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Integrated Resource Plan

Integrated Resource Plan. Technical Conference 2. Today ’ s Meeting. Background Purpose of IRP Stakeholder Process Break IRP Drivers and Constraints Demand and Supply Options Lunch Round Table Discussion Next Steps. Halifax Water – Background .

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Integrated Resource Plan

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  1. Integrated Resource Plan Technical Conference 2

  2. Today’s Meeting • Background • Purpose of IRP • Stakeholder Process • Break • IRP Drivers and Constraints • Demand and Supply Options • Lunch • Round Table Discussion • Next Steps www.halifaxwater.ca

  3. Halifax Water – Background • 1945 – through the Halifax Public Utilities Commission Act – Utility and Review Board begins regulating water utilities • 1996 – Municipal amalgamation occurred – City of Dartmouth, City of Halifax, Town of Bedford and Halifax County merge • Wastewater (WW) & Stormwater (SW) assets become responsibility of new Halifax Regional Municipality (HRM) • Water system assets transferred from City of Dartmouth & Halifax County – Halifax Regional Water Commission www.halifaxwater.ca

  4. Halifax Water – Background…continued • 2007 – HRM transferred WW & SW assets to Halifax Water • Regulatory oversight by UARB (WW & SW assets) • Required a few years to understand the value of the inherited assets • Historical underinvestment in WW & SW assets • 2010 – Halifax Water rate case made it clear that a long term planning approach was needed • 2011 – NSUARB orders Halifax Water to prepare IRP www.halifaxwater.ca

  5. Regulatory Oversight Government oversight of municipal water utilities is provided by two government agencies: Nova Scotia Utility and Review Board (NSUARB) Nova Scotia Environment (NSE) Regulates water safety issues Regulates water rates www.hrwc.ca

  6. Integrated Resource Plan (IRP) Overview • An Integrated Resource Plan (IRP) is a comprehensive planning method that: • Uses a long-term planning horizon • Recognizes environmental constraints • Includes stakeholder participation • Assesses supply-side & demand-side management options • Uses scenario analysis • Conducts least cost financial analysis on scenarios that fulfill the performance requirements • Recommends a preferred plan www.halifaxwater.ca

  7. Integrated Resource Plan (IRP) Overview • The purpose of the IRP is to create: • Method for evaluating alternative servicing scenarios • Long-term direction for Halifax Water • Comprehensive assessment of system & investment options • Framework for detailed capital investment analysis (more detailed will be done as capital needs are budgeted and approvals requested) • Risk management plans for issues & key uncertainties facing Halifax Water • Confidence in financial analysis in support of future rate applications to the NSUARB www.halifaxwater.ca

  8. IRP Charter “We will create an Integrated Resource Plan (IRP) that provides clear direction for Halifax Water and its rate-payers on the resources required to develop world-class cost-effective water, wastewater and stormwater infrastructure systems that meets the needs of the present and future generations. The IRP will also determine the capital and operating costs required to support the present and future infrastructure systems.” www.halifaxwater.ca

  9. IRP Scope • IRP will address infrastructure within Halifax Water’s mandate • Water system • Wastewater system • Stormwater system • IRP scheduled for completion by June 2012 www.halifaxwater.ca

  10. Halifax Watersheds www.halifaxwater.ca

  11. Water, Wastewater & Stormwater Infrastructure Asset Renewal Private and On-lot Not Included in IRP www.halifaxwater.ca

  12. Lakes, Streams and Rivers, Wetlands - Nova Scotia Environment Stormwater Systems: Multiple Jurisdictions On-Lot Drainage - Halifax Regional Municipality and Property Owner Floodplains - Nova Scotia Environment and Halifax Regional Municipality Storm Sewers, Inlets, Ditches Culverts and SWM Ponds – Halifax Water Major Drainage Routes - Halifax Regional Municipality www.halifaxwater.ca

  13. Integration in the IRP • Common planning and land use projections used to integrate requirements across all infrastructure systems • Common decision framework and criteria used to determine integrated project/program priorities • Wastewater priorities assessed on a sewershed basis for WWTF effluents, CSOs and SSOs www.halifaxwater.ca

