WSNTG Annual Conference 8th September 2005

WSNTG 9WSNTG 9thth Annual Annual ConferenceConference

“Water Services Strategic Plans –

Fact or Fiction”

WSNTG Annual Conference 8th September 2005

Water Conservation / Mains Rehabilitation / Strategic Plans in a rural context

Ian PatersonTechnical DirectorCarl Bro / Ryan Hanley

Mapping and GIS

Caretakers As Built records Up date procedures necessary MapInfo, MapNet, CIS, AutoCad

Customer Data

Domestic - Geo Directory Commercial - NDU Surveys, Geo

Directory Site Surveys Large users / Exports measured

Record Keeping

Burst Data Complaint Data Leaks on new estates Private Leaks

• Domestic• Commercial

Metering

Source, Treatment works, reservoir outlets, pumping stations, district meter areas and customers

Electromagnetic, or if existing site appropriate replace mechanical mechanism

Appropriate meters for major customers

Water Audits

Meter data Customer data Flow balances - DMA, Source, Region Unaccounted for water / leakage Customer metering will have significant

effect Supply / Demand Balances Future Demands

Leakage Reduction

Trained Staff Equipment the team wish to use Realistic Targets Review and update targets Urban areas different to rural areas Will need to install further fittings

Ballina Res Outflow 2005

0

20

40

60

80

100

120

Apr-05 Apr-05 May-05 Jun-05 Jun-05 Jul-05 Aug-05

Date

Flow

(l/s

)

Ballina Reservoir Outlet Flow

0

10

20

30

40

50

60

70

80

90

00

:00

:00

00

:45

:00

01

:30

:00

02

:15

:00

03

:00

:00

03

:45

:00

04

:30

:00

05

:15

:00

06

:00

:00

06

:45

:00

07

:30

:00

08

:15

:00

09

:00

:00

09

:45

:00

10

:30

:00

11

:15

:00

12

:00

:00

12

:45

:00

13

:30

:00

14

:15

:00

15

:00

:00

15

:45

:00

16

:30

:00

17

:15

:00

18

:00

:00

18

:45

:00

19

:30

:00

20

:15

:00

21

:00

:00

21

:45

:00

22

:30

:00

23

:15

:00

Time

Lit

res

Pe

r S

ec

on

d

Monday 25/10/04 - Total Flow 5876.94m3Monday 02/05/05 - Total Flow 5456.65m3 (Savings 420.29m3/Day)Monday 30/05/05 - Total Flow 5122.26m3 (Savings 754.68m3/Day)Monday 06/06/05 - Total Flow 4844.28m3 (Savings 1032.66m3/Day)Monday 04/07/05 - Total Flow 5031.38m3 (Savings 845.56m3/Day)Monday 25/07/05 - Total Flow 4765.00m3 (Savings 1111.94m3/Day)

Hydraulic Modelling

Fully detailed models Validated against field recorded

data Identifies

Anomalies Low / high pressure mains with poor hydraulic

performance

MyshallReservoir

CRWSSWTW

CrowsgroveReservoir

BallonReservoir

TullowWTW

TullowReservoir

NRWSS - TullowControl Valve

CarlowReservoir

NRWSS WTW MoatReservoir

ClonegalReservoir

RichardstownExport

Minimum Pressure Bands

5040302015

Procedures

Critical to establish Procedures for staff to follow

MappingUpdating Customer dataBurst/leak recordingMonthly water auditing

Team Development for sustainability

Establishment of County team to undertake management of the water supply and distribution system

Training Procedures Motivated staff Significant benefits are achieved and

cost of operation reduced

Countywide Telemetry

Remote monitoring of Facilities Re deployment of staff to other duties Management reporting direct from system Maintenance schedules automatically

produced for action Covers both water and Sewerage Can tie into site SCADA systems Alarms forwarded to appropriate staff

Rehabilitation Needs Assessment

System mapping Hydraulic models Structural data

Pipe samples Burst records

Caretaker data Scoring system to highlight priority

Above Ground Assets

Database of all sites and Facilities Maintenance schedules for all

equipment and replacement policy Develop costed plans for upgrades

and maintenance Review global County position

Luimnagh Water Treatment Plant

Knockacarrigeen Reservoir

County Strategic Plan

Supply / Demand Balance - now/future Asset condition Transfers between schemes Maintenance Needs

• Pipelines• Treatment Plants

Proposed Capital Schemes A Global policy for Capital and

Maintenance of the Water Supply Infrastructure

Benefits

Reduced leakage / operating cost Actual understanding of system

performance Reduced overtime payments Improved supply to customers Active management of the network Ability to demonstrate need for

capital investment based on facts

WSNTG Annual Conference 8th September 2005

WSNTG 9WSNTG 9thth Annual Annual ConferenceConference

“Water Services Strategic Plans –

Fact or Fiction”