11 th February 2016 Meeting held at Fonterras Jordan Valley Farm - - PowerPoint PPT Presentation

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11 th february 2016
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11 th February 2016 Meeting held at Fonterras Jordan Valley Farm - - PowerPoint PPT Presentation

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Hikurangi Swamp Working Group Meeting 11 th February 2016 Meeting held at Fonterras Jordan Valley Farm 1000 - 1200 Agenda Topic/Owner Information 1 Last Meeting Minutes 2 Operations/Maintenance 1. Monthly Overviews from Hydrotech 2.

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Hikurangi Swamp Working Group Meeting

11th February 2016

Meeting held at Fonterra’s Jordan Valley Farm 1000 - 1200

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Agenda

Topic/Owner Information 1 Last Meeting Minutes 2 Operations/Maintenance 1. Monthly Overviews from Hydrotech 2. Pump Availability 3. Power Usage 4. Pump Operation 5. New Signage 6. Maintenance Activities (Photographs) 3 Finances Hydrotech Monthly Finance Review OPEX 2015/16 4 Environment Bermland Ox-bow Restoration Update Pocket Ox-bow Restoration Update Eel monitoring Program 5 15-16 Drain Clearing Drain Clearing Progress Drain Clearing Remaining Program 6 Level of Protection Option for Enhanced Protection - 1998 Review Findings 7 Compliance with Consent Compliance with Consent Reviews 8 Living Water Update 9 AOB

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Operations and Maintenance – Overview

  • f HydroTech’s October Report
  • Settled weather and minimal rainfall
  • Low river level allowed for all the

Pleuger bays pumped out and pumps inspected mechanically as well as the concrete structure

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Operations and Maintenance – Overview

  • f HydroTech’s November Report
  • Undertaken work identified during the

quarterly inspections, such as replacing guide rail stanchions corroded fitting with stainless steel

  • Crack in wall at Ngararatunua Pump

Bay A has been repaired

  • No rainfall so minimal pump operation
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Operations and Maintenance – Overview

  • f HydroTech’s December Report
  • Vertical lift pumps at Mountain, Otonga

& Te Mata Station were lifted out to inspect impellers & oil (all good)

  • No notable rainfall events
  • Given the presently low spend on

electricity, and flood attendance a number of minor H&S jobs are being undertaken

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Operations/Maintenance - Pump Availability October to December

Station

~1.1 m3/s Pumps ~ 4.1 m3/s Pumps

Station Capacity (m3/s) A B C D E Otonga Flygt (17%) *1 Flygt (17%) *1 Pleuger (65%) 6.3 Te Mata Pleuger (17%) Flygt (17%) KSB (65%) *1 6.3 Mountain Pleuger (50%) KSB (50%)*1 2.2 Tanekaha McKewen (50%) Pleuger (50%) 2.2 Junction Pleuger (100%) 1.1 Ngararatunua Pleuger (11%) *2 Pleuger (11%) Pleuger (39%) Pleuger (39%) 10.4 Okarika Pleuger (10%) Pleuger (10%) Pleuger (10%) Pleuger (35%) Pleuger (35%) 11.5

One large & one small spare Pleugers available in storage

*1 Pumps temporarily unavailable in December whilst lifted out for inspection (pumps would

  • nly have been unavailable for a matter of hours and would not have been lifted if bad

weather forecast)

*2 Pump A temporarily unavailable whilst concrete repairs undertaken

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Operations/Maintenance - Power Usage

  • 10000

10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 Swamp Power Cost 2012/13 Swamp Power Cost 2013/14 Swamp Power Cost 2014/15 Swamp Power Cost 2015/16

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HydroTech October Report Review – Pump Hours Run

Pump Pocket

Junction Te Mata Tanekaha Mountain Otonga Ngararatunua Okarika

A B C D E

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HydroTech November Report Review – Pump Hours Run

Pump Pocket

Junction Te Mata Tanekaha Mountain Otonga Ngararatunua Okarika

A B C D E

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HydroTech December Report Review – Pump Hours Run

