{"data":{"id":"us/40-cfr-141.553","jurisdiction":"us","citation":"40 CFR 141.553","heading":"My system practices lime softening—is there any special provision regarding my combined filter effluent?","body":"If your system practices lime softening, you may acidify representative combined filter effluent turbidity samples prior to analysis using a protocol approved by the State.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER D—WATER PROGRAMS","PART 141—NATIONAL PRIMARY DRINKING WATER REGULATIONS","Subpart T—Enhanced Filtration and Disinfection—Systems Serving Fewer Than 10,000 People"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"7c90285dcac5ad7f376b5729dd880f82c78e9ca234846aa8f70d086237bcf072","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-141.552","next":"us/40-cfr-141.560"},"notice":"GroundRules: Original legal text. Not legal advice."}