the south east queensland drought experience lessons for canadian demand management practitioners...
TRANSCRIPT
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The South East Queensland Drought Experience
Lessons for Canadian Demand Management Practitioners
Kirk StinchcombeManager, Operational Policy and Planning
Water Stewardship Division
Ministry of Environment
Province of British Columbia
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My Story
• Joint Canadian/Australian citizen• Positions in Australia since 2003
– Demand Management Coordinator, Gold Coast Water
– Advisor, Gold Coast Waterfuture Project– Project Manager, SEQ Integrated Urban
Water Management Investigation– Project Director, SEQ Home Waterwise
Service– Project Director, SEQ Pressure and Leakage
Management Project– Advisor, SEQ One-to-One Water Saving
Program
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Presentation Outline
• The South East Queensland Drought• Four Innovative Drought Response Projects
– The Home Waterwise Service– The SEQ Pressure and Leakage Management
Project– The One-to-One High Water User Program– The Gold Coast Waterfuture Project
• Lessons for Canadian Demand Management Practitioners
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4000 km
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1000 km1000 km
BrisbaneBrisbane
Brisbane
Noosa
Gold Coast
Toowoomba
Mixed urban & rural landuseLow topographic relief
~ 50% of Queensland popn
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Comprising 12 Local Government Authorities
~ 25000 km2 catchment 1600 km2 embayment (Moreton Bay)
2.7 Million people – The fastest population growth in Australia
Average annual rainfall ~1000mm
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NRW QLD 2007
Federation drought breaksMillenniumdrought continues
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Wivenhoe Dam (circa 2000)
100% capacity
Full Supply = 1,165,000 ML or 1,165,000 million Liters
Capilano + Seymour = 64,000 million Liters
Spillway
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SpillwaySpillway
Wivenhoe Dam (April 2007) 18% capacity
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3 Advanced Water Treatment Plants
1 Desalination Plant
Several Bulk Pipelines& 2 New Storages
Total asset investment of $9 bill
Groundwater Sources
The “Supply”
Side
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The Demand Side
Restrictions: Outdoor Watering Ban
Communications CampaignBusiness Savings Program
Home Rebate SchemeHome Retrofit Program
Pressure and Leakage Management
Heavy Water User Program
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The Challenge: Retrofit 200,000 homes with water efficient devices in 2 years
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• A comprehensive water audit (with CBSM toolkit)
• 1 new water saving showerhead • Water efficient aerators on
bathroom and kitchen taps • Up to 3 leaking taps fixed• All materials supplied and installed• $150 in value for $20
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• 135 plumbers involved at program peak
• 3000 retrofits per week
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• Full time call centre with 50 staff
• Comprehensive marketing campaign: print, radio, TV, web…
• 95% customer satisfaction KPI
• CBSM design (including the market research!)
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• 228,551 homes by Dec 08
• 4800 ML savings per year (13 ML per day)
