Hours of Operation:

Monday - Friday

7:30am - 4:00pm

Main Office:
3230 N. Cole St
Lima, OH 45801

RightLineWelcome 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

Paper Billing Information

When a customer wishes to establish new service or request change in service information the customer will automatically receive a paper bill in the mail on a quarterly basis. Bills are mailed around the middle of the month in February, May, August and November with payment due on the first Friday of the following month. The department will only bill full quarter charges and one quarter in arrears. A prorated bill will be calculated for new home purchases with the bill settled at the closing transaction with the buyer being responsible for the next full quarterly bill after purchasing the home.

Payments may be made in person at the Treasurer’s office located at 301 N. Main St, Ste 203 Lima, OH 45801, Monday – Friday 8:30 a.m. – 4:30 p.m. Credit/Debit or E-Check payments are accepted either on our ‘Pay Bill Now” link or by calling 1-419-765-6401, option 3. There is a 2.5% convenience fee for Credit/Debit Card payments (minimum $2.00) charged by the vendor, not Allen County, or $1.00 convenience fee for E-Check payments.

All delinquent sewer charges are the responsibility of the new owner of the home. Research the property before you purchase the home. 



Can I pay with a credit card?

Yes, visit or call 1-419-765-6401, option 3.

If I don’t pay my sewer bill is there a penalty?

Our office charges a 10% penalty on any late payments.

If I owe for two quarters or more can i pay the most recent quarter before paying the others?

Your payment will apply to the oldest bill due.

If my tenant does not pay the sewer bill and delinquent charges were added, who is responsible for the payment?

The property owner is responsible for any unpaid charges for the sanitary sewer.


If I continue to not pay my sewer bill what will happen?

At the end of September each year our office certifies all unpaid sewer bills plus penalties, to the upcoming year’s property taxes for collection.

How long will the above sewer bill charges stay on my property taxes?

The delinquent sewer bills will be collected on the upcoming year’s property taxes only.

If my sewer bill is place on my taxes and I pay my taxes, will sewer charges show on my next year taxes?

As long as you stay current on your bills, no further sewer bills will be certified to your property taxes.

Moving/Extended Vacations

How is my sewer bill handled when I sell my home in the middle of quarter?

All charges should be pro-rated by your agent at the time of closing, to the new owner.

If I vacation through the winter and am not home using the sanitary sewer is there any way to turn the sewer off or not be charged for the usage?

The only way to discontinue sewer billing is if a home is torn down.