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Drinking Water Requirements for States and Public Water Systems
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State Resources for Implementing Drinking Water Rules

Water Supply Guidance (WSG)

The WSG is a compilation of policy decisions pertaining to implementation issues under the Safe Drinking Water Act.

  • Public Water System Supervision Program WSG Manual

Drinking Water State Revolving Fund

The Drinking Water State Revolving Fund (DWSRF) program is a federal-state partnership to help ensure safe drinking water. Drinking water state revolving fund program guidance provides information to states.

Guidance documents by regulation:

Chemical contaminants

  • Arsenic rule
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Microbial contaminants

  • Ground water rule
  • Stage 1 and stage 2 disinfectants/disinfection byproducts rules
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  • Total coliform rule/ revised total coliform rule

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Last updated on December 20, 2021