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Planning and operating for Resiliency in Water and sewer services

Planning and operating for Resiliency in Water and sewer services. Bryan R. Tillery, Manager of water quality/operations Warren county water district. Warren County Water District. Joint Operations agreement with Simpson County Water District and Butler County Water System 47,000 accounts

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Planning and operating for Resiliency in Water and sewer services

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  1. Planning and operating for Resiliency in Water and sewer services Bryan R. Tillery, Manager of water quality/operations Warren county water district

  2. Warren County Water District • Joint Operations agreement withSimpson County Water District andButler County Water System • 47,000 accounts • 1,200 mi2 Service area • Population served: 88,000 people

  3. Resilient system design Storage tanks Distributed throughout system 24-hour+ Average day capacity System pressurization via gravity

  4. Resilient system design • Flexible Piping • Gasketed joints allow for angular deflection and axial deflection • Axial deflection allows for thermal expansion • Plastic material permits limited flexibility between pipe joints • Flexible piping better accommodates ground movement

  5. Resilient system design • Redundant Facilities • Alternative transmission routes • Distributed transmission mains • Looped network of pipes • Redundant components at facilities

  6. Butler County WTP Standby Power System • Challenge… • 100 year flood level at Plant’s Raw water intake is 10 feet above grade • Plant’s raw water intake is 2,000 feet from water plant

  7. Butler County WTP Standby Power System • Solution… • Single generator for main plant and raw water intake • Isolate power distributor’s primary at plant • Energize power lines to raw intake with generator • Automatic transfer switch for plant • Manual transfer switch for raw water intake

  8. Butler County WTP Standby Power System • Safety • Numerous safety procedures in place • Safety interlock disables manual switch if power line is not isolated • manual switch door is double locked by both water district and power distributer • Switching procedures clearly and permanently posted

  9. Resilient system Operation • Demand Response • TVA 30 minute program • Power Outage Exercise • “Event” Preparation • Spare & Repair components • Manual, non-automated Operability

  10. Questions… Contact: Bryan R. Tillery Warren county water district bryant@warrenwater.com www.warrenwater.com

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