Tigard_WSP_0410 Components of a Water System Master Plan 1. Chapter 1 – Existing System 2. Chapter 2 – Demand Projections 3. Chapter 3 – Hydraulic Model 4. Chapter 4 – System Analysis 5. Chapter 5 – Integration of JWS with Lake Oswego 6. Chapter 6 – Recommended Project List for CIP and CMP Planning period is for 20 years. Recommend updating every five years.
Tigard_WSP_0410 Chapter 1 – Existing System Pipes - Type, Size, Location and Age Pumps - Capacity, Location, Backup Power and Age Wells/ASR – Capacity, Location Reservoirs – Capacity, Location and Age The service area is well-served by existing infrastructure with very few improvements needed
Tigard_WSP_0410 Water demands within the service area are projected to increase by nearly 50% by 2030 Chapter 2 – Demand Projections
Tigard_WSP_0410 Chapter 3 – Hydraulic Model The time and effort the City put into developing GIS and the new hydraulic model will provide continuing benefits, including optimizing JWS infrastructure
Tigard_WSP_0410 Almost all of the distribution system has sufficient flows to fight fires Chapter 4 – System Analysis (Fire Flows)
Tigard_WSP_0410 Additional supplies are needed to meet short term peak day supply shortages through 2016 Chapter 4 – System Analysis
Tigard_WSP_0410 The completion of ASR 3 will help the system to meet short term peak day supply shortages through 2016 Chapter 4 – System Analysis
Tigard_WSP_0410 With ASR Well 3, the JWS will meet the City’s needs through 2030 and beyond Chapter 4 – System Analysis
Tigard_WSP_0410 The JWS will change the location at which supply enters the service area Chapter 5 – Integration of JWS with Lake Oswego
Tigard_WSP_0410 Chapter 5 – Integration of JWS with Lake Oswego JWS requires a new booster pump station to deliver water to Reservoir 10 Joint Water Supply (Bonita Rd PS) Existing Portland Supply
Tigard_WSP_0410 Recommended Capital Improvement Projects ProjectCost (1) YearReason W1 - ASR Well 3 Design & Equip $2,200, Short Term and Long Term Water Supply W2 - ASR Well 4 Siting, Drill, Equip $3,004, Long Term Water Supply PS1 - Replace Pump Station 5 Included in the JWS budget Deliver Lake Oswego Supply into Tigard Water System PS2 - New Booster Pump Station $1,749, Deliver Water from 410 pressure zone to 10 MG Reservoir (Bull Mountain PRV1 - New PRV from 550G to 410 Zone $105, Delivers ASR 3 Water to 410 pressure zone P1 - Pipeline from 550G to 530 Zone $1,967, Fire flow deficiencies on Canterbury Hill P2 - Annual Fire Flow Improvements $100,000/year Distribution Fire flow deficiencies P3 - Pipeline connecting PRV1 $17, Delivers ASR 3 Water to 410 pressure zone S1 - Water Master Plan Update $140, Integration of JWS Very few capital projects are required due to the good condition of the existing water system
Tigard_WSP_0410 Recommended Capital Maintenance Projects ProjectCost (1) YearReason MM1-Asset Management Program$100, Define the Existing Infrastructure RM1-Reservoir Seismic & Condition Assessment $100, Assess the Seismic Integrity of Older Reservoirs PSM1-Replacement/Upgrade of PS 8 $2,110, Replace an Aging Pump Station PM1- General Pipeline Replacement$70,000/year Replace Aging Pipes OM1-Meter Replacement$125,000/year Replace Aging Meters OM2-Hydrant Replacement$120,000/year Replace Aging Hydrants Planned CMP projects will maintain the high level of service provided to current customers
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