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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 141—NATIONAL PRIMARY DRINKING WATER REGULATIONS
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Subpart E—Special Regulations, Including Monitoring
§141.40 Monitoring requirements for unregulated contaminants.
§141.41 Special monitoring for sodium.
§141.42 Special monitoring for corrosivity characteristics.
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