Fond du Lac Water Utility Help Desk: Pay, Log In, Call or Change Service
Use this page like a Fond du Lac Waterworks counter: pay your quarterly water bill, log in to the online account portal, call the right office, understand why phone payments are not accepted, start or stop service, handle a late bill, request pool sewer credit, check meter rules, find the Water Business Office, and know what to do during a water main break or after-hours emergency.
Quick Answer: Fond du Lac Water Utility Phone, Login and Payment Options
Need |
Official route |
Prepare first |
Important detail |
|---|---|---|---|
Pay or log in online |
Account login, account number, bill, payment method. |
Login lets customers view account information, update contact information and make payments. |
|
Pay in person |
Government Center, 160 S. Macy St., Fond du Lac. |
Bill/account number and cash, check or credit/debit card. |
Standard hours listed: Monday-Friday 7:45 AM-4:30 PM and Fridays 7:45 AM-2:30 PM; 2026 summer hours are Mon-Thu 7:45 AM-4:30 PM and Fridays 7:45 AM-2:30 PM. |
Mail payment |
Payable to City of Fond du Lac, PO Box 830, Fond du Lac, WI 54936. |
Check and bill stub/account number. |
Mail is not best for due-date or tax-roll deadline situations. |
Drop-box payment |
Lot 19, Lot 22 or Government Center lobby drop boxes. |
Envelope, check/money order and account number. |
Deposits before 1:30 PM process the same business day. |
Phone payment |
Not available. |
Use online, in person, mail or drop box instead. |
Fond du Lac states phone payments are no longer accepted effective 1/1/2024. |
Billing/service account question |
Service address, account number, bill date, payment proof, request details. |
Waterworks Business Office is at 109 N. Macy Street. |
|
Water main break during office hours |
920-322-3680, option 9. |
Exact address/cross street, visible leak, safety risk, time started. |
Use business-office routing for main breaks during office hours. |
After-hours/weekend/holiday emergency |
920-906-5555, option 0. |
Exact address, issue, safety risk, whether water/sewer is affecting property. |
Use this for true emergency service after regular hours. |
Key phone warning: customers can call the Waterworks Business Office for service and billing help, but water bill phone payments are no longer accepted. Use the online portal, Government Center, mail or drop boxes for payment.
Pay or Log In to Fond du Lac Water Utility Online
Fond du Lac Waterworks uses an online account portal for bill viewing, account information, contact updates and payments. Always start from the City water page or a saved official bookmark before entering payment details.
Open the official portal
Go to myaccount.fdl.wi.gov or use the City’s “Pay Water Bill” link from the Water page.
Sign in before paying
The City says the portal lets customers view water account information, update contact information and make payments. Use your bill to confirm the correct account.
Set electronic notifications
The City says online notification settings can alert customers about bill ready for viewing, upcoming due date, payment received and past-due balance owed.
Save confirmation
Keep the payment confirmation, amount, date/time, payment method, account number and screenshot. If a deadline is close, call 920-322-3680 after payment.
Payment route |
Use when |
Need ready |
Important rule |
|---|---|---|---|
Online account portal |
You want to pay, view account info, update contact info or manage notifications. |
Login and current bill/account information. |
Best route for electronic payment and account monitoring. |
Government Center payment |
You want in-person payment with cash, check or card. |
Bill/account number and payment method. |
Use 160 S. Macy Street, not the 109 N. Macy Water Business Office, for the listed payment counter. |
Mail |
You have enough time before the due date. |
Check payable to City of Fond du Lac and account/bill stub. |
Mail to PO Box 830, Fond du Lac, WI 54936. |
Drop boxes |
You want a no-counter payment option. |
Check/money order and account information in envelope. |
Lot 19, Lot 22 and Government Center lobby; before 1:30 PM for same-business-day processing. |
Phone payment |
Do not use. |
Use online, in person, mail or drop box. |
Phone payments stopped effective January 1, 2024. |
UnitedHealthcare UCard |
Only after confirming benefit rules with UnitedHealthcare. |
UCard details and time for payment to arrive. |
City utility assistance page says UCard cannot be swiped/entered in person, phone payment system, or online InvoiceCloud/payment program, and payments may take up to two weeks. |
2026 Fond du Lac Water Bill Zones and Due Dates
Fond du Lac Waterworks bills quarterly and divides customers into three billing zones. The City’s 2026 schedule shows when bills are generated/mailed and when they are due.
