Appendices

 (PDF)
Appendix A Adopting Resolution and Ordinance
Appendix B

Agency/Adjacent Purveyor Comments and Approval Part 1

Agency/Adjacent Purveyor Comments and Approval Part 2

ppendix C SEPA Checklist and Determination of Non-Significance
Appendix D

Water Supply Contracts and Agreements Part 1

Water Supply Contracts and Agreements Part 2 

Appendix E

Interlocal Agreements Part 1

Interlocal Agreements Part 2 

Interlocal Agreements Part 3

Interlocal Agreements Part 4

Appendix F

Demand Projections Part 1

Demand Projections Part 2

Demand Projections Part 3

Appendix G Cross Connection Control Program
Appendix H Water Facilities Inventory Form
Appendix I Water Quality
  • 2017 WWD Annual Drinking Water Report
  • Emergency Response Plan
  • Stage I DBP Monitoring Plan
  • Stage II DBP Monitoring Plan
  • IDSE
  • WWD Coliform Monitoring Plan
  • Sample Stand Location Map
Appendix J Model Update and Calibration
Appendix K Capital Improvement Plan
Appendix L Financial Analysis
Appendix M Water Rights Self-Assessment
Appendix N King County Water Reclamation Evaluation Checklist
Appendix O Water Construction Specifications and Standard Design Details

 

Figures

 (PDF <2,000 KB)
Figure ES.1 District RWSA and City Boundaries

Figure ES.2

District Service Area, RWSA and Adjacent Water Utilities

Figure ES.3

Existing Land Use

Figure ES.4

Future Land Use

Figure ES.5

2015 Water Purchase By Tap

Figure ES.6

Water Consumption versus Precipitation (2009-2015)

Figure ES.7

Historical Average Day and Maximum Day Water Purchase

Figure ES.8

Urban Vs. Rural Pressure Zones

Figure ES.9

Map of Existing Customers and Consumers

Figure ES.10

Account Projections by Customer Type

Figure ES.11

Projected ADD and MDD

Figure ES.12

Water System Facilities and Pressure Zones

Figure ES.13

Hydraulic Profile West

Figure ES.14

Hydraulic Profile Central

Figure ES.15

Hydraulic Profile East

Figure ES.16

Water Main Replacement Schedule Chart Based on Age

Figure ES.17

Water Main Replacement Schedule Map Based on Age

Figure ES.18

Storage Components

Figure ES.19

Fire Flow Requirements

Figure ES.20

High Pressure Nodes during 2023 ADD without improvements

Figure ES.21

Low Pressure Nodes during 2037 PHD without Improvements

Figure ES.22

Area below Minimum Required Residual Pressure (Less than 20 PSI) During MDD and Fire Flow

Figure ES.23

Fire Flow Dead-end Pipes in Non-Single Family Areas

Figure ES.24

Recommended Distribution System Improvements

Figure ES.25

Organizational Hierarchy

Figure ES.26

CIP Projects

Figure ES.27

Financial Forecast

Figure 1.1

District Vicinity Map

Figure 1.2

District RWSA and City Boundaries

Figure 1.3

District Corporate Boundary, RWSA, and Adjacent Utilities

Figure 2.1

RWSA Physical Features

Figure 2.2 Water Consumption versus Precipitation (2009-2015)
Figure 2.3 Existing Land Use
Figure 2.4 Future Land Use
Figure 2.5 2015 Water Purchase by Tap
Figure 2.6 Historical Average Day and Maximum Day Water Purchase
Figure 2.7 Map of Existing Customers and Consumers
Figure 2.8 Historical Accounts by Customer Type
Figure 2.9 Historical Consumption by Customer Type
Figure 2.10 Urban vs. Rural Pressure Zones
Figure 2.11 Account Projections by Customer Type
Figure 2.12 Demand Projection Methodology
Figure 2.13 Projected ADD and MDD
Figure 3.1 Water System Facilities and Pressure Zones
Figure 3.2 Hydraulic Profile – West
Figure 3.3 Hydraulic Profile – Central
Figure 3.4 Hydraulic Profile – East
Figure 3.5 Water Main Material
Figure 3.6 Water Main Installation Decade
Figure 3.7 Water Main Replacement Schedule Chart Based on Age
Figure 3.8 Water Main Replacement Schedule Map Based on Age
Figure 4.1 Storage Components
Figure 5.1 Service Areas
Figure 5.2 Service Areas Hydraulic Profile - West
Figure 5.3 Service Areas Hydraulic Profile - Central
Figure 5.4 Service Areas Hydraulic Profile - East
Figure 5.5 Fire Flow Requirements
Figure 5.6 High Pressure Nodes during 2023 ADD without Improvements
Figure 5.7 Low Pressure Nodes during 2037 PHD without Improvements
Figure 5.8 Areas Below Minimum Required Residual Pressure (< 20 psi) during MDD and Fire Flow
Figure 5.9 Recommended Distribution System Improvements
Figure 5.10 Fire Flow Dead-end pipes in Non-Single Family Areas
Figure 7.1 Organizational Hierarchy
Figure 8.1 AC Main Vulnerability
Figure 8.2 AC Main Criticality
Figure 8.3 AC Main Risk
Figure 8.4 CIP Project
Figure 9.1 Financial Forecast