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SUSTAINABLE SOLUTIONS AND COST-SAVING
APPLICATIONS FOR SMALL WATER SYSTEMS:
CASE STUDIES
2010 GWPC Water/Energy Sustainability Symposium
And Annual Forum
Pittsburgh, PA
September 26-29, 2010
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PRESENTERS
James J. Rhoades, Jr., PE
Michael J. Peleschak, PE
Project Manager/Water Group Manager
Project Engineer
• Registered PE: PA, DE
• Registered PE: PA
• 17 years of Experience
• 11 years of Experience
• Licensed Water & Wastewater
Treatment Plant Operator in PA
• Certified Sewage
Enforcement Officer
alfred benesch & company
www.benesch.com
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PRESENTATION OVERVIEW
Introduction
Background
Case Studies
- Innovative sustainable solutions for technical issues
- Ways to minimize life-cycle costs
- Sustainable O&M, reducing energy use and costs
Future
Questions
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WHY IS OUR CURRENT FOCUS
ON SUSTAINABILITY?
Investment Needs and Shortfalls
in Drinking Water:
•2002 EPA Gap Analysis: 20-year
funding gap from $45B to $263B.
Annual shortfall of $11 B.
•ASCE 5-Year: Needs $255B;
Estimated Spending $146.4B;
Projected Shortfall $108.6B.
•2007 EPA DW Infrastructure Needs
Survey & Assessment: Need
$334.8B over 20 years.
•2008 PA Sustainable Water Task
Force 2008 - $38.9B needed over
20 years
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WHY IS OUR CURRENT FOCUS
ON SUSTAINABILITY?
Client Needs Due To:
• Aging infrastructure
• New regulations with price tag to match
• New systems/Expansion of service – for more
revenue/economic development
• Ongoing O&M assistance – keep things running
• Increased annual O&M costs (electricity #1)
• Deferred maintenance due to limited financial resources
Water System Limitations:
• Technical – Need to meet current regulations
• Managerial – Many rural systems have volunteer operators
• Financial - Public water systems have limitations on rate
increases (affordability criteria, political influence, economic
condition impact)
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CASE STUDIES
Innovative Sustainable Solutions for
Technical Issues
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MADISONBURG WATER WORKS
MEMBRANE FILTRATION PLANT
• Pilot Study
• Innovative Technology
Permit from PADEP
• 90% of Backwash
Recycled
• Used Existing Foundation
Tank (3 Sections)
• Infiltration Bed in EV
Watershed
2010 ACEC/PA
Diamond Award
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MADISONBURG WATER WORKS
MEMBRANE FILTRATION PLANT
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NELSON TOWNSHIP AUTHORITY
CONVENTIONAL FILTRATION PLANT
• Riverbank Filtration
• Natural pre-filtration, reduce
energy needs
• SCADA
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NELSON TOWNSHIP AUTHORITY
CONVENTIONAL FILTRATION PLANT
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NELSON TOWNSHIP AUTHORITY
CONVENTIONAL FILTRATION PLANT
Raw
Max Settled
Max Filtered
Combined
Turbidity (NTU)
1000
Turbidity (NTU)
100
300
200
10
100
1
0
River
WTP
Final
Water Influent Effluent
0.1
0.01
Jan-07
Feb-07 Mar-07
Apr-07
May-07
Jun-07
Jul-07
Aug-07
Sep-07
Oct-07
Nov-07
Dec-07
Jan-08
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AUSTIN BOROUGH WATER
DIRECT FILTRATION PLANT
• SCADA
• Source Water
Collection (Springs)
• Marcellus Shale
drillers bulk-hauling
station
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CASE STUDIES
Sustainable Ways to Minimize Life-Cycle Costs
Capital Costs
• Solar Power for Remote Telemetry
• Innovative Construction Techniques
O&M Costs - Reduce Amount of Treated Water
• Leak Detection
• Water Conservation
• UAF Reduction
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MOREA CITIZENS WATER COMPANY
SOLAR POWERED SCADA SYSTEM
• Solar panels to power the new controls saved
over $20,000 in electrical system construction
costs.
• Wireless radio controllers eliminated the need
for telephone lines saving $15,000.
• MCWC no longer loses millions of gallons of
water per year.
• Electrical & treatment expenses
associated with long system run times
have declined by almost 50%.
• Average daily demand reduced from
70,000 gpd to 30,000 gpd.
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MAHANOY TOWNSHIP AUTHORITY
WATER DISTRIBUTION SYSTEM UPGRADES
Value Engineering/Asset Management Study
• Bentley WaterCAD Hydraulic Model
• 20-year Life Cycle Cost Analysis
Project Overview:
• 21,000 linear feet of new water mains
• 1,300 service connections
• 44 fire hydrants and associated appurtenances
Outcome:
• Improved water quality, pressures, and fire protection
• Eliminated dead ends, lines prone to freezing, and
shared services
• Reduced UAF from >50% to <25%
• Delinquent accounts from $80,000 to $11,000
• ADD Reduction of 200,000 GPD (650k to 450k)
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MIFFLIN TOWNSHIP WATER
AUTHORITY – REDUCE UAF
System Deficiency
• UAF over 70% (ADD 230,000 gpd)
• Under Consent Order from PA DEP
Corrective Action
•Developed CAP for PA DEP
•Leak Detection Program
•Service Line Replac’mt Program
•Initiated a Trans Main Project
–WaterCAD Modeling
–Dedicated Main from Well to
Storage Tank
–PRV Stations in Dist Sys –
ave pressures over 120 psi
–SCADA System
UAF Down to 52%
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CASE STUDIES
Sustainable O&M, Reducing Energy Use
Sustainable Planning
• Must think long-term in planning stages
• Total Quality Engineering (TQM™)
Replace Old Equipment/Controls
• Use of SCADA
• Use of VFDs
• Smart Meters
Modeling/Mapping/GIS
• Know what you have and where
• Model improvements before implementation
Implement Asset Management
• Long Term Plan to Replace/Rehab Assets
• Budgeting/Rate Structures
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SCADA (SUPERVISORY CONTROL
AND DATA ACQUISITION)
Why SCADA?
• Better Operations
• Emergencies/Alarms
• Data Collection/Management
• Regulatory Reporting
• Remote Observation/Control
• Real-time Leak Detection (ALC –
Active Leak Control)
• Identify Preventative Maintenance
• Tie to Mapping/GIS
• Asset Management System
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MODELING/MAPPING/GIS
Bentley WaterCAD
• WaterGEMS
• HAMMER
• SCADAConnect
Mapping/GIS
• GIS to Optimize O&M
• Asset Management
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FUTURE
Sustainable Design/Management
• Protects Public Health
• Protects the Environment
• Promotes Economic Development
• Promotes Innovation
• Promotes Effective Management
• Promotes Efficient O&M
• Triggers New Financing Strategies
Incentives
• Bottom Line – Lower Customer Rates
• More SRF Funding 2011
• PENNVEST – Green Project Reserve (ARRA)
• Grants – Fed (ARRA)/Sate (PA CFA) – Be Shovel Ready!
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THANK YOU/QUESTIONS??
James J. Rhoades, Jr., P.E.
[email protected]
570.622.4055
Michael J. Peleschak, P.E.
[email protected]
570.622.4055