OWP will be closed from 4:00 pm on Friday, December 20, 2024, until 8:00 am on Thursday, January 2, 2025, for Winter Break.
(All times are PST.)
If exams are submitted: |
Course certificates will be mailed: |
By December 13th |
By December 20th |
After December 20th |
Early January |
Please note: Postmark dates will not be honored.
Water and Wastewater Terms Beginning M
A B C D E F G H I J K L M N O P Q R S T U V W Y Z
mechanical cleaning
Clearing pipe by using equipment that scrapes, cuts, pulls, or pushes the material out of the pipe. Mechanical cleaning devices or machines include bucket machines, power rodders, and hand rods.