1. WATER SYSTEM WORKSHOP February 27, 2012
WATER METER REPLACEMENT PROGRAM
EAST AVENUE PUMPING STATION IMPROVEMENTS
February 27, 2012

2. WATER METER REPLACEMENT PROGRAM
Background
Project Approach / Reasoning
Bid Analysis
Recommendations
Project Schedule

3. Past Meter Programs 1987 Meter Replacement Program
First meters installed 50 – 60 years ago
Mechanical registers moved to outside of houses
1987 Meter Replacement Program
Positive Displacement Meters
Touch Read System
Approximately 4 years to complete
Work was by done by Public Works staff.

5. Water Accountability Water Recorded At East Avenue Pump Station
Water Recorded At Customer Meters
Unaccounted For Water / Non-Revenue Water
~ 2011 – Non-Revenue Water = 149 million gallons

6. Takes into account age of mains and other information
No additional mandates to date
IDNR – continue to make efforts

7. Different standard than the IDNR, does not estimate losses for water main breaks, gross amount
Auditors have made comments over the last five years
Their standard / goal is 80%

8. Major Sources Of Non-Revenue Water
Real Losses
Water main breaks
Leaky joints in water mains
Annual hydrant flushing
Apparent Losses
Inaccurate metering at the Pump Station
Inaccurate metering at customer meters

9. Determining, Quantifying, and Fixing Major Sources of Unaccounted For Water
Water main breaks – Repair immediately, annual leak surveys
Leaky joints in water mains – Water Main Replacement Program, Difficult to determine, Expensive
Inaccurate metering at the Pump Station – Testing, Replacement
Annual hydrant flushing – Accurate Recordings
Inaccurate metering at customer meters – Testing, Replacement

10. Water Meter Accuracy Why do meters lose accuracy over time?
Mechanical meters ~ parts wear out
Water “slips” by
Most evident in low flows
How to estimate?
Remove and physically test meter
Develop in field testing systems
Industry standards for meter life and estimating

11. Meter Removal and Testing
Randomly tested 25 meters
Meter manufacture year
Measured at different flow rates
Results ….
14 of the 25 meters (56%) did not meet AWWA accuracy standards
Test does not provide total amount of water

12. SUGGESTED ACCURACY TEST FLOW RATES FOR COLD WATER METERS
DISPLACEMENT METERS (AWWA C700)
Maximum Rate
Intermediate Rate
Minimum Rate
Minimum
(All Meters)
(New and Rebuilt)
(Repaired)
Size In.
Flow Rate gpm
Accuracy Limits Percent
Accuracy Limits Percent (min.)
5/8 15 2
1/4
95-101 90
5/8 x 3/4
3/4 25 3
1/2 1 40 4
1 1/2 50 8
100

13. Field Meter Testing New and Old Displacement Meters Tested
Results – Magnetic Meter recorded on average 3% more water

14. Industry Standards For Meter Replacement
American Water Works Association recommends replacement of water meters every 15 – 20 years
Dependent on water quality
Benchmark

15. Recommendation to Replace Meters
Village water meters – 22 to 25 years old
Testing Results
56% of meters tested did not meet AWWA standards for accuracy
Below IDNR’s target of 92% for unaccounted for water
Below auditor’s target of 80% for unaccounted for water
Equitable distribution of water fund costs
Replace meters now will reduce future water losses

16. Water Meter Replacement Program Project Goals
Improve water accountability.
Reduce water meter reading expenses through technology.
Improve customer service.
Reduce environmental impacts
Water loss / Conservation
Energy consumption for pumping water
Energy consumption for meter reading
New federal lead requirements
Provide a long-term solution
Obtain pricing information to accurately state project costs

17. Water Meter Replacement Program Specifications
Objectives
Based on Automatic Meter Reading / Automated Metering Infrastructure
Improved accuracy, reliability, and customer service
Cost effective meter reading
Flexibility for future
“Turnkey” Project
Centralized management and coordination
Economies of scale
Staff workload management
Meter installation - Non-working hours

18. Request for Bids
Bids requested based on Project Goals and Objectives in order to receive actual pricing information
Bids received from HD Supply Waterworks, Inc. and Mueller Systems
HD Supply Waterworks was determined to be the lowest, responsible bidder
Bid amount - $1,373,200
Bid is based on FlexNet system and iPerl meter manufactured by Sensus, Inc.

