This collection consists of materials related to the Environmental Coalition of Orange County (ECOC), a non-profit environmental
group based in Santa Ana, California. The collection includes subjects divided into various county environmental issues from
the mid-to-late 1970s to the early 1980s. In addition to correspondence to and from ECOC Executive Director, Harold (Hal)
M. Thomas sprinkled throughout the collection, there are a variety of printed materials on many different local environmental
Formed in 1972, the purpose of the Environmental Coalition of Orange County, Inc. was stated, "...to preserve and enhance
the environmental quality of Orange County." The Coalition informed its members and the public through its newsletter, "Environmental
News" which was described as a clearinghouse of all environmentally concerned groups and individuals in Orange County.
2.0 Linear feet
Property rights reside with the University of California. For permissions to reproduce or to publish, please contact the Head
of Special Collections and Archives.
This collection is open for research.