McHenry County Department of Health - Environmental Health
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Laboratory Services

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McHenry County Department of Health does not accept routine private water samples from homeowners for analysis.  The Department does recommend that private water well owners have their water tested at least annually for coliform bacteria and nitrates.  There are several water laboratories located in and around McHenry County that can conduct this analysis.  A list of these laboratories is located below.  Please contact the laboratory prior to collecting a sample to ensure that you are utilizing the correct sample container and sampling procedure.

Department staff is available to answer any questions regarding water wells, water quality, and water sampling.  Anyone who has a concern regarding his/her water well or the safety of the water should contact the Department for assistance.  Department staff may inspect and evaluate the water well and/or collect water samples for analysis.

The Department does provide testing of water samples for coliform bacteria and nitrates from non-community public water supplies and newly constructed water wells within McHenry County.  A list of current laboratory services and fees is listed below.

The contact number for the Division of Environmental Health is 815-334-4585.

Chain of Custody Form
Educational Materials
McHenry County Flood Information
List of Certified Water Testing Labs [PDF]

 Laboratory Services and Fees

Drinking Water -- Bacterial Analysis (new/modified wells, non-Community wells, well evaluations)

Standard Test (P/A Coliform / E. Coli and Nitrates)  -------------------------------------------------------  $28.00
Resample / Community / Non-Community (No Nitrates)  -----------------------------------------------  $18.00

Other Water Analysis (new/modified wells, non-community wells, well evaluations)

Nitrate Screen  -----------------------------------------------------------------------------------------------------------------  $10.00
Nitrate Quantitative Screen (pack and ship to private lab)  ---------------------------------------------  $15.00
Nitrite Screen  ------------------------------------------------------------------------------------------------------------------  $10.00
Nitrite Quantitative Screen (pack and ship to private lab)  ----------------------------------------------  $15.00
Residual Chlorine  ------------------------------------------------------------------------------------------------------------  $5.00

Public Beaches

Pick-Up and Analysis (Season)  ---------------------------------------------------------------------------------------  $650.00
Routine Beach Inspection (if not participating in pick-up / analysis program)  ---------------  $100.00
Follow-Up Beach Inspections (if not participating in pick-up / analysis program)  ----------  $50.00

Miscellaneous Laboratory Fees

Water Sample Pick-Up Charge (non-community surveys)  -----------------------------------------------  $60.00






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