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Group B Approval Process

New or expanding Group B Public Water Systems are required to get approval prior to construction.  The approval for the system is done either by the Cowlitz County Health Department or the Washington State Department of Health.   

  • Cowlitz County Health Department reviews systems with 9 or less connections consisting of a drilled well that:
    • Do not use a variable speed pump;
    • Do not provide fire flow;
    • Do not have special hydraulic considerations;
    • Do not have atmospheric storage in which the bottom elevation of the storage reservoir is below the ground surface;
    • Serve fewer than ten service connections
  • The Washington State Department of Health reviews any system that does not meet the above requirements.  A professional engineer is required to submit any design submittals for these types of systems.

Approval Documents

Group B Approval Process

Group B Water System Design Guidelines

Group B Design Submittal Workbook

WAC 246-291: Group B Public Water Systems

Cowlitz County Group B Ordinance

Cowlitz County Satellite Management Agencies

Covenants for Group B Public Water Supply Protection

Template for Declaration of Covenant and Restrictive Covenants

Example Informational Notice for Property Titles

Complete IOC Test for Group B Systems

Washington State Certified Drinking Water Labs

How To Hire An Engineer

List of Engineers (Previously Submitted Plans to DOH)

Plan Review Receipt

Well Site Inspection Application

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