vapor intrusion, can disrupt endocrine function, damage neurological systems, and elevate long-term cancer risks. The Auburn Road Landfill and surrounding facilities remain on the active National Priorities List. This indicates that remedial investigations and active remediation efforts are currently underway, but final cleanup objectives remain incomplete. Consequently, the EPA continues to monitor local groundwater plumes and soil toxicity.

Given the ongoing active status of these mitigation efforts, residents must implement localized safety protocols. Households utilizing private wells must commission annual water testing specifically screening for volatile organic compounds and heavy metals. Furthermore, residents should install certified reverse osmosis filtration systems for all potable water sources to intercept potential groundwater contaminants. Finally, homeowners should ensure proper basement ventilation and commission chemical vapor testing to mitigate subsurface vapor intrusion risks.