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RISC5

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 RISC5 Download/Installation Instructions FREE $0.00
 RISC 5 Tutorial $0.00
 RISC5 User's Guide $0.00
 RISC5 Download $875.00
 RISC5 Regular Mail $935.00
 RISC5 Regular Mail Upgrade  $460.00
 RISC 5 Download Upgrade $400.00
 RISK Bundle (RBCA Tool Kit for Chemical Releases + RISC5) Download $1,650.00
 RISK Bundle (RBCA Tool Kit for Chemical Releases + RISC5) Reg Mail $1,750.00
 RISC 5 Download (Lost Original Copy) $25.00

RBCA Tool Kit For Chemical Releases



Page Content

 

    RISC5

    What's New in RISC5

    Key Features of RISC5

    Expanded Data Sets in RISC5

    RISC5 Exposure Pathways Include

    RISC5 Fate and Transport Models Include

    Overview of Features

    RISC5 System Requirements

    Additional Features in RISC5


RISC5

 

Overview

RISC5 is the premier software package for performing fate and transport modeling as well as human health and ecological risk assessments for contaminated sites. RISC5’s distinguishing feature is its ability to perform backward risk calculations in addition to conventional forward risk calculations. Backward risk calculation in RISC5 computes a cleanup level for an input risk value. RISC5 also offers fate and transport models to estimate receptor point concentrations in both air and groundwater. RISC5 is the only RISC package to offer these features while using up to nine exposure pathways to estimate the potential for adverse human health impacts. Additional pathways and other non-human health impacts may be considered in future revisions of RISC.

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What's New in 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
  • New plant uptake model (Trapp and Matthies, 1995)
  • RISC5 model chemical database has been expanded from 80 to ~120 chemicals
  • 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
  • Now much easier to use chemical database to edit and generate summary tables of chemical properties
  • Mass balanced, depleting source, added to indoor and outdoor air models
  • References provided (online and in Excel tables) for all chemical and receptor parameters
  • New databases:
  • Ecological receptors and receptor-specific information
  • Mammalian and avian toxicity values
  • Worm and plant toxicity values
  • Soil and plant screening values
  • New human receptor profiles (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)

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Key Features of RISC5

 

  • RISC has an intuitive graphical interface; it was developed with teaching principles of risk assessment and fate and transport as a primary goal.
  • RISC allows for pathway, compound and receptor additivity both when calculating risk and in calculating clean-up levels.
  • All of the fate and transport models that start with a soil source can be used in the presence of phase-separated product (Raoult’s Law is considered for all soil source models).
  • There is a transient vadose zone leaching model in RISC than can also be used to predict volatile emissions.
  • The soil source models consider mass balance (that is, they can model depleting sources).
  • The groundwater models are transient (i.e. they can handle time varying input).
  • RISC includes several exposure pathways not considered in other risk assessment software (to date) such as dermal exposure and inhalation during indoor showering, irrigation pathways and surface water and sediment intake pathways (both for humans and ecological receptors).
  • RISC has a large internationally derived surface water criteria and sediment criteria database for comparing modeled results with these environmental criteria.
  • 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

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Overview of Features

 

RISC5 allows the user to:
  • Choose chemicals of concern from a standard library of 128 chemicals; users may also add or delete chemicals from the library and alter the physical, chemical, and toxicological properties of each;
  • Perform calculations for two different human exposure scenarios (with up to seventeen exposure pathways each) simultaneously (e.g. calculations for both residential and industrial scenarios can be performed at the same time);
  • Determine cumulative risks from two different exposure scenarios, as might be the case when the user wants to sum the risks for the scenario where a resident is exposed during both childhood and adulthood;
  • Estimate exposure point water and air (both indoor and outdoor) concentrations using predictive chemical fate and transport models;
  • Allow for additivity of pathways and compounds for either a forward calculation of risk or back calculation of cleanup levels;
  • Print or save tables, charts, and figures.

New features that were included in Version 4.0 of RISC5 included:
  • Estimate human health risk from “irrigation pathways” for groundwater used outdoors but not supplying indoor uses;
  • Estimate human health risk from ingestion of vegetables grown in contaminated soil or irrigated with contaminated groundwater;
  • Use surface water mixing models to estimate potential impacts to surface water and sediments from contaminated groundwater;
  • Compare modeled surface water and sediment criteria with regulatory standards from around the world;
  • Consider degradation in two new vapor models; and
  • Calculate clean-up levels in soil and groundwater using MCLs (maximum concentration levels) or user-supplied concentrations in groundwater or surface water as targets (as opposed to risk-based calculations).

New features in Version 5 of RISC include
  • Tables and charts of model results are displayed directly in Excel for easier printing and incorporation in risk assessment reports;
  • Expanded chemical database, including the references for all chemical property values;
  • Saved project file names may exceed 8 characters;
  • A particulate emission (dust emissions) model has been added;
  • An updated vegetable uptake model based on Trapp and Mathis ();
  • For volatilization to outdoor air from soil, the soil source term is allowed to deplete over time, if desired; and
  • Default receptor profiles may be added, or modified, by the user.
  • Screening level food web model for evaluating ecological risk

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Expanded Data Sets in RISC5

 

Surface Water Criteria
  • 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)

Sediment Criteria
  • 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))

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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RISC5 Exposure Pathways Include

 

  • Ingestion of soil
  • Dermal contact with soil
  • Ingestion of groundwater
  • Dermal contact with groundwater
  • Inhalation in the shower
  • Inhalation of outdoor air
  • Inhalation of indoor air
  • Ingestion of surface water
  • Dermal contact with surface water

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RISC5 Fate and Transport Models Include

 

  • Johnson and Ettinger indoor air model
  • Vadose zone model
  • Saturated zone model
  • Volatilization from groundwater to indoor and outdoor air
  • Outdoor box model

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RISC5 System Requirements

 

  • A minimum of 15MB of free hard disk space
  • Windows XP/Vista/Windows 7
  • A Pentium class chip
  • 1024 * 768 pixel monitor minimum
  • Excel 2003 or higher

RISC5 has been designed to run on an individual computer, that is, it can not be run over a network.

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Additional Features in RISC5

 

RISC5 has 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

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RISC5 & RBCA Tool Kit 
(Risk Assessment) 


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