American Suburban Utilities, Inc. (ASU) provides sewage disposal service in Tippecanoe County.
Pending Rate Case
ASU has recently filed a rate case, pending as IURC Cause No. 46318.
The utility filed its petition on Oct. 31, 2025 and filed testimony on Dec. 5, 2025.
The OUCC is reviewing ASU's request and will file testimony on a future date to be determined.
Written consumer comments are invited for the case record.
All publicly filed documents in this case are available from the IURC's case file.
This page will be updated based on case developments.
- Utility Testimony (Initial Request)
ASU filed an amended petition on Dec. 5, 2025, along with the following testimony:
Previous Cases of Note
American Suburban Utilities, Inc. (ASU) provides sewage disposal service in Tippecanoe County.
- 2022/2023 Rate Case
A Jan. 18, 2023 IURC order will allow ASU to raise its monthly residential sewer rate from $59.08 to $65.57. However, ASU initially requested a $99.66 monthly rate, which it adjusted to $88.89 later in the case.
All publicly filed documents in the case (Cause No. 45649-U) are available on the Commission's website.
The OUCC recommended denial of ASU's request in the following testimony:
An IURC public field hearing was held on Mar. 30, 2022. The OUCC issued a Feb. 28, 2022 news release to invite public input and included comments from approximately 400 ASU customers with its testimonial filing.
- 2020/2021 Rate Case
ASU's previous rates were approved in a Sept. 22, 2021 IURC order, which reduced the utility's interim monthly residential rate of $64.82 and ordered more than $500,000 in customer refunds.
Key OUCC filings in the subdocket included:
- Bell Testimony (February 2021)
- Parks Testimony (February 2021)
- Stull Testimony (February 2021)
- Proposed order (May 2021)
- Reply brief (June 2021)
The subdocket's full case file is available on the IURC website.
- IURC Investigation
A Commission investigation is pending in Cause No. 46264.
- 2015/2016 Rate Case
The utility's previous base rates were approved in 2016. In the case, ASU requested a three-phase increase and sought to raise its monthly residential flat rate to $85.17. The OUCC - in its April 2016 proposed order - recommended limiting the eventual increase to $60.80.
For an overview of testimony the OUCC filed in January 2016, please see the agency's news release.
The OUCC issued an October 2015 news release to invite consumer comments. An IURC public field hearing was held in West Lafayette on Nov. 16, 2015.
To view the rate case file (Cause No. 44676) on the IURC website, including all testimony, exhibits, and proposed orders, click here.
- Financing Case
The utility's recent financing request was approved in IURC Cause No. 46017.
12-8-25
