Obed Mountain Mine Chemistry Data 2015
The file below includes all samples collected and analyzed in 2015. This includes:
- All certificates of Analysis and reports from all laboratories
- Surface water quality data
- Biota data
- Sediment data
- Soils and solids quality data
- Fish tissue data
- Vegetation tissue data
2015 Data Summary – January 2016
Concurrently with ongoing water sampling and testing programs underway on the Apetowun and Plante Creeks, and the Athabasca River, CVRI is carrying out a number of other evaluation, management and remediation activities as described in its approved plans.
Surface Water Monitoring
CVRI is monitoring the water conditions of discharge points, creeks and rivers in proximity to the Obed Mountain Mine. Details on the process are outlined in the Immediate and Short-Term Sampling and Monitoring Plan. These tests check for conventional variables (including total suspended solids and turbidity), major ions, nutrients, biological oxygen demand, total and dissolved metals, hydrocarbons, and PAHs.
The reports are specific to discharge points, creeks and rivers in direct proximity to the mine site. The tables are updated weekly and cumulative updates are posted to the website on a monthly basis.
Data Sonde Readings
Among the tools that CVRI uses to monitor water conditions are a number of data sondes located in the Apetowun and Plante creeks, and the Athabasca River. A data sonde is an instrument that monitors water quality. It is installed to measure conductivity, dissolved oxygen, pH, temperature and turbidity (a measure of the clarity of the water). The network of CVRI data sondes provides continuous information by recording statistics every 15 minutes to ensure changes in water quality are monitored and tracked. All of the recorded metrics tend to fluctuate on a daily basis, but naturally occurring factors, such as runoffs or mudslides, can cause wider variations similar to what was experienced during the release of process water from the Obed Mountain Mine. Details on data sonde monitoring are included in the sampling and monitoring plans.
CVRI is continually managing and monitoring wastewater that is being collected around the Obed Mountain Mine. This is water that is naturally deposited around the mine site. Wastewater is collected in approved settling ponds before being discharged back into the environment. This program is required under existing Environmental Protection and Enhancement Act approval and reflected in the Waste Water Management Plan.
The reports are specific to locations in direct proximity to the mine site. The tables are updated weekly and cumulative updates are posted to the website on a monthly basis.
CVRI developed a Fish Monitoring and Sampling Plan to assess the condition of a number of fish species that are present in the Apetowun and Plante creeks, and in the Athabasca River. Ongoing work will consist of spawning surveys and community sampling to determine any impacts the release might have had on egg deposits, spawning habitat or stress levels. The assessments will also evaluate any effects on the food chain. The following documents provide an update on the fish inventory program in the Athabasca River and a map of the sampling areas.
PAH Fish Tissue Data – January 2015
· Data Summary 1
· Data Summary 2
Turbidity Monitoring and Fish Capture and Release Operations – November 2014
Fall Fish Inventory Data 2014
Fall Fish Summary 2014
Summer Fish Summary 2014
Fish Inventory Sampling Sites 2014
Fish Population Monitoring 2011
Benthic Survey 2011
Benthic Biomonitoring Program 2011
Fish Population Monitoring 2010
Environmental Impact Statement 2009
Fish Population Monitoring 2008
Benthic Survey 2007
Fish Population Monitoring 2007
Fish Population Monitoring 2005
Fish Population Monitoring 2003
Assessment of Fisheries Resources 2002
Assessment of Fisheries Resources 2001
The wildlife monitoring program aims to identify initial wildlife response after the release, to test the impact predictions, and to evaluate the effectiveness of long-term mitigation measures. Five focal species have been selected for the long-term monitoring to evaluate potential impacts and response. They are: American beaver, moose, small carnivores (short-tailed weasel), migrant shorebirds and ground dwelling songbirds (Emberizids).
Vegetation and Wetland Resources
The vegetation and wetlands sampling and monitoring plan was designed to address the success of both natural and assisted vegetation recovery within the zones impacted by the release. Permanent vegetation monitoring and reference plots were set up along the Apetowun Creek and collection of monitoring data within these plots commenced in the summer of 2014.
Soil and Sediment Data
Soil and sediment testing is conducted around the mine site to analyze the physical, chemical and toxicological characteristics. These surveys are carried out concurrently with water quality surveys and biological monitoring to determine any relationship between environmental quality and the health of resident biota. The following tables summarize the monthly results of the soil and sediment testing programs.
The Solids Recovery Plan developed by CVRI has two key goals: to protect Plante Creek and the Athabasca River by reducing sediment transport in Apetowun Creek, and to repair the upper reaches of Apetowun Creek to pre-disturbance conditions. The following material records the solids recovered from the creeks, river and surround areas. This was done using a variety of methods including excavators, vacuum trucks and sediment traps. Other activity is underway to remove or stabilize various locations such as erosion points, surface scouring from the released water and remaining sediment areas with uninterrupted paths to the creek.
Sediment Trap Bathymetry – May 2015
2014 Sediment Trap Assessment – March 2015
· Water Quality Questions – April 22, 2015
Sediment Trap Maintenance – October 2014
DX Culvert Solids Removal Project – August 2014
Fish Barrier Removal, Channel Restoration and Bank Armouring Projects on Apetowun Creek – August 2014
Solids Recovery Volumes – August 6, 2014