Pay, Log In, Call or Fix a Fond du Lac Water Account
Use this as a fast utility desk for Fond du Lac Waterworks: official bill-pay login, no-phone-payment warning, office address, payment locations, emergency numbers, quarterly billing zones, sewer credit, service start/stop forms, assistance, lead service-line help and map.
Fond du Lac Waterworks Action Board
Most searchers need one action: pay, log in, call, start/stop service, check a due date, report a water break or understand a high bill.
| Need | Use this official route | Prepare first | Important detail |
|---|---|---|---|
| Pay or log in online | Fond du Lac online water account portal | Account login details, bill, service address, payment method. | Use the portal to view account information, update contract/contact info and make payments. |
| Pay by phone | Not available. | Use online, in-person, mail or drop box instead. | Official page says phone payments are no longer accepted effective 1/1/2024. |
| Pay in person | Government Center, 160 S. Macy St., Fond du Lac. | Bill, account number, cash/check/card. | Government Center payment hours differ from Waterworks office hours. |
| Mail a check | Payable to City of Fond du Lac, PO Box 830, Fond du Lac, WI 54936. | Payment coupon/account number. | Mail is not ideal near due date or delinquency risk. |
| Drop off payment | Lot 19, Lot 22 or Government Center lobby. | Check/money order and account info. | Deposit before 1:30 PM for same-business-day processing. |
| Call customer service | 920-322-3680 or fdlwater@fdl.wi.gov | Account number, service address, bill copy, payment proof. | Use one exact issue: payment, billing zone, high bill, service change, meter appointment or emergency. |
| Report main break during office hours | 920-322-3680, option 9. | Address/cross street, water flow, time started, safety risk. | Use option 9 for main breaks or urgent water problems while office is open. |
| After-hours emergency | 920-906-5555, option 0. | Exact location, problem type, whether neighbors are affected. | Use after regular hours, weekends and holidays for water emergencies. |
Fast warning: late-payment reminders after the cycle due date are no longer mailed. Turn on electronic notifications inside the online portal for bill-ready, upcoming due date, payment received and past-due alerts.
Official Phone, Address, Hours and Local Utility Scope
Waterworks Business Office
Phone: 920-322-3680
Email: fdlwater@fdl.wi.gov
Use for billing, service appointments, account changes, sewer credit, meter questions and customer service.
Water office
109 N. Macy Street
Fond du Lac, WI 54935
Standard hours: Monday-Friday, 7:00 AM-3:30 PM.
2026 summer hours
May 18-Sept. 7, 2026:
Monday-Thursday, 7:00 AM-4:30 PM
Friday, 7:00 AM-11:00 AM
Closed official City holidays.
| Local detail | Official fact | Why searchers care |
|---|---|---|
| Utility name | Fond du Lac Waterworks. | Use this wording when searching the city site or PSC tariff records. |
| Ownership | Municipally owned and operated utility. | Rates and policies are public-utility regulated, not private-provider rules. |
| Regulator | Policies and rates are set by the Wisconsin Public Service Commission. | Use PSC tariffs for official rate/legal obligations. |
| Service scale | Over 200 miles of water main and almost 15,000 service connections. | Helps users understand why repairs, zones and meter appointments are scheduled. |
| Billing scale | About 16,000 customers divided into three zones. | Bill due dates depend on billing zone, not one citywide due date. |
Bill Pay and Login: What Works in 2026
Fond du Lac Waterworks gives four practical payment routes. Phone payment is not one of them.
Open the online water account portal
Use myaccount.fdl.wi.gov/user/login to log in, view account information, update contact/contract info and make a payment.
Match the account to your latest bill
Confirm service address, billing zone, bill date, due date, balance and any past-due amount before paying.
Choose payment route by urgency
Use online or same-day drop box processing for closer deadlines. Use mail only when there is enough time.
Turn on electronic notifications
Inside the portal, use notification settings for bill ready, upcoming due date, payment received and past-due balance owed.
