1 Citizens Reservoir Quarry Conversion Ryan Taylor, PE Manager - - PowerPoint PPT Presentation

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1 citizens reservoir quarry conversion
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1 Citizens Reservoir Quarry Conversion Ryan Taylor, PE Manager - - PowerPoint PPT Presentation

Jul 02, 2023 137 likes •449 views

1 Citizens Reservoir Quarry Conversion Ryan Taylor, PE Manager Citizens Energy Group February 12, 2019 2 Overview Project Purpose Site Mining History Site Description Project Approach Intake Structure Pumping

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Citizens Reservoir – Quarry Conversion

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Ryan Taylor, PE – Manager Citizens Energy Group February 12, 2019

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Overview

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  • Project Purpose
  • Site Mining History
  • Site Description
  • Project Approach
  • Intake Structure
  • Pumping Structure
  • Outlet Structure
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Project Purpose

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  • Customers

– 325,000 retail – 8 wholesale

  • 10 treatment plants ‐ 257 MGD
  • Average demand ‐ 125 MGD
  • Max demand ‐ 232 MGD (2012)
  • 3 main supply reservoirs
  • 4,400~ miles of main
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Project Purpose

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  • Raw Water Supply &

Treatment

  • Excess Raw Water

Capacity in Fall Creek

  • Additional Treatment

Capacity at White River Treatment Plant

Geist Reservoir Canal

White River Treatment Plant & Aqueduct Intake Citizens Reservoir Fall Creek Treatment Plant

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1941

One Room School House

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1956

30 AC

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1962

55 AC

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1972

190 AC

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1987

360 AC

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2000

220 AC 190 AC

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2018

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Site Description

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  • 90 Acre Site
  • 8 Acre Site at Elev 790
  • 230 Feet Deep
  • +3 Bgal Capacity
  • Geist Reservoir 6.7 Bgal
  • Residential Development
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Design Approach

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  • Feasibility Study
  • Stakeholder Coordination
  • Basis of Design
  • Water Quality Analysis
  • 30% Design
  • Frequency of Drawdown
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Probability of Quarry Drawdown Quarry Drawdown (ft) Corresponding Water Surface Elevation in Quarry (ft) 25 year occurrence (4%) 200 585 20 year occurrence (5%) 145 640 15 year occurrence (6.67%) 125 660 10 year occurrence (10%) 85 700 5 year occurrence (20%) 44 741 4 year occurrence (25%) 30 755 3 year occurrence (33%) 19 766 2 year occurrence (50%) 2 783

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Citizens Reservoir ‐ Intake

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Pumping Structure

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Outlet Structure

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Questions

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  • Ryan Taylor, PE – Manager Citizens Energy Group

rtaylor@citizensenergygroup.com