As a Special Purpose District established specifically for, and singularly focused on water, we’ve been developing and updating a proactive Water System Plan since 1933.
All water systems in the State of Washington are required to complete a Comprehensive Water System Plan Update every 10 years. The purpose of this plan is to provide a comprehensive road map that encompasses:
- Planning and engineering efforts that describe and analyze system competency for the projected future demands on the water system;
- A detailed capital improvement plan that addresses system deficiencies through the 10-year and 20-year planning cycles; and
- A review of the existing water system, design criteria, system analysis and operations programs.
This effort helps us ensure that our water system, its associated operations, staff, and equipment, are being managed and maintained as safely, efficiently, and cost-effectively as possible.
Components of Our Water System Plan
1. Overview
Purpose; Policies; Rules and Regulations; Conservation; Customer Service; and long term water supply contract with Seattle Public Utilities (SPU).
2. Basic Planning Data
Historical data; Topography; Land Use and Zoning; Population and Employment; System Demand Projections.
3. Existing Water System
Water Supply; Emergency Water Supply; Facilities; Equipment; Water System; and Water Treatment.
4. Minimum Design Criteria for System Components
Jurisdictional Regulations; Planning Considerations; Reliability and Security; Water Supply and Pressure; Pipeline Velocities, Sizing, and Material: Valves; Fire Hydrants; Cross Connection Control; Water Storage; Pump Stations; Facility Placement; Plans and Specifications; and Water Quality Standards.
5. System Analysis
Source of Water; Water Storage; Pumping; Distribution; and Water Quality Monitoring.
6. Capital Improvement Planning
System Infrastructure; Facilities Life Cycle Analysis; Project Feasibilities; Project Planning; Project Financing.
7. Operations & Maintenance
Personnel; Processes; Records; Water Quality; Safety; Emergencies; Public Notification; Preventive Maintenance.
8. Financials
Water Supply; Cost of Service; Connection Charges; Funding; Capital Improvement Financing; Developer Policies; Standard Details and Specifications; and Multi-Year Rate Study.
View Our Current Water System Plan
Our most recent review and update began in early 2018 and was completed in 2019. Click on the image below to view our current Water System Plan document:
