Hydrocarbon Impacts = Incidences des hydrocarbures

Key Publications

Preliminary information package for the Northern Gas Pipeline Project   /   ArctiGas Resources Limited Partnership   Northern Route Gas Pipeline Corporation
[Canada : s.n., 2002].
iv, i, 67, [41] leaves : ill., maps ; 28 cm.
Cover title: Preliminary information package of the Northern Gas pipeline project : volume I.
For details regarding the NGPP corridor, refer to Volume II: Northern Gas Pipeline Project corridor atlas.
Submitted to the National Energy Board of Canada on January 16, 2002.
ASTIS record 54967.
Languages: English
Web: http://pubs.aina.ucalgary.ca/gran/54967.pdf
Libraries: XQGLW

Northern Route Gas Pipeline Corporation and ArctiGas Resources Limited Partnership propose a pipeline corridor within which the final pipeline route will be established. The proposed corridor starts in the vicinity of Prudhoe Bay, proceeds offshore in the shallow Beaufort Sea to the Mackenzie River Delta, continues southeast in the Mackenzie River Valley into Alberta, to a point near Edmonton. From this loction, the gas would be carried to final destinations by the existing and expanded pipeline networks. ... This is a similar route to that proposed some twenty-five years ago by other entities, with the exception that at that time, the proposed pipeline would have been onshore from Prudhoe Bay to the Mackenzie River Delta. At that time, the Berger Commission (1977) recommended that the Yukon North Slope be protected as a National Park and that no pipeline be permitted to be built onshore. ... Northern Route Gas Pipeline Corporation believes that the corridor proposed in this Preliminary Information Package results in the lowest cost project and will contribute to lower tolls. The proposed corridor means that both U.S. and Canadian gas can be transported in the same system, providing significant economies of scale and lower tolls, thereby providing the greatest incentive for exploration and development of natural gas reserves along the pipeline corridor. This will result in the creation of the greatest number of long-term jobs in both Canada and Alaska. ... The information contained in this Preliminary Information Package provides an overview of Northern Route Gas Pipeline Corporation's proposal and illustrates the feasibility and viability of the proposed project. To that end, Northern Route Gas Pipeline Corporation and ArctiGas Resources Limited Partnership respectfully request that the National Energy Board, along with all other interested regulatory agencies, commence the creation of a scoping package for the Northern Gas Pipeline Project. ... (Au)

Devon Canada Corporation Beaufort Sea Exploratory Drilling Program : project description   /   Devon Canada Corporation
Calgary, Alta. : Devon Canada Corp., 2002.
71 leaves in various foliations : ill., maps (some folded) ; 28 cm.
Cover title: Beaufort Sea Exploratory Drilling Program : project description.
ASTIS record 50445.
Languages: English
Libraries: ACU

