318-220-9067
(800)256-6110

Chain of custody (pdf)

Chain of custody instructions

Chain of Custody  (EXCEL)

The GSEL family are all dedicated to high quality environmental analysis.  Our team is here to serve you on a personal basis so contact us today to become part of our family.

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  • TCLP
  • RCRA
  • Priority Pollutants
  • Oilfield Waste 
  • Trace Metals Analysis
  • ​Organics
  • Total Petroleum Hydrocarbons
  • Grease Trap Testing
  • ​Lead Paint
  • Soil Testing
  • Water & Wastewater Testing
  • Sample Collection & Pickup
  • Pipeline Hydro-Test Water Sampling
  • LDNR 29B 
  • ​Spill Testing
  • ​Discharge Monitoring Reports
  • Storm Water Testing
  • Well Water Testing

ENVIRONMENTAL SERVICES  -------------


Gulf States Environmental Laboratories

Gulf States Environmental Laboratories (GSEL) is a full-service environmental laboratory. Since 1998, GSEL has specialized in providing individuals and companies with a wide range of laboratory services from municipality waste-water testing to LDNR-29B pit closures.

GSEL has a friendly, outstanding staff with many years of combined experience in the environmental laboratory business. We pride ourselves on service, dependability, and quality of work.  We are willing to help resolve any questions or concerns that clients may have. This willingness, combined with our understanding of the importance of accurate data for your decision making, sets GSEL apart from other laboratories.

We look forward to serving you!