What we offer
Cornerstone can help your company with PEA assessments, well monitoring, air pollution control, wastewater permitting, facility demolition, general engineering, green technology design and facility recycling programs. Contact us for a no obligation consultation.

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Cornerstone Technologies, Inc.
333 W. Broadway, Suite 318
Long Beach, CA 90802

David Andrien
Project Manager
Mr. Andrien is a Senior Project Manager for CTI Environmental, Inc. He is a general real estate expert and has over 20 years of diverse experience in various professional areas of real estate property a few of which are Construction, Appraisal, Finance, Remediation, Management, Land Use Rights and Entitlements, Planning and Development.
He is responsible for client development, proposals, client contacts, project management, research and report writing, field operations, vendor control, project communications, interface with clients, subcontractors, and manages his own projects involving land development, restoration and compliance actions.
| Education | |
| BS and AS Computer Information Systems | |
| Certified General Appraiser | 1996 |
| Certified Government Contracts Administrator | 1988 |
U. S. Marine
Plane Captain; A-4, F-4, F-18, VMFA-134 El Toro and MCAS Miramar Maintenance Mechanic, AV-8B Harrier II MCAS Cherry Point
NCOIC Nuclear and Biological Warfare Instructor
NCOIC Emergency Reclamation Coordinator
NCOIC Drug and Alcohol Testing and Enforcement
NCOIC Hazardous Waste Collection Coordinator










