Tui Mine Remedial Works – Water Quality Monitoring (After … · Tui Mine Monitoring Report 2012 – Water Quality Monitoring (After Alkalinity Injection for Rehabilitation of Tui

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PATTLE DELAMORE PARTNERS LTD

Tui Mine Monitoring Report 2012 – Water

Quality Monitoring (After Alkalinity Injection for

Rehabilitation of Tui Mine)

Waikato Regional Council

solutions for your environment

Tui Mine Monitoring Report

2012 – Water Quality

Monitoring (After Alkalinity

Injection for Rehabilitation of

Tui Mine)

• Prepared for

Waikato Regional Council

• January 2013


Level 4, PDP House

235 Broadway, Newmarket, Auckland 1023

PO Box 9528, Auckland 1149, New Zealand

Tel +9 523 6900 Fax +9 523 6901

Web Site http:/ / www.pdp.co.nz

Auckland Wellington Christchurch

solutions for your environment

P A T T L E D E L A M O R E P A R T N E R S L T D i i

T U I M I N E M O N I T O R I N G R E P O R T 2 0 1 2 – W A T E R Q U A L I T Y M O N I T O R I N G ( A F T E R

A L K A L I N I T Y I N J E C T I O N F O R R E H A B I L I T A T I O N O F T U I M I N E )

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Executive Summary

Waikato Regional Council (WRC) has commissioned Pattle Delamore Partners Ltd (PDP) to

undertake water resource monitoring in the Tunakohoia Stream in the vicinity of the

disused Tui Mine, Mt Te Aroha.

During the 2012 monitoring rounds, work was underway on Phase 1 and Phase 2 of the

remedial works for the Tui Mine. The work was aimed to reduce the mass load of trace

elements being discharged in water seeping from the underground workings at the Tui

Mine Site. Remedial works in level 4 and level 5 of the Tui Mine were underway during

the monitoring period. Works were also underway to stabilise the Tui tailings dam during

the monitoring period. Part of the work on the tailings dam involved diversion of the

stormwater discharge from SW15 back into the tailings dam. Due to the diversion of the

flow of stormwater from this site, SW15 could not be sampled.

Three rounds of water quality sampling were undertaken by PDP in September, October

and November 2012. In order to assess any changes in the water quality due to the

continuing remedial works, the laboratory results were compared to the results reported in

the PDP (2010) baseline monitoring report and, at the request of WRC, additional data

supplied from WRC files (2 July, 19 August and 23 October 2009). Also, the results were

assessed against ANZECC (2000) Contact Recreational Standards for consideration of the

quality of water for recreational purposes. The Laboratory reported metal concentrations

above the ANZECC (2000) Contact Recreational Standards at all of the 2012 monitoring

round sampling sites, with the exception of site SW8.

At Adit 4 (monitoring site SW3) there has been a significant decrease in the concentration

and mass loads of dissolved and total cadmium, copper, iron, lead and zinc during the

second and third monitoring rounds. Results from this site are still higher than baseline

levels reported by PDP in 2010.

Water quality measurements undertaken on the discharge from Adit 5 (monitoring site

SW5) have shown that alkalinity and concentrations of dissolved and total calcium, iron,

magnesium, manganese and sulphate have been increasing over the 2011-2012

monitoring period. The concentration of these parameters is now significantly elevated

above the baseline levels reported by PDP in 2010. The concentration and mass

discharge of other metals monitored at SW5 remain similar to 2011 levels and lower than

baseline levels reported for this monitoring site by PDP in 2010.

At SW100 (Tunakohoia stream, downstream of SW3 and SW5) the concentration of

calcium (dissolved and total), magnesium (dissolved and total) and sulphate was higher

than the range of results that were reported in the PDP (2010) baseline monitoring

report.

At all other monitoring locations there has been no significant change in the

concentrations or mass load of the contaminants.

P A T T L E D E L A M O R E P A R T N E R S L T D i i i



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Table of Contents

S E C T I O N P A G E

Executive Summary ii

1.0 Introduction 1

2.0 Sampling Methodology 2

2.1 Field Sampling Locations 2

2.2 Sampling Order 2

2.3 Sampling Techniques 2

2.4 Field Measurements 3

2.5 Flow Monitoring Procedures 3

3.0 Field Monitoring Results 4

4.0 Flow Monitoring Results 6

5.0 QA/QC 6

6.0 Comparison of Results against ANZECC

Guidelines 7

7.0 Assessment of the Mass Loads of

Contaminants at Each of the Monitoring

Locations 7

8.0 Conclusions 9

9.0 References 11

Table of Tables

Table 1: Tui Baseline Water Quality Monitoring Sites and

Parameters for 2012 2

Table 2: Stream Flow Monitoring Methodology 4

Appendices

Appendix A: Figure

Appendix B: Tables

Appendix C: Fluxes

Appendix D: Quality Assurance/Quality Control

Appendix E: Laboratory Results

P A T T L E D E L A M O R E P A R T N E R S L T D 1



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1.0 Introduction

Waikato Regional Council (WRC) has commissioned Pattle Delamore Partners Ltd (PDP) to

undertake water resource monitoring in the Tunakohoia Stream in the vicinity of the

disused Tui Mine, Mt Te Aroha. Three rounds of water quality sampling were undertaken

by PDP in September, October and November 2012, to establish the water quality of the

water resources within the Tunakohoia stream during the on-going rehabilitation of the

underground mine site.

During the 2012 monitoring rounds, work was underway at the mine site on Phase 1 and

Phase 2 of the remedial works, which was aimed at reducing the mass load of trace

elements being discharged from the underground workings at the Tui Mine Site, and at

stabilising the tailing dam site. Remedial works in level 4 and level 5 of the Tui Mine

were still underway during the monitoring period.

According to information received from Tonkin and Taylor (Tonkin and Taylor, 2012) ,

remedial works during this monitoring period included dewatering of Adit 4, which

occurred from 13 September to 28 September 2012 and injection of 20 tonnes of lime

just behind coffer dam 2 on the 25 to 25 September 2012. Work was also undertaken to

divert the flows with the poorest water quality from behind coffer dam 2 into race 3.

Another part of the remediation programme involved diverting stormwater away from

discharge point SW15. During the 2012 monitoring programme no discharge was

observed from discharge point SW15.

The work undertaken by PDP included:

• The collection, analysis and interpretation of water quality samples over three

monitoring rounds; and

• The measurements of stream flow at each of the water quality sample locations

during each of the three monitoring rounds.

A similar methodology was used by PDP during this monitoring period as was used by PDP

in the October 2009 baseline monitoring of the site, when a series of monitoring rounds

were undertaken at the mine site prior to remedial works (see PDP 2010).




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2.0 Sampling Methodology

2.1 Field Sampling Locations

Water quality samples were collected from the baseline monitoring locations on the

Tunakohoia Stream as outlined in Table 1 below.

Table 1: Tui Baseline Water Quality Monitoring Sites and Parameters for 2012

Site Label Site Description Laboratory Parameters

SW3 Adit 4 outlet (discharges to Tunakohoia Stream,

north branch).

pH, EC, TSS; metal suite1; Cation

Anion Profile; Total dissolved silica

SW5 Adit 5 outlet (discharges to Tunakohoia Stream,

north branch).

pH, EC,TSS; Drinking water metal

suite1; Cation Anion Profile; Total

dissolved silica

SW7

Tunakohoia Stream north branch, upstream of

south branch confluence and downstream of

tailings dam.

pH, EC, TSS; metal suite1

SW8 Tunakohoia Stream south branch, upstream of

north branch confluence, town water supply inlet.

pH, EC, TSS; metal suite1

SW100

Tunakohoia Stream north branch, upstream of

Mountain Access Road, downstream of SW3 and

SW5 discharges. Potentially impacted by seepages

from the Tui Mine.

pH, EC, TSS; metal suite1; Cation


SW101

Ruakaka Adits Tributary, downstream of the

Ruakaka Adits and upstream of Mountain Access

Road culverts (discharges to Tunakohoia Stream,

north branch). Potentially impacted by seepages

from the Tui Mine.

pH, EC,TSS; metal suite1; Cation


Notes: 1. Total and dissolved metals.

2.2 Sampling Order

Samples were collected in a specific order to minimise the potential for cross

contamination from earlier sampling events. Downstream, potentially less contaminated

samples were collected first before upstream potentially more heavily contaminated

samples. The order of sampling during the three 2012 monitoring rounds was: SW8,

SW7, SW100, SW101, SW5 and SW3.

2.3 Sampling Techniques

PDP collected water samples during all of the 2012 monitoring events under either low or

moderate flow conditions, as this allowed the results to be compared to the baseline

monitoring round as well as minimising the risk to health and safety of staff working within

the water ways. To ensure stream flow conditions were met, PDP staff monitored the

weather forecast from Metservice and examined rainfall records from the Te Aroha rain-

gauge via the WRC website.




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At each monitoring site, water samples were collected before any field measurements and

flow monitoring had been undertaken, to prevent disturbance of sediments which could

potentially affect the water quality.

The water samples were collected mid-stream in the main stream flow and care was

taken not to disturb any sediment at the bottom of the stream. This was particularly

important around discharges from the mine adits (SW3 and SW5) as sediments in these

areas contain high concentrations of iron oxide flocculation. (If disturbed, the flocculation

can enter the sample container and elevate total metal and suspended solid

concentrations in the sample). If any flocculation did enter the sample container, the

sample was discarded downstream of the sampling site. A new sample was then

collected upstream of the area which had been disturbed.

Samples were collected and stored in the appropriate sample bottles which had been

supplied and certified clean by the analysing laboratory. Each sample bottle was uniquely

identified in accordance with PDP chain of custody and sampling labelling procedure.

After collection, the water samples were sent under standard PDP chain of custody

documentation to the appropriate laboratories as soon as possible. This was to ensure

the laboratories received the samples within the required hold times and to ensure

sample integrity was maintained.

2.4 Field Measurements

To measure field parameters, a Horiba multi-parameter water quality U-50 series system

(physicochemical parameters: dissolved oxygen, electrical conductivity, pH, redox

potential, temperature and turbidity) was used.

Prior to each sampling round, the field instrument was calibrated against NIST traceable

standards as per the manufacturer’s instructions. This was in accordance with good

laboratory practices (GLP) as detailed in USEPA and APHA/ AWWA/ WEF “Standard

Methods for the Examination of Water and Waste Water” (21st edition). This was done to

minimise any sampling variability between the current monitoring round and the sampling

undertaken during the baseline monitoring round. Between monitoring locations, the

sensor of the meter was rinsed with Type 1 water (deionised water) and the field meter

was checked against a manufacturer’s quick-calibration solution (electrical conductivity,

pH, redox and turbidity) and/or air saturation readings (dissolved oxygen).

2.5 Flow Monitoring Procedures

Flow monitoring was required to establish an estimate of mass contaminant loads from

the mine adits and Tunakohoia Stream. Where possible, flow was gauged using a SonTek

FlowTracker Handheld-ADV® (Acoustic Doppler Velocimeter). The FlowTracker requires

water to be at least 0.05 m deep in order to gauge cross sectional area and flow. Where

this was not possible, volumetric flow into a bucket of known volume was used. Table 2

outlines the flow monitoring methodology that was used at each site during the 2012

monitoring rounds.




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Table 2: Stream Flow Monitoring Methodology

Flow Monitoring Location PDP Method of Flow Monitoring

SW3 Volumetric

SW5 Volumetric

SW7 Flow gauging

SW8 Flow gauging

SW100 Flow gauging

SW101 Volumetric

3.0 Field Monitoring Results

In order to assess the effects of the alkalinity injection, that was being used to

rehabilitate the mine, the laboratory results were compared to the results reported in the

PDP (2010) baseline monitoring report and additional data supplied by WRC (2 July, 19

August and 23 October 2009). See Appendix B for result tables for each monitoring

location.

The key findings of the September, October and November 2012 Tunakohoia Stream

water resource monitoring rounds are summarised below on a site by site basis. Any

increase or decrease in contaminant concentrations is less than 10-fold, unless otherwise

stated.

SW3 (Adit 4 Discharge)

• During the first monitoring round in 2012 (September) the concentrations of all

parameters were similar or slightly higher than those reported during the 2011

monitoring round.

• The concentrations of most parameters decreased significantly during the second

(October 2012) and third monitoring (November 2012) rounds.

SW5 (Adit 5 Outlet)

• The alkalinity and concentrations of dissolved and total calcium, iron,

magnesium, manganese, and sulphate have increase significantly above the

range of results reported in the PDP (2010) baseline monitoring report. Results

for these parameters have consistently increased in all the monitoring rounds

undertaken in 2011 and 2012.

• Concentrations of total cadmium, copper and lead were lower than the range of

results that was reported in the PDP (2010) baseline monitoring report and are

similar or lower than those results that were reported during the 2011 monitoring

round.




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• The concentrations of dissolved and total zinc appear to be similar to the levels

found during the 2011 monitoring round and reported in the PDP (2010)

baseline monitoring report.

• The pH at this site remains circum-neutral.

SW7 (Tunakohoia Stream North Branch, Downstream of Tailings Dam)

• The concentrations of calcium measured during the 2012 monitoring rounds

were higher than the range of results reported in the PDP (2010) baseline

monitoring report.

• The concentrations of total iron measured during the 2012 monitoring rounds

were lower than the range of results that were reported in the PDP (2010)

baseline monitoring report but within the range reported for 2011 (PDP 2012).

• The concentrations of dissolved and total magnesium were slightly elevated in

the November 2012 monitoring round compared to previous results from this

site.

• The concentrations of most metals during the 2012 monitoring rounds were

within the range of results reported in the PDP (2010) baseline monitoring

report.

SW8 (Tunakohoia Stream South Branch, Town Water Supply Inlet)

• The concentrations of most metals during the 2012 monitoring rounds were

generally within the range of results reported in the PDP (2010) baseline

monitoring report.

• The concentrations of dissolved and total calcium were slightly elevated in the

November 2012 monitoring round compared to previous results from this site.

SW100 (Tunakohoia Stream North Branch)

• The concentrations of calcium (dissolved and total), magnesium (dissolved and

total) and sulphate were higher than the range of results that were reported in

the PDP (2010) baseline monitoring report.

• The concentrations of dissolved and total magnesium and total iron were higher

than the range of results that were reported in the PDP (2010) baseline

monitoring report in the October and November 2012 monitoring rounds.

• The concentrations of most metals tested during the 2012 monitoring rounds

were generally within the range of results reported in the PDP (2010) baseline

monitoring report.

SW101 (Ruakaka Adits Tributary)

• The concentrations of most metals measured during the 2012 monitoring rounds

were within the range of results reported in the PDP (2010) baseline monitoring

report.




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4.0 Flow Monitoring Results

The key findings of the September, October and November 2012 Tunakohoia Stream flow

monitoring are summarised below on a site by site basis. Any increase or decrease in

water flow is less than 10-fold, unless otherwise stated. See Appendix B for result tables

for each monitoring location.


• The flow measured from this sampling site over the three 2012 monitoring

rounds was within the range of results reported in the PDP (2010) baseline

monitoring report, although the average flow has increased slightly.

SW5 (Adit 5 Outlet)

• The measured flow of water being discharged at this sampling site has

significantly decreased (approximately 10-fold) compared to the flow monitoring

results reported in the PDP (2010) baseline monitoring report.


• The measured flow of water from this sampling site was within the lower range of



• The flow measured from this sampling site over the three 2012 monitoring

rounds was at the slightly lower end of the range of results reported in the PDP

(2010) baseline monitoring report.


• The flow measured from this sampling site over the three monitoring rounds was


report.


• The flow measured from this sampling site over the three monitoring rounds was


report.

5.0 Quality Assurance/Quality Control

Quality Assurance and quality controls (QA/QC) samples (duplicates, field blanks and trips

blanks) were collected as part of each monitoring. The results of the QA/QC monitoring

undertaken as part of this project are presented in Appendix D. All QA/QC samples meet

the data quality objectives outlined in Table D-1 in Appendix D.




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6.0 Comparison of Results against ANZECC Guidelines

The water quality data was compared to ANZECC (2000) Contact Recreational Standards

where applicable. In terms of the remedial goals, these criteria are only of relevance for

the sites at the base of the slopes of Mt Te Aroha where recreational use is likely. See

Appendix B attached.

The ANZECC (2000) Contact Recreational Standards do not state if the results for

inorganic parameters should be compared against dissolved or total metal fractions.

Since the intention of these guidelines is to protect recreational users against either toxic

(via ingestion) and/or irritation to the skin or mucous membranes PDP believes that it is

appropriate to compare the ANZECC (2000) guideline values to both the dissolved and

total fraction.

The comparison of the 2012 monitoring round results at SW7 and SW8 against the

ANZECC (2000) Contact Recreational Standards is summarised below on a site by site

basis.


• The concentrations of dissolved and total cadmium and manganese were

measured above the ANZECC (2000) Contact Recreational Standards during all

three of the 2012 monitoring rounds and all previous baseline sampling rounds.

• The concentration of total aluminium was measured during one of the 2012

monitoring rounds to be above the ANZECC (2000) Contact Recreational

Standards. Total aluminium was also measured above the ANZECC (2000)

Contact Recreational Standards in eight of ten baseline sampling rounds.


• No metal concentrations were measured above the ANZECC (2000) Contact

Recreational Standards during any of the 2012 monitoring rounds, or in any of

the baseline sampling rounds.

7.0 Assessment of the Mass Loads of Contaminants at Each of

the Monitoring Locations

To provide assessment of contaminant concentrations measured during sampling, mass

loads of the following contaminants were calculated:

• Dissolved arsenic

• Total recoverable arsenic

• Dissolved cadmium

• Total recoverable cadmium

• Dissolved copper

• Total recoverable copper




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• Dissolved iron

• Total recoverable iron

• Dissolved lead

• Total recoverable lead

• Dissolved zinc

• Total recoverable zinc.

Mass load is defined (for the purposes of this report) as the quantity of contaminant

discharged passed a point of interest (stream transect) over a given time interval. Mass

load results calculated for this report are in units of (g s-1

). Mass load calculations for

sites; SW03, SW05, SW07, SW100 and SW101 are provided in Appendix C.

An elevated mass load can result because of two reasons, these are:

• An increased quantity of contaminant being discharged, but with no equ ivalent

increase in stream flow; and

• A decrease in stream flow, but with no equivalent decrease of contaminant

concentration.

Conversely, a reduction of mass load can result due to the inverse of the reasons

provided above.

Mass loads of contaminants measured prior to 2011 were compared with monitoring

results obtained during the 2012 monitoring period for sites SW03, SW05, SW07,

SW100, and SW101. A summary of changes in measurements are provided below on a

site by site basis.


• Overall, the mass load of dissolved cadmium, copper, iron, lead and zinc have

increased in comparison to the range of results reported in the PDP (2010)

baseline monitoring report during the first monitoring round (September 2012).

However during the second and third monitoring rounds (October and November

2012) the mass load of dissolved and total metals decreased significantly and

were within the upper range of the mass discharge of metals reported in the PDP

(2010) baseline monitoring report.

SW05 (Adit 5 Outlet)

• Overall, the mass loads of cadmium, copper, lead and zinc were similar to those

reported in 2011 monitoring report (PDP, 2012) and lower than the range of


• The mass loads of arsenic (dissolved and total) were higher (more than one order

of magnitude) than those reported in 2011 monitoring report (PDP, 2012) but


report.




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• The mass load of dissolved iron being discharged from SW5 was higher (more

than one order of magnitude) than those reported in 2011 monitoring report

(PDP, 2012). The mass discharge of dissolved iron from SW5 is between 5 to

10 times higher than the range of results reported in the PDP (2010) baseline

monitoring report.

SW07 (Tunakohoia Stream North Branch, Downstream of SW100 and SW15)

• Overall, the mass loads of dissolved arsenic, cadmium, copper, iron, lead and

zinc were similar to those reported in 2011 (PDP 2012). The mass discharge of

total lead is slightly lower than the range reported in the 2011 monitoring report

(PDP 2012). The mass load of contaminants at this monitoring site appears to

be within the upper end of the range reported in the PDP (2010) baseline

monitoring report.


• Overall, the mass load of arsenic, cadmium, copper, lead and zinc have not

significantly changed at this site in comparison to the range of results reported in



• Overall, the mass load of arsenic, cadmium, copper, lead and zinc have not

significantly changed at this site in comparison to the range of results reported in


8.0 Conclusions

Three rounds of water quality sampling were undertaken by PDP in September, October

and November 2012, to establish if the water quality of the water resources within the

Tunakohoia stream had changed during the on-going rehabilitation of the underground

mine site. In order to assess any changes in the water quality, the laboratory results were

compared to the results reported in the PDP (2010) baseline monitoring report and

additional data supplied by WRC (2 July, 19 August and 23 October 2009). Also, the

results were assessed against ANZECC (2000) Contact Recreational Standards for

recreational use of the water resources.

In the water being discharged from Adit 4 (monitoring site SW3) there has been a

significant decrease in the concentration and mass loads of dissolved and total cadmium,

copper, iron, lead and zinc during the second and third monitoring rounds.

Water quality measurements undertaken on the discharge from Adit 5 (monitoring site

SW5) have shown that alkalinity and concentrations of dissolved and total calcium, iron,

magnesium, manganese and sulphate have been increasing over the 2011-2012

monitoring period. The concentration of these parameters is now significantly elevated

(between 2.5 and 4.5 fold increase in these parameters) above the baseline levels

reported by PDP in 2010. However, the concentrations of other dissolved metals remain

P A T T L E D E L A M O R E P A R T N E R S L T D 1 0



A02277608R001.doc

similar to (i.e. zinc) or lower than (i.e. cadmium, copper and lead) baseline monitoring

results.

The mass discharge of dissolved iron from SW5 is between 5 to 10 times higher than the

range of results reported in the PDP (2010) baseline monitoring report.

The concentration and mass discharge of other metals monitored at SW5 remain similar

to 2011 levels and lower than baseline levels reported by PDP in 2010.

At SW100 (Tunakohoia stream, downstream of SW3 and SW5) the concentration of

calcium (dissolved and total), magnesium (dissolved and total) and sulphate were higher

than the range of results that were reported in the PDP (2010) baseline monitoring

report.

At all other monitoring locations there has been no significant change in the

concentrations or mass load of the contaminants.

Laboratory results reported metal concentrations above the ANZECC (2000) Contact

Recreational Standards at all of the 2012 monitoring round sampling sites, with the

exception of site SW8.

The stream flow at each of the water quality sample locations was recorded as part of the

2012 monitoring rounds. The flow measured from SW3, SW7, SW8, SW100 and SW101

over the 2012 monitoring rounds was within the range of results reported in the PDP

(2010) baseline monitoring report. The flow measured from SW5 has significantly

decreased (approximately 10-fold) compared to the flow monitoring results reported in

the PDP (2010) baseline monitoring report, but was similar to the flow monitoring results

report in the 2011 monitoring report (PDP, 2012). The monitoring at SW15 has stopped

as this discharge has been eliminated as part of the remedial works at the tailings dam.

P A T T L E D E L A M O R E P A R T N E R S L T D 1 1



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9.0 References

ANZECC and ARMICANZ, 2000. Australia and New Zealand guidelines for fresh and

marine water quality, Volume 1, The Guidelines. Australian and New Zealand

Environment and Conservation Council, Agriculture and Resource Management

Council of Australia and New Zealand, Canberra.

APHA/AWWA/WEF, 2005. Standard methods for the examination of water and wastewater.

21st Edition. American Public Health Association, American Waste and Wastewater

Association, Water environment federation.

Australian / New Zealand Standard AS/NZS 5667.1 1998. Water quality - Sampling -

Guidance on the design of sampling programs, sampling techniques and the

preservation and handling of samples.

Australian / New Zealand Standard AS/NZS 5667.6 1998. Water quality - Guidance on

sampling of rivers and streams.

Ministry for the Environment, 2011: Contaminated Land Management Guidelines No. 5:

Soil Investigation and Analysis of Soils. Ministry for the Environment, Wellington.

PDP, 2010. Tui Remedial Works: Baseline Monitoring Report. Prepared for Environment

Waikato, 2010.

PDP, 2012. Tui Mine Monitoring Report 2011 – Water Quality Monitoring (After Alkalinity

Injection). Prepared for Environment Waikato, January 2012.

Tonkin & Taylor, 2012 Personal Communications to PDP received 31 October 2012.


