city of polson
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City of Polson. April 5, 2010 PUBLIC HEARING Water System Improvements PRESENTATION ON PRELIMINARY ENGINEERING REPORT. Project Scope. Prepare Preliminary Engineering Report (PER) Address Short and Long-Term Water System Problems - PowerPoint PPT PresentationTRANSCRIPT
City of PolsonApril 5, 2010April 5, 2010
PUBLIC HEARING PUBLIC HEARING
Water System ImprovementsWater System ImprovementsPRESENTATION ON PRELIMINARY PRESENTATION ON PRELIMINARY
ENGINEERING REPORT ENGINEERING REPORT
Project Scope Prepare Preliminary Engineering Report
(PER)Address Short and Long-Term Water System
Problems Incorporate Results from Hydraulic Modeling
Performed by Thomas, Dean and HoskinsDevelop Financial Plan Pursue Financial AssistanceKeep the Public Informed
What is a PER??Analysis of the Existing Water System Identification of System Deficiencies,
Current and Future Regulatory IssuesEvaluate Viable Solutions, Develop Costs Identify the Most Cost-effective OptionDevelop a Workable Financial PlanAssess Environmental Impacts Implementation Strategy
Preliminary Engineering ReportsKeys to Success
•Document Need!!•Comply with PER Outline•Reasonable Capital and O&M Costs•Address Existing and Future Regulations•Workable Financial Plan •Encourage Public Involvement
2010 Water System PER City of Polson Existing ProjectedExisting and Projected Water Use 2005 2006 2007 2008 2009 2010 2020 2030 ADD (Average Daily Demand in GPD) 765831 817957 760813 718456 749012 776440 1043560 1402380ADD (GPM) 531.8 568.0 528.3 498.9 520.1 539.2 724.7 973.9Estimated Population* 4,849 4,985 5,089 5,228 5,385 5,546 7,454 10,017GPCD (ADD/Population) 158 164 150 137 139 140 140 140Population/2.32 Household = EDU 2090 2149 2194 2253 2321 2391 3213 4318Est. Commercial/Inst. EDU's 497 512 527 543 559 576 774 1041Total EDUs 2587 2661 2721 2796 2880 2967 3987 5359Use/EDU (GPD) 296.0 307.4 279.7 256.9 260.1 261.7 261.7 261.7ADD with 10% Reserve Capacity (GPM) 593.1 797.2 1071.3 MDD (Max. Daily Demand) = ADD X 2.2 = GPD 1878985 2525415 3393760MDD (GPM) 1305 1754 2357PHD (Peak Hourly Demand)= 2.5 X MDD = GPM 3262 4384 5892Pump Capacity* (GPM) 2120 2120 2120 2120 2120 2120 2120 2120Pump Capacity w largest Pump out of Service 1600 1600 1600 1600 1600 1600 1600 1600 * Utilized 3% annual growth rate
Project Design Criteria
City of PolsonWater Demand and Supply 2010 2020 2030
ADD with 10% Reserve Capacity 593 797 1071MDD (GPM) 1305 1754 2357Current Pump Capacity (GPM) 2120 2120 2120Pump Capacity* (GPM) 1600 1600 1600
*w ith largest w ell out of service
Problem Evaluation and Resolution
Water SupplyStorage Distribution – Water Mains, Valves and
HydrantsDevelop Financial Plan
Water Supply Problems
Additional Water Needed to Meet Anticipated Peak DemandWater Needed on East Side of City during High Demand Unaccounted for Water
Leakage Unmetered Users
Complex Water Rights Issues Variable Aquifer Characteristics Limited Data on Peak Use and Aquifer ResponseGlobal Warming (Drought)
Activities to Address Water Supply Issues
Obtain New Sources of GroundwaterReplace All Malfunctioning Water Meters Install Meters on City FacilitiesRemain Involve in All Water Rights
Negotiations, Further Investigate Existing Rights
Expand Monitoring of Water Use including PWL, SWL and Peak Use
Potential New Well
Storage Tank NeedsTwo Tanks Under
ConstructionRenovate Interior Tank
Coating on Skyline IConnect Available Storage at
Skyline to West Parts of Town
Plan for Future Storage near Woodbine Tank
Identified DistributionSystem Problems
Low Pressures and Lack of Adequate Flow to Fight Fires in the Downtown Area
Skyline-Woodbine Connector via Skyline Drive Reconstruction
Hydraulic Restrictions (undersized mains) 4th Street East, etc
Looping of Water Mains- Irvine Flats, Kerr Dam Road.
Resolution of Distribution System Problems
Downtown Water Main ImprovementsInstall 10” Main in Skyline Drive
under Road Reconstruction ProjectEliminate Hydraulic RestrictionsWater Main LoopingOngoing CIP for Undersized Mains
Summary of High Priority NeedsSupply
Construct New Well on East Side Address UAW
Storage Rehabilitate Skyline I Metal Tank Connect Skyline Storage to West Side
Distribution Downtown Main Upsizing Skyline Drive Reconstruction Address Hydraulic Restrictions thru out
City
Cost SummaryNew Well - $231,945Storage Improvements - $189,610Distribution Improvements - $1,920,309
Total High Priority Needs
Total Construction Cost $ 1,658,330
Contingency $ 282,244
Engineering $ 331,666
Legal, Administration $ 69,623
TOTAL PROJECT COST $ 2,341,864
Financial Assistance Treasure State Endowment Program
up to $500,000 grant DNRC Renewable Resources Grant
up to $100,000 grant CDBG Grant
up to $500,000 Montana State Revolving Loan Fund
2.75% and 3.75% loans up to 30 year term
Current Economy May Limit Grant Opportunities
Other Funding Scenarios
Extend Loan TermSeek $500,000 CDBG grantDivide Project into Smaller ComponentsPursue STAG, WRDA, ARRA, RD or other
Grant Funding
Existing Rates for Water and Sewer Service
Current “Typical” Water Rate $25.09
Current “Typical” Sewer Rate $28.75
Combined Rate $53.84
Target Rate Used for Funding $ 41.92
Cost for Ratepayers
Assumptions- No Local Funds, Use SRF Loan Funds @ 3.75% for 20 Years
No Grant 50% Grant FundingDebt Amount $ 2,341,864 $ 1,170,932
Debt Reserve $ 180,750 $ 90,375 Total Loan $ 2,522,614 $ 1,261,307 # EDU’s 2967 2967Debt Cost $ 5.10 $ 2.55 Coverage (25%) $ 1.28 $ 0.64
Cost per User $ 6.38 $ 3.19
Potential Project ScheduleComplete PER this SpringDevelop CIPGrant Applications due April-May of 2010Grant Funds Available in Summer 2011City is in Process of Drilling Test Well
QUESTIONS?
Contacts:
Scott Anderson @ 449-3303
or Tony Porrazzo @ 883-8215
THANK YOU!!