ELTAC Topics

The Environmental Laboratory Technical Advisory Committee (ELTAC) is a multidisciplinary committee appointed by Division of Drinking Water management to . provide constructive scientific advice and feedback to ELAP and the California regulatory agencies who use laboratory data to make decisions to protect the state’s environmental and public health.


Method Development Request from Central Valley Regional Board

The Central Valley Regional Water Quality Control Board’s Irrigated Lands Regulatory Program is soliciting laboratories to develop and validate new or alternative methods for the detection of imidacloprid in whole water (unfiltered) samples from surface waters and wastewater effluent. The program requested feedback from ELTAC in developing the request letter which identifies specific requirements that the laboratory’s modified or developed method must meet as part of the validation package.

Laboratories interested in participating should review the request letter and reach out to the listed contacts for further information. Note that validation packages submitted by 24 December 2021 will be given priority for review and approval.

Method Detection Limits

Procedural Recommendations

Subcommittee on Quality Management System (12/20/18)

Informal Workgroups

Field of Testing Lists

  • ELTAC Report (6/15/16)

    ELAP Requests Comments on Proposed Changes to Structure of Fields of Testing Worksheets (1/10/17)

    ELAP is requesting comments regarding proposed changes to the structure of ELAP's Field of Testing (FOT) worksheets.

    The Environmental Laboratory Technical Advisory Committee (ELTAC) is recommending a structural change whereby ELAP's FOT worksheets are arranged by analyte (as opposed to the current version where FOT's are arranged by method). View the draft FOT 101: Microbiology of Drinking Water for an example. ELAP is requesting general feedback on the proposed structure, as well as comments on overall ease of use and practicality.

    Please submit comments to ELAPCA_Comments@waterboards.ca.gov and indicate "Proposed Changes to FOT Worksheet Structure" in the subject line.