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Virginia Administrative Code
Title 1. Administration
Agency 30. Department of General Services
Chapter 41. Regulation for the Certification of Laboratories Analyzing Drinking Water
12/31/2024

1VAC30-41-440. Analytical methodology.

A. Drinking water laboratories shall meet the sampling and analytical methodology requirements incorporated by reference into 1VAC30-41-55 for microbiology and alternative testing methods for microbiology.

B. Drinking water laboratories shall meet the requirements of Chapter V, Section 5 of the Manual and the Manual Supplement to Chapter V, Section 5 of the Manual unless these requirements conflict with the requirements specified in subsection A of this section.

C. A drinking water laboratory shall perform a minimum of 20 coliform analyses monthly by each coliform method for which it is certified in order to maintain certification status or qualify for initial certification. The minimum number of coliform analyses (20) may be performed on a variety of water sample types collected from different stages of the water treatment process, raw source water, and surface or ground water, as well as drinking water samples collected from a distribution system or private wells.

Statutory Authority

§§ 2.2-1102 and 2.2-1105 of the Code of Virginia; 42 USC § 300f et seq.

Historical Notes

Derived from Virginia Register Volume 30, Issue 14, eff. May 1, 2014.

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