Appe

ndix A

Fig

ure

SW8

SW15

SW101

SOUTH BRANCH OF THE TUNAKOHOIA STREAM

NORTH BRANCH OF THE TUNAKOHOIA STREAM

TUI STREAM

T U I

R O

A D

Tailings DamTui Mine Former Process Area

Town Supply Inlet

Waste Rock Piles

Waste Rock Piles

SW7

SW3

SW5

SW100

Figure 1 : TUI MINE MONITORING LOCATIONS MAP

SITE LOCATION

Site

Water Quality Monitoring Site

Old Mine Road

Road

Stream

KEY

SW7

APPROX. SCALE 1:5,000 (A3)

0 200m100

Te Aroha

SH

26


Appe

ndix B

Table

s

Tui Mine Monitoring Report 2012 - Water Quality Monitoring (After Alkalinity Injection for the Rehabilitation of Tui Mine)

A02277608_Report Tables.xls PATTLE DELAMORE PARTNERS LTD

Sample Location ANZECC GuidelinesSample No. ADIT4 ADIT4 ADIT4 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 Contact Recreational Minimum MaximumSampled By Sharplin Sharplin Sharplin PDP PDP PDP PDP PDP PDP PDP PDP PDP PDPSampling date 30/01/07 3/05/07 27/07/07 17/09/09 8/10/09 17/11/09 6/09/11 11/10/11 8/11/11 15/08/12 6/09/12 17/10/12 15/11/12Laboratory Number 728224.1 734195.1 744474.1 930978.1 943005.1 951502.1 1036699.3 1044859.1 1060297.1 1070611.6Flow Rate L/s 0.253 0.81 0.573 - - - 0.6875 3.13 1.40 1.70 1.50 0.80 0.41Flow Rate m3/sec 0.0003 0.0008 0.0006 0.0002 0.0021 0.0004 0.0007 0.0031 0.0033 0.0017 0.0015 0.0008 0.0004Field:Temperature (ºC) 11.3 11 10.6 10.36 10.17 10.97 10.23 9.87 10.22 12.32 12.9 10.5 11 15-33 10.17 11.3pH pH units 6.79 6.92 7.05 7.84 6.76 7.42 6.84 6.66 6.81 6.8 7.2 7.4 7.18 5.0-9.0 6.76 7.84Conductivity mS/m 89.8 74.4 68.4 92.09 65.08 10.8 41.0 16.5 28.1 14.5 10.5 11.5 26.1 NGV 10.8 92.09ORP mV - - - 176 301 258 270 212 280 -9 212 216.6 201 NGV 176 301Dissolved Oxygen mg/L 8.47 7.6 - 10.64 10.15 9.1 9.91 11.08 9.32 8.38 9.11 9.19 9.27 >6.5 7.6 10.64Turbidity NTU - - - <5 <5 0.9 17.1 2.3 4.0 <5 <5 8.7 10.0 NGV 0.9 0.9Laboratory:pH pH units - - - 6.7 7.8 6.7 6.4 6.8 6.9 6 6.6 7.0 7.4 5.0-9.0 6.6 7.8Conductivity mS/m - - - 11.7 8.6 11.2 34.5 15.4 35.1 24.5 34.2 15.2 25.1 NGV 8.6 88Total Suspended Solids g/m3 - - - < 3.0 < 3.0 < 3.0 7 < 3 6 - 6 <3 3 NGV 5 5Total Dissolved Silica g/m3 - - - 13 12 12 11.5 8 10.3 - 10.2 9.7 10.9 NGV 12 13

Anions meq - - - 1.1 0.78 1.2 3.6 1.51 3.6 2.5 3.6 1.53 3.2 NGV 0.78 1.2Cations meq - - - 1.1 0.77 1 4.3 1.46 3.8 2.3 3.5 1.55 2.6 NGV 0.77 1.1Alkalinity g/m3 as CaCO3 11 17 8 17 11 16 23 16.9 16.2 10 23 26 58 NGV 8 23Acidity g/m3 as CaCO3 - - - - - - - - - 54 -Bicarbonate g/m3 at 25°C 18.8 26.3 12.2 21 14 19 28 21 19.7 12.2 28 32 71 NGV 12.2 26.3Total Hardness g/m3 as CaCO3 - - - 36 23 33 107 40 87 47 88 54 101 500 23 36Calcium g/m3 11 8.72 7 10 6.7 9.9 28 11.2 23 #1 12.5 24 16.2 #1 31 #1 NGV 5.71 11.9Magnesium g/m3 3.08 1.84 1.5 2.4 1.5 2.1 8.7 #1 3 7.1 #1 3.9 6.6 #1 3.3 5.6 #1 NGV 1.42 3.08Potassium g/m3 0.5 0.42 0.4 0.51 0.41 0.47 0.58 #1 0.45 0.57 #1 <1.0 0.55 #1 0.41 0.57 #1 NGV 0.4 0.61Sodium g/m3 7.61 7.4 7 7.9 6.8 7.3 7.3 #1 6.4 7.5 #1 6.1 6.8 6.1 #1 7.3 #1 300 6.8 7.9Chloride g/m3 10.3 9.72 9 10 10 9.9 9.3 9.2 9.8 8.3 9.0 8.1 8.0 400 9 10.3Nitrite-N g/m3 - - - < 0.0020 < 0.0020 < 0.0020 < 0.002 < 0.002 < 0.002 <0.002 <0.002 < 0.002 < 0.002 1 0 0Nitrate-N g/m3 - - - 0.14 0.17 0.16 0.127 0.38 0.146 0.194 0.145 0.147 0.038 10 0.122 0.17Nitrate-N+Nitrite-N g/m3 - - - 0.14 0.17 0.16 0.127 0.38 0.146 0.194 0.146 0.147 0.038 NGV 0.14 0.17Sulphate g/m3 26.4 17.6 12 20 12 28 136 42 146 96 139 37 88 400 12 28Metals:Aluminium Dissolved g/m3 - - - < 0.0032 0.016 < 0.0032 0.006 0.052 0.007 - 0.006 0.021 0.008 0.2 <0.0032 0.016Aluminium Total Recoverable g/m3 - - - 0.0072 0.0046 < 0.0032 0.59 0.159 0.48 - 0.33 0.069 0.064 0.2 <0.0032 0.0072Antimony Dissolved g/m3 - - - < 0.00021 < 0.00021 < 0.00021 0.0004 < 0.0002 0.0003 - 0.0005 0.0003 0.0004 NGV < 0.00021 < 0.00021Antimony Total Recoverable g/m3 - - - < 0.00021 < 0.00021 < 0.00021 0.00046 < 0.00021 0.00053 - 0.00055 0.00031 0.00053 NGV < 0.00021 < 0.00021Arsenic Dissolved g/m3 <d.l. <d.l. <d.l. < 0.0011 < 0.0011 < 0.0011 < 0.0010 < 0.0010 < 0.0010 - < 0.0010 < 0.0010 < 0.0010 0.05 < 0.0011 < 0.0011Arsenic Total Recoverable g/m3 <d.l. 0.001 <d.l. < 0.0011 < 0.0011 < 0.0011 0.0015 < 0.0011 0.0015 - <0.0053 < 0.0011 0.0014 0.05 < 0.0011 < 0.0011Barium Dissolved g/m3 - - - 0.0068 0.0044 0.0063 0.028 0.0174 0.024 - 0.027 #1 0.0182 0.028 1 0.0044 0.0068Barium Total Recoverable g/m3 - - - 0.0071 0.0047 0.0067 0.028 0.0177 0.024 - 0.024 #1 0.0187 0.028 1 0.0044 0.0071Beryllium Dissolved g/m3 - - - < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.00010 < 0.00010 - < 0.00010 < 0.00010 < 0.00010 NGV < 0.00011 < 0.00011Beryllium Total Recoverable g/m3 - - - < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 - < 0.00011 < 0.00011 < 0.00011 NGV < 0.00011 < 0.00011Boron Dissolved g/m3 - - - 0.012 0.011 0.012 0.011 #1 0.01 0.0110 - 0.010 0.009 0.011 #1 1 0.011 0.012Boron Total Recoverable g/m3 - - - 0.011 0.0099 0.011 0.0094 #1 0.0102 0.011 - 0.0103 0.0095 0.0104 #1 1 0.0099 0.011Cadmium Dissolved g/m3 0.005 0.003 0.0025 0.0036 0.0016 0.0038 0.42 0.078 0.37 0.25 0.36 #1 0.040 0.053 0.005 0.0016 0.0103Cadmium Total Recoverable g/m3 0.005 0.004 0.00251 0.0038 0.0015 0.004 0.42 0.084 0.37 - 0.31 #1 0.043 0.053 0.005 0.0015 0.0106Calcium Dissolved g/m3 - - - 9.8 6.7 9.9 28 11.2 23 #1 12.5 24 16.2 #1 31 #1 NGV 5.71 9.9Calcium Total Recoverable g/m3 - - - 9.7 6.6 9.7 30 11.8 22 #1 - 24 14.7 #1 30 #1 NGV 6.6 9.7Chromium Dissolved g/m3 - - - < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 - < 0.0005 < 0.0005 < 0.0005 0.05 <0.00053 <0.00053Chromium Total Recoverable g/m3 - - - < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 - < 0.00053 < 0.00053 < 0.00053 0.05 <0.00053 <0.00053Copper Dissolved g/m3 0.004 0.001 0.00089 0.0019 0.00096 0.0013 0.66 0.176 0.77 - 0.58 0.079 0.067 1 0.00089 0.0059Copper Total Recoverable g/m3 0.004 0.038 0.00107 0.0029 0.0012 0.016 1.06 0.25 1.02 - 0.91 0.149 0.175 1 0.00107 0.038Iron Dissolved g/m3 0.016 0.016 0.00446 < 0.021 < 0.021 < 0.021 0.02 0.13 0.15 <0.4 0.06 0.06 <0.02 0.3 < 0.02 0.016Iron Total Recoverable g/m3 0.029 0.417 0.526 < 0.021 < 0.021 < 0.021 1.19 0.41 1.47 1.46 1.25 0.57 0.91 0.3 < 0.021 1.27Lanthanum Dissolved g/m4 - - - - - - 0.00041 0.00037 0.00043 - 0.00036 <0.00010 <0.00010 NGV - -Lanthanum Total Recoverable g/m5 - - - - - - 0.00061 0.00047 0.00055 - 0.00047 0.00013 <0.00011 NGV - -Lead Dissolved g/m3 <d.l. <d.l. <d.l. 0.00058 0.00049 0.00093 0.0177 0.104 0.025 - 0.0157 0.033 0.0075 0.05 0.00049 0.0013Lead Total Recoverable g/m3 0.003 0.008 0.00553 0.0013 0.0008 0.0011 0.157 0.169 0.185 - 0.165 0.163 0.126 0.05 0.0008 0.0697Lithium Dissolved g/m3 - - - 0.002 0.0017 0.0019 0.0078 #1 0.0022 0.0067 #1 - 0.0057 0.0027 #1 0.0051 #1 NGV 0.0017 0.002Lithium Total Recoverable g/m3 - - - 0.0021 0.0016 0.0019 0.0075 0.0027 0.0060 #1 - 0.0058 0.0026 #1 0.0048 #1 NGV 0.0016 0.0021Magnesium Dissolved g/m3 - - - 2.3 1.6 2.2 8.7 #1 3 7.1 #1 3.9 6.6 #1 3.3 #1 5.6 #1 NGV 1.42 2.3Magnesium Total Recoverable g/m3 - - - 2.3 1.5 2 8.4 3.1 6.6 #1 - 6.4 #1 3.0 #1 5.5 #1 NGV 1.5 2.3Manganese Dissolved g/m3 0.003 0.0006 0.00041 0.0024 < 0.00053 0.00086 0.94 0.186 0.84 #1 0.44 0.73 #1 0.170 #1 0.31 0.1 <0.00053 0.003Manganese Total Recoverable g/m3 0.003 0.006 0.00077 0.0024 0.0007 0.00077 0.96 0.21 0.76 #1 - 0.70 #1 0.160 #1 0.31 0.1 0.0007 0.006Mercury Dissolved g/m3 - - - < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 - < 0.00008 < 0.00008 < 0.00008 0.001 < 0.00008 < 0.00008Mercury Total Recoverable g/m3 - - - < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 - < 0.00008 < 0.00008 < 0.00008 0.001 < 0.00008 < 0.00008Molybdenum Dissolved g/m3 - - - < 0.00021 < 0.00021 < 0.00021 < 0.0002 < 0.0002 < 0.0002 - < 0.0002 < 0.0002 0.0003 NGV < 0.00021 < 0.00021Molybdenum Total Recoverable g/m3 - - - < 0.00021 < 0.00021 < 0.00021 0.00025 < 0.00021 < 0.00021 - < 0.00021 0.00021 0.00047 NGV < 0.00021 < 0.00021Nickel Dissolved g/m3 - - - < 0.00053 < 0.00053 < 0.00053 0.0097 0.0028 0.0084 - 0.0083 #1 0.0011 0.0017 #1 0.1 < 0.0005 < 0.00053Nickel Total Recoverable g/m3 - - - < 0.00053 < 0.00053 < 0.00053 0.01 0.0026 0.0084 - 0.0080 #1 0.00139 0.00142 #1 0.1 < 0.0005 < 0.00053Potassium Dissolved g/m3 - - - 0.46 0.41 0.43 0.58 #1 0.45 0.57 #1 - 0.55 #1 0.41 0.57 #1 NGV 0.41 0.46Potassium Total Recoverable g/m3 - - - 0.47 0.41 0.44 0.55 0.47 0.49 #1 - 0.54 #1 0.42 0.55 #1 NGV 0.41 0.47Selenium Dissolved g/m3 - - - < 0.0011 < 0.0011 < 0.0011 0.003 #1 < 0.0010 0.002 - <0.005 < 0.0010 < 0.0010 0.01 < 0.0011 < 0.0011Selenium Total Recoverable g/m3 - - - < 0.0011 < 0.0011 < 0.0011 0.0029 #1 < 0.0011 0.0023 - 0.0055 #2 < 0.0011 < 0.0011 0.01 < 0.0011 < 0.0011Silver Dissolved g/m3 - - - < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.00010 < 0.00010 - < 0.00010 < 0.00010 < 0.00010 0.05 < 0.0011 < 0.0011Silver Total Recoverable g/m3 - - - < 0.00011 < 0.00011 0.0047 < 0.00011 < 0.00011 < 0.00011 - < 0.00011 < 0.00011 < 0.00011 0.05 <0.0011 0.0047Sodium Dissolved g/m3 - - - 7.2 6.6 7.3 7.3 #1 6.4 7.5 #1 - 6.8 6.1 #1 7.3 #1 300 6.6 7.3Sodium Total Recoverable g/m3 - - - 7.2 6.3 7.5 6.9 6.6 6.6 #1 - 7.1 6.0 #1 6.8 #1 300 6.3 7.5Tin Dissolved g/m3 - - - < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 - < 0.0005 < 0.0005 < 0.0005 NGV < 0.00053 < 0.00053Tin Total Recoverable g/m3 - - - < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 - < 0.00053 <0.00053 <0.00053 NGV < 0.00053 < 0.00053Uranium Dissolved g/m3 - - - < 0.000021 < 0.000021 < 0.000021 < 0.00002 < 0.00002 < 0.00002 - < 0.00002 < 0.00002 < 0.00002 NGV < 0.000021 < 0.000021Uranium Total Recoverable g/m3 - - - < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 - < 0.000021 < 0.000021 < 0.000021 NGV < 0.000021 < 0.000021Zinc Dissolved g/m3 0.595 0.306 0.18499 0.41 0.18 0.43 58 #1 11.1 53 #1 33 45 #1 5.9 #1 7.4 #1 5 0.18 1.26Zinc Total Recoverable g/m3 0.572 0.376 0.18564 0.39 0.18 0.42 54 11.6 47 #1 - 44 #1 5.6 #1 7.0 #1 5 0.18 1.2

Notes:"-" Parameter not measured

#2 Result may be incorrect due to analytical interences caused by high zinc resultsNGV: No guideline value

Value exceeds ANZECC Guideline values

Baseline DataTable B1: Water Quality Results for Tui Mine Baseline Monitoring at SW3

#1 It has been noted that the result for the dissolved fraction was greater than that for the total fraction, but within ana

Level 4 Adit (SW3)



Sample Location ANZECC GuidelinesSample No. O4 A810 A964 SW5 SW5 SW5 SW5 SW5 SW5 SW5 SW5 SW5 SW5 SW5 Contact Recreational Minimum MaximumSampled By URS URS URS URS PDP 2009 PDP 2009 PDP 2009 PDP 2011 PDP 2011 PDP2011 PDP 2012 PDP2012 PDP2012 PDP2012Sampling date 6/12/00 19/12/00 22/02/01 15/12/01 17/09/09 8/10/09 17/11/09 6/09/11 11/10/2011 8/11/2011 15/8/2012 9/06/2012 17/10/2012 15/11/2012Laboratory Number 154963/4 155596/5 158764/5 728224.3 734195.3 744474.2 930978.2 943005.2 951502.2 1036699.3 1044859.4 1060297.2 1070611.7Flow Rate L/s - - - - - - - 0.65 0.68 0.81 1.7 1.8 2.09 2.62Flow rate m3/sec - - - 0.0100 0.0057 0.0102 0.0081 0.0007 0.0007 0.0008 0.0017 0.0018 0.0021 0.0026Field:Temperature (ºC) - - - - 14.35 12.92 13.98 12.15 12.27 12.14 12.32 13.1 13 13 15-33 12.92 15.47pH pH units - - - - 7.63 6.31 7.29 7.33 7.05 7.12 6.8 7.42 7.04 6.89 5.0-9.0 6.31 7.63Conductivity mS/m - - - - 56.29 46.55 61.4 123 132 111 145 199 195.4 217 NGV 45.5 61.4ORP mV - - - - 194 225 297 55 8 87 -9 30.6 -10.8 0.2 NGV 194 297Dissolved Oxygen mg/L - - - - 9.66 9.47 9.91 9.28 10.15 9.84 8.38 8.99 7.53 8.05 >6.5 8.62 9.91Turbidity NTU - - - - <5 <5 19 0.7 3.8 6.1 <5 5.1 39.7 38.5 NGV <5 19Laboratory:pH (pH units) pH units 7.1 7.3 6.9 7.3 7.2 7.1 7.3 7.5 7.6 7.5 6.9 6.9 7.2 6.9 5.0-9.0 6.9 7.3Conductivity mS/m 66.1 69 62.5 56 65.7 54.6 62.8 123.8 130.2 135.8 169.9 188.6 183.0 214 NGV 54.6 69Total Suspended Solids g/m3 15 16 13 13 14 14 14 8 7 9 - 26 28 32 NGV 11 16Total Dissolved Silica g/m3 - - - - 17 17 16 24 23 23 - 22 24 22 NGV 16 17Total Cyanide g/m3 - - - - - - - - - - - - - 0.05 - -

Anions meq - - - - 7.4 5.6 #2 7.5 15.3 15.9 17.3 24 27 27 29 NGV 5.6 7.5Cations meq - - - - 6.5 4.9 #2 6.8 15.1 16.6 16.7 24 26 26 30 NGV 4.9 6.8Alkalinity g/m3 as CaCO3 68 74 57 49 68 43 64 110 113 111 114 117 116 114 NGV 38 74Acidity g/m3 as CaCO3 37 -Bicarbonate g/m3 at 25°C - - - - 83 52 78 134 138 135 139.5 143 142 139 NGV 46 83Total Hardness g/m3 as CaCO3 - - - - 290 220 300 670 740 750 1080 1170 1190 1360 500 190 300Calcium g/m3 89.1 87.6 80.4 61.5 88 64 91 220 240 240 350 390 #1 380 450 #1 NGV 56 91Magnesium g/m3 17.7 17.9 16.4 11.9 18 14 18 33 35 34 50 50 55 #1 58 #1 NGV 11.9 18Potassium g/m3 1.26 1.23 1.21 1.3 0.93 1.3 1.41 #1 1.39 1.47 #1 1.70 1.82 1.68 1.8 NGV 0.84 1.4Sodium g/m3 14.8 14.4 14.6 - 15 12 15 20 #1 21 23 #1 25 26 27 32 #1 300 11 15Chloride g/m3 10.9 10.9 10.3 - 10 11 10 10.2 9.7 10.2 9.7 9.7 9.5 9.4 400 10 11Nitrite-N g/m3 - - - - < 0.0020 < 0.0020 < 0.0020 < 0.002 < 0.002 < 0.002 0.008 <0.002 <0.010 <0.02 1 < 0.0020 < 0.0020Nitrate-N g/m3 0.03 0.019 0.036 0.024 0.062 0.033 0.019 0.013 0.015 0.006 0.010 0.013 <0.02 10 0.019 0.068Nitrate-N+Nitrite-N g/m3 - - - - 0.025 0.063 0.033 0.02 0.014 0.017 0.014 0.012 0.013 <0.02 NGV 0.025 0.068Sulphate g/m3 280 281 268 235 270 210 280 620 640 710 1010 1160 1190 1270 400 210 292Metals:Aluminium Dissolved g/m3 - - - - 0.0046 0.0083 0.0044 < 0.003 < 0.006 < 0.003 <0.006 < 0.006 <0.015 0.2 0.0044 0.0083Aluminium Total Recoverable g/m3 - - - - 0.26 0.44 0.26 0.0038 0.0091 < 0.0063 - <0.0063 <0.0063 <0.016 0.2 0.26 0.44Antimony Dissolved g/m3 - - - - 0.00063 0.00037 0.00061 0.0002 < 0.0004 < 0.0002 - <0.0004 < 0.0004 <0.0010 NGV 0.00037 0.00063Antimony Total Recoverable g/m3 - - - - 0.001 0.00073 0.001 0.00023 < 0.00042 0.00031 - < 0.00042 < 0.00042 <0.0011 NGV 0.00073 0.001Arsenic Dissolved g/m3 0.001 0.001 0.001 - < 0.0021 < 0.0053 0.0014 0.0015 #1 0.002 0.002 - 0.009 0.009 0.012 0.05 < 0.0053 0.0015Arsenic Total Recoverable g/m3 0.005 0.006 0.005 - 0.0052 0.0038 0.0048 0.0014 #1 0.0026 < 0.0021 - 0.0143 0.0146 0.0174 0.05 0.003 0.006Barium Dissolved g/m3 - - - - 0.024 0.022 0.026 0.081 #1 0.082 0.079 #1 - 0.062 #1 0.052 0.053 1 <0.0010 0.026Barium Total Recoverable g/m3 - - - - 0.024 0.023 0.027 0.079 #1 0.083 0.074 #1 - 0.057 #1 0.056 0.054 1 0.023 0.027Beryllium Dissolved g/m3 - - - - < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.0002 < 0.00010 - <0.0002 < 0.0002 <0.0005 NGV <0.00011 <0.00011Beryllium Total Recoverable g/m3 - - - - < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00021 < 0.00011 - < 0.00021 < 0.00021 <0.00053 NGV <0.00011 <0.00011Boron Dissolved g/m3 - - - - 0.024 0.019 0.027 0.029 #1 0.029 0.030 - 0.040 0.048 0.05 1 0.014 0.027Boron Total Recoverable g/m3 - - - - 0.023 0.022 0.026 0.028 #1 0.04 0.033 - 0.050 0.049 0.053 1 0.022 0.026Cadmium Dissolved g/m3 0.107 0.103 0.189 0.133 0.13 0.19 0.12 0.045 0.054 0.045 - 0.023 0.024 0.030 #1 0.005 0.033 0.21Cadmium Total Recoverable g/m3 0.116 0.114 0.19 0.144 0.15 0.21 0.14 0.046 0.053 0.047 0.0141 0.023 0.028 0.029 #1 0.005 0.108 0.21Calcium Dissolved g/m3 - - - 61.5 86 58 84 220 240 240 - 390 #1 380 450 #1 NGV 58 86Calcium Total Recoverable g/m3 - - - - 85 63 89 220 250 240 350 380 410 440 #1 NGV 63 89Chromium Dissolved g/m3 - - - - < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0010 < 0.0005 - <0.0010 < 0.0010 <0.003 0.05 < 0.00053 < 0.00053Chromium Total Recoverable g/m3 - - - - < 0.00053 0.00058 < 0.00053 < 0.00053 0.0011 < 0.00053 - <0.0011 <0.0011 <0.0027 0.05 <0.00053 <0.00058Copper Dissolved g/m3 0.0064 0.0051 0.0162 0.0145 0.0085 0.043 0.0093 0.0023 < 0.0010 < 0.0005 - <0.0010 0.0019 #1 0.003 1 0.005 0.073Copper Total Recoverable g/m3 0.175 0.167 0.283 0.222 0.2 0.49 0.21 0.0025 < 0.0011 0.0052 - <0.0011 <0.0011 #1 0.0033 1 0.099 0.49Iron Dissolved g/m3 <0.02 <0.02 <0.02 <0.02 < 0.021 < 0.021 < 0.021 0.27 1.33 1.59 - 11.1 11.4 14.8 0.3 <0.002 0.457Iron Total Recoverable g/m3 4.22 4.85 3.47 3.03 4.7 4.4 4.2 1.35 2.6 2.9 9.9 13.7 14.7 18.8 0.3 2.46 4.85Lanthanum Dissolved g/m4 - - - - - - - < 0.00010 <0.0002 < 0.00010 12.5 <0.0002 <0.0002 <0.0005 NGV - -Lanthanum Total Recoverable g/m5 - - - - - - - < 0.00011 <0.00021 < 0.00011 - <0.00021 <0.00021 <0.00053 NGV - -Lead Dissolved g/m3 0.0013 0.0028 0.001 0.0009 0.00025 0.00077 0.00026 < 0.00010 < 0.0002 < 0.00010 - < 0.0002 <0.0002 <0.0005 0.05 0.00025 0.0028Lead Total Recoverable g/m3 0.0878 0.0771 0.0953 0.0979 0.072 0.15 0.077 0.0028 0.0036 0.0040 - 0.00136 0.00141 0.00175 0.05 0.03 0.15Lithium Dissolved g/m3 - - - - 0.02 0.015 0.021 0.03 0.033 0.036 #1 - 0.039 0.043 0.049 #1 NGV 0.015 0.021Lithium Total Recoverable g/m3 - - - - 0.019 0.015 0.02 0.03 0.043 0.032 #1 - 0.044 0.045 0.046 #1 NGV 0.015 0.02Magnesium Dissolved g/m3 - - - 11.9 18 13 18 33 35 34 - 50 55#1 58 #1 NGV 11.9 18Magnesium Total Recoverable g/m3 - - - - 18 14 19 31 37 34 50 54 52 #1 57 #1 NGV 14 19Manganese Dissolved g/m3 - - - - 1.9 1.5 1.7 3.1 4.2 4.3 #1 - 6.0 6.2 6.9 0.1 0.364 1.9Manganese Total Recoverable g/m3 - - - - 1.8 1.6 1.7 3.2 4.3 4.0 #1 5.5 6.2 6.2 7.2 0.1 1.388 1.8Mercury Dissolved g/m3 - - - - < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 - < 0.00008 < 0.00008 <0.00008 0.001 < 0.000080 < 0.000080Mercury Total Recoverable g/m3 - - - - < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 - < 0.00008 < 0.00008 <0.00008 0.001 < 0.000080 < 0.000080Molybdenum Dissolved g/m3 - - - - 0.00058 0.00027 0.00043 0.0007 0.0007 0.0006 - <0.0004 <0.0004 <0.0010 NGV 0.00027 0.00058Molybdenum Total Recoverable g/m3 - - - - 0.00059 0.00036 0.00046 0.00083 0.0007 0.00060 - <0.00042 <0.00042 <0.0011 NGV 0.00036 0.00059Nickel Dissolved g/m3 0.0223 0.0233 0.0212 0.0186 0.025 0.021 0.023 0.036 0.044 0.042 - 0.059 0.058 0.074 0.1 0.0186 0.025Nickel Total Recoverable g/m3 0.0215 0.0236 0.0217 0.0195 0.025 0.021 0.023 0.039 0.044 0.044 - 0.065 0.064 0.074 0.1 0.0195 0.025Potassium Dissolved g/m3 - - - - 1.1 0.85 1.2 1.41 #1 1.39 1.47 #1 - 1.82 1.68 1.8 NGV 0.85 1.2Potassium Total Recoverable g/m3 - - - - 1.1 0.94 1.1 1.36 #1 1.54 1.27 #1 - 1.88 1.85 1.85 NGV 0.94 1.1Selenium Dissolved g/m3 - - - - < 0.0021 < 0.0053 < 0.0011 < 0.0010 < 0.002 < 0.002 - <0.002 < 0.002 <0.005 0.01 < 0.0011 < 0.0053Selenium Total Recoverable g/m3 - - - - < 0.0021 0.0029 < 0.0021 < 0.0011 < 0.0021 < 0.0021 - < 0.0021 < 0.0021 <0.0053 0.01 < 0.0021 0.0029Silver Dissolved g/m3 - - - - < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.0002 < 0.00010 - <0.0002 <0.0002 <0.0005 0.05 <0.0001 <0.0002Silver Total Recoverable g/m3 - - - - < 0.00011 < 0.00011 0.0003 < 0.00011 < 0.00022 < 0.00011 - < 0.00022 <0.0011 #2 <0.00053 0.05 <0.0001 0.0003Sodium Dissolved g/m3 - - - - 13 11 15 20 #1 21 23 #1 - 26 27 32 #1 300 11 15Sodium Total Recoverable g/m3 - - - - 13 11 14 19.8 #1 23 20 #1 - 30 28 29 #1 300 11 14Tin Dissolved g/m3 - - - - < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0010 < 0.0005 - <0.0010 <0.0010 <0.003 NGV < 0.00053 < 0.00053Tin Total Recoverable g/m3 - - - - < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.0011 < 0.00053 - < 0.0011 < 0.0011 <0.0027 NGV < 0.00053 < 0.00053Uranium Dissolved g/m3 - - - - < 0.000021 < 0.000021 < 0.000021 0.00004 #1 < 0.00004 0.00003 - <0.000042 < 0.00004 <0.00010 NGV < 0.000021 < 0.000021Uranium Total Recoverable g/m3 - - - - < 0.000021 < 0.000021 < 0.000021 0.000028 #1 < 0.000042 0.000031 - < 0.000042 < 0.000042 <0.00011 NGV < 0.000021 < 0.000021Zinc Dissolved g/m3 15.9 15.9 23.7 17.4 20 27 19 18.7 21 18.4 - 14.3 15.0 17.9 5 14.6 30Zinc Total Recoverable g/m3 18.5 18.7 26.4 19.4 22 30 22 19.5 21 18.4 12.9 16.1 16.3 18.1 5 16.8 30

