Tools & Utilities

• Chemical References:
  • Health and Safety Information on Household Products - What's under your kitchen sink, in your garage, in your bathroom, and on the shelves in your laundry room?
    Learn more about what's in these products, about potential health effects, and about safety and handling.
  • Periodic Table
  • CAS Numbers
  • Hazardous Subsances Fact Sheets
• Drilling References:
  
  • Call Before You Dig State Numbers
  • Utility Locate Chart
  • Color Code for Marking Underground Utility Lines (printable version )
    

    Red	Electric Power Lines, Cables, Conduit, and Lighting Cables
    Orange	Telecommunication, Alarm or Signal Lines, Cables, or Conduit
    Yellow	Natural Gas, Oil, Steam, Petroleum, or other gaseous or flammable material
    Green	Sewers and Drain Lines
    Blue	Drinking Water
    Violet	Reclaimed Water, Irrigation, and Slurry Lines
    Pink	Temporary Survey Markings, Unknown/Unidentified Facilities
    White	Proposed Excavation Limits or Route

• Sampling References:
  
  • Stormwater Sampling Instructions
  • U.S. EPA SW-846

• Calculations:
  • Property Acreage- sq ft to acre (Square Feet)/43,560 = Acres

  • square feet
    acres
    

• Soil Analytical Results
  • ppm = mg/Kg
  • ppb = µg/Kg
  • ppb = ppm * 1000
  • ppm = ppb / 1000
  • µg/Kg = mg/Kg * 1000
  • mg/Kg = µg/Kg / 1000

  • ppb or µg/Kg
    ppm or mg/Kg
    
    

• Groundwater Analytical Results
  • ppm = mg/L
  • ppb = µg/L
  • ppb = ppm * 1000
  • µg/L = mg/L * 1000
  • ppm = ppb / 1000
  • mg/L = µg/L / 1000

  • ppb or µg/L
    ppm or mg/L
    
    

• Air Analytical Results
  • µg/m³= (ppbv * MW) / 24.45 (Where MW is the Molecular Weight)
  • mg/m³ = (ppmv * MW) / 24.45
  • ppmv = ppbv / 1000
  • mg/m³ = µg/m³ / 1000
  • ppbv = ppmv * 1000
  • µg/m³ = mg/m³ * 1000
    

  • ppbv
    ppmv
    
    

  • µg/m³
    mg/m³
    
    

  • MW
    µg/m³
    ppbv
    

  • MW
    mg/m³
    ppmv