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Certes Environmental Laboratories, L.L.C. (Certes), is an independent analytical testing laboratory located in Carrollton, Texas.  Certes is validated by the U.S. Army Corps of Engineers, was audited by the Texas Commission on Environmental Quality (TCEQ), and is certified by the states of Oklahoma and Arkansas to perform environmental testing.  We are also certified by the State of Texas General Services Commission as a "Historically Underutilized Business", and by the North Central Texas Regional Certification Agency and various other states and entities as a "Woman-Owned Business Enterprise”. 

We provide an array of environmental chemistry and analytical support services to environmental professionals within the private and public sectors throughout the United States.  Services cover analytical needs ranging from compliance to assessment and remediation to site closure, including:  Inorganic and organic analyses; lead in paint, wipes and soils; analytical special studies; microbiological services; and environmental matrices (liquid, soils, air, etc.).

Certes is committed to quality control and customer service. We incorporate independent services to provide certified reference material and maintain internal "blind" quality assurance samples in liquid and solid matrices.  We were recently recognized for 99% accuracy on the most recent WP on 126 analytes (national average was 91%); 100% demonstrated on recent TX 1006 proficiencies; and 100% accuracy for soil VOC, SVOC and metals proficiencies (done voluntarily by Certes).  We utilize the American Standard Testing Method (ASTM), the U.S. Environmental Protection Agency (EPA) methods and quality assurance protocols, Standard Methods for Water and Wastewater, and follow the EPA's quality assurance protocol to provide analytical results that you can trust.

Your account receives personal attention from a senior member of our staff who is responsible for managing each of your projects.  This assignment ensures their ability to discuss all aspects of your project from start to finish, including data interpretation.

Certes has expanded its facilities to 16,200 square feet, increasing space for its metals and general chemistry departments and creating a new glassware wash facility.  Upgrades include an enclosed positive-pressure volatiles laboratory completely isolated from the semi-volatile and extraction laboratories.  This laboratory, in conjunction with the negatively pressured extraction and sample preparation laboratories, was designed to reduce the possibility of cross contamination.

Our capacity and our ability to meet emergency turnaround times have been enhanced substantially by the acquisition of instrumentation and the incorporation of automation in sample preparation and analysis.  In the Organic Laboratory, five (5) Gas Chromatograph (GC) Purge & Trap for volatiles analysis; Six (6) Gas Chromatograph/Mass Spectrometers (GC/MS), three (3) dedicated to volatiles, three (3) to semivolatiles, and four (4) GCs with FID for petroleum analyses. Inorganics’ recent acquisitions include a second Inductively Coupled Plasma Spectrophotomer (ICP), one (1) Ion Chromatography (IC) for Anion and Perchlorate, and three (3) Hot Block Digestors and Mercury Analyzer, with autosampler, minivap distillation for Cyanide, Phenols and Nitrogens.

Certes is bringing data to the next level! TRRP 13 Guidance document became effective in February 2003.  Data validation and reporting, comparison to PCL’s and APAR tables have added complexity and increased the level of effort and time for the data user. Let  Certes be your inTRRPreter^TM.

• Scrub sample results against TRRP PCL's
• User selectable criteria for site size, land use and pathways of exposure
• User selectable concise report identifies:
  • Only values exceeding TRRP PCL's, or
  • All detected results, plus SQL>PCL's, or
  • All results, including non-detect, plus SQL>PCL's
• Ability to auto-populate APAR Tables 1 and 6
• Autogeneration of Laboratory Review Checklist (LRC)

TRRP is bringing data to a whole new level of reporting and documentation, and Certes stands ready to bridge the gap with inTRRPreterÔ.              

All of the members of our laboratory staff have extensive education and technical training in their fields, which account for over 95 years of combined experience.  Our philosophy is client service satisfaction, and our commitment to perform outstanding analytical services is acknowledged from the Chief Executive Officer (CEO) to the preparation technician.  We are “certain” (where the name Certes is derived) that you will be pleased!