TH&Co’s professionals integrate statistical methods into their ongoing groundwater basin and hazardous waste site studies as warranted.

  • Determination of statistics for spatial data
  • Identification of statistical outliers to establish appropriate datasets
  • Dataset distribution comparisons
  • Calculation of upper confidence limits (UCLs)
  • Calculation of upper tolerance limits (UTLs)
  • Calculation of background threshold values (BTVs)
  • Determination of minimum number of samples needed to establish defensible and cost-effective dataset statistics based on project-specific data quality objectives (DQOs)

Environmental Statistics Environmental Statistics