Text a photo →
Haulers

Household hazardous waste in Dennis, Massachusetts

Paved municipal lot with orange cones and folding tables holding paint cans and garden chemicals beside a large arena building

Dennis's collection days and where they are

Dennis residents use the Barnstable County program, run by Cape Cod Cooperative Extension. In 2026 the Dennis collections were Saturdays June 6, August 1 and September 5, 9 a.m. to 1 p.m. at Tony Kent Arena, 8 South Gages Way. All three have passed. The county says the 2027 schedule will be posted in spring 2027, so there is no posted date to plan around today.

Proof of residency is required, and non-residents are told to visit the website to register. That matters for a second-home owner or an heir clearing a house, so ask the county what proof it accepts. Questions go to the county line, 1-800-319-2783.

What they take, and what they refuse

The Dennis card lists paints, garden chemicals, cleaners, auto fluids, pool chemicals and mercury items and says it does not take unknown materials or medical waste. The county's wider list adds oil-based paints, stains, thinners, pesticides, lithium batteries and gasoline. It refuses vehicle and household batteries, propane tanks, smoke detectors, empty aerosol cans and fire extinguishers.

Latex paint is separate: the county says latex paint is not hazardous waste. The Dennis guide tells you to dry it out and put it in the trash. Medicines go to the lobby bin at the Police Station, 90 Bob Crowell Road.

Between collection days

Some things have a year-round home at the Transfer Station, open Wednesday to Sunday, 8 a.m. to 4 p.m.: automotive batteries are free, propane tanks of 20 pounds or less are free, and the guide lists cooking and motor oil as accepted. Fluorescent bulbs go through the gate attendant.

Everything else waits for the county. Keep chemicals in original, closed containers, upright in a box, out of a hot car. JUNKRUN does not haul hazardous waste. We take the furniture, boxes, appliances and debris around it: a quarter trailer $209, a half $319, three-quarters $409 and a full trailer $519.

Hazardous waste in Dennis, 2026 and after

  1. June 6, 2026

    First Dennis collection, 9 a.m. to 1 p.m., Tony Kent Arena (past).

  2. August 1, 2026

    Second Dennis collection, 9 a.m. to 1 p.m. (past).

  3. September 5, 2026

    Third and last 2026 collection, 9 a.m. to 1 p.m. (past).

  4. Spring 2027

    Barnstable County says it will post the 2027 schedule and town brochures.

  5. Any Wednesday to Sunday

    Transfer Station: free auto batteries and small propane tanks; oils and bulbs through the gate.

Local resources in Dennis

Donation, reuse and recycling options near the pickup. We are not affiliated with these; confirm hours and what they accept before you go.

Quick answers

When is Dennis hazardous waste day?

+

The 2026 days (June 6, August 1 and September 5) have passed. The county says the 2027 schedule will be posted in spring 2027.

Where is the Dennis hazardous waste collection?

+

Tony Kent Arena, 8 South Gages Way, Dennis, 9 a.m. to 1 p.m. on the 2026 dates.

Does Dennis take latex paint?

+

The county says latex paint is not hazardous waste. The Dennis guide says to dry it and put it in the trash.

Where do I take old medication in Dennis?

+

The Police Station at 90 Bob Crowell Road has a disposal bin in its lobby.

Sources

Rules, fees and hours change, so confirm with Dennis before you go.

Related

Hauled from
$159
Get my priceText