Chapter 7 Managing Project Impacts Flashcards
The EA process establishes the measures that are necessary to __________, __________, ___________, or __________potentially adverse impacts and, where appropriate, incorporate these into ______________________.
avoid, minimize, reduce, offset;
environmental management plans
Impact management is inherent in what stages of EA?
All of them
Impact mitigation
to make “less severe”
Strategy in EA to reduce the significance, risk, or severity of an anticipated, adverse effect.
a hierarchy of strategies from avoiding impacts to offsetting impacts that simply cannot be avoided, minimized, or restored
often by reducing the geographic extent of the impact, the magnitude of change in baseline condition, or the duration of the impact
For example, managing potentially adverse impacts to important species habitat should first consider options that ___________________________________, followed by options that ______________ habitat loss, ______________ habitat loss during project operations or at project completion, and finally, ______________ for unavoidable habitat loss. Each of these strategies is discussed below
avoid the loss of habitat;
minimize;
restoring;
compensating
Draw diagram for impact mitigation efforts
Fig 7.1 page 127
_______________ potentially adverse effects, and thus _____________ , is the most desirable approach to impact mitigation because it reduces the __________ and _________ needed to lower its severity. It also avoids potential conflict and concerns expressed by those who may ______________________.
Avoiding; preventing them from occurring.
time and financial resources
highly value the affected component .
Methods to avoid potentially adverse impacts include:
the consideration of alternative project locations to avoid impacts to sensitive habitat;
scheduling project construction activities so that they do not conflict with the timing of wildlife migration;
routing ancillary developments, such as access roads and other linear features, to avoid sensitive habitat, stream crossings, or cultural features;
construction of self-contained work camps to avoid potentially negative socio-economic effects caused by site worker–community interaction.
impact avoidance
A form of impact management whereby impacts are avoided at the outset by way of alternative project designs, timing, or location rather than managed or mitigated after they occur.
Impact Avoidance should enter the EA equation ____________.
should enter the EA equation early, since most impact avoidance opportunities are presented early in project design processes through alternative locations of project infrastructure or project design options.
Ecoducts for Avoiding Wildlife Collisions, Northern Sweden
The construction of ecoducts, also called wildlife bridges or wildlife overpasses, is an impact avoidance strategy in areas where wildlife collisions or disruptions to wildlife corridors or crossings are of concern. The image below shows an ecoduct near the LKAB iron ore mine in Kiruna, Norbotten County, northern Sweden. Operating for more than 100 years, the Kiruna mine is one of the world’s largest underground iron ore mines. The mine’s operations also have a significant surface footprint in an area that has traditionally been used by Sami Indigenous people for reindeer herding. Today, only about 10 per cent of Swedish Sami earn a living from reindeer husbandry, following the herd during its annual migration. The mine, coupled with other land uses, creates a bottleneck for herders when reindeer move between summer and winter pastures and poses high risk for collisions at road and railway crossings. This ecoduct and fence line were constructed at the mine site along the herding route to facilitate the movement of reindeer, minimize habitat fragmentation, and avoid collisions with railway traffic.
Buffer zones
An area of undisturbed environment, usually separating a project’s actions or disturbance from background conditions such as a riparian buffer zone.
a common mitigation strategy to minimize sediment loading in streams. While buffer zones and setbacks do not fully prevent erosion or surface runoff from occurring, they do reduce the severity of sediment loading or contamination to aquatic environments caused by runoff.
Restoration
An impact management action focused on restoring environmental quality, rehabilitating certain environmental features, repairing ecological functions, or restoring environmental components to varying degrees.
The objective is to return it to a more desirable condition compared to the state created by project actions. It won’t always be returned to the same pre-disturbance use.
Provide an example of restoration
For example, in cases where the construction of a project requires clearing the vegetated landscape and destruction of important species habitat, impact management efforts can focus on restoring the landscape during project operations or post-operation to resemble the pre-disturbed state or function.
