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ACCREDITATION-BY-RULE

For the purposes of determining compliance with the requirements of Chapter 109, samples must be analyzed by a laboratory accredited by the Department, with the exception of the following accreditation-by-rule parameters (Chapter 109.304(c)):

  • Turbidity
  • Residual disinfectant concentration
  • Temperature
  • pH
  • Alkalinity
  • Orthophosphates
  • Silica
  • Calcium
  • Conductivity
  • Daily chlorite
  • Magnesium hardness
  • Fluoride for fluoridation operation

The accreditation-by-rule parameters do not need to be analyzed by an accredited lab, but they must be analyzed by one of the following:

  • A properly certified operator
  • A person operating under a standard operating procedure from a properly certified operator
  • An environmental laboratory, accredited for these parameters in accordance with Chapter 252

Samples must be analyzed using approved analytical techniques (Chapter 109.304(a)).

RESIDUAL DISINFECTANT CONCENTRATION:

In addition to analyzing residual chlorine samples under an approved analytical method, systems must also follow EPA Method 334.0.