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Home Page > Executive Branch > Code of Federal Regulations > Electronic Code of Federal Regulations

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e-CFR Data is current as of November 18, 2009

TITLE 40--Protection of Environment

CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY

SUBCHAPTER D--WATER PROGRAMS

PART 143--NATIONAL SECONDARY DRINKING WATER REGULATIONS

rule
§143.1
Purpose.
§143.2
Definitions.
§143.3
Secondary maximum contaminant levels.
§143.4
Monitoring.
rule

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