-Notes:"-" Parameter not measured#1 It has been noted that the result for the dissolved fraction was greater than that for the total fraction, but within analytical variation of the methods.#2 Anion/cation balanced outside DQOsNGV: No guideline value



Level 5 Adit (SW5)



Sample Location ANZECC GuidelinesSample No. TK2 TK2 SW7 SW7 SW7 SW7 SW7 SW7 SW7 SW7 SW7 Contact Recreational Minimum MaximumSampled By URS Sharplin Sharplin PDP 2009 PDP 2009 PDP 2009 PDP 2011 PDP 2011 PDP 2011 PDP 2012 PDP 2012 PDP 2012Sampling date 25/03/98 3/05/07 27/07/07 17/09/09 8/10/09 17/11/09 6/09/11 11/10/11 8/11/11 6/09/12 17/10/12 15/11/12Laboratory Number 728224.5 734195.5 744474.15 930978.3 943005.4 951502.3 1044859.2 1060297.3 1070611.1Flow Rate L/s - 53.4 27 - - - - - - - - -Flow rate m3/sec - 0.0534 0.0270 0.0179 0.1089 0.0198 0.0072 0.0471 0.0139 0.0392 0.0231 0.0131 0.0179 0.1089Field:Temperature (ºC) - 13.1 10.3 11.89 10.27 11.36 9.19 12.22 11.31 10.7 10.5 11.5 15-33 10.27 13.1pH pH units - 5.98 6.95 6.97 6.57 6.39 7.10 5.76 5.81 7.29 7.33 7.02 5.0-9.0 5.98 6.97Conductivity mS/m - 27.6 19.1 30.07 15.68 34.6 29.9 21.4 25.2 32.0 39.8 49.1 NGV 15.68 34.6ORP mV - - - 233 589 330 259 286 392 308 226.8 200.8 NGV 233 589Dissolved Oxygen mg/L - 10.1 8.55 10.77 11.08 10.45 11.92 12.14 11.15 10.91 9.39 11.59 >6.5 8.55 11.08Turbidity NTU - - - <5 <5 5.4 <5 2.7 <5 <5 <5 <5 NGV <5 5.4Laboratory:pH pH units 7.2 - - 7.3 7.4 7 7.5 7 6.8 7.1 6.9 6.8 5.0-9.0 6.8 7.4Conductivity mS/m 36.5 - - 36.7 20.8 35.8 30.4 20.9 31.2 31.5 40.1 49.9 NGV 20.8 47.8Total Suspended Solids g/m3 <3 - - < 3.0 < 3.0 < 3.0 < 3 4 < 3 <3 <3 <3 NGV <3 4Total Dissolved Silica g/m3 - - - - - - - - - - - - NGV - -Total Cyanide g/m3 - - - - - - - - - - - - 0.05 - -

Anions meq - - - - - - - - - - - - NGV - -Cations meq - - - - - - - - - - - - NGV - -Alkalinity g/m3 as CaCO3 24 - - - - - - - - - - - NGV 16 32Bicarbonate g/m3 at 25°C - 29.9 17.2 - - - - - - - - - NGV 17.2 29.9Total Hardness g/m3 as CaCO3 - - - - - - 107 72 113 118 154 230 500 - -Calcium g/m3 38.1 36.6 30 - - - - - - - - - NGV 20.8 51.7Magnesium g/m3 10.3 11 11 - - - - - - - - - NGV 6.4 14.2Potassium g/m3 1 0.91 0.6 - - - - - - - - - NGV 0.6 1.18Sodium g/m3 11.2 11.2 11 - - - - - - - - - 300 11 12.8Chloride g/m3 11 11.1 11 - - - - - - - - - 400 10.6 11.9Nitrite-N g/m3 - - - - - - - - - - - - 1 - -Nitrate-N g/m3 - - - - - - - - - - - - 10 0.013 0.099Nitrate-N+Nitrite-N g/m3 - - - - - - - - - - - - NGV - -Sulphate g/m3 133 133 102.72 - - - - - - - - - 400 80.6 189Metals;Aluminium Dissolved g/m3 - - - 0.16 0.084 0.055 0.05 0.189 0.110 0.087 0.082 0.080 0.2 0.055 0.16Aluminium Total Recoverable g/m3 - - - 0.38 0.29 0.34 0.36 0.39 0.189 0.27 0.164 0.22 0.2 0.29 0.38Antimony Dissolved g/m3 - - - 0.00022 < 0.00021 0.00074 < 0.0002 < 0.0002 0.0002 < 0.0002 < 0.0002 0.0002 NGV < 0.00021 0.00074Antimony Total Recoverable g/m3 - - - 0.00027 0.00027 0.0013 < 0.00021 0.00024 0.00025 <0.00021 <0.00021 0.00024 NGV 0.00027 0.0013Arsenic Dissolved g/m3 - <d.l. 0.000676 < 0.0011 < 0.0011 < 0.0011 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010 <0.0010 0.05 <0.001 0.000676Arsenic Total Recoverable g/m3 - <d.l. 0.00464 < 0.0011 0.0041 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 0.05 <0.001 0.00464Barium Dissolved g/m3 - - - 0.024 0.021 0.025 0.026 0.022 0.029 #1 0.026 #1 0.026 0.033 1 0.021 0.025Barium Total Recoverable g/m3 - - - 0.024 0.023 0.025 0.027 0.024 0.028 #1 0.025 #1 0.028 0.034 1 0.023 0.025Beryllium Dissolved g/m3 - - - < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 NGV < 0.00011 < 0.00011Beryllium Total Recoverable g/m3 - - - < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 NGV < 0.00011 < 0.00011Boron Dissolved g/m3 - - - 0.015 0.013 0.015 0.015 #1 0.012 0.013 0.013 0.016 0.019 #1 1 0.013 0.015Boron Total Recoverable g/m3 - - - 0.016 0.014 0.017 0.0129 #1 0.0148 0.0150 0.0149 0.0164 0.0167 #1 1 0.014 0.017Cadmium Dissolved g/m3 0.0522 0.027 0.045 0.046 0.028 0.049 0.035 0.029 0.042 #1 0.027 0.023 0.028 0.005 0.027 0.0639Cadmium Total Recoverable g/m3 - 0.027 0.0458 0.048 0.029 0.049 0.035 0.031 0.039 #1 0.027 0.025 0.028 0.005 0.027 0.0614Calcium Dissolved g/m3 - - - 36 18 36 27 19 30 #1 32 43 64 #1 NGV 18 36Calcium Total Recoverable g/m3 - - - 37 19 36 28 19.7 29 #1 33 44 60 #1 NGV 19 37Chromium Dissolved g/m3 - - - < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 0.05 < 0.00053 < 0.00053Chromium Total Recoverable g/m3 - - - < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 0.05 < 0.00053 < 0.00053Copper Dissolved g/m3 0.0123 0.008 0.0015 0.021 0.02 0.0099 0.0117 0.027 0.0139 0.0105 0.0073 0.0074 1 0.0015 0.021Copper Total Recoverable g/m3 - 0.02 0.06185 0.041 0.065 0.042 0.023 0.048 0.0190 0.0198 0.0104 0.0119 1 0.0176 0.0651Iron Dissolved g/m3 <0.05 0.02 0.03268 0.16 0.037 < 0.021 < 0.02 0.05 < 0.02 < 0.02 <0.02 <0.02 0.3 0.02 0.16Iron Total Recoverable g/m3 - 0.299 0.841 0.41 0.41 0.55 0.025 0.167 0.021 0.084 0.058 0.038 0.3 0.11 0.841Lanthanum Dissolved g/m4 - - - - - - 0.00081 0.00079 0.00065 0.00048 0.00042 0.00051 NGV - -Lanthanum Total Recoverable g/m5 - - - - - - 0.00129 0.00128 0.00081 0.00074 0.00064 0.00084 NGV - -Lead Dissolved g/m3 0.0077 0.003 0.00249 0.014 0.012 0.0036 0.0059 0.023 0.0117 0.0067 0.0040 0.0029 0.05 0.00249 0.014Lead Total Recoverable g/m3 - 0.01 0.02983 0.033 0.1 0.036 0.023 0.059 0.0184 0.022 0.0131 0.0127 0.05 0.01 0.1Lithium Dissolved g/m3 - - - 0.0095 0.0047 0.0092 0.0072 #1 0.0047 0.0064 0.0058 0.0066 0.0093 #1 NGV 0.0047 0.0095Lithium Total Recoverable g/m3 - - - 0.0097 0.005 0.0098 0.0070 #1 0.0057 0.0065 0.0065 0.0072 0.0079 #1 NGV 0.005 0.0098Magnesium Dissolved g/m3 - - - 11 5.5 10 9.8 6 9.0 9.0 11.2 16.0 #1 NGV 5.5 11Magnesium Total Recoverable g/m3 - - - 11 5.6 11 10 6 9.2 9.7 11.2 15.1 #1 NGV 5.6 11Manganese Dissolved g/m3 - 0.471 0.368 0.55 0.23 0.55 0.32 0.26 0.25 0.29 0.28 0.36 #1 0.1 0.23 0.55Manganese Total Recoverable g/m3 - 0.441 0.365 0.57 0.24 0.63 0.35 0.27 0.25 0.30 0.30 0.35 #1 0.1 0.24 0.63Mercury Dissolved g/m3 - - - < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 0.001 < 0.000080 < 0.000080Mercury Total Recoverable g/m3 - - - < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 0.001 < 0.000080 < 0.000080Molybdenum Dissolved g/m3 - - - < 0.00021 0.0045 < 0.00021 < 0.0002 < 0.0002 < 0.0002 < 0.0002 < 0.0002 0.0002 NGV < 0.00021 0.0045Molybdenum Total Recoverable g/m3 - - - < 0.00021 0.005 0.00023 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 0.00023 NGV < 0.00021 0.005Nickel Dissolved g/m3 - - - 0.011 0.0046 0.0094 0.0068 0.0053 0.0068 #1 0.0063 #1 0.0062 0.0078 0.1 0.0046 0.0123Nickel Total Recoverable g/m3 - - - 0.011 0.005 0.01 0.0073 0.0055 0.0066 #1 0.0062 #1 0.0072 0.0081 0.1 0.005 0.0126Potassium Dissolved g/m3 - - - 0.99 1.6 0.94 0.95 #1 0.87 0.92 #1 1.02 0.97 1.21 NGV 0.94 1.6Potassium Total Recoverable g/m3 - - - 1 1.8 1 0.93 #1 0.95 0.83 #1 1.05 1.09 1.21 NGV 1 1.8Selenium Dissolved g/m3 - - - < 0.0011 < 0.0011 < 0.0011 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010 0.01 < 0.0011 < 0.0011Selenium Total Recoverable g/m3 - - - < 0.0011 < 0.0011 0.0012 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 0.01 < 0.0011 0.0012Silver Dissolved g/m3 - - - < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 0.05 < 0.0011 < 0.0011Silver Total Recoverable g/m3 - - - < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 0.05 < 0.0011 < 0.0011Sodium Dissolved g/m3 - - - 11 9.5 12 11.7 #1 8.6 11.2 #1 10.5 11.3 14.7 #1 300 9.5 12Sodium Total Recoverable g/m3 - - - 11 9.6 12 11.1 #1 9.1 10.6 #1 11.4 11.5 13.9 #1 300 9.6 12Tin Dissolved g/m3 - - - < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 NGV < 0.00053 < 0.00053Tin Total Recoverable g/m3 - - - < 0.00053 < 0.00053 0.00057 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 NGV < 0.00053 0.00057Uranium Dissolved g/m3 - - - < 0.000021 < 0.000021 < 0.000021 < 0.00002 < 0.00002 < 0.00002 < 0.00002 < 0.00002 < 0.00002 NGV < 0.000021 < 0.000021Uranium Total Recoverable g/m3 - - - < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 NGV < 0.000021 < 0.000021Zinc Dissolved g/m3 5.29 6.02 6.155 6.6 3.9 6.8 5.2 #1 4.2 5.9 #1 4.0 3.3 4.0 #1 5 3.9 7.79Zinc Total Recoverable g/m3 - 6.31 6.314 7 4.1 7.2 4.9 #1 4.2 5.4 #1 4.0 3.6 3.8 #1 5 4.1 8.04

Notes:"-" Parameter not measured#1 It has been noted that the result for the dissolved fraction was greater than that for the total fraction, but within analytical variation of the methods.NGV: No guideline value



Tunakohoia N Branch, Downstream (SW7)



Sample Location ANZECC GuidelinesSample No. SW8 SW8 SW8 SW8 SW8 SW8 SW8 SW8 SW8 Contact Recreational Minimum MaximumSampled By PDP 2009 PDP 2009 PDP 2009 PDP 2011 PDP 2011 PDP 2011 PDP 2012 PDP 2012 PDP 2012Sampling date 17/09/09 8/10/09 17/11/09 6/09/11 11/10/11 8/11/11 6/09/12 17/10/12 15/11/12Laboratory Number 728224.7 734195.7 744474.16 930978.4 943005.5 951502.4 1044859.3 1060297.4 1070611.2Flow Rate L/s 14.9Flow rate m3/sec 0.0250 0.1237 0.0382 0.0149 0.1078 0.0301 0.0077 0.0070 0.0116 0.0250 0.1237Field:Temperature (ºC) 11.28 8.62 11.42 10.12 11.81 11.03 9.7 9.7 11 15-33 8.62 11.42pH pH units 7.3 7.93 6.06 7.63 6.11 6.35 7.26 7.02 6.63 5.0-9.0 6.06 7.93Conductivity mS/m 8.4 6 9 17.5 7.2 7.1 8.5 8.9 9.48 NGV 6 9ORP mV 242 796 350 216 195 304 202 234.6 216.3 NGV 242 796Dissolved Oxygen mg/L 10.7 11.42 12.4 10.37 13.74 11.48 11.9 9.74 11.57 >6.5 10.7 12.4Turbidity NTU <5 <5 1.6 <5 3.7 <5 2.0 <5 <5 NGV <5 1.6Laboratory:pH pH units 7.7 7.7 7.3 7.8 7.3 7.3 7.4 6.9 7.2 5.0-9.0 6.8 7.7Conductivity mS/m 10.4 8.3 9.2 10.2 6.9 8.9 8.4 8.7 10.6 NGV 8.3 10.9Total Suspended Solids g/m3 < 3.0 < 3.0 < 3.0 < 3 < 3 < 3 <3 <3 <3 NGV <3 <3Total Dissolved Silica g/m3 - - - - - - - - - NGV - -Total Cyanide g/m3 - - - - - - - - - 0.05 - -

Anions meq - - - - - - - - - NGV - -Cations meq - - - - - - - - - NGV - -Alkalinity g/m3 as CaCO3 - - - - - - - - - NGV 12 18Bicarbonate g/m3 at 25°C - - - - - - - - - NGV - -Total Hardness g/m3 as CaCO3 - - - 28 17.9 24 23 23 31 500 - -Calcium g/m3 - - - - - - - - - NGV 5.07 7.38Magnesium g/m3 - - - - - - - - - NGV 1.89 2.66Potassium g/m3 - - - - - - - - - NGV 0.4 0.54Sodium g/m3 - - - - - - - - - 300 6.6 7.65Chloride g/m3 - - - - - - - - - 400 10.3 10.7Nitrite-N g/m3 - - - - - - - - - 1 - -Nitrate-N g/m3 - - - - - - - - - 10 - -Nitrate-N+Nitrite-N g/m3 - - - - - - - - - NGV - -Sulphate g/m3 - - - - - - - - - 400 10.7 17Metals:Aluminium Dissolved g/m3 0.016 0.051 0.03 0.024 0.103 0.031 0.039 0.020 0.020 0.2 0.016 0.051Aluminium Total Recoverable g/m3 0.03 0.074 0.048 0.028 0.183 0.054 0.078 0.053 0.047 0.2 0.03 0.074Antimony Dissolved g/m3 < 0.00021 < 0.00021 0.00027 < 0.0002 < 0.0002 < 0.0002 < 0.0002 < 0.0002 < 0.0002 NGV < 0.00021 0.00027Antimony Total Recoverable g/m3 < 0.00021 < 0.00021 0.00066 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 NGV < 0.00021 0.00066Arsenic Dissolved g/m3 < 0.0011 < 0.0011 < 0.0011 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010 0.05 <0.001 < 0.0011Arsenic Total Recoverable g/m3 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 0.05 <0.002 < 0.0012Barium Dissolved g/m3 0.0061 0.0054 0.0058 0.006 0.0051 0.0056 0.0052 0.0050 0.0066 1 0.0054 0.0061Barium Total Recoverable g/m3 0.0063 0.0063 0.0061 0.0061 0.0059 0.0057 0.0052 0.0059 0.0070 1 0.0061 0.0063Beryllium Dissolved g/m3 < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 NGV < 0.00011 < 0.00011Beryllium Total Recoverable g/m3 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 NGV < 0.00011 < 0.00011Boron Dissolved g/m3 0.0094 0.0095 0.01 0.010 #1 0.008 0.008 0.009 0.008 0.009 1 0.0094 0.01Boron Total Recoverable g/m3 0.0099 0.011 0.0087 0.0086 #1 0.0103 0.0105 0.0092 0.0096 0.0104 1 0.0087 0.011Cadmium Dissolved g/m3 < 0.000053 < 0.000053 < 0.000053 < 0.00005 < 0.00005 < 0.00005 < 0.00005 < 0.00005 < 0.00005 0.005 <0.00005 0.00024Cadmium Total Recoverable g/m3 < 0.000053 < 0.000053 < 0.000053 < 0.000053 < 0.000053 < 0.000053 < 0.000053 < 0.000053 < 0.000053 0.005 <0.00005 < 0.000053Calcium Dissolved g/m3 6.6 5.1 6.4 6.8 4.5 6.1 #1 5.4 5.9 7.9 #1 NGV 5.07 6.6Calcium Total Recoverable g/m3 6.9 5.5 6 7.3 4.9 5.9 #1 5.5 6.2 7.4 #1 NGV 5.5 6.9Chromium Dissolved g/m3 < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 0.05 < 0.000053 < 0.000053Chromium Total Recoverable g/m3 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 0.05 < 0.000053 < 0.000053Copper Dissolved g/m3 < 0.00053 < 0.00053 0.00063 < 0.0005 0.0008 < 0.0005 0.0006 < 0.0005 < 0.0005 1 < 0.00053 0.0011Copper Total Recoverable g/m3 < 0.00053 0.0006 0.00076 < 0.00053 0.00099 0.00065 0.00058 0.00056 < 0.00053 1 < 0.00053 0.0012Iron Dissolved g/m3 < 0.021 0.026 0.029 < 0.02 0.06 0.02 0.02 <0.02 <0.02 0.3 <0.00005 0.029Iron Total Recoverable g/m3 0.025 0.036 0.052 < 0.021 0.142 0.045 0.058 0.053 <0.21 0.3 <0.00005 0.06Lanthanum Dissolved g/m4 - - - < 0.00010 0.00021 < 0.00010 0.00012 < 0.00010 < 0.00010 NGV - -Lanthanum Total Recoverable g/m5 - - - < 0.00011 0.0003 0.00021 0.00014 0.00012 < 0.00011 NGV - -Lead Dissolved g/m3 < 0.00011 < 0.00011 < 0.00011 < 0.00010 0.00027 < 0.00010 < 0.00010 < 0.00010 < 0.00010 0.05 < 0.00011 0.0011Lead Total Recoverable g/m3 < 0.00011 0.00036 0.00041 < 0.00011 0.0008 0.00017 0.00016 0.00022 < 0.00011 0.05 < 0.00011 0.0021Lithium Dissolved g/m3 0.00051 0.0007 0.0005 0.0006 0.0005 0.0006 #1 0.0006 0.0006 0.0007 #1 NGV 0.0005 0.0007Lithium Total Recoverable g/m3 0.00059 0.00079 0.00059 0.00055 0.00086 0.00055 #1 0.00070 0.00067 0.00062 #1 NGV 0.00059 0.00079Magnesium Dissolved g/m3 2.6 2 2.3 2.6 1.6 2.2 2.2 2.1 2.8 #1 NGV 1.89 2.6Magnesium Total Recoverable g/m3 2.7 2.1 2 2.6 1.76 2.2 2.2 2.3 2.5 #1 NGV 2 2.7Manganese Dissolved g/m3 < 0.00053 0.0014 0.0011 0.0006 0.0018 0.0009 0.0026 0.0014 0.0012 0.1 < 0.00053 0.0014Manganese Total Recoverable g/m3 0.0014 0.0028 0.0019 0.00118 0.0065 0.0025 0.0042 0.0036 0.0035 0.1 0.0014 0.0028Mercury Dissolved g/m3 < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 0.001 < 0.000080 < 0.000080Mercury Total Recoverable g/m3 < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 0.001 < 0.000080 < 0.000080Molybdenum Dissolved g/m3 < 0.00021 < 0.00021 < 0.00021 < 0.0002 < 0.0002 < 0.0002 < 0.0002 < 0.0002 < 0.0002 NGV < 0.00021 < 0.00021Molybdenum Total Recoverable g/m3 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 NGV < 0.00021 < 0.00021Nickel Dissolved g/m3 < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 0.1 <0.00005 < 0.000053Nickel Total Recoverable g/m3 < 0.00053 < 0.00053 < 0.00053 < 0.00053 0.00056 < 0.00053 < 0.00053 < 0.00053 < 0.00053 0.1 <0.0005 0.0009Potassium Dissolved g/m3 0.51 0.45 0.46 0.47 #1 0.48 0.46 #1 0.55 0.42 0.55 NGV 0.45 0.51Potassium Total Recoverable g/m3 0.53 0.49 0.45 0.46 #1 0.53 0.42 #1 0.56 0.53 0.56 NGV 0.45 0.53Selenium Dissolved g/m3 < 0.0011 < 0.0011 < 0.0011 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010 0.01 < 0.0011 < 0.0011Selenium Total Recoverable g/m3 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 0.01 < 0.0011 < 0.0011Silver Dissolved g/m3 < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 0.05 < 0.00011 < 0.00011Silver Total Recoverable g/m3 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 0.05 < 0.00011 < 0.00011Sodium Dissolved g/m3 7.9 7 7.8 8.1 #1 5.9 7.2 #1 7.2 6.7 8.9 #1 300 7 7.9Sodium Total Recoverable g/m3 8.1 7.3 7.2 7.7 #1 6.3 6.8 #1 7.3 7.0 8.1 #1 300 7.2 8.1Tin Dissolved g/m3 < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 NGV < 0.00053 < 0.00053Tin Total Recoverable g/m3 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 NGV < 0.00053 < 0.00053Uranium Dissolved g/m3 < 0.000021 < 0.000021 < 0.000021 < 0.00002 < 0.00002 < 0.00002 < 0.00002 < 0.00002 < 0.00002 NGV < 0.000021 < 0.000021Uranium Total Recoverable g/m3 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 NGV < 0.000021 < 0.000021Zinc Dissolved g/m3 0.0017 0.0015 <0.0011 0.0016 #1 0.0019 < 0.0010 < 0.0010 < 0.0010 < 0.0010 5 0.0015 0.017Zinc Total Recoverable g/m3 0.0013 < 0.0011 0.0024 0.0014 #1 0.0063 0.0012 <0.0011 0.0045 <0.0011 5 0.001 0.01






