Rivanna Water & Sewer Rivanna Water & Sewer Authority Community Water Authority Community Water

Supply Plan UpdateSupply Plan Update

Public MeetingPublic MeetingMonticello High SchoolMonticello High SchoolSeptember 21, 2004September 21, 2004

7:00 pm7:00 pm

Presentation AgendaPresentation Agenda

2002 Community Water Supply 2002 Community Water Supply StrategyStrategy

Need to Update StrategyNeed to Update Strategy Goal for UpdateGoal for Update Review of “Short List” OptionReview of “Short List” Option Project ScheduleProject Schedule

2002 CWS Strategy and 2002 CWS Strategy and Need to UpdateNeed to Update

Basic Components of February Basic Components of February 2002 Community Water Supply 2002 Community Water Supply

StrategyStrategy

Capital ImprovementsCapital Improvements Water ConservationWater Conservation Watershed ProtectionWatershed Protection Environmental ProtectionEnvironmental Protection

2002 Strategy – Capital 2002 Strategy – Capital ImprovementsImprovements

SFRR Four-Foot SFRR Four-Foot CrestCrest

SFRR DredgingSFRR Dredging Restore Mechums Restore Mechums

River PS and River PS and Increase Supply in Increase Supply in Ragged MountainRagged Mountain

•James RiverJames River•Beaver Creek Beaver Creek ReservoirReservoir•Other CapitalOther Capital OptionsOptions

30-Year 50-Year

The Need to UpdateThe Need to Update

New “Drought of Record” in 2002New “Drought of Record” in 2002 Improved Modeling InformationImproved Modeling Information

• Lower Yield for Four Foot CrestLower Yield for Four Foot Crest• Uncertain Costs and Yield for DredgingUncertain Costs and Yield for Dredging

DECISION: Update the Capital Improvement Options in the Community Water Supply Plan

Based on 50-Year Horizon

Update - So FarUpdate - So Far Existing Water Existing Water

Supply Adequate Supply Adequate Until 2008Until 2008

Use of Beaver Use of Beaver Creek in Drought Creek in Drought Can Extend Can Extend Adequacy to 2018Adequacy to 2018

Safe Yield Deficit Safe Yield Deficit in 2055 – 9.9 MGDin 2055 – 9.9 MGD

Figure 2-3Projected Daily Demand vs. Safe Yield Scenarios

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1990 2000 2010 2020 2030 2040 2050 2060

Year

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Safe Yield - Current Configuration

Average Daily Demand (Approx.)

Safe Yield with Beaver Creek Reservoir Release

Update – So FarUpdate – So Far

The “Short List”The “Short List”•James River James River •Ragged Mountain ExpansionRagged Mountain Expansion•SFRR Four-Foot CrestSFRR Four-Foot Crest•SFRR DredgingSFRR Dredging•Beaver Creek ReservoirBeaver Creek Reservoir

The GoalThe Goal

The GoalThe Goal

Obtain a Federal Permit That ...Obtain a Federal Permit That ...

–– Will Achieve 9.9 MGD of Added Will Achieve 9.9 MGD of Added Capacity Over 50 YearsCapacity Over 50 Years

–– Acceptable to State and Federal Acceptable to State and Federal RegulatorsRegulators

–– Acceptance to Local Community Acceptance to Local Community

–– Issues are Complex and Cross Issues are Complex and Cross thethe

Jurisdiction of Multiple Agencies Jurisdiction of Multiple Agencies

Federal and State RequirementsFederal and State Requirements

Water QualityWater Quality Wetland ImpactsWetland Impacts Stream ImpactsStream Impacts Stream Flows for Expanded ReservoirsStream Flows for Expanded Reservoirs Threatened and Endangered SpeciesThreatened and Endangered Species Cultural ResourcesCultural Resources Recreational ResourcesRecreational Resources Highway and Bridge IssuesHighway and Bridge Issues

To identify the least environmentally damaging, practicable alternative taking into account: overall

project purposes, feasibility, logistics, and cost.

Specific Issues That Must Be Addressed:Specific Issues That Must Be Addressed:

Federal and State AgenciesFederal and State Agencies U.S. Army Corp of Engineers Norfolk DistrictU.S. Army Corp of Engineers Norfolk District U.S. Environmental Protection Agency Region IIIU.S. Environmental Protection Agency Region III U.S. Fish and Wildlife ServiceU.S. Fish and Wildlife Service Virginia Department of Environmental QualityVirginia Department of Environmental Quality Virginia Department of HealthVirginia Department of Health Virginia Department of Game and Inland FisheriesVirginia Department of Game and Inland Fisheries Virginia Department of Conservation and RecreationVirginia Department of Conservation and Recreation

Division of Planning and RecreationDivision of Planning and Recreation Virginia Marine Resources CommissionVirginia Marine Resources Commission Virginia Department of Historic Resources Division of Virginia Department of Historic Resources Division of

Resource Services and ReviewResource Services and Review Virginia Department of Conservation and RecreationVirginia Department of Conservation and Recreation