  14. Integration in the IRP… continued • Integrated analysis of WW & SW systems to assess impacts on WW collections and treatment facilities • Demand & supply integration options (e.g. water efficiency) will provide benefits to both water and wastewater systems • Common costing and financial analysis framework www.halifaxwater.ca

  15. IRP Process NSUARB Tellus / Wright-Pierce / Hydrologics Halifax Water IRP Stakeholders Real time collaboration with Halifax Water & NSUARB Consultation Genivar / XCG / Halcrow www.hrwc.ca

  16. IRP Stakeholder Process • March 24, 2011 • October 4, 2011 • December 6, 2011 • March 6, 2012 • May 9, 2012 • Technical Conferences • Terms of Reference • Assumptions & Plan Considerations • Resource Plans & Sensitivities • Resource Plan Analysis • Present Draft IRP • One-on-One Stakeholder Meetings • Early identification of issues www.halifaxwater.ca

  17. Finding the Preferred IRP • IRP Drivers • Demand / Supply Options • Assumptions Technical Conference 1 IRP Terms of Reference Stakeholder Meetings Technical Conference 3 Assemble Resource Plans Technical Conference 2 www.halifaxwater.ca

  18. Finding the Preferred IRP…continued Evaluate Performance/Assess Costs Candidate Plan Analysis Technical Conference 4 Halifax Water Integrated Resource Plan Technical Conference 5 Prepare Draft IRP www.halifaxwater.ca

  19. What We Heard • Have Halifax Water to be the leader on a number of issues outside Halifax Water’s mandate • watershed planning • on-site systems monitoring and programs • land use planning • stormwater management • Explain the jurisdictional constraints across the infrastructures • Broaden the IRP outreach to include the general public • Prepare ratepayers / stakeholders for the rate increases that will likely come out of the subsequent rate application www.halifaxwater.ca

  20. Break www.halifaxwater.ca

  21. IRP Integrates Three Drivers GROWTH COMPLIANCE ASSET RENEWAL www.halifaxwater.ca

  22. Asset Renewal www.halifaxwater.ca

  23. Current Asset Profile • Water System • Large Water Supply Plants – 3 • Small Community Water Supply Plants – 2 • Small Community Well Systems – 3 • Storage – 18 Reservoirs • Pumping Stations – 20 • Transmission/Distribution Mains – 1,307 km • Control chambers – 110 • Appurtenances ~21,000 • Water Meters – 79,000+ • Dams – 6 www.halifaxwater.ca

  24. Current Asset Profile • Wastewater System • Harbour Solutions Wastewater Treatment Facilities – 3 • Large Wastewater Treatment Facilities – 4 • Small Community Wastewater Treatment Facilities – 8 • Pumping Stations – 172 • Sewers – 1,400 km • Storage – 5 • Appurtenances ~22,000 www.halifaxwater.ca

  25. Current Asset Profile • Stormwater System • Storm Sewers – 789 km • Cross culverts – 8 km (estimated) • Ditches – 130 km • Retention Ponds – 25 • Appurtenances ~32,000 www.halifaxwater.ca

  26. Expected Asset Lives Tools & work equipment 5 – 30 years Office equipment, transportation 3 – 10 years Pumping equipment 5 – 20 years Treatment works equipment 10 – 20 years Water meters 20 – 25 years Service connections 50 – 60 years Distribution reservoirs 75 years Structures, buildings 50 – 100 years Water, wastewater & storm pipes 60 – 100 years www.halifaxwater.ca

  27. Infrastructure Asset Serviceability “Serviceability to Customers and the Environment” • The capability of a system of assets to deliver a reference level of service to customers and to the environment now and into the future • Assets are not maintained for their own sake but for the service they perform • Service indicators used to measure Levels of Service • e.g. Service outages of water (target 200 connection hrs./1000 customers per year) www.halifaxwater.ca