Sample Location ANZECC GuidelinesSample No. SW100 SW100 SW100 SW100 SW100 SW100 SW100 SW100 SW100 SW100 Contact Recreational Minimum MaximumSampled By URS PDP 2009 PDP 2009 PDP 2009 PDP 2011 PDP 2011 PDP 2011 PDP2012 PDP2012 PDP2012Sampling date 19/08/09 17/09/09 8/10/09 17/11/09 6/09/11 11/10/11 8/11/11 6/09/12 17/10/12 15/11/12Laboratory Number 719259.2 728224.15 734195.15 744474.3 930978.6 943005.7 951502.5 1044859.5 1060297.5 1070611.4Flow Rate L/s -Flow rate m3/sec - 0.0021 0.0103 0.0017 0.0014 0.012 0.0046 0.0064 0.0095 0.0045 0.0017 0.0103Field: -Temperature (ºC) - 14.1 10.66 12.37 9.69 12.64 11.46 10.4 10.3 13 15-33 10.66 17.13pH pH units - 7.58 6.73 6.97 6.85 6.32 6.53 6.74 7.46 5.43 5.0-9.0 6.35 7.58Conductivity mS/m - 44.9 19.92 47 45.9 24.5 31.9 51.5 69.3 87.7 NGV 19.92 47ORP mV - 189 342 317 329 260 347 276 178.6 235.4 NGV 189 342Dissolved Oxygen mg/L - 9.91 10.39 10.82 12.82 14.24 11.70 10.58 9.53 10.15 >6.5 8 10.82Turbidity NTU - <5 <5 12.8 <5 1.4 <5 2.8 4.2 119.0 NGV <5 12.8Laboratory:pH pH units 7.6 7.2 6.9 7.6 7 6.9 7.0 7.2 6.9 7.1 5.0-9.0 6.35 7.6Conductivity mS/m 6.5 52.6 27.9 48.4 46.4 22.9 39.1 49.9 64.8 86.4 NGV 6.5 62.2Total Suspended Solids g/m3 <7.5 10 3.2 7.7 < 3 < 3 < 3 <3 <3 18 NGV 3.2 28Total Dissolved Silica g/m3 - 16 14 15 14 10.4 12.2 12.5 14.0 13.8 NGV 14 16Total Cyanide g/m3 - - - - - - - - 0.05 - -

Anions meq 0.54 5.8 2.9 5.6 5.1 2.2 3.8 5.4 7.7 10.0 NGV 0.54 5.8Cations meq 0.54 4.9 2.4 4.5 4.6 2.1 3.9 5.2 7.3 9.8 NGV 0.54 4.9Alkalinity g/m3 as CaCO3 4.9 49 20 44 32 14.4 21 29 32 36 NGV 4.9 62Bicarbonate g/m3 at 25°C 5.9 59 24 54 39 17.5 26 35 39 44 NGV 5.9 59Total Hardness g/m3 as CaCO3 11 220 96 200 184 79 155 220 320 440 500 11 220Calcium g/m3 2.5 64 27 59 8.4 23 47 #1 69 #1 100 135 #1 NGV 2.5 79Magnesium g/m3 1.2 13 7 12 3.1 #1 5 9.5 #1 12.2 17.7 #1 25 #1 NGV 1.2 16.5Potassium g/m3 0.29 1.1 0.67 0.99 0.71 #1 0.62 0.77 #1 0.78 0.82 1.14 NGV 0.29 1.18Sodium g/m3 6.6 13 9.5 12 8.7 #1 7.4 10.2 #1 11.3 13.5 #1 16.8 #1 300 6.6 13.8Chloride g/m3 10 11 11 10 9.8 9.3 9.7 9.1 9.2 9.3 400 10 11Nitrite-N g/m3 <0.002 0.004 < 0.0020 0.0052 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 <0.02 1 < 0.0020 0.0052Nitrate-N g/m3 0.055 0.049 0.13 0.061 0.127 0.4 0.171 0.171 0.111 0.066 10 0.036 0.13Nitrate-N+Nitrite-N g/m3 0.056 0.053 0.13 0.066 0.128 0.4 0.172 0.171 0.111 0.066 NGV 0.053 0.13Sulphate g/m3

7.1 220 110 210 200 75 150 220 320 430 400 7.1 252Metals:Aluminium Dissolved g/m3 0.091 < 0.0032 0.014 < 0.0032 0.007 0.025 0.011 0.004 <0.003 <0.003 0.2 < 0.0032 0.091Aluminium Total Recoverable g/m3 0.1 0.15 0.14 0.12 0.026 0.087 0.037 0.029 0.0118 0.065 0.2 0.1 0.15Antimony Dissolved g/m3 - 0.00068 < 0.00021 0.00049 0.0003 < 0.0002 0.0002 0.0002 #1 0.0002 0.0003 NGV < 0.00021 0.00068Antimony Total Recoverable g/m3 - 0.00096 0.0005 0.00076 0.00025 < 0.00021 0.00026 < 0.00021 #1 0.00022 0.00033 NGV 0.0005 0.00096Arsenic Dissolved g/m3 <0.001 < 0.0011 < 0.0021 < 0.0011 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010 <0.0010 0.05 <0.001 0.000516Arsenic Total Recoverable g/m3 <0.0011 0.0028 < 0.0021 0.002 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 0.0047 0.05 <0.0011 0.006Barium Dissolved g/m3 - 0.025 0.019 0.026 0.043 0.025 0.032 0.031 #1 0.030 0.038 1 0.019 0.026Barium Total Recoverable g/m3 - 0.026 0.021 0.027 0.044 0.026 0.032 0.029 #1 0.032 0.038 1 0.021 0.027Beryllium Dissolved g/m3 - < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 <0.00010 NGV < 0.00011 < 0.00011Beryllium Total Recoverable g/m3 - < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 <0.00011 NGV < 0.00011 < 0.00011Boron Dissolved g/m3 0.0072 0.018 0.014 0.024 0.014 0.011 0.014 #1 0.016 #1 0.020 #1 0.023 #1 1 0.0072 0.024Boron Total Recoverable g/m3 0.0055 0.021 0.015 0.019 0.0143 0.0138 0.0131 #1 0.0152 #1 0.0184 #1 0.020 #1 1 0.0055 0.021Cadmium Dissolved g/m3 <0.00005 0.098 0.077 0.088 0.102 0.045 0.082 0.059#1 0.032 0.035 0.005 <0.00005 0.122Cadmium Total Recoverable g/m3 <0.000053 0.11 0.083 0.099 0.102 0.044 0.082 0.057 #1 0.035 0.040 0.005 <0.000053 0.121Calcium Dissolved g/m3 - 62 26 61 55 23 47 #1 69 #1 100 135 #1 NGV 26 62Calcium Total Recoverable g/m3 - 65 27 60 57 25 44 #1 66 #1 101 127 #1 NGV 27 65Chromium Dissolved g/m3 <0.0005 < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 <0.0005 0.05 < 0.00053 < 0.00053Chromium Total Recoverable g/m3 <0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 0.05 < 0.00053 < 0.00053Copper Dissolved g/m3 <0.0005 0.0076 0.033 0.0085 0.048 0.044 0.052 0.0139 0.0046 0.0062 1 <0.0005 0.033Copper Total Recoverable g/m3 <0.00053 0.12 0.17 0.1 0.063 0.072 0.077 0.056 0.0188 0.038 1 <0.00053 0.198Iron Dissolved g/m3 0.077 < 0.021 0.033 < 0.021 < 0.02 0.03 < 0.02 <0.02 < 0.02 <0.02 0.3 <0.02 0.987Iron Total Recoverable g/m3 0.096 2.4 1.2 2.1 0.05 0.15 0.110 0.52 0.92 4.8 0.3 0.096 3.73Lanthanum Dissolved g/m4 - - - - 0.00022 0.00018 0.00015 <0.00010 <0.00010 <0.00010 NGV - -Lanthanum Total Recoverable g/m5 - - - - 0.00023 0.00027 0.00020 0.00017 0.00020 0.00057 NGV - -Lead Dissolved g/m3 0.00012 0.0042 0.005 0.0028 0.037 0.033 0.024 0.0041 0.00184 0.00135 0.05 0.00012 0.01Lead Total Recoverable g/m3 0.00013 0.054 0.075 0.053 0.051 0.066 0.046 0.044 0.039 0.088 0.05 0.00013 0.174Lithium Dissolved g/m3 - 0.014 0.0074 0.015 0.0087 #1 0.004 0.0075 #1 0.0078 0.0116 #1 0.0129 #1 NGV 0.0074 0.015Lithium Total Recoverable g/m3 - 0.016 0.0069 0.014 0.0083 #1 0.0051 0.0071 #1 0.0082 0.0103 #1 0.0120 #1 NGV 0.0069 0.016Magnesium Dissolved g/m3 - 13 6.5 14 11.5 #1 5 9.5 #1 12.2 17.7 #1 25 #1 NGV 6.5 14Magnesium Total Recoverable g/m3 - 15 6.9 12 11.4 #1 5.4 9.0 #1 13.1 16.6 #1 23 #1 NGV 6.9 15Manganese Dissolved g/m3 0.0064 1.1 0.49 1.1 0.28 0.102 0.31 #1 0.54 0.83 #1 0.97 #1 0.1 0.0064 1.1Manganese Total Recoverable g/m3 0.0061 1.2 0.52 1 0.3 0.116 0.30 #1 0.55 0.81 #1 0.92 #1 0.1 0.0061 1.2Mercury Dissolved g/m3 - < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 <0.00008 0.001 < 0.000080 < 0.000080Mercury Total Recoverable g/m3 - < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 <0.00008 0.001 < 0.000080 < 0.000080Molybdenum Dissolved g/m3 - 0.00033 < 0.00021 0.00032 < 0.0002 < 0.0002 < 0.0002 < 0.0002 < 0.0002 <0.0002 NGV < 0.00021 0.00033Molybdenum Total Recoverable g/m3 - 0.00033 < 0.00021 0.00031 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 <0.00021 NGV < 0.00021 0.00033Nickel Dissolved g/m3 <0.00050 0.02 0.0091 0.017 0.0116 #1 0.0051 0.0081 0.0104 0.0131 0.0167 #1 0.1 <0.00050 0.02Nickel Total Recoverable g/m3 <0.00053 0.019 0.0091 0.016 0.0115 #1 0.0052 0.0083 0.0106 0.0136 0.0164 #1 0.1 <0.00053 0.019Potassium Dissolved g/m3 - 0.92 0.62 0.97 0.80 #1 0.62 0.77 #1 0.78 0.82 1.14 NGV 0.62 0.97Potassium Total Recoverable g/m3 - 1 0.67 0.95 0.79 #1 0.71 0.71 #1 0.79 0.87 1.16 NGV 0.67 1Selenium Dissolved g/m3 - < 0.0021 < 0.0021 < 0.0011 0.001 < 0.0010 < 0.0010 < 0.0010 < 0.0010 <0.0010 0.01 < 0.0011 < 0.0021Selenium Total Recoverable g/m3 - < 0.0011 < 0.0021 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 <0.0011 0.01 < 0.0011 < 0.0021Silver Dissolved g/m3 - < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 0.05 < 0.00011 < 0.00011Silver Total Recoverable g/m3 - < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 <0.000011 0.05 < 0.00011 < 0.00011Sodium Dissolved g/m3 - 12 8.4 13 10.9 #1 7.4 10.2 #1 10.6 13.5 #1 16.8 #1 300 8.4 13Sodium Total Recoverable g/m3 - 12 8.7 13 10.5 #1 8 9.4 #1 11.3 12.9 #1 16.2 #1 300 8.7 13Tin Dissolved g/m3 - < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 <0.0005 NGV < 0.00053 < 0.00053Tin Total Recoverable g/m3 - < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 <0.00053 NGV < 0.00053 < 0.00053Uranium Dissolved g/m3 - < 0.000021 < 0.000021 < 0.000021 < 0.00002 < 0.00002 < 0.00002 < 0.00002 < 0.00002 <0.00002 NGV < 0.000021 < 0.000021Uranium Total Recoverable g/m3 - < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 <0.000021 NGV < 0.000021 < 0.000021Zinc Dissolved g/m3 0.0039 13 11 13 15.1 #1 6.5 #1 11.5 #1 8.7 5.8 6.3 5 0.0039 15.2Zinc Total Recoverable g/m3

0.0013 15 12 14 14.0 #1 6.1 #1 10.8 #1 8.8 6.1 7.5 5 0.0013 16.9




Tunakohoia N Branch, Access Road (SW100)



Sample Location ANZECC Guidelines Baseline DataSample No. SW101 SW101 SW101 SW101 SW101 SW101 SW101 SW101 SW101 SW101 Contact Recreational Minimum MaximumSampled By URS PDP 2009 PDP 2009 PDP 2009 PDP 2011 PDP 2011 PDP 2011 PDP2012 PDP2012 PDP2012Sampling date 19/08/2009 17/09/09 8/10/09 17/11/09 6/09/11 11/10/11 8/11/11 6/09/12 17/10/12 15/11/12Laboratory Number 719259.3 728224.17 734195.17 744474.4 930978.7 943005.6 951502.6 1044859.6 1060297.6 1070611.5Flow rate m3/sec - 0.0007 0.0251 0.0013 0.0005 0.0055 0.0018 0.0009 0.0014 0.0001 0.0007 0.0251Field:Temperature (ºC) - 11.57 9.55 10.73 9.34 11.37 10.40 9.90 9.70 10.60 15-33 9.55 11.57pH pH units - 7.23 6.57 6.57 6.72 6.15 6.91 7.58 7.5 7.24 5.0-9.0 6.57 7.23Conductivity mS/m - 10.5 7.05 11.3 11.9 11.0 9.1 10.0 11.2 11.5 NGV 7.05 11.3ORP mV - 207 379 306 297 259 341 302 206 176 NGV 207 379Dissolved Oxygen mg/L - 10.49 10.64 11.29 11.79 11.98 11.07 10.17 9.28 10.24 >6.5 10.49 11.29Turbidity NTU - <5 <5 0.5 <5 <5 <5 <5 <5 <5 NGV <5 0.5Laboratory:pH (pH units) pH units 7 7.2 7 7.5 7.2 6.9 7.1 7.3 6.5 7.1 5.0-9.0 7 7.5Conductivity mS/m 36.5 12.7 9.6 30 12.7 9.8 11.2 9.9 11.1 11.4 NGV 9.6 36.5Total Suspended Solids g/m3 <7.5 < 3.0 < 3.0 < 3.0 < 3 < 3 < 3 <3 <3 <3 NGV <3.0 <3.0Total Dissolved Silica g/m3 - 14 12 12 14.1 9.3 11.2 10.8 12 11.5 NGV 12 14Total Cyanide g/m3 - - - - - - - - - 0.05 - -

Anions meq 2.8 1.2 0.88 #2 1.2 1.27 0.95 1.06 0.94 1.03 1.05 NGV 0.88 2.8Cations meq 2.6 1.0 0.71 #2 0.98 1.13 0.89 1.01 0.90 0.91 1.05 NGV 0.71 2.6Alkalinity g/m3 as CaCO3 18 10 10 9.8 11 11.3 10.7 12.3 11.5 11.2 NGV 9.8 18Bicarbonate g/m3 at 25°C 22 12 12 12 13.4 13.8 13.0 15.0 14.0 13.6 NGV 12 22Total Hardness g/m3 as CaCO3 92 33 19 30 34 24 28 24 26 30 500 19 92Calcium g/m3 26 8.7 4.8 7.6 55 5.8 7.0 #1 6.2 #1 6.7 7.8 #1 NGV 4.8 26Magnesium g/m3 6.4 2.7 1.7 2.7 12.0 #1 2.2 2.5 #1 2.2 2.3 2.7 #1 NGV 1.7 6.4Potassium g/m3 0.65 0.73 0.54 0.72 0.82 0.74 0.74 #1 0.63 #1 0.55 0.81 #1 NGV 0.54 0.73Sodium g/m3 8.5 8.5 7.1 8.5 10.8 #1 7.2 8.4 #1 7.7 7.4 8.5 #1 300 7.1 8.5Chloride g/m3 10 12 12 12 10.7 10.7 11.3 10.2 10.1 9.6 400 12 12Nitrite-N g/m3 <0.002 < 0.0020 < 0.0020 < 0.0020 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 <0.002 1 < 0.0020 < 0.0020Nitrate-N g/m3 0.14 0.16 0.25 0.14 0.176 0.2 0.159 0.171 0.155 0.112 10 0.14 0.25Nitrate-N+Nitrite-N g/m3 0.15 0.16 0.25 0.14 0.176 0.2 0.159 0.172 0.155 0.113 NGV 0.14 0.25Sulphate g/m3 100 30 16 32 36 19.5 25 19.0 24 26 400 16 100Metals:Aluminium Dissolved g/m3 0.015 0.0053 0.012 0.0065 0.005 0.035 0.008 0.013 0.005 0.015 0.2 0.0053 0.015Aluminium Total Recoverable g/m3 0.14 0.013 0.018 0.008 0.0073 0.046 0.0102 0.0153 0.0067 0.0199 0.2 0.008 0.14Antimony Dissolved g/m3 - 0.00046 < 0.00021 0.00037 0.0004 0.0003 0.0003 0.0003 0.0003 0.0003 NGV < 0.00021 0.00046Antimony Total Recoverable g/m3 - 0.00051 0.00036 0.00047 0.00039 0.00027 0.00036 0.00028 0.00034 0.00030 NGV 0.00036 0.00051Arsenic Dissolved g/m3 <0.001 < 0.0011 < 0.0011 < 0.0011 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010 <0.0010 0.05 < 0.0011 < 0.0011Arsenic Total Recoverable g/m3 <0.0021 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 <0.0011 0.05 < 0.0021 < 0.0011Barium Dissolved g/m3 - 0.018 0.015 0.017 0.0184 0.0158 0.0176 0.0165 #1 0.0159 0.0166#1 1 0.015 0.018Barium Total Recoverable g/m3 - 0.019 0.015 0.018 0.02 0.0162 0.0176 0.0147 #1 0.0171 0.0163 #1 1 0.015 0.019Beryllium Dissolved g/m3 - < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 NGV < 0.00011 < 0.00011Beryllium Total Recoverable g/m3 - < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 NGV < 0.00011 < 0.00011Boron Dissolved g/m3 0.011 0.012 0.012 0.013 0.013 #1 0.012 0.012 0.011 #1 0.011 0.012 1 0.011 0.013Boron Total Recoverable g/m3 0.011 0.012 0.013 0.012 0.0101 #1 0.0138 0.0126 0.0110 #1 0.0117 0.0128 1 0.011 0.013Cadmium Dissolved g/m3 0.084 0.015 0.014 0.016 0.0175 #1 0.021 0.0185 #1 0.0153 #1 0.0150 0.0130 #1 0.005 0.014 0.084Cadmium Total Recoverable g/m3 0.087 0.016 0.014 0.017 0.0166 #1 0.02 0.0176 #1 0.0147 #1 0.0160 0.0119 #1 0.005 0.014 0.087Calcium Dissolved g/m3 - 8 5.6 7.6 8.4 5.8 7.0 #1 6.2 #1 6.7 7.8 #1 NGV 5.6 8Calcium Total Recoverable g/m3 - 8.2 5.5 7.3 8.5 5.8 6.7 #1 6.1 #1 7.1 7.4 #1 NGV 5.5 8.2Chromium Dissolved g/m3 <0.00050 < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 <0.0005 0.05 < 0.00053 < 0.00053Chromium Total Recoverable g/m3 <0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 <0.00053 0.05 < 0.00053 < 0.00053Copper Dissolved g/m3 0.041 0.0046 0.0073 0.0057 0.0049 0.0181 0.0074 0.0074 0.0051 0.0101 1 0.0046 0.041Copper Total Recoverable g/m3 0.19 0.0051 0.0073 0.0057 0.0053 0.0181 0.0079 0.0080 0.0053 0.0108 1 0.0051 0.19Iron Dissolved g/m3 0.03 < 0.021 < 0.021 < 0.021 < 0.02 < 0.02 < 0.02 < 0.020 < 0.02 <0.02 0.3 <0.021 0.03Iron Total Recoverable g/m3 1.1 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 < 0.021 <0.021 0.3 <0.021 1.1Lanthanum Dissolved g/m4 - - - < 0.00010 0.00012 < 0.00010 < 0.00010 < 0.00010 0.00013 NGV - -Lanthanum Total Recoverable g/m5 - - - < 0.00011 0.00014 < 0.00011 < 0.00011 < 0.00011 0.00014 NGV - -Lead Dissolved g/m3 0.0046 0.2 0.16 0.21 0.21 0.23 0.188 0.149 0.145 0.194 0.05 0.0046 0.21Lead Total Recoverable g/m3 0.073 0.23 0.17 0.23 0.21 0.23 0.192 0.153 0.161 0.195 0.05 0.073 0.23Lithium Dissolved g/m3 - 0.0022 0.0015 0.0022 #1 0.0024 #1 0.0015 0.0023 #1 0.0016 0.0017 0.0023 #1 NGV 0.0015 0.0022Lithium Total Recoverable g/m3 - 0.0023 0.0015 0.0021 #1 0.0022 #1 0.00189 0.0021 #1 0.00173 0.0021 0.0021 #1 NGV 0.0015 0.0023Magnesium Dissolved g/m3 - 3 2.1 2.7 #1 3.1 #1 2.2 2.5 #1 2.2 2.3 2.7 #1 NGV 2.1 3Magnesium Total Recoverable g/m3 - 3.1 2.2 2.5 #1 2.9 #1 2.1 2.4 #1 2.2 2.5 2.4 #1 NGV 2.2 3.1Manganese Dissolved g/m3 0.5 0.0018 0.003 0.0014 #1 0.0011 0.0072 0.0015 #1 0.0016 0.0011 0.0013 0.1 0.0018 0.5Manganese Total Recoverable g/m3 0.53 0.0021 0.0035 0.0013 #1 0.00124 0.0077 0.00149 #1 0.00184 0.00122 0.00165 0.1 0.0021 0.53Mercury Dissolved g/m3 - < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 0.001 < 0.000080 < 0.000080Mercury Total Recoverable g/m3 - < 0.000080 < 0.000080 < 0.000080 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008 0.001 < 0.000080 < 0.000080Molybdenum Dissolved g/m3 - < 0.00021 < 0.00021 < 0.00021 < 0.0002 < 0.0002 < 0.0002 < 0.0002 < 0.0002 < 0.0002 NGV < 0.00021 < 0.00021Molybdenum Total Recoverable g/m3 - < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 < 0.00021 NGV < 0.00021 < 0.00021Nickel Dissolved g/m3 0.0092 0.0014 0.0011 0.0012 #1 0.0014 0.0012 0.0014 #1 0.0011 #1 0.0011 0.0012 0.1 0.0011 0.0092Nickel Total Recoverable g/m3 0.009 0.0015 0.0012 0.0011 #1 0.00164 0.00127 0.00126 #1 0.00101 #1 0.00113 0.00122 0.1 0.0012 0.009Potassium Dissolved g/m3 - 0.68 0.61 0.67 0.71 #1 0.74 0.74 #1 0.63 #1 0.55 0.81 #1 NGV 0.61 0.68Potassium Total Recoverable g/m3 - 0.7 0.6 0.68 0.67 #1 0.77 0.69 #1 0.62 #1 0.66 0.78 #1 NGV 0.6 0.7Selenium Dissolved g/m3 - < 0.0011 < 0.0011 < 0.0011 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010 <0.0010 0.01 < 0.0011 < 0.0011Selenium Total Recoverable g/m3 - < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011 <0.0011 0.01 < 0.0011 < 0.0011Silver Dissolved g/m3 - < 0.00011 < 0.00011 < 0.00011 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010 0.05 < 0.00011 < 0.00011Silver Total Recoverable g/m3 - < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011 0.05 < 0.00011 < 0.00011Sodium Dissolved g/m3 - 8 7.6 8.4 8.7 #1 7.2 8.4 #1 7.7 7.4 8.5 #1 300 7.6 8.4Sodium Total Recoverable g/m3 - 8.2 7.7 8.6 8.4 #1 7.3 8.0 #1 8.0 7.9 7.5 #1 300 7.7 8.6Tin Dissolved g/m3 - < 0.00053 < 0.00053 < 0.00053 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005 NGV < 0.00053 < 0.00053Tin Total Recoverable g/m3 - < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053 NGV < 0.00053 < 0.00053Uranium Dissolved g/m3 - < 0.000021 < 0.000021 < 0.000021 < 0.00002 < 0.00002 < 0.00002 < 0.00002 < 0.00002 < 0.00002 NGV < 0.000021 < 0.000021Uranium Total Recoverable g/m3 - < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021 NGV < 0.000021 < 0.000021Zinc Dissolved g/m3 12 1.7 1.6 1.8 #1 1.93 #1 2.7 #1 2.2 #1 1.83 #1 1.76 1.50 #1 5 1.6 12Zinc Total Recoverable g/m3 13 1.7 1.6 1.7 #1

