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

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

Embrace Technology

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

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

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)

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.

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

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

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

Apparent Losses due to meter inaccuracy The AWWA says “…16% of all domestic water consumption occurs at flow rates <1GPM…” http://www.awwa.org/publications/journal- awwa/abstract/articleid/24409.aspx The EPA WaterSense Group says that “10% of homes leak 90 gallons or more a day” https://www3.epa.gov/watersense/pubs/fixleak.html

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

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

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.

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?

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

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

Theft Use Analytics to monitor/manage theft

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

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

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

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,

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

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