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Andrew Pigniolo is the President of Laguna Mountain Environmental, Inc.  He serves as Principal Investigator/Project Manager and Archaeological Field Director for projects, and is directly responsible for all projects.

Laguna Mountain currently employs three full-time senior archaeologists, four full-time associate archaeologists, two full-time temporary archaeologists, a full-time lab manager, a graphic artist and GIS specialist, and an office manager.


Andrew R. Pigniolo, Archaeologist

Mr. Andrew R. Pigniolo, M.A., RPA
Principal Investigator and Project Manager

Mr. Pigniolo received his M.A. in Anthropology, with an emphasis in Archaeology, from San Diego State University in 1992.  He has been a member of the Register of Professional Archaeologists (RPA) since 1992 and is on the County of San Diego and County of Riverside lists of qualified archaeological consultants.  He is also qualified for work in the City of San Diego.  As Principal Archaeologist/Ethnohistorian at Laguna Mountain, Mr. Pigniolo manages and conducts cultural resource investigations involving compliance with NHPA, NEPA, and other federal regulations, and with CEQA and other state and local laws.  Mr. Pigniolo has more than 36 years of experience as an archaeologist, and has conducted more than 850 projects throughout southern California and western Arizona.  He has authored numerous technical reports and prepared cultural resources sections of many EAs, EISs, and EIRs for Federal, state, and local review.

Mr. Pigniolo has been involved with a variety of local government contracts and Federal work.  Mr. Pigniolo has received HAZWOPPER training and holds an active card for hazardous material work.  Mr. Pigniolo has experience conducting cultural resource investigations for a wide variety of development and resource management projects including tribal economic development projects, water resource facilities, transportation projects, commercial and residential developments, military installations, geothermal power projects, and landfills. He has conducted the full range of technical studies including archaeological overviews, surveys, test excavations, historical research, ethnographic research, evaluations of significance for National Register eligibility, data recovery programs, and monitoring projects.  Mr. Pigniolo works closely with the Native American community in southern California and maintains good working relationships with a variety of community members.

Mr. Pigniolo also has extensive experience in the field of biology in southern California, and conducts specialized botany studies. Mr. Pigniolo has taken numerous field botany classes at San Diego State University, California State University Fullerton, the Santa Barbara Botanical Garden, and the San Diego Natural History Museum focused specifically on regional plant identification. He has more than 24 years of botanical field experience and has participated in biological surveys for the County of San Diego, City of San Diego, U.S. Navy, and the San Dieguito River Joint Powers Authority. Mr. Pigniolo maintains an herbarium of reference plant specimens to aid in species identification. For more than 8 years, Mr. Pigniolo has held a U.S. Fish and Wildlife Service permit to conduct Quino Checkerspot butterfly habitat assessments and adult surveys. In addition, he has also conducted numerous Hermes Copper butterfly surveys and assessments.






Ms. Carol SerrMs. Carol Serr
Associate Archaeologist / Lab Director

Ms. Serr received her B.A. in Anthropology from San Diego State University, summa cum laude, with Distinction in her major  in 1978. She has more than 36 years of experience as an archaeologist, laboratory supervisor, and technical illustrator. She has been involved in archaeological investigations in southern California and far western Washington, but her focus is primarily within San Diego County. Carol performs supervision of laboratory procedures and personnel, analysis of prehistoric artifacts and marine shellfish remains as well as historic refuse collections. Her work also involves preparing summary and detailed data tabulations, and contributing the artifact description sections of technical reports. Her field experience includes over 15 years of fieldwork including supervising surveys and testing and data recovery excavations, for which she produced technical reports. Carol has supervised laboratory procedures and artifact analyses of recovered collections since 1993, with a specialty in both flaked and ground stone artifact analysis, as well as marine shell identification. As a technical illustrator for more than 14 years, she illustrated a wide range of prehistoric and historic artifacts, and documented pictographs, rock alignments, and milling features. She has been a teaching assistant for several stone tool-making workshops.

She also has over 15 years of experience processing historic materials, and has been involved with researching twentieth century bottle making companies and the markings they used on their containers with an emphasis on date code marks. She is a contributing author on over 20 bottle mark articles published in several magazines and a 2009 Historical Archaeology journal issue (copies of these can be accessed through the Society of Historical Archaeology bottle webpage:

Ms. Serr has served on the Board of Directors for both the San Diego County Archaeological Society and Spring Valley Historical Society for more than 16 years; and is newsletter editor for the latter.




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    Laguna Mountain Environmental, Inc.
Phone: 858.505.8164
Fax: 858.505.9658

Copyright 2006 - 2013, Laguna Mountain Environmental, Inc.
Page last updated on November 21,  2017