Pump Pocket

Junction Te Mata Tanekaha Mountain Otonga Ngararatunua Okarika

A B C D E

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Stopbank Signage

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Flygt Pump at Te Mata - Bracket protection

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Junction – Vortex Board Bracket Replacement & Anti-turbulence Vanes

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Ngaratunua Pump Bay A – Concrete Repairs

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Ngaratunua Pump Bay A – Bracket Replacement

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Ngararatunua Pump Bay A – Vane & impeller Wear

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HydroTech October Report Review - Finances

Inspection Maintenance Environmental Flood Attendance Drain Clearing

$2,638.22 $245.61

  • $2,320.00

Inspections Preliminary & General (Monthly Checks) Maintenance Replace safety chain & corroded bolts Drain Clearing October’s drain clearing (see later)

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HydroTech November Report Review - Finances

Inspection Maintenance Environmental Flood Attendance Drain Clearing

$2,638.22 $3,341.67

  • $34,019.19

Inspections Preliminary & General (Monthly Checks) Maintenance Replaced corroded pipe & failed ‘O’ rings on pump Replaced numerous corroded brackets and fixing bolts Replaced safety handrail stanchion & fittings Investigate low battery warning alarm Assist Paneltech with concrete repairs Drain Clearing Remove old road formation below Jordan Valley Road November’s drain clearing (see later)

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HydroTech December Report Review - Finances

Inspection Maintenance Environmental Flood Attendance Drain Clearing

$2,638.22 $4,995.81

  • $14,203.80

Inspections Preliminary & General (Monthly Checks) Maintenance Pump down bays for pump inspection Replace cable support grip, corroded pipe, stanchion fittings, pump fixing bolts, pump brackets Installed new main power switch Replace diffuser & vent pipe Drain Clearing November’s drain clearing (see later)

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Finances – OPEX 2015/16

*1 Drain clearing rate budget is $100k, ($96k in rates plus $4k carryover) and is included in this budget *1 Approx only $20,000 spent to date on electricity

Account Description 2015/16 Budget 2015/16 Forecast Other Rentals Received (42,594) (27,901) Telephone and Other Communication 4,080 Electricity Supply Costs *1 184,500 171,736 General Stationery - other than Office 770 Health & Safety Compliance 5,000 3,750 Water Rights Paid NRC Consent 2,050 2,808 Payments to External Contractors *1 170,000 169,004 Legal Fees 10,000 5,000 Other Professional Fees 3,000 3,870 Infrastructure & Services (not Contract) 60,000 45,000 Plant & Equip Maintenance non Contract 90,000 76,285 Total 481,956 454,401

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Environmental – Ox-bow Restoration

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Environmental – Ox-bow Restoration

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Environmental – Ox-bow Restoration

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Environmental – Ox-bow Restoration

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Environmental – Ox-bow Restoration

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Environmental – Ox-bow Restoration

  • Agreed a handover date with lease holder in March

2016 (following installation of a water supply)

  • 7 wire fencing has been completed on northern ox-

bow, fence line on southern ox-bow being repaired

  • Living Water have funded an ecological survey and a

10 year restoration plan

  • Plan activities;
  • Pest control (both flora & fauna)
  • Ephemeral wetland creation (earthworks)
  • Planting
  • Will work and fund the plan with Living Water, DoC,

Fish & Game and Iwi

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Environmental – Ox-bow Restoration

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Environmental – Ox-bow Restoration

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Environmental – Eel Monitoring

  • The Resource Consent for the Scheme (Condition 17)

requires “undertaking of studies to practicably minimise fish entry into the pumps

  • WDC has agreed to partially fund (~$18k) and assist

with labour; a NIWA lead study into migrating eels on the Wairua River

  • NIWA study is in five portions, WDC has agreed to fund

two, Living Water & Northpower are funding the other three.

