40 CFR § 141.562 National Primary Drinking Water Regulations

§ 141.562 My system only has two or fewer filters—is there any special provision regarding individual filter turbidity monitoring?

Current through Aug 22, 2025 · Read all of Part 141

⚠ 4 pending changes to Part 141

Yes, if your system only consists of two or fewer filters, you may conduct continuous monitoring of combined filter effluent turbidity in lieu of individual filter effluent turbidity monitoring. Continuous monitoring must meet the same requirements set forth in § 141.560(a) through (d) and § 141.561.

← § 141.561 What happens if my system's turbidity monitoring equipment fails?§ 141.563 What follow-up action is my system required to take based on continuous turbidity monitoring? →