Hikurangi Swamp Working Group Meeting 25/9/14 Topic/Owner Information - PowerPoint PPT Presentation

Hikurangi Swamp Working Group Meeting 25/9/14 Topic/Owner Information 1 Last Meeting and Apologies Minutes 2 Terms of Reference & Code of Representative positions & distribution list Conduct 3 Operations/Maintenance 1. Monthly Overview from Hydrotech 2. Pump Availability 3. Pump Rewind 4. Power Usage 5. Pump Operation 6. Te Mata Pump Blockage & Screen Clips 7. Otonga Main Switch 8. Okarika Tomo 9. Spillways 4 Finances Hydrotech Report Review 5 14-15 Drain Clearing Drain Clearing Proposal 6 Buildings Maintenance Building Condition 7 2014/15 Capex Stopbank Adjustments Station Access Training and Trouble Shooting Guide 8 Grazing Licences 9 Berm Land Resources Resources 10 Term of Reference Short Term Objectives 11 12 AOB

Terms of Reference Area of Representation Rep Name Primary Junction Pocket Deputy Primary Evan Smeath Te Mata Pocket Deputy Primary Phillip Hindrup Otonga Pocket Deputy Ray Hindrup Primary Rosemary Rowan Lister Mountain Pocket Deputy Donald Gillett Primary Andrew Ilich Tanekaha Pocket Deputy Jack Ilich Primary Ken Finlayson Ngararatunua Pocket Deputy Glen Martin Primary Geoff Crawford Okarika Pocket Deputy Robert Olsen Primary Simon Donelley Whakapara Catchment Deputy Primary Luke Beehre Waiotu Catchment Deputy Alan Moscript Primary Hona Edwards iwi/hapu Deputy Primary Tim Brandenburg Fonterra Deputy Murray Van Der Maas Primary Tess Dacre Northland Regional Council Deputy Bruce Howse

Operations and Maintenance – Overview of HydroTech’s August Report • Some time was spent clearing all the wood and debris from the pumping station, burning it where dry enough to allow • Two storms came through, a small one in the middle of the month and a larger one at the end of the month which resulted in a small volume, short duration overtopping event

Operations/Maintenance - Pump Availability ~1.1 m 3 /s Pumps ~ 4.1 m 3 /s Pumps Station Station Capacity A B C D E (m 3 /s) Otonga Flygt (17%) Flygt (17%) Pleuger (65%) 6.3 Te Mata Pleuger (17%) Flygt (17%) KSB (65%) 6.3 Mountain Pleuger (50%) KSB (50%) 2.2 Tanekaha McKewen Pleuger (50%) 2.2 (50%) Junction Pleuger 1.1 (100%) Ngararatunua Pleuger (11%) Pleuger (11%) Pleuger (39%) Pleuger (39%) 10.4 Okarika Pleuger (10%) Pleuger (10%) Pleuger (10%) Pleuger (35%) Pleuger (35%) 11.5

Operations/Maintenance - Pump Re-wind Update • Goal is to have all stations operational and hold 1 spare small and one spare 240HP Pleuger. • 2 Small Pleuger rewinds – both pumps have been delivered to WWTP (internal storage) on Tuesday 16 th September.

Operations/Maintenance - Pump Re-wind Update • 3 rd small Pleuger is with SAAW – on internal investigation one of the internal slots has blown, if can be repaired then will be re-wired 6-8 weeks. • Spare 240 HP Pleuger repair – this is completed, stored safely at SAAW’s depot. Claim still with insurer. • Spare 240 HP Pleuger Prop – Sourcing of a replacement prop is being undertaken, likely have to cast a new one from one of originals on a pump.

Operations/Maintenance - Power Usage

HydroTech August Report Review – Pump Hours Run Pocket Pump Junction Te Mata Tanekaha Mountain Otonga Ngararatunua Okarika A 44 87 35 32 146 84 57 B 141 28 153 42 0 0 C 0 D 22 106 39 53 E 48 50 All pumps were available at month end, apart from pump C at Okarika and pump B at Ngararatunua. The distribution of pump hours indicates that it was the pumps with the lower set-point that were operating more and keeping on top of the flows

Te Mata Pump Blockage

Screen Clips – HydroTech installing

Otonga Main Switch

Okarika Tomo

Okarika Tomo

Okarika Tomo

Okarika Tomo

Spillways maintenance • HydroTech have been instructed to undertake the mowing of the spillways, approx. cost $1000 every 6 weeks

HydroTech August Report Review - Finances Flood Inspection Maintenance Environmental Attendance Drain Clearing $2,638.22 $1,264.25 $519.46 $2,631.89 - Maintenance – Tire blockage on Pump D at Te Mata (lifting and clearing) Environmental – Confirm probe heights to ensure pumps not cycling Flood Attendance – 19 separate invoice lines detailing the individual visits

14-15 Drain Clearing Proposal • The drain clearing requests have been received.

