Sections of Contaminated Sites Guidance

	Project Scoping	Human Health and Ecological Risk
	Systematic planning process	Risk assessment
	Contaminant Screening and Establishing Cleanup Levels	Remediation Operations
	Site Characterization and Cleanup	Closure and Institutional Controls
	Statistical design / analysis
	Monitoring wells	Streamlined Cleanup
	Vapor intrusion	Brownfields
	Analytical Methods and Quality Assurance

Systematic Planning Process

All contaminated site cleanup projects should undergo systematic planning to help manage the inherent uncertainty in data collection. DEC's Contaminated Sites Program encourages contractors to pursue systematic planning training, including basic statistical concepts, to streamline and document the planning process and to provide a defensible sampling approach. Work plans developed through systematic planning will help CSP correctly evaluate various sampling designs and make real-time sampling design changes.

EPA's Systematic Planning Guidance (This document is an expanded version of the August 2000, Guidance for the Data Quality Objectives Process and includes both decision making and estimation using the Data Quality Objectives (DQO) Process.)

EPA page with
guidance QA/G-4)

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Cleanup Level Guidance -- Adopted by Reference

Hydrocarbon Risk Calculator

• The Hydrocarbon Risk Calculator (HRC) can be used as an alternative to the Method 3 on-line calculator and can be used under Method 4 when following the Risk Assessment Procedures Manual. Consult the accompanying User Manual for details on applying this tool at sites and contact your ADEC project manager prior to using it on your project.


• The HRC and manual were developed by Geosphere, Inc. under contract to CH2M Hill and the Federal Aviation Administration (FAA), with input by members of the Statement of Cooperation (SOC) Working Group including staff from ADEC, FAA, U.S. Army, U.S. Army Corps of Engineers, and the Alaska Army National Guard.


• Peer reviews on the HRC were conducted by the University of Alaska, Fairbanks and SLR International Corporation.


• ADEC approves the use of the HRC (version 1.0) as an alternative, peer-reviewed model, and has agreed to make this version available on the Contaminated Sites Program (CSP) website. Review and minor modifications, such as updating revised toxicity values, are anticipated on an annual basis, subject to the availability of CSP resources. Ongoing or ad hoc revisions, updates, and improvements will be reviewed and approved on a case-by-case basis at the department's discretion and subject to the availability of CSP resources to review and approve such revisions.


• ADEC shall not be held responsible for any errors or bugs that may surface during the use and implementation by 3rd party users of the HRC, but will make every effort to ensure such issues are resolved promptly. If issues or inconsistencies with state regulations, guidance or policy emerge during the course of its use which cannot be overcome by simple and timely revisions or other fixes, ADEC reserves the right to remove the HRC from its website and suspend acceptance/use of the worksheet until such issues are resolved.


• Please contact Sally Schlichting (sally.schlichting@alaska.gov; 907-465-5076) if you have questions.


• ADEC Implementing Guidance for the Hydrocarbon Risk Calculator

ADEC recommends referring to this guidance in evaluating PCB cleanup and disposal options at contaminated sites. Coordination with both ADEC and EPA's Region 10 PCBs Coordinator is required for all contaminated sites with PCB concentrations greater than 1 mg/kg (ppm).

Region X PCBs Coordinator: Daniel Duncan, EPA Region 10, Office of Compliance & Enforcement, 206-553-6693, 206-553-1775 fax

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PDF 713K  or  DOC 2.08MB

MULTI INCREMENT® Sampling:
Under the correct circumstances and when properly conducted, MULTI INCREMENT sampling can produce a more accurate estimate of the mean contaminant concentration and at a lower cost than discrete sampling. Therefore, CSP endorses the use of MULTI INCREMENT sampling as part of the cleanup process to help ensure protection of human health and the environment. CSP encourages those interested in utilizing this approach to pursue method-specific training and to coordinate with their DEC CSP Project Manager during work plan development.

/s/
Steve Bainbridge, DEC Contaminated Sites Program Manager
For more information, contact Bill Janes, 907-465-5208

 

Draft Guidance on MULTI INCREMENT Soil Sampling

DEC Presentation, "MULTI INCREMENT Sampling - Lessons Learned," given at the Alaska Forum on the Environment

DEC case study to evaluate protocols for MULTI INCREMENT sampling

PDF 549K

Munitions, for  informational purposes only:
Army Corps of Engineers Interim guidance for the Implementation of Incremental Sampling of Soil for the Military Munitions Response Program. The State of Alaska guidance requirements still need to be followed. The Corps' interim guidance provides helpful information on the necessity of up-front planning and agreement on data quality objectives and sampling unit determination.

PDF 3.1MB

Draft Vapor Intrusion Guidance
The Contaminated Sites Program has recently completed its Draft Vapor Intrusion Guidance for Contaminated Sites for use at contaminated sites where vapor intrusion has been identified as a complete human health exposure pathway.  The document includes a 12-step process for evaluating and responding to a vapor intrusion concern, and provides guidance on soil gas and indoor air sampling methodology.  This draft document is also available for review and comment.  Vapor intrusion is a rapidly developing field, and we expect to update this guidance as new information becomes available. If you have any questions or comments, please contact Denise Elston, 907-465-5207.

Please provide comments in written form by May 31, 2011. DEC will revise the guidance based on applicable comments and new information or studies that we have determined improve the evaluation of the vapor intrusion pathway. DEC anticipates it will issue a revised guidance in November 2011. Additional guidance revisions will occur in the future as new information becomes available. Please send all written comments to Janice Wiegers at Janice.Wiegers@alaska.gov.

DEC also recommends use of Vapor Intrusion Pathway: A Practical Guideline by the ITRC, Interstate Technology and Regulatory Council)

PDF 3.1 MB

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PDF 713 K  or  
DOC 2.08 MB

Laboratory Data and Quality Assurance Policy - Technical Memorandum
 Please contact Earl Crapps with questions at 907-269-7691.

EPA website

PDF 1.4 MB

PDF 16 K

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Ecoscoping Guidance

Technical Background Document for Selection and Application of Default Assessment Endpoints and Indicator Species in Alaskan Ecoregions

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PDF 3.1 MB

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Site Closure Memorandum DEC decides when sites may be closed under 18 AAC 75.380 and 18 AAC 78.276, including the use of institutional controls. Although this memo identifies how DEC staff will make closure determinations, we are making it available to anyone who may have an interest in site closure decision-making. This memorandum replaces the "Site Closure Policy and Procedures, Draft Final" previously posted on this page.

Institutional Control Guidance This guidance provides detailed information on the use and applicability of various institutional controls, and gives descriptive examples of specific IC instruments such as servitudes and deed notices. Attachments include a guidance table, deed notice templates, equitable servitude template, and equitable servitude FAQs.

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Electronic filing (e-file) Guidance

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UST FR webpage

Part 1 PDF 1.12M
Part 2 PDF 1.01M

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The following forms are required to be submitted whenever you perform significant work at an Underground Storage Tank system.

UST Registration
Registration for Installation, Repair, Upgrade or Reconfiguration for new or existing underground storage tank. No more than 30 days after installation or return to operation (for Upgrades, too)

Corrosion Log
60-Day Log for Impressed Current Cathodic Protection

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