River Operations Initiatives for Water Quality Management

Slides:



Advertisements
Similar presentations
INTRO :- FROM WHERE WE CAN OBTAIN WATER IN DESIRED QUALITY & QUANTITY FOR REQUIRED PERIOD OF TIME SOURCES OF WATER.
Advertisements

Flood Profile Modeling with Split Flows and Weirs
Roxburgh Dam Combined Discharge of Spillway and Sluice into the same Chute Peter Silvester – Civil Engineer Contact Energy Grant Webby – Principal Hydraulic.
In The Name Of GOD SEFIDRUD DAM DESILTATION OPERATION by M.H.Ranjbar Taklimy & E. Tolouie Sefidrud Reservoir desiltation committee, Gilan regional water.
1 Hurunui River Dissolved Reactive Phosphorus Concentrations and Loads A tool to manage periphyton growth ? Review of Ecan & NIWA Dataset of DRP measurements.
Land use intensification on the Canterbury Plains: What are the implications for water quality? Ken Taylor Environment Canterbury.
Reconfiguring the River The 4 th Annual Water Symposium, 20 February 2009, Darling Harbour, Sydney Prof Mike Young, Executive Director Research Chair,
John H. Kerr Dam and Reservoir John H. Kerr Dam and Reservoir U.S. Army Corps of Engineers Wilmington District.
US Army Corps of Engineers BUILDING STRONG ® Mid-West Electric Consumers Association September 16, 2014 Corps of Engineers US Army Missouri River Mainstem.
Watershed Dams in Georgia 1. –357 Total –195 High Hazard (NRCS) –NRCS constructed – owned by local sponsors –Most built between 1950s-1970s for flood.
Background Site of a former Industrial Waste Treatment Plant Contaminants accumulated in sludge drying beds and surge pond, they subsequently leaked into.
Castellanza Workshops October 2007 Hydroelectric power plant in Solina, Poland.
Sept 4, 2008CVEN 4838/5838Slide #1 Lecture 4 Spillways and Outlet Works.
Hydrological Information System Module 20 – Integrated Reservoir Monitoring System.
Stanislaus River An overview…. History and Background One of largest tributaries to San Joaquin River Development of Basin began during the Gold Rush.
T HAT DAM – OPUHA IN SOUTH CANTERBURY T URNING IRRIGATION BENEFITS INTO A WAVE OF PUBLIC OPINION Nicky Hyslop Irrigation New Zealand Conference 9 th April.
Merowe Dam: Details of Site & Engineering Design Suzanne Young February 19, 2004.
The Salton Sea By: Christine Yafuso. Background Located in Southeastern California Located in Southeastern California About 1000 km 2 in size About 1000.
Yellowtail Dam & Bighorn Lake Billings, Montana January 2011 RECLAMATION Managing Water in the West.
‘The world’s greatest plumbing system’ An example of how a river is managed to use its water as a resource.
Andrew Scanlon Environment and Sustainability Manager Hydro Tasmania Drought and Climate Change.
Freshwater Fishery Management Objective- Discuss the lake habitat to include basic fishery management techniques.
Hydroelectric Power Ariadna Perlog Class-607.
URBAN AND NATURAL ENVIRONMENT CONSULTANTS European Commission 6 th Framework Programme for research and Technological Development Optimisation For Sustainable.
Nile Hydrology Preliminary Research Anthony Makana Paris
1 Module 2 Mekong Resources, Benefits to people, and Planning Issues session 1 : The Mekong and its water resources.
Physics and Astronomy Outreach Program at the University of British Columbia Physics and Astronomy Outreach Program at the University of British Columbia.
GCSE Geography Year 10. UNIT 2 WATER, LANDFORMS & PEOPLE.
What is an aquatic ecosystem? Agenda for Tuesday Sept 20 th 1.Outside to collect water samples/data 2.Finish aquatic ecosystem presentations Learning Targets.
Renewable energy sources are becoming more and more popular worldwide. Romania has the chance to obtain energy in a non-emission manner, increase energy.
