DOCSLIB.ORG

ENG 018-2020, 2020 Freshet Update

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
ENG 018-2020, 2020 Freshet Update COUNCIL REPORT Executive Committee Report No. ENG 018-2020 Date: April 29, 2020 File No: 5225-04 To: Mayor and Council From: Stella Chiu, Senior Engineer, Drainage and Wastewater Subject: 2020 Freshet Update RECOMMENDATION THAT the report by the Senior Engineer, Drainage and Wastewater, regarding a 2020 Freshet Update, and PowerPoint Presentation, be received for information. REPORT CONCURRENCE General Manager City Manager The General Manager concurs with the The City Manager concurs with the recommendation of this report. recommendation of this report. SUMMARY OF THE ISSUE Freshet, which typically occurs in May to August, is an annual event caused by heavy rainfall or snowmelt in the mountains. The Matsqui Dyke and Vedder Dyke protect the City from the Fraser River; with the exception of Glen Valley, which is the only low lying area within the city that is not protected by a dyke. In 2007, both the Matsqui and Vedder Dykes were raised to meet the level of the 1894 Flood of Record (1:500 year event), although climate change and sea level rise was not a factor considered at that time. Staff review the information provided by the Provincial River Forecast Centre to ensure we continue to maintain our level of service, and provide appropriate response should an emergency situation arise. This report provides a summary of the information and next steps. BACKGROUND Freshet, which typically occurs in May to August, is an annual event caused by heavy rainfall or snowmelt in the mountains. It causes river levels to rise, and could increase risk of localized flooding to low lying areas not protected by a dyke. A significant portion of the city is protected by the three dykes, namely the Matsqui Dyke, Sumas Dyke and the Vedder Dyke. Specifically, the Matsqui Dyke and Vedder Dyke protect the city from the Fraser River; with the exception of Glen Valley, which is the only low lying area within the city that is not protected by a dyke. In 2007, both the Matsqui and Vedder Dykes were Report No. ENG 018-2020 Page 2 of 4 raised to meet the level of the 1894 Flood of Record (1:500 year event), although climate change and sea level rise was not a factor considered at that time. The Provincial River Forecast Centre analyses snow pack, assesses seasonal water supply and flood risk, and predicts flows in British Columbia’s rivers and streams. It produces a range of bulletins, maps and warnings to inform emergency managers and the public about current and upcoming streamflow conditions, including the monthly Snow Conditions and Water Supply Bulletin. Staff review the information provided by the Provincial River Forecast Centre to ensure we continue to maintain our level of service, and provide appropriate response should an emergency situation arise. DISCUSSION Typically, the following parameters measured from two hydrometric stations (owned by Water Survey Canada) are used for Fraser River freshet forecasting and monitoring: - Fraser River at Hope gauge (“Hope Gauge”) (08MF005) – Flow (m3/s) - Fraser River at Mission gauge (“Mission Gauge”) (08MH024) – Water Level (m) According to the April Snow Conditions and Water Supply Bulletin (Attachment A), snow pack in the overall Fraser River basin is approximately 116% of normal. The likely peak flow forecast for the Fraser River at Hope is 8,000 (1:2 year event) to 11,500 m3/s (1:10 to 15 year event), though higher flows are possible with extreme weather. Seasonal weather forecasts indicate an increased likelihood of warmer than normal April to June temperatures for western BC, and cooler than normal temperatures for eastern BC. Midrange forecasts over the next month are favoring cooler than normal to near normal temperatures. Longer range temperature forecasts shift towards a high likelihood of above normal temperatures through BC over the May to July period. Currently, the higher end of the provincial flow projection of 11,500 m3/s is comparable to the event experienced in 2012. In 2012, a peak flow of 11,700 m3/s was recorded at the Hope gauge, and a peak water level of 6.375m was recorded at Mission Gauge on June 23, 2012. This caused localized flooding on a small portion of the River Road in Glen Valley, as well as Glen Valley Regional Park during the 2012 freshet. In preparation of the 2020 freshet, staff have surveyed current erosion arcs and their extents. In addition, we are advising residents to avoid activities close to the dyke to prevent seepage/boils, such as: - the removal of trees or stumps; - deep cultivation of fields; and - digging holes with machines. Throughout the freshet season, staff will continue to monitor the situation, and follow inspection protocol for dykes, i.e. increase inspection frequency at 4m level measured at the Mission Gauge. In addition, any anomalies, such as trees toppling, erosion