Billing month / zone |
Utility bills mailed / generated |
Utility bills due |
What to do |
|---|---|---|---|
January — Zone 1 | 1/30/2026 | 2/19/2026 | Pay online, in person, mail or drop box before due date. |
February — Zone 2 | 2/27/2026 | 3/19/2026 | Set upcoming due-date notification in portal. |
March — Zone 3 | 3/30/2026 | 4/19/2026 | Confirm account status if the due date falls near a weekend/holiday. |
April — Zone 1 | 4/30/2026 | 5/20/2026 | Check leaks before outdoor use increases. |
May — Zone 2 | 5/29/2026 | 6/18/2026 | Use drop boxes before 1:30 PM for same-business-day processing. |
June — Zone 3 | 6/29/2026 | 7/19/2026 | The City also posted a Zone 3 June notice showing June 26 generation and July 16 due date; verify your actual bill. |
July — Zone 1 | 7/31/2026 | 8/20/2026 | High summer usage may affect both water and sewer charges. |
August — Zone 2 | 8/28/2026 | 9/17/2026 | Use electronic payment when mail timing is tight. |
September — Zone 3 | 9/30/2026 | 10/20/2026 | Watch for annual tax-roll notification timing in October if delinquent. |
October — Zone 1 | 10/30/2026 | 11/19/2026 | Confirm payments post before delinquency/tax-roll deadlines. |
November — Zone 2 | 11/25/2026 | 12/15/2026 | Holiday mail delays can affect mailed checks. |
December — Zone 3 | 12/30/2026 | 1/19/2027 | Save year-end confirmation for records. |
Electronic notice tip: Fond du Lac says late-payment reminder notices after the cycle bill due date are no longer mailed, while annual tax-roll notification for delinquent utility accounts is still mailed at the beginning of October to the property owner and/or account holder.
Start, Stop or Transfer Fond du Lac Water Service
Start service
Complete the Service Agreement Form and return it to the Waterworks Business Office by email, mail or drop-off.
Stop service
Complete the Stop Service Form. A $25 special read fee applies to closed-out accounts.
Timing
Forms are required within five business days of the service transfer date; allow up to seven business days for processing.
Task |
Official route |
Prepare |
Important note |
|---|---|---|---|
Open new water account |
Service Agreement Form, English or Spanish. |
Service address, owner/tenant details, transfer date, contact info. |
Return to fdlwater@fdl.wi.gov or 109 N. Macy St., Fond du Lac, WI 54935. |
Close water account |
Stop Service Form, English or Spanish. |
Account/service address, closing date, forwarding info, contact details. |
$25 special read fee applies to all closed-out accounts. |
Transfer due to move/sale/rental change |
Required Service Change Form. |
Buyer/seller/tenant/owner details and date transfer occurs. |
Required within five business days of date transfer occurs. |
Need account/bill copy for property manager |
Request Account Information / Consent to Disclose Utility Customer Information. |
Tenant consent, property address and account information. |
Property owners/management companies may need completed authorization before receiving tenant account copies. |
Schedule meter change, cross-connection re-inspection or service-line survey |
Use online scheduling or call business office. |
Address, account number, access details, preferred appointment time. |
Call 920-322-3680 or email fdlwater@fdl.wi.gov for service-call scheduling. |
Late Bills, Disconnection Rules and Reconnection Charges
20-day late rule
The tariff says a 1% monthly late payment charge is added to bills not paid within 20 days of issuance.
Notice and disconnection
The customer may receive overdue notice no sooner than 20 days after issue; if payment or satisfactory arrangement is not made within the next 10 days, service may be disconnected under PSC rules.
Reconnect charge
Reconnection charge is listed as $50 during normal business hours and $75 after normal business hours.
