Appendix 5. Geotechnical Engineering Report [As Published] · 132007.2399

 

 

 

 

 

 

 

 

 

 

 

Page Number :20f5

Client : GOLDER ASSOCIATES L
Work Order : EBO711624 aL’ Sruironmenke
Comments

This report for the ALSE reference EB0711624 supersedes any previous reports with this reference. Results apply to the samples as submitted. All pages of this report have been checked and
approved for release.

This report contains the following information:

e Analytical Results for Samples Submitted
e@ Surrogate Recovery Data

The analytical procedures used by ALS Environmental have been developed from established internationally-recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In
house developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for
results reported herein. Reference methods from which ALSE methods are based are provided in parenthesis.

When moisture determination has been performed, results are reported on a dry weight basis. When a reported ‘less than’ result is higher than the LOR, this may be due to primary sample
extracts/digestion dilution and/or insuffient sample amount for analysis. Surrogate Recovery Limits are static and based on USEPA SW846 or ALS-QWI/EN38 (in the absence of specified USEPA
limits). Where LOR of reported resutt differ from standard LOR, this may be due to high moisture, reduced sample amount or matrix interference. When date(s) and/or time(s) are shown bracketed,
these have been assumed by the laboratory for process purposes. Abbreviations: CAS number = Chemical Abstract Services number, LOR = Limit of Reporting. * Indicates failed Surrogate
Recoveries. :

Specific comments for Work Order EB0711624

Liming rate is calculated and reported on a dry weight basis assuming use of fine agricultural lime (CaCO3) and using a safety factor of 1.5 to allow for non-homogeneous mixing and poor reactivity
of lime. For conversion of Liming Rate from ‘kg/t dry weight’ to ‘kg/m in-situ soil’, multiply ‘reported results’ x ‘wet bulk density of soil in t’m3’.
Retained Acidity not required because pH KC! greater than or equal to 4.5