arcs, and seepage/boils, developed during this time that would increase risks to our dykes will be monitored. Report No. ENG 018-2020 Page 3 of 4 Staff are participating in the weekly Province’s freshet coordination call with Provincial Emergency Management BC (EMBC), and will review the next Provincial Snow Conditions and Water Supply Bulletin due to be released on May 8, 2020 and provide updates to Council. FINANCIAL PLAN IMPLICATION There is no impact to the financial plan at this time. Komal Basatia Acting GM, Finance and Corporate Services Signed 4/28/2020 2:25 PM IMPACTS ON COUNCIL POLICIES, STRATEGIC PLAN AND/OR COUNCIL DIRECTION The associated monitoring and inspection to prepare for the 2020 freshet season supports the four cornerstones of Council’s Strategic Plan by: Vibrant economy: provide early warning to reduce impacts of flooding to the low lying areas; Complete Community: upholding public safety by ensuring potentially critical conditions to the dykes are identified early on; Fiscal Discipline: understanding the risks of the season and reducing negative impacts to the City’s infrastructure; and Organizational Alignment: upholding public trust by providing a high quality of life for residents protected by the dykes. SUBSTANTIATION OF RECOMMENDATION Freshet, which typically occurs in May to August, is an annual event caused by heavy rainfall or snowmelt in the mountains. It causes river level to rise, and could increase risk of localized flooding to low lying areas not protected by a dyke. According to the April Snow Conditions and Water Supply Bulletin, snow pack in the overall Fraser River basin is approximately 116% of normal. The likely peak flow forecast for the Fraser River at Hope is 8,000 (1:2 year event) to 11,500 m3/s (1:10 to 15 year event), though higher flows are possible with extreme weather. Staff will continue to monitor the situation, and follow inspection protocol for dykes. In addition, any anomalies, such as trees toppling, erosion arcs, and seepage/boils, developed during this time that would increase risks to our dykes will be monitored. It is recommended that the report regarding 2020 Freshet Update, be received for information. Stella Chiu Senior Engineer, Drainage and Wastewater Signed 4/28/2020 11:39 AM Report No. ENG 018-2020 Page 4 of 4 Rob Isaac GM, Engineering & Regional Utiities Signed 4/29/2020 8:45 AM ATTACHMENTS: Snow Survey and Water Supply Bulletin - April 1, 2020 Snow Survey and Water Supply Bulletin – April 1st, 2020 Executive Summary Despite cooler than normal temperatures, dry weather contributed to modest snow pack accumulation over the month of March. Most regions experienced small changes in snow basin index values in April compared with last month. The provincial average of snow measurements is 112% of normal. Seasonal flood risk is elevated in many regions, including the Upper Fraser West, Upper Fraser East, North Thompson, South Thompson, West Kootenay, Boundary, Cariboo Mountains, Central Coast and Skagit. The snow basin index for the Fraser River is 116%, with high snow pack levels in its major tributaries. The likely peak flow forecast for the Fraser River at Hope this freshet is 8,000-11,500 m3/s, though higher flows are possible with extreme weather. Typically, the provincial snow pack reaches its maximum level in mid-April. Significant changes to the current snow pack are not expected. However, continued cool weather can lead to a delay in the snowmelt season and lead to increased seasonal flood risks. Snow pack is one element of seasonal flood risk in BC and alone does not predict whether flooding will occur. Spring weather is a critical factor determining the rate that snow melts, and extreme rainfall can also cause spring flooding. Spring freshet poses a seasonal risk across the BC Interior, irrespective of snow pack levels. Overview The April 1st snow survey is now complete. Data from 117 manual snow courses and 82 automated snow weather stations around the province (collected by the Ministry of Environment Snow Survey Program, BC Hydro and partners), and climate data from Environment and Climate Change Canada and the provincial Climate Related Monitoring Program have been used to form the basis of the following report1. There were additional challenges accessing manual snow courses this year due to the COVID-19 situation, and 28 (19%) scheduled snow courses were not sampled, primarily within the South Coast and Bridge region of the Middle Fraser. This reduces the accuracy of the snow basin indices for certain regions; however, this is not expected to materially affect overall results. Weather March weather was characterized by generally stable patterns, interspersed with weaker periods of instability. Temperatures were below normal across the province, with monthly temperature anomalies typically in the -1˚C to -3˚C range. 1. Every effort is made to ensure that data reported on these pages are accurate.
