Board of Directors
President
Scott Newton
Scott is an accomplished design engineer with over 20 years of experience in the San Diego area.
Vice President, Technical
Juan Ignacio Contreras, CPD
Personal
Juan I. Contreras, CPD is a Senior Plumbing Designer at CBR in San Diego. He has over 30 years of experience in the Plumbing industry, as he specializes in all aspect of Plumbing design, from concept to construction. Juan has been involved with ASPE at many levels, including former president of Southern Nevada Chapter, VP Tech of Orange County Chapter, and is currently and proudly serving as the VP Legislative for the San Diego Chapter. Juan is a strong believer in the power of positive thinking and team work. Juan also enjoys oil painting, good music and dancing, and can been found on a long winding road on his Harley every now and then.
Vice President, Membership
Chrissy Hamm
Signature Sales
Chrissy has been involved in the plumbing industry for over 20 years. Chrissy began her career as plumbing manufactures representative in 1999 and has represented many of the strongest brands in the industry from the highly technical to the most basic. She has been working at Specification Sales for over 11 years and based on the product mix she has represented, she has become expert in the industry. She has been responsible for calling on multiple customer channels including; end-users, inspectors, engineers, architects, contractors and distributors. Chrissy supports ASPE as well as maintains involvement with several other plumbing organizations including PHCC, IAPMO, ICC & NAWIC. She is married and a mother to her daughter Madison. In her spare time, she enjoys running and hiking.
Vice President, Legislative
Christian Erese
Christian is a Plumbing Engineer at P2S, based in the San Diego office. He earned his B.S. in Mechanical Engineering from Cal Poly Pomona and is a licensed Professional Engineer (PE). Christian began his career in the fire protection industry in San Francisco, where he worked for two years before returning to his hometown of San Diego to transition into the plumbing industry. He has since gained seven years of experience in plumbing engineering.
Christian primarily focuses on Healthcare, Education, and Laboratory projects but has also contributed to a wide range of other sectors. He enjoys the opportunity to expand his knowledge and expertise by engaging with various types of building design.
Treasurer
Liza Cusimano, CPD, GPD
Arup
Liza works as a Senior Plumbing Engineer for Arup San Diego where she works primarily on Healthcare and Life Sciences and has more than a 13 years experience working in the construction industry in California and Wisconsin.
Her Market Sector design experience includes Primary and Secondary Education, Post-Secondary, Stadiums, Biotech Laboratories, Health Care Facilities, new and renovation; Hospitality, low, mid, and high rise; Historic Building renovation, Industrial Facilities renovation, Multi-family housing, and Restaurants
She has a B.S. in Architectural Engineering, emphasis in Plumbing, Fire Protection, and HVAC Design, from the Milwaukee School of Engineering and has obtained the ASPE CPD certification and her EIT.
Administrative Secretary
Ellie Rivas
Renco Sales
Corresponding Secretary
Nathan McGrath
NIBCO
ASPE San Diego Affiliate
Martin Trim, P.E., GPD, LEED AP
Barrett Engineered Pumps
Martin is a third-generation plumber who started working in industry at a very young age. As a professional mechanical engineer. he has Journeyman level plumbing and gasfitter certifications. He has served various engineering firms in design and project management roles and is currently the principal engineer at Barrett Engineered Pumps. Martin is responsible for technical support to both the civil and mechanical engineering communities. Martin has been an expert witness for plumbing, HVAC, and fire protection cases, and continues to selectively take on projects in that realm. Martin has been on the NFPA Technical Committee for Residential Fire Sprinklers on behalf of the American Society of Plumbing Engineers since 2012. Additionally, he has assisted in the code making process for the 2013, 2016, 2019, and 2022 versions of the NFPA 13R and 13D standards.
Martin joined the local ASPE Board of Directors in 2009 as VP Legislative and went on to serve as President for five years. For the San Diego chapter, he is currently the Affiliate Liaison, the Golf Tournament Chair, serves on the Board of Governors, and teaches the CPD class. Martin is on the Legislative Committee for ASPE National where he serves as the liaison with the NFPA Residential Sprinkler Technical Committee.
Newsletter Editor
Juan Ignacio Contreras, CPD
Personal
Juan I. Contreras, CPD is a Senior Plumbing Designer at CBR in San Diego. He has over 30 years of experience in the Plumbing industry, as he specializes in all aspect of Plumbing design, from concept to construction. Juan has been involved with ASPE at many levels, including former president of Southern Nevada Chapter, VP Tech of Orange County Chapter, and is currently and proudly serving as the VP Legislative for the San Diego Chapter. Juan is a strong believer in the power of positive thinking and team work. Juan also enjoys oil painting, good music and dancing, and can been found on a long winding road on his Harley every now and then.
