Fairfield Water Utilities 2026: Bill Pay, Login & Phone

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Fairfield CA Municipal Utilities 2026 • MyFMU • bill pay • phone • kiosk • leak help

Fairfield Water Help Desk: Pay with MyFMU, Call Customer Service, Avoid Shutoff or Fix a High Bill

Use this guide as a practical Fairfield Municipal Utilities desk. Pay through MyFMU by SilverBlaze, use Pay-by-Phone, make cash payments with a printed barcode, use the JACK kiosk outside City Hall, mail or drop off a check, understand delinquent and shutoff charges, request paperless billing and autopay, check 2026 rate changes, handle leak-adjustment questions, apply for senior/disabled refund help, and contact the right water-quality or billing office.

Pay / MyFMU Login Call 707-428-7346 Pay Phone 866-207-6045 Map & Office

Start Here: Choose the Exact Fairfield Utility Task

This page is for Fairfield, California water and sewer billing through Fairfield Municipal Utilities / City of Fairfield Finance. If your bill is from Fairfield, Ohio; Fairfield County Utilities; Fairfield Municipal Authority in Pennsylvania; or a private apartment billing company, use that provider instead.

Billing Help707-428-7346
Phone Pay866-207-6045
City Hall1000 Webster St.
Water Quality707-437-5390
Need
Best official route
Prepare first
Do not miss
Pay online or log in
MyFMU by SilverBlaze.
Fairfield water account number, email, payment method, service address.
Use MyFMU for 24/7 access, balance, payment, usage monitoring, bill comparison and account tools.
Set up online account
MyFMU information page.
Existing utility service and account number from first bill.
The City says once service is established and you receive your account number, you can set up online account, auto pay and paperless billing.
Pay by phone
866-207-6045.
Payment method and account number.
Keep confirmation number and call Customer Service if payment is close to delinquent or shutoff date.
Cash payment
Fairfield 7-Eleven, CVS, or City Hall JACK kiosk with printed barcode.
Physical bill with printed barcode.
7-Eleven/CVS add a convenience fee; City Hall kiosk cash payment has no convenience fee listed by the City.
Check payment by mail
City of Fairfield, 1000 Webster Street, Fairfield, CA 94533.
Check and payment stub.
Mailed payment is not instant; avoid mail when shutoff notice is close.
Check drop box
Blue water-payment drop box in Webster Street parking lot in front of Police building.
Check or money order with payment stub/account number.
Payments in drop box before 7 AM post same business day. Do not place cash in the drop box.
Pay at City Hall kiosk
JACK payment kiosk outside City Hall, open 24/7.
Bill/account number and payment method.
Kiosk payments post immediately to account; credit card and cash payments are supported.
Past-due or shutoff notice
Call Customer Service at 707-428-7346.
Account number, notice date, payment proof, amount available to pay.
Past-due balance gets 10% delinquent fee; additional processing and shutoff fees may follow.
High bill or possible leak
Leak Adjustment page and Customer Service.
Meter read, repair proof, photos, plumber invoice, usage comparison.
The online form may use a captcha; if it does not load, call Customer Service.
Water quality question
Water Division: 707-437-5390.
Address, tap affected, color, odor, pressure, start time, hot/cold water details.
Messages after hours/weekends are handled next business day.

Provider warning: “Fairfield Water Utilities” can mean several cities or agencies. This article is for City of Fairfield, California / Fairfield Municipal Utilities. Check the bill logo before using MyFMU, 707-428-7346 or the City Hall kiosk.

Official Phone, Office, Hours and Department Routing

🏢

Billing / Customer Service

Finance Department / Customer Service
City of Fairfield
1000 Webster Street
Fairfield, CA 94533

Billing phone: 707-428-7346

💧

Water Quality

Water quality phone: 707-437-5390

Water Division hours: Monday-Friday, 6:00 AM-3:30 PM.

Messages after hours or weekends are attended next business day.

🧾

Pay by Phone

Phone payment: 866-207-6045

Have account number and payment method ready.

Save confirmation number if payment is near delinquent or shutoff timing.