• $42.1 million investment
The Outcome
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The Challenge: Save 60 million litres of water per day through pressure and leakage management across the SEQ region
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Sectoring the network into District Metering Areas
(DMAs)
LOCHLARNEY STREET
BU
LLE
R C
OU
RT
ROAD
KE
YS
TO
NE
ST
RE
ET
PRODUCTION S
TREET
SU
NN
YV
IEW
ST
RE
ET
SU
NR
ISE
ST
RE
ET
SP
AN
NS
RO
AD
COORAN STREET
CR
ES
T S
TR
EE
T
TW
EE
DL
AN
D C
RE
SC
EN
T
OD
DIE
RO
AD
ADELAIDE CIRCUIT
MA
RO
OC
HY
CR
ES
CE
NT
CHAPMAN DRIVE
BRISBANE BEENLEIGH ROAD
OVAL STREET
HA
ZE
L P
LAC
EB
OU
ND
AR
Y S
TR
EE
T
LANE
PACIFIC HIGHW
AY
MANILA STREET
KOKODA STREET
BEENLEIGH CONNECTION ROAD
PE
AC
OC
K A
VE
NU
E
WAG
TAIL STREET
LINCOLN STREET
ZA
ND
ER
ST
RE
ET
CU
RLE
W C
RESC
ENT
SCOTT STREET
CHARLES STREET
PHEASANT AVENUE
HERSES ROAD
GEORGE STREET
EA
GL
E D
RIV
E
DISTILLERY ROAD
TOBRUK STREET
VICTORIA STREET
RIVER HILLS ROAD
LYRE STREET
PLOVER DRIVE
DOVE STREET
PIN
E A
VE
NU
ER
OB
IN S
TR
EE
T
FINCH STREET
CRETE STREET
YO
RK
ST
RE
ET
SAVERIN ROAD
EMBLEY COURT
CIT
Y R
OA
D
SAVAGES PARADE
BURRUM COURT
AL
AM
EIN
ST
RE
ET
EAGLEBY ROAD
DA
MP
IER
AV
EN
UE
BOWER ROAD
LOGAN STREET
PETUNIA COURT
McKINLEY STREET
LAIN
G S
TR
EE
T
OBAN COURT
SIRUS S
TREET
KERRY COURT
FRYAR ROAD
BE
RG
OM
I CO
UR
T
DU
BLIN
DR
IVE
HUGHES STREET
AUGUST STREET
PATHWAYGALWAY STREET
ENNIS COURT
BUTLER STREET
ROSLYN COURT
RIN
TO
DR
IVE
ST
OT
EN
ST
RE
ET
RAMU STREET
RIV
ER
VIS
TA
CO
UR
T
MONMOUTH STREET
BEETSON COURT
MELWOOD STREET
ALBERT STREET
FR
YA
RS
RO
AD
FR
EN
CH
ST
RE
ET
GIRRALONG STREET
McL
EA
N S
TR
EE
T
BALMORAL STREET
VAUTIN WAY
TH
OR
NS
IDE
ST
RE
ET
SU
NS
CA
PE
DR
IVE
WIN
DS
ON
G S
TR
EE
T
DEVRON COURT
ME
LRO
SE
PLA
CE
GA
RS
ON
ST
RE
ET
MA
NH
AT
TA
N D
RIV
E
GREENFIELD STREET
RIVER STREET
YOLLA STREET
SHIRLEY STREET
SH
AR
ON
DR
IVE
WIL
LIA
M S
TR
EE
T
TEMMA STREET
WH
AR
F S
TR
EE
T
WAGNER STREET
QUINNS HILL ROAD WEST
SCHMIDT ROAD
MAURICE COURT
FRANCOISE STREET
KEOGH ROAD
DREYER ROAD
CA
NE
FA
RM
RO
AD
YE
LLO
WO
OD
RO
AD
RIVER ROAD
MARSHALL ROAD
JOHNSTONE ROAD
MARLOWE ROAD
CLOSED ROAD
OFF RAMPON
RAM
P
LOCHLARNEY STREET
BU
LLE
R C
OU
RT
ROAD
KE
YS
TO
NE
ST
RE
ET
PRODUCTION S
TREET
SU
NN
YV
IEW
ST
RE
ET
SU
NR
ISE
ST
RE
ET
SP
AN
NS
RO
AD
COORAN STREET
CR
ES
T S
TR
EE
T
TW
EE
DL
AN
D C
RE
SC
EN
T
OD
DIE
RO
AD
ADELAIDE CIRCUIT
MA
RO
OC
HY
CR
ES
CE
NT
CHAPMAN DRIVE
BRISBANE BEENLEIGH ROAD
OVAL STREET
HA
ZE
L P
LAC
EB
OU
ND
AR
Y S
TR
EE
T
LANE
PACIFIC HIGHW
AY
MANILA STREET
KOKODA STREET
BEENLEIGH CONNECTION ROAD
PE
AC
OC
K A
VE
NU
E
WAG
TAIL STREET
LINCOLN STREET
ZA
ND
ER
ST
RE
ET
CU
RLE
W C
RESC
ENT
SCOTT STREET
CHARLES STREET
PHEASANT AVENUE
HERSES ROAD
GEORGE STREET
EA
GL
E D
RIV
E
DISTILLERY ROAD
TOBRUK STREET
VICTORIA STREET
RIVER HILLS ROAD
LYRE STREET
PLOVER DRIVE
DOVE STREET
PIN
E A
VE
NU
ER
OB
IN S
TR
EE
T
FINCH STREET
CRETE STREET
YO
RK
ST
RE
ET
SAVERIN ROAD
EMBLEY COURT
CIT
Y R
OA
D
SAVAGES PARADE
BURRUM COURT
AL
AM
EIN
ST
RE
ET
EAGLEBY ROAD
DA
MP
IER
AV
EN
UE
BOWER ROAD
LOGAN STREET
PETUNIA COURT
McKINLEY STREET
LAIN
G S
TR
EE
T
OBAN COURT
SIRUS S
TREET
KERRY COURT
FRYAR ROAD
BE
RG
OM
I CO
UR
T
DU
BLIN
DR
IVE
HUGHES STREET
AUGUST STREET
PATHWAYGALWAY STREET
ENNIS COURT
BUTLER STREET
ROSLYN COURT
RIN
TO
DR
IVE
ST
OT
EN
ST
RE
ET
RAMU STREET
RIV
ER
VIS
TA
CO
UR
T
MONMOUTH STREET
BEETSON COURT
MELWOOD STREET
ALBERT STREET
FR
YA
RS
RO
AD
FR
EN
CH
ST
RE
ET
GIRRALONG STREET
McL
EA
N S
TR
EE
T
BALMORAL STREET
VAUTIN WAY
TH
OR