1.85 #1 2.4 #1 1.97 #1 1.75 #1 1.82 1.38 #1 5 1.6 13

Notes:"-" Parameter not measured#1 It has been noted that the result for the dissolved fraction was greater than that for the total fraction, but within analytical variation of the methods.#2 Anion/cation balanced outside DQOsNGV: No guideline value


Ruakaka Tributary (SW101)Table B6: Water Quality Results for Tui Mine Baseline Monitoring at SW101


Appe

ndix CFluxes


J:\A02200_A02299\A02277 Tui Mine\A02277608 2012 Monitoring\S_Spreadsheets\A02277608_Fluxes (Autosaved).xls PATTLE DELAMORE PARTNERS LTD

Sample No. SW3 ADIT4 ADIT4 ADIT4 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 SW3 Minimum MaximumSampling date 15/12/01 30/01/07 3/05/07 27/07/07 17/09/09 8/10/09 17/11/09 6/09/11 11/10/11 8/11/11 6/09/12 17/10/12 15/11/12Arsenic Dissolved g/s - <d.l. <d.l. <d.l. <dL <dL <dL 6.88E-07 3.13E-06 1.40E-06 <dL <dL <dL <dL <dLArsenic Total Recoverable g/s - <d.l. 8.10E-07 <d.l. <dL <dL <dL 1.03E-06 3.44E-06 2.09E-06 <dL <dL 5.74E-07 <dL 8.10E-07Cadmium Dissolved g/s 1.19E-05 1.27E-06 2.43E-06 1.43E-06 5.91E-07 3.38E-06 1.37E-06 2.89E-04 2.44E-04 5.17E-04 5.40E-04 3.20E-05 2.17E-05 5.91E-07 1.19E-05Cadmium Total Recoverable g/s 1.55E-05 1.27E-06 3.24E-06 1.44E-06 6.24E-07 3.17E-06 1.44E-06 2.89E-04 2.63E-04 5.17E-04 4.65E-04 3.44E-05 2.17E-05 6.24E-07 1.55E-05Copper Dissolved g/s 2.15E-05 1.01E-06 8.10E-07 5.10E-07 3.12E-07 2.03E-06 4.69E-07 4.54E-04 5.50E-04 1.08E-03 8.70E-04 6.32E-05 2.75E-05 3.12E-07 2.15E-05Copper Total Recoverable g/s 6.20E-05 1.01E-06 3.08E-05 6.13E-07 4.76E-07 2.53E-06 5.77E-06 7.29E-04 7.82E-04 1.42E-03 1.37E-03 1.19E-04 7.18E-05 4.76E-07 6.20E-05Iron Dissolved g/s <dL 4.05E-06 1.30E-05 2.56E-06 <dL <dL <dL 1.38E-05 4.07E-04 2.09E-04 9.00E-05 4.80E-05 8.00E-06 2.56E-06 1.30E-05Iron Total Recoverable g/s 6.35E-03 7.34E-06 3.38E-04 3.01E-04 <dL <dL <dL 8.18E-04 1.28E-03 2.05E-03 1.88E-03 4.56E-04 <dL 7.34E-06 6.35E-03Lead Dissolved g/s 3.00E-06 <dL <dL <dL 9.52E-08 1.03E-06 3.36E-07 1.22E-05 3.25E-04 3.49E-05 2.36E-05 2.64E-05 3.08E-06 9.52E-08 3.00E-06Lead Total Recoverable g/s 3.49E-04 7.59E-07 6.48E-06 3.17E-06 2.13E-07 1.69E-06 3.97E-07 1.08E-04 5.29E-04 2.58E-04 2.48E-04 1.30E-04 5.17E-05 2.13E-07 3.49E-04Zinc Dissolved g/s 1.27E-03 1.51E-04 2.48E-04 1.06E-04 6.73E-05 3.80E-04 1.55E-04 3.99E-02 3.47E-02 7.40E-02 6.75E-02 4.72E-03 3.03E-03 6.73E-05 1.27E-03Zinc Total Recoverable g/s 1.91E-03 1.45E-04 3.05E-04 1.06E-04 6.40E-05 3.80E-04 1.52E-04 3.71E-02 3.63E-02 6.56E-02 6.60E-02 4.48E-03 2.87E-03 6.40E-05 1.91E-03

Note:<dL = less than Detection limit

Units

Table C-1: Assessment of the Mass loads of Contaminants at SW3Mass Fluxes SW3



Sample No. SW5 ADIT5 ADIT5 ADIT5 ADIT5 SW5 SW5 SW5 SW5 SW5 SW5 SW5 SW5 SW5 Minimum MaximumSampling date 15/12/01 30/01/07 3/05/07 27/07/07 3/11/07 17/09/09 8/10/09 17/11/09 6/09/11 11/10/2011 8/11/2011 6/09/2012 17/10/2012 15/11/2012Arsenic Dissolved g/s - 9.91E-06 5.58E-06 1.66E-05 2.15E-05 <dL <dL 1.13E-05 9.75E-07 1.36E-06 1.63E-06 1.62E-05 1.88E-05 3.14E-05 5.58E-06 2.15E-05Arsenic Total Recoverable g/s - 3.96E-05 2.09E-05 4.78E-05 7.44E-05 2.96E-05 3.88E-05 3.89E-05 9.10E-07 1.76E-06 1.71E-06 2.57E-05 3.05E-05 4.56E-05 2.09E-05 7.44E-05Cadmium Dissolved g/s 1.33E-03 3.27E-04 7.18E-04 1.92E-03 1.72E-03 7.41E-04 1.94E-03 9.72E-04 2.93E-05 3.66E-05 3.66E-05 4.14E-05 5.02E-05 7.86E-05 3.27E-04 1.94E-03Cadmium Total Recoverable g/s 1.44E-03 1.07E-03 7.95E-04 1.73E-03 1.86E-03 8.55E-04 2.14E-03 1.13E-03 2.99E-05 3.60E-05 3.82E-05 4.14E-05 5.85E-05 7.60E-05 7.95E-04 2.14E-03Copper Dissolved g/s 1.45E-04 7.93E-05 3.49E-05 2.99E-04 1.72E-04 4.85E-05 4.39E-04 7.53E-05 1.50E-06 6.78E-07 4.07E-07 <dL 3.97E-06 7.86E-06 <dL 4.39E-04Copper Total Recoverable g/s 2.22E-03 1.34E-03 6.90E-04 5.20E-03 2.72E-03 1.14E-03 5.00E-03 1.70E-03 1.63E-06 7.46E-07 4.23E-06 <dL <dL 8.65E-06 <dL 5.20E-03Iron Dissolved g/s <dL 3.17E-05 8.36E-05 5.49E-03 <dL <dL <dL <dL 1.76E-04 9.02E-04 1.29E-03 2.00E-02 2.38E-02 3.88E-02 3.17E-05 5.49E-03Iron Total Recoverable g/s 3.03E-02 2.44E-02 2.20E-02 3.27E-02 5.29E-02 2.68E-02 4.49E-02 3.40E-02 8.78E-04 1.76E-03 2.36E-03 2.47E-02 3.07E-02 4.93E-02 2.20E-02 5.29E-02Lead Dissolved g/s 9.00E-06 9.91E-06 <d.l. <d.l. 4.29E-06 1.43E-06 7.85E-06 2.11E-06 6.50E-08 1.36E-07 8.13E-08 <dl <dL <dL <dL 9.91E-06Lead Total Recoverable g/s 9.79E-04 3.96E-04 2.09E-04 3.77E-04 1.10E-03 4.10E-04 1.53E-03 6.24E-04 1.82E-06 2.44E-06 3.25E-06 2.45E-06 2.95E-06 4.59E-06 2.09E-04 1.53E-03Zinc Dissolved g/s 1.74E-01 1.68E-01 1.02E-01 2.95E-01 2.57E-01 1.14E-01 2.75E-01 1.54E-01 1.22E-02 1.42E-02 1.50E-02 2.57E-02 3.14E-02 4.69E-02 1.02E-01 2.95E-01Zinc Total Recoverable g/s 1.94E-01 1.81E-01 1.17E-01 3.07E-01 2.86E-01 1.25E-01 3.06E-01 1.78E-01 1.27E-02 1.42E-02 1.50E-02 2.90E-02 3.41E-02 4.74E-02 1.17E-01 3.07E-01


Units

Table C-2: Assesssment of the Mass loads of Contaminants at SW5Mass Fluxes SW5



Sample No. TK2 TK2 SW7 SW7 SW7 SW7 SW7 SW7 SW7 SW7 SW7 Minimum MaximumSampling date 3/05/07 27/07/07 17/09/09 8/10/09 17/11/09 6/09/11 11/10/11 8/11/11 6/09/12 17/10/12 15/11/12

Arsenic Dissolved g/s <dL 1.83E-05 <dL <dL <dL <dL <dL <dL <dL <dL <dL <dL <dLArsenic Total Recoverable g/s <dL 1.25E-04 <dL 4.46E-04 <dL <dL <dL <dL <dL <dL <dL <dL 4.46E-04

Cadmium Dissolved g/s 1.44E-03 1.22E-03 8.23E-04 3.05E-03 9.70E-04 2.52E-04 1.37E-03 5.84E-04 1.06E-03 5.31E-04 3.67E-04 2.52E-04 3.05E-03Cadmium Total Recoverable g/s 1.44E-03 1.24E-03 8.59E-04 3.16E-03 9.70E-04 2.52E-04 1.46E-03 5.42E-04 1.06E-03 5.78E-04 3.67E-04 2.52E-04 3.16E-03

Copper Dissolved g/s 4.27E-04 4.05E-05 3.76E-04 2.18E-03 1.96E-04 8.42E-05 1.27E-03 1.93E-04 4.12E-04 1.69E-04 9.69E-05 4.05E-05 2.18E-03Copper Total Recoverable g/s 1.07E-03 1.67E-03 7.34E-04 7.08E-03 8.32E-04 1.66E-04 2.26E-03 2.64E-04 7.76E-04 2.40E-04 1.56E-04 1.66E-04 7.08E-03

Iron Dissolved g/s 1.07E-03 8.82E-04 2.86E-03 4.03E-03 <dL <dL 2.36E-03 <dL <dL <dL <dL <dL 4.03E-03Iron Total Recoverable g/s 1.60E-02 2.27E-02 7.34E-03 4.46E-02 1.09E-02 1.80E-04 7.87E-03 2.92E-04 3.29E-03 1.34E-03 4.98E-04 1.80E-04 4.46E-02

Lead Dissolved g/s 1.60E-04 6.72E-05 2.51E-04 1.31E-03 7.13E-05 4.25E-05 1.08E-03 1.63E-04 2.63E-04 9.24E-05 3.80E-05 4.25E-05 1.31E-03Lead Total Recoverable g/s 5.34E-04 8.05E-04 5.91E-04 1.09E-02 7.13E-04 1.66E-04 2.78E-03 2.56E-04 8.62E-04 3.03E-04 1.66E-04 1.66E-04 1.09E-02

Zinc Dissolved g/s 3.21E-01 1.66E-01 1.18E-01 4.25E-01 1.35E-01 3.74E-02 1.98E-01 8.20E-02 1.57E-01 7.62E-02 5.24E-02 3.74E-02 4.25E-01Zinc Total Recoverable g/s 3.37E-01 1.70E-01 1.25E-01 4.46E-01 1.43E-01 3.53E-02 1.98E-01 7.51E-02 1.57E-01 8.32E-02 4.98E-02 3.53E-02 4.46E-01


Table C-3: Assessment of the Mass Loads of Contaminants at SW7 (Tunakohoia N Branch, Downstream)



Sample No. TK3 TK3 TK3 TK3 SW100 SW100 SW100 SW100 SW100 SW100 SW100 SW100 SW100 Minimum MaximumSampling date 30/01/07 3/05/07 27/07/07 3/11/07 17/09/09 8/10/09 17/11/09 6/09/11 11/10/11 8/11/11 6/09/12 17/10/12 15/11/12Arsenic Dissolved g/s <dL <dL 1.7E-05 8.1E-06 2.3E-05 <dL <dL 1.4E-06 1.2E-05 4.6E-06 <dL <dL <dL <dL 2.30E-05Arsenic Total Recoverable g/s 8.0E-06 4.2E-06 6.5E-05 3.6E-05 6.0E-06 <dL 3.5E-06 1.5E-06 1.3E-05 5.1E-06 <dL <dL 2.1E-05 <dL 6.46E-05Cadmium Dissolved g/s 7.1E-04 2.4E-04 3.4E-03 1.4E-03 2.1E-04 7.9E-04 1.5E-04 1.4E-04 5.4E-04 3.8E-04 3.8E-04 3.0E-04 1.6E-04 1.43E-04 3.41E-03Cadmium Total Recoverable g/s 8.0E-04 2.5E-04 3.4E-03 1.5E-03 2.3E-04 8.5E-04 1.7E-04 1.4E-04 5.3E-04 3.8E-04 3.6E-04 3.3E-04 1.8E-04 1.43E-04 3.38E-03Copper Dissolved g/s 7.2E-05 3.3E-05 6.6E-05 1.9E-04 1.6E-05 3.4E-04 1.5E-05 6.7E-05 5.3E-04 2.4E-04 8.9E-05 4.4E-05 2.8E-05 1.47E-05 3.38E-04Copper Total Recoverable g/s 4.8E-05 1.8E-04 4.2E-03 1.8E-03 2.6E-04 1.7E-03 1.7E-04 8.8E-05 8.7E-04 3.5E-04 3.6E-04 1.8E-04 1.7E-04 4.78E-05 4.24E-03Iron Dissolved g/s 7.9E-03 4.2E-05 2.0E-04 <dL <dL 3.4E-04 <dL <dL 3.6E-04 <dL <dL <dL <dL <dL 7.87E-03Iron Total Recoverable g/s 9.9E-03 4.3E-03 4.7E-02 2.8E-02 5.1E-03 1.2E-02 3.6E-03 7.0E-05 1.8E-03 5.1E-04 3.3E-03 8.7E-03 2.2E-02 7.00E-05 4.72E-02Lead Dissolved g/s 8.0E-05 4.2E-06 5.8E-05 8.9E-05 9.0E-06 5.1E-05 4.9E-06 5.2E-05 4.0E-04 1.1E-04 2.6E-05 1.7E-05 6.1E-06 4.18E-06 8.93E-05Lead Total Recoverable g/s 4.9E-04 5.0E-05 1.1E-03 9.4E-04 1.2E-04 7.7E-04 9.2E-05 7.1E-05 8.0E-04 2.1E-04 2.8E-04 3.7E-04 4.0E-04 5.02E-05 1.08E-03Zinc Dissolved g/s 8.4E-02 3.9E-02 4.4E-01 1.9E-01 2.8E-02 1.1E-01 2.3E-02 2.1E-02 7.9E-02 5.3E-02 5.6E-02 5.5E-02 2.8E-02 2.11E-02 4.43E-01Zinc Total Recoverable g/s 9.2E-02 4.2E-02 4.7E-01 2.3E-01 3.2E-02 1.2E-01 2.4E-02 2.0E-02 7.4E-02 5.0E-02 5.6E-02 5.8E-02 3.4E-02 1.96E-02 4.72E-01


Units

Table C-4: Assessment of the Mass Loads of Contaminants at SW100 (Tunakohoia N Branch, Access Road)



Sample No. SW101 SW101 SW101 SW101 SW101 SW101 SW101 SW101 SW101 Minimum MaximumSampling date 17/09/09 8/10/09 17/11/09 6/09/11 11/10/11 8/11/11 6/09/11 11/10/11 8/11/11Arsenic Dissolved g/s <dL <dL <dL <dL <dL <dL <dL <dL <dL <dL <dLArsenic Total Recoverable g/s <dL <dL <dL <dL <dL <dL <dL <dL <dL <dL <dLCadmium Dissolved g/s 1.1E-05 3.5E-04 2.0E-05 9.0E-06 1.2E-04 3.3E-05 1.4E-05 2.1E-05 1.8E-06 9.0E-06 3.5E-04Cadmium Total Recoverable g/s 1.2E-05 3.5E-04 2.2E-05 8.6E-06 1.1E-04 3.2E-05 1.3E-05 2.3E-05 1.7E-06 8.6E-06 3.5E-04Copper Dissolved g/s 3.3E-06 1.8E-04 7.2E-06 2.5E-06 1.0E-04 1.3E-05 6.7E-06 7.2E-06 1.4E-06 2.5E-06 1.8E-04Copper Total Recoverable g/s 3.7E-06 1.8E-04 7.2E-06 2.7E-06 1.0E-04 1.4E-05 7.2E-06 7.5E-06 1.5E-06 2.7E-06 1.8E-04Iron Dissolved g/s <dL <dL <dL <dL <dL <dL <dL <dL <dL <dL <dLIron Total Recoverable g/s <dL <dL <dL <dL <dL <dL <dL <dL <dL <dL <dLLead Dissolved g/s 1.4E-04 4.0E-03 2.7E-04 1.1E-04 1.3E-03 3.4E-04 1.3E-04 2.0E-04 2.8E-05 1.1E-04 4.0E-03Lead Total Recoverable g/s 1.7E-04 4.3E-03 2.9E-04 1.1E-04 1.3E-03 3.5E-04 1.4E-04 2.3E-04 2.8E-05 1.1E-04 4.3E-03Zinc Dissolved g/s 1.2E-03 4.0E-02 2.3E-03 1.0E-03 1.5E-02 4.0E-03 1.6E-03 2.5E-03 2.1E-04 1.0E-03 4.0E-02Zinc Total Recoverable g/s 1.2E-03 4.0E-02 2.2E-03 9.5E-04 1.3E-02 3.5E-03 1.6E-03 2.6E-03 2.0E-04 9.5E-04 4.0E-02


Units

Table C-5: Assessment of the Mass Loads of Contaminants at SW101 (Ruakaka Tributary)Mass Fluxes SW101


Appe

ndix D

Qualit

y Assurance/Q

ualit

y C

ontrol


A P P E N D I X D

Appendix D.doc

1.0 Quality Assurance/Quality Control (QA/QC)

As part of the QA/QC sampling program, PDP collected the following samples:

• One blind replicate sample during each of the three monitoring rounds which was

analysed for all parameters in this investigation to assess the precision of

laboratory analysis;

• A split sample from the September monitoring round, prepared by Hill

Laboratories and sent to Environmental Laboratory Services for duplicate analysis

for cation/anion analysis as well as dissolved and total metals ; and

• One filter (rinsate) blank collected at each of the baseline monitoring locations

during each of the three monitoring rounds and analysed for dissolved metals to

identify contamination which may have occurred in either sample collection

and/or laboratory analysis.

Analysis of the samples was undertaken by Hill Laboratories in Hamilton (an IANZ

accredited laboratory) and, for the split sample only, Environmental Laboratory Services in

Wellington (an IANZ accredited laboratory). The results of the analysis of the QA/QC

samples were then compared against the project ’s data quality objectives outlined in

Table D-1.

The blind replicate samples were collected as follows:

• September monitoring round: blind replicate sample (BHA) was collected at SW3.

• October monitoring round: blind replicate sample (BHC) was collected at SW5.

• November monitoring round: blind replicate sample (SWC) was collected at SW3.

To quantify the similarity between the two samples, the Relative Percent Difference

(%RPD) for each individual parameter concentration was calculated (where possible). The

RPD calculations for the duplicate sample sets were within acceptable limits for all

parameters with concentrations reported above the laboratory method detection limits

(see Table D-2). During the September 2012 monitoring round, the %RPD for total

selenium (82.1%) in samples SW3 and BHA was very high. This sample was re-analysed

several times and Hill Laboratories advised PDP that the high zinc concentrations within

the sample were causing analytical interferences, therefore this result and all other

selenium results should be treated with some caution when very high zinc concentrations

are present.


A P P E N D I X D

Appendix D.doc

During the November monitoring round a high %RPD was measured for dissolved

antimony (66.7%), however this results was within the project’s data quality objective for

metal analysis because the dissolved antimony results were less than 5 times the

analytical detection limit for antimony (0.0002 g/m3)1.

One trip blank and one field blank per monitoring event were collected and analysed for

dissolved and total metals and the cation/anion suite. (A trip blank is a sample bottle

filled with Type 1 (deionised) water by the laboratory. The bottle is placed amongst the

other sample bottles, but remains unopened. A field blank is a bottle that is filled in the

field with Type 1 (deionised) water supplied by the laboratory. The purpose of trip and

field blanks is to randomly check that laboratory practices are not responsible for

contamination).

During the first monitoring round, the field blank (BHC) was collected at SW3; during the

second monitoring round, the field blank (BHC) was collected at SW5 and for the third

round (SWB), the field blank was collected at SW3.

During the first monitoring round, the trip blank was labelled BHB. During the second

monitoring round, the trip blank was labelled BHB and during the third round, the trip

blank was labelled SWA.

The trip and field blank samples did not report concentrations of the contaminants of

concern above the laboratory detection limits in any of the three monitoring rounds (see

Table D3).

To verify the accuracy of analytical results from Hill Laboratories, a split sample was

obtained from SW3 during the September 2012 monitoring round and sent to

Environmental Laboratory Services. To quantify the similarity between the two

samples, the RPD for each individual parameter concentration was calculated (where

possible). The RPD calculations for the two sample sets were within acceptable limits for

most parameters with concentrations reported above the two laboratories detection limits

(See Table D4).

1

The data quality objectives recognize the uncertainty/noise inherent with concentrations close to

the analytical detection limit. This results in relative percentage difference for duplicate analysis of

up to 100% being acceptable for results which are less than 5 times the analytical detection limit.


A P P E N D I X D

Appendix D.doc

Table D1: Data Quality Objectives (Based Upon APHA and CLMG#5 Recommendations (MfE,

2004)

Parameter DQO Proposed Action

Anion/Cation Balance

• 0-3.0 meq/L ±0.2 meq/L Check with Lab., identify if missing

parameter or lab error.

• 3.0-10.0 meq/L ± 2% Check with Lab., identify if missing


• 10.0 - 80.0 meq/L ± 5% Check with Lab., identify if missing


Calculated Total Dissolved Solids versus

measured EC

0.55 to 0.7 Check with Lab., identify if missing


Field pH versus Lab pH ±0.5 pH units Check with lab if precipitation of iron has

occurred.

Field Conductivity versus Lab Conductivity ± 20% Check calibration of instruments and if

precipitation of iron has occurred.

Calculated Total Dissolved Solids versus

measured EC

0.55 to 0.7 Check with Lab., identify if missing


Split/Duplicate Analysis

Results more than 10 x Detection Limit (DL)

± 30% Check with lab and re-analysed if

necessary.

Results more than 5 x DL but less than 10 x DL ± 50% Check with lab and re-analysed if

necessary.

Results less than 5 x DL ± 100% Check with lab and re-analysed if

necessary.

General Results Check

Check if dissolved metal concentration are equal

or less than Total metal Concentrations

Check with lab and re-analysed if necessary.

Results more than 2 order of magnitude different

than 95% UCL of historical data set

Check with lab and re-analysed if necessary.