Question type
Correct route
Why this matters
Bill balance, account setup, payment posting, delinquent notice
707-428-7346.
Customer Service can check MyFMU, phone, kiosk, cash barcode, check, drop box and mailed payment issues.
Online portal or app issue
MyFMU page or Customer Service.
MyFMU replaced the prior platform and supports usage, payment history, bill comparison and mobile access.
Water quality, taste, odor, color, pressure
707-437-5390.
Use Water Division for quality and active water-condition issues; use annual CCR for yearly monitoring results.
Water service / reported leak evaluation
Water Division / Water Treatment and Distribution route.
Water Distribution installs meters and evaluates reported leaks; billing adjustments still route through customer service/form process.
Rate questions about 2026-2030 water rates
Public Works rate page / 707-428-7485 for Prop 218 water rates.
Water rate increases were adopted through Resolution No. 2025-217 and took effect January 1, 2026.
Low-income senior/disabled refund
Utility Billing at 707-428-7346.
Applications are mailed with January bills and deadlines apply.

Bill Pay, MyFMU Login, Phone Pay, Cash Barcode, Kiosk, Mail and Drop Box

MyFMU

MyFMU by SilverBlaze is the online customer portal for paying, viewing usage and managing account details.

Phone pay

Call 866-207-6045 with account number and payment method.

Cash options

Use printed bill barcode at Fairfield 7-Eleven/CVS or the City Hall JACK kiosk.

Drop box

Use the blue water-payment drop box for checks, not cash. Before 7 AM posts same business day.

Open MyFMU from the City page

Start from Fairfield’s MyFMU page or go directly to utilities.fairfield.ca.gov. Confirm the portal is for Fairfield Municipal Utilities before entering payment details.

Register after service is established

The City says once service is established and you receive your account number, you can set up an online account, enroll in auto pay and request paperless billing.

Choose a payment method based on posting speed

Kiosk payments post immediately. Drop-box payments placed before 7 AM post the same business day. Mail and retail cash payments may not be best when service is already at risk.

Avoid duplicate autopay payments

The City warns that if AutoPay is already set up and the payment date is within 5 days, do not make a one-time manual payment because AutoPay will automatically deduct the balance due.

Payment method
Official detail
Best for
Watch out
MyFMU online portal
24/7 account access, balances, payments, update information, usage monitoring and bill comparison.
Customers who want account history, usage insights, paperless billing or auto pay.
Credit/debit card autopay fee is $2.95 per payment; ACH, check and cash do not incur that fee.
MyFMU mobile app
City says the MyFMU Mobile app lets customers view and pay utility bills from smartphones/tablets.
Mobile payment and account access.
Download through official Apple Store or Google Play links from the City page.
Pay by phone
Call 866-207-6045 with payment method and account number.
Customers who do not want to log in online.
Keep confirmation and call 707-428-7346 if a delinquent/shutoff date is involved.
Cash at Fairfield 7-Eleven or CVS
Requires physical bill with printed barcode.
Cash customers near a participating store.
7-Eleven/CVS convenience fee is added.
Cash at City Hall JACK kiosk
Outside City Hall, open 24/7; no convenience fee listed for cash at JACK.
Cash payment without retail convenience fee.
Use the correct account/bill details and save receipt.
Credit card at JACK kiosk
City says credit-card payments can be made at the kiosk outside City Hall.
Immediate posting at City Hall kiosk.
Check fee shown before submitting.
Mail check
Mail using envelope to City of Fairfield, 1000 Webster Street, Fairfield, CA 94533.
Routine payments with time before delinquent date.
Mail is not instant and should not be used close to shutoff.
Blue water-payment drop box
Located along curb in center of Webster Street parking lot in front of Police building.
After-hours check or money-order drop-off.
No cash; payments before 7 AM post same business day.
Returned payment replacement
$25 returned payment fee applies if check or automatic payment is returned.
Customers replacing a failed payment.
Returned payment must be replaced by cash, cashier’s check, money order or credit card.
Payment-posting script: “My Fairfield Municipal Utilities account is [account number] at [service address]. I paid [amount] on [date/time] by [MyFMU / phone / JACK kiosk / 7-Eleven / CVS / mail / drop box]. Confirmation or check number is [number]. Has it posted, and is anything still due before the delinquent fee or shutoff date?”

