The NEW Excelchem Laboratories, Inc. is a chemical, environmental and microbiological commercial testing laboratory. Excelchem is certified by 3rd party EPA accreditation boards and provides independent – unbiased testing data.  We focus on water, soil and food sample testing for environmental, safety and construction standards compliance.

In 2019, Excelchem became an affiliate of Silver State Analytical Laboratories, Inc. with common ownership of both companies.  Prior ownership of Excelchem Environmental Laboratory retired in 2019, and we are proud to offer the NEW Excelchem.  Under the Silver State Analytical core values and mission to promote the best for clients and team members, we are leveraging the best of legacy staff, equipment, methods and facilities at the Rocklin laboratory and supplementing that with the proven approach from Silver State Analytical of commitment, top talent, capital investment, and best in class systems for client service and team member development and retention.

Since 1991, Excelchem has been providing expert analyses, free consultations, and responsive service to clients in the environmental, engineering, utility, water, waste, construction, process, healthcare, and manufacturing industries.

Extensive in-house capabilities providing high quality testing of wastewater, soil, drinking water, air toxins, industrial chemicals, hazardous materials, as well as advanced microbiological testing.  Our staff is dedicated to service, integrity, sharing, and continuous improvement.  We offer enhanced field services, equipment and full project support.  

Excelchem Laboratories, Inc. provides:

  • Fast – accurate test results
  • Analytical Consultation
  • Quick Turnaround Times
  • Electronic Data Deliverables
  • Custom Reporting Formats
  • Quality Control Data
  • Sample Bottles and Preservatives
  • Field Services – Courier Services
  • Service and personal attention that is best in the industry!

Quick Turnaround Time

Timely sample analysis contributes to effective project management, allowing you to complete your project on time and within budget. 

  • Eliminate later re-sampling and re-analysis
  • Allow relocation of sampling points while sampling is in progress
  • Reduce heavy equipment costs
  • Assure sample integrity by processing samples on-site
  • Open and close excavations on the same day

Staff Resources

Excelchem has assembled a qualified staff of experienced laboratory professionals. Our technical staff has expertise in such diverse fields as chemistry, microbiology, geology, environmental toxicology, engineering, water treatment operations, computer science, and statistics. 

Volume Discount/Pricing Policies

We keep our fee schedule as uncomplicated as possible. Whether it is soil or water, we charge the same fee. Our standard prices are based on a 7 working day turnaround time. We also offer 2-8, 12, 24, 48, and 72-hour turnaround times as well as Saturday rush services. Discounts from the price list are available for large projects and repeating sample sets – please call us for more information. 

Facilities, Mobile Laboratory Services, and Equipment

Excelchem has its main facility in Rocklin, California, which occupies over 12,000 square feet of laboratory and office space. We operate a full complement of state-of-the-art instrumentation and are capable of performing projects of any size and type.  For your convenience – we also have equipment depots in Rancho Cordova and Martinez, California. Our Nevada companies operate full service labs and service centers in Reno, Elko, and Las Vegas, Nevada.

Excelchem also offers on-site analysis in our certified mobile laboratories, providing accurate, cost-effective testing. 


Chain of Custody Form – Excelchem Laboratories
Air Laboratory Services


CA Certifications-Sacramento

Contact Excelchem Laboratories, Inc.

Excelchem Team 9-19-19

Excelchem Laboratories, Inc. (a Silver State Analytical Company)
1135 W Sunset Blvd., Suite A Rocklin, CA 95765
Phone: (916) 543-4445
Fax: (916) 543-4449

Joe Trapasso, III – Business Unit Leader / Director of Operations
(916) 543-4445

We also have Laboratories and Service Depots in North Lake Tahoe, Rancho Cordova & Martinez, California and Reno, Elko & Las Vegas, Nevada.