amberley
AMBERLEY WATER SUPPLY STRATEGY Lead Designer – Stuart Sandy, AECOM Presented by – Bryn Larsen, AECOM
MARCH 26, 2014
AMBERLEY WATER STRATEGY
PROJECT OVERVIEW
PROJECT DRIVERS
- Already close to restrictions being imposed at peak times - Population growth and development - Decline in water quality with regard to Iron content - Over-reliance on the single source currently owned by Amberley – lack of supply resilience
AMBERLEY WATER STRATEGY
April 7, 2014
Page 3
WATER SOURCES RACECOURSE ROAD SOURCE
1956 – Reticulation network and Domain source established
AMBERLEY RESERVOIR
1966 – State Highway 1 source established
AMBERLEY TOWNSHIP
AMBERLEY DOMAIN SOURCE (ABANDONED) AMBERLEY BEACH
KOWAI RIVER ROAD SOURCE
STATE HIGHWAY 1 SOURCE
1972 – SH1 becomes primary source for Amberley
2009 - Domain source abandoned due to deepening of Kowai River bed
LEITHFIELD
Other current & potential sources
MAYS WELL SOURCE
LEITHFIELD BEACH SOURCE
Presentation Title
4/7/2014
Page 4
FORECAST WATER DEMAND (AMBERLEY)
AMBERLEY WATER STRATEGY
April 7, 2014
Page 5
WATER AVAILABLE
AMBERLEY WATER STRATEGY
April 7, 2014
Page 6
AMBERLEY WATER STRATEGY
PROPOSED OPTIONS
OPTION 1
BACKUP SUPPLY FROM RACECOURSE ROAD SOURCE MAX. 5.5 L/S
AMBERLEY RESERVOIR CLUSTER
CAPACITY 720 M 3
Do Nothing AMBERLEY TOWNSHIP DEMAND
Approximate cost of network investment - $0
-
Ongoing operation and maintenance costs
-
Lack of investment in the network will result in a failure to meet present and future needs as a statutory authority
17.8 L/S
EXISTING 150mm PVC RETICULATION AMBERLEY BEACH DEMAND 2.4 L/S
KOWAI RIVER ROAD SOURCE CURRENT 5.3 L/S CONSENT 15 L/S
NORTHERN ASHLEY RURAL WATER
STATE HIGHWAY 1 SOURCE CURRENT 13.8 L/S CONSENT 20 L/S LEITHFIELD TOWNSHIP
MAYS WELL SOURCE
LEITHFIELD BEACH DEMAND
4.5 L/S
April 7, 2014
Page 8
LEITHFIELD BEACH SOURCE CURRENT 9 L/S CONSENT 30 L/S
OPTION 2
AMBERLEY RESERVOIR CLUSTER
CAPACITY 720 M 3
Supply from Leithfield Beach, SH1 and Kowai including storage
-
3600m of new 200mm water main
-
Water mixing facility
-
New pumps at Leithfield Beach and upgrade at Kowai
-
New 5000m3 reservoir on Domain site
-
Purchase of the Kowai bore and 150mm PVC reticulation
AMBERLEY TOWNSHIP DEMAND
17.8 L/S M3
NEW 5000 RESERVOIR ON DOMAIN SITE
Approximate cost $3.57M + Kowai assets
EXISTING 150mm PVC RETICULATION AMBERLEY BEACH DEMAND 2.4 L/S
NEW WATER MIXING FACILITY & PUMPING STATION AT KOWAI RIVER ROAD
KOWAI RIVER ROAD SOURCE PROPOSED 5.3 L/S
NORTHERN ASHLEY RURAL WATER
STATE HIGHWAY 1 SOURCE PROPOSED 13.8 L/S LEITHFIELD TOWNSHIP
MAYS WELL SOURCE
LEITHFIELD BEACH DEMAND
4.5 L/S
4/7/2014
Page 9
LEITHFIELD BEACH SOURCE PROPOSED 21 L/S CONSENT 30 L/S
OPTION 3
BACKUP SUPPLY FROM RACECOURSE ROAD SOURCE MAX. 5.5 L/S
Increased supply from SH1 and Kowai including treatment
AMBERLEY RESERVOIR CLUSTER CAPACITY 720 M 3
-
600m of new 150mm water main at Kowai River Road
-
Purchase of the Kowai bore and 150mm PVC reticulation
-
New treatment facility at Kowai River
-
Pump upgrade at Kowai River
AMBERLEY TOWNSHIP DEMAND
17.8 L/S
Approximate cost $800k + cost of Kowai assets
EXISTING 150mm PVC RETICULATION AMBERLEY BEACH DEMAND 2.4 L/S
NEW TREATMENT FACILITY & PUMPING STATION AT KOWAI RIVER ROAD
KOWAI RIVER ROAD SOURCE CURRENT 5.3 L/S PROPOSED 15 L/S
NORTHERN ASHLEY RURAL WATER
STATE HIGHWAY 1 SOURCE CURRENT 13.8 L/S PROPOSED 20 L/S
LEITHFIELD TOWNSHIP
LEITHFIELD BEACH SOURCE MAYS WELL SOURCE
4/7/2014
CURRENT 9 L/S CONSENT 30 L/S
Page 10
AMBERLEY RESERVOIR CLUSTER
BACKUP SUPPLY FROM RACECOURSE ROAD SOURCE MAX. 5.5 L/S
OPTION 4 Increased supply from SH1 and Kowai including treatment – Leithfield Beach supply for Ashley
-
New treatment facility at Kowai River Road
-
New 200mm main from Kowai site to new connection on SH1 150mm main.
