CoCrkl Sictrkate tgoic Wedatietr SMtudayster title style CoCrkl Sictrkate tgoic Wedatietr SMtudays-teCron teixttle style Water Services Bill 2003 Cork St rat egic Wat er St udy • Section 36 (2) – “each water services authority shall, not later than such date as may be prescribed, make a water services strategic plan with regard to the provision of services in it functional area and submit it to the Minister for approval”. Present at ion t o Engineers Ireland (Cork Region) 17 t h J anuary 2006 1 2 Grellan Mc Gra t h CoCrkl Sictrkate tgoic Wedatietr SMtudayster title style CoCrkl Sictrkate tgoic Wedatietr SMtudayster title style 1. Strategy Objectives and Scope 2. Baseline Demand 3. Water Conservation & Demand Management 4. Future Demand Projections St rat egy Objec t ives and Sc ope 5. Source Assessment 6. Strategic Models 7. General Levels of Service and Performance Indicators 8. Regional Water Supply Recommendations 3 4 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teSurm tmitalrye style CoCrkl Sictrkate tgoic Wedatietr SMtudays-teStru dtyi tAlrea style Objective Blueprint for the development of the water supply infrastructure in the Greater Cork area over the next 25 years. Background Planning - Cork Area Strategic Plan (CASP) 2001 - National Spatial Strategy - County & City Development Plans Legislative - 2000 Drinking Water Regulations - Water Framework Directive 2 LA’s 5 Admin Areas 370,000 Pop. 5 6 1 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teMra jotri Stlcehe msteys le CoCrkl Sictrkate tgoic Wedatietr SMtudays-teKery tRietqleuir esmtyenltse • Robust Supply / Demand Model for 2003, 2013, 2028 • Demand Management Plan (Water Conservation Programme) • Asset Management Plan (Monitoring & Rehabilitation) • System Capacity & Upgrading Needs (Capital Programme) • Operational Management Plan (Standards and Levels of Service) Pop. Public Supplies 287,000 Pop. • Economic Implications (Capex, Opex & Implementation Plan) Group Schemes 23,000 Public Supplies 287,000 Private/None 60,000 Group Schemes 23,000 Private/None 60,0007 8 CoCrkl Sictrkate tgoic Wedatietr SMtudayster title style CoCrkl Sictrkate tgoic Wedatietr SMtudays-tWera tetri tBlaela nscteyle Billed Metered Consumption (including exports) (Metered non domestic Use) Billled Revenue Authorised Water Consumption Billed Unmetered Consumption (Current fixed charge non-domestic use) Authorised Consumption (AFW) Unbillled Unmetered Consumption (Domestic & Operational Use) Unbilled Authorised Consumption Unbillled Metered Consumptiion (Metered domestic, local authority buiildings) Baseline Dem and Unauthorised Consumption Apparent (Illegal connections/ hydrant use) Losses System Customer Metering IInaccuracies Input Volume Raw Water Maiin Leakage Non Revenue WTW Leakage Water Water Losses Trunk Maiins Leakage (UFW) Storage Reservoir Leakage Real Losses Diistribution Mains and Fittings Distribution System Leakage Service Maiins and Fittings (Communication Pipe, Customer Supplly 9 Pipe, Plumbiing) 10 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teDerm taintdl eD astat ySoluerces CoCrkl Sictrkate tgoic Wedatietr SMtudays-teScrh etmitel eSu sb-tDyivliseion Monkstown Reservoir Mt. Emla Lower M Raffeen • Geo-Directory Reservoir M North Monkstown – Residential Properties Rural Innishannon WTW M Ballinrea Reservoir – Commercial Properties Innishannon - Ballinrea M Innishannon/West of town M M Carrigaline town • Council Meter Billing Records for consumers using > 1,000 m3/year Dunderrow M M Eli Lily • CSO Livestock Census – 2000 NETWORK STRUCTURE FOR Kinsale INNISHANNON WATER West OPERATIONAL AREA Rural Camphill Reservoir Ardbrack WTW • 2000 National Water Study M High Service reservoir The Rock Reservoir Ardbrack Reservoir • 2002 Census M M M Bulk Meter Reservoir Supply Kinsale Ardbrack Area town Low Area Demand Area 11 12 2 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teInrni sthiatnlneo ns WtySlSe CoCrkl Sictrkate tgoic Wedatietr SMtudays-teLarr gtei Mtleete rsetdyle 13 14 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teMred tiuimtl Mee stetreydle CoCrkl Sictrkate tgoic Wedatietr SMtudays-teGero t-Ditirleect osrytyle 15 16 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teExra mtiptlel eC asrrtigyalliene CoCrkl Sictrkate tgoic Wedatietr SMtudays-teDorm teisttlice D semtyanlde Domestic Demand = For Carrigaline Town No Households x Occupancy Rate x Per Capita Consumption Number of Households = 2,676 Number of Commercial Properties (From GD) = 239 Occupancy Rate from 2002 Census & Household Count from Number of Large Metered Consumers = 8 Geo-directory. Number of Small Consumers = 231 PCC taken from 2000 National Water Study :- Number of Connections (Buildings from GD) = 2,750 County - 138 l/property/day City - 141.7 l/property/day 17 18 3 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teNorn -tDitolmee sstict yDleemand CoCrkl Sictrkate tgoic Wedatietr SMtudays-tePrrim tairtyl Sec hsetmyel Deemand • Commercial/Industrial • Population 299,650 - Large (>10Ml/yr) Average consumption based on meter readings • Properties 126,800 - Medium (1Ml/yr< & < 10ml/yr) • Domestic 43.74 Ml/d - Small (< 1 Ml/year) = No of Consumers x Base Demand of 580l/con/day • Non – Domestic 58.48 Ml/d • Agricultural (unmetered allowance) • Accounted for Water (AFW) 103.5 Ml/d - Livestock numbers x base water usage l/head/day Assumption • Estimated Unaccounted for Water (UFW) 65.2 Ml/d Dairy Cows 150 Metered Calves <1yr 20 % UFW 38% Other Cattle 36.5 Unmetered Sheep 4 % UFW excluding large metered consumers 48% 19 20 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teDerm taintdl eC osmtpyonlents CoCrkl Sictrkate tgoic Wedatietr SMtudayster title style Operational, 1.32Ml/d, 1% Domestic, Industrial & 43.74Ml/d, 26% Commercial, 58.48Ml/d, 35% Wat er Conservat ion & Dem and Managem ent UFW, 65.20Ml/d, 38% 21 22 CoCrkl Sictrkate tgoic Wedatietr SMtudays-tWera tetri tCloen ssertvyatlioen Drivers CoCrkl Sictrkate tgoic Wedatietr SMtudays-teDerm taintdl eM asntaygelmeent 1. Economic: Water Conservation: Pressuree Management Marginal Cost Savings (Short Run – SR ELL) Management – Active Leakage Control Economic Level of Real Losses Deferred Capital Savings (Long Run - LR ELL) (Detect & Repair) Unavoidable 2. Sustainable Development: Annual Real – Pressure Management Losses Rising Demand can be Serviced SpeAecdt aivned SpeAecdt iavned – Reduce Losses QuLaelaitkya ogfe quality Leakage Repairs 3. EU / National Policy: Control of Creopnatrirosl Potentially Recoverable Real ‘Polluter Pays’ Objective – Asset Management Losses 4. Asset Conditions: (Planned Rehabilitation) Pipeline and PipeA Mssaettesr ials Increasing Age Impacts on Leakage Demand Management: MMaannaaggeement: Current Annual Real Losses :s Seeleleccttiioonn,, iInstallatiion,, 5. Environmental: mMaaiinttenance, – Tariff Control , rReenneewwaal,l, Rreeppllaacceement Permits Reduced Abstractions – Awareness & Promotion WRP001/ 2001 6. Climate Change: of Water Saving Ability to cope with Droughts – Demand Reduction 23 24 4 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teInrte rtniattiloen asl Btyenlcekmarking CoCrkl Sictrkate tgoic Wedatietr SMtudays-teLera ktaigtel eT asrgteyt Sletting Leakage Comparisons with UK, Scotland, USA and Australia Targets Based on Economic 60 UK Water Only Cork Primary Scheme Leakage Principles UK Water and Sewerage Companies 50 Cork City 300 Cork County Primary Schemes USA Water Companies The Economic Level of Leakage is the Australia Water Companies 250 ) 40 level at which: y Scottish Water a d / All Primary Schemes Value of water lost m 200 ALC Detection k / 3 ) Total Costs 0 0 m 30 ( 0 ' The PV cost of leakage control ( e V g 150 P a Scottish Water N k Cork Study o a + r u e E L 20 The PV cost of the water lost 100 10 50 is a Minimum BLL ELELL 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 0 Target Leakage (m3/km/d) 0.00 10.00 20.00 30.00 40.00 50.00 60.00 70.00 80.00 90.00 L/N (Length between Connections) 25 26 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teEcro ntoimtliec L sevteyl loef Leakage CoCrkl Sictrkate tgoic Wedatietr SMtudays-teELrL tCiotnlnea sRtWySlSe Balance between cost of leak detection and repair and variable cost of production Conna Regional WSS SRELL Inputs to ELL Model - Conna Regional WSS 400 Parameter Value Remark 350 Average Zone Night Pressure 34.6 m. Given 300 Length of mains 28,000 m. Given Value of water lost ) 0 0 250 ALC Detection Number of connections 660 nr. Given 0 ' ( Total Costs V 200 L/N 42.42 Calculated P N o BLL % mains poor 62 assumed r ELL u 150 E Potential Savings % mains average 38 assumed 100 % mains good 0 assumed 3 ¢ £ ¤ ¥ ¦ §©¨ ¡ 621 m /day ! 50 ¡ ¥ § # $ ! Average Cost of detection Varies (increases as UFW reduces) " 0 ¡ ¦ £ § Average cost of repair 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 § ¥ § £ ¡ Power & Chemicals Marginal operational Cost 3 Target Leakage (m 3/km/d) 27 28 CoCrkl Sictrkate tgoic Wedatietr SMtudays-teScrh etmitel eLe asktaygel eTargets CoCrkl Sictrkate tgoic Wedatietr SMtudays-teAdrm tini tAlreea s Ttayrgleets L/N Prelim. (N, no. 2003 UFW Study Target SRELL Mains Admin Area Mains L/N 2003 UFW Study Target Study Target properties) Length, L Length, L (N, no. Saving Water Operational Area km Ml/d l/prop/d m3/km/d Ml/d l/prop/d m3/km/d l/prop/d km properties) Mallow WSS 62 16.0 1.63 421 26.5 1.08 280 17.5 136 Ml/d l/prop/d m3/km/d Ml/d Ml/day Conna Regional 28 42.3 0.60 947 21.3 0.26 416 9.4 356 Bandon WSS 58 19.0 1.50 491 25.9 0.86 280 14.8 190 Youghal WSS 38 12.3 1.36 443 36.1 0.86 280 22.8 184 County 1923 27.3 33.90 482 17.6 18.97 14.93 Midleton WSS 24 10.1 1.64 691 103.8