Situation |
Best action |
Ask this |
|---|---|---|
Bill is due soon |
Pay online, in person or drop box; avoid mail if timing is tight. |
“Will this payment post before the due date?” |
Bill is already late |
Call 920-322-3680 before assuming the account is safe. |
“Has a late charge or overdue notice been applied?” |
Received overdue/disconnect notice |
Call the business office and make payment or arrangement promptly. |
“What exact amount prevents disconnection, and what deadline applies?” |
Water already disconnected |
Ask for full balance, reconnection fee and whether after-hours reconnection applies. |
“Does the $50 or $75 reconnection charge apply?” |
Payment returned by bank |
Ask how returned payment affects account status. |
“Does the $35 payment-not-honored charge apply?” |
Missed a service appointment |
Reschedule and ask whether charge applies. |
“Is this the first missed appointment, and was it after normal business hours?” |
Rates, Tariffs and How Your Fond du Lac Water Bill Is Calculated
Fond du Lac Waterworks rates and service rules are regulated through Wisconsin Public Service Commission tariffs. Use the current tariff and the current bill before estimating a customer’s total, because meter size, service type, public fire protection, sewer charges and special services can change the total.
Unit size
Each billing unit is 100 cubic feet, equal to 748 gallons.
Basic charge
Fixed charge based on meter size.
Usage charge
Based on water passing through the meter.
PSC tariff
Tariffs set legal utility rates and service obligations.
Bill / tariff item |
Official detail shown |
What it means |
|---|---|---|
Basic Charge |
Fixed charge based on meter size. |
A small residential meter and a large commercial meter do not have the same base cost. |
Usage Charge |
Based on amount of water used. |
Leaks, irrigation, pool fill and running toilets can increase usage. |
Billing unit |
100 cubic feet = 748 gallons. |
Use this conversion when comparing gallons to the bill. |
General metered service charge, 5/8-inch or 3/4-inch meter |
Current tariff PDF shows $44.00 quarterly / $14.67 monthly. |
Common smaller-meter base charge in the PSC tariff. |
General water volume, first 5,000 cubic feet quarterly |
Current tariff PDF shows $4.74 per 100 cubic feet. |
First major water-volume block under general metered service. |
Public fire protection, 5/8-inch or 3/4-inch meter |
Current tariff PDF shows $19.20 quarterly / $6.40 monthly. |
Separate tariff charge for public fire-protection service. |
Returned payment |
$35 payment-not-honored charge. |
May apply when payment is not honored by financial institution. |
Special billing / real estate closing account charge |
$25 for special billing and $25 for written real-estate closing account status. |
Important for sellers, title companies, property managers and landlords. |
Reconnection |
$50 normal business hours; $75 after normal business hours. |
Ask which fee applies before requesting restoration. |
Rate-publishing note: the City’s Rates/Tariffs page links to the PSC tariff as the legal rate source. Before quoting a customer estimate, check the current tariff, the customer’s meter size, billing frequency and whether sewer, fire protection, pool credit or special charges apply.
Pool Fill Sewer Credit, High Bill and Meter Checks
Sewer credit
Sewer credits may be considered for excess water usage outside the building that did not enter the sanitary sewer system.
One per season
Credits are limited to one per season and can apply to pool fills, ice skating rinks and new lawn establishment if criteria are met.
Must be current
Customers must be current on water bills when submitting the sewer-credit request.
Issue / credit type |
What to document |
Important rule |
|---|---|---|
Swimming pool fill |
Date range, beginning meter read, ending meter read. |
Only one fill per season; secondary submittals during the same season are not processed. |
Ice skating rink |
Outdoor usage date range and meter readings. |
Usage must not enter sanitary sewer. |
New lawn establishment |
Watering dates, meter readings and reason for outdoor usage. |
City/Utility can deny requests not meeting criteria. |
High bill from leak |
Meter reading, repair date, plumber receipt, fixture/irrigation checks. |
Call business office before assuming credit applies. |
Finding water meter |
Most meters are in basements or crawl spaces; if no basement/crawl space, check utility closet or under kitchen sink. |
Meter must be accessible to Water Utility staff. |
Meter access problem |
Clear path around meter and avoid construction near/over/around it. |
Meter is property of Fond du Lac Waterworks. |
Main Break, Service Call, Meter Change or Emergency
After-hours emergency
Call 920-906-5555, option 0, after regular hours, weekends or holidays.
