- A. Water temperature within the water treatment plant shall be measured using a thermometer, thermocouple, or other temperature measuring device having a minimum accuracy of ±0.5 degrees Celsius (0.5°C).
- B. Service thermometers, thermocouples, and other temperature measuring devices used for determining water temperature within the water treatment plant shall be validated at a frequency of once per month using a field thermometer that has been calibrated annually against a NIST certified thermometer. The NIST certified thermometer shall be sent back to the manufacturer for recalibration at least once every three years.
- C. Records of validations/calibrations on each temperature measuring device shall be maintained for at least three years.
Authority Note
AUTHORITY NOTE: Promulgated in accordance with R.S. 40:4(A)(8) and 40:5(5)(6)(17)(20).
Historical Note
HISTORICAL NOTE: Promulgated by the Department of Health and Hospitals, Office of Public Health, LR 28:1340 (June 2002, amended LR 28:2518 (December 2002), LR 30:1195 (June 2004).