NC AWWA-WEA 95th Annual Conference Integrating Asset Management into Winston-Salem’s Wastewater System Master Plan CIP Kevin T. Laptos, Black & Veatch

Acknowledgement Co-Authors Courtney Driver, City of Winston-Salem Jeff Stillman, Black & Veatch Katy Weidner, Black & Veatch Kent Lackey, Black & Veatch

Agenda Evolution of System Planning Traditional Planning Processes Asset Management Approach Case Study – 2015 Winston-Salem Wastewater System Master Plan System Overview Asset Management Elements and Recommendations CIP Summary and Budgeting

Evolution of system planning

Traditional Master Planning Process (Capacity) Recommended Capital Improvements Alternatives Analysis Capacity Analysis Model Update and Calibration Regulatory Drivers Population Projections & Growth 5, 10, 20 Year Capital Planning Update Cycle Typical Planning Processes

Annual Operations Budget Update Cycle Current Asset Management Process (Condition & criticality) Recommended Capital Improvements Business Risk Exposure and Prioritization Consequence of Failure Likelihood of Failure Condition & Performance Assessment Annual Operations Budget Update Cycle Typical Planning Processes

Water and Sewer Utilities – Traditional Organization challenges Operations Engineering Silos lead to system planning pitfalls

Traditional Sewer sizing Pitfall Selecting a replacement (or new) sewer size without considering future flows due to system growth and/or I/I reduction

Asset Management approach to system planning Provides a comprehensive and coordinated Master Plan CIP

Budget Master Planning Process Capacity Planning Population Projections & Growth Regulatory Drivers Model Update and Calibration Capacity Analysis Alternatives Analysis Recommended Capital Improvements Capacity Planning System Planning Review & Update 15 Year CIP 5 Year CIP Projects for Budget Reconcile Projects Proposed Budget Rate Modeling Budget Asset Management Process Condition Assessments Update SAMS Spreadsheets Prioritize Potential Projects Confirm Project Rankings Finalize Planned Improvements Operational Planning

Case Study: 2015 Winston Salem Wastewater Master plan

Winston-Salem/Forsyth County Utilities Commission – System Overview Over 90,000 Sewer Customers 1,724 miles of Sewers 49 Lift Stations 36 MGD treated daily 3 primary sewer basins CASE STUDY: Winston-Salem

Winston-Salem MP – Asset Management Elements Organization Assessments: PAS 55 CMOM Facility Assessments: Condition & Criticality Scoring Asset Group Life Cycle Analysis Pipeline Assessments Desktop analysis By sub-basin

PAS55 – Checklist for Good Asset Management Practice Similar to ISO 55000 Standards and Guidance

PAS 55 Asset Management Maturity Scoring

Pas55 Gap Analysis Results Strengths: Contingency Planning; Communication, Participation, and Consultation; Legal; Tools, Facilities, and Equipment; Compliance Evaluation Improvement Focus Areas: Asset Management System; Risk Management; Life Cycle Activities

CMOM Evaluation High Priority Recommendations: Capacity Management: prevent SSOs through proactive cleaning and focused preventative maintenance. SSO response: Record rainfall data to track wet weather SSOs Customer Service: Track information on the status of SSO serve requests Low Priority Recommendations: Capital Planning: Do a better job of coordinating project planning between the C&M and Capital planning departments C&M: Develop a post-SSO water quality management plan FOG program: Identify major contributors and budget for education On-track with previous (2012) recommendations resulting in a drop in SSOs/100 miles from 16 in 2002-2003 to just 7 in 2011-2012

Facility assessments Lift Station Inspections Hydraulic Capacity Condition and Criticality Risk-Based Prioritization Life Cycle/O&M Improvements

Lift Station Inspections Condition and Criticality Ratings by Asset Group: I&C Electrical Structural Mechanical Pumps Pipes Valves Auxiliary Equipment: Generator

Risk-based prioritization Developed from Inspection Condition and Criticality Ratings

Pipeline assessments Condition Scoring Criteria Criticality Scoring Criteria (Consequence of Failure)

Pipeline Prioritization by Sub-basin

Winston-Salem Asset management Recommendations & cip budget planning

Ramping up on Asset Management activities

CIP Budget planning – Collection System Rehabilitation and Replacement (R&R) “firm 75-Year” pipeline service Life In the second graph the high magnitude of spending from 2017-2019 is spreadout over the entire next decade. Useful life of 75 years (only) “Condition managed” Pipeline service Life

CIP Budget planning – Collection System capacity and R&R

MANAGING THE CIP AND BUDGET FORECASTS USING iCIP Add, remove, or update projects via an interface with GIS Update project phasing based on system performance triggers Update and refine projects stemming from on-going R&R program Provides dynamic CIP budget forecasting and reporting Immediately shows results of decisions A customized technical approach for project success

NC AWWA-WEA 95th Annual Conference Questions or comments? Kevin T. Laptos, Black & Veatch