NELAP Accreditation


The National Environmental Laboratory Accreditation Conference (NELAC) was established on February 16, 1995 by State and Federal officials under the auspices of the United States Environmental Protection Agency (USEPA) as an accreditation standards setting organization to support a National Environmental Laboratory Accreditation Program (NELAP).  The mission of this program is to ensure rigorous and uniform quality assurance systems and standards in procedures and practices in environmental laboratories across the nation.

The NELAP program has since transitioned into an independent program administered by The NELAC Institute (TNI) which oversees fifteen accrediting authorities in fourteen states. Since Missouri does not yet have an accrediting authority, Total Water Laboratories (TWL) is a certified laboratory through the New Hampshire Environmental Laboratory Accreditation Program (NH ELAP), which is formally recognized as a NELAP accrediting authority.


Total Water Laboratories (TWL)

TWL has built its quality assurance program on the 2003 NELAC Standards requirements with legal defensibility in mind. This means that TWL has met or exceeded the requirements of the NELAC standards in every procedure and practice in order to ensure not only the quality and reliability of the data and results produced by TWL, but also the ability of the test results to be held under the scrutiny of a court of law. This guarantees peace of mind for our clients, knowing that their test results are of the highest quality and defensibility.

TWL is Central Missouri’s leader in providing legally defensible environmental testing results as it is the ONLY NELAC accredited laboratory in the Lake of the Ozarks and central Missouri area, and one of only three in the entire state of Missouri. This means that the results provided by TWL are of higher quality than any other environmental laboratory in Central Missouri.