Drop Box Sites

ATTENTION: The Coulee City Drop Box site is permanently closed as of September 11, 2021. 

Grant County continues to operate the Mattawa drop box site. This is a rural disposal site with limited operating hours. Waste that is delivered to the Mattawa drop box site by Grant County residents is then transported by truck to the Ephrata landfill. 

Drop Box Site Hours of Operation:


MATTAWA Friday - Saturday : 9:00 am-5:00  pm

WINTER HOURS:  November 1 to March 31 - Drop Box Site close at 4:00 pm

Directions to the Mattawa drop box site:

The Mattawa drop box site is located approximately two miles south of Mattawa off of State Highway 243 on the east side of the highway.


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.