1. SC Rural Water Conference 2016
Non-Revenue Water & Smart Water Networks
Tyler Moore - Sensus

2. Today’s Discussion
Use Water Balance Matrix to organize, identify, and prioritize factors of water loss as it pertains to non-revenue water.
Describe how the use of Smart Water Networks can be used to target these factors to improve NRW.
Breakdown of Non-Revenue Water (NRW)
Monitoring/Reducing Non-Revenue Water with Smart Water Networks
Summary - Top 3 Ways to Reduce NRW

3. Embrace Technology

4. Vicious NRW Cycle
1. NRW Increases
2. Operational costs increase
3. Increased capital expense to meet demand.
4. Budgets are decreased restricting corrective actions to reduce NRW

5. Virtuous NRW Cycle 1. NRW Decreases
4. Funding is available to invest in additional NRW reduction
3. Capital spending for supply increases is deferred
2. Operational costs decrease, revenues increase

6. Consumption/ Losses with Billing and Loss Type
Water Balance Matrix
Sensus Water Balance
Source
Surface Water Plants
Ground Water
Purchased Water
Total Water
Total System Water Input
Consumption/Losses
Authorized Consumption
Water Losses
Consumption/ Losses with Billing and Loss Type
Billed Authorized Consumption
Un-Billed Authorized Consumption
Apparent Losses
Real Losses
Use Type
Billed and Collected Metered Use
Billed and Collected Un-Metered Use
Billed Not Collected Metered Use
Unbilled Metered Use
Unbilled Un-Metered
Unauthorized Use
Metering Inaccuracies
Leaks On Transmission and/or Distribution Mains
Leaks On Service Connections Up To Customer Meters
Storage Tank Leaks And Overflows
Revenue/ Non Revenue
Revenue Water
Non-Revenue Water
Examples
Municipal Transfer, Residential Use Commercial and Industrial Use, Including Customer Leaks
Flat Fee Structures for Accounts
Residential Use Commercial and Industrial Use, but Payment not Collected, Leaks
Billing Errors, City Use, Other Authorized Non Payment Applications, Flushing
City Use, Other Authorized Non Payment Applications, Flushing
Theft, Illegal Taps, Tamper
Residential, Commerical Meters, Tamper
Based upon the IWA/AWWA methodology
* Water Balance illustrates how water in brought into the system and consumed (or lost)

7. Water Balance Inputs
Sensus Water Balance
Source
Surface Water Plants
Ground Water
Purchased Water
Total Water
Total System Water Input
Consumption/ Losses
Authorized Consumption
Water Losses
- Input screen describes how water is obtained and whether the consumption is authorized or not.

8. Water Balance Revenue Water
Sensus Water Balance
Consumption/Losses
Authorized Consumption
Consumption/ Losses with Billing and Loss Type
Billed Authorized Consumption
Use Type
Billed and Collected Metered Use
Billed and Collected Un-Metered Use (flat)
Revenue/ Non Revenue
Revenue Water
Examples
Municipal Transfer, Residential Use Commercial and Industrial Use, Including Customer Leaks
Flat Fee Structures for Accounts
Leaks
Metered Use

9. Water Balance Authorized Non Revenue
Sensus Water Balance
Consumption/Losses
Authorized Consumption
Consumption/ Losses with Billing and Loss Type
Billed Authorized Consumption
Un-Billed Authorized Consumption
Use Type
Billed Not Collected Metered Use
Unbilled Metered Use
Unbilled Un-Metered
(flushing, city bld)
Revenue/ Non Revenue
Non-Revenue Water
Examples
Residential Use Commercial and Industrial Use, but Payment not Collected, Leaks
Billing Errors, City Use, Other Authorized Non Payment Applications, Flushing
City Use, Other Authorized Non Payment Applications, Flushing
Flushing
Unmetered Use

10. Water Balance Apparent Losses
Sensus Water Balance
Consumption/Losses
Water Losses
Consumption/ Losses with Billing and Loss Type
Apparent Losses
Use Type
Unauthorized Use
Metering Inaccuracies
Revenue/ Non Revenue
Non-Revenue Water
Examples
Theft, Illegal Taps, Tamper
Residential, Commercial Meters, Tamper
Theft/Tamper
Temporary Use/ Theft

11. Apparent Losses due to meter inaccuracy
The AWWA says “…16% of all domestic water consumption occurs at flow rates <1GPM…”
awwa/abstract/articleid/24409.aspx
The EPA WaterSense Group says that “10% of homes leak 90 gallons or more a day”

12. Water Balance Real Losses
Sensus Water Balance
Consumption/Losses
Water Losses
Consumption/ Losses with Billing and Loss Type
Real Losses
Use Type
Leaks On Transmission and/or Distribution Mains
Leaks On Service Connections Up To Customer Meters
Storage Tank Leaks And Overflows
Revenue/ Non Revenue
Non-Revenue Water
Examples
Main Breaks
Overflow

