ABZCZC-CIV-CEM-0060130000-2102325-  There has been a mistaken activation of the Contra Costa CWS.
Sirens may have been sounded in North Concord, Clyde & Vine Hill.
Please advise the public that there is no known incident or hazard in North Concord, Clyde & Vine Hill.
If additional information is needed please page the Hazardous Materials Program at 925-295-8234 ABNNNN   EDIS-07-30-01 1619 PDT

[EDIS]  COMMUNITY WARNING SYSTEM MESSAGE [Urgent: San Francisco  Bay]
ABZCZC-CIV-CEM-<PHONE>-<PHONE>- There has been a mistaken activation of the Contra Costa CWS.
Sirens may have been sounded in North Concord, Clyde & Vine Hill.
Please advise the public that there is no known incident or hazard in North Concord, Clyde & Vine Hill.
If additional information is needed please page the Hazardous Materials Program at <PHONE> ABNNNN EDIS-<NUMBER>-<NUMBER>-<NUMBER> <NUMBER> PDT
clyde hill advise abnnnn edis phone mistaken activation contra costa cws materials program needed page known incident hazard sounded