<alert><identifier>1924129139681081-1132520260627003655195</identifier><sender>ContraCostaCounty</sender><sent>2026-06-26T17:36:55-07:00</sent><status>Actual</status><msgType>Alert</msgType><source>IWSAlerts</source><scope>Public</scope><code>IPAWSv1.0</code><info><language>en-US</language><category>Safety</category><event>Local Area Emergency</event><responseType>Shelter</responseType><urgency>Immediate</urgency><severity>Severe</severity><certainty>Observed</certainty><eventCode><valueName>SAME</valueName><value>LAE</value></eventCode><expires>2026-06-26T21:36:55-07:00</expires><senderName>CA Contra Costa County CWS, Martinez, CA</senderName><headline>SHELTER IN PLACE for Hazardous Chemicals release near Walnut Creek. Info at CWSAlerts.com</headline><description>SHELTER IN PLACE for Hazardous Chemicals release near Walnut Creek. Info at CWSAlerts.com. This is a message from Contra Costa County Fire Protection District. As of 5:34 PM, there is a hazardous chemicals emergency East of highway 680, South of Monument Boulevard, and West of Oak Grove. 

Also known as zones WCR-025, WCR-021, CNC-019, PLH-048.

The danger will be much less indoors. Go inside, and close all windows and doors. Turn off all heaters, air conditioners, and fans. Unless you are using your fireplace, close your fireplace dampers and vents. Cover any cracks around doors or windows with tape or damp towels. Stay off the phone unless you must report a life-threatening emergency at your location. Remain sheltered indoors until you receive further official instructions.</description><instruction></instruction><parameter><valueName>WEAHandling</valueName><value>Public Safety</value></parameter><parameter><valueName>CMAMtext</valueName><value>SHELTER IN PLACE for Hazardous Chemicals release near Walnut Creek. Info at CWSAlerts.com</value></parameter><parameter><valueName>CMAMlongtext</valueName><value>SHELTER IN PLACE for Hazardous Chemicals release near Walnut Creek. Info at CWSAlerts.com</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>EAS</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>NWEM</value></parameter><parameter><valueName>BLOCKCHANNEL</valueName><value>PUBLIC</value></parameter><resource><resourceDesc>Supplemental Info Link</resourceDesc><mimeType>text/html</mimeType><uri>http://www.cwsalerts.com</uri></resource><area><areaDesc>Location</areaDesc><polygon>37.9397,-122.0349 37.9436,-122.0279 37.9491,-122.0334 37.9451,-122.0415 37.9449,-122.0473 37.9483,-122.0512 37.9261,-122.0552 37.9254,-122.047 37.9344,-122.0328 37.9359,-122.0315 37.9397,-122.0349</polygon><geocode><valueName>SAME</valueName><value>006013</value></geocode></area></info><Signature xmlns="http://www.w3.org/2000/09/xmldsig#"><SignedInfo><CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><Reference URI=""><Transforms><Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/></Transforms><DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><DigestValue>V8I+5y+ED5vuyQ8RO/cZnxXnQbQ/3tiHBvSmz49y3gU=</DigestValue></Reference></SignedInfo><SignatureValue>kr6BOC6SpWMmNwK6oNTMY8pzp82S8mhP4m+K2rhFAeJNMRFJDNpcRN2B0MCEH3E/4GeFAk7PA6HpjHuGqZWW0Y1WvPDlnGEiBN1CLKWvuopoi3LdYoa+1ZcBBJLTNH00SsPjMnBRBTF1xWZSxoTM92k2D+mTfycfBLRN/g1XSrlJdHzn8qqwpKSqPJZa+yfedGW5pkn1hzCcxjnEK/bYAyIKPYzCjfbJqh7HT6C552V0cReZn1o5KXcQbL08e2X1AptMp1u4zENPsMtdZOfWfJSJCXTqZlP+QplQxmRZEmeOGQvJt7mFIz5O3FfhUbOXncS/7oXOj8jaH6Pnfj3LVA==</SignatureValue><KeyInfo><X509Data><X509SubjectName>CN=IPAWSOPEN200002, OU=A01410C00000196F82D05CF000F86E3, OU=Devices IPAWS, OU=National Continuity Programs, O=FEMA IPAWS, C=US</X509SubjectName><X509Certificate>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</X509Certificate></X509Data></KeyInfo></Signature></alert>