Environmental Health Division Laboratory Safeguards Wells and Septic Systems

Environmental Health Division Laboratory Safeguards Wells and Septic Systems

Testing Water Quality Protects Public Health

The Environmental Laboratory safeguards the quality of private wells and septic systems. Testing water quality is crucial to maintaining public health in Will County.

We are here to help you find answers to your water quality questions. We want you to know about the quality of your water so you can make informed decisions about its impact on you and the environment in which we live. Why do we test water? A large number of human diseases, particularly those of the gastrointestinal tract are spread through contaminated water.

The EH Laboratory supports the work of the division by testing potable water for bacteria, hardness, nitrates and fluoride. The EH Laboratory is certified by the Illinois Department of Public Health and NELAC for drinking water analysis.

All samples must be brought in on ice in one of our sterile bottles which can be picked up at any health department location. Samples may be placed in a sandwich bag or container with ice cubes. Please alert staff if you have a hydrogen peroxide system or a chlorinator when picking up sterile bottles. All water from private wells should be analyzed for bacteria at least once a year.

If laboratory analysis of your well water indicates that it is unsatisfactory for drinking or cooking it will need to be disinfected. A useful description of the procedures to be followed in the disinfection of your well is contained in our Well Chlorination Instructions. This document can be downloaded and viewed below.

Testing Fees   
Routine Bacterial Screens 
$20.00
Bacterial Screen with Count  
$25.00
Chlorine Check $  5.00
Nitrate Analysis $18.00
Fluoride Analysis $24.00
Hardness Analysis $18.00

Nitrite Analysis                     $25.00 which includes process and handling fees




 

Environmental Health Laboratory Location

Laboratory Location

Environmental Health Laboratory
501 Ella Avenue
Joliet, IL 60433
(815)727-8517

Environmental Health Laboratory Hours

Schedule for Dropping off Samples

Laboratory Hours: 

Monday-Friday:  8:30 am to 4:00 pm
(815)-727-8517

Fridays and the day before a holiday, samples are accepted until noon. Branch hours may differ.  

Contact individual branches for hours of operation.

Testing Water for Coliforms

Screening for Total Coliform and E. coli as an Indicator of Water Safety

Why should my water be tested for Coliforms and E.coli? Most Coliforms are not harmful but serve as indicators of the general microbial quality of water.

Testing for the Presence of Nitrate

High levels of Nitrate in Drinking Water can be Dangerous to Health

Nitrate is naturally found in many types of food. However, high levels of nitrate in drinking water can make people sick. Exposure to excessive concentrations of nitrate can cause blue baby syndrome as a result of asphyxiation since the blood loses the ability to transport oxygen. 

Hardness Testing

Hard Water forms Deposits that Clog Plumbing

Excessive hard water forms deposits that clog plumbing and requires more soap and detergents for cleaning and laundering clothing.

Fluoride Testing

Proper Amounts of Fluoride Helps Prevent Tooth Decay

Fluoride exists naturally in water sources and is derived from the element fluorine. It is important in the prevention of tooth decay. If you use a well, fluoride levels should be checked by a laboratory. The optimal level of fluoride in the water supply are 0.9-1.2 ppm (parts per million).   

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Environmental Health News

Illinois Food Handling Regulation Enforcement Act

The Illinois Food Handling Regulation Enforcement Act (410 ILCS 625), amended by SB1495, passed into law on August 27, 2013, changes the existing training and certification requirements for food safety managers, as well as establishes food handler training requirements. 

 

SIX MORE WNV-POSITIVE MOSQUITO SAMPLES

SIX MORE WNV-POSITIVE MOSQUITO SAMPLES

Mid-September Heat Keeps Mosquito Season Alive and Well

The Will County Health Department operates a total of 12 mosquito traps.
FIRST ILLINOIS HUMAN WNV DEATH OF YEAR IN KANKAKEE COUNTY

FIRST ILLINOIS HUMAN WNV DEATH OF YEAR IN KANKAKEE COUNTY

State Human West Nile Virus Cases and Deaths Way Down this Year

A Kankakee County resident who tested positive for West Nile virus died earlier this month.
AS MOSQUITO SEASON WINDS DOWN, SIX MORE WNV-POSITIVE SAMPLES FOUND

AS MOSQUITO SEASON WINDS DOWN, SIX MORE WNV-POSITIVE SAMPLES FOUND

Health Department Numbers: 41 of 190 Batches Tested were Positive for WNV

So far in 2017, the Health Department has tested 190 mosquito samples, with 41 of them showing positive signs of West Nile Virus
NATIONAL FOOD SAFETY EDUCATION MONTH: FOCUSING ON EATING OUT AND IN

NATIONAL FOOD SAFETY EDUCATION MONTH: FOCUSING ON EATING OUT AND IN

Teaching Your Children Well From the Beginning, Especially on Cleanliness

Education about keeping food safe and preparing it safely applies to the restaurants where we eat as well as the homes where we live.
MOSQUITO SEASON CONTINUES: HEALTH DEPT FINDS TEN MORE POSITIVE WNV BATCHES

MOSQUITO SEASON CONTINUES: HEALTH DEPT FINDS TEN MORE POSITIVE WNV BATCHES

Health Department Has Now Tested 172 Mosquito Batches, 35 Positive for West Nile Virus

Positive samples from municipalities brings Will County grand total to 54.
WEST NILE NUMBERS: 150 MOSQUITO BATCHES TESTED, 25 POSITIVE FOR WNV

WEST NILE NUMBERS: 150 MOSQUITO BATCHES TESTED, 25 POSITIVE FOR WNV

Additional Positive Samples Recently Reported by Will Co Health Environmental

Eight recent additional mosquito batches tested positive for West Nile Virus.
MOSQUITO NUMBERS: 131 BATCHES TESTED, 17 POSITIVE FOR WNV

MOSQUITO NUMBERS: 131 BATCHES TESTED, 17 POSITIVE FOR WNV

Latest Positive Samples Include from Joliet, Frankfort, Lockport

Seventeen positive samples out of the 131 that have been collected this mosquito season.
LATEST POSITIVE WEST NILE MOSQUITO TESTS INCLUDE FIRST ONE FROM SHOREWOOD

LATEST POSITIVE WEST NILE MOSQUITO TESTS INCLUDE FIRST ONE FROM SHOREWOOD

Other Positive Batches from Frankfort, Mokena, New Lenox, Bolingbrook

Five additional collected mosquito samples that tested positive for West Nile Virus, all of which were collected in late July.
WEST NILE UPDATE: TWO MORE MOSQUITO BATCHES TEST POSITIVE

WEST NILE UPDATE: TWO MORE MOSQUITO BATCHES TEST POSITIVE

Total of Seven Positive Batches Now Collected from 12 Different Health Department Traps

The two samples were collected on July 21st in Joliet and July 24th in Crete.
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