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Your bill / Fixed fees

The charges you pay before any water runs

$73.38

fixed part of a 90-day bill, 5/8-inch meter, our arithmetic

The WSSC Water account maintenance fee is $34.58 a quarter on a 5/8-inch to 1-inch meter in FY27, and two other charges lift the fixed part to about $73.38.

By the Your Water Numbers desk, not WSSC Water · Updated · How we check

Look up your number: the fixed lines on your bill

ChargeFY27 quarterFY26 quarterNote
Account Maintenance, 5/8"–1"$34.58$32.94About $0.38 a day
Infrastructure Investment, 5/8"$23.80$22.67Larger meters pay more
Bay RestorationAbout $15About $15State fee, collected on the bill
All three$73.38$70.61$58.38 and $55.61 before the Bay fee
Account Maintenance, 6"$551.28Not readShows how far size moves it

Source: Published fee schedule; totals are our arithmetic · FY27, read Nov. 2, 2026

Rows of townhouses and parked cars on a street in the Kentlands-Lakelands area of Gaithersburg
Townhouses in the WSSC Water area, where a small meter sets the fee line.

Are these charges tied to how much water you use?

No. They are per quarter, not per gallon, so saving water does not touch them. Only the gallons line moves.

Fixed money looms larger the less you use. It is 53.2% of the bill at 40 gallons a day, 36.0% at 81, 11.1% at 300 and 6.1% at 500 (our arithmetic).

At 145 gallons a day, fixed charges are 23.0% of a $319.19 bill
Fixed charges: $73.38Usage: $245.81

Source: Our arithmetic, fixed against usage · 90-day bill, FY27

Reading this: Your own share depends on your row in the gallons-a-day table. Divide $73.38 by that total.

What does each fee pay for?

The Infrastructure Investment Fee has the clearest published purpose: it funds a portion of debt service on water and sewer pipe reconstruction. You can see the scale of that work on how old the mains are.

That fee does not make your side of the pipe the utility’s job. Your own line from the property line into the house stays yours.

The Bay fee is a state charge with two ways of saying it

WSSC Water says about $15 per 90-day bill, $0.1643 a day or $4.92 per 30-day bill. Maryland’s environment department says a flat $5.00 a month for homes, since July 1, 2012.

These agree. Both come to about $60 a year (our arithmetic). A hardship exemption exists, and the WSSC Water page above is where it is described.

How much did fixed charges rise in FY27?

The two utility fees rose $2.77 a quarter together, about 5.0% (our arithmetic).

Both utility fees rose about 5.0% from FY26 to FY27
AMF FY26AMF FY27IIF FY26IIF FY27

Source: Quarterly fee schedule · quarterly, small meter

At 145 gallons a day, that is $2.77 of the $14.44 total rise. Usage accounts for the other $11.67 (our arithmetic).

What if your fee line shows a different figure?

Check three things: your billing period, your meter size and the fiscal year of the bill.

  • A monthly bill should show roughly a third of the quarterly figure.
  • A larger meter pays more. The 6-inch Account Maintenance Fee is $551.28 a quarter.
  • An older bill may show the FY26 figures of $32.94 and $22.67.

If the line still looks wrong, ask WSSC Water using the customer service details on your bill.

Can any of this be reduced?

Yes, for households that qualify. The Customer Assistance Program offers a credit of up to $247 a year on fees, including the Bay fee. Check the current page for the figure.

Four quarters of fixed charges come to $293.52 (our arithmetic), so the credit covers most of them at its maximum.

What to do with this number

  • Check the fee lines on your latest bill against the table
  • Subtract $73.38 from your total to see what your water use actually cost
  • If money is tight, read the help paying terms
  • Use the rate tiers to see what is left to save

Questions on this page

Do I pay these fees if the house uses no water for a quarter?

They are listed per quarter, not per gallon, so expect them. The published daily figures also point that way, at about $0.38 a day for the Account Maintenance Fee.

Does the Bay fee go to the water utility?

It is a state fee that WSSC Water collects on the bill. It appears as its own charge.

What is my Infrastructure Investment Fee on a bigger meter?

We only list the 5/8-inch figure, $23.80. Larger meters pay more, so read your own line or the fee page.

Where each number comes from

FigureWhat it isSourceAs of
$34.58, $23.80, $551.28, $0.38, $32.94, $22.67FY27 and FY26 fees, daily figureWSSC Water fee scheduleFY27
About $15, $0.1643, $4.92Bay fee on a billWSSC Water Bay fee exemption pagevia search index, Nov. 2026
$5.00 a monthBay fee for homesBay Restoration Fund FAQ, Maryland MDEsince July 1, 2012
$247CAP credit, yearly maximumWSSC Water CAP pagethis fiscal year
$73.38, shares, $293.52Totals worked from the feesOur arithmetic from WSSC ratesNovember 2026