CalPortland Company
Redding,
California
View Accreditation Certificate
David
Daugherty
15390 Wonderland Boulevard
Redding
,
California
96003
Phone: (530) 949-5561
Fax:
ddaugherty@calportland.com
http://www.calportland.com/locations/california/redding-cement-plant/
Quality Management System - accredited since 8/18/2016
R18, C1222 (Cement)
Cement - Physical Tests - accredited since 8/18/2016
C109, C114 (Loss on Ignition - Reference), C151, C183, C185, C187, C191, C204, C266, C305, C430, C451, C511, C1038, C1437
Cementitious Material - Chemical Tests - accredited since 8/18/2016
C114 (Aluminum Oxide – X-Ray Fluorescence)
C114 (Calcium Oxide – X-Ray Fluorescence)
C114 (Ferric Oxide – X-Ray Fluorescence)
C114 (Loss on Ignition – Reference)
C114 (Magnesium Oxide – X-Ray Fluorescence)
C114 (Potassium Oxide – X-Ray Fluorescence)
C114 (Silicon Dioxide – X-Ray Fluorescence)
C114 (Sodium Oxide – X-Ray Fluorescence)
C114 (Sulfur Trioxide – X-Ray Fluorescence)
Please note that our accreditations do not include an expiration date. An accreditation only expires when the laboratory fails to comply with our accreditation requirements.
* This information is only valid as of 10/27/2026. Please visit https://aashtoresource.org for current accreditation status.
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