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Caltest has enjoyed a solid reputation with regulated dischargers and water monitoring specialists since 1986.
Caltest was founded in 1974. It was purchased by the current ownership in 1982. In 1982 the initial client base consisted of drinking water analysis, agriculture and Wine analyses. By 1986 the laboratory had moved into providing services for wastewater treatment plants and their regulated industries.
In 1988 the laboratory moved from Sonoma California to its current location in Napa California. At this time Caltest started at pretreatment program for the City of Calistoga and expanded its client base to include numerous regulated industries. Starting in 1988 the lab invested heavily in state-of-the-art equipment for low-level metals, nutrients and automated BOD analysis.
During the 1990s many other environmental labs went out of business. Caltest used this opportunity to acquire excellent chemists who have stayed with our company over the years. During the 1990's the laboratory fought to keep market share by attention to quality and service, while many other labs relied heavily on deep discount pricing. By 1999 Caltest was the survivor and the leading Northern California laboratory for low-level environmental compliance analysis in the Bay Area and Sacramento corridor.
In 2000 Caltest became the first commercial laboratory to provide cold vapor atomic fluorescence (CVAF) low-level mercury test analysis in the State of California.
Caltest invested heavily in clean sample handling techniques for the metals department to enable us to run the lowest commercial environmental metals analyses in the State. All of our routine low-level metals production went to ICP-MS in 2001.
Caltest started on work to meet the calibration criteria of the California Toxics Rule and the State Implementation Plan for very low-level Minimum Levels. In 2002 Caltest was the first lab in the state to meet all of these criteria for each set of analytes on the SIP lists.
In 2002 Caltest added Perchlorate analysis making it one of the first laboratories in the State offering it commercially. Caltest purchased equipment specifically for the analysis of Perchlorate, this allowed us to calibrate down to one ppb offering one of the lowest reporting limits available among commercial laboratories.
By 2003 Caltest had expanded to include clients throughout the California Central Valley and all of the Greater San Francisco Bay area.
In 2004 Caltest offered Pyrethroid Pesticide analyses by GCMS/SIM at the lowest levels commercially available.
2004 also saw the development of our in-house Methyl Mercury analysis.
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