Load more

Recommended publications
  • A Preliminary Assessment of the Native Fish Stocks of Jasper National Park
    A Preliminary Assessment of the Native Fish Stocks of Jasper National Park David W. Mayhood Part 3 of a Fish Management Plan for Jasper National Park Freshwater Research Limited A Preliminary Assessment of the Native Fish Stocks of Jasper National Park David W. Mayhood FWR Freshwater Research Limited Calgary, Alberta Prepared for Canadian Parks Service Jasper National Park Jasper, Alberta Part 3 of a Fish Management Plan for Jasper National Park July 1992 Cover & Title Page. Alexander Bajkov’s drawings of bull trout from Jacques Lake, Jasper National Park (Bajkov 1927:334-335). Top: Bajkov’s Figure 2, captioned “Head of specimen of Salvelinus alpinus malma, [female], 500 mm. in length from Jaques [sic] Lake.” Bottom: Bajkov’s Figure 3, captioned “Head of specimen of Salvelinus alpinus malma, [male], 590 mm. in length, from Jaques [sic] Lake.” Although only sketches, Bajkov’s figures well illustrate the most characteristic features of this most characteristic Jasper native fish. These are: the terminal mouth cleft bisecting the anterior profile at its midpoint, the elongated head with tapered snout, flat skull, long lower jaw, and eyes placed high on the head (Cavender 1980:300-302; compare with Cavender’s Figure 3). The head structure of bull trout is well suited to an ambush-type predatory style, in which the charr rests on the bottom and watches for prey to pass over. ABSTRACT I conducted an extensive survey of published and unpublished documents to identify the native fish stocks of Jasper National Park, describe their original condition, determine if there is anything unusual or especially significant about them, assess their present condition, outline what is known of their biology and life history, and outline what measures should be taken to manage and protect them.
    [Show full text]
  • DISCOVER West from the Rockies in a Crowded Parade Until They Fall Into the Pacific
    SPECIALLY PREPARED PROGRAM FOR THE CREDIT RIVER PROBUS CLUB British Columbia is a land of immense natural beauty that boasts dozens of spectacular places to explore. It has ten mountain ranges that push DISCOVER west from the Rockies in a crowded parade until they fall into the Pacific. Higher up, mountain passes link whole ecosystems, and water sheds. It’s a wild place where Mother Nature creates the boundaries. Not man. And while she demands respect, her handiwork offers massive rewards for those who come to explore its beauty. This is Canada at its best. BCJUNE 06 – 22, 2019 (17 DAYS) 1-888-923-9183 / www.tourdesign.ca ITINERARY DAY 1 / JUN 06 / DEPART TORONTO – KELOWNA (D) We meet at Pearson International airport for our Air Canada flight to Vancouver. We recommend that since we have ample time in Vancouver that you have a hot lunch at the airport. We will have gained three hours with the time difference between Ontario and British Columbia. We then board our short flight onward to Kelowna. Tentative flight schedule: Air Canada AC 103 / Toronto – Vancouver / depart 8:00am / arrive 9:49am AC8412 / Vancouver – Kelowna / depart 11:05am / arrive 12:00 noon Kelowna lies in the heart of British Columbia’s Okanagan Valley, the largest city on Okanagan Lake, surrounded by provincial parks, pine forest, vineyards, orchards and mountains. Its downtown area incorporates waterfront City Park and a lakeside cultural district. Our coach and guide will start our afternoon of touring as we visit the campus of UBC. UBC is one of North America’s largest public research and teaching institutions, and one of only two Canadian institutions consistently ranked among the world’s 40 best universities.
