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Walnut Street Center
1400 SW Walnut Street
Suite 240
Hillsboro, Oregon 97123

Monday: 8:30 am - 2:30 pmBy Appointment 503-846-7780 or [email protected]
Tuesday: 8:30 am - 2:30 pmBy Appointment
Wednesday: 8:30 am - 2:30 pmBy Appointment
Thursday: 8:30 am - 2:30 pmBy Appointment
Friday: 8:30 am - 2:30 pmBy Appointment

Closed on the following holidays:

New Year's Day (January 1)
Martin Luther King, Jr. Day (third Monday in January)
Presidents Day (third Monday in February)
Memorial Day (last Monday in May)
Juneteenth Day (June 19)
Independence Day (July 4)
Labor Day (first Monday in September)
Veterans Day (November 11)
Thanksgiving Day (fourth Thursday in November)
Christmas Day (December 25)

When a holiday falls on a Saturday, we're closed the Friday before. When a holiday falls on a Sunday, we're closed the following Monday.

Departments and programs

Watermaster

The District 18 Watermaster’s Office is a field office of the Oregon Water Resources Department (OWRD) in cooperation with Washington County.