Original EA Amendment

Accredited for compliance with ISO/IEC 17025 - Testing)

Certificate of Analysis

Accreditation No 626

Bureau Veritas Mineral Processing 4985X3 35 Cormack Road WINGFIELD SA 5013 Australia

Attention: Mark Fisher

Project Name Collected by

22PEAD0003092

Client

Client Ref:

AMP213867

Customer Sample ID

OCP

OCP Post Conditioning N9679-76L-2

Description

N9679-76L-1 08/11/2022 25/11/2022 Site Water

Date Collected Date Started Sample Type Test/Reference

09/11/2022 25/11/2022 Site Water

Unit

Conductivity APHA 21st Ed Electrical Conductivity @ 25°C Total Dissolved Solids PW-03*

µS/cm

15000

15000

Conductivity*

µS/cm

15402

15449

TDS Calculated*

mg/L

9857

9887

Hardness APHA 21st Ed Hardness (calc as CaCO3)

mg/L

12564

13078

Ammonia (as N) Test/Reference Ammonia (as N)* Mercury Test/Reference

Unit

mg/L

200

79

Unit

Mercury*

mg/L mg/L

<0.001 <0.001

<0.001 <0.001

Mercury (Filtered)* WATER ANALYSIS Test/Reference

Unit

PROPERTIES: APHA 4500-H+ A,B

pH at Measured Temp.

4.1

4.2

Measured Temp.

°C

13.1

13.8

PROPERTIES: APHA 21st Ed* Measured Total Suspended Solids* ANIONS mg/L APHA 2320 A,B

mg/L

170

140

Hydroxide as CaCO3 Carbonate as CaCO3 Bicarbonate as CaCO3

mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L

<1 <1 <1 <1

<1 <1 <1 <1

Total Alkalinity (calc as CaCO3) ANIONS mg/L APHA 4110

Bromide as Br Chloride as Cl Fluoride as F Nitrite as NO2

0.8

1

270

290

33

34

<0.1

<0.1

Nitrate as NO3 Sulphate as SO4 Phosphate as PO4

0.3

1

8400 <0.1

7600 <0.1

CATIONS Dissolved mg/L APHA 21st ed

Bureau Veritas 33-35 Cormack Rd Wingfield SA Australia 5013 ABN: 30 008 127 802 Telephone: +61 8 8416 5240 Facsimile: +61 8 8234 2933

First Reported: 5 December 2022 Date Issued: 7 December 2022

Page 1 of 2

Final Report Number : 1016689

Powered by