Service call
Call 920-322-3680 or email fdlwater@fdl.wi.gov to arrange a date and time.
Online scheduling
Meter change-out, cross-connection re-inspection and service-line survey appointments can be scheduled online.
Problem |
Call / action |
Say this |
Have ready |
|---|---|---|---|
Water main break during office hours |
920-322-3680, option 9. |
“I am reporting a water main break near [address/cross street].” |
Location, visible flow, safety hazard, time started. |
After-hours main break or emergency |
920-906-5555, option 0. |
“This is an after-hours water emergency at [address].” |
Address, problem type, whether property/street is affected. |
Meter change-out |
Use online scheduling or call 920-322-3680. |
“I need to schedule a water meter change-out.” |
Account/service address, access instructions, contact phone. |
Cross-connection re-inspection |
Use scheduling page or business office. |
“I need cross-connection re-inspection scheduling.” |
Property address, prior notice, availability. |
Water service line survey |
Use scheduling route or private-side material survey. |
“I need help completing the service-line material survey.” |
Meter access, service-line material if known, photos if requested. |
Hydrant meter or bulk water |
Use Hydrant Meter Rental or Bulk Water instructions. |
“I need temporary/bulk water for [purpose].” |
Project date, location, volume, contractor info, deposit/payment readiness. |
Private Lead Service Line Replacement and Financial Assistance
Why it matters
Fond du Lac explains that lead service lines must be identified and replaced under federal lead/copper rules and local ordinance.
Financial help
The City says assistance may be available as a grant for 50% of replacement cost, up to $2,000, with a loan option for the remainder.
Priority order
Priorities include City utility/street reconstruction projects, exceedance of action level and emergency repairs.
Lead service-line question |
Official guidance |
Customer action |
|---|---|---|
How do I know if my property is selected? |
Property owners are mailed a packet before upcoming construction with project and financial-assistance information. |
Watch mail and call Waterworks if your address is in a project area. |
Will water be shut off during replacement? |
The City FAQ says water will be shut off for a few hours on the day of work. |
Be available and clear a path near the water meter. |
Where does contractor need access? |
Basement, crawl space or utility closet where service line enters building. |
Remove boxes/furniture and make meter/service entry accessible. |
How much help is available? |
Financial-assistance page says grant may cover 50%, maximum $2,000, plus loan option for remainder. |
Review packet, financial tri-fold and program forms. |
Can I ask for inventory copy? |
City says customers may request a copy of the initial LCRR Service Line Materials Inventory by email. |
Email fdlwater@fdl.wi.gov and include service address. |
What if I want to self-identify material? |
City links to a private-side service material survey. |
Complete survey or schedule a service-line survey appointment. |
Water Quality, Toilet Rebate and Conservation
Annual report
The City posts annual drinking water quality reports, including 2025 English and Spanish reports.
Toilet rebate
Fond du Lac Water Utility offers up to $100 when replacing old 3.5+ GPF toilets with a 1.28 GPF high-efficiency toilet.
Rebate rules
Standard 1.6 GPF toilets do not qualify; single-family homes, condos and apartment buildings of four units or less may qualify.
Topic |
Official detail |
What to do |
|---|---|---|
Water quality report |
Annual reports page lists Water Testing Results by year, including 2025 English and Spanish. |
Download the latest report before quoting contaminant levels. |
Treatment process |
The Water Quality section includes a Treatment Process page. |
Use it for source/treatment explanation rather than guessing. |
Toilet rebate amount |
Up to $100 rebate for replacing old 3.5 GPF or higher toilet with 1.28 GPF model. |
Check WaterSense model, save receipt and submit rebate form. |
Toilet rebate payment |
Rebates may be issued as check or credit on next water bill. |
Select preference on application and include water service account number. |
Eligible properties |
Single-family homes, condominiums and apartment buildings of four units or fewer. |
Landlords should verify all terms before buying fixtures. |
Standard 1.6 GPF toilets |
Do not qualify for the rebate. |
Confirm product specs before purchase. |
Fond du Lac Water Utility Offices, Payment Locations and Map
Waterworks Business Office
Fond du Lac Waterworks
109 N. Macy Street
Fond du Lac, WI 54935
Phone: 920-322-3680
Email: fdlwater@fdl.wi.gov
In-person payments
Government Center
160 S. Macy Street
Fond du Lac, WI 54935
Pay by cash, check or credit/debit card.
