Big Announcement!

After over 30 years at the same location, Truesdail Laboratories, Inc. is moving! Starting April 24, 2015, we will begin the move of our laboratories from its current location in Tustin to a new, state of the art facility located in Irvine. By using strategic planning that began earlier this year, we anticipate minimal disruption in providing you with our analytical and certification services.

Our new facility, at approximately 17,000 square feet, is designed with efficiency as a priority. With the customer in mind, the carefully planned out layout of the laboratories will result in reduced turn-around times. Truesdail Laboratories, Inc. will continue to provide all the analytical and certification services that we currently perform.

After April 27, 2015, our new contact information will be:

3337 Michelson Drive, Suite CN750
Irvine, California 92614

The current telephone number, ((714) 730-6239) webpage (, and e-mail addresses will not change.

Shortly after we have made the transition into the new facility, Truesdail will hold an open house so that you will be able see the exciting changes we have made. An invitation will be sent out once a date has been set. Should you have any questions or concerns, please feel free to contact us.

Why Choose Truesdail?

Experience - Today's world of increasing environmental concern means tightened regulations and increased levels of liability. Compliance with regulations is imperative yet complicated and frequently changing.

We have provided answers to scientific questions for over 80 years and have years of liaison experience with most regulatory agencies.

Our expertise, facilities, and state-of-the-art equipment provide the accurate answers you need. Regulation and compliance, product testing, field services, project management, expert witness testimony - Truesdail does it all. We help reduce the hassles in doing business.

Quality - Answers are worthless if they cannot be relied upon. Truesdail gives you the confidence that comes with our reputation for excellence.

Our Quality Assurance objectives for precision and accuracy are based on results from the analysis of samples whose values are known. One in every ten samples are run in a quality assurance sample and the results are compared to establish control limits. Thus we have ample documentation for system blanks, check samples, matrix spikes, and duplicates.

We also participate in several external Quality Control programs, which submit blind samples periodically. Our excellent track record is then independently verified.

Location - Our facility is located in Irvine, CA in the heart of Orange County. We are within easy driving distance of four major airports (John Wayne, LAX, Long Beach, and Ontario) and the Port of Long Beach. Please see our location for more information.

Truesdail's New Accreditations and Listings

We are pleased to announce our newest Accreditations and Listings:

Truesdail Laboratories, Inc. is gratified by the news that RMTC issued a formal notice of accreditation to our laboratory. We extend a formal "Thank you!" to the RMTC for recognizing us as compliant with their high standards for testing racehorses and allowing us to join the ranks of the relatively few organizations that share their approval. We appreciate the opportunity to celebrate another milestone in our 70+ year history of providing drug testing for the racing industry. See the RMTC Press Release here.

Our commitment to maintain the highest level of competence in testing requires constant vigilance. Over six years ago, we began modernizing our instruments and methods to state-of-the art, sought accreditation to the international ISO/IEC 17025 standard. Early last year we applied for accreditation from RMTC and now we are part of their goal of having 100% of racing laboratories accredited by the RMTC.

Truesdail's Newest Instrument Addition

We are pleased to announce our new Ultra Sensitive LC/MS is now online!

New Certifications Offered by Truesdail

  • We can certify your plumbing products for compliance to California AB 1953 (2006) also referenced as: "Health and Safety Code Section 116875-116880".