Sampling RoundSample No. SW3 BHA SW5 BHC SW3 SW C Sampling Date 6-Sep-12 6-Sep-12 17-Oct-12 17-Oct-12 15-11-2012 15-11-2012Laboratory Number 1044859.1 1044859.7 1060297.2 1060297.9 1070611.6 1070611.1Sum of Anions meq/L 3.6 3.6 0.0% 27 27 0.0% 2.5 2.7 -7.7%Sum of Cations meq/L 3.5 3.3 5.9% 26 25 3.9% 2.6 2.6 0.0%pH pH Units 6.6 6.7 -1.5% 7.2 6.9 4.3% 7.4 7.3 1.4%Total Alkalinity g/m3 as CaCO3 23 22 4.4% 116 116 0.0% 58 62 -6.7%Bicarbonate g/m3 at 25°C 28 27 3.6% 142 141 0.7% 71 75 -5.5%Electrical Conductivity (EC) mS/m 34.2 32.3 5.7% 183.0 185.3 -1.2% 25.1 25.0 0.4%Total Suspended Solids g/m3 6 5 18.2% 28 28 0.0% 3 < 3 NC 1

Dissolved Lanthanum g/m3 0.00036 0.00033 8.7% < 0.0002 < 0.0002 NC 1 < 0.00010 < 0.00010 NC 1

Total Lanthanum g/m3 0.00047 0.00048 -2.1% < 0.00021 < 0.00021 NC 1 < 0.00011 < 0.00011 NC 1

Chloride g/m3 9 8.9 1.1% 9.5 9.4 1.1% 8.0 8.3 -3.7%Nitrite-N g/m3 < 0.002 < 0.002 NC 1 < 0.010 < 0.010 NC 1 < 0.002 < 0.002 NC 1

Nitrate-N g/m3 0.145 0.146 -0.7% 0.013 0.010 26.1% 0.038 0.043 -12.3%Nitrate-N + Nitrite-N g/m3 0.146 0.146 0.0% 0.013 0.011 16.7% 0.038 0.043 -12.3%Reactive Silica g/m3 as SiO2 10.2 10.1 1.0% 24 24 0.0% 10.9 10.9 0.0%Sulphate g/m3 139 138 0.7% 1,190 1,200 -0.8% 55 61 -10.3%

Total Hardness g/m3 as CaCO3 88 83 5.8% 1,190 1,150 3.4% 101 101 0.0%Dissolved Aluminium g/m3 0.006 0.006 0.0% < 0.006 < 0.006 NC 1 0.008 0.009 -11.8%Dissolved Antimony g/m3 0.0005 0.0005 0.0% < 0.0004 < 0.0004 NC 1 0.0004 0.0008 -66.7%Dissolved Arsenic g/m3 < 0.0010 < 0.0010 NC 1 0.009 0.010 -10.5% < 0.0010 < 0.0010 NC 1

Dissolved Barium g/m3 0.027 0.026 3.8% 0.052 0.052 0.0% 0.028 0.034 -19.4%Dissolved Beryllium g/m3 < 0.00010 < 0.00010 NC 1 < 0.0002 < 0.0002 NC 1 < 0.00010 < 0.00010 NC 1

Dissolved Boron g/m3 0.010 0.012 -18.2% 0.048 0.051 -6.1% 0.011 0.011 0.0%Dissolved Cadmium g/m3 0.36 0.34 5.7% 0.024 0.024 0.0% 0.053 0.053 0.0%Dissolved Calcium g/m3 24 23 4.3% 380 370 2.7% 31 31 0.0%Dissolved Chromium g/m3 < 0.0005 < 0.0005 NC 1 < 0.0010 < 0.0010 NC 1 < 0.0005 < 0.0005 NC 1

Dissolved Copper g/m3 0.58 0.54 7.1% < 0.0010 0.0019 NC 1 0.067 0.068 -1.5%Dissolved Iron g/m3 0.06 0.05 18.2% 11.4 11.4 0.0% < 0.02 < 0.02 NC 1

Dissolved Lead g/m3 0.0157 0.0166 -5.6% < 0.0002 < 0.0002 NC 1 0.0075 0.0075 0.0%Dissolved Lithium g/m3 0.0057 0.0058 -1.7% 0.043 0.044 -2.3% 0.0051 0.0050 2.0%Dissolved Magnesium g/m3 6.6 6.4 3.1% 55 54 1.8% 5.6 5.9 -5.2%Dissolved Manganese g/m3 0.73 0.68 7.1% 6.2 6.1 1.6% 0.31 0.32 -3.2%Dissolved Mercury g/m3 < 0.00008 < 0.00008 NC 1 < 0.00008 < 0.00008 NC 1 < 0.00008 < 0.00008 NC 1

Dissolved Molybdenum g/m3 < 0.0002 < 0.0002 NC 1 < 0.0004 < 0.0004 NC 1 0.0003 0.0004 -28.6%Dissolved Nickel g/m3 0.0083 0.0074 11.5% 0.058 0.059 -1.7% 0.0017 0.0016 6.1%Dissolved Potassium g/m3 0.55 0.54 1.8% 1.68 1.63 3.0% 0.57 0.58 -1.7%Dissolved Selenium g/m3 < 0.005 < 0.005 NC 1 < 0.002 < 0.002 NC 1 < 0.0010 < 0.0010 NC 1

Dissolved Silver g/m3 < 0.00010 < 0.00010 NC 1 < 0.0002 < 0.0002 NC 1 < 0.00010 < 0.00010 NC 1

Dissolved Sodium g/m3 6.8 6.8 0.0% 27 27 0.0% 7.3 6.6 10.1%Dissolved Tin g/m3 < 0.0005 < 0.0005 NC 1 < 0.0010 < 0.0010 NC 1 < 0.0005 < 0.0005 NC 1

Dissolved Uranium g/m3 < 0.00002 < 0.00002 NC 1 < 0.00004 < 0.00004 NC 1 < 0.00002 < 0.00002 NC 1

Dissolved Zinc g/m3 45 42 6.9% 15.0 15.1 -0.7% 7.4 7.5 -1.3%

Total Aluminium g/m3 0.33 0.34 -3.0% < 0.0063 < 0.0063 NC 1 0.064 0.066 -3.1%Total Antimony g/m3 0.00055 0.00060 -8.7% < 0.00042 < 0.00042 NC 1 0.00053 0.00056 -5.5%Total Arsenic g/m3 0.0016 0.0018 -11.8% 0.0146 0.0136 7.1% 0.0014 0.0013 7.4%Total Barium g/m3 0.024 0.025 -4.1% 0.056 0.058 -3.5% 0.028 0.028 0.0%Total Beryllium g/m3 < 0.00011 < 0.00011 NC 1 < 0.00021 < 0.00021 NC 1 < 0.00011 < 0.00011 NC 1

Total Boron g/m3 0.0103 0.011 -6.6% 0.049 0.048 2.1% 0.0104 0.0101 2.9%Total Cadmium g/m3 0.31 0.34 -9.2% 0.028 0.028 0.0% 0.053 0.053 0.0%Total Calcium g/m3 24 23 4.3% 410 420 -2.4% 30 30 0.0%Total Chromium g/m3 < 0.00053 < 0.00053 NC 1 < 0.0011 < 0.0011 NC 1 < 0.00053 < 0.00053 NC 1

Total Copper g/m3 0.91 0.83 9.2% < 0.0011 < 0.0011 NC 1 0.175 0.178 -1.7%Total Iron g/m3 1.25 1.36 -8.4% 14.7 14.8 -0.7% 0.91 0.90 1.1%Total Lead g/m3 0.165 0.170 -3.0% 0.00141 0.00146 -3.5% 0.126 0.125 0.8%Total Lithium g/m3 0.0058 0.0057 1.7% 0.045 0.046 -2.2% 0.0048 0.0052 -8.0%Total Magnesium g/m3 6.4 6.2 3.2% 52 54 -3.8% 5.5 5.6 -1.8%Total Manganese g/m3 0.70 0.72 -2.8% 6.2 6.4 -3.2% 0.31 0.31 0.0%Total Mercury g/m3 < 0.00008 < 0.00008 NC 1 < 0.00008 < 0.00008 NC 1 < 0.00008 < 0.00008 NC 1

Total Molybdenum g/m3 < 0.00021 0.00024 NC 1 < 0.00042 < 0.00042 NC 1 0.00047 0.00050 -6.2%Total Nickel g/m3 0.0080 0.0077 3.8% 0.064 0.065 -1.6% 0.00142 0.00161 -12.5%Total Potassium g/m3 0.54 0.50 7.7% 1.85 1.91 -3.2% 0.55 0.53 3.7%Total Selenium g/m3 0.0055 0.0023 82.1% < 0.0021 0.0023 NC 1 < 0.0011 < 0.0011 NC 1

Total Silver g/m3 < 0.00011 < 0.00011 NC 1 < 0.0011 < 0.0011 NC 1 < 0.00011 < 0.00011 NC 1

Total Sodium g/m3 7.1 6.5 8.8% 28 28 0.0% 6.8 6.5 4.5%Total Tin g/m3 < 0.00053 < 0.00053 NC 1 < 0.0011 < 0.0011 NC 1 < 0.00053 < 0.00053 NC 1

Total Uranium g/m3 < 0.000021 < 0.000021 NC 1 < 0.000042 < 0.000042 NC 1 < 0.000021 < 0.000021 NC 1

Total Zinc g/m3 44 42 4.7% 16.3 16.2 0.6% 7 7.2 -2.8%

NotesNC 1

RPD

Table D2: Results of Duplicate Analysis and Calculated Relative Percentage Difference (RPD) Between Duplicates Samples

September Monitoring Round

Dissolved Metals

Total Metals

Not calculated. Relative percentage difference not calculated if one or more of the results are below the anlaytical detection limit.

November Monitoring RoundOctober Monitoring Round

RPD RPD

J:\A02200_A02299\A02277 Tui Mine\A02277608 2012 Monitoring\S_Spreadsheets\A02277608_Report Tables.xls PATTLE DELAMORE PARTNERS LTD


Table D3: Results of Interlaboatory Comparision and Calcualted Relative Percentage Difference (RPD) Between Split Samples

Sample No.Sampled By PDP2012 PDP2012Sampling Date 9/06/2012 9/06/2012Laboratory Hill Laboratories ELSLaboratory Number 1044859.4 12/20953pH (pH units) pH units 6.9 7.0 -0.72%Conductivity mS/m 188.6 197 -2.18%

Alkalinity g/m3 as CaCO3 117 109 3.54%Calcium g/m3 390 392 -0.26%Magnesium g/m3 50 56.7 -6.28%Potassium g/m3 1.82 1.90 -2.15%Sodium g/m3 26 29.4 -6.14%Chloride g/m3 9.7 10.1 -2.02%Nitrite-N g/m3 <0.002 <0.10 NC 1

Nitrate-N g/m3 0.010 <0.10 NC 1

Nitrate-N+Nitrite-N g/m3 0.012 - NC 1

Sulphate g/m3 1160 1110 2.20%Aluminium Dissolved g/m3 <0.006 0.003 NC 1

Aluminium Total Recoverable g/m3 <0.0063 <0.010 NC 1

Antimony Dissolved g/m3 <0.0004 <0.001 NC 1

Antimony Total Recoverable g/m3 < 0.00042 <0.002 NC 1

Arsenic Dissolved g/m3 0.009 0.013 -18.18%Arsenic Total Recoverable g/m3 0.0143 0.013 4.76%Barium Dissolved g/m3 0.062 0.053 7.83%Barium Total Recoverable g/m3 0.057 0.058 -0.87%Beryllium Dissolved g/m3 <0.0002 <0.001 NC 1

Beryllium Total Recoverable g/m3 < 0.00021 <0.005 NC 1

Boron Dissolved g/m3 0.040 0.04 0.00%Boron Total Recoverable g/m3 0.050 <0.05 NC 1

Cadmium Dissolved g/m3 0.023 0.0192 9.00%Cadmium Total Recoverable g/m3 0.023 0.020 6.98%Calcium Dissolved g/m3 390 392 -0.26%Calcium Total Recoverable g/m3 380 394 -1.81%Chromium Dissolved g/m3 <0.0010 <0.001 NC 1

Chromium Total Recoverable g/m3 <0.0011 <0.001 NC 1

Copper Dissolved g/m3 <0.0010 <0.00005 NC 1

Copper Total Recoverable g/m3 <0.0011 <0.002 NC 1

Iron Dissolved g/m3 11.1 11.5 -1.77%Iron Total Recoverable g/m3 13.7 14.2 -1.79%Lead Dissolved g/m3 < 0.0002 <0.0005 NC 1

Lead Total Recoverable g/m3 0.00136 <0.001 NC 1

Lithium Dissolved g/m3 0.039 0.044 -6.02%Lithium Total Recoverable g/m3 0.044 0.044 0.00%Magnesium Dissolved g/m3 50 56.7 -6.28%Magnesium Total Recoverable g/m3 54 51.6 2.27%Manganese Dissolved g/m3 6.0 5.76 2.04%Manganese Total Recoverable g/m3 6.2 5.82 3.16%Mercury Dissolved g/m3 < 0.00008 <0.0005 NC 1

Mercury Total Recoverable g/m3 < 0.00008 <0.001 NC 1

Molybdenum Dissolved g/m3 <0.0004 <0.0005 NC 1

Molybdenum Total Recoverable g/m3 <0.00042 <0.001 NC 1

Nickel Dissolved g/m3 0.059 0.0633 -3.52%Nickel Total Recoverable g/m3 0.065 0.063 1.56%Potassium Dissolved g/m3 1.82 1.9 -2.15%Potassium Total Recoverable g/m3 1.88 1.80 2.17%Selenium Dissolved g/m3 <0.002 <0.005 NC 1

Selenium Total Recoverable g/m3 < 0.0021 <0.005 NC 1

Silver Dissolved g/m3 <0.0002 <0.0005 NC 1

Silver Total Recoverable g/m3 < 0.00022 <0.001 NC 1

Sodium Dissolved g/m3 26 29.4 -6.14%Sodium Total Recoverable g/m3 30 25.0 9.09%Tin Dissolved g/m3 <0.0010 <0.0005 NC 1

Tin Total Recoverable g/m3 < 0.0011 <0.001 NC 1

Uranium Dissolved g/m3 <0.00004 <0.0002 NC 1

Uranium Total Recoverable g/m3 < 0.000042 <0.001 NC 1

Zinc Dissolved g/m3 14.3 14.2 0.35%Zinc Total Recoverable g/m3 16.1 20.0 -10.80%

NotesNC 1

SW5

RPD

Not calculated. Relative percentage difference not calculated if one or more of the results are below the anlaytical detection limit.



Sampling RoundSample No. BHB BHC BHA BHB SW A SW BSample Type Trip Blank Field Blank Trip Blank Field Blank Trip Blank Field BlankSampling Date 6-Sep-12 6-Sep-12 17-Oct-12 17-Oct-12 15-11-2012 15-11-2012Laboratory Number 1044859.8 1044859.9 1060297.7 1060297.8 1070611.8 1070611.9Sum of Anions meq/L <0.07 - <0.07 - <0.07 -Sum of Cations meq/L <0.05 - <0.05 - <0.05 -pH pH Units 6.6 - 5.7 - 7.0 -Total Alkalinity g/m3 as CaCO3 2.2 - 2.2 - 2.2 -Bicarbonate g/m3 at 25°C 2.7 - 2.7 - 2.7 -Electrical Conductivity (EC) mS/m <0.1 - 0.1 - <0.1 -Total Suspended Solids g/m3 <3 - - - - -Dissolved Lanthanum g/m3 < 0.00010 <0.00010 < 0.00010 - < 0.00010 <0.00010Total Lanthanum g/m3 < 0.00011 - < 0.00011 - < 0.00011 -Chloride g/m3 <0.5 - <0.5 - <0.5 -Nitrite-N g/m3 <0.002 - <0.002 - <0.002 -Nitrate-N g/m3 <0.002 - <0.002 - <0.002 -Nitrate-N + Nitrite-N g/m3 <0.002 - <0.002 - <0.002 -Reactive Silica g/m3 as SiO2 <0.10 - - - <0.10 <0.10Sulphate g/m3 <0.5 - <0.5 - <0.5 -

Total Hardness g/m3 as CaCO3 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0Dissolved Aluminium g/m3 <0.003 <0.003 <0.003 <0.003 <0.003 <0.003Dissolved Antimony g/m3 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002Dissolved Arsenic g/m3 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010Dissolved Barium g/m3 <0.00010 <0.00010 <0.00010 <0.00010 <0.00010 <0.00010Dissolved Beryllium g/m3 <0.00010 <0.00010 <0.00010 <0.00010 <0.00010 <0.00010Dissolved Boron g/m3 <0.005 <0.005 <0.005 <0.005 <0.005 <0.005Dissolved Cadmium g/m3 <0.00005 <0.00005 <0.00005 <0.00005 <0.00005 <0.00005Dissolved Calcium g/m3 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05Dissolved Chromium g/m3 <0.0005 <0.0005 <0.0005 <0.0005 <0.0005 <0.0005Dissolved Copper g/m3 <0.0005 <0.0005 <0.0005 <0.0005 <0.0005 <0.0005Dissolved Iron g/m3 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02Dissolved Lead g/m3 <0.00010 <0.00010 <0.00010 <0.00010 <0.00010 <0.00010Dissolved Lithium g/m3 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002Dissolved Magnesium g/m3 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02Dissolved Manganese g/m3 <0.0005 <0.0005 <0.0005 <0.0005 <0.0005 <0.0005Dissolved Mercury g/m3 <0.00008 <0.00008 <0.00008 <0.00008 <0.00008 <0.00008Dissolved Molybdenum g/m3 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.0002Dissolved Nickel g/m3 <0.0005 <0.0005 <0.0005 <0.0005 <0.0005 <0.0005Dissolved Potassium g/m3 <0.05 <0.05 <0.05 <0.05 <0.05 <0.05Dissolved Selenium g/m3 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010 <0.0010Dissolved Silver g/m3 <0.00010 <0.00010 <0.00010 <0.00010 <0.00010 <0.00010Dissolved Sodium g/m3 <0.02 <0.02 <0.02 <0.02 <0.02 <0.02Dissolved Tin g/m3 <0.0005 <0.0005 <0.0005 <0.0005 <0.0005 <0.0005Dissolved Uranium g/m3 <0.00002 <0.00002 <0.00002 <0.00002 <0.00002 <0.00002Dissolved Zinc g/m3 <0.0010 <0.0010 <0.0010 0.0019 1 <0.0010 <0.0010

Total Aluminium g/m3 <0.0032 - <0.0032 - <0.0032 -Total Antimony g/m3 <0.00021 - <0.00021 - <0.00021 -Total Arsenic g/m3 <0.0011 - <0.0011 - <0.0011 -Total Barium g/m3 <0.00011 - <0.00011 - <0.00011 -Total Beryllium g/m3 <0.00011 - <0.00011 - <0.00011 -Total Boron g/m3 <0.0053 - <0.0053 - <0.0053 -Total Cadmium g/m3 <0.000053 - <0.000053 - <0.000053 -Total Calcium g/m3 <0.053 - <0.053 - <0.053 -Total Chromium g/m3 <0.00053 - <0.00053 - <0.00053 -Total Copper g/m3 <0.00053 - <0.00053 - <0.00053 -Total Iron g/m3 <0.021 - <0.021 - <0.021 -Total Lead g/m3 <0.00011 - <0.00011 - <0.00011 -Total Lithium g/m3 <0.00021 - <0.00021 - <0.00021 -Total Magnesium g/m3 <0.021 - <0.021 - <0.021 -Total Manganese g/m3 <0.00053 - <0.00053 - <0.00053 -Total Mercury g/m3 <0.00008 - <0.00008 - <0.00008 -Total Molybdenum g/m3 <0.00021 - <0.00021 - <0.00021 -Total Nickel g/m3 <0.00053 - <0.00053 - <0.00053 -Total Potassium g/m3 <0.053 - <0.053 - <0.053 -Total Selenium g/m3 <0.0011 - <0.0011 - <0.0011 -Total Silver g/m3 <0.00011 - <0.00011 - <0.00011 -Total Sodium g/m3 <0.021 - <0.021 - <0.021 -Total Tin g/m3 <0.00053 - <0.00053 - <0.00053 -Total Uranium g/m3 <0.000021 - <0.000021 - <0.000021 -Total Zinc g/m3 <0.0011 - <0.0011 - <0.0011 -

Notes1. A detection of Dissolved Zinc was found in field blank sample BHB. The laboratory reanalysed the sample and confirmed the result. As the result meets project DQO, no further action was taken.

Dissolved Metals

Total Metals

Table D4: Results of Trip and Field Blank Analysis

September Monitoring Round October Monitoring Round November Monitoring Round



Appe

ndix E

Laboratory R

esults

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This Laboratory is accredited by International Accreditation New Zealand (IANZ), which represents New Zealand in the InternationalLaboratory Accreditation Cooperation (ILAC). Through the ILAC Mutual Recognition Arrangement (ILAC-MRA) this accreditation isinternationally recognised.The tests reported herein have been performed in accordance with the terms of accreditation, with the exception of tests marked *, whichare not accredited.

A N A L Y S I S R E P O R T Page 1 of 6

Client:Contact: A Rumsby

C/- Pattle Delamore Partners LtdPO Box 9528NewmarketAUCKLAND 1149

Pattle Delamore Partners Ltd Lab No:Date Registered:Date Reported:Quote No:Order No:Client Reference:Submitted By:

104485908-Sep-201221-Sep-201245622

AO2277604Chris Foote

SPv2

Sample Type: AqueousSample Name:

Lab Number:

SW306-Sep-2012

SW706-Sep-2012

SW506-Sep-2012

SW10006-Sep-2012

1044859.1 1044859.2 1044859.3 1044859.4 1044859.5

SW806-Sep-2012

Individual Tests

meq/L 3.6 - - 27 5.4Sum of Anionsmeq/L 3.5 - - 26 5.2Sum of Cations

pH Units 6.6 7.1 7.4 6.9 7.2pHg/m3 as CaCO3 23 - - 117 29Total Alkalinity

g/m3 at 25°C 28 - - 143 35BicarbonatemS/m 34.2 31.5 8.4 188.6 49.9Electrical Conductivity (EC)

g/m3 6 < 3 < 3 26 < 3Total Suspended Solidsg/m3 0.00036 0.00048 0.00012 < 0.0002 < 0.00010Dissolved Lanthanumg/m3 0.00047 0.00074 0.00014 < 0.00021 0.00017Total Lanthanumg/m3 9.0 - - 9.7 9.1Chlorideg/m3 < 0.002 - - < 0.002 < 0.002Nitrite-Ng/m3 0.145 - - 0.010 0.171Nitrate-Ng/m3 0.146 - - 0.012 0.171Nitrate-N + Nitrite-N

g/m3 as SiO2 10.2 - - 22 12.5Reactive Silicag/m3 139 - - 1,160 220Sulphate

Drinking water metals suite, dissolved, trace

g/m3 as CaCO3 88 118 23 1,170 220Total Hardnessg/m3 0.006 0.087 0.039 < 0.006 0.004Dissolved Aluminiumg/m3 0.0005 < 0.0002 < 0.0002 < 0.0004 0.0002 #1Dissolved Antimonyg/m3 < 0.0010 < 0.0010 < 0.0010 0.009 < 0.0010Dissolved Arsenicg/m3 0.027 #1 0.026 #1 0.0052 0.062 #1 0.031 #1Dissolved Bariumg/m3 < 0.00010 < 0.00010 < 0.00010 < 0.0002 < 0.00010Dissolved Berylliumg/m3 0.010 0.013 0.009 0.040 0.016 #1Dissolved Borong/m3 0.36 #1 0.027 < 0.00005 0.023 0.059 #1Dissolved Cadmiumg/m3 24 32 5.4 390 #1 69 #1Dissolved Calciumg/m3 < 0.0005 < 0.0005 < 0.0005 < 0.0010 < 0.0005Dissolved Chromiumg/m3 0.58 0.0105 0.0006 < 0.0010 0.0139Dissolved Copperg/m3 0.06 < 0.02 0.02 11.1 < 0.02Dissolved Irong/m3 0.0157 0.0067 < 0.00010 < 0.0002 0.0041Dissolved Leadg/m3 0.0057 0.0058 0.0006 0.039 0.0078Dissolved Lithiumg/m3 6.6 #1 9.0 2.2 50 12.2Dissolved Magnesiumg/m3 0.73 #1 0.29 0.0026 6.0 0.54Dissolved Manganeseg/m3 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008Dissolved Mercuryg/m3 < 0.0002 < 0.0002 < 0.0002 < 0.0004 < 0.0002Dissolved Molybdenumg/m3 0.0083 #1 0.0063 #1 < 0.0005 0.059 0.0104Dissolved Nickelg/m3 0.55 #1 1.02 0.55 1.82 0.78Dissolved Potassiumg/m3 < 0.005 < 0.0010 < 0.0010 < 0.002 < 0.0010Dissolved Selenium


Lab Number:

SW306-Sep-2012

SW706-Sep-2012

SW506-Sep-2012

SW10006-Sep-2012

1044859.1 1044859.2 1044859.3 1044859.4 1044859.5

SW806-Sep-2012


g/m3 < 0.00010 < 0.00010 < 0.00010 < 0.0002 < 0.00010Dissolved Silverg/m3 6.8 10.5 7.2 26 10.6Dissolved Sodiumg/m3 < 0.0005 < 0.0005 < 0.0005 < 0.0010 < 0.0005Dissolved Ting/m3 < 0.00002 < 0.00002 < 0.00002 < 0.00004 < 0.00002Dissolved Uraniumg/m3 45 #1 4.0 < 0.0010 14.3 8.7Dissolved Zinc

Drinking water metals suite, totals, trace

g/m3 0.33 0.27 0.078 < 0.0063 0.029Total Aluminiumg/m3 0.00055 < 0.00021 < 0.00021 < 0.00042 < 0.00021 #1Total Antimonyg/m3 0.0016 < 0.0011 < 0.0011 0.0143 < 0.0011Total Arsenicg/m3 0.024 #1 0.025 #1 0.0052 0.057 #1 0.029 #1Total Bariumg/m3 < 0.00011 < 0.00011 < 0.00011 < 0.00021 < 0.00011Total Berylliumg/m3 0.0103 0.0149 0.0092 0.050 0.0152 #1Total Borong/m3 0.31 #1 0.027 < 0.000053 0.023 0.057 #1Total Cadmiumg/m3 24 33 5.5 380 66 #1Total Calciumg/m3 < 0.00053 < 0.00053 < 0.00053 < 0.0011 < 0.00053Total Chromiumg/m3 0.91 0.0198 0.00058 < 0.0011 0.056Total Copperg/m3 1.25 0.084 0.058 13.7 0.52Total Irong/m3 0.165 0.022 0.00016 0.00136 0.044Total Leadg/m3 0.0058 0.0065 0.00070 0.044 0.0082Total Lithiumg/m3 6.4 #1 9.7 2.2 54 13.1Total Magnesiumg/m3 0.70 #1 0.30 0.0042 6.2 0.55Total Manganeseg/m3 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008Total Mercuryg/m3 < 0.00021 < 0.00021 < 0.00021 < 0.00042 < 0.00021Total Molybdenumg/m3 0.0080 #1 0.0062 #1 < 0.00053 0.065 0.0106Total Nickelg/m3 0.54 #1 1.05 0.56 1.88 0.79Total Potassiumg/m3 0.0055 < 0.0011 < 0.0011 < 0.0021 < 0.0011Total Seleniumg/m3 < 0.00011 < 0.00011 < 0.00011 < 0.00022 < 0.00011Total Silverg/m3 7.1 11.4 7.3 30 11.3Total Sodiumg/m3 < 0.00053 < 0.00053 < 0.00053 < 0.0011 < 0.00053Total Ting/m3 < 0.000021 < 0.000021 < 0.000021 < 0.000042 < 0.000021Total Uraniumg/m3 44 #1 4.0 < 0.0011 16.1 8.8Total Zinc