-
New 2000m x 200mm from Leithfield Beach to Leithfield Township
-
New 800m x 150mm Old Main North Rd
-
New 500m x 150mm Mays Rd
CAPACITY 720 M 3
AMBERLEY TOWNSHIP DEMAND
17.8 L/S
EXISTING 150mm PVC RETICULATION AMBERLEY BEACH DEMAND 2.4 L/S
Approximate cost $1.2M
NEW TREATMENT FACILITY & PUMPING STATION AT KOWAI RIVER ROAD
KOWAI RIVER ROAD SOURCE CURRENT 5.3 L/S PROPOSED 15 L/S
NORTHERN ASHLEY RURAL WATER
STATE HIGHWAY 1 SOURCE CURRENT 13.8 L/S PROPOSED 20 L/S
LEITHFIELD TOWNSHIP
LEITHFIELD BEACH SOURCE MAYS WELL SOURCE
CURRENT 9 L/S PROPOSED 24 L/S CONSENT 30 L/S
NEW 200mm WATER MAIN PROVIDING 15 L/S TO ASHLEY WATER SCHEME
SOURCE
4/7/2014
Page 11
CONCLUSIONS
OPTION 4 GIVES
• SECURITY OF SUPPLY/ NETWORK RESILIENCE • INCREASE IN WATER QUALITY
• CAPACITY FOR GROWTH • BENEFITS BOTH ARWS AND AMBERLEY NETWORKS
Presentation Title
4/7/2014
Page 12
Risks Operational Lack of above ground storage. Political Ongoing negotiation between Amberley and Ashley water systems could prevent any of the options proceeding (i.e. risk of doing nothing)
Presentation Title
4/7/2014
Page 13
Lessons learned
- Best engineering solution not always best for situation - Water schemes managed by committees - Differences in system and operation - UK predominately fed by gravity systems
- Question Is a committee led water scheme the best form of management, and if so how could this be improved?
Presentation Title
4/7/2014
Page 14
Thank You
QUESTIONS ?
[email protected]
MARCH 26, 2014
AMBERLEY WATER STRATEGY
PROJECT OVERVIEW
PROJECT DRIVERS
- Already close to restrictions being imposed at peak times - Population growth and development - Decline in water quality with regard to Iron content - Over-reliance on the single source currently owned by Amberley – lack of supply resilience
AMBERLEY WATER STRATEGY
April 7, 2014
Page 3
WATER SOURCES RACECOURSE ROAD SOURCE
1956 – Reticulation network and Domain source established
AMBERLEY RESERVOIR
1966 – State Highway 1 source established
AMBERLEY TOWNSHIP
AMBERLEY DOMAIN SOURCE (ABANDONED) AMBERLEY BEACH
KOWAI RIVER ROAD SOURCE
STATE HIGHWAY 1 SOURCE
1972 – SH1 becomes primary source for Amberley
2009 - Domain source abandoned due to deepening of Kowai River bed
LEITHFIELD
Other current & potential sources
MAYS WELL SOURCE
LEITHFIELD BEACH SOURCE
Presentation Title
4/7/2014
Page 4
FORECAST WATER DEMAND (AMBERLEY)
AMBERLEY WATER STRATEGY
April 7, 2014
Page 5
WATER AVAILABLE
AMBERLEY WATER STRATEGY
April 7, 2014
Page 6
AMBERLEY WATER STRATEGY
PROPOSED OPTIONS
OPTION 1
BACKUP SUPPLY FROM RACECOURSE ROAD SOURCE MAX. 5.5 L/S
AMBERLEY RESERVOIR CLUSTER
CAPACITY 720 M 3
Do Nothing AMBERLEY TOWNSHIP DEMAND
Approximate cost of network investment - $0
-
Ongoing operation and maintenance costs
-
Lack of investment in the network will result in a failure to meet present and future needs as a statutory authority
17.8 L/S
EXISTING 150mm PVC RETICULATION AMBERLEY BEACH DEMAND 2.4 L/S
KOWAI RIVER ROAD SOURCE CURRENT 5.3 L/S CONSENT 15 L/S
NORTHERN ASHLEY RURAL WATER
STATE HIGHWAY 1 SOURCE CURRENT 13.8 L/S CONSENT 20 L/S LEITHFIELD TOWNSHIP
MAYS WELL SOURCE
LEITHFIELD BEACH DEMAND
4.5 L/S
April 7, 2014
Page 8
LEITHFIELD BEACH SOURCE CURRENT 9 L/S CONSENT 30 L/S
OPTION 2
AMBERLEY RESERVOIR CLUSTER
CAPACITY 720 M 3