Official payment links:

Water & Sewer Services MyFMU Portal Payment Options Pay by Phone

Past Due Notice, Delinquent Fee, Shutoff Notice and Returned Payment

Past due rule

  • Utility bill is due upon receipt.
  • It becomes past due if not paid by the delinquent date on the bill.
  • A 10% delinquent fee is added to the account if it becomes past due.
  • If unpaid, an additional 0.5% per month processing fee can be charged.
  • A shutoff notice is mailed with a shutoff date.

If shutoff is near

  • Use MyFMU, phone pay or JACK kiosk instead of mail.
  • Call 707-428-7346 after payment if timing is urgent.
  • Save receipt and confirmation number.
  • Ask whether processing fee, delinquent fee or shutoff fee remains.
  • Do not assume retail or mailed payments stop service interruption instantly.

Returned payment

  • Returned check or automatic payment adds a $25 fee.
  • Replacement must be cash, cashier’s check, money order or credit card.
  • Call if the returned payment caused delinquency.
  • Update MyFMU payment method before next autopay date.
  • Do not wait for another automatic retry unless the City confirms it.
Fee / event
Official detail
Practical action
Delinquent fee
10% of balance due if account becomes past due.
Pay before delinquent date shown on bill.
Additional processing fee
0.5% per month if bill remains unpaid.
Call Customer Service if balance is aging.
Shutoff notice
Notice is mailed indicating shutoff date.
Use fast posting method and call after paying.
Service interruption for nonpayment
Additional $25 processing fee added for non-payment.
Ask total required to restore or keep service.
After-hours request
Nonpayment processing fee listed at $35 if request occurs after working hours.
Resolve during business hours when possible.
Returned payment
$25 returned payment fee.
Replace with cash, cashier’s check, money order or credit card.
Past-due script: “My Fairfield water account is [account number]. I received a past-due or shutoff notice dated [date]. I can pay [amount] by [method/date]. What exact amount is required to prevent interruption, and will the payment method post before the shutoff date?”

Start Service, Move-In, Move-Out and Account Setup

Start utility service

Use the City’s Start Utility Service application route from the Water and Sewer Services page. Once your account is established and you receive your account number, create your MyFMU login.

Moving out

Do not assume escrow, tenant move-out or landlord notice automatically ends responsibility. Contact Customer Service for final-bill steps and keep confirmation.

Landlord / tenant

Confirm who is responsible for water/sewer payment before lease signing, especially if the property uses owner billing or a submetering arrangement.

Scenario
What to ask
Documents / proof to keep
New owner
How do I start service and when will first bill/account number arrive?
Closing statement, ID, service address, start confirmation.
Tenant moving in
Can tenant open account or does owner keep account?
Lease, ID, move-in date, account confirmation.
Seller moving out
How do I request final read / final bill and stop responsibility?
Stop request, forwarding address, final payment receipt.
Property manager
Can multiple properties/accounts be managed in MyFMU?
Owner authorization, account numbers, billing address.
Autopay after move
Does old account autopay need cancellation?
Autopay cancellation proof and final bill.
Start Utility Service Call Customer Service Register MyFMU

2026 Fairfield Water Rates, Regional Comparison and Low-Income Refund Help

Effective date

Updated water rates took effect January 1, 2026 after City Council approval in November 2025.

Five-year plan

The City described about 8% annual increases over five years to support system reliability and infrastructure needs.

Typical impact

The City estimated average single-family bill increases of about $5-$7 per month each year compared with the prior year.

Refund help

The City offers a Low-Income Senior/Disabled Water Refund for customers who qualify.