Remediation
The process of post-industrial or post-development site cleanup, which typically involves the removal of contaminants or pollution from soil and water; a part of restoration
Reducing contamination levels of a site to safe levels within the ecosystem to protect human health and to restore certain land uses and hydrological functions
An emerging problem in Canada, and internationally, is the increasing amount of ______________project infrastructure and _______________ with no clear party responsible for __________________________.
abandoned project infrastructure and contaminated project sites with no clear party responsible for remediation or reclamation
Conventional oil and gas deposits are extracted using __________________.
drilling methods whereby the natural pressure of the wells and pumping or compression operations force the resource to the surface
Inactive well
one that has stopped producing or operating for technical or economic reasons but that may be reactivated in the future. However, some of Alberta’s inactive wells date to the early 1900s, suggesting that inactive wells often remain inactive.
There are currently 90 000 inactive wells in Canada.
additional 77,000 wells in Alberta are abandoned, meaning that the well has been ______________________.
“plugged” or “capped” and is no longer operational, but the site has still not been remediated (cleaned up) or reclaimed (restored).
Orphaned well
a well that does not have a legally or financially responsible owner to deal with its closure, reclamation, and site restoration
Orphaned wells occupy land that cannot be safely used for other purposes, are human health hazards, and pose significant risks to the local environment because of leaks and soil and water contamination.
Compensation
The measures taken by the proponent to make up for adverse environmental impacts of a project that exist after mitigation measures have been implemented.
Some environmental effects cannot be avoided, mitigated, or rectified. In such cases, the typical action is compensation for those unavoidable, residual, or irreparable impacts that remain after other impact management options have been exhausted or for which no management alternative exists.
Compensation involves what?
$$$ or re-create environmental habitats at an alternative site.
Compensation can be a controversial form of impact mitigation for many reasons:
the mitigation action is often delayed into the future; the affected component itself is not being replaced in situ; compensating for a physical impact does not necessarily compensate for function; and there can be skepticism that the proponent will actually follow through on compensation measures or payments
LNG Canada Export Terminal Wetland Compensation Strategy
The LNG Canada Export Terminal, proposed by LNG Canada Development Inc., involves the construction and operation of a liquefied natural gas (LNG) processing and storage site and marine terminal for exporting LNG via shipping. The project site is near Kitimat, northern British Columbia, in the traditional territory of the Haisla Nation and within the Coastal Western Hemlock Very Wet Maritime Submontane Variant (CWHvm1) biogeoclimatic ecosystem. The project is among the largest in British Columbia’s history. At its peak, the LNG project will produce 26 million tonnes per annum. The project was subject to EA review under the Canadian Environmental Assessment Act, 2012 and provincially under the British Columbia Environmental Assessment Act. The project received federal EA approval and a provincial EA certificate of approval in June 2015.
The project footprint is 412 hectares, which will require vegetation clearing, grading, and replacement with infrastructure and the unavoidable loss of ecological functions of approximately 85 hectares of wetlands. Included among the EA conditions of approval were the development and implementation of measures to offset the residual loss of wetlands and the development of a wetland compensation strategy. The project’s Wetland Compensation Plan identifies 41 hectares of provincially listed or estuarine wetlands within the project’s footprint that are deemed ecologically significant and subject to a no net loss policy. Applying a 2:1 compensation ratio (wetland functions replaced: wetland functions lost), the plan identified 82 hectares of compensatory wetlands to ensure no net loss. The wetland compensation strategy includes the following components:
i. Implementation of marine fish habitat offsetting to establish 17 ha of estuarine wetlands within the Kitimat River Estuary, with similar habitat function to those lost as a result of project development.
ii. In-lieu fees to an environmental non-governmental organization to deliver land securement and the restoration, enhancement, and/or creation of 65 ha of wetlands through a legally binding agreement with LNG Canada.
iii. Development and delivery, by the environmental non-governmental organization, of a wetland monitoring program in accordance with the compensation plan and agreements with the proponent.
iv. Incorporation of traditional-use plants where appropriate and technically feasible in wetland compensation measures and providing access to those sites for the purposes of gathering traditional-use plants.
environmental management plans
(EMPs) Plans prepared by a proponent that detail the specific impact mitigation strategies for a project and the ways in which they are to be implemented.
also referred to as environmental protection plans or environmental mitigation plans, are often a mandatory requirement in EA.