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Central Marin Sanitation Agency
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The Executive Team consists of the General Manager, Administrative Services Manager, Treatment Plant Manager, Technical Services Manager, and Regulatory Compliance Manager.


GENERAL
MANAGER

 

Jason R. Dow, PE

Jason was hired at CMSA in 1993 as an engineering technician, and became General Manager in 2002. He has a civil enineering degree from UC Berkeley, a M.S. degree in Environmental Engineering from San Francisco State, and is a registered Professional Engineer (PE) in California. He enjoys spending time with this family, working on home improvement projects, and mountain biking on the trails in Marin.

[email protected]

415-459-1455, ext. 145


TREATMENT
PLANT
MANAGER

 

 

Nick Talbot

Nicholas has over 15 years of experience in the wastewater industry. He holds a State Water Resource Control Board Grade V Operator License, along with Grade IV Certifications in Mechanical and Electrical Instrumentation from the California Water Environment Association. He received a BA in Business Administration from Gonzaga University and currently serves on the Water/Wastewater Advisory Committee at Santa Rosa Junior College. He enjoys adventures with his wife and daughter, playing golf, and watching college basketball.

[email protected]

415-459-1455, ext. 101


Corey Spray ADMINISTRATIVE
SERVICES
MANAGER

 

Corey Spray

Corey is a certified public accountant (CPA) and has worked as a finance and administrative professional since 2016 at various public and private organizations. Previous to joining CMSA, he has worked at the Ross Valley Sanitary District, Salesforce.com, Inc., and KPMG, LLP. He holds an MBA from Saint Mary’s College of California and a BS in Accounting from the University of San Francisco. Lastly, he enjoys cycling around the Bay Area, travelling to new places, and cooking new foods. 

[email protected]

415-459-1455, ext. 129


TECHNICAL
SERVICES
MANAGER/

ASSISTANT 

GENERAL 

MANAGER

 

 

Peter Kistenmacher

Peter has worked in the wastewater and bioenergy industries since 2003. He joined CMSA in 2018 and previously worked for six years at Silicon Valley Clean Water, and ten years in various engineering and business roles at wastewater technology and engineering firms. Peter received B.S. and M.S. degrees in Environmental Engineering from UC Berkeley and is a registered Professional Engineer (PE) in California. He enjoys spending time with his family and running, biking and hiking on the trails around the Bay Area.

[email protected]

415-459-1455, ext. 122 


REGULATORY
COMPLIANCE
MANAGER

 

Mark Koekemoer

Mark has worked as a chemist since 2002, and previously acted as the Laboratory Director for Napa Sanitary District. Mark has served on the Standard Method Joint Task Groups, the CWEA North Bay Laboratory Committee, and the Environmental Technical Advisory Committee, and holds a Master of Science Degree from Texas A&M University.

[email protected]

415-459-1455, ext. 147

 

CONTACT INFORMATION

1301 Andersen Drive, San Rafael, CA 94901
Phone: 415-459-1455 / 415-223-7793
Fax: 415-459-3971

OFFICE HOURS

8:00 am - 4:00 pm  Monday - Thursday
8:00 am - 3:00 pm  Friday

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© 2025 Central Marin Sanitation Agency