Sample Name:

Lab Number:

SW10106-Sep-2012

BHA 06-Sep-2012 BHC06-Sep-2012

1044859.6 1044859.7 1044859.8 1044859.9

BHB 06-Sep-2012

Individual Tests

meq/L 0.94 3.6 < 0.07 - -Sum of Anionsmeq/L 0.90 3.3 < 0.05 - -Sum of Cations

pH Units 7.3 6.7 6.6 - -pHg/m3 as CaCO3 12.3 22 2.2 - -Total Alkalinity

g/m3 at 25°C 15.0 27 2.7 - -BicarbonatemS/m 9.9 32.3 0.1 - -Electrical Conductivity (EC)

g/m3 < 3 5 < 3 - -Total Suspended Solidsg/m3 < 0.00010 0.00033 < 0.00010 < 0.00010 -Dissolved Lanthanumg/m3 < 0.00011 0.00048 < 0.00011 - -Total Lanthanumg/m3 10.2 8.9 < 0.5 - -Chlorideg/m3 < 0.002 < 0.002 < 0.002 - -Nitrite-Ng/m3 0.171 0.146 < 0.002 - -Nitrate-Ng/m3 0.172 0.146 < 0.002 - -Nitrate-N + Nitrite-N

g/m3 as SiO2 10.8 10.1 < 0.10 - -Reactive Silicag/m3 19.0 138 < 0.5 - -Sulphate


g/m3 as CaCO3 24 83 < 1.0 < 1.0 -Total Hardnessg/m3 0.013 0.006 < 0.003 < 0.003 -Dissolved Aluminiumg/m3 0.0003 0.0005 < 0.0002 < 0.0002 -Dissolved Antimonyg/m3 < 0.0010 < 0.0010 < 0.0010 < 0.0010 -Dissolved Arsenic

Lab No: 1044859 v 2 Hill Laboratories Page 2 of 6


Lab Number:

SW10106-Sep-2012

BHA 06-Sep-2012 BHC06-Sep-2012

1044859.6 1044859.7 1044859.8 1044859.9

BHB 06-Sep-2012


g/m3 0.0165 #1 0.026 #1 < 0.00010 < 0.00010 -Dissolved Bariumg/m3 < 0.00010 < 0.00010 < 0.00010 < 0.00010 -Dissolved Berylliumg/m3 0.011 #1 0.012 #1 < 0.005 < 0.005 -Dissolved Borong/m3 0.0153 #1 0.34 < 0.00005 < 0.00005 -Dissolved Cadmiumg/m3 6.2 #1 23 < 0.05 < 0.05 -Dissolved Calciumg/m3 < 0.0005 < 0.0005 < 0.0005 < 0.0005 -Dissolved Chromiumg/m3 0.0074 0.54 < 0.0005 < 0.0005 -Dissolved Copperg/m3 < 0.02 0.05 < 0.02 < 0.02 -Dissolved Irong/m3 0.149 0.0166 < 0.00010 < 0.00010 -Dissolved Leadg/m3 0.0016 0.0058 #1 < 0.0002 < 0.0002 -Dissolved Lithiumg/m3 2.2 6.4 #1 < 0.02 < 0.02 -Dissolved Magnesiumg/m3 0.0016 0.68 < 0.0005 < 0.0005 -Dissolved Manganeseg/m3 < 0.00008 < 0.00008 < 0.00008 < 0.00008 -Dissolved Mercuryg/m3 < 0.0002 < 0.0002 < 0.0002 < 0.0002 -Dissolved Molybdenumg/m3 0.0011 #1 0.0074 < 0.0005 < 0.0005 -Dissolved Nickelg/m3 0.63 #1 0.54 #1 < 0.05 < 0.05 -Dissolved Potassiumg/m3 < 0.0010 < 0.005 < 0.0010 < 0.0010 -Dissolved Seleniumg/m3 < 0.00010 < 0.00010 < 0.00010 < 0.00010 -Dissolved Silverg/m3 7.7 6.8 #1 < 0.02 < 0.02 -Dissolved Sodiumg/m3 < 0.0005 < 0.0005 < 0.0005 < 0.0005 -Dissolved Ting/m3 < 0.00002 < 0.00002 < 0.00002 < 0.00002 -Dissolved Uraniumg/m3 1.83 #1 42 < 0.0010 < 0.0010 -Dissolved Zinc


g/m3 0.0153 0.34 < 0.0032 - -Total Aluminiumg/m3 0.00028 0.00060 < 0.00021 - -Total Antimonyg/m3 < 0.0011 0.0018 < 0.0011 - -Total Arsenicg/m3 0.0147 #1 0.025 #1 < 0.00011 - -Total Bariumg/m3 < 0.00011 < 0.00011 < 0.00011 - -Total Berylliumg/m3 0.0110 #1 0.0110 #1 < 0.0053 - -Total Borong/m3 0.0147 #1 0.34 < 0.000053 - -Total Cadmiumg/m3 6.1 #1 23 < 0.053 - -Total Calciumg/m3 < 0.00053 < 0.00053 < 0.00053 - -Total Chromiumg/m3 0.0080 0.83 < 0.00053 - -Total Copperg/m3 < 0.021 1.36 < 0.021 - -Total Irong/m3 0.153 0.170 < 0.00011 - -Total Leadg/m3 0.00173 0.0057 #1 < 0.00021 - -Total Lithiumg/m3 2.2 6.2 #1 < 0.021 - -Total Magnesiumg/m3 0.00184 0.72 < 0.00053 - -Total Manganeseg/m3 < 0.00008 < 0.00008 < 0.00008 - -Total Mercuryg/m3 < 0.00021 0.00024 < 0.00021 - -Total Molybdenumg/m3 0.00101 #1 0.0077 < 0.00053 - -Total Nickelg/m3 0.62 #1 0.50 #1 < 0.053 - -Total Potassiumg/m3 < 0.0011 0.0023 < 0.0011 - -Total Seleniumg/m3 < 0.00011 < 0.00011 < 0.00011 - -Total Silverg/m3 8.0 6.5 #1 < 0.021 - -Total Sodiumg/m3 < 0.00053 < 0.00053 < 0.00053 - -Total Ting/m3 < 0.000021 < 0.000021 < 0.000021 - -Total Uraniumg/m3 1.75 #1 42 < 0.0011 - -Total Zinc


Analyst's CommentsAmended Report: This report which replaces an earlier report issued on the 20/9/12. The total arsenic result for sample1044859.1 has been corrected.

#1 It has been noted that the result for the dissolved fraction was greater than that for the total fraction, but within analyticalvariation of the methods.

The following table(s) gives a brief description of the methods used to conduct the analyses for this job. The detection limits given below are those attainable in a relatively clean matrix.Detection limits may be higher for individual samples should insufficient sample be available, or if the matrix requires that dilutions be performed during analysis.

S U M M A R Y O F M E T H O D S

Sample Type: AqueousTest Method Description Default Detection Limit SamplesIndividual Tests

1, 4-8Filtration, Unpreserved Sample filtration through 0.45µm membrane filter. -

1-8Total Digestion Boiling nitric acid digestion. APHA 3030 E 21st ed. 2005. -

1-8Total acid digest for Silver analysis Boiling nitric / hydrochloric acid digestion (5:1 ratio). APHA 3030F (modified) 21st ed. 2005.

-

1, 4-8Total anions for anion/cation balancecheck

Calculation: sum of anions as mEquiv/L. 0.07 meq/L

1, 4-8Total cations for anion/cation balancecheck

Calculation: sum of cations as mEquiv/L. 0.05 meq/L

1-8pH pH meter. APHA 4500-H+ B 21st ed. 2005. 0.1 pH Units

1, 4-8Total Alkalinity Titration to pH 4.5 (M-alkalinity), autotitrator. APHA 2320 B(Modified for alk <20) 21st ed. 2005.

1.0 g/m3 as CaCO3

1, 4-8Bicarbonate Calculation: from alkalinity and pH, valid where TDS is not >500mg/L and alkalinity is almost entirely due to hydroxides,carbonates or bicarbonates. APHA 4500-CO2 D 21st ed. 2005.

1.0 g/m3 at 25°C

1-8Electrical Conductivity (EC) Conductivity meter, 25°C. APHA 2510 B 21st ed. 2005. 0.1 mS/m

1-8Total Suspended Solids Filtration using Whatman 934 AH, Advantec GC-50 orequivalent filters (nominal pore size 1.2 - 1.5µm), gravimetricdetermination. APHA 2540 D 21st ed. 2005.

3 g/m3

1-9Dissolved Lanthanum Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-8Total Lanthanum Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00011 g/m3

1, 4-8Chloride Filtered sample. Ferric thiocyanate colorimetry. DiscreteAnalyser. APHA 4500 Cl- E (modified from continuous flowanalysis) 21st ed. 2005.

0.5 g/m3

1, 4-8Nitrite-N Automated Azo dye colorimetry, Flow injection analyser. APHA4500-NO3- I (Modified) 21st ed. 2005.

0.002 g/m3

1, 4-8Nitrate-N Calculation: (Nitrate-N + Nitrite-N) - NO2N. 0.002 g/m3

1, 4-8Nitrate-N + Nitrite-N Total oxidised nitrogen. Automated cadmium reduction, flowinjection analyser. APHA 4500-NO3- I (Modified) 21st ed. 2005.

0.002 g/m3

1, 4-8Reactive Silica Filtered sample. Heteropoly blue colorimetry. Discrete analyser.APHA 4500-SiO2 F (modified from flow injection analysis) 21st

ed. 2005.

0.10 g/m3 as SiO2

1, 4-8Sulphate Filtered sample. Ion Chromatography. APHA 4110 B 21st ed.2005.

0.5 g/m3


1-9Total Hardness Calculation from Calcium and Magnesium. APHA 2340 B 21sted. 2005.

1.0 g/m3 as CaCO3

1-9Dissolved Aluminium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.003 g/m3

1-9Dissolved Antimony Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0002 g/m3

1-9Dissolved Arsenic Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0010 g/m3

1-9Dissolved Barium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-9Dissolved Beryllium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-9Dissolved Boron Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.005 g/m3

1-9Dissolved Cadmium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00005 g/m3

1-9Dissolved Calcium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.05 g/m3

1-9Dissolved Chromium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-9Dissolved Copper Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-9Dissolved Iron Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.02 g/m3

1-9Dissolved Lead Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3


Sample Type: AqueousTest Method Description Default Detection Limit Samples

1-9Dissolved Lithium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0002 g/m3

1-9Dissolved Magnesium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.02 g/m3

1-9Dissolved Manganese Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-9Dissolved Mercury 0.45µm filtration, bromine oxidation followed by atomicfluorescence. US EPA Method 245.7, Feb 2005.

0.00008 g/m3

1-9Dissolved Molybdenum Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0002 g/m3

1-9Dissolved Nickel Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-9Dissolved Potassium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.05 g/m3

1-9Dissolved Selenium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0010 g/m3

1-9Dissolved Silver Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-9Dissolved Sodium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.02 g/m3

1-9Dissolved Tin Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-9Dissolved Uranium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00002 g/m3

1-9Dissolved Zinc Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0010 g/m3


1-8Total Aluminium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0032 g/m3

1-8Total Antimony Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00021 g/m3

1-8Total Arsenic Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0011 g/m3

1-8Total Barium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00011 g/m3

1-8Total Beryllium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00011 g/m3

1-8Total Boron Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0053 g/m3

1-8Total Cadmium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.000053 g/m3

1-8Total Calcium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.053 g/m3

1-8Total Chromium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-8Total Copper Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-8Total Iron Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.021 g/m3

1-8Total Lead Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00011 g/m3

1-8Total Lithium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00021 g/m3

1-8Total Magnesium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.021 g/m3

1-8Total Manganese Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-8Total Mercury Bromine Oxidation followed by Atomic Fluorescence. US EPAMethod 245.7, Feb 2005.

0.00008 g/m3

1-8Total Molybdenum Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00021 g/m3

1-8Total Nickel Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-8Total Potassium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.053 g/m3

1-8Total Selenium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0011 g/m3



1-8Total Silver Boiling nitric / hydrochloric acid digestion (5:1 ratio), ICP-MS,trace level. APHA 3125 B 21st ed. 2005.

0.00011 g/m3

1-8Total Sodium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.021 g/m3

1-8Total Tin Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00053 g/m3

1-8Total Uranium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.000021 g/m3

1-8Total Zinc Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0011 g/m3


These samples were collected by yourselves (or your agent) and analysed as received at the laboratory.

Samples are held at the laboratory after reporting for a length of time depending on the preservation used and the stability ofthe analytes being tested. Once the storage period is completed the samples are discarded unless otherwise advised by theclient.

This report must not be reproduced, except in full, without the written consent of the signatory.

Ara Heron BSc (Tech)Client Services Manager - Environmental Division


+64 7 858 2000+64 7 858 [email protected]

TelFaxEmailWeb






106029718-Oct-201207-Nov-201245622

AO2277608Chris Foote

SPv2


Lab Number:

SW3 17-Oct-20122:10 pm

SW5 17-Oct-2012 SW8 17-Oct-201210:00 am

SW10017-Oct-2012

1060297.1 1060297.2 1060297.3 1060297.4 1060297.5

SW7 17-Oct-201210:10 am

Individual Tests

meq/L 1.53 27 - - 7.7Sum of Anionsmeq/L 1.55 26 - - 7.3Sum of Cations

pH Units 7.0 7.2 6.9 6.9 6.9pHg/m3 as CaCO3 26 116 - - 32Total Alkalinity

g/m3 at 25°C 32 142 - - 39BicarbonatemS/m 15.2 183.0 40.1 8.7 64.8Electrical Conductivity (EC)

g/m3 < 3 28 < 3 < 3 < 3Total Suspended Solidsg/m3 < 0.00010 < 0.0002 0.00042 < 0.00010 < 0.00010Dissolved Lanthanumg/m3 0.00013 < 0.00021 0.00064 0.00012 0.00020Total Lanthanumg/m3 8.1 9.5 - - 9.2Chlorideg/m3 < 0.002 < 0.010 - - < 0.002Nitrite-Ng/m3 0.147 0.013 - - 0.111Nitrate-Ng/m3 0.147 0.013 - - 0.111Nitrate-N + Nitrite-N

g/m3 as SiO2 9.7 24 - - 14.0Reactive Silicag/m3 37 1,190 - - 320Sulphate


g/m3 as CaCO3 54 1,190 154 23 320Total Hardnessg/m3 0.021 < 0.006 0.082 0.020 < 0.003Dissolved Aluminiumg/m3 0.0003 < 0.0004 < 0.0002 < 0.0002 0.0002Dissolved Antimonyg/m3 < 0.0010 0.009 < 0.0010 < 0.0010 < 0.0010Dissolved Arsenicg/m3 0.0182 0.052 0.026 0.0050 0.030Dissolved Bariumg/m3 < 0.00010 < 0.0002 < 0.00010 < 0.00010 < 0.00010Dissolved Berylliumg/m3 0.009 0.048 0.016 0.008 0.020 #1Dissolved Borong/m3 0.040 0.024 0.023 < 0.00005 0.032Dissolved Cadmiumg/m3 16.2 #1 380 43 5.9 100Dissolved Calciumg/m3 < 0.0005 < 0.0010 < 0.0005 < 0.0005 < 0.0005Dissolved Chromiumg/m3 0.079 < 0.0010 0.0073 < 0.0005 0.0046Dissolved Copperg/m3 0.06 11.4 < 0.02 < 0.02 < 0.02Dissolved Irong/m3 0.033 < 0.0002 0.0040 < 0.00010 0.00184Dissolved Leadg/m3 0.0027 #1 0.043 0.0066 0.0006 0.0116 #1Dissolved Lithiumg/m3 3.3 #1 55 #1 11.2 2.1 17.7 #1Dissolved Magnesiumg/m3 0.170 #1 6.2 0.28 0.0014 0.83 #1Dissolved Manganeseg/m3 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008Dissolved Mercuryg/m3 < 0.0002 < 0.0004 < 0.0002 < 0.0002 < 0.0002Dissolved Molybdenumg/m3 0.0011 0.058 0.0062 < 0.0005 0.0131Dissolved Nickelg/m3 0.41 1.68 0.97 0.42 0.82Dissolved Potassiumg/m3 < 0.0010 < 0.002 < 0.0010 < 0.0010 < 0.0010Dissolved Selenium


Lab Number:

SW3 17-Oct-20122:10 pm

SW5 17-Oct-2012 SW8 17-Oct-201210:00 am

SW10017-Oct-2012

1060297.1 1060297.2 1060297.3 1060297.4 1060297.5

SW7 17-Oct-201210:10 am


g/m3 < 0.00010 < 0.0002 < 0.00010 < 0.00010 < 0.00010Dissolved Silverg/m3 6.1 #1 27 11.3 6.7 13.5 #1Dissolved Sodiumg/m3 < 0.0005 < 0.0010 < 0.0005 < 0.0005 < 0.0005Dissolved Ting/m3 < 0.00002 < 0.00004 < 0.00002 < 0.00002 < 0.00002Dissolved Uraniumg/m3 5.9 #1 15.0 3.3 < 0.0010 5.8Dissolved Zinc


g/m3 0.069 < 0.0063 0.164 0.053 0.0118Total Aluminiumg/m3 0.00031 < 0.00042 < 0.00021 < 0.00021 0.00022Total Antimonyg/m3 < 0.0011 0.0146 < 0.0011 < 0.0011 < 0.0011Total Arsenicg/m3 0.0187 0.056 0.028 0.0059 0.032Total Bariumg/m3 < 0.00011 < 0.00021 < 0.00011 < 0.00011 < 0.00011Total Berylliumg/m3 0.0095 0.049 0.0164 0.0096 0.0184 #1Total Borong/m3 0.043 0.028 0.025 < 0.000053 0.035Total Cadmiumg/m3 14.7 #1 410 44 6.2 101Total Calciumg/m3 < 0.00053 < 0.0011 < 0.00053 < 0.00053 < 0.00053Total Chromiumg/m3 0.149 < 0.0011 0.0104 0.00056 0.0188Total Copperg/m3 0.57 14.7 0.058 0.053 0.92Total Irong/m3 0.163 0.00141 0.0131 0.00022 0.039Total Leadg/m3 0.0026 #1 0.045 0.0072 0.00067 0.0103 #1Total Lithiumg/m3 3.0 #1 52 #1 11.2 2.3 16.6 #1Total Magnesiumg/m3 0.160 #1 6.2 0.30 0.0036 0.81 #1Total Manganeseg/m3 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008Total Mercuryg/m3 0.00021 < 0.00042 < 0.00021 < 0.00021 < 0.00021Total Molybdenumg/m3 0.00139 0.064 0.0072 < 0.00053 0.0136Total Nickelg/m3 0.42 1.85 1.09 0.53 0.87Total Potassiumg/m3 < 0.0011 < 0.0021 < 0.0011 < 0.0011 < 0.0011Total Seleniumg/m3 < 0.00011 < 0.0011 #2 < 0.00011 < 0.00011 < 0.00011Total Silverg/m3 6.0 #1 28 11.5 7.0 12.9 #1Total Sodiumg/m3 < 0.00053 < 0.0011 < 0.00053 < 0.00053 < 0.00053Total Ting/m3 < 0.000021 < 0.000042 < 0.000021 < 0.000021 < 0.000021Total Uraniumg/m3 5.6 #1 16.3 3.6 0.0045 6.1Total Zinc

Sample Name:

Lab Number:

SW10117-Oct-2012

BHA 17-Oct-201212:10 pm

BHC 17-Oct-2012

1060297.6 1060297.7 1060297.8 1060297.9

BHB 17-Oct-2012

Individual Tests

meq/L 1.03 < 0.07 - 27 -Sum of Anionsmeq/L 0.91 < 0.05 - 25 -Sum of Cations

pH Units 6.5 5.7 - 6.9 -pHg/m3 as CaCO3 11.5 2.2 - 116 -Total Alkalinity

g/m3 at 25°C 14.0 2.7 - 141 -BicarbonatemS/m 11.1 0.1 - 185.3 -Electrical Conductivity (EC)

g/m3 < 3 - - 28 -Total Suspended Solidsg/m3 < 0.00010 < 0.00010 - < 0.0002 -Dissolved Lanthanumg/m3 < 0.00011 < 0.00011 - < 0.00021 -Total Lanthanumg/m3 10.1 < 0.5 - 9.4 -Chlorideg/m3 < 0.002 < 0.002 - < 0.010 -Nitrite-Ng/m3 0.155 < 0.002 - 0.010 -Nitrate-Ng/m3 0.155 < 0.002 - 0.011 -Nitrate-N + Nitrite-N

g/m3 as SiO2 12.0 - - 24 -Reactive Silicag/m3 24 < 0.5 - 1,200 -Sulphate


g/m3 as CaCO3 26 < 1.0 < 1.0 1,150 -Total Hardnessg/m3 0.005 < 0.003 < 0.003 < 0.006 -Dissolved Aluminiumg/m3 0.0003 < 0.0002 < 0.0002 < 0.0004 -Dissolved Antimonyg/m3 < 0.0010 < 0.0010 < 0.0010 0.010 -Dissolved Arsenic



Lab Number:

SW10117-Oct-2012

BHA 17-Oct-201212:10 pm

BHC 17-Oct-2012

1060297.6 1060297.7 1060297.8 1060297.9

BHB 17-Oct-2012


g/m3 0.0159 < 0.00010 < 0.00010 0.052 -Dissolved Bariumg/m3 < 0.00010 < 0.00010 < 0.00010 < 0.0002 -Dissolved Berylliumg/m3 0.011 < 0.005 < 0.005 0.051 #1 -Dissolved Borong/m3 0.0150 < 0.00005 < 0.00005 0.024 -Dissolved Cadmiumg/m3 6.7 < 0.05 < 0.05 370 -Dissolved Calciumg/m3 < 0.0005 < 0.0005 < 0.0005 < 0.0010 -Dissolved Chromiumg/m3 0.0051 < 0.0005 < 0.0005 0.0019 #3 -Dissolved Copperg/m3 < 0.02 < 0.02 < 0.02 11.4 -Dissolved Irong/m3 0.145 < 0.00010 < 0.00010 < 0.0002 -Dissolved Leadg/m3 0.0017 < 0.0002 < 0.0002 0.044 -Dissolved Lithiumg/m3 2.3 < 0.02 < 0.02 54 -Dissolved Magnesiumg/m3 0.0011 < 0.0005 < 0.0005 6.1 -Dissolved Manganeseg/m3 < 0.00008 < 0.00008 < 0.00008 < 0.00008 -Dissolved Mercuryg/m3 < 0.0002 < 0.0002 < 0.0002 < 0.0004 -Dissolved Molybdenumg/m3 0.0011 < 0.0005 < 0.0005 0.059 -Dissolved Nickelg/m3 0.55 < 0.05 < 0.05 1.63 -Dissolved Potassiumg/m3 < 0.0010 < 0.0010 < 0.0010 < 0.002 -Dissolved Seleniumg/m3 < 0.00010 < 0.00010 < 0.00010 < 0.0002 -Dissolved Silverg/m3 7.4 < 0.02 < 0.02 27 -Dissolved Sodiumg/m3 < 0.0005 < 0.0005 < 0.0005 < 0.0010 -Dissolved Ting/m3 < 0.00002 < 0.00002 < 0.00002 < 0.00004 -Dissolved Uraniumg/m3 1.76 < 0.0010 0.0019 15.1 -Dissolved Zinc


g/m3 0.0067 < 0.0032 - < 0.0063 -Total Aluminiumg/m3 0.00034 < 0.00021 - < 0.00042 -Total Antimonyg/m3 < 0.0011 < 0.0011 - 0.0136 -Total Arsenicg/m3 0.0171 < 0.00011 - 0.058 -Total Bariumg/m3 < 0.00011 < 0.00011 - < 0.00021 -Total Berylliumg/m3 0.0117 < 0.0053 - 0.048 #1 -Total Borong/m3 0.0160 < 0.000053 - 0.028 -Total Cadmiumg/m3 7.1 < 0.053 - 420 -Total Calciumg/m3 < 0.00053 < 0.00053 - < 0.0011 -Total Chromiumg/m3 0.0053 < 0.00053 - < 0.0011 #3 -Total Copperg/m3 < 0.021 < 0.021 - 14.8 -Total Irong/m3 0.161 < 0.00011 - 0.00146 -Total Leadg/m3 0.0021 < 0.00021 - 0.046 -Total Lithiumg/m3 2.5 < 0.021 - 54 -Total Magnesiumg/m3 0.00122 < 0.00053 - 6.4 -Total Manganeseg/m3 < 0.00008 < 0.00008 - < 0.00008 -Total Mercuryg/m3 < 0.00021 < 0.00021 - < 0.00042 -Total Molybdenumg/m3 0.00113 < 0.00053 - 0.065 -Total Nickelg/m3 0.66 < 0.053 - 1.91 -Total Potassiumg/m3 < 0.0011 < 0.0011 - 0.0023 -Total Seleniumg/m3 < 0.00011 < 0.00011 - < 0.0011 #2 -Total Silverg/m3 7.9 < 0.021 - 28 -Total Sodiumg/m3 < 0.00053 < 0.00053 - < 0.0011 -Total Ting/m3 < 0.000021 < 0.000021 - < 0.000042 -Total Uraniumg/m3 1.82 < 0.0011 - 16.2 -Total Zinc


Analyst's CommentsAmended Report: This report which replaces an earlier report issued on the 26/10/12. Following a client query[QOWQ46663], the dissolved copper analysis was repeated for sample 1060297.2. It was found that spot contaminationhad occurred in the initial analysis and the repeated result is now reported. The sample 1060297.9 was also checked butthis result confirmed.