Devon Canada Corporation (Devon) is pleased to submit 15 copies of the Project Description for its proposed Beaufort Sea Exploratory Drilling Program as the first step toward obtaining Drilling Program Authorization (DPA). A copy of this covering letter has been sent to the Canadian Environmental Assessment Agency (CEAA) since this offshore drilling project will trigger an environmental assessment under the Canadian Environmental Assessment Act. We understand that this is the first application for this type of work to be submitted in some time for the Beaufort Sea. Furthermore, it is also the first time that the CEAA process has been applied to an offshore hydrocarbon drilling project in this region. As a result, a new and coordinated regulatory approach will be required which addresses the requirements of CEAA, as well as the requirements for environmental assessment and review under the Inuvialuit Final Agreement (IFA). Devon acquired four exploration licenses in the shallow waters of the Canadian Beaufort Sea on August 15, 2000. In order to retain the exploration rights to the lands covered by these licenses for the full term of the agreement, Devon must drill one well on each license area within a specified period (currently 5 years). Following the award of the exploration licenses, Devon immediately commenced planning for a comprehensive 3-D marine seismic survey that was scheduled to extend over a 2-year period. Devon successfully conducted the first year of the survey during the 2001 open water season and intends to complete the work this summer (2002). Processing and interpretation of the 2001 seismic data are presently underway. Based on the work conducted to date, several "preliminary" drilling targets have been identified, which have been used as the basis for initial project planning. A substantial amount of additional interpretation is required before these targets are confirmed as viable drilling prospects. Concurrent with the seismic surveys, Devon has conducted a preliminary assessment of the availability and feasibility of using various drilling platform concepts in its lease areas. Based on the "preliminary" drilling targets, a deep caisson-type platform appears to be well suited for the exploration program. However, Devon will not be in a position to finalize the selection of a drilling platform until the seismic surveys are completed and drilling prospects are verified. This is not expected to occur until late in the fourth quarter of 2002 or early in 2003. During the interim, Devon will continue to evaluate potential drilling system options. Regardless of the final drilling system(s) selected, Devon intends to adopt a "winter-only" drilling strategy. Devon will also focus only on drilling targets located within the landfast ice regime which normally extends offshore to water depths of between 15 m and 20 m. The winter-only drilling strategy has been adopted since, under a "worst case scenario" (as required under the IFA), the environmental impacts of a potential hydrocarbon release onto the ice in winter are considered to be less severe and more manageable than a spill in open water. In addition, various sensitive wildlife species that migrate into the Beaufort Sea region each summer are not present during the winter period. Devon's current project timeline accommodates drilling of the first offshore well during the 2004-2005 winter season. In order to meet this schedule, Devon must successfully complete its marine seismic program during the 2002 open water season to be able to select final drilling prospects. In addition, it is expected that Devon would have to commit to major project expenditures in mid-2003 to meet the 2004-2005 drilling window. Therefore, we have assumed that, by mid-2003, the coordinated regulatory approvals process would have progressed to the point that Devon can be confident there are no significant outstanding regulatory issues that would jeopardize the project schedule or costs . This would include knowledge of, among other things, any environmental conditions that may be attached to the project, and any conditions related to relief well capability, development of the "worst case scenario", oil spill response, compensation and liability. Finally, if we are successful in drilling the first well according to our schedule, and we proceed to drill one well on each of the four licenses during subsequent winter seasons, the drilling program could extend beyond the timelines set out in the existing exploration licenses (under Period 1 of the Licence). Therefore, Devon has initiated discussions with Indian and Northern Affairs Canada regarding license commitments. ... [Revised exploration licences have resulted in revisions to the timelines described in this report.] (Au)

Heritage resource survey - Mackenzie Delta : summary report   /   Inuvialuit Environmental & Geotechnical Inc.   AEC West Ltd. [Sponsor]   Anadarko Canada Corporation [Sponsor]   Devon Canada Corporation [Sponsor]   BP Canada Energy Company [Sponsor]   Burlington Resources Canada Energy Ltd. [Sponsor]   Chevron Canada Resources Limited [Sponsor]   Conoco Canada Resources Limited [Sponsor]   Petro-Canada [Sponsor]   Shell Canada Limited [Sponsor]
Calgary, Alta. ; Inuvik, N.W.T. : Inuvialuit Environmental & Geotechnical Inc., 2002.
vi, 16 leaves : col. ill., col. maps ; 29 cm.
Project #5117-01.
Bison Historical Services was the sub-contractor that helped with the survey.
ASTIS record 51067.
Languages: English
Libraries: ACU

... The primary goals of the Mackenzie Delta Heritage Resource Survey (HRS) were to: promote preservation of the heritage resource base; to evaluate the potential for heritage resources for planning and route selection purposes; to address the need for more detailed and accurate mapping of the historical sites; and to highlight the relationship of any historical resources to future development. The HRS was conducted on lands held by the various Operators within their respective landholdings. These licenses include both Crown and Inuvialuit Private lands. ... Using as its point-of-reference the soil, vegetation, and geomorphology within the Mackenzie Delta, a preliminary predictive map-model of heritage resources was created that integrated information from existing archival records, maps, traditional knowledge, and air photos. Based on an analysis of terrain characteristics, drainage characteristics, geomorphological features and landforms, and specific focal points or "congruencies" in the terrain, the model reflects known and potential site distributions. A field reconnaissance that included aerial surveys, as well as extensive on-the-ground inspections, provided the second phase of information to refine the map-model. The Mackenzie Delta HRS resulted in the following: 84 previously discovered sites were re-visited and mapped; 86 previously undocumented heritage sites were identified and recorded; 89 previously unrecorded traditional land-use sites were recorded. The predictive model reflects the distribution of known and potential heritage sites within the Inuvialuit Settlement Region (ISR) by depicting lands of limited, moderate, high and extreme archaeological potential. In addition to accurately geo-rectifying known sites and identifying new sites, the HRS also monitored impacts to sites from the previous years seismic and drilling programs. While impacts due to seismic activities were noted, they were limited and relatively insignificant within the context of the overall development programs. (Au)