13. Consumption/ Losses with Billing and Loss Type
Water Balance
Sensus Water Balance
Source
Surface Water Plants
Ground Water
Purchased Water
Total Water
Total System Water Input
Consumption/Losses
Authorized Consumption
Water Losses
Consumption/ Losses with Billing and Loss Type
Billed Authorized Consumption
Un-Billed Authorized Consumption
Apparent Losses
Real Losses
Use Type
Billed and Collected Metered Use
Billed and Collected Un-Metered Use
Billed Not Collected Metered Use
Unbilled Metered Use
Unbilled Un-Metered
Unauthorized Use
Metering Inaccuracies
Leaks On Transmission and/or Distribution Mains
Leaks On Service Connections Up To Customer Meters
Storage Tank Leaks And Overflows
Revenue/ Non Revenue
Revenue Water
Non-Revenue Water
Examples
Municipal Transfer, Residential Use Commercial and Industrial Use, Including Customer Leaks
Flat Fee Structures for Accounts
Residential Use Commercial and Industrial Use, but Payment not Collected, Leaks
Billing Errors, City Use, Other Authorized Non Payment Applications, Flushing
City Use, Other Authorized Non Payment Applications, Flushing
Theft, Illegal Taps, Tamper
Residential, Commercial Meters, Tamper

14. Monitoring and Reducing NRW with Smart Water Network
Define -Smart Water Network – Anything that provides 24/7 connectivity to Utility Assets, includes smart meters, acoustic leak monitoring, pressure monitoring, temperature, water quality, supply, and demand.

15. Non-Payment How can we prevent? Overcome issues? Other Options
Smart Meters and AMI systems find leaks faster and reduce leak adjustment losses.
10,000 x 24hrs/day x 30days/mo = 7,200,000 data points
Improved data logs for dispute resolution
Other Options
Remote Shut-Off will save time and money
Costly truck rolls – Can we use the labor to find higher value leaks or repair leaks?

16. Authorized NRW How can we prevent? How does Smart Water Help?
Ex, City Buildings, parks, flushing
How does Smart Water Help?
Need to capture consumption
Install meters, sensors

17. Theft How does Smart Water Help?
Smart meters can detect tamper, empty pipe, reverse flow.
AMI helps create awareness faster.
Fire Hydrant Monitor
Detect Illegal Use

18. Theft
Use Analytics to monitor/manage theft

19. Metering Testing Programs help find lost revenue
EPA & AWWA Facts about Meter Accuracy (Low flow)
Invest in long lasting meters
Solid State meters provide long life accuracy
Testing Programs help find lost revenue
60% of revenue comes from 10% of your meters

20. Real Losses More Data helps find the leaks Four Stages of Leak
Overflows
Awareness
Pressure
Location
Smart Meters
Repair
Acoustical monitoring
Verification

21. Real Losses Analytics tracks leak data Where do I stand?
Have we improved?
Where are the issues (geo)?
The Manager’s Non-Revenue Water Handbook, Malcolm Farley, Gary Wyeth, Zainuddin Bin Md. Ghazali, Arie Istandar, Sher Singh

22. Real Losses District Metered Area (DMA)
Breakdown your service area to smaller, more easily tracked areas.
Utilize a master meter entering the zone
The Manager’s Non-Revenue Water Handbook, Malcolm Farley,
Gary Wyeth, Zainuddin Bin Md. Ghazali, Arie Istandar, Sher Singh,

23. Summary - Top 3 Ways to Capture Non-Revenue Water
Ensure meter accuracy
Create a testing program
Capture more data
Account for all areas of the water balance
Acoustical monitoring
Measure pressure and consumption
Analyze Frequently
Baseline the data
Review on hourly basis
Use the AWWA Free Water Audit Software

24. Consumption/ Losses with Billing and Loss Type
Questions?
Sensus Water Balance
Source
Surface Water Plants
Ground Water
Purchased Water
Total Water
Total System Water Input
Consumption/Losses
Authorized Consumption
Water Losses
Consumption/ Losses with Billing and Loss Type
Billed Authorized Consumption
Un-Billed Authorized Consumption
Apparent Losses
Real Losses
Use Type
Billed and Collected Metered Use
Billed and Collected Un-Metered Use
Billed Not Collected Metered Use
Unbilled Metered Use
Unbilled Un-Metered
Unauthorized Use
Metering Inaccuracies
Leaks On Transmission and/or Distribution Mains
Leaks On Service Connections Up To Customer Meters
Storage Tank Leaks And Overflows
Revenue/ Non Revenue
Revenue Water
Non-Revenue Water
Examples
Municipal Transfer, Residential Use Commercial and Industrial Use, Including Customer Leaks
Flat Fee Structures for Accounts
Residential Use Commercial and Industrial Use, but Payment not Collected, Leaks
Billing Errors, City Use, Other Authorized Non Payment Applications, Flushing
City Use, Other Authorized Non Payment Applications, Flushing
Theft, Illegal Taps, Tamper
Residential, Commerical Meters, Tamper