1D Steady State Hydraulic Modelling Bratton Stream Case Study.
Sediment Transport in Wadi Systems Part 1: Overview
Deksyos Tarekegn National DSS Specialist - Ethiopia
Module 2 (part 1) Improving Diversion Works John Ratsey
Hydro-Electric Power Station Lecture No: 4. “”A generating station which utilizes the potential energy of water at a high level for the generation of.
Hydro Electric Power Plant
Changing Nature’s Course Tracy Morris David Trombley.
UNCLASSIFIED B UILDING S TRONG 1 LRD Navigation Scenario.
Chapter 33 Dam Construction. Objectives After reading the chapter and reviewing the materials presented the students will be able to: Give reasons why.
Prof. R. Shanthini Jan 26, Hydroelectric - Hydroelectric - Solar - Wind - Geothermal - Marine (Wave and Tidal) - Biofuels (Biomass, Bioethanol and.
D13/34645 Food, land and water Lessons from the Murray Darling Basin Rhondda Dickson, MDBA Chief Executive 11 October 2013.
Managing Western Water as Climate Changes Denver, CO February 20-21, 2008.
Human Interaction with Rivers River very important to people and have attracted settlement for a number of reasons including: Water supply and fish Fertile.
Chronological is the arranging of events in their order of occurrence in time. For example, the use of a timeline or sequence of events.
Hydro Power Plants A dam is built to trap water, usually in a valley where there is an existing lake. Water is allowed to flow through tunnels in the dam,
Libby Dam June 2006 Spill: Total Dissolved Gas Monitoring.
00/2015 Public Information Centre Addendum to the Environmental Study Report: Millbrook Dam Tuesday, October 20, 2015.
Millbrook Dam Environmental Assessment Study Dan Marinigh CAO/Secretary-Treasurer Otonabee Region Conservation Authority October 20, 2015 Otonabee Conservation.
Penny Coombes Sarah Wharton Gary Davies Simon White River Bee, Desing FLOOD ALLEVIATION FEASIBILITY.
Population - 44,301 18% - Aged 65+ Household Median Income- $29,530 Jan.-March 2004 unemployment 14 % Demographics.
US Army Corps of Engineers BUILDING STRONG ® Mark Twain Lake Water Control Manual Update Joan Stemler St. Louis District Water Control.
Reservoir Operation Simulation D Nagesh Kumar, IISc Water Resources Planning and Management: M7L2 Simulation.
Statistics Storage Volume (Billion m 3 ) Installed Power Generation Capacity (Mw) TotalFlood Irrigation & Hyrdopower Dead Tigris Basin Mosul Dam
By: Maggie Curran, Cara LaMotta, and Tara McKeon.
Surface Water Ecosystems
6.12a DESIGN APPROACH ON BILILO SPATE IRRIGATION PROJECT Presented by Eyob Yehayis.
Defining Good Ecological Potential : Method used in the UK Niall Jones Hydro-morphology senior advisor Environment Agency.
WELCOME TO “DIBANG MULTIPURPOSE PROJECT” SUBMITTED BY : ABHISHEK KUMAR ROLL NO BRANCH – MECHANICAL (5 TH SEM )
Reclamation and Hoover Dam It’s All About The Water.
Extended Diploma Mechanical and Electrical Services Construction Dams and Reservoirs.
1 Spillway Weirs and its Role in Dam Protection Husam Khaled Al Mubark Abdel Aziz Al Mesnd Roume Al Roume Abdullah Al Qashami Civil and Environmental Engineering.
Paper Presented by At the Zambezi River Basin Stakeholder Conference : 22 – 23 Nov Windhoek, Namibia Eng. S. Z. Mhlanga Senior Manager (Projects.
TEHRI DAM & RESERVOIR River Discharge: 30 to 7500 Cumec Design Flood: 15,540 Cumec Gross Storage: 3,540 MCM Live Storage: 2,615 MCM Mean.
Biogeochemistry of Tempe Town Lake
Middle Fork Project AQ 11 – Water Quality Technical Study Plan Report Overview March 10, 2008.
Indiana U t Wendy Balmer
Five Themes of Geography
Reservoir sedimentation
The River Walk What can you remember from the walk along the river on your trip to Henley River and Rowing Museum? Let’s find out!
Presentation transcript:

