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October Session: 
Water Utilities & Lead Line Inventory 

Thursday, 26 October 2023

10:00am MT

Using GIS for State and Local Government Asset Management WEBINAR SERIES

Identifying and replacing lead pipes in a water utility is key to ensuring safe community drinking water. Join this session to learn about integrating GIS for more efficient and effective lead line inventory.



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Water utilities play a critical role in ensuring that safe and clean water is delivered to communities. One area of concern for many water utilities is the presence of lead in drinking water, which can cause serious health problems. To address this issue, water utilities often maintain a lead line inventory, which involves identifying and replacing lead pipes in the distribution system. Geographic Information Systems (GIS) technology is often used to support these efforts, as it allows utilities to map and analyze the location of lead pipes in relation to other infrastructure and demographic data. This helps utilities to prioritize replacement efforts and ensure that resources are targeted where they are needed most. Overall, water utilities' use of GIS for lead line inventory is an important step in protecting public health and ensuring safe drinking water for all.

GISP Points

This event may qualify for GIS Certification Institute continuing education credits.

To submit for GISP Points, visit to self-submit the event curriculum for approval





  • Cities/Towns/Municipalities

  • Campuses/Zoos/Parks

  • Enterprises

  • DOTs


  • Managers, Analysts, and Directors

  • Elected Officials

  • Department Heads and Division Directors


  • Land Administration

  • Transportation Planning & Management

  • Utilities Planning & Management

  • Law Enforcement/Fire/Public Safety

  • Public Administration

  • Economic Development

  • Urban Planning

  • Parks and Recreation

  • Public Information Services

  • Public Works

  • Purchasing

  • Sustainability

  • Welfare and Human Services

  • Environmental Planning, Management, and Services

  • Treasury and Budget

  • Risk Management

  • and more ...


Thursday, 26 October 2023
All times in US (Denver) Mountain time



Welcome and Introductions

Moderator: Nadine Alameh, Executive Director, Taylor Geospatial Institute

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A brief overview of using GIS for Water Utilities & Lead Line Inventory, and introduction of the webinar presenters.



Water Utilities & Lead Line Inventory Asset Management

Howard Crothers, Utilities Solution Lead, Esri

Alex Kabak, Product Engineer, Esri

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An overview of Esri solutions for Water Utilities & Lead Line Inventory 



Mapping 80,000 Lead Service Lines in America’s Largest City Geographically

Bryan Peckinpaugh, Public Affairs Director, Detroit Water and Sewerage Department

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Detroit has 80,000 lead services in a city that spans 139 square miles. You can fit San Francisco, Boston and Manhattan within our city boundaries. Detroit is mainly single-family homes with a scattering of duplexes. Find out how we used data and data sampling to map the probable locations, to map the most vulnerable areas where lead service lines may exist, and to determine community outreach in advance of lead service line replacement.



Bad Elf Geospatial Enablement- Lead Service Line Inventories for SLGs

David Grafton, Geospatial Lead, Bad Elf

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The powerful combination of Bad Elf GNSS Receivers and the ArcGIS Online Lead Service Line Inventory empowers municipalities currently dependent on paper maps or outdated inspection practices to significantly enhance efficiency through digital asset mapping of lead service lines in their community.  The unique solution provides invaluable assistance to organizations in upholding compliance with National Primary Drinking Water Regulations: Lead and Copper Rule Revisions. 



Using Statistics and Machine Learning to Inventory and Locate Lead Service Lines

Dunrie Greiling, Ph.D., VP Marketing, BlueConduit

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The Lead and Copper Rule Revision requires water utilities to create and maintain service line inventories. Incomplete, inaccurate, and unreliable historical records make it challenging; best practices in statistics and data science can be used to develop more accurate inventories, create realistic budgets, inform capital planning, communicate risk to the public and manage LSL replacement programs. In this talk, we highlight case studies of how cities have used statistics and machine learning to develop inventories and make sense of historical data, including at service lines with “unknown” material. We will draw upon key insights from these examples that can help other cities as they create their inventories. If the Lead and Copper Rule Improvements are available ahead of this event, we will include a quick review of the updates in this presentation.


11:00am - 11:30am

Industry Solution Provider Panel/Audience Q&A


Howard Crothers, Utilities Solution Lead, Esri

Alex Kabak, Product Engineer, Esri

Bryan Peckinpaugh, Deputy Director of Public Affairs, Detroit Water and Sewerage Department

David Grafton, Geospatial Lead, Bad Elf

Dunrie Greiling, Ph.D., VP Marketing, BlueConduit

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A roundtable discussion among industry solution providers and presenters, focusing on Water Utilities & Lead Line Inventory, followed by live audience questions and answers.



