City Offers Sanitary Sewer Backflow Prevention Device Reimbursement Program

Eligible Property Owners Reimbursed for 75% of Total Cost

The City of Naperville offers residents and businesses the opportunity to participate in its Sanitary Sewer Backflow Prevention Device Program where eligible property owners are reimbursed for 75% of the cost to install a prevention device of their choice.

The program is open to anyone living in the City of Naperville who has experienced a sanitary sewer backup caused by an intense rainfall event. The initiative allows for property owners to install the backflow prevention device of their choice, with the City reimbursing 75% of the cost. Since the program’s inception in 1981, over 400 customers have taken advantage of the program. 

As part of the program, property owners are required to obtain three written quotes in which the City will pre-authorize one of the quotes for work to be performed. The property owner is responsible for scheduling the work and paying the contractor for all associated installation work and restoration costs. Upon completion of the work, the property owner must submit proof of payment to the City before the City will reimburse 75% of the agreed quote. For more information about the program, visit or contact Katy Librizzi, program administrator, at (630) 305-5994 or

Backflow prevention devices under this program are to address sanitary sewer back-ups only, not stormwater or sump pump-related backups, where water has entered the basement through foundation cracks, window wells, doors or as a result of an overwhelmed or failed sump pump.

The Sanitary Sewer Backflow Prevention Device Program is an extension of the City’s ongoing efforts to reduce the frequency and severity of sanitary surcharges. The Water Utility currently has several programs using City crews, consultant engineers and contractors to locate and repair issues related to the City’s infrastructure. In 2019, the City budgeted over $4 million for sanitary sewer rehabilitations to reduce excessive stormwater from entering the sanitary sewer system. Rehabilitation work includes sanitary mainline lining, manhole lining, manhole replacement and service lateral lining and grouting.

For more information on the City of Naperville, visit To sign up for the City’s notification system Naper Notify and receive important information via a phone call, text message, email or smart phone app, visit

About Naperville: Located 28 miles west of Chicago, Naperville, Ill., is home to approximately 145,000 people. This vibrant, thriving city consistently ranks as a top community in the nation in which to live, raise children and retire. The city is home to acclaimed public and parochial schools, the best public library system in the country, an array of healthcare options and an exceptionally low crime rate. Naperville has ready access to a variety of public transportation, housing and employment options. The city’s diversified employer base features high technology firms, retailers and factories, as well as small and home-based businesses. Residents also enjoy world-class parks, diverse worship options, the opportunity to serve on several City boards and commissions, a thriving downtown shopping and dining area, a renowned outdoor history museum known as Naper Settlement and an active civic community. For more information, please visit our website at