Illinois Well Water Testing and Treatment Contractors

Find qualified Well Water Testing and Treatment contractors in Illinois using our contractor lookup tool. Learn more about NGWA Contractor Certifications here.

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Lyons Well Drilling Co Inc

Contractors Company
PO Box 6
Stockton, IL 61085-0006
United States
(815) 947-3310

Marengo Well & Pump Company

Contractors Company
18801 Kishwaukee Valley Rd
Marengo, IL 60152-9208
(815) 568-1010

Cory Snelten

Contractor Individual
5 Hillview Dr
Lake Barrington, IL 60010-5993
United States
(847) 381-5430

A & C Snelten Inc

Contractors Company
5 Hillview Dr
Lake Barrington, IL 60010-5993
United States
(847) 381-5430

Prairie State Water Systems Inc

Contractors Company
48 W 557 Route 64
Maple Park, IL 60151
(630) 365-4242

Bloyer Well & Pump Inc

Contractors Company
14312 Fulmar Dr
South Beloit, IL 61080-2527
(815) 389-2028

Peter Snelten & Sons Inc

Contractors Company
25000 S Old Rand Rd
Wauconda, IL 60084
(847) 526-3500

Joseph H Huemann & Sons Inc

Contractors Company
5205 St Rt 31
Ringwood, IL 60072
815-385-0414

Bull Dog Drilling Inc

Contractors Company
411 Transpoint Dr
Dupo, IL 62239
(618) 286-3800

D & S Drilling Inc

Contractors Company
1626 Kropp Rd PO Box 44
Millstadt, IL 62260-1840
United States
(618) 476-1375

Scates Valley Inc

Contractors Company
550 County Road 1725 E
Carmi, IL 62821-6200
United States
(618) 968-2471

Beanland & Son Drilling LLC

Contractors Company
PO Box 28
Anna, IL 62906-0028
(618) 833-8812

Frequently Asked Questions

When should I have my well water tested?

The National Ground Water Association (NGWA) recommends well owners test their water at least annually for bacteria, nitrates, and any contaminants of local concern. More frequent testing should be considered if:

  • There is a change in the taste, odor, or appearance of the well water, or if a problem occurs such as a broken well cap, inundation by floodwaters, or a new contamination source
  • The well has a history of bacterial contamination
  • The septic system has recently malfunctioned
  • Family members or house guests have recurrent incidents of gastrointestinal illness
  • An infant is living in the home, or
  • To monitor the efficiency and performance of home water treatment equipment.

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What can impact groundwater quality?

Forty-seven percent of the United States depend on groundwater for their basic drinking water supply. Having a basic understanding about groundwater quality will help ensure that your well is supplying potable water for your household.

Along with human activities, water quality is affected by a combination of natural processes. Most relate to chemical compositions underground. However, other factors such as biological, physical, and radiological conditions can affect water quality as well.

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How is a well disinfected?

Properly constructed and maintained water well systems are designed to keep microorganisms such as bacteria, viruses, and protozoa from getting inside the well system and into the water. When a water test indicates the presence of microorganisms in a well, disinfection of the well system is recommended along with some level of inspection.

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Illinois Groundwater and Water Well Statistics

Few states can accurately or confidentially determine how many residential wells are in place. For each region, the American Housing Survey by the U.S. Census provides regional data.

Illinois is found in the Midwest, along with these other states: Ohio, Michigan, Indiana, Illinois, Wisconsin, Minnesota, North Dakota, South Dakota, Iowa, Nebraska, Kansas, and Missouri.

The last American Housing Survey Census indicates this region had 3,990,0002 households served by residential wells, with an average of 2.633 persons per household. The USGS estimates the population of self-supplied water supply users in Illinois to be 1,150,000, all of which are groundwater supplied.

  • 1,146 community water systems use groundwater for 3,188,000 people
  • 424 non-community, non-transient water systems use groundwater for 120,000 people
  • 3,031 non-community, transient water systems use groundwater for 323,000 people
  • 5,250 irrigation wells used serving 1,480 farms and 527,000 acres

Well Water Testing and Treatment Articles and Resources

Does My Water Well Need Treatment? By Gary L. Hix, R.G., CWD/PI Have you ever asked yourself: “Does my well water need treatment?” The question is not one you can answer if you have not had your water tested recently. You should ask yourself instead: “When was the last time I had my water tested?” If the answer to this question […]

PFAS and Private Well Owners: What You Need to Know NGWA published PFAS and Private Well Owners: What You Need to Know, a two-page fact sheet for home owners concerned about PFAS. Written in easy-to-understand language by groundwater professionals, it explains what PFAS are, how to test wells for PFAS, treatment options, and more.