Rate topic
Official detail
What customers should do
Rate approval
City Council approved water rate adjustments on November 4, 2025 following Proposition 218 process.
Use the adopted 2026-2030 water rates table for exact current rates.
Effective date
Updated rate structure took effect January 1, 2026.
Compare bills before and after January 2026 carefully.
Reason for increase
City cites high-priority infrastructure upgrades, rising treatment and operational costs, and long-term reliability.
Review PUMP and rate study resources if you need background.
Water system scale
Fairfield’s water system includes more than 375 miles of pipelines, 12 storage tanks, 15 pump stations and two treatment plants.
Understand that rate increases fund infrastructure, not sewer charges.
Sewer charges
The Prop 218 rate proposal says sewer charges are separate and not affected by the water-rate proposal.
Do not confuse sewer charges with 2026 water-rate change.
Water rate zone
Residential zones have specific volume charges by location, calculated per HCF.
Find your zone by dividing Water Use Charge by Water Use HCF on the bill.
HCF
Bill uses HCF / hundred cubic feet for usage-rate logic.
Use bill’s Water Use HCF and Water Use Charge to confirm rate zone.
Low-income senior/disabled refund
Applications are mailed out with January water bills and deadlines apply.
Call Utility Billing at 707-428-7346 if you think you qualify or did not receive form.

Rate-zone shortcut: look at “Water Use Charge” and “Water Use HCF” on the bill. Divide the charge by HCF to estimate the per-HCF rate shown on your bill, then compare that number with the adopted Fairfield water-rate table.

2026-2030 Water Rates Rate Approval News Rate Questions 707-428-7485 Refund Help 707-428-7346

High Bill, Leak Adjustment, Usage Monitoring and Meter Clues

Use MyFMU usage tools

MyFMU includes usage monitoring, detailed consumption insights and bill comparison features that can help identify unusual use.

Check before filing

Look for toilets, irrigation, water softener, hose bibs, pool fill, broken lateral line, crawlspace/basement leak or meter movement when fixtures are off.

Document repairs

Save plumber invoice, parts receipt, photos, repair date, meter readings and MyFMU usage screenshots before requesting an adjustment.

High-bill check
What to inspect
What to ask Customer Service
Running toilet
Dye-test tank, listen for refill, inspect flapper/fill valve.
Does usage history show continuous flow?
Irrigation / outdoor watering
Controller schedule, broken heads, valve leak, overspray.
Did usage spike on watering days?
Service-line leak
Wet yard, soft soil, meter movement when all fixtures are off.
Is leak on customer side or utility side?
Meter reading issue
Compare meter, bill consumption and MyFMU history.
Can the account be reviewed for a possible read or billing issue?
Autopay duplicate
Manual payment within 5 days of AutoPay date.
Did a one-time payment and AutoPay both process?
Returned payment
Bank/card failure, automatic payment return, expired card.
Was a $25 returned-payment fee added?
Leak adjustment
Repair proof, photos, dates and usage before/after.
Which leak-adjustment form or evidence does Fairfield require?
High-bill script: “My Fairfield water account is [account number]. My bill changed from [old amount/HCF] to [new amount/HCF]. I reviewed MyFMU usage, checked toilets, irrigation, hose bibs, meter movement and service line. The repair was completed on [date], and I have [plumber receipt/photos/parts receipt]. Can you review whether a leak adjustment applies?”
Leak Adjustment MyFMU Usage Call Billing Water Quality / Division

Water Quality, Reports, Water Treatment and Conservation

Annual reports

Fairfield publishes Water Quality Reports for each calendar year, including 2025 reports in English, Spanish and Tagalog.

Two treatment plants

Fairfield is served by Waterman Water Treatment Plant and North Bay Regional Water Treatment Plant.

24/7 treatment

The City says the two plants operate 24 hours a day, 365 days a year so quality water flows through taps.

Water topic
Official detail
User action
Water-quality question
Call 707-437-5390.
Report address, tap affected, hot/cold water, color, odor, pressure and start time.
Annual CCR
Reports show monitoring results for each calendar year and explain sources, contents and standards.
Open latest 2025 report before buying filters or asking contaminant questions.
Language options
2025 Water Quality Report is listed in English, Spanish and Tagalog.
Share the correct version with tenants, household members or employees.
Waterman Water Treatment Plant
2900 Vista Grande.
Know facility name for local source/treatment context.
North Bay Regional Water Treatment Plant
5110 Waterworks Lane.
Know facility name for local source/treatment context.
Urban Water Management Plan
City must update UWMP every five years and submit to Department of Water Resources.
Use UWMP for long-term supply, demand, infrastructure and shortage planning context.
Water Shortage Contingency Plan
Plan describes conservation actions during supply shortage.
Check before assuming outdoor watering or drought rules.
Lead and copper questions
Water Division page links Lead and Copper Rule resources.
Use official lead/copper information for property and plumbing concerns.
Water Reports & Plans Water Treatment Lead & Copper Rule Water Quality 707-437-5390

