Positive Lab Service

Positive Lab Service is a highly specialized environmental laboratory that provides analytical testing to support compliance, assessment, and remediation projects. Its services are designed for environmental consultants, engineers, construction and energy businesses, waste management organizations, private-sector clients, and public agencies. The laboratory offers testing across organics, including volatile compounds and extractables, soil vapor, inorganics, metals and cations, and wet chemistry.

Based in downtown Los Angeles, Positive Lab Service combines specialized scientific expertise with state-of-the-art facilities and personalized customer service. The company emphasizes accurate, timely results, prompt responses, cost-effective service, and a single point of contact for clients. It promotes a five-business-day turnaround alongside rapid-response services. Positive Lab Service states that its data are accurate and legally defensible, supporting dependable decision-making in environmental work. The laboratory is certified by the California State Water Resources Control Board and lists certifications and permits from California, the Los Angeles County Sanitation District, and the U.S. Department of Agriculture, including mobile laboratory accreditation.