Save payment proof
Save payment amount, date/time, confirmation, account, and screenshot or receipt in case the payment is not visible right away.
| Payment route | Official detail | Best for | Watch out for |
|---|---|---|---|
| Online portal | myaccount.fdl.wi.gov | Fastest normal route for login, bill view, contact updates and payment. | Do not use old bookmarks or unofficial pay sites. |
| In-person payment | Government Center, 160 S. Macy St., Fond du Lac. | Cash, check or credit/debit card payment. | Standard hours listed: Monday-Thursday 7:45 AM-4:30 PM, Friday 7:45 AM-2:30 PM. Summer 2026 hours listed May 31-Sept. 5, Monday-Thursday 7:45 AM-4:30 PM, Friday 7:45 AM-2:30 PM. |
| Mail check | Payable to City of Fond du Lac, PO Box 830, Fond du Lac, WI 54936. | Routine bills with time before due date. | Not recommended if due date is close. |
| Drop boxes | Lot 19, Lot 22, Government Center lobby. | After-hours drop-off or same-day processing before 1:30 PM. | Deposit before 1:30 PM to process the same business day. |
| Phone payment | No longer accepted effective 1/1/2024. | None. | Do not search for a pay-by-phone number; call only for help, not payment processing. |
2026 Quarterly Billing Zones and Due Dates
Fond du Lac Waterworks bills quarterly. Customers are divided into three zones, so the due date depends on your zone/month.
| 2026 month / zone | Utility bills mailed | Utility bills due | Quick note |
|---|---|---|---|
| January – Zone 1 | 1/30/2026 | 2/19/2026 | Zone 1 first quarter cycle. |
| February – Zone 2 | 2/27/2026 | 3/19/2026 | Zone 2 first quarter cycle. |
| March – Zone 3 | 3/30/2026 | 4/19/2026 | Zone 3 first quarter cycle. |
| April – Zone 1 | 4/30/2026 | 5/20/2026 | Zone 1 second cycle. |
| May – Zone 2 | 5/29/2026 | 6/18/2026 | Zone 2 second cycle. |
| June – Zone 3 | 6/26/2026 | 7/16/2026 | Official homepage notes a June 2026 Zone 3 change. |
| July – Zone 1 | 7/31/2026 | 8/20/2026 | Zone 1 third cycle. |
| August – Zone 2 | 8/28/2026 | 9/17/2026 | Zone 2 third cycle. |
| September – Zone 3 | 9/30/2026 | 10/20/2026 | Zone 3 third cycle. |
| October – Zone 1 | 10/30/2026 | 11/19/2026 | Zone 1 final 2026 cycle. |
| November – Zone 2 | 11/25/2026 | 12/15/2026 | Holiday timing may make this one easy to miss. |
| December – Zone 3 | 12/30/2026 | 1/19/2027 | Due date falls in 2027. |
Bill reminder tip: because late-payment reminder notices after the due date are no longer mailed, portal notifications matter more than before.
Read Your Fond du Lac Water Bill
Basic charge
A fixed charge based on meter size.
Use this when a bill increased even though usage did not change much.
Usage charge
Based on the amount of water used.
Water passing through the meter is measured in cubic feet.
100 cubic feet
Each billing unit is 100 cubic feet, equal to 748 gallons.
Multiply units by 748 to estimate gallons.
| Bill / meter question | Answer | Useful action |
|---|---|---|
| Why did the bill change? | Possible reasons include higher usage, basic charge, sewer charge, pool fill, leak, meter read or delinquent balance. | Compare units used, due date, past-due balance and payment history before calling. |
| Where is my meter? | Commonly in basement or crawl space; if not, check utility closet or under sink for sewer-credit reading guidance. | Take beginning/end readings for pool fill or outside-water credit request. |
| Can I block the meter? | The water meter serving the address is property of Fond du Lac Waterworks. | Do not build near, over or around the meter in a way that limits staff access. |
| Meter appointment letter received? | Meter exchange, water material inventory and other visits can be scheduled in two-hour blocks. | Use the official schedule page or call 920-322-3680. |
| Need curb-stop located? | The schedule page lets users request locate/verify water shut-off valve service. | Requests require minimum 24-48 hour notice due to staff availability. |
Start, Stop or Change Water Service
Start service
- Complete the Service Agreement Form.
- Spanish form is available.
- Email completed form to fdlwater@fdl.wi.gov.
- Or mail/drop off at 109 N. Macy St., Fond du Lac, WI 54935.
Stop service
- Complete the Stop Service Form.
- Spanish stop-service form is available.
- $25 special read fee applies to all closed-out accounts.
- Return by email, mail or drop-off.
