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2024 Water Rate Adjustment

The Village of Tinley Park will be making several adjustments to its water rate and billing cycle in 2024 in order to compensate for increased costs of providing a water service to the community. Continue read or see the list of Frequently Asked Questions for more information.

The Village conducted a Water Rate Study in 2022. The last time a study was completed prior to this was in 2009, when the Village approved a five-year rate increase that lasted through 2014. Since then, the Village has not increased water rates except to pass through the increasing costs of purchasing water from the Oak Lawn Regional Water System, which in turn gets its water from the City of Chicago and Lake Michigan.

Since 2014, the consumer price index (CPI) has increased nearly 30%. With the rising cost of infrastructure, labor and operating costs, continued development in town increasing the demand on our water system, and aging infrastructure, the Village Board has approved a rate increase in line with a few other changes to the billing structure. While increasing rates is never favorable, this adjustment is required in order to maintain a high-functioning water system and remain financially responsible.

Water funds are supposed to operate as enterprise funds, or in other terms, be self-sufficient. However, the Village’s water funds haven’t operated as enterprise funds in quite some years. The Village has had to limit capital improvements to only the most necessary projects, defer additional maintenance costs, and transfer money from the operating funds into the water funds to keep them solvent. If not addressed now, this will only become a larger financial burden on the community as a whole down the road.

So what’s changing?

  • The Village is moving from a Two-Tier Rate system to a Four-Tier Rate system.
  • The Village is changing from a quarterly billing cycle to a bi-monthly billing cycle.
  • There will be a rate increase and small adjustments of meter base fees.
  • You will see a new bi-monthly Administrative Fee of $9.

The Water Rate study recommend options for a five-year plan. The spread of increases over five years was nearly 60%, and while that number ultimately reflects the true needs of the water system, the Village instead feels the combination of the aforementioned changes will help put our water funds back on track.

The new four-tier volume charges are as follows:

2024 Water Rate Graph

How to read your water bill
Understanding your water bill is an important part of monitoring your water usage. Below is a sample water bill and a line-by-line breakdown of what each section means.

  1.  how to read water bill - form onlyAccount Information: This includes billing information such as your account number, your service address, the billing service period and your due date.
  2. Meter Readings: This includes meter information such as your meter number and meter reads (in thousands of gallons). The “Use” column is determined by taking your current read and subtracting the previous read. In the provided example, the customer has used 8,000 gallons. The “Estimated” column notes whether your reading was estimated or not – “Y” for yes and “N” for no. Please note that readings are obtained two to three weeks before the bill is issued.
  3. Special Messages: This box contains important information that may be of concern to you.
  4. Current Charges: This area includes your individual charges for water, storm and sewer service, as well as the bi-monthly Administrative Fee.
  5. Usage: This handy consumption graph shows a 12-month graphical representation of your water consumption, including your average gallons per day.
  6. Amount Due: This includes your previous balance, payments, credits applied, total current charges and the total amount that is due.
  7. Sensus Info: Information on Sensus Center, a web-based, interactive application that allows residents to monitor their water usage in near-real time.
  8. Payment Coupon: This portion is to be returned with your payment.
Under the Four-Tier Rate system, if you receive a bill in January, you will be billed the odd months of the year – January, March, May, July, September and November. If you receive a bill in February, you will be billed the even months of the year – February, April, June, August, October and December.

Water Rate Comparison
Despite the rate and billing changes, Tinley Park will still have a below-average water rate in comparison to other towns in the region, as shown in the below graph.
Billing Amounts Comparables

Did you know?
It costs more than $17 million a year to simply maintain operations and ensure water delivery to all households and businesses. The Village has:

  • 1 elevated storage tank
  • 4 ground level reservoirs
  • 2 pumping stations
  • 270 miles of water main
  • Service of more than 23,000 meters

Sensus Center
Tinley Park residents can monitor their water usage in near-real time thanks to the Sensus Center, a web-based, interactive application that gives customers unprecedented access to their water meter accounts. Learn more at

Supplemental Documents

Frequently Asked Questions

Why did the Village decide to switch to a bi-monthly billing cycle?

Why did the Village create an Infrastructure Admin Fee?

What will the Infrastructure Admin Fee be used for?

What will the water rate increase be used for?

What will base rate increases be used for?

Why did the Village institute an Infrastructure Admin Fee instead of an additional rate increase?