River Operations Initiatives for Water Quality Management Presentation to Lower Opihi Catchment Group 23rd October 2014 Tony McCormick – CEO Opuha Water Ltd

Presentation Overview Opuha – scheme operation Water quality issues River Lake Flushing Flows Other Initiatives Conclusion

Max Irrigation Flow 6.6 cumecs Scheme Overview Lake Opuha Opuha River Hectares Kakahu 3200 Totara Valley 1766 Levels Plain 3296 Sutherlands 620 Above Dam 2100 Other 5018 Total 16000 Max Irrigation Flow 6.6 cumecs Opihi River Kakahu Scheme Fairlie Tengawai River Saleyards Bridge (min flow measured) Totara Valley Scheme Opihi River Sutherlands Scheme Pleasant Point Levels Plain Scheme Timaru

Opuha Dam and lake. Power Station is below dam (lower centre of picture)

Next slide is the view from here, looking downstream

View downstream from dam showing regulating pond and downstream weir (top right of picture)

Fusible Embankment 700+ cumecs Radial Gate 32 cumecs Fixed Spillway 80 cumecs Fusible Embankment 700+ cumecs View at downstream weir where water release to river is controlled

View of downstream weir: L to R – Gate (32 cumecs); Spillway (80 cumecs); Fusible Embankment (flood flow ~700+ cumecs) Fusible Embankment Radial Gate Spillway

Opuha Dam & Power Station Operation Dam 50m high Lake 710ha, 72 million m3, 22m range Power Station 50m head, 7MW, 16 cumecs Annual Generation 26 GWh Downstream Weir 16 - 35 cumecs 392m --- Lake Opuha Dam Power Station Downstream Weir 370m --- Regulating Pond Opuha River Regulating Pond level fluctuates with power station operation. River flow is maintained at steady rate through gate at downstream weir

Opuha Dam & Power Station Operation Dam 50m high Lake 710ha, 72 million m3, 22m range Power Station 50m head, 7MW, 16 cumecs Annual Generation 26 GWh Downstream Weir 16 - 35 cumecs 392m --- Lake Opuha Dam Power Station Downstream Weir 370m --- Regulating Pond Opuha River Regulating Pond level fluctuates with power station operation. River flow is maintained at steady rate through gate at downstream weir

Water Quality Issues River Lake Periphyton growth Didymo – nuisance Phormidium – toxic Water chemistry Lake Inflows – nitrate and phosphorous ???? Top of lake recreation (avian or bovine) ???? Limnological natural water chemistry when low oxygen conditions exist manganese and iron

Flushing Flows – Key Locations Dam site Lake Opuha Opuha River Skiptons (13km) (flow measured) Opihi River Kakahu Scheme Fairlie Tengawai River Confluence (26 km) Saleyards Bridge (min flow measured) Saleyards Bridge (42km) (flow measured) Totara Valley Scheme Opihi River Sutherlands Scheme SH1 Bridge (52km) (flow measured) Pleasant Point Levels Plain Scheme Timaru

2014 v 2013

Flow Attenuation

River Mouth – Opening & Timing

Periphyton Removal

Periphyton Removal Didymo removal 76%, 85% and 89% Improved on 2013 41%, 12% and 40%

River Temperature

Other Initiatives River Lake Operations Adaptive flow regime Investigations Enhanced monitoring (long term programme) Exposure/Drying Sand feeding Dissolved iron Lake Aeration enhancement

Conclusion No silver bullet Multi faceted issue On going investigations improve understanding and enable … Effective adaptive operations and management