  28. HW Corporate Balanced Scorecard • HRWC embarked on a Continuous Improvement Program in 1999 • Introduced the concept of Corporate Balanced Scorecard (CBS) in 2001 • Developed a new mission statement in 2007 • Identified critical success factors (CSFs) in support of the new mission (e.g. High Quality Drinking Water) www.halifaxwater.ca

  29. HW Corporate Balanced Scorecard • Developed organizational indicators (OIs) to measure performance (e.g. Bacteriological tests – target 99.3% free of Total Coliform) • With the 2007 merger, Halifax Water expanded the CSFs and OIs across wastewater and stormwater infrastructure • Periodic reviews of the CSFs and OIs are done to confirm the continued relevance of specific performance indicators or in response to changing requirements • Provides the basis for establishing Levels of Service www.halifaxwater.ca

  30. System Asset Management (OIs) • Water supply leakage target of 200-210 L/service connection/day • Inflow and Infiltration (I&I) target of 200 inspections on private property/year www.halifaxwater.ca

  31. Major Asset Renewal Issues • Inherited wastewater and stormwater systems asset renewal deficit • Recapitalization needed over 30 year timeframe across all wastewater and stormwater asset classes • Water systems will also require renewal of key assets • Pockwock WSP 34 years old in need of refurbishment • Transmission mains require timely replacement to avoid catastrophic failure and strengthen system • Halifax Water extending Asset Management Program • Improving knowledge of assets and determination of optimal asset renewal rates www.halifaxwater.ca

  32. IRP Asset Renewal Assumptions www.halifaxwater.ca

  33. IRP Asset Renewal Assumptions • Renewal requirements and rates will be determined individually for each asset class • Renewal rates will be based upon: • Current condition • Expected remaining asset life • Current performance with respect to existing Levels of Service indicators • Industry benchmarks • Best professional judgment will be applied where there are data gaps • Preliminary, rough estimates for minimum asset reinvestment – $67M/year ($1.6B over 25 years) www.halifaxwater.ca

  34. Regulatory Compliance www.halifaxwater.ca

  35. Regulatory Perspectives • Principal regulation specific to each system • Water – Nova Scotia Environment (NSE), Health Canada • Wastewater – NSE, Environment Canada • Stormwater – NSE, HRM • Considers three perspectives • Existing – Current regulatory requirements • Expected – Regulatory requirements in near future • Future – Possible future regulatory requirements www.halifaxwater.ca

  36. Existing Water System Regulation • Guidelines for Canadian Drinking Water Quality http://www.hc-sc.gc.ca/ewh-semt/water-eau/drink-potab/guide/index-eng.php • Nova Scotia Environment • Capacity • Drinking Water Quality • Monitoring & Reporting • Halifax Water Response • Water Quality Management Plan • Compliance Monitoring and Reporting • CBS – Organizational Indicators www.halifaxwater.ca

  37. Water System OIs • Percentage of water supply plants meeting product regulations of their permits (ongoing) • Bacteriological tests (Monthly target of 99.3% free of Total Coliform) • Customer satisfaction about water quality (Target of 85% rating water quality as good to excellent) (annual) www.halifaxwater.ca

  38. Expected Water System Requirements • Halifax Water adopted OIs for expected requirements (extended goals) for five drinking water parameters that exceed current compliance requirements for residual disinfectant (chlorine), trihalomethanes (THM), haloacetic acid (HAA), particle removal, corrosion control (lead) • Meet all current compliance requirements • Meet most but not all OI extended goals for the water quality parameters • Water Quality Master Plan being implemented to reach compliance for all extended goals www.halifaxwater.ca

  39. Future Water Regulatory Requirements • Continued emphasis on reducing disinfection by-products e.g. THMs, HAAs and other compounds • Ensuring distribution system water quality • Residential lead • Minimum disinfectant residual • Ongoing assessment of microbial risk (e.g. Quantitative Microbial Risk Assessment (QMRA)) • New contaminants www.halifaxwater.ca

  40. IRP Water System Assumptions • Water supply systems meet current compliance requirements • Water Quality Master Plan through operational improvements will meet extended goals • Future regulatory requirements will emerge (may result in different assumptions and scenarios for future IRPs) www.halifaxwater.ca

