Louisiana Administrative Code
Title 48 - PUBLIC HEALTH-GENERAL
Part V - Preventive Health Services
Subpart 28 - Drinking Water Laboratories
Chapter 80 - Certification of Laboratories Performing Drinking Water Analyses
Subchapter C - Criteria and Procedures for Chemical Testing and Analysis
Section V-8055 - Methodology and Method Validation

A. Laboratories which have received certification or are seeking certification to perform any of the required chemical analyses, shall use the test procedures specified in 40 CFR Parts 141 and 143 for the analysis of drinking water parameters. Additionally, the laboratories shall comply with the requirements in Chapter IV of the USEPA Manual for the Certification of Laboratories Analyzing Drinking Water.

B. The laboratory shall list, in its quality manual, and have on-hand the standard operating procedures (SOPs) for each analytical method used. This listing should include the name of the method and a complete reference as to the source.

C. Applicable SOPs shall be available in the laboratory at the analyst's work station.

D. The laboratory shall validate reference methods via the procedures specified in Chapter IV of the USEPA Manual for the Certification of Laboratories Analyzing Drinking Water.

E. Prior to the acceptance and institution of any method, a satisfactory initial Demonstration of Capability (DOC) shall be performed by the laboratory pursuant to the requirements in the approved reference method(s) specified in 40 CFR Parts 141 and 143 for the analysis of drinking water parameters. Documentation shall be maintained by the laboratory for the initial and any ongoing DOC.