Approximately 5,000 new water wells are constructed and 2,700 abandoned wells are sealed in Illinois each year. A major consideration in constructing these wells is to prevent contamination from the ground surface or shallow ground water, sewage disposal systems and other hazardous sources, from entering the well. To ensure the safety of these water supplies, the division and local health departments review water well installation plans, issue permits for new well construction and inspect wells. The division licenses approximately 730 people who construct wells and/or install water well pumps. Staff consult with the public and local governments about private water supply issues and prepare publications concerning the use of surface water and groundwater supplies.

Water Well Contractor Search

Water Well Contractor Online Renewal

FACT SHEETS

A Safe Water Supply Depends on Location and Construction – Bored Wells
A Safe Water Supply Depends on Location and Construction – Drilled Wells
A Safe Water Supply Depends on Location and Construction – Driven Wells
Abandoned Wells - Hazards to Health and Safety
Alachlor and Atrazine in Groundwater
Arsenic in Groundwater
Commonly Found Substances in Drinking Water and Available Treatment - PDF
Cryptosporidiosis
Emergency Hauling, Storing and Disinfecting of Water Supplies
Giardiasis
Iron in Drinking Water
Nitrates in Drinking Water
Radium in Drinking Water
Vinyl Chloride in Groundwater
Well Sampling for Coliform and Nitrate

FORMS

Installation Report for Water Well Pumps - PDF
Application for Permit to Construct, Modify or Abandon a Water Well - Fillable PDF*
Water Well Construction Report - Fillable PDF*
Water Well Construction Report Instructions - Fillable PDF*
Water Well Sealing Form - Fillable PDF*
Closed Loop Wells

• Application for Licensed Water Well Contractor's Closed Loop Well Certification - Fillable PDF*
• Application for Permit to Construct, Modify or Seal a Closed Loop Well System - Fillable PDF*
• Application for Registration as a State Closed Loop Well Contractor - Fillable PDF*
• Examination Application for State Closed Loop Certification - Fillable PDF*

STUDY GUIDES

References Utilized in Examination for Licensed Water Well Contractors - PDF
References Utilized in Examination for Licensed Water Well Pump Installation Contractors - PDF
Study Manual for the Water Well and Pump Installation Contractors License Examinations - PDF

77 Ill. Adm. Code Part 915 The Illinois Water Well and Pump Installation Contractor's License Code | (Printer Friendly PDF)
77 Ill. Adm. Code Part 920 Illinois Water Well Construction Code | (Printer Friendly PDF)
77 Ill. Adm. Code Part 925 Illinois Water Well Pump Installation Code | (Printer Friendly PDF)

To order a hard copy of any or all of the codes, complete this order form and e-mail, mail or fax as instructed.

Backflow Preventers - PDF
Closed Loop Well Piping - PDF
Grouts - PDF
Hand Pumps - PDF
Pitless Well Adapters and Units - PDF
Water Well Caps - PDF

Arsenic in Private Wells
Closed Loop Wells
Dewatering Wells
Monitoring Wells

WATER WELL DATA BASES

Illinois Environmental Protection Agency
http://maps.epa.state.il.us/website/swap/intro.htm

Illinois State Water Survey
http://www.isws.illinois.edu/data/gwdb/

Illinois State Geological Survey
http://www.isgs.uiuc.edu/maps-data-pub/wwdb/launchims.shtml

OTHER GROUNDWATER AND WATER WELL INTERNET SITES

Illinois Environmental Protection Agency
     What You Need to Know About Private Drinking Water Wells
     List of Accredited Laboratories

Illinois State Geological Survey

Illinois State Water Survey