Todd Engineers

Groundwater - Water Resources - Hydrogeology - Environmental Engineering




Groundwater Protection

Helping to characterize and remediate existing contamination.  Protecting resources and preventing future problems.



  • Water recycling and wastewater impacts
  • Landfills, mines and industrial sites
  • Contaminant fate and transport modeling
  • Deep well injection
  • Seawater intrusion
  • Isotopic and forensic geochemistry
  • Salt and nitrate balances
  • Sensitivity and vulnerability studies
  • Emerging contaminants: perchlorate, NDMA, personal care products, pharmaceuticals

Fate and Transport Investigation of All Chemical Groups

  • Volatile and semi-volatile organic compounds
  • Perchlorate
  • TCE, PCE, vinyl chloride, etc.
  • 1,4-dioxane
  • PCBs
  • Pesticides
  • MTBE
  • Petroleum hydrocarbons
  • Nitrates
  • Metals: arsenic, chromium VI, etc.
  • TDS, chloride
  • Radioactivity
Landfill expansion activities at Azusa landfill.
Azusa, California.

 

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