Sewer, Trash, Stormwater and Other Charges That Can Confuse a Water Bill

Sewer is separate

The 2026 water-rate increase page explains that sewer charges are separate from the water-rate proposal.

Trash is not MyFMU water

Fairfield solid waste and recycling services have separate rules, rates and hauler information.

Stormwater questions

Stormwater quality and public-works drainage concerns are separate from paying a water/sewer bill.

Line item / issue
Why it may confuse customers
What to do
Water use charge
Varies by HCF and rate zone.
Compare Water Use Charge and Water Use HCF.
Sewer charge
Separate from the 2026 water-rate proposal.
Ask Customer Service to explain sewer line item separately.
Returned payment fee
Can appear after failed automatic/check payment.
Replace payment with accepted method and update payment info.
Delinquent fee
10% fee can make bill jump even if water usage did not.
Check bill due/delinquent dates before comparing usage.
Retail convenience fee
Added by 7-Eleven/CVS cash payment route.
Use City Hall JACK kiosk if cash fee avoidance matters.
Credit/debit autopay fee
$2.95 per payment charged by processor.
Use ACH, cash or check if you want to avoid that fee.

Google Map: Fairfield City Hall and Water Payment Kiosk

Use this map for City of Fairfield, 1000 Webster Street, Fairfield, CA 94533. The JACK payment kiosk is outside City Hall. The blue water-payment drop box is along the curb in the Webster Street parking lot in front of the Police building.

Location / route
Address / phone
Use for
City of Fairfield / billing address
1000 Webster Street, Fairfield, CA 94533
Mail payments, City Hall payment kiosk, customer-service routing and in-person context.
Customer Service
707-428-7346
Water service, billing, account setup, delinquent notice, payment posting and refund help.
Pay by phone
866-207-6045
Phone payment with account number and payment method.
JACK payment kiosk
Outside City Hall
24/7 cash or credit-card payment; payment posts immediately.
Blue water-payment drop box
Webster Street parking lot in front of Police building
Check/money-order drop-off; no cash; before 7 AM posts same business day.
Water Quality / Water Division
707-437-5390
Water quality, taste, odor, pressure or water-condition concerns.
Waterman Water Treatment Plant
2900 Vista Grande
One of Fairfield’s water treatment plants.
North Bay Regional Water Treatment Plant
5110 Waterworks Lane
One of Fairfield’s water treatment plants.

Fairfield Water Utilities FAQ

What is the Fairfield CA water bill phone number?

For Fairfield Municipal Utilities billing and customer service, call 707-428-7346. For pay-by-phone, call 866-207-6045 with your account number and payment method.

Where do I pay my Fairfield water bill online?

Use the official MyFMU by SilverBlaze portal at utilities.fairfield.ca.gov. You can also start from the City of Fairfield Water and Sewer Services page and click Pay Bill Online.

What is MyFMU by SilverBlaze?

MyFMU is Fairfield Municipal Utilities’ customer portal. It offers 24/7 account access, bill payment, usage monitoring, payment history, bill comparison, account updates and mobile access.

Does Fairfield charge a credit card fee for water payments?

For MyFMU autopay using a credit or debit card, the City says the processor charges $2.95 per payment. ACH, check and cash payments do not incur that fee.

How do I pay my Fairfield water bill with cash?

Take the physical bill with printed barcode to Fairfield 7-Eleven stores, CVS or the City Hall JACK kiosk. 7-Eleven and CVS add a convenience fee, while the City says no convenience fee is added for cash at the City Hall kiosk.

Where is the Fairfield water payment drop box?

