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MAI will be closed on Monday, May 25th, 2026, in observance of the Memorial Day Holiday. Please check with us should you have questions about turnaround times &/or testing capabilities during these lab closures.
McCampbell Analytical, Inc. (MAI) provides advanced organic lead testing for environmental investigations involving historical leaded gasoline impacts, underground storage tank (UST) sites, former fuel facilities, and redevelopment projects. Our laboratory analyzes environmental samples for organic lead compounds including tetraethyl lead (TEL) and tetramethyl lead (TML) using sensitive GC-MS/MS instrumentation with enhanced selectivity and low-level detection capabilities.
Organic lead compounds may persist in soil and groundwater at former fueling locations and industrial sites, creating potential concerns during environmental assessment and remediation activities. MAI supports consultants, regulatory agencies, and remediation contractors throughout California with reliable analytical data for site characterization, monitoring, and compliance-driven investigations. Dedicated GC-MS/MS instrumentation allows for enhanced analytical capacity, sensitive low-level detection capabilities, and expedited turnaround times for time-sensitive projects.
MAI’s tetraethyl lead analytical capabilities achieve Arizona Department of Environmental Quality (ADEQ) soil LUST screening levels of 0.006 mg/kg, supporting low-level environmental investigations and remediation projects requiring highly sensitive detection limits.
| MAI OPb Reporting Limits | ||
|---|---|---|
| Water (ug/L) PQL | Soil (mg/kg) PQL | |
| Tetramethyllead | 0.05 | 0.002 |
| Tetraethyllead | 0.05 | 0.002 |
In the 1920's, Tetraethyllead (TEL) was introduced to the petro-fuel industry as an automotive antiknock agent. It was selected because it was both inexpensive and highly efficient in increasing vehicle performance.
The pros of its efficacy were later outweighed by the cons of its toxicity. Numerous cases have been documented of deaths associated with exposure to lead vapors. One notable case took place in a New Jersey refinery where 17 employees died from lead poisoning.
Leaded gasoline was produced in the US for decades until the US Clean Air Act declared it banned for automotive use in 1996. In some countries, the ban wasn't implemented until years later.
Today we are still attempting to minimize the health risks associated with the residual effects of leaded gasoline. Screening of organic lead compounds are required for sites which have used or sold leaded gasoline in the past before they are used for residential or commercial occupancy.
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