Water Division

Diagram of home and plumbing pipes

The Water Facility is dedicated to providing its customers with a safe, high quality, and reliable water supply that meets or exceeds all federal and state drinking water requirements. Currently pumping approximately one billion gallons annually, our goal is to treat and distribute our product efficiently while maintaining and upgrading the system to meet future demands. We are also committed to providing professional and courteous customer service to our residents. In addition to water treatment and distribution, other responsibilities include but are not limited to:

  • The acceptance process of newly constructed water mains
  • Backflow protection program
  • Customer service
  • Maintenance of 5 Water Storage Tanks
  • Maintenance of nine remote facilities
  • Metering - reading, and maintaining
  • Pump and equipment maintenance and repair
  • Sample collection and analysis


The Village of Carpentersville water treatment system consists of aeration, filtration, ion exchange softening, chlorination and fluoridation. Four shallow wells with a combined capacity of 7,200 gallons per minute (gpm) provide Carpentersville with an adequate water source. Three wells pumping simultaneously deliver 5,000 gpm through a force draft aerator to remove or reduce undesirable gases and to begin the oxidation of soluble iron and manganese. Following aeration, the water flows into a 120,000 gallon detention tank where the oxidation process is completed. The water then passes through eight dual media gravity filters where the now insoluble iron and manganese substances are removed.

After filtration, the water is pumped through eight ion exchange softening units then to a 1,000,000 gallon storage tank. Four high service pumps with a combined capacity of 7,000 gpm operate on demand from the water level in a 120-foot standpipe located in the distribution system. Additional water storage includes a 750,000 gallon tower, 1,500,000 gallon tower and a 1,000,000 gallon ground water storage tank.

Piping in facilityDistribution

Distribution of water throughout the different pressure zones within the Village is accomplished by the use of two Booster Stations, one motor operated valve and eleven pressure reducing valve.

Included in the distribution system is approximately 120 linear miles of water main varying in size from 4 inches to 20 inches with over 1,400 distribution valves and 1,600 Fire Hydrants. From the water main water is brought to the home through water service ranges in size from 3/4 inch to 1-1/2 inches. These also include individual shut offs for service.


Maintenance for the distribution system is provided by the Carpentersville Underground Division. Homeowner responsibility for the maintenance of the system begins at the property line and continues to the indoor plumbing, except for the water meter. The entire municipal water supply is chlorinated and fluoridated before entering the distribution center. 

For the past 30 years, the Carpentersville Water Department has received commendations from the Illinois Department of Public Health, Office of Health Promotion, Division of Oral Health, and the Illinois Environmental Protection Agency Division of Public Water Supplies for monitoring and maintaining proper fluoride levels in the drinking water. Carpentersville is a leader in the state for its long history of fluoridation compliance.

Additional Responsibilities

Customer Service: Turn water on and off for repairs or moving, final reads for billing, low water pressure, meter leaks, buffalo box repairs and assist with high bills due to leaks.

Water Meters

Installation of new construction meters, meter sizing, meter reading of 10,400 plus within the Village, maintain current meter read system while upgrading to a fixed based read system and meter testing.

Manage Backflow Program

Monitor testing and enforce compliance that all devices are tested annually to ensure that no contaminants are introduced into the potable water system by backflow or back siphonage.

New Construction

Pressure testing of newly installed water main, chlorination with satisfactory bacteria samples before being placed into service.

Equipment Maintenance

Routine maintenance on all pumps and motors used for the treatment and distribution process. Replacement of valves as required. Annual servicing of eight iron removal filters and ion exchange softeners.

Buildings & Grounds

Includes main location and nine remote locations.