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Download Ecowise Guide

The ECOWISE program provides Montgomery County businesses, or Small Quantity Generators ( SQG), who generate less than 220 pounds (or 100 kg) of hazardous waste an inexpensive and convenient way of disposing of their hazardous material.

A SQG must also generate less than 2.2 pounds (1 kg) of acute hazardous waste per month.

Acute hazardous waste is defined under Code of Maryland Regulations, Title 26, Subtitle 13, Section 02.09 ( Article A(2) as:

"a solid waste that has been found to be fatal to humans in low doses or…is otherwise capable of causing or significantly contributing to an increase in serious irreversible, or incapacitating reversible, illness."

Refer to Code of Maryland Regulations for a complete description of acute hazardous waste.

Download ECOWISE Registration Form OR Register for the ECOWISE Program Online

Registration is free! Once you receive your packet of information, do a "Haz Waste audit" as described in the Ecowise Guide. If your audit shows you generate less than 220 pounds per calendar month, you may join the ECOWISE program.

If you use the PDF (paper) application, return the form completed and signed to:


Ray Wimbrough
Montgomery County Division of Solid Waste Services
16101 Frederick Rd
Derwood, MD 20855-2223

What is the program location and schedule?

ECOWISE collections are held on the second Wednesday of every month from 1:00 p.m. to 5:00 p.m. at the Shady Grove Processing Facility and Transfer Station, provided the Transfer Station is not closed due to weather or other emergencies. You do not need an appointment.

Enter the Transfer Station via the Truck Entrance on Shady Grove Road. This is located 1/10 of a mile east of Route 355.

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