Vegetation classification and wildlife habitat suitability modeling in the Mackenzie delta region   /   Inuvialuit Environmental & Geotechnical Inc.   AEC West Ltd. [Sponsor]   Anadarko Canada Corporation [Sponsor]   Devon Canada Corporation [Sponsor]   BP Canada Energy Company [Sponsor]   Burlington Resources Canada Energy Ltd. [Sponsor]   Chevron Canada Resources Limited [Sponsor]   Conoco Canada Resources Limited [Sponsor]   Petro-Canada [Sponsor]   Shell Canada Limited [Sponsor]   Wildlife Management Advisory Council (N.W.T.) [Sponsor]
Calgary, Alta. ; Inuvik, N.W.T. : Inuvialuit Environmental & Geotechnical Inc., 2002.
vi, 66 p., [15] leaves : ill., 15 folded maps ; 29 cm.
Project #5003-01.
Appendix A: Data sheets for field surveys - Appendix B: Notes from community consultation - Appendix C: Details on structure of wildlife models.
15 folded coloured maps.
One large folded map in back map pocket.
ASTIS record 51071.
Languages: English
Libraries: ACU

To better assess the environmental impacts and cumulative effects of oil and gas developments, and to aid in the development of future environmental management plans, Inuvialuit Environmental & Geotechnical Inc. (IEG) was commissioned by nine energy companies operating in the Inuvialuit Settlement Region (ISR) and the Wildlife Management Advisory Council - Northwest Territories (WMAC-NWT) to conduct a biophysical survey of the Mackenzie Delta Region, NWT. The biophysical survey incorporated remote sensing data, field surveys and traditional ecological knowledge in an effort to illustrate a refined picture of that region's floral and faunal diversity. In July 2001, flora and fauna were surveyed at >500 sites throughout the Mackenzie Delta Region, including the Richardson Mountains, Peel Plain, Mackenzie Delta, Husky Lakes, and Tuktoyaktuk Peninsula. Using information obtained during air calls (site descriptions, plant community types, percent cover, and other physical parameters) and ground plot surveys (vegetation composition, vegetation structure, hiding cover, and wildlife signs), two multi-spectral satellite Landsat7 TM images were classified and merged to create a uniform map of the area. Integrating the ground surveys, satellite imagery, and traditional ecological knowledge (TEK); the analyses resulted in the following information: Twenty unique spectral classes were identified and mapped, with each class representing a different vegetation community; Vegetation community diversity was calculated using Shannon's H values, and was subsequently mapped; Landscape diversity was calculated by examining the spatial variation of vegetation community diversity across the landscape and was also mapped; Habitat suitability indices (HSIs) representing potential wildlife habitat were developed and mapped; A wildlife species richness map, based on an overlay of all HSI models, was created. The landscape classification indicated that the terrestrial component of the study area consisted primarily of 'Low Willow Alder' (26%), followed by 'Low Birch/Dwarf Shrub' (12%), 'Open Conifer Forest' (11.5%), 'Woodland Conifer' (10.2%), 'Tussock Tundra' (10.1%), 'Sedge' (10%), 'Tall Willow Alder' (8%), 'Mud/Silt' (3.5%), 'Graminoid' (2.8 %) and 'Barren Rock' (1.6%). Wildlife Valued Ecosystem Components (VECs) were selected for habitat suitability index (HSI) modelling. VECs were selected based on community consultation and community conservation plans, Committee on the Status of Endangered Wildlife in Canada (COSEWIC) status, their standing as umbrella species, and their ecological significance. Ten species were modelled, including: caribou, moose, snowshoe hare, beaver, brown lemming, collared lemming, great gray owl, white fronted goose, rock ptarmigan and willow ptarmigan. For all VECs, information from literature searches, community consultation, and ground surveys was used to determine habitat quality and construct the models. ... Models were then assessed through community consultations, and ground survey records of wildlife faecal pellets and browse observations. Finally, models were combined to create an overall wildlife species richness map. Concentrated areas of high vegetation community diversity occur in the Peel Plain region, the Caribou and Campbell Hills, the Miner River, Richards Island and the Richardson Mountains. The delta was generally characterized by low vegetation community diversity, possibly due to frequent flooding and the presence of forests with low species richness. In contrast, the delta had high landscape diversity, which is likely representative of a large number of habitat patches for wildlife (high landscape diversity = high1y variable vegetation community diversity). This indicates that the delta, overall, may be important in terms of habitat diversity for wildlife, which is in agreement with the community consultations. ... Areas in the study region that appear to be of significant ecological importance with r espect to wildlife species richness (VEC 'hotspots'), which is related to vegetation community structure and landscape diversity, occur throughout the entire study area, but are more heavily concentrated in the Peel Plain region, the Campbell Hills southeast of Inuvik, areas east of Sitidgi Lake, and areas south of the Husky Lakes. Small pockets of hotspots are also scattered throughout the Mackenzie Delta proper. ... (Au)

