Tigard-Portland Metropolitian Area Regional Water Supply Overview Tigard-Portland Area CITY OF'GARD
Regional Water Supply Overview
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A Presentation for the Visiting
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September 15, 2003
International City Managers Association
Resource City Program
City of Tigard Representatives:
• Bill Monahan, City Manager
• Liz Newton, Assistant to the City Manager
• Ed Wegner, Public Works Director
• Dennis Koellermeier, Assistant Public Works Director
Murray,Smith&Associates,Inc. Murray, Smith & Associates. Inc. Representatives:
_i _ _: En eers/Planners
— ve = _: • Phil Smith, P.E., President
j = v- • David Leibbrandt, P.E., Senior Vice President
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- _ _J=9 121 A.Salmon,Suite 900 PHONE 503.225.9010 • Chris Uber, P.E., Vice President
Portland,Oregon 97204-2920 EV 503.225.9022 • Joseph Richards, P.E., Project Engineer
Introduction
• Murray, Smith & Associates, Inc.
— Private U .S. Company, Incorporated in State of Oregon
— Founded 1980 in Portland, Oregon
— Municipal Engineering Specialists in Water Resources
— Current Staff Size, 45
— Tigard's Water System Consultant and Engineer of Record
• City of Tigard , Oregon (2003)
— Population, 51 000
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Average Day Water Demand, 6.2 mg
— Peak Day Water Demand, 15.7 mgd
• Portland Metropolitan Region ( Including Tigaiay‘
— Population, 1 .4 Million
— Average Day Water Demand = 150 mgd
— Peak Day Water Demand = 350 mgd
* (mgd = million gallons per day. . .1 mgd = 43.8 L/S)
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Public Water Systems Uses
• Drinking Water
• Fire Suppression
• Industry & Commerce
• Irrigation
• Other Domestic Uses
Where Does the Portland Metropolitan Area
Get It's Water From?
• Bull Run Watershed/Columbia South Shore Wellfield (Unfiltered)
• Clackamas River (Filtered)
• Trask & Tualatin Rivers (Filtered)
• Local Groundwater Sources ~ow
• Willamette River (Filtered)
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Plir City of Portland
Water Supply System
PERSPECTIVE OVERVIEW
MT.HOOD
y September 2003 MSA
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a OUNTAIN RANGE
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' 1 •.-, '- SUPPLY LINE '_ _
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CONDUITS ."
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ROCKWOOD , Clackamas River r —
PEOPLES UTILITY i o
Columbia South DISTRICT GRESHAM Powell Butte SUNRISE WATER
Shore Well Feld _—_------°- Reservoir AUTHORITY
1-205 Mt Tabor Storage--...,„
3 PVRWD CRW
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Washington Park--/ TUALATIN
Willamette River WSWD$ •HWay 217 TIGARD
Storage and
ABBREVIATIONS TVWD BEAVERTON
CRW CLACKAMAS RIVER WATER Pumping Facilities
PVRWD POWELL VALLEY ROAD WATER DIS11ifCT
RWD RALEIGH WATER DISTRICT •
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TVWD TUALATIN VALLEY WATER DISTRICT -•
WSWD WEST SLOPE WATER DISTRICT UNE !MI'
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DOMING PPING �1U.SBQRa JOINT
PROPOSED RAW WATER PIPELINE ._ WATER
COMMISSION
UIMTER Figure 1
AIP
Raw Water Pipeline
Existing JWC Water Supply System
• &Proposed Raw Water Pipeline
Conceptual Overview
TRASK RIVER
MSA
JWC DIVERSION • MS Cli2MHILL
BARNEY am" lil.LLL_
ESERVOIR —� -
CITY OF HILLSBORO -
HAINES FALLS PRELIMINARY
INTAKE REVISED JULY 1, 2003
I (O.F.ELEV.5591
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PROSPECTIVE FUTURE
LEE FALLS 0"-----..„0"-----..„ i TRANSFER TUNNEL FOREST GRO
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WATERSHED ,
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HENRY
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LLSBORO • INS VALLEYDILLEY 0.9MG
METER ST�', J / FOREST GROVE WTP&
`S LYVNE SCOL / RESERVOIR �—_-- i 5 MG RESERVIOR
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FERNJW0HILL RESERVOIR/ �� +CFSt S 18-INCH DIA SUPPLY LINE
(O.F.ELEV.520') TO BE ABANDONED
ABBREVIATIONS JWC zF .._ �k
JWC HILLSBORO/FOREST GROVEJBEAVERTON/ WATER TREATMENT o S %
TUALATIN VALLEY WATER DISTRICT PLANT(WTP) -_ - -
JOINT WATER COMMISSION
MG MIWON GALLON
0 F.ELEV. OVERFLOW ELEVATION
PRV PRESSURE REDUCING VALVE
TVID TUALATIN VALLEY IRRIGATION DISTRICT
TVWD TUALATIN VALLEY WATER DISTRICT
WTP WATER TREATMENT PLANT
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"' K� - Willamette River Basin
Columbia River
-.` Joint Water Portland .. 0 ' PERSPECTIVE OVERVIEW
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Tigard - Portland Metropolitan Area
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µ ' LOCAL GROUNDWATER
'"` SUPPLIERS
. September 2003 MSA 1
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Improvements On The Horizon
• Bull Run Watershed System -- Treatment Plant, Dam No. 3,
Reservoir Covering, Groundwater Development, Conduit 5,
Distribution System Improvements
• Clackamas River -- Systems Expansion Within Senior Water
Rights
• Joint Water Commission -- Scoggins Dam Raise, Tualatin
River/Bain Creek Tunnel, Raw Water Pipe ' Now Fern Hill
amilet
Reservoir, Treatment Plant Expansio
• Willamette Supply System -- Potential Expansion
• Local Groundwater ( Including Aquifer Storage and Recovery,
ASR)
Planning Considerations
• Supply/Demand Interests
— Population Growth
— Land Use and Zoning Regulations
— Development Trends and Patterns
— Water Use Trends
• Water Quality Interests
— Current Regulations
— Future Regulations
— Public Perception
• Public/Agency/RegulatoryExpectation -- Contuous
,
Economical , Non-Interrupted , Reliable Supply of Adequate
Quantities of Safe, High Quality Drinking Water From All
Public Water Systems
Typical Water System Information
• Average Water Use -- 110 gallons per capita per day
• Peak Day Water Use -- 250 gallons per capita per day
• Distribution System Storage -- 2-3 times average day demand
• Fire Flow Capacity -- 1000 - 4,500 gallons per minute
• Typical Distribution System Pressure, 40-100 psi
• Minimum Distribution System Pressure, 20 psi
• Water Quality Compliance (Current and Future) -- State and
Federal Regulations: Turbidity, Disinfection/Disinfection By-
Products, Coliform , Giardia, ViruseCryptosporidium , Lead
and Copper, Arsenic, Synthetic Compoun , r `anic and
Inorganic Compounds, Etc.
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Typical Improvement Decision Drivers
• Water Demand
• Funding Availability
• Public Perceptions
• Politics
• Drought
• Emergencies/Disasters
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Questions & Answers
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