This section of the website is designed to keep you informed about the progress made on the final remediation of the site. 

Updated December 13, 2021

The Government of Alberta’s Ministry of Environment and Parks (AEP) released information about the criteria for dioxins as it relates to the soil review undertaken by the Alberta Government in the Verte Homesteader neighbourhood 

The Government has set criteria for dioxin levels at 330 parts per trillion (ng/kg). 

Soil testing in the community confirm that  a small percentage of the undeveloped section of Verte Homesteader Community (known as Area “Y”) may be impacted over 330 parts per trillion.

None of the existing recently developed residential community Area “C” contains soil exceeding 330 parts per trillion (ng/kg).  

Although a December 15 deadline was established by AEP, Cherokee has already submitted a Remediation Plan in November and a Risk and Management Plan in early December. Once these plans are approved by the AEP, Cherokee will move quickly with the small amount of remediation required.  Given limitations imposed by winter, it is Cherokee’s hope the site will be ready for final remediation and residential development in 2022.”.

Site Clean Up

With the announcement of the criteria, Cherokee can now return to the community to undertake a site cleanup, including the establishment of a regular grass cutting and weed control program.  More information including dates and details about the clean-up plans will be announced in the coming weeks.

Updated May 19, 2020

Significant work has been completed as Cherokee continues to collaborate with government to satisfy requirements under the Minister’s Order and establishing clean-up plans. The Site Specific Risk Assessment (SSRA) and the Human Health Risk Assessment (HHRA) were submitted to Alberta Environment and Parks (AEP) and to the Chief Scientist. AEP issued a letter on April 7, 2020 stating that these requirements of the Minister’s Order have now been satisfied. Please see the attached letter.

The Site Specific Remediation Criteria (SSRC) have not yet been confirmed. Once the SSRC are agreed upon, the Remediation Plan and the Risk Management Plan can be finalized and submitted to AEP for review. Although COVID-19 has caused some disruption, Cherokee is working to advance the project expeditiously. It is currently hoped that the remediation work can be completed later in the summer of 2020.

MINISTER'S ORDERSSTATUS  
Develop and implement a temporary dust control planCOMPLETE - A dust control plan has been in place since May 2018 with Alberta Health Services. There have been no dust issues at the property. The plan is primarily for times when there is no activity on the site as it is activity that typically generates dust.
Submit Dust Control ProgramCOMPLETE-ONGOING - In May, the dust control plan was submitted to Alberta Environment and Parks and confirmed by the Ministry in July. The dust control program is phased. During periods of limited site activity, there is a regular monthly inspection of the site conditions to assess vegetation quality and identify areas where dust generation may become an issue if not addressed. During periods of higher site activity, there are daily inspections of the work areas to ensure that the activities are not increasing the potential for dust generation. During remedial activities, where soil disturbance will be required, the dust control program will also include active monitoring of air quality and dust suppression.
Submit the plan to determine the edges of the contamination (Delineation Plan*)SUBMITTED BUT NOT CONFIRMED - Delineation plans were submitted for Parcels X, C and Y on June 10, 2019. The field assessment activities were conducted in July and August. Although submitted, the plans have yet to be confirmed as complete, as they were dependent on the dioxin and furan guidelines which Cherokee has worked with Alberta Environment and Parks to establish
Complete Delineation WorkSUBMITTED BUT NOT CONFIRMED - Drilling and samplings were undertaken in July, 2019 on Parcels X, C and Y. Delineation plans were submitted to Environment and Parks on August 9, 2019. Delineation reports containing the test hole logs, location plans and chemical analysis were submitted to Alberta Environment and Parks in August. Supplemental delineation work was done but has yet to be confirmed as complete, as it was dependent on the dioxin and furan guidelines which Cherokee has worked with Alberta Environment and Parks to establish.
Submit Conceptual Site Model (CSM)COMPLETE-ONGOING - - The CSM is a living document that shows where the contaminants are located both horizontally and vertically on the property. The CSM was initially provided on May 15, 2019 and was updated with additional data on September 6, 2019. The requirement to provide the CSM within 180 days has been satisfied. Any further updates will be provided as new data becomes available.
Submit Human Health Risk Assessment (HHRA)COMPLETE - One of the main purposes of the Human Health Risk Assessment (HHRA) was to set the Site Specific Remediation Criteria (SSRC) for dioxins and furans. Alberta Environment and Parks and the Chief Scientist have conducted their review and Alberta Environment and Parks has issued a letter advising this requirement of the Minister’s Order has been satisfied.HHRA Report - Residential Areas
HHRA Report - Parkland Areas