19. Sensus FlexNet System Two-way communication
FCC licensing – 57 repeators

20. Sensus FlexNet Propagation Analysis
1. One antenna can cover the entire Village

21. Sensus iPerl Meter Magnetic Meter Reading Technology
Low flows – 0.03 gallons per minute
~ Leaking toilet
No moving parts
Alarms – Empty pipe condition, cut wire, leak detection

22. Sensus iPerl Meter

23. Total Estimated Project Cost with HD Supply Waterworks
Item
Cost
Base Bid- Includes all costs for supply and installation of meters (1” and smaller), meter interface units, and fixed base system components
$1,373,200
Electrical Ground Straps
$4,500
Large Meter Installations
$48,768
Private Service Valve Repair / Installation (Reimbursable)
$17,750
Total
$1,444,218

24. Schedule Anticipated schedule
Install Fixed Base Equipment and Test – 3 months
Install all water meters – 4,600 – 1 year

25. East Avenue Pumping Station Improvements

26. East Avenue Pumping Station Improvements
Background
Summary of Report Findings
Recommendations

27. Background 1983-84 - East Avenue Pump Station constructed
Pump station consists of
Incoming water feed from McCook
Five pumps - 2,000 gallons per minute, 2.8 million gallons per day
1.75 million gallon reservoir
Re-chlorination
Back-up generator
Many components are nearing end of useful life ~ 30 years
Study initiated to determine recommend repairs

28. Summary of Report Findings
Upgrade electronic control system (SCADA)[$120,000]
Replace Automatic Transfer Switch and Motor Control Center [$75,000]
Convert To A Liquid Chlorine System [$41,000]
Valve Replacement and Installation [$58,000]
Total of all recommend repairs [$500,000]
Upgrade electronic control system (SCADA) – The technology that operates the station is from based on the technology at the time of the improvements in While the existing system is still functioning, replacement parts are becoming more difficult to find. Additionally a newer SCADA system will provide more information, require less operator attention and potentially reduce overtime. A new SCADA system would have the ability to automatically generate reports and log operational information. The estimated cost to upgrade the SCADA system is $120,000.
Replace Automatic Transfer Switch and Motor Control Center – The existing electrical equipment used to power the building is obsolete, difficult to service and approaching the end of their service life. Baxter & Woodman recommends that these pieces of equipment be replaced in the next five years. The estimated cost to replace these pieces of equipment is $75,000.
Convert To A Liquid Chlorine System – The conversion from gas to liquid chlorine would improve safety at the station as liquid chlorine is easier and safer to transport. Additionally replacing the existing gas chlorination system with liquid chlorine is anticipated to increase the life of the pumps. The estimated cost for this conversion is $41,000.
Valve Replacement and Installation– Several valves are recommended for replacement or installation as part of the project. The first valve that is recommended to be installed is external to the station on East Avenue. Its purpose would be to isolate the existing water main on East Avenue to facilitate the continued operation of the pumping station in an emergency such as a main break on East Avenue. The second set of valves that are recommended to be replaced are the pump control valves. The replacement of these valves would improve the operation of the existing pumps by providing better control than the existing valves. Lastly, Baxter & Woodman recommends that a study be undertaken to assess the construction of a series of valves to bypass the East Avenue

29. Next Steps Recommend implementing identified improvements
Hire engineering firm
Complete plans and specifications
Develop detailed cost estimates
Upgrade electronic control system (SCADA) – The technology that operates the station is from based on the technology at the time of the improvements in While the existing system is still functioning, replacement parts are becoming more difficult to find. Additionally a newer SCADA system will provide more information, require less operator attention and potentially reduce overtime. A new SCADA system would have the ability to automatically generate reports and log operational information. The estimated cost to upgrade the SCADA system is $120,000.
Replace Automatic Transfer Switch and Motor Control Center – The existing electrical equipment used to power the building is obsolete, difficult to service and approaching the end of their service life. Baxter & Woodman recommends that these pieces of equipment be replaced in the next five years. The estimated cost to replace these pieces of equipment is $75,000.
Convert To A Liquid Chlorine System – The conversion from gas to liquid chlorine would improve safety at the station as liquid chlorine is easier and safer to transport. Additionally replacing the existing gas chlorination system with liquid chlorine is anticipated to increase the life of the pumps. The estimated cost for this conversion is $41,000.
Valve Replacement and Installation– Several valves are recommended for replacement or installation as part of the project. The first valve that is recommended to be installed is external to the station on East Avenue. Its purpose would be to isolate the existing water main on East Avenue to facilitate the continued operation of the pumping station in an emergency such as a main break on East Avenue. The second set of valves that are recommended to be replaced are the pump control valves. The replacement of these valves would improve the operation of the existing pumps by providing better control than the existing valves. Lastly, Baxter & Woodman recommends that a study be undertaken to assess the construction of a series of valves to bypass the East Avenue

30. Section 3 Water Financial Analysis

31. Section 4 Summary of Recommendations

32. Summary of Recommendations
Water Meter Replacement Program
Replace water meters based on:
Age of meters
Testing and Analysis
IDNR and Auditor Requirements
Best practices
Recommend HD Supply Waterworks as lowest responsible bidder using the Sensus, Inc. FlexNet and iPerl meter systems
East Avenue Pump Station Improvements
Hire engineering firm to complete detailed plans, specifications and cost estimates

33. Summary of Recommendations
Financing
Issue $2.0 million alternate revenue bond
Implement water rate increases as proposed in FY budget