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Official Informal Briefing Minutes
Tuesday, July 17, 2018 - 10:30 AM Present: Charlotte J. Nash, Jace Brooks, Lynette Howard, Tommy Hunter
Absent: John Heard
1. Water Resources Smart Cities Initiative Update
Tyler Richards, Charlie Roberts, and Steve Seachrist with the Department of Water Resources provided an update of the Smart Cities Pilot Program. No Official Action Taken.
Smart Cities Update
Thursday, July 19, 2018
Agenda
Project Review
What did we think we would learn?
What we did learn
Next Steps
Project Review
Global Cities Team Challenge
• Improve services • Promote economic growth • Enhance the quality of life
Global initiative led by National Institute of Standards & Technology
The Internet of Things (IoT)
Current • Manually read monthly
Others • The City of Lawrenceville
drives and scans meters monthly
Pilot • meters are automatically read
with manual reads to confirm data
Meters
Old
New
Gwinnett County: Industry Leader
Gwinnett County was selected because of reputation as a leader in the water and wastewater industry
Partnerships
Partnerships with: CH2M (now JACOBS), AT&T, and Qualcomm
What we planned to do
This project takes three traditionally separate activities and combines them into a single system that provides “reliable and actionable” information.
Measuring water use in system
Measuring water use in individual
customers Monitoring system
pressure
Pilot Area
Pilot Area
Pilot Area: • 500 Homes • Various types of pipe • Proximity
Equipment Installation
Smart Meter Install Closed Meter Box
Equipment Installation
Fire Hydrant Pressure Monitor
District Meter Install
Smart Cities and Advanced Metering Infrastructure (AMI)
What did we think we would learn?
What did we think we would learn?
How the application of a “Smart City” would help with:
Communication Equipment Performance Leak Detection
What did we learn?
Communication
Communication - Before
Installation of meters
Public meeting • Advertising included flyers
and a webpage • 12-15 attendees
Communication - During
Communication to the customer • Calls • In person visits
Communication with the meters • Smart Cities Dashboard
Smart City Dashboard
Equipment Performance
Smart Meters
Reliability • Meter data is generally reliable and
accessible
Accuracy • Ultrasonic meters are more
accurate at low flows • Current meters fall off below 0.25
gallons per minute
Meter Security
• Tamper alerts • Backflow alerts
All customer meters have
Data Security
What data is actually transferred from a meter? • Consumption data and coded premise i.d. number • No personal information is transferred
Can someone else block meters and cause an issue for GC getting the data? • In theory, yes, but meters can be manually read also
Leak Detection
Customer value
Customer leak 21 customer success stories
Gwinnett County System Water loss
Customer Consumption Water in System
Small leaks have a big impact!
Hydrant leak repaired
Loss reduced by more than half
Fire hydrant flushed
Leaks Summary
14% of accounts had low continuous flow
Leaks in County system are detected easily
Water leaks and unusual usage are quickly detected
Leaks affecting the County
Start a leak education program in the pilot area • Common leak locations • Harder-to-find leaks • Home plumbing PRV education
Communication plan for smart meters and leaks
Leak Education Program
Pressure Reduction
Reduction in Losses & Consumption
After pressure reduction of 20 psi:
System losses were reduced by 7.5%
Customer usage was reduced by 8.5%
Leaks on the Gwinnett Side
100,000 gallons average
consumed per day in pilot area
5,000
Gallons lost per
day (5%)
375 Gallons
saved with Pressure reduction per day
What are we doing?
Where are the current projects?
What is our goal?
Pressure Management Program
Pilot Project Benefits
Conserving Water • System Leaks • Customer Leaks
Environmental Stewardship
Saving Money
Next Steps
Business Case
Perform a business case evaluation for smart meters • Comprehensive estimated cost/benefit to
the County • The best meter technology for the
County’s needs
Continuing the pilot area
Test leak detection
technologies Test battery
life Pilot for leak
education Unknown unknowns
Future Partners
WRF • Project to add “smart PRV” technology • Allows pressure reductions at night • Bypasses if large demand occurs (fire, main
break, etc.)
EPA • Interested in remote water quality sensors • Measures several parameters • Proper disinfection and indication of
tampering
Questions?
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