Zalco Laboratories provides accurate, timely and cost-effective environmental compliance and production chemistry testing services for petroleum, power, agriculture, government, and other clients.

  • Greenhouse gases – AB32 / California Air Resources Board Procedure for Flash Emissions of Greenhouse Gases and Other Compounds from Crude Oil and Natural Gas Separator and Tank Systems.
  • Chemistry analyses – vapors and gases; NGL, crude, and refined petroleum; products and biofuels.
  • Water and liquid analyses – formation and oilfield produced waters; drilling and completion fluids; process, waste and discharge waters; ground water monitoring and storm water; municipal; drinking waters, irrigation water.
  • Solids – organic, inorganic, and metals analysis.
  • Hazardous waste characterization and related testing of gases, waters, liquids, solids, and petroleum matrices – including Volatile and Semi-Volatile Organics; Pesticides and PCBs; BTEX, MTBE, and metals.

Our 30+ years’ reputation for quality comes from an expert staff of environmental testing professionals who understand your needs and work hard to deliver the results you expect. Our clients also appreciate the way that we work collaboratively to come up with tests that meet specific needs.

Zalco is accredited by the California Environmental Laboratory Accreditation Program (ELAP).

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About Zalco Laboratories

Zalco Laboratories was founded in 1979 by John Zaletel, Ph.D and Jim Etherton. What started as a small, independent testing lab for the petroleum industry in Central California quickly grew into a full-service, state-of-the-art testing facility.

Our Services

Zalco Laboratories provides accurate, timely and cost-effective environmental compliance and production chemistry testing services for petroleum, power, agriculture, government, and other clients.

Case Studies

For over thirty years Zalco has provided environmental compliance and production chemistry testing for California and Western U.S. clients. We can provide customized testing packages and reporting formats for your unique needs.

Case Study Samples

Location Bakersfield, CA

Zalco Laboratories is conveniently located in California’s Central Valley, just off Highway 99 in Bakersfield. Our centralized location means we can easily provide services to businesses and government entities throughout the state.

Our Bakersfield-based field technicians drive monthly routes covering San Ardo. Our team is also available for individual call-outs and customized route schedules.

Contact Us

Address: 4309 Armour Avenue
Bakersfield, CA 93308
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