    [Show full text]
  • Appendices- Updated May 24, 2016
    Appendices- Updated May 24, 2016 Appendices Below is a list of facilities that are subject to the requirements of this Integrated Appendix 1 – List Vegetation Management Plan. This list may change as sites are developed or of BC Hydro decommissioned, or as BC Hydro agrees to manage additional sites for itself or others over the five-year term of the plan. For an up-to-date list, check this online Facilities link: https://www.bchydro.com/content/dam/BCHydro/customer- portal/documents/corporate/safety/secured-facilities-list- 2013.pdfhttp://www.bchydro.com/safety/vegetation_and_powerlines/substation_ weed_control.html. BC Hydro Facilities List for IVMP Vancouver Island/Sunshine Coast Electrical Location Facilities – Substations, Electrode, Regulator and Terminal Stations Buckley Bay Substation Courtney area Burnett Road Terminal Station Victoria Campbell River Substation Campbell River Cape Cockburn Cable Terminal Station Nelson Island Colwood Substation Colwood Comox Substation Comox Dunsmuir 138 kV Substation Qualicum Bay Dunsmuir 500 kV Substation Qualicum Bay Esquimalt Substation Esquimalt Forest View Substation Powell River Galiano Island HVDC Cable Terminal Galiano Island Galiano Substation Galiano Island George Tripp Substation Victoria Gibsons Substation Gibsons Gold River Substation Gold River Goward Substation Saanich Great Central Lake Substation Great Central Lake Grief Point Substation Powell River Harewood Substation Nanaimo Harewood West Substation Nanaimo Horsey Substation Victoria BC Hydro Facilities Integrated Vegetation
    [Show full text]
  • Snow Survey and Water Supply Bulletin – February 1 , 2018
    Snow Survey and Water Supply Bulletin – February 1st, 2018 The February 1st snow survey is now complete. Data from 86 snow courses and 69 automated snow weather stations around the province, collected by the Ministry of Environment Snow Survey Program and partners, and climate data from Environment and Climate Change Canada have been used to form the basis of the following report1. Weather January weather patterns affecting British Columbia were mixed. Generally, the month featured above-normal (+0.5 to 2.0˚C) temperatures across most of the province, with areas of warmer temperatures in the Kootenays. The first half of the month was mild with light precipitation and subdued snow accumulation. Several significant storm events affected the province in the second half of January, especially for the southern half of the province. An atmospheric river in late January created flood conditions on Vancouver Island. January precipitation totals were well above normal for the southern half of BC, while the Northwest and North Coast regions were below normal. Snowpack Snow basin indices for February 1st 2018 range from a low of 51% of normal in the Northwest to a high of 165% in the Skagit (Table 1 and Figure 1). Overall, the province has a slightly-above normal snow pack for February 1st, with the average of all snow measurements across the province at 108%, increasing significantly from 96% of normal on January 1st. Well-below normal snowpack is present in the Stikine (67%) and Northwest (51%). Well-above normal snow pack (>130%) is present in the Okanagan, Similkameen, Lower Fraser, South Coast, Skagit and Vancouver Island.
