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Kopeopeo Canal Remediation Project Community Liaison Group Meeting

23 October 2018

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Meeting agenda topics • Welcome & introduction – John Pullar • Approval of minutes from previous meeting • Communications update – Kay Boreham • Baseline Eel Tissue Report • Project update – Brendon Love/Ken Tarboton • Independent Monitor – Matt James/Andrew Kohlrusch • Cultural Monitor – Eula Toko • Health, Safety and Monitoring – Des McCleary • Other business • Light lunch

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Communications • Website www.boprc.govt.nz/kopeopeo • Project page updates • Public notices • Bioremediation presentation uploaded to website

Dredging trial, 2015

Open day, 2013

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Communications Project page https://projects.boprc.govt.nz/ projects/kopeopeo-canal-remediation-project • Register to follow the project • Receive email alerts when updates

are published • You can unfollow at any time

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Baseline Eel Tissue Report • Eel sampling undertaken prior to project • Results peer reviewed by MPI toxicologists • Report to be added to website • Key findings

• Dioxins in eel tissue in the remediation zone and to west of SH30 (Powdrell Road) is above conservative human health consumption rates

• Control sites (Orini, Te Rahu, Kopeopeo West sluice gates) all safe to eat

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Project update Overview • Progress made over previous period

• Dredging (progress, monitoring, validation) • CS1 closure planning

• Activities planned for upcoming period

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Overview of progress (21 August – 23 October) Main dredging completed past SH30 bridge along Kope

Canal Road (Approx. 2.6km to date or 51% of canal length) Trial site cleaned up Weed removal ahead of dredge Dredging expert advice to assist with productivity

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Dredging progress

S1. 270m

S2. 390m

S3. 520m

S4. 670m FCS West

Dredged to date 17-10-2018

Validated to 1850m

Lift over bridge 1 Lift over bridge 2 Lift over Paroa Rd

Bridge 3

Lift over SH30 Bridge 4

S1 to S4 1850m

2600m

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Section 5 in progress

• Several areas will require re-dredge

• Dredging expert engaged to improve progress

• Weed removal ahead of dredge

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Geobags filled

• Equivalent of 18 geobags filled to date

• 843 bulk bags of o/s material (at 17/10/18)

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Oversize Material Handling • 843 bulk bags of o/s material (at 17/10/18) • Bulk bin installed

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Dredge trial site clean-up • Clean-up completed on

26/9/2018 • IM to discuss

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Activities planned for upcoming period

• New dredge methods being trialled in Section 5 • Validate Section 5 • Move water treatment plant to CS3 • Prepare CS1 closure plan

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Independent Monitor monthly report available on website

See the Reports and Key documents page

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Independent Monitor Update • Trial site clean up completed • Site shutdown • Validation sampling • Dredging • Water quality • CS1 clean up process • Security • Subdivision works • Car crash • Revegetation • Barge lift into Section 5 • Geobag repairs • Bioremediation probes and sampling

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Trial Site Clean Up

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Site Shutdown Shutdown – 17 – 21 September • Site clean up • Staff wellbeing • Maintenance • Equipment installation • Environmental protection

and compliance

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Water Quality • Changes due to the limitations of turbidity monitoring

during periods of increased turbidity within the canal e.g. inflows from adjacent land.

• Adopted value of 11 pg/L based upon no observed effect concentration.

• NZ Drinking water standards – 30 pg/L. • Based upon research showing the NOEC was between

11 and 38 pg/L. • Used to confirm discharges are acceptable. • Agreed upon by project team, consent authority and

IM. • All results during July, August, and September were

between 5.07 pg/L and 8.1 pg/L.

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Canal Sediment Validation The 95% UCL for Total PCDD/F I-TEQ Upperbound results up to the end of Section 4 was 36 pg/g, which is below the remedial target of 60 pg/g.

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Cultural Monitor update

• Provides regular reports to TRONA and IM • Ongoing monitoring of Section 5 as needed

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Health & Safety • Works paused 18-21 September for H&S to

re-assess and ensure before moving into more contaminated area:

• Staff Welfare • Environment safety and awareness • Clean up of CS1 • Address equipment failures

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Environment • Noise monitoring – ongoing • Boost pump Shaw Rd location readings • Actual reading taken 16/10/18 – 10:30am • 101.3 dBA at pump - Gate 60.3 - Residences 59.4

Traffic Management • As needed for pipe moves • Currently shoulder close is active at: • Kope Drain Road and Shaw Road

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Monitoring & Reporting • Weekly reporting of daily progress including

any H&S issues 08/10/2018 - 14/10/2018

Item No# Comment – Actions - OutcomeInductions 291 1X University of waikato,1x Trade staffFirst Aid 0Medical Treatment Injury 0Lost Time 0Noise monitoring dBA Date Not required this week

Dredge instruction/process 23-Aug 15:55 5792257.75 1947228.82 start dredging to new DTM

Date Comments Mtrs D/T O/S Bag # Section 5 XS# Northing EastingMonday 8-Oct Grant farms started otherside of pipelines 21 69 4524 792

XS23b 5792244.14 1947631.35Tuesday 9-Oct Scales out of commission 19 60 3049+ 802 XS23b 5792243.4 1947631.35Wednesday 10-Oct WiFi improvements, 16 64 809 XS24a 5792242.48 1947650.24Thursday 11-Oct Bag 29.30 roll out-WLC 19 77 817 XS25 5792242.13 1947665.83Friday 12-Oct Small delay with site generator prime

pump problem resulting in a small diesel spill-12metres redredge

15 54 825

XS25B 5792242.24 1947684.93Saturday 13-Oct Wood pellet filter in place. 17 63 830 XS26 5792240.68 1947698.65Sunday Monday Start 5792244.14 1947631.35Total for week 107 387 Saturday End 5792240.6 1947715.63Daily Adv. Total 6 day week 17.83 64.50 0

Weekly Operational Information

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Other business • Celebration hui for Tracey

Godfrey's Te Ohu Mo Papatuanuku project

• Monday 29th October 6.15pm

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Other business • Next meeting: 22 January 2019