Built on Experience. Focused on Compliance.

Founded in 2002, Robertson Testing has grown into one of California’s trusted providers of underground storage tank (UST) compliance services. Today, we proudly support more than 300 petroleum facilities throughout Southern and Northern California, providing regulatory compliance solutions that help our clients operate safely, efficiently, and in full compliance.

Our success has been built on one simple philosophy: provide exceptional service and build lasting relationships. We understand that compliance is more than completing a required inspection—it’s about protecting our clients’ businesses, reducing regulatory risk, and providing dependable support they can count on.

Our certified field technicians, experienced compliance specialists, and dedicated administrative teams work together to ensure every project is completed accurately, professionally, and on schedule. From proactive compliance scheduling and regulatory testing to environmental reporting, permitting assistance, and violation abatement, we manage the compliance process so our clients can focus on running their business.

Whether you own a single fueling facility or oversee a portfolio of hundreds of locations, Robertson Testing has the experience, infrastructure, and commitment to deliver responsive service and consistent results across California.+