R309-210-4. General

(1) Each supplier shall monitor its water to determine compliance with water quality requirements according to Rule R309-200. In exceptional circumstances the director may modify the monitoring requirements in Rule R309-210 as is deemed appropriate. (2) The director may determine compliance or initiate compliance actions based upon analytical results and other information compiled by authorized representatives, and a supplier must keep analytical records in their possession for a required length of time outlined in Section R309-105-17. (3) If a supplier fails to meet minimum standards, it shall carry out certain public notification procedures outlined in Rule R309-220. (4) A supplier shall take samples at representative sites as specified in Rule R309-210 for each contaminant or group of contaminants. (5) To determine compliance, the division may only consider samples if they have been analyzed by the State of Utah primacy laboratory or a laboratory certified by the Utah State Health Laboratory. (6) Measurements for pH, temperature, turbidity and disinfectant residual may, under the direction of the direct responsible operator, be performed by any water supplier or water supplier's representative. (7) Each supplier must mark either: routine, repeat, check or investigative before submission of such samples to a certified laboratory. Each supplier shall consider routine, repeat, and check samples as compliance purpose samples. (8) Suppliers may send each sample result to the division either electronically or in hard copy form. (9) Unless otherwise required by the director, each supplier shall initiate required monitoring identical to the dates published in 40 CFR 141 on July 1, 2025. (10) The division may grant an exemption from monitoring requirements only in accordance with Section R309-105-5.