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One Water Strategies in New Braunfels: Managing Demand to Increase Sustainability and Resiliency

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Presentation by Ryan Kelso, Director of Water Services and Compliance for New Braunfels Utilities, for the 2019 Gulf Coast Water Conservation in Houston, Texas.

Published in: Environment
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One Water Strategies in New Braunfels: Managing Demand to Increase Sustainability and Resiliency

  1. 1. One Water Strategies Managing Demand to Increase Sustainability and Resiliency
  2. 2. New Braunfels Utilities • Municipal Utility • Water, Wastewater, Electric • Fast growth corridor • Growth’s Impact: Infrastructure, Facilities, Employees, Expectations
  3. 3. Water Resource Plan
  4. 4. One Water Approach
  5. 5. Hallmarks of One Water A mindset that all water has value Focus on achieving multiple benefits Systems Approach Watershed-scale thinking and action Right-sized solutions Partnerships for progress Inclusion and engagement for all
  6. 6. One Water Strategies for NBU • Reviewing systems and operations for opportunities. • Sustainability and resilience are key management principles. • Partner with leaders in the field for best practices and implementation
  7. 7. Project partners Deep dive into the Water Resource plan was conducted by a project team at Boston University’s Institute for Sustainable Energy, as part of a broad initiative on One Water opportunities in Texas funded by the Cynthia and George Mitchell Foundation
  8. 8. NBU’s GPCD New Braunfels (168) 0 50 100 150 200 250 300 GallonsPerCapitaPerDay (2009-2014) Texas Cities GPCD 0 50 100 150 200 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 GallonsPerCapitaPerDay New Braunfels GPCD from 2010 - 2018 GPCD
  9. 9. Future demand projection • Recent water demand growth has been approximately 4% per annum even as the population increases at 6% per annum. • Modifying the demand projections accordingly indicate that NBU has adequate supplies for over a decade. 0 50000 100000 150000 200000 250000 0 5000 10000 15000 20000 25000 30000 35000 2009 2011 2013 2015 2017 2019 2021 2023 2025 2027 2029 2031 2033 2035 2037 2039 2041 Population AcreFeet(PerYear) New Braunfels Water Supply & Demand with DOR Supply Thresholds and Population Actual Usage Actual Pumped Firm Yield DOR Median Yield DOR Average Year Supply Max Year Supply Projected Demand Population
  10. 10. Demand management opportunities • Often One Water discussions focus on the supply side, yet demand management and water conservation also play a role • Consideration of residential versus non-residential demand • Informs modified demand projections • Consideration of distribution of demand across accounts • Ordinance modifications • Outreach to high-consumption users • Reviewing Rebates
  11. 11. Residential versus non-residential consumption • Although non-residential accounts are very small in number, they are significant in overall consumption • Therefore the assumption that water demand would increase in proportion with the population increase is not necessarily valid Usage By Source, All Accounts Commercial General Commercial Irrigation Other Public General Public Irrigation Residential General Residential Irrigation
  12. 12. Distribution of consumption by account • The top 0.1% of accounts constitute 10% of total water demand and the top 1% of accounts constitute 27% of total water demand 0 100,000,000 200,000,000 300,000,000 400,000,000 500,000,000 600,000,000 700,000,000 800,000,000 900,000,000 90 90.6 91.2 91.8 92.4 93 93.6 94.2 94.8 95.4 96 96.6 97.2 97.8 98.4 99 99.6 GallonsofWaterConsumed(FY2017- FY2019) Water Consumption Percentile Water Usage by Percentile (Top 10%)
  13. 13. Outreach to high consumers • Identify high-percentile accounts • Determine the end-uses of water • Identify one-time change options • Create and implement an action plan
  14. 14. Ordinances • Review and assess how fines are assessed by volume. • Determine cap for scaled fines by customer type. • Create fine structures created by customer groups.
  15. 15. Current Internal Adjustments • State of the Art Leak Detection program • Wastewater management systems review • Meter Replacement Program
  16. 16. Future Internal Adjustments • Neutral Output Discharge Elimination System • E-Pulse • WaterSmart Customer Service Portal
  17. 17. Headwaters at the Comal
  18. 18. Phase I focus on: • Restoration: • Remove asphalt • Debris removal • Invasive species removal • biodiversity planting and seeding • Creation of habitat pools and ripples • Storm Water Mitigation: • Check dams • Creating Berms & Bioswales • Bank Stabilization
  19. 19. Phase II Buildings • Comal Springs Environmental Education Center • Event & Meeting Space • Demonstration gardens • Smart building applications
  20. 20. Phase II additional features • Rainwater harvesting • Black water reuse system • Permeable walkways and parking areas • Smart building applications • Low impact development – reuse of materials
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