NS
IDE
ST
RE
ET
SU
NS
CA
PE
DR
IVE
WIN
DS
ON
G S
TR
EE
T
DEVRON COURT
ME
LRO
SE
PLA
CE
GA
RS
ON
ST
RE
ET
MA
NH
AT
TA
N D
RIV
E
GREENFIELD STREET
RIVER STREET
YOLLA STREET
SHIRLEY STREET
SH
AR
ON
DR
IVE
WIL
LIA
M S
TR
EE
T
TEMMA STREET
WH
AR
F S
TR
EE
T
WAGNER STREET
QUINNS HILL ROAD WEST
SCHMIDT ROAD
MAURICE COURT
FRANCOISE STREET
KEOGH ROAD
DREYER ROAD
CA
NE
FA
RM
RO
AD
YE
LLO
WO
OD
RO
AD
RIVER ROAD
MARSHALL ROAD
JOHNSTONE ROAD
MARLOWE ROAD
CLOSED ROAD
OFF RAMPON
RAM
P
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Pressure Reducing Valve (PRV) Installation
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PRV
Inlet Pressure Flow Controlled Outlet Pressure
As flow increases and decreases the pressure is adjusted accordingly to
maintain adequate levels of service during the day
At night time when demand is at its minimum pressure can be reduced
considerably
Flow Modulation Control
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Active Leak Detection and Repair
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• 47.8 ML/day saved at Oct 2008• 64 ML/day savings by 2012• 16,020 ML saved since 2006• 138 DMAs complete; 322
commenced• $70 million expenditure to date• Largest project of its kind ever
The Outcome
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The Challenge: Assist 80,000 “high volume” households (15% of single family homes) using more than 800 litres/household/day to significantly curb their water consumption
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Program budget: $8 million Primary delivery mechanism: • Mandatory completion of 58
question water use survey• Customized water saving
plan sent back based on response
Radically condensed timeframe (6 months concept to completion)
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Ind
oor
Behavioural
Outd
oor
Technological
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The Outcome: • 92% compliance with survey
submission requirements• A reduction in water use by this
segment of 30.1ML/day• 70% of households were using less
than 800L/property/day post program• 45% of targeted households were
efficient (ie. at or below 140L/p/d) post program compared to 7% pre program
• On a per person basis the HWU consumption reduced by 40% compared to the general population’s
reduction of 22% for the same period. • Groundbreaking intersection of
mass customisation and CBSM
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Pimpama Coomera Waterfuture Project
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• Class A+ Recycled Water Treatment Plant (supply by 2009 to toilet & outdoor)
• Mandatory rainwater tanks (laundry cold water & outdoor)
• 3500 dual reticulated homes already built
• Growing by ~120 homes/month.
• Home to 120,000 people by 2056
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The Situation Today
• Dam levels currently at 51.14%• Restrictions relaxed slightly• Residential consumption still well below
the new 170 litres/person/day target• Supply-side measures coming on-line;
some deferred at least temporarily• Most demand-side projects scaling
back; others continue unabated• Major crisis averted… for now
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Lessons
• Our assumptions about water supply security can change very, very quickly
• When the time comes… be ready (both with data and planning)
• Steal shamelessly• Establish governance systems early • Think bigger
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