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
micron(µm) (MY-kron)
A unit of length. One millionth of a meter or 1 thousandth of a millimeter. One micron equals 0.00004 of an inch. A typical bacterium cell diameter ranges from 1 to 10 µm. Also called micrometer.