  41. Current Wastewater Treatment Facility Regulation • Nova Scotia Environment • Capacity • Effluent Quality • Monitoring & Reporting • Biosolids Quality • Canadian Food Inspection Agency – Fertilizer Act • Biosolids Quality • Halifax Water Response • Wastewater Treatment Facilities Compliance Plan (DRAFT) • Compliance Monitoring and Reporting • CBS – Organizational Indicators www.halifaxwater.ca

  42. Current Wastewater Treatment Facility Regulation • Environment Canada – Atlantic Canada Wastewater Guidelines Manual (2006) Combined Sewer Overflows (CSOs) • All new sewer systems be designed as separate sewers • Requirements for CSO treatment specified by the regulatory agency having jurisdiction • Reduce, where possible and practical, the frequency and duration of CSOs to minimize impacts on receiving water www.halifaxwater.ca

  43. Current Wastewater Treatment Facility Regulation • Environment Canada – Atlantic Canada Wastewater Guidelines Manual (2006) Sanitary Sewer Overflows (SSOs) • Chlorination unless waived by the regulatory agencies • Alarmed and equipped to indicate frequency and duration of overflows, and designed to permit manual flow measurement • All overflows should be recorded and reported to the regulatory agencies www.halifaxwater.ca

  44. Wastewater System OIs • Percentage of wastewater treatment facilities meeting discharge regulations of their permits (excludes Harbour Solutions plants) • # of CSO and SSO events per year • # of public health and environmental regulatory infractions resulting in a written warning • # of public health and environmental regulatory infractions resulting in a conviction www.halifaxwater.ca

  45. Expected WWTF Regulatory Requirements • Environment Canada – Draft Wastewater Systems Effluent Regulations (WSER - 2011) • National Performance Standards – minimum requirements • cBOD5 <= 25 mg/L • TSS <= 25 mg/L • TRC <= 0.02 mg/L • Un-ionized ammonia <=1.25 mg/L at 15 ˚C • Effluent Discharge Objectives • Based on the result of Environmental Risk Assessments (ERA’s) • Site specific – assimilative capacity of the receiver

  46. Expected WWTF Regulatory Requirements • Halifax Harbour Solutions plants will require upgrade to secondary treatment to comply with expected Environment Canada WSER • Three community WWTFs will require upgrade to comply with expected Environment Canada WSER chlorine residual requirements • One WWTF (Eastern Passage) is being designed to comply with expected Environment Canada WSER (currently under expansion/upgrade)

  47. Future WWTF Requirements • Discharge to limited receiving streams or lakes • Increased requirements for advanced nutrient removal nitrogen and phosphorus • Requirements for emerging pollutants • e.g. personal care products, pharmaceuticals and endocrine disruptors www.halifaxwater.ca

  48. Expected CSO/SSO Requirements • Environment Canada - Wastewater Systems Effluent Regulations (WSER - 2011) • Monitoring and Reporting (5 years) • Duration of overflow • Volume • No of days in month • Annual report • Development of CSO Management Plan www.halifaxwater.ca

  49. Future CSO/SSO Requirements • CSO • No increase in CSO frequency related to development or re-development unless it occurs as part of an approved CSO management plan • No CSO discharge during dry weather, except during spring thaw and emergencies • Floatable material will be removed, where feasible • SSO • SSO frequencies should not increase due to development or re-development • SSOs should not occur during dry weather, except during spring thaw and emergencies www.halifaxwater.ca

  50. IRP WWTF Assumptions • A number of existing WWTFs are a current compliance priority • Harbour Solutions WWTFs will require upgrade to meet expected Environment Canada WSER requirements • A number of other WWTFs will require upgrade to meet WSER requirements • The WWTFs discharging to sensitive receiving streams and lakes will likely require significant upgrades beyond current effluent limits or WSER requirements over the planning period of the IRP (could require very costly treatment system upgrades to serve small customer base) www.halifaxwater.ca

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