Supply from Leithfield Beach, SH1 and Kowai including storage
-
3600m of new 200mm water main
-
Water mixing facility
-
New pumps at Leithfield Beach and upgrade at Kowai
-
New 5000m3 reservoir on Domain site
-
Purchase of the Kowai bore and 150mm PVC reticulation
AMBERLEY TOWNSHIP DEMAND
17.8 L/S M3
NEW 5000 RESERVOIR ON DOMAIN SITE
Approximate cost $3.57M + Kowai assets
EXISTING 150mm PVC RETICULATION AMBERLEY BEACH DEMAND 2.4 L/S
NEW WATER MIXING FACILITY & PUMPING STATION AT KOWAI RIVER ROAD
KOWAI RIVER ROAD SOURCE PROPOSED 5.3 L/S
NORTHERN ASHLEY RURAL WATER
STATE HIGHWAY 1 SOURCE PROPOSED 13.8 L/S LEITHFIELD TOWNSHIP
MAYS WELL SOURCE
LEITHFIELD BEACH DEMAND
4.5 L/S
4/7/2014
Page 9
LEITHFIELD BEACH SOURCE PROPOSED 21 L/S CONSENT 30 L/S
OPTION 3
BACKUP SUPPLY FROM RACECOURSE ROAD SOURCE MAX. 5.5 L/S
Increased supply from SH1 and Kowai including treatment
AMBERLEY RESERVOIR CLUSTER CAPACITY 720 M 3
-
600m of new 150mm water main at Kowai River Road
-
Purchase of the Kowai bore and 150mm PVC reticulation
-
New treatment facility at Kowai River
-
Pump upgrade at Kowai River
AMBERLEY TOWNSHIP DEMAND
17.8 L/S
Approximate cost $800k + cost of Kowai assets
EXISTING 150mm PVC RETICULATION AMBERLEY BEACH DEMAND 2.4 L/S
NEW TREATMENT FACILITY & PUMPING STATION AT KOWAI RIVER ROAD
KOWAI RIVER ROAD SOURCE CURRENT 5.3 L/S PROPOSED 15 L/S
NORTHERN ASHLEY RURAL WATER
STATE HIGHWAY 1 SOURCE CURRENT 13.8 L/S PROPOSED 20 L/S
LEITHFIELD TOWNSHIP
LEITHFIELD BEACH SOURCE MAYS WELL SOURCE
4/7/2014
CURRENT 9 L/S CONSENT 30 L/S
Page 10
AMBERLEY RESERVOIR CLUSTER
BACKUP SUPPLY FROM RACECOURSE ROAD SOURCE MAX. 5.5 L/S
OPTION 4 Increased supply from SH1 and Kowai including treatment – Leithfield Beach supply for Ashley
-
New treatment facility at Kowai River Road
-
New 200mm main from Kowai site to new connection on SH1 150mm main.
-
New 2000m x 200mm from Leithfield Beach to Leithfield Township
-
New 800m x 150mm Old Main North Rd
-
New 500m x 150mm Mays Rd
CAPACITY 720 M 3
AMBERLEY TOWNSHIP DEMAND
17.8 L/S
EXISTING 150mm PVC RETICULATION AMBERLEY BEACH DEMAND 2.4 L/S
Approximate cost $1.2M
NEW TREATMENT FACILITY & PUMPING STATION AT KOWAI RIVER ROAD
KOWAI RIVER ROAD SOURCE CURRENT 5.3 L/S PROPOSED 15 L/S
NORTHERN ASHLEY RURAL WATER
STATE HIGHWAY 1 SOURCE CURRENT 13.8 L/S PROPOSED 20 L/S
LEITHFIELD TOWNSHIP
LEITHFIELD BEACH SOURCE MAYS WELL SOURCE
CURRENT 9 L/S PROPOSED 24 L/S CONSENT 30 L/S
NEW 200mm WATER MAIN PROVIDING 15 L/S TO ASHLEY WATER SCHEME
SOURCE
4/7/2014
Page 11
CONCLUSIONS
OPTION 4 GIVES
• SECURITY OF SUPPLY/ NETWORK RESILIENCE • INCREASE IN WATER QUALITY
• CAPACITY FOR GROWTH • BENEFITS BOTH ARWS AND AMBERLEY NETWORKS
Presentation Title
4/7/2014
Page 12
Risks Operational Lack of above ground storage. Political Ongoing negotiation between Amberley and Ashley water systems could prevent any of the options proceeding (i.e. risk of doing nothing)
Presentation Title
4/7/2014
Page 13
Lessons learned
- Best engineering solution not always best for situation - Water schemes managed by committees - Differences in system and operation - UK predominately fed by gravity systems
- Question Is a committee led water scheme the best form of management, and if so how could this be improved?
Presentation Title
4/7/2014
Page 14
Thank You
QUESTIONS ?
[email protected]