    [Show full text]
  • Growth and Morphometry of the Pygmy Whitefish
    GROWTH AND MORPHOMETRY OF THE PYGMY WHITEFISH (PROSOPIUM COULTERI) INBRITISH COLUMBIA by PETER JAMES MCCART B.A. The University of Oregon, 1958 A Thesis Submitted in Partial Fulfilment of the Requirements for the Degree of MASTER OF SCIENCE in the DEPARTMENT OF ZOOLOGY We accept this thesis as conforming to the required standard THE UNIVERSITY OF BRITISH COLUMBIA October, 1963 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the Head of my Department or by his representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission. Institute of Fisheries Department of Zoology The University of British Columbia Vancouver 8, Canada 6 September 1963 i ABSTRACT The present study is, in part, a description of meristic variation in the pygmy whitefish, Prosopium coulteri, of British Columbia fish with those of other areas. The species was shown to be highly variable meristically both within and between populations. There are indications in some characters of a north-south cline of meristic counts. One character (gill raker counts) seems to form a V-shaped curve of variation. The major part of the study is a comparison of the growth and relative growth of fish from four British Columbia lakes. The two "giant" forms from MacLure and McLeese Lakes are more like one another in relative growth than like either of the two dwarf forms inhabiting Cluculz Lake or Tacheeda Lake.
    [Show full text]
  • Snow Survey and Water Supply Bulletin – April 1St, 2018
    Snow Survey and Water Supply Bulletin – April 1st, 2018 The April 1st, 2018 snow survey is now complete. Data from 132 snow courses and 74 automated snow weather stations around the province (collected by the Ministry of Environment Snow Survey Program, BC Hydro and partners), and climate data from Environment and Climate Change Canada forms the basis of the following report1. Weather The weather in March was relatively cool and remained dry for most of the month until several storm systems moved through the province at the end of the month. Temperatures across the British Columbia were near normal to slightly below normal (-2 to 0˚C relative to normal). Precipitation was well above normal for most locations in the Interior, and significantly below normal for Vancouver Island and the South Coast. Snowpack Snow basin indices for April 1st 2018 range from a low of 65% of normal in the Stikine to a high of 152% in the Similkameen and Okanagan regions (Table 1 and Figure 1). Overall, the province has an above normal snow pack for April 1st. The average of all snow measurements across the province is 127% of normal, increasing significantly from 119% of normal on March 1st. Well-above normal snow packs (>130%) are present in the Upper Fraser West, Okanagan, Similkameen, Boundary, and Skagit. The April 1st snow index for the Okanagan is 152% of normal, which is tied with April 1999 for the highest snow pack dating back to 1980. Above normal snow packs (110-130%) are present in the Middle Fraser, Upper Fraser East, Lower Fraser, Upper Columbia, West Kootenay, East Kootenay, South Coast, and Central Coast.
    [Show full text]
  • Snow Survey and Water Supply Bulletin – January 1St, 2021
    Snow Survey and Water Supply Bulletin – January 1st, 2021 The January 1st snow survey is now complete. Data from 58 manual snow courses and 86 automated snow weather stations around the province (collected by the Ministry of Environment Snow Survey Program, BC Hydro and partners), and climate data from Environment and Climate Change Canada and the provincial Climate Related Monitoring Program have been used to form the basis of the following report1. Weather October began with relatively warm and dry conditions, but a major cold spell dominated the province in mid-October. Temperatures primarily ranged from -1.5 to +1.0˚C compared to normal. The cold spell also produced early season low elevation snowfall for the Interior. Following the snowfall, heavy rain from an atmospheric river affected the Central Coast and spilled into the Cariboo, resulting in prolonged flood conditions. Overall, most of the Interior received above normal precipitation for the month, whereas coastal regions were closer to normal. In November, temperatures were steady at near normal to slightly above normal and primarily ranged from -0.5 to +1.5˚C through the province. The warmest temperatures relative to normal occurred in the Interior, while the coldest occurred in the Northwest. Precipitation was mostly below normal to near normal (35-105%) with the Northeast / Peace as the driest areas. A few locations, e.g. Prince Rupert and Williams Lake, were above 130% due to a strong storm event early in the month. Temperatures in December were relatively warm across the province, ranging from +1.0 to +5.0˚C above normal.
