appendix e june 2013 lake sediment testing

City of Nanaimo Removal of Middle and Lower Chase River Dams Tender No. 1445

APPENDIX E

JUNE 2013 LAKE SEDIMENT TESTING

Colliery Dam Park

Sediment Sampling Locations

Lewkowich Engineering Ltd.

May 2013

Colliery Dam Park, Lower Lake Sediment Cores


May 2013

Colliery Dam Park, Middle Lake Sediment Cores


May 2013

[This report shall not be reproduced except in full without the written authority of the Laboratory.]

05-APR-13

Lab Work Order #: L1286628

Date Received:KLOHN CRIPPEN BERGER LTD

301 - 2627 Ellwood Drive SWEDMONTON AB T6X 0P7

ATTN: PAUL WAGNERFINAL 15-APR-13 16:19 (MT)Report Date:

Version:

Certificate of Analysis

ALS CANADA LTD Part of the ALS Group A Campbell Brothers Limited Company

____________________________________________

ADDRESS: 8081 Lougheed Hwy, Suite 100, Burnaby, BC V5A 1W9 Canada | Phone: +1 604 253 4188 | Fax: +1 604 253 6700

Client Phone: --

Comments:

A05130A01-12-02Job Reference: NOT SUBMITTEDProject P.O. #:

10-294236C of C Numbers: Legal Site Desc:

ALS ENVIRONMENTAL ANALYTICAL REPORT

L1286628 CONTD....2PAGE

Result D.L. Units Extracted AnalyzedSample Details/Parameters

ofA05130A01-12-02

Qualifier* Batch

* Refer to Referenced Information for Qualifiers (if any) and Methodology.

Version: FINAL 5

L1286628-1

L1286628-2

MIDDLE LAKE SAMPLE#4

LOWER LAKE SAMPLE#3

CLIENT on 28-MAR-13

CLIENT on 28-MAR-13

Sampled By:

Sampled By:

lake sediment

lake sediment

Metals in Soil (CSR)

Miscellaneous Parameters

Detailed Salinity

Metals in Soil (CSR)

Mercury (Hg)

Antimony (Sb)Arsenic (As)Barium (Ba)Beryllium (Be)Cadmium (Cd)Chromium (Cr)Cobalt (Co)Copper (Cu)Lead (Pb)Molybdenum (Mo)Nickel (Ni)Selenium (Se)Silver (Ag)Thallium (Tl)Tin (Sn)Uranium (U)Vanadium (V)Zinc (Zn)

pH (1:2 soil:water)

MUST PSA % > 75umMoisture

Chloride (Cl)

Calcium (Ca)Potassium (K)Magnesium (Mg)Sodium (Na)SARSulfur (as SO4)

% SaturationConductivity Sat. Paste

Mercury (Hg)

Antimony (Sb)Arsenic (As)Barium (Ba)Beryllium (Be)Cadmium (Cd)

mg/kg

mg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kg

pH

%%

mg/L

mg/Lmg/Lmg/Lmg/LSARmg/L

%dS m-1

mg/kg

mg/kgmg/kgmg/kgmg/kgmg/kg

09-APR-13

09-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-13

12-APR-13

12-APR-13

12-APR-1312-APR-1312-APR-1312-APR-1312-APR-1312-APR-13

11-APR-1311-APR-13

09-APR-13

09-APR-1309-APR-1309-APR-1309-APR-1309-APR-13

10-APR-13

09-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-13

09-APR-13

12-APR-1315-APR-13

12-APR-13


12-APR-1312-APR-13

10-APR-13

09-APR-1309-APR-1309-APR-1309-APR-1309-APR-13

0.126

0.224.701880.540.10556.417.054.85.87

<0.5032.80.390.170.078<2.00.54212051.8

5.94

30.990.0

47.8

22.72.95.720.40.9910.8

75.50.28

<0.050

0.192.9268.60.460.065

Mercury in Soil by CVAFS

Metals in Soil by CRC ICPMS

pH in Soil (1:2 Soil:Water Extraction)

Chloride (Cl) (Saturated Paste)

SAR, Cations and SO4 in saturated soil

pH and EC (Saturated Paste)



