Why ET&T // Who We Are / Our Staff / Certifications & Licenses / Our Instrumentation / Articles of Interest / Careers / Our History

Our Staff

Peter Sierck, President (REA, CIAQP)
The Founder of ET&T in 1986, Peter pioneered indoor air quality testing methods and procedures for residential and commercial buildings. He has surveyed over 3,000 buildings and has been called upon as an expert witness in numerous litigation cases. In addition to running the company, Peter directs our Indoor Air Quality, EMF and Training Departments.

As a committee member of the IICRC (Institute for Inspection Cleaning and Restoration Certification), Peter was instrumental in the development of the S500 Standard and Reference Guide for Professional Water Damage Restoration and the S520 Standard and Reference Guide for Professional Mold Remediation.

Peter is currently a member of the Indoor Air Quality Association’s (IAQA) Education Committee and committee chair for the Microbial Investigation Track. He is also Director of Education for the CFI (Carpet & Fabricare Institute) and an OSHA authorized health and safety trainer.

Peter is currently directing the business and conducts training courses for different organizations in the US and Canada. He has studied industrial hygiene, environmental methods, and engineering controls at University of San Diego, University of California Berkeley, in Germany, and with other professional organizations such as MidAtlantic Environmental Hygiene Resource Center (MEHRC) in Philadelphia. Peter is a Registered Environmental Assessor (REA), Certified Indoor Air Quality Professional (CIAQP), Certified Indoor Environmental Consultant (CIEC), Certified Microbial Consultant (CMC) and Certified Mold Remediation Supervisor (CMRS).

Connie Jenkins – Environmental Mycologist
Connie has been with ET&T since 1993 and directs our Litigation Department. She has more than 20 years of experience in environmental microbiology, field investigations, designing engineering solutions and analyzing in-house lab samples. She consults with attorneys in litigation cases involving construction defect, moisture and mold problems, and their appropriate associated repairs. She is a participant in the AIHA’s Environmental Microbiology Analytical Proficiency Testing (EMPAT) Program with scores consistently above 95%. She is a certified Spore Analyst 1 through the Pan American Aerobiology Certification Board. Connie has a Bachelors Degree in microbiology and has obtained an Air Quality Management Certificate from the University of California San Diego.


Felice Neumann – Director, Customer Relations
Felice joined ET&T in 1996. She is the director of the Customer Relations Department and her responsibilities include customer service, accounting, project and business management. She has received training in building science and indoor air quality, fire and smoke damage, health and safety, mold and water damage restoration.

With over ten years in the field, Felice has both field, project, and account management experience she brings to the table. As a licensed physical therapist she has training in ergonomics from various professional organizations in the US and Germany. Her medical and psychology background combined with her good business sense make her a valued asset for customer relations.

Cecelia Worthington – Environmental Microbiologist
Cecelia has been with ET&T since 2002. Her responsibilities include in-house laboratory analysis of mold samples. She has over 20 years of laboratory experience in microbiology which includes environmental, clinical and medical manufacturing positions. She has a Bachelors of Science degree in Microbiology from San Diego State University, a Professional Certificate in Biotechnology from San Diego State University, an Associate of Science degree in Respiratory Care from Grossmont College, and maintains both California State and National Laboratory Scientist licenses.

Michael Smith -- Vice President/Environmental Consultant

Mike is a seasoned environmental consultant who originally joined ET&T in 2000. Mike conducts indoor air quality and microbial investigations and develops remediation specifications. He also handles the business development and maintains business relationships for the company. Responsible for developing scope of work and provides cost estimating for projects for residenetial and commercial buildings. Mike tracks projects and laboratory samples, ensures completion and maintenance of related paperwork and helps with marketing efforts to generate future business. Mike received his AS in Network Engineering Technology from Maric College in Vista, CA, Microsoft Certified Professional Certification (MCP), Certified Microbial Remediation Supervisor (CMRS) Certificate of Completion, and Certified Microbial Consultant (CMC) Certificate .