Marine mammal and acoustical monitoring of Anderson Exploration Limited's open-water seismic program in the southeastern Beaufort Sea, 2001   /   L.G.L. Limited, Environmental Research Associates   Miller, G.W. [Editor]   Jasco Research Ltd.   Davis, R.A. [Editor]   Devon Canada Corporation [Sponsor]
King City, Ont. : LGL Ltd., 2002.
Appendix A: 1/3 octave band levels [follows Chapter 3] - Appendix B [follows Chapter 5].
Contents: Chapter 0_Executive Summary.pdf - Chapter 1_Background and Description.pdf / G.W. Miller - Chapter 2_Seismic Program Described.pdf / G.W. Miller - Chapter 3_Acoustic Monitoring.pdf / A. MacGillivray, D. Hannay and S. Carr - Chapter 4_Vessel-based Monitoring.pdf / V.D. Moulton, G.W. Miller and A. Serrano - Chapter 5_Aerial Monitoring.pdf / M. Holst, G.W. Miller, V.D. Moulton and R.E. Elliott - Chapter 6_Integration of Monitoring Results.pdf / G.W. Miller, R.A. Davis, V.D. Moulton, A. Serrano and M. Holst.
LGL final report TA2618-1.
Collation of the print version: xvi, 12, 15, 51, 56, 42, 23 : ill., maps ; 28 cm.
ASTIS record 52709.
Languages: English
Libraries: ACU

Anderson Resources Ltd. (now Devon Canada Corporation) conducted an open-water seismic exploration program offshore of the Mackenzie Delta in the Canadian Beaufort Sea during the late summer and autumn of 2001. ... In order to address concerns about the effects of seismic activity on marine mammals and indirectly, subsistence hunting, Anderson retained LGL Limited and JASCO Research Ltd. to develop a monitoring and mitigation plan that was designed to assess the effects of the marine seismic program on marine mammals in the region. The monitoring and mitigation program consisted of three primary components: acoustic measurements, vessel-based observations and aerial surveys. The monitoring plan outlined overall objectives that were designed to: address existing data gaps; answer questions about potential seismic effects on marine mammals in the study area; provide information required to recommend modifications (if needed) to the seismic program planned for 2002; and address the concerns of communities and regulators. ... Community consultation and peer review were the key elements of the approach. ... The acoustic sources used in the seismic operations were two 2250 in³ arrays of 24 sleeve-type airguns. ... Acoustic monitoring was conducted ... while seismic operations were being conducted on the Western Streamer program area. ... Three marine mammal observers (biologists and Inuvialuit observers) were stationed on the seismic vessel throughout the seismic exploration period .... They monitored the occurrence and behaviour of marine mammals near the seismic vessel during all daytime and nighttime periods when the airgun array was operating and when it was not operating. .. In addition to the vessel-based monitoring, a chartered de Havilland Twin Otter ... was used to conduct aerial monitoring of a much larger region surrounding the immediate vicinity of the seismic vessel. Aerial surveys were conducted to monitor the distribution, movements and general activities of belugas, bowheads, and other marine mammals in and adjacent to the immediate seismic exploration area. ... The 2001 marine mammal monitoring and mitigation program conducted off the Mackenzie Delta provided data concerning the reactions of marine mammals to the marine seismic operations. The combined vessel-based and aerial monitoring documented relatively small zones of avoidance around the operations area for seals and bowhead whales, and a much larger zone of avoidance for beluga whales. The zone of avoidance for bowhead whales in the summer was much smaller than that observed for migrating bowhead whales in recent autumn studies in Alaskan waters. Hunters' concerns about possible long-distance effects of seismic surveys on beluga whales and seals were important in defining the scope of the monitoring studies. The principal mitigation measure undertaken with respect to subsistence hunting was to delay the start of the seismic program until after the 2001 beluga hunt was completed in late July. Airgun operations did not begin until early August. The total number of whales landed by subsistence harvesters in 2001 was about the same as during the previous summer. Thus, deferring the start of the seismic program until after the hunt was completed successfully mitigated potential negative consequences on the beluga hunt. (Au)

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