Building’s Maintenance

Building’s Maintenance

Buildings Maintenance Material Cost Labour Door & Interior Wall Conden Water tank Bird- Frame Wash & -sation & pipework Duration Total proofing Work Paint Issue removal (days) Mileage Cost Junction $125 $50 $90 $20 $25 2.5 250 $1,560 Te Mata $125 $50 $90 $20 1.5 150 $1,035 $125 $90 $25 2 200 Otonga $1,240 Tanekaha $125 $50 $90 $20 $25 2 200 $1,310 Mountain $125 $50 $90 $20 2.5 250 $1,535 Ngararatunua $125 $90 $25 2 200 $1,240 Okarika $125 $90 $20 $25 2 200 $1,260 Rates $50/hr $100/d $9,180

2014/15 Capex - Stopbank Adjustments • Clement Contractors were the lowest conforming tender received. ( Only 2 tenders received on this project) • Clements final tendered price of $263,695.21 was accepted. • Recommendation for Contract award sent to Council 5 th September. • Recommendation for Contract award returned Signed 9 th September. • Award letter sent to Clements Contractors the successful tendered contractor 15 th September • PO still to be signed at Chief Executive Officials level (Mark Simpson) • Start date to be confirmed but cannot start before 1 st October due to consent conditions, the area is still too wet so programme is envisaged to start early November.

Access to stations? • Change in H&S legislation • Demonstrate competency / training for all those who operate council assets

Access to stations? Pump Station not working as expected (spillways not spilling and water level in pocket high) Have you been trained and deemed competent? Yes No Call HydroTech/Council Follow Guide (next slide) Station Operational? No Yes HydroTech arranged Station Operational to be in attendance

Access to stations? Trouble Shooting Guide (To be used if spillways not spilling, water level in pocket high and station not operating) 1. Are screens relatively clear of weeds (level sensors within chamber behind screen)? 2. Check inside pump station; • Check power is available on all three phases via the Voltmeter and rotary switch on the main switch board • If power is available on all three phases check that the pump Auto/Off/Manuel switch is in the Auto position . • If the pump is in the Auto position but not running turn the switch to the Off position and press the reset button and then turn the switch back to the Auto position . • There is a time delay on each pump – so wait for a 10 to 15 minutes for the timer to time out . • If the pump restarts- check the intake screens on the catchment side of the station . If there are weeds against it this is generally the reason for the pump tripping out – Turn off the pump and clear the weeds with the weed rake or call Greg to bring in the small digger with the weed bucket . • If the pump won’t restart call Greg as there could be a blown fuse or a more serious electrical issue – Don’t open panels as there is an electrical hazard present and risk of electrocution or electrical flashover and explosion . • For assistance Call Greg Palmer 021730349 or Andrew Barclay 021730318 or WDC Callcentre 094304200

Access to stations? Options; 1. Lock-down - HydroTech personnel only 2. Partial lock-down – Harder to access stations 3. No lock-down – Train all

Grazing Licences • The following Licencees do not have current licences their Hikurangi Swamp Grazing licences: Expiry 2014

Long Term Plan

Resources • WDC staff resources stretched during major events incidents when scheme beneficiaries are seeking greater input from staff. • In non event situations the time spent on scheme issues by WDC staff has increased. This has included level and detail of information being requested, involvement in wider scheme issues (including consenting, fisheries, land management), requests for meetings, correspondence and site visits, etc. • To continue to provide this level of involvement additional resource are needed. This would come at cost to scheme. • Proposal to group – Employ dedicated Hikurangi Scheme staff (full or part time)?

Short Term Objectives (Page 1 of 2) • To meet the terms of the resource consent ($350k for stop bank levelling) – Ongoing, due for completion this summer • Survey the berm land to understand the height variation/ restrictions down through the swamp – quote obtained, see next slide • Address the issue with the large trees/ significant undergrowth in the berm land to the immediate SW of Otonga PS – quote obtained, see next slide • Assess the restrictive influence of the old road formation below the Jordan Valley Bridge – quote obtained, see next slide • Assess the condition and understand the possibility of clearing restrictions on the Wairua River downstream of the Matarua Bridge – completed, see subsequent slides