The blue drop box marked for water payments is along the curb in the center of the Webster Street parking lot in front of the Police building. Payments placed before 7 AM post the same business day. Do not place cash in the drop box.

What happens if my Fairfield water bill is past due?

The bill is due upon receipt and becomes past due if not paid by the delinquent date. A 10% delinquent fee is added, and if it remains unpaid, an additional 0.5% per month processing fee can be charged and a shutoff notice mailed.

What is Fairfield’s returned payment fee?

If a check or automatic payment is returned, a $25 fee is added. The returned payment must be replaced by cash, cashier’s check, money order or credit card.

When did Fairfield’s 2026 water rates take effect?

Fairfield City Council approved water rate adjustments in November 2025, and the updated rate structure took effect January 1, 2026. The City describes about 8% annual increases over five years, with typical single-family bill impacts around $5 to $7 per month each year compared with the prior year.

Where can I find Fairfield water quality reports?

Use the City’s Water Reports & Plans page. Fairfield lists 2025 Water Quality Reports in English, Spanish and Tagalog, plus prior-year reports and Urban Water Management Plan resources.

30-Second Fairfield Water Checklist

Pay/login: use MyFMU at utilities.fairfield.ca.gov for online payment, account access, usage monitoring, bill comparison, paperless billing and autopay.

Call: Customer Service 707-428-7346; Pay-by-Phone 866-207-6045; Water Quality 707-437-5390.

Office/payment location: City of Fairfield, 1000 Webster Street, Fairfield, CA 94533; JACK kiosk outside City Hall is open 24/7.

Drop box: use the blue water-payment drop box in the Webster Street lot in front of the Police building; no cash; before 7 AM posts same business day.

High bill: check MyFMU usage, water HCF, rate zone, toilets, irrigation, service-line leaks, returned-payment fees, delinquent fees and sewer line items before filing an adjustment request.

Water Bill Payment, Leak & Utility Help Toolkit

Use this free helper to find the official water bill portal, avoid unsafe payment pages, handle late bills, troubleshoot high usage, prepare start/stop service documents, and contact the utility office with the right details.

Find official payment pages safely
Prepare before late fees or shutoff
Check high bill and leak causes
Useful on every city water guide

Official Water Bill Portal Finder

Enter your city, state, and utility name. This tool creates safe search shortcuts for the official bill pay portal, customer service page, outage line, and start/stop service page.

Safety tip: Use the official city, county, or utility website when paying a water bill. Do not enter card or bank details on a page that only looks like a payment portal but does not clearly identify the official utility.

Safe Water Bill Payment Checklist

Before paying online, use this checklist to reduce the risk of wrong payment, duplicate payment, missed receipt, or third-party confusion.

Important: Some official utilities use third-party processors. That can be normal, but the payment processor should be linked from the official utility website and show clear fee/payment details.

Late Bill, Shutoff Notice & Reconnection Action Plan

Select your situation and get practical next steps. This helps users act quickly without guessing.

Do not wait: If you received a shutoff notice, online payment alone may not stop disconnection. Call the utility billing office and save your confirmation number.

High Water Bill & Leak Troubleshooter

A high bill can be caused by leaks, irrigation, estimated readings, seasonal use, or account/meter issues. Choose the closest problem below.

Quick leak test Turn off all water, then check whether the meter still moves.
Toilet check Put food coloring in tank. If color reaches bowl without flushing, there may be a leak.
Ask utility Request usage history, meter reread, leak adjustment policy, and payment arrangement options.

Start, Stop or Transfer Water Service Checklist

Moving in or out? Choose your situation and prepare the details most utilities commonly request.

Your preparation checklist

Move-out tip: Ask for a final meter read, final bill date, refund/deposit process, and confirmation number when stopping service.

Payment Assistance & Arrangement Finder

If you cannot pay the full water bill, this guide helps you decide what to ask before disconnection or extra fees.

Helpful document list: Keep your account number, photo ID, service address, bill copy, shutoff notice, income proof if needed, repair receipt if leak-related, and payment confirmation numbers.

Water Department Call Script Generator

Generate a clear call or email script before contacting the utility billing office.

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