What a WSSC Water bill costs, and why
90-day bill at 145 gallons a day, our arithmetic
A WSSC Water bill at 145 gallons a day comes to about $319.19 per 90 days on FY27 rates, by our arithmetic, and about three-quarters of that moves with your gallons.
Updated
Every number in this section
- $17.90WSSC Water rate tiersper 1,000 gallons in Tier 1, water plus sewer
- $319.19Quarterly bill by gallons a day90 days at 145 gallons a day, our arithmetic
- $73.38Fixed fees on the billfixed part of a 90-day bill, 5/8-inch meter, our arithmetic
- 5.0%Rate increases by yearaverage FY27 rate rise, effective July 1, 2026
- 3×Why the bill jumpeddaily use against the same season last year, the adjustment line
- $247Help payingmost a year in CAP credit, on fees including Bay fee
- $467.24What a running toilet costsadded per 90-day bill by 200 gallons a day, our arithmetic
- $433.67Summer watering costone hour a week, 13 weeks, landing on one bill
This desk reads the bill. It is independent of the utility and is not a plumbing contractor. The numbers cover homes on WSSC Water in Prince George’s and Montgomery counties, from Fort Washington to Gaithersburg.
Start with your gallons a day
Take the gallons on your bill and divide by the days in the period. Then pick a page.
- Bill by gallons a day: $137.82 at 40 gallons a day, $1,212.18 at 500.
- Rate tiers: $17.90 per 1,000 gallons at the bottom, $30.52 at the top.
- Fixed fees: $73.38 per 90 days before any water runs.
What changed, and what went wrong?
- Rate increases: 5.0% in FY27, after 9.5% and 8.5%.
- Why a bill jumped: the adjustment line is 3× the same season a year earlier.
- What a leak costs: $57.46 per 90-day bill for a worn flapper, $467.24 for a toilet running 200 gallons a day.
- Summer watering: $433.67 for one sprinkler hour a week over 13 weeks.
Trouble paying?
Help paying lists the Customer Assistance Program: up to $247 a year in credits and up to $9,000 a year in leak repair for those who qualify.
Dollar totals on these pages are our arithmetic from published rates. How we check explains the method, and all the numbers sit on one page.