Environmental Laboratory

Lab 1

National Ground Water Awareness Week (March 9-20)

In observance of National Ground Water Awareness Week, the Lake County Health Department is offering a reduced well water testing fee for homeowners who use well water as their primary source of drinking water. Between March 9  and March 20, 2020, the normal $18.00 fee for testing for bacteria and nitrates will be reduced to $12.00. Read more here

Water and Wastewater Quality

To obtain a water testing kit, please stop by our office or one of our water sample kit participants. The kit includes a sealed water sample bottle, laboratory form and instructions for taking the sample.

For further information regarding water testing, please contact us at 847-377-8020.  

About Us


We support the analytical needs of Population Health Services programs and the citizens of Lake County to promote health through the assurance of safe drinking water, proper treatment of wastewater and environmental protection. 

Who Can Receive Services


Lake County residents​ are eligible for services.

Analytical Tests for Water and Wastewater Quality:


  • Alkalinity
  • Ammonia
  • Arsenic
  • Biochemical Oxygen Demand (BOD)
  • Boron
  • Cadmium
  • Chemical Oxygen Demand (COD)
  • Chloride
  • Chromium
  • Copper
  • E coli
  • Fecal coliform bacteria
  • Fecal streptococcus bacteria
  • Fluoride
  • Hardness
  • Heterotrophic plate count
  • Iron
  • Lead (drinking water)
  • Manganese
  • Nitrate
  • Nitrite
  • Ortho-Phosphate
  • pH
  • Sulfate
  • Total Dissolved Solids
  • Total kjeldahl nitrogen (TKN)
  • Total Phosphorous
  • Total Solids
  • Total Suspended Solids
  • Volatile Solids
  • Zinc
  • Total coliform bacteria
Related Links
  • Food Service Guidelines During Boil Order or Interrupted Water Service
  • Lakes Management