Welcome to the Sanitary Engineering Department

The Allen County Sanitary Engineering Department is split into two divisions, the Wastewater Treatment Division (WWTD) and the Wastewater Collection Maintenance Division (WWCMD), with the main office of the Sanitary Engineer coordinating the day to day operations.

The WWTD is responsible for the maintenance and operations of all wastewater treatment plants and the operations of the sludge management program. The WWTD operates three major treatment plants located in Bath, Shawnee and American Townships and two smaller package treatment plants located in Auglaize and Richland Townships.

The WWCMD is responsible for the maintenance and operation of approximately 172 miles of gravity sewer lines, 48 miles of pressure sewer lines, 3665 manholes and 443 force main structures located within American, Auglaize, Bath, Jackson, Marion, Monroe, Perry, Richland, Shawnee and Sugar Creek Townships.

Contact Info:
Main Office: (419) 996-4670
Fax: (419) 229-3297
After-hours Emergency: (888) 229-9645
Sewer Billing: (419) 996-4683
Accounts Payable: (419) 996-4680
Sewer Maintenance: (419) 996-4670
American/Bath WWTP: (419) 225-8048
American #2 WWTP: (419) 996-4696
Shawnee #2 WWTP: (419) 999-3941
GovDeals Inquiries: (419) 996-4678

Projects

Go to: Hume | Shawnee | Shawnee Rd. & Hume Rd.

Hamlet of Hume Sewer Improvement Area

The project area is the unincorporated area located near the Hume Road and S.R. 501 (Wapak Road) intersection. This project is being initiated due to the following:

The Allen County Health Department has documented health concerns due to water pollution hazards.
Resident complaints of odors and water quality.

Project Updates

June 30, 2014: An informational meeting was held for the property owners in the project area.

November 1, 2021: The project was awarded a $217,500 Ohio Department of Development Water and Wastewater Infrastructure Program Grant to evaluate the cost of the system complete surveying and design.

May 28, 2025: The Ohio Environmental Protection Agency issued a Permit to Install.

June 12, 2025: An Informational meeting was for property owners in the project area.

Hume Informational Meeting

May 7, 2026: Affected property owners were mailed letters informing them of a project update meeting.

Project Update Meeting Notice

June 2, 2026: Project Update Meeting

Project Update Presentation

Non-Attendee Letter

Shawnee Treatment Plant Phase 2 Upgrade

The Shawnee II Publicly Owned Treatment Works (POTW), underwent significant upgrades during the Phase 1 improvements completed in late 2016. The Phase 2 improvements required as part of a consent decree with the State of Ohio, will increase the average daily flow rating of the POTW to 3.0 MGD and the peak hydraulic flow capacity to 12.60 MGD. The Phase 2 improvements will also eliminate overflows from the flow equalization basin. Construction began in April 2024 and will continue until early 2027 at a cost of approximately $23 million.

Project Updates

Construction of the new sludge digestion, storage and thickening facilities should be completed by late August 2025 at which time demolition will begin on the existing thickened sludge storage tank.