Submit Site Specific Risk Assessment (SSRA) COMPLETE - The Site Specific Risk Assessment (SSRA) covers human and ecological considerations for the site. Alberta Environment and Parks and the Chief Scientist have conducted their review and Alberta Environment and Parks has issued a letter advising this requirement of the Minister’s Order has been satisfied. SSRA Report - Residential Areas
SSRA Report - Parkland Areas
Submit Risk Management & Remediation PlanCOMPLETE - GUIDELINE FOR DIOXINS & FURANS –A draft Remediation Plan for Parcel Y was submitted to AEP in March, 2019 and a revised version was submitted on September 21, 2019. The Remediation Plan and Risk Management Plan were contingent on the establishment of guidelines for dioxins and furans which were announced by AEP on December 10. AEP issued a December 15 deadline for the submission of these 2 reports, however, Cherokee has submitted to AEP in advance both the Remediation Plan in November 2021 and the Risk Management Plan in early December 2021.
Submit Long Term Monitoring PlanCOMPLETE - Long Term Monitoring Plans for the parts of the site that will remain under risk management (the berm and Parcel X) were dependent on dioxin and furan guidelines which Alberta Environment and Parks which were established on December 10, 2021. AEP issued a December 15 deadline for these submissions. Cherokee submitted both the Remediation Plan to AEP in November 2021 and the Risk Management Plan in early December 2021.
Complete Remediation workINCOMPLETE - Cherokee had hoped to have completed full remediation by the end of November, 2019, however this work was dependent on the confirmation of guidelines for furans and dioxins which were announced December 10, 2021. Complete remediation work will be followed by the acceptance of both the Remediation Plan which was submitted to AEP in November 2021 and the Risk Management Plan submitted in early December 2021.
ENVIRONMENTAL PROTECTION ORDER 
Submit Delineation Plans for Verte HomesteaderSUBMITTED BUT NOT CONFIRMED - The delineation plan for Verte Homesteader (Parcel C) was submitted to Alberta Environment and Parks on June 10, 2019. Confirmation of this plan depends on the Site Specific Remediation Criteria (SSRC) for dioxins and furans, which have not yet been determined. Cherokee continues to work with Alberta Environment and Parks to establish these guidelines as soon as possible.
Complete Delineation for Verte HomesteaderCOMPLETE AWAITING GUIDELINES FOR DIOXINS & FURANS - The delineation work for Verte Homesteader (Parcel C) was completed in July and submitted to Alberta Environment and Parks in August, 2019. The work has not been confirmed as complete as it is dependent on the Site Specific Remediation Criteria (SSRC) for dioxins and furans, which have not yet been determined. Cherokee continues to work with Alberta Environment and Parks to establish these guidelines as soon as possible.
Submit Remediation Plans for Verte HomesteaderSUBMITTED BUT NOT CONFIRMED - The remediation plan for Verte Homesteader was submitted on April 18, 2019, and remediation of a small area in the northeast corner of the parkette was carried out in August 2019. Confirmation of the plan and completion of the remediation depends on the Site Specific Remediation Criteria (SSRC) for dioxins and furans, which have not been determined. Cherokee continues to work with Alberta Environment and Parks to establish these guidelines as soon as possible.
Complete Remediation for Verte HomesteaderSUBMITTED BUT NOT CONFIRMED - A small area of soil in the northeast corner of the parkette was excavated and backfilled. Soil samples were submitted and analysed at a laboratory. The remediation work has not been confirmed as complete as it is dependent on the Site Specific Remediation Criteria (SSRC) for dioxins and furans, which have not been determined. Cherokee continues to work with Alberta Environment and Parks to establish these guidelines as soon as possible.

* Delineation – find the edges of contamination which exceed Tier 1 or 2 guidelines.

Preliminary Conceptual Site Map

UPDATED DECEMBER 13, 2021