US lawUtahRegulationsAgency 13 — Environmental QualityProgram 309 — Drinking WaterR309-520 — Facility Design and Operation: DisinfectionR309-520-3R309-520-3R309-520-3. DefinitionsLast amended: 2025Length: 18 wordsOfficial source Cite as Utah Admin. Code R309-520-3Definitions for certain terms used in this rule are given in R309-110 but may be further clarified herein.PreviousR309-520-2NextR309-520-4