U.S. Code of Federal Regulations
Regulations most recently checked for updates: Oct 04, 2023
FINISHED WATER RESERVOIRS
ADDITIONAL WATERSHED CONTROL REQUIREMENTS FOR UNFILTERED SYSTEMS
§ 141.521 - What updated watershed control requirements must my unfiltered system implement to continue to avoid filtration?
§ 141.522 - How does the State determine whether my system's watershed control requirements are adequate?
§ 141.535 - What if my system uses chloramines, ozone, or chlorine dioxide for primary disinfection?
§ 141.542 - What must my system do if we are considering a significant change to disinfection practices?
§ 141.544 - What if my system uses chloramines, ozone, or chlorine dioxide for primary disinfection?
COMBINED FILTER EFFLUENT REQUIREMENTS
§ 141.552 - My system consists of “alternative filtration” and is required to conduct a demonstration—what is required of my system and how does the State establish my turbidity limits?
§ 141.553 - My system practices lime softening—is there any special provision regarding my combined filter effluent?
INDIVIDUAL FILTER TURBIDITY REQUIREMENTS
§ 141.562 - My system only has two or fewer filters—is there any special provision regarding individual filter turbidity monitoring?
§ 141.563 - What follow-up action is my system required to take based on continuous turbidity monitoring?
§ 141.564 - My system practices lime softening—is there any special provision regarding my individual filter turbidity monitoring?
REPORTING AND RECORDKEEPING REQUIREMENTS