CFR›Title 40›Chapter I›Part 141›Subpart T›Subject Group Reporting and Recordkeeping Requirements ContainsSections 141.570–141.571CorpusDaily eCFRDisplayed edition2026-04-27Last updated2026-04-27 Sections 141.570 § 141.570 What does subpart T require that my system report to the State? 141.571 § 141.571 What records does subpart T require my system to keep? Previous Individual Filter Turbidity Requirements Individual Filter Turbidity Requirements