Drop Box Sites

Grant County operates the Mattawa drop box site and the Coulee City drop box site. These are rural disposal sites with limited operating hours. Waste that is delivered to the drop box sites by Grant County residents is then transported by truck to the Ephrata landfill.

Dropbox Hours of Operation:

COULEE CITY South City Limits

Fri : 1pm-5pm

Sat : 9am-5pm

MATTAWA Fri-Sat : 9am-5pm

WINTER HOURS (both locations):  November 1 to March 31 - Drop Box Sites close at 4:00 pm


  • The Mattawa drop box site is located approximately two miles south of Mattawa off of State Highway 243
  • The Coulee City drop box site can be located with the following directions:
    1. From Main Street turn south onto 1st Street
    2. Proceed to Arch Street
    3. Turn right on Arch Street and follow the road to the drop box site


Garbage Tipping Fee (loose) $56.00 per cubic yard

Less than 1/2 cubic yard, per load $28.00

Drop Box Fee Schedule June 1, 2021

Unsecured Load additional Fee:

  • Passenger vehicles - $5
  • Trucks (over 3 cubic yards) - $15

Secured Load Ordinance 11--58--CC

Section 1. Grant County Code Section 8.28.190 and all Ordinances amending said section are hereby amended as follows:

“Unsecured Load” means a shipment of solid waste in or on a vehicle that is not covered with a tarp, inside an enclosed vehicle or otherwise secured or tied down by safety chains or other fastening devices in a manner that will prevent materials from spilling, escaping, falling, or being blown or deposited outside the vehicle while the vehicle is in motion. For purposes of this definition, solid waste contained in trash bags that are not covered with a tarp, inside an enclosed vehicle or otherwise secured down is an unsecured load.