Draft Water Master Plan Capital Improvement Program

Transcription

1 Draft Water Master Plan Capital Improvement Program December 17, 2014 Tualatin Valley Water District Water Master Plan Today s meeting: Water Master Planning and CIP overview Origin of the Draft Level of Service Goals Draft Capital Improvement Program budgets and timing Next Steps 1

2 The Water Master Plan process generates a CIP designed to meet the LOS Goals Master Planning Process Water Demands and Supplies LOS Goals System Analysis Water Master Plan CIP 3 The Water Master Plan CIP is one element of the overall TVWD CIP TVWD Capital Improvement Program Water Master Plan CIP Operations CIP JWC CIP Willamette Water Supply Program 4 2

3 It is also important to keep the level of cost certainty in mind Estimate Class Expected Accuracy Range Class 5 Low: -20% to -50% High: +30% to +100% Class 4 Low: -15% to -30% High: +20% to +50% Class 3 Low: -10% to -20% High: +10% to +30% Class 2 Low: -5% to -15% High: +5% to +20% Class 1 Low: -3% to -10% High: +3% to +15% Level of Project Definition Typical Purpose 0% to 2% Concept Screening 1% to 15% Study or Feasibility 10% to 40% Budget, Authorization, or Control 30% to 70% Control or Bid/Tender 50% to 100% Check Estimate or Bid/Tender Source: The Association for the Advancement of Cost Engineering (AACE) International Recommended Practice No. 18R Level of Service Goals are a bridge between policy and criteria 6 3

4 The Washington TVWD County, Oregon Vision, Mission, and Values provided a starting point for creating the LOS Goals Our Vision: Delivering the best water, service, value. Our Mission: To provide our community quality water and customer service. Our Values: Reliability, Integrity, Stewardship, Excellence, Safety. 7 We focused on the key components of these statements Our Vision: Delivering the best water, service, value. Our Mission: To provide our community quality water and customer service. Our Values: Reliability, Integrity, Stewardship, Excellence, Safety. 8 4

5 Staff identified three categories for which LOS Goals were developed Draft LOS Goal Category Reliability and Resiliency Water Quality Sustainability and Stewardship TVWD Vision, Mission, Values addressed Reliability Integrity Customer Service Quality Water The Best Water Integrity Stewardship 9 For each LOS Goal category, three event scenarios helped focus the mission Event Scenarios Normal operations Characteristics Day to day operations with all facilities and supplies functional. Minor events with minimal service disruption and duration of less than 8 hours. Significant event Multiple concurrent events Duration of longer than 8 hours Larger portion of service area affected Catastrophic event Cascadia Subduction Zone Earthquake 10 5

6 Draft LOS Goals Draft LOS Goals Reliability and Resiliency Event Scenario LOS Goal Normal Operations Provide sufficient supply and pressure to meet customer demands in all areas of the District. Significant Event Meet most customer demands, including fire suppression requirements, while maintaining a minimum of 20 psi in the distribution system Catastrophic Event Meet Oregon Resilience Plan goals by

7 Draft LOS Goals Water Quality Event Scenario LOS Goal Normal Operations Meet all current regulatory requirements Significant Event Meet all current regulatory requirements Catastrophic Event Meet all current regulatory requirements at key water distribution locations 13 Draft LOS Goals Sustainability & Stewardship Event Scenario LOS Goal Normal Operations Optimize useful life of all District assets. Design, construct, and operate system improvements in accordance with the District s Sustainability and Safety Policies. Limit system leakage to no more than 10% of water purchases Significant Event Optimize useful life of all District assets. Limit system leakage to the extent practical. Catastrophic Event Provide access to water meeting critical needs of the community. Limit system leakage to the extent practical. Facilitate recovery of the community over time. 14 7

8 Draft Water Master Plan CIP Budgets Water Master Plan CIP budgets organized by LOS Goal and scenario LOS Goal Category Normal Operations Significant Event Catastrophic Event Total Reliability and Resiliency Water Quality Sustainability and Stewardship $127 M $12 M $111 M $250 M $0 M $0 M $0 M $0 M $0 M $0 M $111 M $111 M Total $127 M $12 M $222 M $361 M 16 8

9 Staff are now beginning to schedule the Water Master Plan CIPs Staff are now beginning to schedule the Water Master Plan CIPs 9

10 Next Steps Address comments and questions received at this meeting. Identify which Water Master Plan CIPs must occur in the next 10 years, and which can be delayed. Compile and prioritize all the District s capital projects. Evaluate and refine the timing of the CIP projects in concert with the District s overall financial planning. Perform fine tuning of the CIP and provide an updated presentation to the Board in March