    [Show full text]
  • RBA Cragg Fonds
    Kamloops Museum and Archives R.B.A. Cragg fonds 1989.009, 0.2977, 0.3002, 1965.047 Compiled by Jaimie Fedorak, June 2019 Kamloops Museum and Archives 2019 KAMLOOPS MUSEUM AND ARCHIVES 1989.009, etc. R.B.A. Cragg fonds 1933-1979 Access: Open. Graphic, Textual 2.00 meters Title: R.B.A. Cragg fonds Dates of Creation: 1933-1979 Physical Description: ca. 80 cm of photographs, ca. 40 cm of negatives, ca. 4000 slides, and 1 cm of textual records Biographical Sketch: Richard Balderston Alec Cragg was born on December 5, 1912 in Minatitlan, Mexico while his father worked on a construction contract. In 1919 his family moved to Canada to settle. Cragg gained training as a printer and worked in various towns before being hired by the Kamloops Sentinel in 1944. Cragg worked for the Sentinel until his retirement at age 65, and continued to write a weekly opinion column entitled “By The Way” until shortly before his death. During his time in Kamloops Cragg was active in the Kamloops Museum Association, the International Typographical Union (acting as president on the Kamloops branch for a time), the BPO Elks Lodge Kamloops Branch, and the Rock Club. Cragg was married to Queenie Elizabeth Phillips, with whom he had one daughter (Karen). Richard Balderson Alec Cragg died on January 22, 1981 in Kamloops, B.C. at age 68. Scope and Content: Fonds consists predominantly of photographic materials created by R.B.A. Cragg during his time in Kamloops. Fonds also contains a small amount of textual ephemera collected by Cragg and his wife Queenie, such as ration books and souvenir programs.
    [Show full text]
  • Barkerville Gold Mines Ltd
    BARKERVILLE GOLD MINES LTD. CARIBOO GOLD PROJECT AUGUST 2020 ABOUT THE CARIBOO GOLD PROJECT The Cariboo Gold Project includes: • An underground gold mine, surface concentrator and associated facilities near Wells The Project is located in the historic • Waste rock storage at Bonanza Ledge Mine Cariboo Mining District, an area where • A new transmission line from Barlow Substation to the mine site mining has been part of the landscape • Upgrades to the existing QR Mill and development of a filtered stack tailings since the Cariboo Gold Rush in the 1860s. facility at the QR Mill Site • Use of existing roads and development of a highway bypass before Wells The Project is being reviewed under the terms of the BC Environmental Assessment Act, 2018. CARIBOO GOLD PROJECT COMPONENTS • Underground mine and ore crushing • Water management and treatment CARIBOO GOLD • Bulk Fill Storage Area • New camp MINE SITE • Electrical substation • Offices, warehouse and shops in the • Above ground concentrator and paste concentrator building backfill plant • Mill upgrades for ore processing • Filtered stack tailings storage facility - no QR MILL SITE • New tailings dewatering (thickening tailings underwater and no dams and filtering) plant • New camp BONANZA LEDGE • Waste rock storage MINE • Movement of workers, equipment and • Concentrate transport to QR Mill via Highway TRANSPORTATION supplies via Highway 26, 500 Nyland 26 and 500 Nyland Lake Road. ROUTES Lake Road, Quesnel Hydraulic Road • New highway bypass before Wells (2700 Road) • Movement of waste
    [Show full text]
  • Fish 2002 Tec Doc Draft3
    BRITISH COLUMBIA MINISTRY OF WATER, LAND AND AIR PROTECTION - 2002 Environmental Indicator: Fish in British Columbia Primary Indicator: Conservation status of Steelhead Trout stocks rated as healthy, of conservation concern, and of extreme conservation concern. Selection of the Indicator: The conservation status of Steelhead Trout stocks is a state or condition indicator. It provides a direct measure of the condition of British Columbia’s Steelhead stocks. Steelhead Trout (Oncorhynchus mykiss) are highly valued by recreational anglers and play a locally important role in First Nations ceremonial, social and food fisheries. Because Steelhead Trout use both freshwater and marine ecosystems at different periods in their life cycle, it is difficult to separate effects of freshwater and marine habitat quality and freshwater and marine harvest mortality. Recent delcines, however, in