Washington Administrative Code
Title 246 - Health, Department of
WATER SYSTEMS
Chapter 246-290 - Group A public water supplies
Part 6 - SURFACE WATER TREATMENT
Subpart C - Requirements for Systems Installing Filtration Facilities
- Section 246-290-670 - Compliance requirements for existing unfiltered systems installing filtration
- Section 246-290-672 - Interim treatment requirements
- Section 246-290-674 - Interim monitoring and reporting
- Section 246-290-676 - Filtration technology and design criteria
- Section 246-290-678 - Reliability for filtered systems
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