1. A. Public water systems which provide treatment (other than chlorination) to the water shall provide an approved chemical laboratory/drinking water on-site or make contractual arrangements with an approved chemical laboratory/drinking water off-site to analyze and report results for certain physical and chemical analytes which are not required to be analyzed in a certified chemical laboratory/drinking water.

   1. 1. All samples collected for compliance determination shall be either analyzed in a certified chemical laboratory/drinking water or in an approved chemical laboratory/drinking water. Samples collected for compliance determination which are allowed to be analyzed in an approved chemical laboratory/drinking water include the following:

      1. a. daily chlorite levels (at the point of entry to the distribution system when using chlorine dioxide);
      2. b. daily fluoride levels;
      3. c. daily corrosion inhibitor concentrations (orthophosphate and silica);
      4. d. pH;
      5. e. calcium;
      6. f. conductivity;
      7. g. temperature;
      8. h. alkalinity;
      9. i. turbidity;
      10. j. jar test for ACC #6 (as per §1311.B of this Part);
      11. k. jar tests for determining optimum coagulant dose (including Step 2 TOC removal per §1309 of this Part); and
      12. l. other drinking water analytes which are not required to be analyzed in a certified chemical laboratory/drinking water under other requirements of this Part or USEPA requirements.
2. B. In order to ensure an accurate and true representation of the level of an analyte associated with drinking water, the requirements of Subsection A of this Section shall not be construed to allow an approved chemical laboratory/drinking water off-site to perform a physical or chemical determination of an analyte when such analyte cannot be satisfactorily fixed, preserved, or transported (e.g., disinfectant residual levels, etc.).
3. C. An approved chemical laboratory/drinking water shall perform all analyses using the laboratory methodology specifically required to be used under the provisions of this Part for such analyte.

Authority Note

AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(8)(13) and 40:5(2)(3)(5)(6)(17)(20).

Historical Note

HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 30:1199 (June 2004), amended LR 42:413 (March 2016).