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Safe Drinking Water Act

Drinking Water Quality

The Safe Drinking Water Act (SDWA) regulates the quality of drinking water delivered by cities, towns and municipalities. It also regulates community water systems including housing complexes, schools and transient water systems serving more than 25 people. The SDWA requires the use of analytical methods which have very prescriptive quality control requirements. Alpha Analytical performs the following methods on-site in support of these regulations:

  • Volatile Organics by EPA Method 524.2
  • Trihalomethanes by EPA Method 524.2
  • EDB & DBCP by EPA Method 504.1
  • Haloacetic Acids by SM6251B
  • Inorganic Contaminants (IOCs)
  • Trace Metals by EPA Methods 200.7, 200.8 and 245.1
  • Secondary Contaminants
  • Total Coliform
  • Water Quality Indicator Parameters


For further information on the Safe Drinking Water Act, these links are provided as regulatory resources:


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