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title 40
Protection of Environment
chapter I-i24
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
part 141
PART 141—NATIONAL PRIMARY DRINKING WATER REGULATIONS
subpart E
Subpart E—Special Regulations, Including Monitoring
Subpart E. 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.