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Nadine Alameh

Executive Director
Taylor Geospatial Institute

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Nadine Alameh is the Executive Director of the Taylor Geospatial Institute, a position she assumed in September 2023.  A world-renowned geospatial expert, Nadine was previously the CEO and president of the Open Geospatial Consortium. She is also an appointed member of the U.S. Department of Interior’s National Geospatial Advisory Committee and a board member of the United Nations Geospatial Global Information Management Private Sector Network. Before taking the helm at OGC, Nadine held various roles in industry, from the chief architect for innovation in Northrop Grumman’s Civil Solutions Unit, to CEO of an aviation data exchange startup, to senior technical advisor to NASA’s Applied Science Program. In the early 2000s, she launched and led several successful startups. Nadine has received numerous honors during her career, including the 2019 Geomatics Canada Leadership in Diversity Award, the 2022 Geospatial World Diversity Champion of the Year Award, and the 2023 Women in Technology Leadership Award in the nonprofit and academia category. Nadine earned a doctorate in computer and information systems engineering from the Massachusetts Institute of Technology, where she also earned master’s degrees in civil and environmental engineering and city planning. She earned a bachelor’s degree in engineering from the American University of Beirut. 

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Howard Crothers

Utilities Solution Lead

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Howard Crothers is the Utilities Solution Lead with Esri.  Howard leads the Esri team developing ArcGIS Solutions for electric, gas, water, sewer, stormwater, communications, renewables, and district heating and cooling.

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Alex Kabak

Product Engineer

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Alex Kabak is a Product Engineer on the Utilities Solution team at Esri. He focuses on the Water and Wastewater Utilities and developed Esri’s Lead Service Line Inventory solution.

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Bryan Peckinpaugh

Public Affairs Director
Detroit Water and Sewerage Department

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Bryan Peckinpaugh has been with the Detroit Water and Sewerage Department (DWSD) seven years and currently serves as the Public Affairs Director. He is responsible for customer education, integrated advertising, community outreach, government relations, and media relations with a team of talented professionals. Peckinpaugh previously had public relations roles with several city and county elected officials and was in a similar role at the American Red Cross – Southeastern Michigan Chapter. At DWSD, he is one of the original team members when the department launched the Lead Service Line Replacement Program and crafted an extensive outreach strategy that has led to 100% compliance with residents of lead service line replacements. Detroit uses local, state and federal funds for the program and does not charge the residents for the direct cost of replacement.

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David Grafton

Geospatial Lead
Bad Elf LLC

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Dave Grafton is a Geospatial Lead with Bad Elf and recent graduate of the Geographic Information Sciences masters program at Arizona State University. David has four years of experience in the field of GIS and enjoys applying and sharing his knowledge of GNSS technology day in and day out to allow customers to maximize their geospatial potential.  Previously, he has worked as an intern for the state of Arizona in the Arizona Game and Fish Department and the Center for the Future of Arizona to provide useful and reliable spatial information for the public’s benefit.

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Dunrie Greiling, Ph.D.

VP Marketing

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Dunrie Greiling is BlueConduit’s VP of Marketing. She combines her training in science (biology Ph.D., University of Michigan) with her two decades of experience in tech startups. Prior to joining BlueConduit, she worked in science-based software and device companies in many roles, as an employee, as a consultant, and as an advisor and entrepreneur-in-residence.



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Bad Elf GNSS receivers deliver affordable accuracy through easy-to-use hardware supported by continuously evolving firmware, apps, and cloud services. Founded in 2010, Bad Elf created the first Made for iOS external GPS accessory and now enables high performance location services for all mobile platforms.

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The World Geospatial Industry Council is an association of companies representing the entire ecosystem of geospatial industry. WGIC endeavors to enhance the role of the geospatial industry and strengthen its contribution in global economy and society. We facilitate exchange of knowledge within the geospatial industry and co-creation of larger business opportunities for the geospatial industry. We represent business interest, share perspectives of the geospatial industry and undertake policy advocacy and dialogue with public authorities, multilateral agencies and other relevant bodies.

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Geographic Technologies Group (GTG) is committed to advancing the science of location intelligence and geospatial technology.  We want to inspire, push the envelope, break through boundaries, solve problems, and introduce a new kind of decision support. We go beyond location intelligence to plan, design, build, implement, transform, and maintain. We use spatial information to empower understanding, influence the decision-making process, offer new insights, reveal new data relationships, predict events, engage and educate the community, and solve problems of the future. The ultimate outcome is a smarter, more resilient, and sustainable government. We create location intelligent organizations!

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