The CIWMB has produced several documents that emphasize the economic and environmental benefits of the recycling and reuse industry. Information on these reports, other publications, documents, and web site links of interest can be found at:
http://www.ciwmb.ca.gov/WPIE/CaseStudies/

Here is a case study on the use of organics:

City of Los Angeles–Green Material and Manure Compost Demonstration Project. Click on the image to download the PDF.

Here’s what several people had to say about specific recycled-content materials:

“The City of Thousand Oaks is quite pleased with its experience with RAC. We’ve been using RAC for over a decade and encourage the use of this product in other California cities. If we can see the benefits of RAC so can you.”
--Tom Pizza, P.E.
Engineering Division Manager, City of Thousand Oaks
Construction and Right of Way Management

“By using recycled aggregate, we were able to be efficient, save money, and help our environment. It was an easy choice for San Mateo County.”
--Diana Shu
Senior Engineer
Public Works Department of San Mateo County

“Our city has benefited greatly from the composting facility and by using organic materials on a variety of landscaping, road and beautification projects.”
--Jocelyn Reed
Solid Waste Program Manager
City of Modesto

“On the Dixon Landing interchange project, Caltrans needed lightweight embankment fill because of weak bay mud. TDA saved Caltrans nearly $250,000 over the next cheapest alternative. Moreover, the project used over 600,000 tires--a win for everyone.”
--Dana N. Humphrey, Ph.D., P.E.
Professor of Civil Engineering, University of Maine
Engineering Consultant to the Dixon Landing Project