Resources

DeSilva Affiliate Companies

One of our greatest strengths is the access to the diversity and quality of our combined affiliate companies. We built our reputation on “Project Partnering” by sharing the vision and goals that our clients invest in. As a true project partner we reduce risks, maximize savings, deliver long term sustainability and provide our clients an educational experience. We maintain a proven track record of success through applied experience and achieve these goals by listening to, and teaming with, our clients. Every project is unique and we craft our approach to address their challenges and complexities. This has been the foundation of our growth and is our fundamental philosophy. Explore the DeSilva Companies

Dumbarton Quarry Associates (DQA) Acceptance Requirements

To DOWNLOAD, select link and right click to download:

STANDARD REQUIREMENTS FOR IMPORT TO DUMBARTON QUARRYDTSC Clean Fill Material Advisory Sheet:  Download PDF   

California State Water Board’s ESL Information:  Download PDF>>

Pacific States Water Division Visit Website 

Pacific States Employee Contact List

Review a list of PSEC employees.