Say hello to the Dirtbags from our Livermore office.

No really, that’s their name. Catch them every Friday night as they end their work-week with the Livermore Area Recreation and Parks District (LARPD) Softball League.

BSK Associates is now certified for PFAS analyses by EPA Method 537.1

The Water Board recently issued investigative orders for PFAS monitoring in drinking water wells that have either had previous detections or are close to airports or municipal solid waste landfills.

BSK Associates is now certified by the CA ELAP to perform EPA Method 537.1 for the full list of 18 required compounds.  BSK has performed PFAS analyses for over 6 years.  During that time, the laboratory completed thousands of EPA Method 537 analyses while participating in the EPA’s UCMR3 monitoring program.  BSK is well versed in reporting and regulatory quality requirements needed for these analytes.  We are also available to take samples.

For more information please contact: 

Stephane Maupas (Fresno) – 559-497-2888 x212 or

Cyndi Moore (Southern California) – 951-295-6123 or

Renea Rangell (Pacific Northwest) – 360-750-0055 x405 or

Brenda Hamilton (Sacramento) – 916-853-9293 x306 or

Additional EPA 537.1 Information Can Also Be Found at:

CA Water Board PFAS FAQs

Sampling Guidelines

US EPA PFAS Information

New Northern Regional Manager, Tim Rodriguez

BSK Associates is pleased to announce the appointment of Mr. Tim Rodriguez as Northern Regional Manager. Tim has over 25 years of experience in materials testing and inspection, encompassing a wide range of work including soils, asphalt, concrete, and steel laboratory testing, as well as field inspections of soils, paving, concrete and reinforcing steel.  He serves as Branch Manager and Construction Services Group Manager for the BSK’s Livermore office and has a wide range of project management and technical supervision experience for numerous projects throughout the San Francisco Bay Area and Central Valley regions of California.

In his new role as a regional manager, Mr. Rodriguez will be responsible for strategic and operational planning, and growth in the Livermore and Sacramento Engineering offices. In addition, he will be responsible for the oversight and management of all aspects of operations, including financial performance, opportunity backlog, resource allocation, project performance, professional development of staff, and client relationship management.

Beyond the more common set of inspection and testing disciplines, he has extensive experience in many specialized testing applications including ground penetrating radar surveys, floor flatness testing, reinforcing steel surveys, pulse-velocity testing of concrete, specialty load testing, fire damage assessments and condition surveys. He serves as project manager for many of BSK’s municipal on-call agreements and is experienced in supporting our client’s technical needs while focusing on customer service.

Tim is a Past-President for the statewide California Council of Testing and Inspection Agencies (CCTIA), and in his personal time enjoys staying in touch with technology and computers, playing baseball, reading, cooking, exercising, and playing the guitar.

Our Team is Recognized by the City of Davis for Excellent Service and Professionalism

At BSK, we understand the important role we serve to our clients.  That is especially true of our Analytical Chemistry division, where it’s not always “Just another day at the office.” Emergency situations often come up that require testing, and they don’t always come up during business hours. There are times when public health and safety matters could be at stake, so having a team that is always prepared to respond to our clients’ needs, whatever the circumstances may be, is something we take very seriously.

Brenda Hamilton from our Sacramento laboratory location and Jaime LaFave from our Fresno laboratory location met with  the City of Davis staff on a Saturday afternoon last month and successfully assisted with an emergency situation that required a quick response, quick action and quick results turn-around.

“…the City needed emergency assistance and your team provided much needed professionalism and support.”

As a company, we feel it’s important to acknowledge one another’s efforts and achievements when something stands out. Everyone likes to know that their effort has some value. So we were pleased to find this letter in our mailbox acknowledging the effort and dedication of our team.

Click here  to read the full letter from the City of Davis.

Environmental Analytical Laboratory Expands Testing and Service Offerings in 2019!

We are pleased to announce that our Analytical Laboratory in Fresno has expanded testing capabilities of drinking water. We are now ELAP certified for Low-Level Perchlorate by EPA 331 and PFAS by EPA 537 (PFBS, PFHpA, PFHxS, PfNA, PFOA, PFOS) testing.

In addition, we have expanded our field service offerings in the greater Fresno area to include NPDES discharge sampling, 24-hour composite wastewater sampling and local limit study sampling. Please see our Field Services page for details.

Renea Rangell – New Vice-President of Laboratory Services

Renea Rangell, Vice-President of Laboratory of Services, will provide leadership and oversight for all BSK’s Laboratory operations, Client Services, Project Management and sales staff.  She is passionate about data quality and providing excellent customer service which has led her to this strategic role within BSK.  Renea previously held the role of Director of Laboratory Services at the Vancouver, WA, location; Client Services Manager in the Fresno, CA laboratory and successfully restructured the department to deliver a strong professional experience for clients by strategically hiring Project Managers with varying expertise in the Environmental industry.

BSK Associates

Renea has served as a BSK Trustee and is currently a member of the BSK Board of Directors.



BSK Welcomes Belinda Vega

BSK is proud to announce the addition of Belinda Vega to our Fresno Analytical location as the new Laboratory Director.  Belinda has over 30 years of environmental laboratory experience including quality and client services, national accounts, operational and financial management.

BSK Welcomes Alejandra Montaño

BSK Associates is proud to announce the addition of Alejandra Montaño to our Southern California Laboratory Team!

Alejandra has environmental laboratory experience in project coordination and field services.

In her new role, Alejandra will serve as the BSK San Bernardino Laboratory Project Coordinator.

If you need to reach her, please call:  909-796-2059 or email her at:

Welcome to the BSK Team Alejandra!