0.050

0.100.0500.500.200.0500.500.100.500.500.500.500.200.100.0502.0

0.0500.201.0

0.10

0.100.25

2.0

2.01.02.04.00.105.0

1.00.10

0.050

0.100.0500.500.200.050

Matrix:

Matrix:

R2575172

R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615

R2574327

R2577769R2578565

R2577476

R2577552R2577552R2577552R2577552R2577552R2577552

R2577229R2577229

R2575172

R2574615R2574615R2574615R2574615R2574615

ALS ENVIRONMENTAL ANALYTICAL REPORT

L1286628 CONTD....3PAGE

Result D.L. Units Extracted AnalyzedSample Details/Parameters

ofA05130A01-12-02

Qualifier* Batch

* Refer to Referenced Information for Qualifiers (if any) and Methodology.

Version: FINAL 5

L1286628-2 LOWER LAKE SAMPLE#3CLIENT on 28-MAR-13Sampled By:

lake sediment

Miscellaneous Parameters

Detailed Salinity

Chromium (Cr)Cobalt (Co)Copper (Cu)Lead (Pb)Molybdenum (Mo)Nickel (Ni)Selenium (Se)Silver (Ag)Thallium (Tl)Tin (Sn)Uranium (U)Vanadium (V)Zinc (Zn)

pH (1:2 soil:water)

MUST PSA % > 75umMoisture

Chloride (Cl)

Calcium (Ca)Potassium (K)Magnesium (Mg)Sodium (Na)SARSulfur (as SO4)

% SaturationConductivity Sat. Paste

mg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kgmg/kg

pH

%%

mg/L

mg/Lmg/Lmg/Lmg/LSARmg/L

%dS m-1

09-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-13

12-APR-13

12-APR-13


11-APR-1311-APR-13

09-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-1309-APR-13

09-APR-13

12-APR-1315-APR-13

12-APR-13


12-APR-1312-APR-13

43.918.741.34.951.0827.30.26

<0.100.066<2.00.29413139.5

6.18

21.081.5

57.2

13.41.34.137.72.3144.2

97.10.30






0.500.100.500.500.500.500.200.100.0502.0

0.0500.201.0

0.10

0.100.25

2.0

2.01.02.04.00.105.0

1.00.10

Matrix:

R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615R2574615

R2574327

R2577769R2578565

R2577476

R2577552R2577552R2577552R2577552R2577552R2577552

R2577229R2577229

ALK-TOT-SAR-SK

CL-SAR-SK

HG-200.2-CVAF-VA

MET-200.2-CCMS-VA

MOISTURE-VA

PH-1:2-VA

PSA-MUST-SK

SALINITY-INTCHECK-SK

SAR-CALC-SO4-SK

SAT/PH/EC-SK

SO4-SAR-SK

Reference Information

Alkalinity, Total (Saturated Paste)




Moisture content


% Particles > 75um (Coarse/Fine)



Sulfate (SO4) in saturated soil

L1286628 CONTD....

4PAGE of

A05130A01-12-02

Alkalinity is determined by a titration of an aliquot of saturated soil extract with standardized acid solution to a pH of 4.5. Total alkalinity (as CaCO3) is reported.

ReferenceGreenberg, Arnold E., Cleseri, Lenore S., Eaton, Andrew D., Standard Methods For The Examination of Water and Wastewater, 18th Edition, 1992, Method 2320B.

Chloride in a saturated soil extract is determined colorimetrically by auto-analyzer.

This analysis is carried out using procedures from CSR Analytical Method: "Strong Acid Leachable Metals (SALM) in Soil", BC Ministry of Environment, 26 June 2009, and procedures adapted from EPA Method 200.2. The sample is manually homogenized, dried at 60 degrees Celsius, sieved through a 2 mm (10 mesh) sieve (this sieve step is omitted for international soil samples), and a representative subsample of the dry material is weighed. The sample is then digested at 95 degrees Celsius for 2 hours by block digester using concentrated nitric and hydrochloric acids. Instrumental analysis is by atomic fluorescence spectrophotometry (EPA Method 245.7).

Method Limitation: This method is not a total digestion technique. It is a very strong acid digestion that is intended to dissolve those metals that may be environmentally available. By design, elements bound in silicate structures are not normally dissolved by this procedure as they are not usually mobile in the environment.