  • Proposal is to tag 60 migratory eels and monitor them

around Mountain Pump Station, Wairua Falls and Mangakahia Bridge

  • (Additional – spat ropes to aid native fish passage

upstream in low flow conditions are being installed on four of the pump stations)

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2015/16 Drain Clearing Progress

Month Area Equipment/Item Description Remedy

Oct-15 Te Mata Long reach Limbing over hanging trees above drain Clean drain 381m Nov-15 Te Mata Pocket Long Reach Digger Coutts Drain Drain clear weeds with long reach Nov-15 Te Mata Pocket 12 tonne digger Coutts Drain Tree Limb top section of drain Nov-15 Te Mata Pocket Long Reach Digger O'Reilley Drain Drain clear weeds with long reach - Minus 434m from top section as crops are growing. Original request 734m Nov-15 Te Mata Pocket Long Reach Digger Griffin Drain Drain clear weeds with long reach Nov-15 Te Mata Pocket Long Reach Digger Te Mata Stream Drain clear weeds with long reach - Minus 310m from top section as per Evan Smyth's request. Original request 2885m Nov-15 Te Mata Pocket Long Reach Digger Forsyth Stream Drain Clear weeds with long reach Dec-15 Te Mata Long Reach Digger Ox Bow, horse shoe Clean and clear channel Dec-15 Otonga Pocket 12 tonne digger Lower Luptons Point Drain - Rebenching area for long reach digger Rebenching with 12 tonne Dec-15 Otonga Pocket Long Reach Digger Luptons Point Drain - clear weeds Clean and clear weeds Dec-15 Otonga Pocket Long Reach Digger Wilsonville Quarry Drain clear weeds Clean and clear weeds Dec-15 Okarika Pocket ATV Spraying Whyte Drain Spray Drain Dec-15 Mountain Pocket ATV Spraying McKenzie Drain Spray Drain Dec-15 Mountain Pocket ATV Spraying White Drain Spray Drain Dec-15 Mountain Pocket ATV Spraying Peterson Drain Spray Drain Dec-15 Mountain Pocket ATV Spraying Lister Drain Spray Drain Dec-15 Mountain Pocket ATV Spraying Palmer Drain Spray Drain Jan-16 Okarika Pocket Long Reach Riponui Stream Clean and clear weeds Jan-16 Okarika Pocket Long Reach Bench area for long reach Benching area

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Weed Growth In Drains

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2015/16 Drain Clearing – Remaining Program

  • Long reach presently operating in Ngararatunua

Pocket, due complete this week

  • Once weed cleared in Ngararatunua, the soda block

rapids work will be undertaken w/c 15th February

  • Long reach will then be transported to Okarika to

finish the program; still on course to finish complete program by end of February

  • The remaining drain clearing budget will be used

(as previously agreed) on Jack’s swale, to be undertaken in March

  • All the above is of course weather dependant
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Option for Enhanced Protection

  • The original Hikurangi Swamp Scheme

Review from 1998 has been located

  • Report identified only one site as being

feasible; Peach Orchard Road, located on

upper tributary of the Wairau River.

  • Estimated cost (in 1998) was estimated to

be $1.8M to store 25Mm3 with a 10m high detention dam (Otonga Proposal is 30Mm3+)

  • Benefits not fully defined as it is only one of

the multiple upper catchments

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Compliance with Conditions of the Consent

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Compliance with Conditions of the Consent

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Living Water – verbatim from Tim Brandenburg’s e-mail

  • Fiona Gordon and I met with Rosemary Lister to discuss a stream bank

planting project along her boundary and Mangawhero Stream linking up the work already done next to the Fonterra QEII covenant. Rosemary and Fiona have agreed on the plant list and the work will be completed this planting season (May June)

  • Fiona has also planned the planting proposed for just south of the Apotu

road bridge on the Mangahahuru

  • Both areas will feature grasses (bendy plants) so as not to impede flood

flows

  • I had committed to providing a memo to explain this and formally ask for

advisory Committee support. I would prefer to deliver this personally at the next meeting rather than just send it out to you. It then can be entered into the records

  • The Land Care Research Team who will deliver the Ecosystem Services

project met DOC and Fonterra staff to outline the schedule. They will be meeting with stakeholders (including this group- suggest next meeting in March? ) over the next few weeks to explain the project.

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AOB