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Exposure Assessment Models

3MRA Release Notes

Version: 1.0

Corrections & Improvements to Prior Versions
  • Aerated tank and Surface impoundment modules
    • Two sediment compartments (unconsolidated and consolidated) to better account for sediment compaction and chemical stratification
    • BOD consumption and biomass generation temperature-dependent
  • Surface impoundment module
    • Added time dependent solution for batch and plug-flow units to account for varying aeration and residence time
  • Human risk module
    • Replaced module with computationally more efficient version
  • Modified software to function with different operating systems (MS-Windows 9x/NT/2000)
  • Extensive system-wide testing and quality controls
    • Internal testing
    • Independent testing
  • Completed peer review of modules

Version: 0.98r Beta

Corrections & Improvements to Prior Versions
  • Modified ELP2 processor (file ELP2.EXE) to correct error when aggregating risks across pathways.

Version: 0.98

Corrections & Improvements to Prior Versions
  • Reporting of additive risk and additive hazard quotient pathways.

Version: 0.95

Corrections & Improvements to Prior Versions
  • Changed file GRF/ER.DIC to add labels to Ecological Risk output
  • Changed program executable EcoRisk5.exe to a version that reports labels
  • Changed program executable Elpl1.exe to a version that reads additional labels
  • Changed file HWIRCP.DLL to report ChemFractNeutral
  • Changed program executable Vadose.exe to stop use of aerobic biodegradation rates
  • Changed program executable ExamsIO.exe for file creation for EXAMS
  • Changed program executable Aquifer1.exe to implement a lowbound on reporting
  • Changed data base betav25r.mdb (note name difference, was betav24.mdb):
    • AquDoFract in the Aquifer data group located in the National data table was set to true in the logical value column
    • AquDoHetero in the Aquifer data group located in the National data table was set to true in the logical value column
  • Included link to full model system documentation world wide web (WWW) site

Version: 0.90

Corrections & Improvements to Prior Versions
  • First release through CEAM: Wednesday, 27 October 1999.