#2 Due to the matrix of the sample, a further dilution was performed prior to analysis, resulting in a detection limit higherthan that normally achieved.

#3 It has been noted that the result for the dissolved fraction was greater than that for the total fraction, but within analyticalvariation of the methods. Confirmed by re-analysis.





1-2, 5-7, 9Filtration, Unpreserved Sample filtration through 0.45µm membrane filter. -

1-7, 9Total Digestion Boiling nitric acid digestion. APHA 3030 E 21st ed. 2005. -

1-7, 9Total acid digest for Silver analysis Boiling nitric / hydrochloric acid digestion (5:1 ratio). APHA 3030F (modified) 21st ed. 2005.

-

1-2, 5-7, 9Total anions for anion/cation balancecheck


1-2, 5-7, 9Total cations for anion/cation balancecheck


1-7, 9pH pH meter. APHA 4500-H+ B 21st ed. 2005. 0.1 pH Units

1-2, 5-7, 9Total Alkalinity Titration to pH 4.5 (M-alkalinity), autotitrator. APHA 2320 B(Modified for alk <20) 21st ed. 2005.

1.0 g/m3 as CaCO3

1-2, 5-7, 9Bicarbonate Calculation: from alkalinity and pH, valid where TDS is not >500mg/L and alkalinity is almost entirely due to hydroxides,carbonates or bicarbonates. APHA 4500-CO2 D 21st ed. 2005.

1.0 g/m3 at 25°C

1-7, 9Electrical Conductivity (EC) Conductivity meter, 25°C. APHA 2510 B 21st ed. 2005. 0.1 mS/m

1-6, 9Total Suspended Solids Filtration using Whatman 934 AH, Advantec GC-50 orequivalent filters (nominal pore size 1.2 - 1.5µm), gravimetricdetermination. APHA 2540 D 21st ed. 2005.

3 g/m3

1-7, 9Dissolved Lanthanum Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-7, 9Total Lanthanum Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00011 g/m3

1-2, 5-7, 9Chloride Filtered sample. Ferric thiocyanate colorimetry. DiscreteAnalyser. APHA 4500 Cl- E (modified from continuous flowanalysis) 21st ed. 2005.

0.5 g/m3

1-2, 5-7, 9Nitrite-N Automated Azo dye colorimetry, Flow injection analyser. APHA4500-NO3- I (Modified) 21st ed. 2005.

0.002 g/m3

1-2, 5-7, 9Nitrate-N Calculation: (Nitrate-N + Nitrite-N) - NO2N. 0.002 g/m3

1-2, 5-7, 9Nitrate-N + Nitrite-N Total oxidised nitrogen. Automated cadmium reduction, flowinjection analyser. APHA 4500-NO3- I (Modified) 21st ed. 2005.

0.002 g/m3

1-2, 5-6, 9Reactive Silica Filtered sample. Heteropoly blue colorimetry. Discrete analyser.APHA 4500-SiO2 F (modified from flow injection analysis) 21st

ed. 2005.

0.10 g/m3 as SiO2

1-2, 5-7, 9Sulphate Filtered sample. Ion Chromatography. APHA 4110 B 21st ed.2005.

0.5 g/m3


1-9Total Hardness Calculation from Calcium and Magnesium. APHA 2340 B 21sted. 2005.

1.0 g/m3 as CaCO3

1-9Dissolved Aluminium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.003 g/m3

1-9Dissolved Antimony Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0002 g/m3

1-9Dissolved Arsenic Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0010 g/m3

1-9Dissolved Barium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3


1-9Dissolved Beryllium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-9Dissolved Boron Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.005 g/m3

1-9Dissolved Cadmium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00005 g/m3

1-9Dissolved Calcium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.05 g/m3

1-9Dissolved Chromium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-9Dissolved Copper Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-9Dissolved Iron Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.02 g/m3

1-9Dissolved Lead Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-9Dissolved Lithium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0002 g/m3

1-9Dissolved Magnesium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.02 g/m3

1-9Dissolved Manganese Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-9Dissolved Mercury 0.45µm filtration, bromine oxidation followed by atomicfluorescence. US EPA Method 245.7, Feb 2005.

0.00008 g/m3

1-9Dissolved Molybdenum Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0002 g/m3

1-9Dissolved Nickel Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-9Dissolved Potassium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.05 g/m3

1-9Dissolved Selenium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0010 g/m3

1-9Dissolved Silver Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-9Dissolved Sodium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.02 g/m3

1-9Dissolved Tin Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-9Dissolved Uranium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00002 g/m3

1-9Dissolved Zinc Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0010 g/m3


1-7, 9Total Aluminium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0032 g/m3

1-7, 9Total Antimony Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00021 g/m3

1-7, 9Total Arsenic Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0011 g/m3

1-7, 9Total Barium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00011 g/m3

1-7, 9Total Beryllium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00011 g/m3

1-7, 9Total Boron Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0053 g/m3

1-7, 9Total Cadmium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.000053 g/m3

1-7, 9Total Calcium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.053 g/m3

1-7, 9Total Chromium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-7, 9Total Copper Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-7, 9Total Iron Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.021 g/m3

1-7, 9Total Lead Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00011 g/m3



1-7, 9Total Lithium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00021 g/m3

1-7, 9Total Magnesium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.021 g/m3

1-7, 9Total Manganese Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-7, 9Total Mercury Bromine Oxidation followed by Atomic Fluorescence. US EPAMethod 245.7, Feb 2005.

0.00008 g/m3

1-7, 9Total Molybdenum Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00021 g/m3

1-7, 9Total Nickel Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-7, 9Total Potassium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.053 g/m3

1-7, 9Total Selenium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0011 g/m3

1-7, 9Total Silver Boiling nitric / hydrochloric acid digestion (5:1 ratio), ICP-MS,trace level. APHA 3125 B 21st ed. 2005.

0.00011 g/m3

1-7, 9Total Sodium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.021 g/m3

1-7, 9Total Tin Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00053 g/m3

1-7, 9Total Uranium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.000021 g/m3

1-7, 9Total Zinc Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0011 g/m3





Ara Heron BSc (Tech)Client Services Manager - Environmental Division


+64 7 858 2000+64 7 858 [email protected]

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107061117-Nov-201207-Dec-201245622

AO2277608A Rumsby

SPv3


Lab Number:

SW715-Nov-2012

SW815-Nov-2012

SW10115-Nov-2012

SW315-Nov-2012

1070611.1 1070611.2 1070611.4 1070611.5 1070611.6

SW100a15-Nov-2012

Individual Tests

meq/L - - 10.0 1.05 2.5Sum of Anionsmeq/L - - 9.8 1.05 2.6Sum of Cations

pH Units 6.8 7.2 7.1 7.1 7.4pHg/m3 as CaCO3 - - 36 11.2 58Total Alkalinity

g/m3 at 25°C - - 44 13.6 71BicarbonatemS/m 49.9 10.6 86.4 11.4 25.1Electrical Conductivity (EC)

g/m3 < 3 < 3 18 < 3 3Total Suspended Solidsg/m3 0.00051 < 0.00010 < 0.00010 0.00013 < 0.00010Dissolved Lanthanumg/m3 0.00084 < 0.00011 0.00057 0.00014 < 0.00011Total Lanthanumg/m3 - - 9.3 9.6 8.0Chlorideg/m3 - - < 0.002 < 0.002 < 0.002Nitrite-Ng/m3 - - 0.066 0.112 0.038Nitrate-Ng/m3 - - 0.066 0.113 0.038Nitrate-N + Nitrite-N

g/m3 as SiO2 - - 13.8 11.5 10.9Reactive Silicag/m3 - - 430 26 55Sulphate


g/m3 as CaCO3 230 31 440 30 101Total Hardnessg/m3 0.080 0.020 < 0.003 0.015 0.008Dissolved Aluminiumg/m3 0.0002 < 0.0002 0.0003 0.0003 0.0004Dissolved Antimonyg/m3 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010Dissolved Arsenicg/m3 0.033 0.0066 0.038 0.0166 #1 0.028Dissolved Bariumg/m3 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010Dissolved Berylliumg/m3 0.019 #1 0.009 0.023 #1 0.012 0.011 #1Dissolved Borong/m3 0.028 < 0.00005 0.035 0.0130 #1 0.053Dissolved Cadmiumg/m3 64 #1 7.9 #1 135 #1 7.8 #1 31 #1Dissolved Calciumg/m3 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005Dissolved Chromiumg/m3 0.0074 < 0.0005 0.0062 0.0101 0.067Dissolved Copperg/m3 < 0.02 < 0.02 < 0.02 < 0.02 < 0.02Dissolved Irong/m3 0.0029 < 0.00010 0.00135 0.194 0.0075Dissolved Leadg/m3 0.0093 #1 0.0007 #1 0.0129 #1 0.0023 #1 0.0051 #1Dissolved Lithiumg/m3 16.0 #1 2.8 #1 25 #1 2.7 #1 5.6 #1Dissolved Magnesiumg/m3 0.36 #1 0.0012 0.97 #1 0.0013 0.31Dissolved Manganeseg/m3 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008Dissolved Mercuryg/m3 0.0002 < 0.0002 < 0.0002 < 0.0002 0.0003Dissolved Molybdenumg/m3 0.0078 < 0.0005 0.0167 #1 0.0012 0.0017 #1Dissolved Nickelg/m3 1.21 0.55 1.14 0.81 #1 0.57 #1Dissolved Potassiumg/m3 < 0.0010 < 0.0010 < 0.0010 < 0.0010 < 0.0010Dissolved Selenium


Lab Number:

SW715-Nov-2012

SW815-Nov-2012

SW10115-Nov-2012

SW315-Nov-2012

1070611.1 1070611.2 1070611.4 1070611.5 1070611.6

SW100a15-Nov-2012


g/m3 < 0.00010 < 0.00010 < 0.00010 < 0.00010 < 0.00010Dissolved Silverg/m3 14.7 #1 8.9 #1 16.8 #1 8.5 #1 7.3 #1Dissolved Sodiumg/m3 < 0.0005 < 0.0005 < 0.0005 < 0.0005 < 0.0005Dissolved Ting/m3 < 0.00002 < 0.00002 < 0.00002 < 0.00002 < 0.00002Dissolved Uraniumg/m3 4.0 #1 < 0.0010 6.3 1.50 #1 7.4 #1Dissolved Zinc


g/m3 0.22 0.047 0.065 0.0199 0.064Total Aluminiumg/m3 0.00024 < 0.00021 0.00033 0.00030 0.00053Total Antimonyg/m3 < 0.0011 < 0.0011 0.0047 < 0.0011 0.0014Total Arsenicg/m3 0.034 0.0070 0.038 0.0163 #1 0.028Total Bariumg/m3 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011Total Berylliumg/m3 0.0167 #1 0.0104 0.020 #1 0.0128 0.0104 #1Total Borong/m3 0.028 < 0.000053 0.040 0.0119 #1 0.053Total Cadmiumg/m3 60 #1 7.4 #1 127 #1 7.4 #1 30 #1Total Calciumg/m3 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053Total Chromiumg/m3 0.0119 < 0.00053 0.038 0.0108 0.175Total Copperg/m3 0.038 < 0.021 4.8 < 0.021 0.91Total Irong/m3 0.0127 < 0.00011 0.088 0.195 0.126Total Leadg/m3 0.0079 #1 0.00062 #1 0.0120 #1 0.0021 #1 0.0048 #1Total Lithiumg/m3 15.1 #1 2.5 #1 23 #1 2.4 #1 5.5 #1Total Magnesiumg/m3 0.35 #1 0.0035 0.92 #1 0.00165 0.31Total Manganeseg/m3 < 0.00008 < 0.00008 < 0.00008 < 0.00008 < 0.00008Total Mercuryg/m3 0.00023 < 0.00021 < 0.00021 < 0.00021 0.00047Total Molybdenumg/m3 0.0081 < 0.00053 0.0164 #1 0.00122 0.00142 #1Total Nickelg/m3 1.21 0.56 1.16 0.78 #1 0.55 #1Total Potassiumg/m3 < 0.0011 < 0.0011 < 0.0011 < 0.0011 < 0.0011Total Seleniumg/m3 < 0.00011 < 0.00011 < 0.00011 < 0.00011 < 0.00011Total Silverg/m3 13.9 #1 8.1 #1 16.2 #1 7.5 #1 6.8 #1Total Sodiumg/m3 < 0.00053 < 0.00053 < 0.00053 < 0.00053 < 0.00053Total Ting/m3 < 0.000021 < 0.000021 < 0.000021 < 0.000021 < 0.000021Total Uraniumg/m3 3.8 #1 < 0.0011 7.5 1.38 #1 7.0 #1Total Zinc

Sample Name:

Lab Number:

SW515-Nov-2012

SW A15-Nov-2012

SW C15-Nov-2012

1070611.7 1070611.8 1070611.9 1070611.10

SW B15-Nov-2012

Individual Tests

meq/L 29 < 0.07 - 2.7 -Sum of Anionsmeq/L 30 < 0.05 - 2.6 -Sum of Cations

pH Units 6.9 7.0 - 7.3 -pHg/m3 as CaCO3 114 2.2 - 62 -Total Alkalinity

g/m3 at 25°C 139 2.7 - 75 -BicarbonatemS/m 214 < 0.1 - 25.0 -Electrical Conductivity (EC)

g/m3 32 - - < 3 -Total Suspended Solidsg/m3 < 0.0005 < 0.00010 < 0.00010 < 0.00010 -Dissolved Lanthanumg/m3 < 0.00053 < 0.00011 - < 0.00011 -Total Lanthanumg/m3 9.4 < 0.5 - 8.3 -Chlorideg/m3 < 0.02 < 0.002 - < 0.002 -Nitrite-Ng/m3 < 0.02 < 0.002 - 0.043 -Nitrate-Ng/m3 < 0.02 < 0.002 - 0.043 -Nitrate-N + Nitrite-N

g/m3 as SiO2 22 < 0.10 < 0.10 10.9 -Reactive Silicag/m3 1,270 < 0.5 - 61 -Sulphate


g/m3 as CaCO3 1,360 < 1.0 < 1.0 101 -Total Hardnessg/m3 < 0.015 < 0.003 < 0.003 0.009 -Dissolved Aluminiumg/m3 < 0.0010 < 0.0002 < 0.0002 0.0008 #1 -Dissolved Antimonyg/m3 0.012 < 0.0010 < 0.0010 < 0.0010 -Dissolved Arsenic



Lab Number:

SW515-Nov-2012

SW A15-Nov-2012

SW C15-Nov-2012

1070611.7 1070611.8 1070611.9 1070611.10

SW B15-Nov-2012


g/m3 0.053 < 0.00010 < 0.00010 0.034 #1 -Dissolved Bariumg/m3 < 0.0005 < 0.00010 < 0.00010 < 0.00010 -Dissolved Berylliumg/m3 0.05 < 0.005 < 0.005 0.011 #1 -Dissolved Borong/m3 0.030 #1 < 0.00005 < 0.00005 0.053 -Dissolved Cadmiumg/m3 450 #1 < 0.05 < 0.05 31 #1 -Dissolved Calciumg/m3 < 0.003 < 0.0005 < 0.0005 < 0.0005 -Dissolved Chromiumg/m3 0.003 < 0.0005 < 0.0005 0.068 -Dissolved Copperg/m3 14.8 < 0.02 < 0.02 < 0.02 -Dissolved Irong/m3 < 0.0005 < 0.00010 < 0.00010 0.0075 -Dissolved Leadg/m3 0.049 #1 < 0.0002 < 0.0002 0.0050 -Dissolved Lithiumg/m3 58 #1 < 0.02 < 0.02 5.9 #1 -Dissolved Magnesiumg/m3 6.9 < 0.0005 < 0.0005 0.32 #1 -Dissolved Manganeseg/m3 < 0.00008 < 0.00008 < 0.00008 < 0.00008 -Dissolved Mercuryg/m3 < 0.0010 < 0.0002 < 0.0002 0.0004 -Dissolved Molybdenumg/m3 0.074 < 0.0005 < 0.0005 0.0016 -Dissolved Nickelg/m3 1.8 < 0.05 < 0.05 0.58 #1 -Dissolved Potassiumg/m3 < 0.005 < 0.0010 < 0.0010 < 0.0010 -Dissolved Seleniumg/m3 < 0.0005 < 0.00010 < 0.00010 < 0.00010 -Dissolved Silverg/m3 32 #1 < 0.02 < 0.02 6.6 #1 -Dissolved Sodiumg/m3 < 0.003 < 0.0005 < 0.0005 < 0.0005 -Dissolved Ting/m3 < 0.00010 < 0.00002 < 0.00002 < 0.00002 -Dissolved Uraniumg/m3 17.9 < 0.0010 < 0.0010 7.5 #1 -Dissolved Zinc


g/m3 < 0.016 < 0.0032 - 0.066 -Total Aluminiumg/m3 < 0.0011 < 0.00021 - 0.00056 #1 -Total Antimonyg/m3 0.0174 < 0.0011 - 0.0013 -Total Arsenicg/m3 0.054 < 0.00011 - 0.028 #1 -Total Bariumg/m3 < 0.00053 < 0.00011 - < 0.00011 -Total Berylliumg/m3 0.053 < 0.0053 - 0.0101 #1 -Total Borong/m3 0.029 #1 < 0.000053 - 0.053 -Total Cadmiumg/m3 440 #1 < 0.053 - 30 #1 -Total Calciumg/m3 < 0.0027 < 0.00053 - < 0.00053 -Total Chromiumg/m3 0.0033 < 0.00053 - 0.178 -Total Copperg/m3 18.8 < 0.021 - 0.90 -Total Irong/m3 0.00175 < 0.00011 - 0.125 -Total Leadg/m3 0.046 #1 < 0.00021 - 0.0052 -Total Lithiumg/m3 57 #1 < 0.021 - 5.6 #1 -Total Magnesiumg/m3 7.2 < 0.00053 - 0.31 #1 -Total Manganeseg/m3 < 0.00008 < 0.00008 - < 0.00008 -Total Mercuryg/m3 < 0.0011 < 0.00021 - 0.00050 -Total Molybdenumg/m3 0.074 < 0.00053 - 0.00161 -Total Nickelg/m3 1.85 < 0.053 - 0.53 #1 -Total Potassiumg/m3 < 0.0053 < 0.0011 - < 0.0011 -Total Seleniumg/m3 < 0.00053 < 0.00011 - < 0.00011 -Total Silverg/m3 29 #1 < 0.021 - 6.5 #1 -Total Sodiumg/m3 < 0.0027 < 0.00053 - < 0.00053 -Total Ting/m3 < 0.00011 < 0.000021 - < 0.000021 -Total Uraniumg/m3 18.1 < 0.0011 - 7.2 #1 -Total Zinc


Analyst's CommentsSupplement to test report 1070611 v2 issued on 29-Nov-2012.





4-10Filtration, Unpreserved Sample filtration through 0.45µm membrane filter. -

1-2, 4-8,10

Total Digestion Boiling nitric acid digestion. APHA 3030 E 21st ed. 2005. -

1-2, 4-8,10

Total acid digest for Silver analysis Boiling nitric / hydrochloric acid digestion (5:1 ratio). APHA 3030F (modified) 21st ed. 2005.

-

4-8, 10Total anions for anion/cation balancecheck


4-8, 10Total cations for anion/cation balancecheck


1-2, 4-8,10

pH pH meter. APHA 4500-H+ B 21st ed. 2005. 0.1 pH Units

4-8, 10Total Alkalinity Titration to pH 4.5 (M-alkalinity), autotitrator. APHA 2320 B(Modified for alk <20) 21st ed. 2005.

1.0 g/m3 as CaCO3

4-8, 10Bicarbonate Calculation: from alkalinity and pH, valid where TDS is not >500mg/L and alkalinity is almost entirely due to hydroxides,carbonates or bicarbonates. APHA 4500-CO2 D 21st ed. 2005.

1.0 g/m3 at 25°C

1-2, 4-8,10

Electrical Conductivity (EC) Conductivity meter, 25°C. APHA 2510 B 21st ed. 2005. 0.1 mS/m

1-2, 4-7,10

Total Suspended Solids Filtration using Whatman 934 AH, Advantec GC-50 orequivalent filters (nominal pore size 1.2 - 1.5µm), gravimetricdetermination. APHA 2540 D 21st ed. 2005.

3 g/m3

1-2, 4-10Dissolved Lanthanum Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-2, 4-8,10

Total Lanthanum Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00011 g/m3

4-8, 10Chloride Filtered sample. Ferric thiocyanate colorimetry. DiscreteAnalyser. APHA 4500 Cl- E (modified from continuous flowanalysis) 21st ed. 2005.

0.5 g/m3

4-8, 10Nitrite-N Automated Azo dye colorimetry, Flow injection analyser. APHA4500-NO3- I (Modified) 21st ed. 2005.

0.002 g/m3

4-8, 10Nitrate-N Calculation: (Nitrate-N + Nitrite-N) - NO2N. 0.002 g/m3

4-8, 10Nitrate-N + Nitrite-N Total oxidised nitrogen. Automated cadmium reduction, flowinjection analyser. APHA 4500-NO3- I (Modified) 21st ed. 2005.

0.002 g/m3

4-10Reactive Silica Filtered sample. Heteropoly blue colorimetry. Discrete analyser.APHA 4500-SiO2 F (modified from flow injection analysis) 21st

ed. 2005.

0.10 g/m3 as SiO2

4-8, 10Sulphate Filtered sample. Ion Chromatography. APHA 4110 B 21st ed.2005.

0.5 g/m3


1-2, 4-10Total Hardness Calculation from Calcium and Magnesium. APHA 2340 B 21sted. 2005.

1.0 g/m3 as CaCO3

1-2, 4-10Dissolved Aluminium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.003 g/m3

1-2, 4-10Dissolved Antimony Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0002 g/m3

1-2, 4-10Dissolved Arsenic Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0010 g/m3

1-2, 4-10Dissolved Barium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-2, 4-10Dissolved Beryllium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-2, 4-10Dissolved Boron Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.005 g/m3

1-2, 4-10Dissolved Cadmium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00005 g/m3

1-2, 4-10Dissolved Calcium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.05 g/m3

1-2, 4-10Dissolved Chromium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-2, 4-10Dissolved Copper Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-2, 4-10Dissolved Iron Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.02 g/m3



1-2, 4-10Dissolved Lead Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-2, 4-10Dissolved Lithium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0002 g/m3

1-2, 4-10Dissolved Magnesium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.02 g/m3

1-2, 4-10Dissolved Manganese Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-2, 4-10Dissolved Mercury 0.45µm filtration, bromine oxidation followed by atomicfluorescence. US EPA Method 245.7, Feb 2005.

0.00008 g/m3

1-2, 4-10Dissolved Molybdenum Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0002 g/m3

1-2, 4-10Dissolved Nickel Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-2, 4-10Dissolved Potassium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.05 g/m3

1-2, 4-10Dissolved Selenium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0010 g/m3

1-2, 4-10Dissolved Silver Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00010 g/m3

1-2, 4-10Dissolved Sodium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.02 g/m3

1-2, 4-10Dissolved Tin Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0005 g/m3

1-2, 4-10Dissolved Uranium Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00002 g/m3

1-2, 4-10Dissolved Zinc Filtered sample, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0010 g/m3


1-2, 4-8,10

Total Aluminium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0032 g/m3

1-2, 4-8,10

Total Antimony Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00021 g/m3

1-2, 4-8,10

Total Arsenic Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0011 g/m3

1-2, 4-8,10

Total Barium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00011 g/m3

1-2, 4-8,10

Total Beryllium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00011 g/m3

1-2, 4-8,10

Total Boron Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.0053 g/m3

1-2, 4-8,10

Total Cadmium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.000053 g/m3

1-2, 4-8,10

Total Calcium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.053 g/m3

1-2, 4-8,10

Total Chromium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-2, 4-8,10

Total Copper Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-2, 4-8,10

Total Iron Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.021 g/m3

1-2, 4-8,10

Total Lead Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00011 g/m3

1-2, 4-8,10

Total Lithium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00021 g/m3

1-2, 4-8,10

Total Magnesium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.021 g/m3

1-2, 4-8,10

Total Manganese Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-2, 4-8,10

Total Mercury Bromine Oxidation followed by Atomic Fluorescence. US EPAMethod 245.7, Feb 2005.

0.00008 g/m3

1-2, 4-8,10

Total Molybdenum Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00021 g/m3

1-2, 4-8,10

Total Nickel Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.00053 g/m3

1-2, 4-8,10

Total Potassium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.053 g/m3



1-2, 4-8,10

Total Selenium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0011 g/m3

1-2, 4-8,10

Total Silver Boiling nitric / hydrochloric acid digestion (5:1 ratio), ICP-MS,trace level. APHA 3125 B 21st ed. 2005.

0.00011 g/m3

1-2, 4-8,10

Total Sodium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.021 g/m3

1-2, 4-8,10

Total Tin Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005.

0.00053 g/m3

1-2, 4-8,10

Total Uranium Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.000021 g/m3

1-2, 4-8,10

Total Zinc Nitric acid digestion, ICP-MS, trace level. APHA 3125 B 21st ed.2005 / US EPA 200.8.

0.0011 g/m3





Carole Rodgers-Carroll BA, NZCSClient Services Manager - Environmental Division

Documents

Tui Mine Remedial Works – Water Quality Monitoring (After … · Tui Mine Monitoring Report 2012 – Water Quality Monitoring (After Alkalinity Injection for Rehabilitation of Tui