Mail payments
Payable to: City of Fond du Lac
Mail: PO Box 830
Fond du Lac, WI 54936
Location / route |
Address / contact |
Use for |
|---|---|---|
Waterworks Business Office |
109 N. Macy Street, Fond du Lac, WI 54935; 920-322-3680. |
Service questions, start/stop forms, service calls, meter appointments, pool sewer credit, lead service line help. |
Government Center payments |
160 S. Macy Street, Fond du Lac, WI. |
Cash/check/card in-person water bill payments. |
Drop boxes |
Lot 19, Lot 22 and Government Center lobby. |
Check/money-order drop-off; before 1:30 PM for same-business-day processing. |
Mail |
City of Fond du Lac, PO Box 830, Fond du Lac, WI 54936. |
Regular mailed bill payment when timing allows. |
After-hours emergency |
920-906-5555, option 0. |
Main break, water emergency or urgent service issue outside regular hours. |
City main contact |
160 South Macy Street; 920-322-3400. |
General City Hall routing, not the fastest route for water-bill account help. |
Fond du Lac Water Utility FAQ
What is the Fond du Lac Water Utility phone number?
Call the Fond du Lac Waterworks Business Office at 920-322-3680 for billing, service account, service-call, start/stop service, pool sewer credit and meter appointment questions.
Can I pay my Fond du Lac water bill by phone?
No. Fond du Lac states that phone payments are no longer accepted effective January 1, 2024. Use the online portal, Government Center payment counter, mail or drop boxes instead.
Where do I pay my Fond du Lac water bill online?
Use the official online portal at myaccount.fdl.wi.gov. The portal lets customers view account information, update contact information and make payments.
Where do I pay in person?
Pay at the Government Center, 160 S. Macy Street, Fond du Lac. The City lists cash, check and credit/debit card payment options at this location.
Where do I mail a water bill payment?
Make checks payable to City of Fond du Lac and mail to PO Box 830, Fond du Lac, WI 54936. Include the bill stub or account information.
Where are the drop boxes?
The City lists drop boxes at Lot 19, Lot 22 and the Government Center lobby. Deposits before 1:30 PM are processed the same business day.
What is the emergency number for Fond du Lac Waterworks?
After regular business hours, weekends and holidays, call 920-906-5555 and choose option 0 for emergency service. During office hours, call 920-322-3680; the City page notes option 9 for main breaks during office hours.
How do I start or stop water service?
Complete the required Service Agreement Form to start service or Stop Service Form to close an account. Return forms to fdlwater@fdl.wi.gov or to Fond du Lac Waterworks Business Office, 109 N. Macy Street, Fond du Lac, WI 54935.
Is there a fee to close out a water account?
Yes. The City says a $25 special read fee applies to all closed-out accounts.
Can I get sewer credit for filling a pool?
Possibly. Fond du Lac says sewer credits may be considered for excess water used outside the building that did not enter the sanitary sewer system. Customers must be current, provide beginning and ending meter reads and date range, and only one fill per season is allowed.
30-Second Fond du Lac Water Utility Checklist
Pay/login: use myaccount.fdl.wi.gov; phone payments are not accepted.
Call: Waterworks Business Office 920-322-3680; email fdlwater@fdl.wi.gov.
Emergency: after hours/weekends/holidays call 920-906-5555, option 0; during office hours call 920-322-3680, option 9 for a main break.
Pay in person: Government Center, 160 S. Macy Street; mail checks to PO Box 830, Fond du Lac, WI 54936.
Start/stop service: return required forms within five business days of transfer; allow up to seven business days for processing; closed accounts have a $25 special read fee.

Editorial Team
WaterBillGuide.us
The content on WaterBillGuide.us is researched and prepared by our editorial team. Our writers and researchers review publicly available information from official utility websites and service portals to create clear, step-by-step informational guides.
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