Timing
- Forms are required within five business days of service transfer.
- Utility may take up to seven business days to process changes.
- Use latest bill/service address.
- Ask about final bill and forwarding address.
Main Break, No Water or Emergency Service
Office-hours main break
Call: 920-322-3680, option 9.
Use during office hours for main break or urgent water problem.
Scheduled outages
Check the official Water page for planned repairs, affected streets and service-restoration notes.
Outages may extend due to unforeseen circumstances.
| Issue | What to say | Have ready |
|---|---|---|
| Main break / street leak | “Water is flowing or bubbling at [address/cross street].” | Nearest address, cross street, direction of flow, pavement damage, time started. |
| No water / low pressure | “My property at [address] has no water/low pressure; neighbors [are/are not] affected.” | Address, start time, all taps or one tap, nearby repair notice. |
| Planned repair door hanger | “I received a door hanger for [street/date]. Is my address affected?” | Door-hanger details, address, work time, medical/business water needs. |
| Meter/service appointment issue | “I need to reschedule a water meter/material inventory appointment.” | Letter, appointment date, available two-hour blocks, contact number. |
Sewer Credit for Pool Fill, Ice Rink or New Lawn
Fond du Lac allows sewer-credit consideration for water used outside the building that did not enter the sanitary sewer system.
May qualify
- Swimming pool fill.
- Ice skating rink.
- New lawn establishment.
- Water used outside the building.
- Water did not enter sanitary sewer system.
- Customer is current on water bills.
Required details
- Date range of continuous fill/use.
- Beginning water meter reading.
- Ending water meter reading.
- Credit must be greater than $5 to process.
- Limit one credit per season.
- Secondary submissions in same season are not processed.
Meter-reading tip: water meters are usually in basements or crawl spaces. If there is no basement/crawl space, check a utility closet or under a kitchen sink.
Rebates, Lead Service Line and Utility Assistance
Toilet rebate
- Up to $100 rebate.
- New toilet must be 1.28 gallons per flush.
- Replacing toilet flushing at 3.5 gpf or higher.
- 1.6 gpf toilets do not qualify.
- One rebate, for one toilet, per household/apartment unit.
- Rebate may be check or credit to next water bill.
Private lead service line
- EPA Lead and Copper Rule Improvements require identifying/replacing lead pipes.
- City says owners may be required to replace private-side lead service line.
- Current city assistance: up to $2,000 or 50% of replacement cost.
- Priority includes reconstruction streets, emergency repair and private lead where public side is already replaced.
- Owners receive a packet if selected.
- Loan option listed at 2.5% interest through property tax statement.
Utility assistance
- St. Vincent de Paul Fond du Lac County: 920-922-3650.
- Fond du Lac Salvation Army: 920-923-8220.
- Consent to disclose utility customer information may be required before account details are released to a third party.
- UCard payments can take several business days and up to two weeks.
- UCard cannot be swiped/entered in-person at Government Center or used through the online payment program.
Rates, Tariffs and Water Quality Reports
Rates / tariffs
Fond du Lac’s tariff page explains that utility tariffs are filed with the Wisconsin Public Service Commission and have the force/effect of contracts.
Use the PSC tariff link for the current legal rate schedule.
Water quality
The City posts annual water quality reports, including 2025 English and Spanish report links.
Use the annual report for water-testing results and compliance details.
Treatment process
The City’s water-quality section links to annual reports and treatment-process information.
Use it for source/treatment questions rather than billing questions.
| User question | Best official route | Why |
|---|---|---|
| What water rate applies? | Rates / Tariffs | PSC tariff is the controlling rate source. |
| What does 100 cubic feet mean? | About My Bill | Explains basic charge, usage charge and 748-gallon unit conversion. |
| Is the water safe? | Annual Water Quality Reports | Official testing results are posted by year. |
| Who regulates service rules? | Wisconsin PSC + Chapter 185 administrative standards. | Fond du Lac Waterworks says service is furnished under PSC standards and tariff rules. |
Schedule Meter, Cross-Connection or Curb-Stop Appointment
Appointment types
- Water meter exchange.
- Water material inventory.
- Cross-connection re-inspection.
- Locate and verify curb-stop / water shut-off valve.
- Service-line survey.
Appointment blocks
- Standard: 7:30-9:30 AM, 10 AM-Noon, 12:30-2:30 PM.
