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CQA – Laboratory Audits

Laboratory Auditing

Environmental Standards, Inc. offers third-party laboratory auditing by our in-house Quality Assurance Chemists.

Laboratory audits are an important tool for assessing liabilities that may arise from using a commercial laboratory. Environmental Standards’ dedicated Quality Assurance Chemists have performed hundreds of analytical laboratory audits nationally and internationally at the request of industry, law firms, engineering firms, and even the laboratories themselves to enable them to meet their internal QA/QC requirements.

Consider us the “Watch Dog” for your analytical data. 

Why us

On-Site Laboratory Audits

Our laboratory audits are extremely rigorous and significantly exceed regulatory-based and ISO Standard 17025 requirements. Further, while audits required under the National Environmental Laboratory Accreditation Program (NELAP) are necessary for NELAP accreditation, the extent and frequency of the NELAP-based audits are not sufficient for assessing project work liabilities that may arise in a particular program or for a specific project. When conducting laboratory audits, Environmental Standards Quality Assurance Chemists evaluate laboratory performance relative to client expectations, liabilities, and company policy, and then mandate and track the appropriate corrective actions.

lab audit water

Areas of Laboratory Operations:

  • Facilities and equipment.
  • Organization and personnel qualifications.
  • Written analytical and non-analytical SOPs and QA plans.
  • Sample administration area and the procedures for entering sample information into the laboratory information management system (LIMS).
  • Sample storage areas.
  • Sample preparation areas.
  • QA/QC Department.
  • Organic and inorganic instrumentation and wet chemistry areas.
  • Data reduction and data package preparation.
  • Data storage areas (hardcopy and electronic).
  • Client services and data inquiry services.

Client Benefits

Environmental Standards has conducted on-site audits of hundreds of domestic (including facilities in Alaska, Hawaii, and Puerto Rico) and international laboratories (including facilities in Argentina, Australia, Belgium, Canada, France, Germany, Hungary, Indonesia, Malaysia, Mexico, Norway, South Korea, and United Kingdom). International audits require a high-level of expertise to evaluate good analytical practices effectively because many foreign countries do not standardize regulatory methods.

Professional Contacts

Gary Yakub


Gary Yakub

Senior Quality Assurance Chemist

For more information you can reach him at

Stephen Zeiner, CEAC

Senior Technical Chemist