Environmental Guideline for Contaminated Site Remediation

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  • 8/10/2019 Environmental Guideline for Contaminated Site Remediation

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    November 2003

    Environmental Guideline

    for

    Contaminated Site Remediation

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    Guideline for Contaminated Site Remediation

    1

    INTRODUCTION...................................................................................................................1

    1.1 DEFINITIONS ...................................................................................................................1

    1.2

    ROLES AND RESPONSIBILITIES.........................................................................................3

    1.2.1 Environment Division.............................................................................................31.2.2 Responsible Party .................................................................................................31.2.3 Other Regulatory Agencies ...................................................................................31.2.4 Department of Transportation, GNWT...................................................................31.2.5 Office of the Fire Marshal, GNWT.........................................................................41.2.6 Office of the Chief Medical Officer, GNWT............................................................41.2.7 Local Government .................................................................................................4

    2

    CONTAMINATED SITE MANAGEMENT PROCESS ..........................................................5

    2.1 STEP 1- INITIAL NOTIFICATION .......................................................................................6

    2.2

    STEP 2- INITIAL SITEASSESSMENT ................................................................................6

    2.2.1 Environmental Site Assessment............................................................................7Phase I: Site Information Assessment ..................................................................................7Phase II: Reconnaissance Testing Program.........................................................................8Phase III: Detailed Testing Program .....................................................................................82.2.2 Land Use ...............................................................................................................92.2.3 Application of Remediation Criteria at Contaminated Sites.................................10

    2.3 STEP 3- PREPARATION OF A REMEDIALACTION PLAN...................................................122.4 STEP 4- REMEDIALACTION PLAN IMPLEMENTATION......................................................132.5 STEP 5- SITE CLOSURE ...............................................................................................13

    3 CONCLUSION...................................................................................................................13

    4 REFERENCES...................................................................................................................14

    APPENDIX 1...............................................................................................................................15APPENDIX 2...............................................................................................................................17APPENDIX 3...............................................................................................................................21APPENDIX 4...............................................................................................................................27APPENDIX 5...............................................................................................................................29APPENDIX 6...............................................................................................................................31APPENDIX 7...............................................................................................................................33APPENDIX 8...............................................................................................................................35

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    Contaminated Site Areas of land, water, groundwater, or sediments that have levels ofcontaminants exceeding the remediation criteria. Contaminantsources can include on-site burial of wastes, small, frequent drips andspills, stockpiling and storage of materials, major spills, and releasesduring fires. Contamination may also be due to illegal dumping of

    contaminated soil. Contaminated sites may have short or long termconsequences to the health of people or the quality of theenvironment.

    Discharge Includes any pumping, pouring, throwing, dumping, emitting, burning,spraying, spreading, leaking, spilling, or escaping.

    Environment Means the components of the Earth and includes(a) air, land and water,(b) all layers of the atmosphere,(c) all organic and inorganic matter and living organisms, and(d) the interacting natural systems that include components referred

    to in paragraphs (a) to (c).

    Inspector Means a person appointed under subsection 3(2) of the EPAandincludes the Chief Environmental Protection Officer.

    Qualified Person A person who has an appropriate level of knowledge and experiencein all aspects of contaminated site investigation, remediation andmanagement.

    Remedial Action Plan A report that identifies Site-Specific Remedial Objectives for a site,identifies remedial options and outlines their feasibility, andrecommends and describes a preferred conceptual remediation plan,

    a performance monitoring plan, and if appropriate, requirements forongoing site management.

    Remediation The improvement of a contaminated site to prevent, minimize, ormitigate damage to human health or the environment. Remediationinvolves the development and application of a planned approach thatremoves, destroys, contains or otherwise reduces availability ofcontaminants to receptors of concern.

    Remediation Criteria The numerical limits or narrative statements pertaining to individualvariables or substances in water, sediment or soil which arerecommended to protect and maintain the specified uses of

    contaminated sites. When measurements taken at a contaminatedsite indicate that the remediation criteria are being exceeded, theneed for remediation is indicated.

    Additional definitions can be found in Appendix 2.

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    1.2 Roles and Responsibi lities

    1.2.1 Environment Division

    The Environment Division (ED) of ENR is the main contact concerning remediation of

    contaminated sites on Commissioners Land. ED determines the required level of remediationusing the remediation criteria cited in this document. ED also reviews your remediation plan andmonitors the progress of the project.

    ED programs are applied primarily to Commissioners Land, municipal lands or lands involvingGNWT activities. TheEPAprovides the legislative authority. Contact ED for a listing of relevantlegislation and guidelines or visit the web site at http://www.enr.gov.nt.ca/eps.

    ED will provide advice on remediation measures, but it is thesole responsibility of the polluter and landowner to prov ideadequate site remediation.

    1.2.2 Responsib le Party

    If the person responsible for a site is notified or otherwise has reason to believe that the site ispotentially contaminated, that person shall immediately report the incident and ensure anappropriate evaluation of the potential adverse effects and risks is completed to determine whataction, if any, is required under the EPAor this guideline.

    These responsibilities can include the following:

    Exercising timeliness in all matters related to the contaminated site;

    Retaining a qualified person (see Section 1.1) to assess the site to determine thepresence and extent of contamination;

    Developing a remedial action plan; Contacting affected or interested parties including: regional environmental health officer,

    Office of the Fire Marshal, local fire department, local government, landowner, affectedadjacent landowners, Aboriginal claimant organization, or any other party as need beregarding health and safety concerns; and

    Remediating the contaminated site to acceptable levels.

    1.2.3 Other Regulatory Agencies

    Several external agencies may have to be involved with the management of a contaminated sitedue to their legislative responsibilities. Some of the other agencies that may be involved are:

    1.2.4 Department of Transportation, GNWT

    The Department of Transportation is responsible for administering the Transportation ofDangerous Goods Act and Regulations (NWT) including the transportation of contaminated soils(see Appendix 7).

    http://www.enr.gov.nt.ca/epshttp://www.enr.gov.nt.ca/eps
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    1.2.5 Office of the Fire Marshal , GNWT

    The Office of the Fire Marshal has authority over the storage, handling, use and processing offlammable and combustible liquids under the Fire Prevention Act and the withdrawal of tanksfrom service.

    1.2.6 Office of the Chief Medical Officer, GNWT

    Contaminated sites may impact

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