- Summer Mon-Thu: 7-9 AM, 9-11 AM, Noon-2 PM, 2-4 PM.
- Summer Friday: 7-9 AM, 9-11 AM.
- Curb-stop requests require 24-48 hours notice.
Fond du Lac Water Utility Map and Payment Locations
Use this map for the Waterworks Business Office at 109 N. Macy Street. In-person bill payment is listed at Government Center, 160 S. Macy Street.
| Location | Address | Use for |
|---|---|---|
| Fond du Lac Waterworks Business Office | 109 N. Macy Street, Fond du Lac, WI 54935 | Water customer service, forms, email/mail/drop-off service changes, appointments, billing questions. |
| Government Center | 160 S. Macy Street, Fond du Lac, WI | In-person payment by cash, check or credit/debit card. |
| Mail payment | PO Box 830, Fond du Lac, WI 54936 | Mail check payable to City of Fond du Lac. |
| Payment drop boxes | Lot 19, Lot 22 and Government Center lobby | Drop-off payment; deposit before 1:30 PM for same-business-day processing. |
| Wastewater office | 700 Doty Street, Fond du Lac, WI 54935 | Wastewater treatment plant questions, not water-bill payment. |
Fond du Lac Water Utility FAQ
What is the Fond du Lac Waterworks phone number?
Call the Waterworks Business Office at 920-322-3680.
What is the Fond du Lac Waterworks address?
The Waterworks Business Office is at 109 N. Macy Street, Fond du Lac, WI 54935.
How do I pay my Fond du Lac water bill online?
Use the official portal at myaccount.fdl.wi.gov/user/login to view account information, update contact/contract details and make payments.
Can I pay my Fond du Lac water bill by phone?
No. The official Water page says phone payments are no longer accepted effective January 1, 2024.
Where can I pay in person?
The City lists in-person payment at Government Center, 160 S. Macy Street, Fond du Lac, with cash, check and credit/debit card accepted.
Where do I mail a water bill payment?
Mail checks payable to City of Fond du Lac to PO Box 830, Fond du Lac, WI 54936.
Where are Fond du Lac water payment drop boxes?
The City lists drop boxes at Lot 19, Lot 22 and the Government Center lobby. Deposit before 1:30 PM for same-business-day processing.
What is the after-hours water emergency number?
Call 920-906-5555 and choose option 0 after regular business hours, on weekends or holidays.
How do I report a main break during office hours?
Call 920-322-3680 and choose option 9 during office hours.
How often are Fond du Lac water bills sent?
Fond du Lac Waterworks bills quarterly and divides customers into three billing zones.
How much water is one billing unit?
One unit is 100 cubic feet, equal to 748 gallons of water.
How do I start or stop water service?
Complete the start or stop service form and return it to fdlwater@fdl.wi.gov or to 109 N. Macy Street. Forms are required within five business days of service transfer.
Is there a fee to close an account?
Yes. The customer-service page lists a $25 special read fee for all closed-out accounts.
Can I get sewer credit for filling a pool?
Possibly. The water must be used outside and not enter the sanitary sewer. You need beginning and ending meter readings, must be current on your bill, and the credit is limited to one per season.
Does Fond du Lac offer a toilet rebate?
Yes. Fond du Lac Waterworks lists up to a $100 rebate for replacing a 3.5 gpf or higher toilet with a 1.28 gpf toilet. 1.6 gpf toilets do not qualify.
Is this the official City of Fond du Lac website?
No. This is an informational guide. Always confirm live balance, payment status, emergency status, forms, rates and service requirements with official City of Fond du Lac Waterworks sources.
30-Second Fond du Lac Water Checklist
Pay/login: use myaccount.fdl.wi.gov/user/login. Phone payments are no longer accepted.
Call: customer service 920-322-3680; main break during office hours option 9; after-hours emergency 920-906-5555 option 0.
In person: pay at Government Center, 160 S. Macy Street. Water office is 109 N. Macy Street.
Mail/drop: mail to PO Box 830 or use Lot 19, Lot 22 or Government Center lobby drop boxes before 1:30 PM for same-day processing.
Moving/high bill: use start/stop forms, expect $25 special read on closed accounts, check 100 cubic feet = 748 gallons, and request sewer credit only when outside water did not enter sewer.