southern stocks have been attributed to environmental change, rather than over-fishing because many of these stocks are not significantly harvested by sport or commercial fisheries. With respect to conseration risk, if a stock is over fished, it is designated as being of ‘conservation concern’. The term ‘extreme conservation concern’ is applied to stock if there is a probablity that the stock could be extirpated. Data and Sources: Table 1. Conservation Ratings of Steelhead Stock in British Columbia, 2000 Steelhead Stock Extreme Conservation Conservation Healthy Total (Conservation Unit Name) Concern Concern Bella Coola–Rivers Inlet 1 32 33 Boundary Bay 4 4 Burrard
    [Show full text]
  • Kamloops TSA - Forest Health Strategy
    Kamloops TSA - Forest Health Strategy Thompson Rivers Forest District April 2017 Executive Summary The Kamloops TSA Forest Health Strategy has for the most part not been changed for this year. There have been minor edits, as well as some additions. It is expected that over the next few years, that there will be more information added with respect to; Stand Establishment Decision Aids, strategies for pests in young stands, stocking standards related to forest health factors and climate change adaptation strategies. The changes of note this year are: • New Root disease guidance Document Update on Bark Beetles in Kamloops TSA: • Areas affected by Western balsam bark beetle have dropped to less than half of 2016 levels resulting in 59,730 hectares infested. The decline is due to lower red attack rates, with stands in the northern portion of the TSA, around Dunn Peak, Trophy Mountain, and Wells gray Park and the upper North Thompson being the most affected. • Spruce beetle – attack levels remain high, with 9,770 hectares identified, the largest new infestation moving into uninfested stands in Wells Gray Park around Kostal Lake, McDougall Lake, and the west arm of Murtle Lake, Angus Horn Creek and the Upper Clearwater River. • Douglas fir beetle – the area affected by Douglas fir beetle more than doubled, to 3,100 hectares in 362 patches and 1,290 smaller spot infestations. The attack is widespread across the southern portion of the TSA with significant red attack in the Wells Gray Park, Barriere River, Adams Lake and Pinantan Lake areas. Douglas fir beetle is anticipated to build in fire damaged trees along the margins of the Elephant Hill, Thuya Lakes and Dunn Lake fires where there is variable burn severity and low intensity ground fires.
    [Show full text]
  • BC Geological Survey Assessment Report 34415
    West LeBourdais Project Reconnaissance Geochemical and Geophysical Survey at the QR Claim Group Cariboo Mining Division NTS 093A/12 TRIM 093A072 52°42.6636’ North Latitude, 121°48.8358’ West Longitude Tenure on which work was conducted: 854573 Prepared for Barkerville Gold Mines Ltd (owner/operator) 15th Floor-675 West Hastings Street Vancouver, British Columbia V6B 1N2 By Angelique Justason Tenorex GeoServices 336 Front Street Quesnel, British Columbia V2J 2K3 December 2013 Table of Contents Introduction........................................................................................................................................1 Property Location, Access and Physiography..........................................................................2 Regional Geology............................................................................................................................... 6 Property Geology............................................................................................................................... 7 Exploration History.......................................................................................................................... 8 2011 Exploration ............................................................................................................................ 11 Self Potential Geophysics Overview and Procedures .............................................................. 13 Conclusions and Recommendations .......................................................................................
    [Show full text]