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Pittsburg Police Department (CA)
Wednesday August 28th, 2013 :: 10:00 a.m. PDT


Contra Costa County Community Warning System (CWS) -Test

On the evening of August 28, 2013, the Contra Costa County Community Warning System (CWS) will be conducting a large scale public test of the telephone portion of the CWS system to check call capacity and quality.  Only the phone portion of the CWS, which includes voice calls to landlines in predetermined areas as well as voice calls, text messages and emails to devices pre-registered with the CWS, will be contacted.

What is NOT being tested?  Sirens, Emergency Alert System, NOAA weather radios, CMAS (Commercial Mobil Alerting System), Facebook, Twitter.  The CWS is a very robust and integrated system and the phone vendor is not responsible for the activation of any of these additional tools.

Residents who live in the Pittsburg/Antioch area surrounding Dow Chemical, or who have registered to receive alerts in this area, will receive the test alert.  To register to receive emergency alerts go to

Pittsburg Police Department (CA)
65 Civic Ave
Pittsburg, CA 94565

Emergency: 9-1-1

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