About
Contact
Obsidian Middle School
15880 Dam Road Room 602
Clearlake, CA 95422
Phone: (707) 994-6447
Fax: (707) 994-1396
Office Hours
The School office is open Monday through Friday from 8:00 am to 4:00 pm.
You can reach one of our secretaries by phone by calling (707) 994-6447. If there is no answer, please leave a voicemail and we will get back to you as quickly as we can.
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