Effective
Date
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Description
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Link
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October 2011
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Guidance for the Evaluation of Imported and Exported Fill Material, Including Contaminant
Characterization of Stockpiles:
Provides guidance related to import and export of fill material for contaminant
removal or remediation sites. This includes:
- The HEER Office definition of "acceptable fill material"
- Overview of the fill material determination process
- Some sources of fill considered suspect for contamination
- Fill material sampling strategies and methods (including stockpiles), and
- Other fill material management considerations
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PDF Link
will open a new window.
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March 2011
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Use of Decision Unit and Multi-increment Soil Sample Investigation Approaches to
Characterize a Subsurface Solvent Plume.
- TCE-contaminated soil located from 6 ft below ground surface down to 15-25 feet
below ground surface at a site on Hickam Air Force Base, O`ahu was investigated
using Decision Unit (DU) and Multi-increment Sampling (MIS) techniques.
- 29 borings were installed within an area of approximately 100,000 square feet (the
DU), and DU soils were further subdivided into seven vertical layers. The boreholes
and layers were investigated separately, but combined to make decisions about the
DU as a whole.
- A total of 164 “core increments” (a section of a borehole corresponding to a specific
DU layer) were subsampled and collected from targeted DU layers, and replicates
were also collected from a number of boreholes.
- Data was utilized to determine average concentrations of VOCs in each borehole and
for targeted DU layers. The data were also used to identify the lateral and vertical
location and mass of the subsurface contamination.
- Note: The data tables included in the PDF copy of this report (see "PDF Link")
are provided in EXCEL Tables HERE to enable users to run discrete vs multi-increment
sample scenarios, or other analyses of this data.
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PDF Link
will open a new window.
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March 25, 2011
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Technical Guidance Manual Notes: Decision Unit and Multi-increment Sample Investigations.
- A compilation of notes and recommendations for Decision Unit (DU) and Multi-increment
Sampling (MIS) site investigations.
- Addendum to TGM guidance, based on experience since publication of the revised TGM
in 2008 and 2009.
- This information will be incorporated in future updates to the TGM.
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PDF Link
will open a new window.
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October 2010
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Update to Soil Action Levels for Inorganic Arsenic and Recommended Soil Management
Practices:
Presents an update to the 2008 soil management practices for inorganic arsenic.
- Categories for management and evaluation of arsenic-contaminated soil have been
revised and simplified,
- Presents comparison data of soil exposure to dietary exposure,
- Presents a comparison to the 2010 Draft USEPA Arsenic Toxicity Review
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PDF Link
will open a new window.
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June 2010
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Update to Soil Action Levels for TEQ Dioxins and Recommended Soil Management Practices:
Presents an update to the action levels and soil management practices for dioxins
and furans ("TEQ Dioxins").
- Provides updated 2010 TEQ Dioxin Soil Action Levels,
- Categories and guidance for evaluation and management of dioxin-contaminated soils
are presented,
- Detailed information on the development and support of the action levels is provided
in three Attachments
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PDF Link
will open a new window.
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October 2008
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Batch Test Leaching Model Spreadsheet:
Spreadsheet to calculate Kd desorption coefficient and estimate contaminant concentration
in source area leachate and in groundwater.
- Refer to April 12, 2007 guidance on "Use of Laboratory Batch Tests to Evaluate
Potential Leaching of Contaminants from Soil" for background and use of this
spreadsheet
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XLS Link
will open a new window.
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June 27, 2007
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Long-term Management of Petroleum-Contaminated Soil and Groundwater:
Guidance for long-term management of residual petroleum contamination in soil and
groundwater at sites where full cleanup is not practical. Includes
- Revisions to Target Contaminants of Concern for petroleum-contaminated media,
- Identification of specific environmental concerns in an Environmental Hazard
Assessment,
- Identification of long-term management needs and preparation of an Environmental
Hazard Management Plan,
- Need/Options for potential continued HDOH oversight
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PDF Link
will open a new window.
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April 12, 2007
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Use of Laboratory Batch Tests to Evaluate Potential Leaching of Contaminants from
Soil:
Guidance for assessing the potential impact to groundwater posed by leaching of
contaminants from vadose-zone soils. This model uses site-specific soil data to
evaluate contaminant mobility and estimate contaminant concentrations in soil leachate
and future impacts to groundwater based on leachate dilution assumptions.
- See October 2008 Batch Test Leaching Model Spreadsheet to facilitate use
of this model.
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PDF Link
will open a new window.
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Initially posted February 2005 then periodically updated – see link for latest update
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Screening for Environmental Hazards at Sites with Contaminated Soil and Groundwater
(or "EHE Guidance"). The HEER Office EHE Guidance and HEER Office TGM are the two
major HEER Office technical guidance documents. Topics covered in the EHE Guidance
include:
- Environmental Action Levels for Soil, Soil Gas, and Groundwater
- Environmental Action Levels Surfer (electronic lookup tables)
- Guidance on the site-specific evaluation of environmental hazards, including direct
exposure, vapor intrusion, leaching and contamination of groundwater, impacts to
drinking water resources, impacts to aquatic and terrestrial ecological habitats,
gross contamination, etc.
- Additional guidance on the preparation of Environmental Hazard Evaluations (EHEs)
- Additional spreadsheet models for use in more site-specific EHEs
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Link
will open a new window.
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