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Code of Federal Regulations
C.F.R. Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER D—WATER PROGRAMS
PART 143—OTHER SAFE DRINKING WATER ACT REGULATIONS
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Subpart A—National Secondary Drinking Water Regulations
§143.1 Purpose.
§143.2 Definitions.
§143.3 Secondary maximum contaminant levels.
§143.4 Monitoring.
§143.5-143.9 [Reserved]
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