Division of Natural HeritageDivision of Natural Heritage

Local AgenciesLocal Agencies

Rivanna Water and Sewer Authority Rivanna Water and Sewer Authority Albemarle CountyAlbemarle County Albemarle County Service AuthorityAlbemarle County Service Authority City of CharlottesvilleCity of Charlottesville

The “Short List”The “Short List”

James River OptionJames River Option

Can Provide All 9.9 MGD RequiredCan Provide All 9.9 MGD Required Could be Regional Project or RWSA Could be Regional Project or RWSA

ProjectProject New Water Supply and Treatment PlantNew Water Supply and Treatment Plant Eventually Abandon Observatory WTP Eventually Abandon Observatory WTP

and Transfer from Sugar Hollow to and Transfer from Sugar Hollow to Ragged MountainRagged Mountain

High Cost Among Options; Limited High Cost Among Options; Limited Project Phasing CapabilityProject Phasing Capability

Ragged Mountain ExpansionRagged Mountain Expansion

Can Provide All 9.9 MGD RequiredCan Provide All 9.9 MGD Required Combines Dam Rehabilitation and Combines Dam Rehabilitation and

ExpansionExpansion May Include Mechums Pump Station May Include Mechums Pump Station

Restoration; Requires Pipe Replacement Restoration; Requires Pipe Replacement from Sugar Hollowfrom Sugar Hollow

Requires VDOT Approval at I-64Requires VDOT Approval at I-64

Lower End of Costs Among Options; Phasing Lower End of Costs Among Options; Phasing CapabilityCapability

SFRR ExpansionSFRR Expansion

Can Provide Only 2.9 MGD; Must Be Can Provide Only 2.9 MGD; Must Be Combined with Other OptionsCombined with Other Options

Four Foot Crest (Raise Dam by Four Feet)Four Foot Crest (Raise Dam by Four Feet) May Require Bridge ReplacementsMay Require Bridge Replacements Moderate Costs When Combined with Moderate Costs When Combined with

Other Options; Phasing CapabilityOther Options; Phasing Capability Measured Wetland and Stream Impacts Measured Wetland and Stream Impacts

Will Be Critical to FeasibilityWill Be Critical to Feasibility

SFRR DredgingSFRR Dredging

Can Provide Maximum of Approx. Can Provide Maximum of Approx. 5 MGD; Must Be Combined with Other Options 5 MGD; Must Be Combined with Other Options

Volume of Dredged Spoil is Significant; Will Volume of Dredged Spoil is Significant; Will Require Large Disposal Site; Environmental Require Large Disposal Site; Environmental Impacts Will Depend on SiteImpacts Will Depend on Site

Quality of Spoil Material Not Yet ConfirmedQuality of Spoil Material Not Yet Confirmed Costs Not Yet QuantifiedCosts Not Yet Quantified Long-Term Maintenance Required and Long-Term Maintenance Required and

Sustainability UncertainSustainability Uncertain

Beaver Creek ReservoirBeaver Creek Reservoir

Crozet System Currently Uses 0.3 MGD; Crozet System Currently Uses 0.3 MGD; Master Plan Build-Out = Estimated 1.1 Master Plan Build-Out = Estimated 1.1 MGD Use in FutureMGD Use in Future

Up to 2.6 MGD Available for Urban System; Up to 2.6 MGD Available for Urban System; Must Be Combined With Other OptionsMust Be Combined With Other Options

Existing Reservoir; Low Cost to ImplementExisting Reservoir; Low Cost to Implement Lowers Costs when Combine with Other Lowers Costs when Combine with Other

OptionsOptions May Be Used as an Interim SolutionMay Be Used as an Interim Solution

Project ScheduleProject Schedule

Project ScheduleProject Schedule

January 2004 – Update Safe Yield January 2004 – Update Safe Yield AnalysisAnalysis

May 2004 – Identify Alternatives to May 2004 – Identify Alternatives to Meet Future Safe YieldMeet Future Safe Yield

July 2004 – Narrow alternatives to July 2004 – Narrow alternatives to “Short List” using federal requirements“Short List” using federal requirements

August 2004 – Initiate evaluation of August 2004 – Initiate evaluation of “Short List” and discussions with “Short List” and discussions with regulatorsregulators

Project ScheduleProject Schedule

September 2004 – Public MeetingSeptember 2004 – Public Meeting October/November 2004 – Additional October/November 2004 – Additional

Public DiscussionsPublic Discussions Winter 2005* - Propose Selected Winter 2005* - Propose Selected

Alternative to RWSA Board of Alternative to RWSA Board of DirectorsDirectors

Winter 2005* - Public Meeting on Winter 2005* - Public Meeting on Proposed Selected AlternativeProposed Selected Alternative

**Schedule Subject to Change Depending on Schedule Subject to Change Depending on Negotiations with Federal and State RegulatorsNegotiations with Federal and State Regulators

Project ScheduleProject Schedule

Spring 2005* - Local Board Approvals Spring 2005* - Local Board Approvals of Selected Alternative of Selected Alternative

Spring 2005* – Make Application for Spring 2005* – Make Application for Federal Permit for Selected Federal Permit for Selected AlternativeAlternative

**Schedule Subject to Change Depending onSchedule Subject to Change Depending on

Negotiations with Federal and State RegulatorsNegotiations with Federal and State Regulators