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BP RISC Description
Key New Features in
BP RISC Version 4
BP RISC
4 Features
BP RISC 4 System Requirements
What's
Coming in BP RISC 5 (no release date yet)
BP
RISC Model Description
BP RISC 4 is a software package for performing fate and transport modeling and human health risk assessments for contaminated sites. A unique feature of
BP RISC
4 is its ability to perform a backward risk calculation as well as the conventional forward risk calculation. The backward risk calculation
in BP RISC 4 refers to calculating a cleanup level for an input value of risk. Fate and transport models are available
in BP RISC 4 to estimate receptor point concentrations in groundwater and indoor and outdoor air. No other RISK package offers all this!
BP RISC
4 can be used to estimate the potential for adverse human health impacts (both carcinogenic and non-carcinogenic) from up to nine exposure pathways. Additional pathways and other non-human health impacts may be considered in future revisions
of RISC.
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Key New Features in
BP RISC Version 4
Version 4.0 of
BP RISC has new features that give it even greater flexibility in assessing risk for the following scenarios:
- Irrigation pathways, i.e. water used for gardening but not for indoor usage
- Vegetables grown in contaminated soil
- Two new vapor models , where the vapors are allowed to biodegrade during transport through the unsaturated zone
- Models for surface water and sediment contamination from impacted groundwater and direct comparison with relevant national standards for these media
- The use of groundwater MCLs (maximum concentration levels) and surface water concentrations in addition to acceptable risk levels as the criteria for back-calculating clean-up targets
- The ability to calculate a site-specific target level (SSTL) for a TPH mixture using the site-specific measured concentrations of the TPH fractions detected in the soil
We feel confident that
BP RISC Version 4.0 provides the latest and most complete package for calculating risk to human health and surface water. This version has been peer-reviewed by Arcadis, Geraghty and Miller in Cambridge, UK. Their review is included in Appendix R
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BP
RISC 4 Features
BP RISC 4 Main Features Include:
- A customizable chemical database with 82 chemicals
- An Excel spreadsheet based on the RBCA algorithms that can be used to replicate the tiered RBCA process
- A detailed user's manual with three in-depth example problems
- The ability to determine risk-based TPH (total petroleum hydrocarbon) targets using the TPH fractions proposed by the U.S. Air Force led TPH Working Group
- The ability to calculate additive risk due to multiple pathways, compounds and receptors (such as a resident exposed as both a child and an adult)
- A Monte Carlo capability for probabilistic risk evaluation
- Fate and transport models that distinguish between presence and absence of phase-separated product (NAPL) in the source zone
BP RISC 4 Exposure Pathways Include:
- Dermal contact with groundwater
- Inhalation of outdoor air
- Ingestion of surface water
- Dermal contact with surface water
BP RISC 4 Fate and Transport Models Include:
- Johnson and Ettinger indoor air model
- Volatilization from groundwater to indoor and outdoor air
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BP
RISC 4 System Requirements
Hardware Requirements
- MS Windows 9x/2000/XP or higher
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What's
Coming in BP RISC 5 Model
New
Features for
BP RISC5:
·
Food web screening models for terrestrial and
aquatic ecological risk assessments
·
Output tables and charts are now created directly
in Excel
·
Particulate emission
model added
·
New plant uptake model (Trapp and Matthies, 1995)
·
BP RISC 5 model chemical database has
been expanded to ~120 chemicals (from 80)
·
User can choose to use either reference concentrations and
unit risk factors, or, inhalation
reference doses and inhalation slope factors
·
All chemical toxicity values updated to be
current with USEPA values
·
Chemical database is much easier to edit and
generate summary tables of chemical properties
·
Mass balanced, depleting source, added
to indoor and outdoor air models
·
References provided (on-line and in Excel
tables) for all chemical
and receptor parameters
·
New databases:
o
Ecological receptors and receptor-specific
information
o
Mammalian and avian toxicity values
o
Worm and plant toxicity values
o
Soil and plant screening
values
·
New human receptor
profiles added (including ones for additive
receptor cases)
·
User can add new receptor and
soil profiles and/or may customize default
values
·
Sediment was added as a media of concern
for human health risk (dermal contact and
ingestion exposure pathways)
BP
RISC 5 Model Surface Water
Criteria
Data
Sets
(expanded):
·
United States Environment Protection Agency National
Recommended Water Quality Criteria (2004)
·
United Kingdom Environmental Quality Standards (statutory and
proposed)
·
Australia and New Zealand Environment and Conservation
Council, Guidelines for Fresh & Marine Water Quality (October 2000)
·
European Commission Water Quality Objective
·
Canadian Council of Ministers for the Environment Canadian
Environmental Quality Guidelines (December 2003)
·
TCEQ (Texas Commission on Environmental Quality) Guidance for
Conducting Ecological Risk Assessment at Remediation Sites in Texas (December
2001)
·
MDEQ (Michigan Department of Environmental Quality) Rule 57
Water Quality Values (February 1, 2005)
·
GLWQI (Great Lakes Water Quality Initiative), Water Quality
Guidance for the Great Lakes System 40 CFR 132 - Table 2 (March 23, 1997)
·
NYSDEC (New York State Department of Environmental
Conservation) Ambient Water Quality Standards and Guidance Values - Table 1
(June 1998, updated January 1999, April 2000, & June 2004)
·
NCDENR (North Carolina Department of Environment &
Natural Resources) 15A NCAC 2B or National Criteria per EPA (October 31, 2004)
·
ODEQ (Oregon Department of Environmental Quality) Guidance
for Ecological Risk Assessment Level II Screening Level Values (12/2001)
·
WA Ecology (Washington State Department
of Ecology), WAC 173-201A Water Quality Standards for Surface Waters of the
State of Washington (Updated 7/1/03)
BP
RISC 5 Model Sediment Criteria
Datasets
(expand
ed):
·
ANZECC - Australia and New Zealand Environment and
Conservation Council, Guidelines for Fresh & Marine Water Quality (October
2000)
·
ARCS - Assessment and Remediation of Contaminated Sediments
Programme
·
CCME - Canadian Council of Ministers of the Environment
·
FDEP - Florida Department of Environmental Protection
·
MDEP - Massachusetts Department of Environmental Protection,
Technical Update: Freshwater Sediment Screening Benchmarks for Use Under the
Massachusetts Contingency Plan (May 2002)
·
NOAA - National Oceanic and Atmospheric Administration
·
ODEQ - Oregon Department of Environmental Quality Guidance
for Ecological Risk Assessment Level II Screening Level Values (12/2001)
·
ORNL - Oak Ridge National Laboratory, Tennessee
·
OSWER - Office of Solid Waste and Emergency Response
·
RIZA - Netherlands Institute for Inland Water Management and
Waste Water Treatment
·
NAWQC - Derived by Equilibrium Partitioning from US EPA
National Ambient Water Quality Criterion
·
WA Ecology - Washington State Department of Ecology, WAC
173-204-320 Table 1 (Standards apply to marine sediments located within Puget
Sound as defined in WAC 173-204-200(19))
BP
RISC 5 Model Soil
and Plant Criteria (new):
·
Oregon - Oregon Department of Environmental Quality Guidance
for Ecological Risk Assessment Level II Screening Level Values (12/2001)
·
Texas - TCEQ (Texas Commission on Environmental Quality)
Guidance for Conducting Ecological Risk Assessment at Remediation Sites in
Texas (12/2001)
Washington State -
Washington State Department of Ecology Terrestrial Ecological Evaluation
Process
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