This analysis is carried out using procedures from CSR Analytical Method: "Strong Acid Leachable Metals (SALM) in Soil", BC Ministry of Environment, 26 June 2009, and procedures adapted from EPA Method 200.2. The sample is manually homogenized, dried at 60 degrees Celsius, sieved through a 2 mm (10 mesh) sieve (this sieve step is omitted for international soil samples), and a representative subsample of the dry material is weighed. The sample is then digested at 95 degrees Celsius for 2 hours by block digester using concentrated nitric and hydrochloric acids. Instrumental analysis of the digested extract is by collision cell inductively coupled plasma - mass spectrometry (modifed from EPA Method 6020A).

Method Limitation: This method is not a total digestion technique. It is a very strong acid digestion that is intended to dissolve those metals that may be environmentally available. By design, elements bound in silicate structures are not normally dissolved by this procedure as they are not usually mobile in the environment.

This analysis is carried out gravimetrically by drying the sample at 105 C for a minimum of six hours.

This analysis is carried out in accordance with procedures described in the pH, Electrometric in Soil and Sediment method - Section B Physical/Inorganic and Misc. Constituents, BC Environmental Laboratory Manual 2007. The procedure involves mixing the dried (at <60°C) and sieved (No. 10 / 2mm) sample with deionized/distilled water at a 1:2 ratio of sediment to water. The pH of the solution is then measured using a standard pH probe.

An air-dried sample is reduced to < 2 mm size and mixed with a dispersing agent (Calgon solution). The sample is washed through a 200 mesh (75 µm) sieve. The retained mass of sample is used to determine % sand fraction.

Reference: ASTM D422-63

Ca, Mg, Na, K and SO4 in a saturated soil extract are determined by ICP-OES.

pH of a saturated soil paste is measured using a pH meter. After equilibration, an extract is obtained by vacuum filtration with conductivity of the extract measured by a conductivity meter.

ALS Test Code Test Description

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

Soil

APHA 2320 B-Auto-Pot. Titration

CSSS(1993) 18.2.2/APHA 4500-CL E

EPA 200.2/245.7

EPA 200.2/6020A

ASTM D2974-00 Method A

BC WLAP METHOD: PH, ELECTROMETRIC, SOIL

ASTM D422-63-SIEVE

CSSS 18.4-Calculation

APHA 3120B

CSSS 18.2.2/CSSC 3.14/CSSS 18.3.1

APHA 3120 B-ICP-OES

Method Reference**

** ALS test methods may incorporate modifications from specified reference methods to improve performance.

Matrix

The last two letters of the above test code(s) indicate the laboratory that performed analytical analysis for that test. Refer to the list below:

Laboratory Definition Code Laboratory Location

Test Method References:

Version: FINAL 5

Reference Information

L1286628 CONTD....

5PAGE of

A05130A01-12-02

ALS Test Code Test Description Method Reference** Matrix

SK

VA

ALS ENVIRONMENTAL - SASKATOON, SASKATCHEWAN, CANADA

ALS ENVIRONMENTAL - VANCOUVER, BRITISH COLUMBIA, CANADA

Test Method References:

Chain of Custody Numbers:

10-294236

GLOSSARY OF REPORT TERMSSurrogates are compounds that are similar in behaviour to target analyte(s), but that do not normally occur in environmental samples. For applicable tests, surrogates are added to samples prior to analysis as a check on recovery. In reports that display the D.L. column, laboratory objectives for surrogates are listed there.mg/kg - milligrams per kilogram based on dry weight of samplemg/kg wwt - milligrams per kilogram based on wet weight of samplemg/kg lwt - milligrams per kilogram based on lipid-adjusted weight mg/L - unit of concentration based on volume, parts per million.< - Less than.D.L. - The reporting limit.N/A - Result not available. Refer to qualifier code and definition for explanation.

Test results reported relate only to the samples as received by the laboratory.UNLESS OTHERWISE STATED, ALL SAMPLES WERE RECEIVED IN ACCEPTABLE CONDITION.Analytical results in unsigned test reports with the DRAFT watermark are subject to change, pending final QC review.

Version: FINAL 5

appendix e june 2013 lake sediment testing

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