Cork County Water Conservation Programme Water Conservation in

Cork County Water Conservation Programme Water Conservation in Business Presented by Eoghan O’Brien WSIP Siobhán Mac Mahon WSIP Cork County Council Water Conservation Programme

National Water Conservation Programme What is it? - Reducing Unaccounted For Water (UFW) from 47% to 25% Cork County Council Water Conservation Programme

National Water Conservation Programme Other Objectives • • • Increase efficiency in O&M of our water schemes Increase knowledge of our networks (via GIS systems, computer modelling) and consumption patterns (via metering) Value for money by deferring capital expenditure on new water supply schemes through improved supply and reduced consumption Environmental protection by deferring new water sources Improve supply service to our consumers PR of the need for water conservation. Cork County Council Water Conservation Programme

3 Stages of Water Conservation Stage 1 - Implementation of Network Management Systems • Asset data collection • Mapping (CIS) • District metered areas (DMA), telemetry systems, pressure controls • Hydraulic modelling Cork County Council is currently in Stage 1 Stage 2 - Active Leakage Control • Location and repair of leaks • Prioritised basis (target with DMA systems) • Initial Exchequer funding, then Local Authority resources Only passive leakage detection to date. Stage 3 – Mains Rehabilitation • Follows on from Stages 1 and 2 • Identifies DMAs with persistent high leakage, poor response to repair activities and level of service problems. • Targeted investment on sections for best return Cork County Council Water Conservation Programme

Water Conservation - Government Funding Cork County Council Water Conservation Programme

Cork County Council - Scope of Service County • • 170, 000 m 3/day 4500 km main 170 Public Schemes 134, 000 Properties North Cork Area = 2500 km 2 Production = 48, 000 m 3/day UFW 2008 = 48% Mains length = 1550 km Connections = 30, 000 Public schemes = 71 East Cork • • 47, 000 m 3 /day (28%) 635 km main (14%) 23 Public Schemes 28, 000 Properties (21%) West Cork Area = 2, 200 km 2 Production = 20, 000 m 3/day UFW 2008 = 44% Mains length = 1100 km Connections = 19, 000 Public schemes = 27 Cork County Council South Cork Area = 2700 km 2 Production = 102, 000 m 3/day UFW 2008 = 43% Mains length = 1850 km Connections = 80, 000 Public schemes = 72 Water Conservation Programme

Stage 1 - DMA Design – e. g. Cobh & Midleton Cork County Council Water Conservation Programme

Leakage Map Records Cork County Council Water Conservation Programme

Leakage Database & Detection Teams Cork County Council Water Conservation Programme

CIS survey records / Hydraulic Models Cork County Council Water Conservation Programme

East Cork Public Water Supply Schemes Cork County Council Water Conservation Programme

2009 Service Indicators - Water Audit East Cork County Council Water Conservation Programme

2009 Service Indicators - Water Audit Cork County Council Water Conservation Programme

Leakage Control And Network Management Cork County Council Water Conservation Programme

Types of Leaks • • • Reservoirs, Water towers, Tanks etc. Mains – Cracks, splits, holes Services – Communication, supply Fittings – Valves, hydrants, stop taps AWWA M 36 manual (1999) – average life of an underground leak is 2 years. (depends on the leak Types and causes of leakage detection policy, pipe material, construction, etc. ) Cork County Council Water Conservation Programme

Causes of Leaks • • Increased pressure (repairs/network changes) Ground movement Break down in materials (corrosion) Poor quality materials/installation Cyclic stresses (PRV/Pumps) Valve operations (surges/water hammer) Traffic Age of mains and services Cork County Council Water Conservation Programme

Leak Type Statistics • • Supply side 34% Consumer side 24% Mains 25% Other 17% Cork County Council Water Conservation Programme

Reported and Unreported Leaks Cork County Council Water Conservation Programme

Active and Passive Leakage Control Cork County Council Water Conservation Programme

Active Leakage Detection – Stage 2 • • The only way forward Ongoing funding required Full-time dedicated teams Team need long-term support Resources need to be committed for the long-term Training very important Water Conservation is never ending Cork County Council Water Conservation Programme

Water Loss Management Structures • Integrated Approach is required to efficiently reduce Water Loss & Cooperation is critical Planning Policy Control & Enforcement Environment Water Quality Asset Management Water Conservation Building Control Fire Service IT Dept GIS O&M Cork County Council Finance Dept Billing & Budgets Water Conservation Programme

How do we get there? - Phased approach - Focus existing resources on core activities Up to END 2010 WSIP Operations Procure and Manage Network Re-establish Technical teams Management Systems Contracts Area offices to collect data 2010 -2012 Active Leakage Control (2 teams) DMA & Telemetry Systems Hydraulic Models & Pressure Mgt DMA Establishement Data Management Package Network Management Post 2012 Full Active Leakage Control (14 Teams) Cork County Council Water Conservation Programme

Cost Of Water • Water & Wastewater Charges Cork County Council Water Conservation Programme

Water Conservation Booklets Cork County Council Water Conservation Programme