Proper disposal of unused or old pesticides is important for protecting people, wildlife, and the environment. According to guidance from the University of New Hampshire Extension, improper disposal—such as pouring pesticides down drains, into storm sewers, or onto the ground—can contaminate water supplies and harm beneficial organisms. These actions may also violate environmental laws.
The first step in disposing of pesticides is to read the product label for specific storage and disposal instructions. “Always start by checking the product label. It will include specific instructions for storage and disposal. Follow them closely,” states the University of New Hampshire Extension.
Empty pesticide containers should not be reused, even for non-chemical storage, because residue can remain and cause harm. If immediate disposal is not possible, it is recommended to keep pesticides in their original containers with labels intact and store them securely away from food, children, and pets.
Throwing pesticides in the trash or pouring them down household drains is unsafe and often illegal. Instead, certified programs such as Household Hazardous Waste (HHW) Collection Days or licensed hazardous waste vendors are recommended options for safe disposal. The University of New Hampshire Extension provides a resource to find local HHW collection events: Find Household Hazardous Waste collection events here (PDF).
For those seeking private services, companies like Maine Labpack Inc., Triumvirate Environmental Inc., and New England Disposal Technologies Inc. offer assistance with pesticide disposal.
Farmers or agricultural producers can use the Lakes Region Hazardous Product Facility for pesticide disposal after making prior arrangements. The process involves making a list of products (including size and condition), contacting Sara Silk at 603-651-7530, and scheduling pickup while discussing applicable fees that are often lower than standard commercial rates.
Additional help is available through several resources: “Division of Pesticide Control – Call (603) 271-7788 for more information on safe pesticide disposal.
Local Household Hazardous Waste (HHW) Program – They can help you find drop-off sites or upcoming events.
Local Extension Office – Your local extension office is a great resource for region-specific guidance and safety tips.”
