Prince George’s + Montgomery counties, Maryland · Rates from July 1, 2026
What a WSSC Water bill comes to, by gallons a day
$319.19
a 90-day bill at 145 gallons a day, our arithmetic
Find your daily gallons on your bill, then read across. Each slice of use is priced at its own tier, so the last gallons cost the most.
Independent of WSSC Water. Updated
Look up your number
| Gallons a day | 90-day bill | Note |
|---|---|---|
| 60 gal/day | $170.04 | One or two careful users |
| 81 gal/day | $203.87 | Top of Tier 1 |
| 100 gal/day | $238.11 | |
| 120 gal/day | $274.14 | |
| 145 gal/day | $319.19 | WSSC Water’s budget-paper family of 3 |
| 166 gal/day | $357.02 | Top of Tier 2 |
| 200 gal/day | $431.17 | Tier 3 rate on the last slice |
| 276 gal/day | $596.90 | Top of Tier 3 |
| 400 gal/day | $937.50 | Tier 4: worth a leak check |
Our arithmetic from WSSC Water’s rates from July 1, 2026, 5/8-inch meter, water, sewer, fixed fees and about $15 Bay Restoration Fee. The full table and how it’s worked out.
Your bill
What you pay and why it moved
- $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
Your pipes
How old, how often, whose job
- 644Main breaks by winterbreaks and leaks in January 2025, the peak of that winter
- 42%How old the mains areof water mains more than 50 years old in 2025
- Property lineWho owns which pipewhere WSSC Water's responsibility ends and yours begins
- 97.3%Lead service line inventoryof inventory confirmed non-lead at April 30, 2025
Your water
What is in it, plant by plant
- 154 mg/LHardness by plantPotomac plant average hardness, 2025; Patuxent plant averages 70 mg/L
- About 75%Which plant serves youof customers served by the Potomac plant
- Below 2 ppbLead in tap water90th-percentile lead, 69 sites; a system figure, not your tap
- About 1.1 pptPFAS numbersPotomac PFOS running annual average, 2025; EPA's limit is 4.0 ppt
Fort Washington, Oxon Hill, Bowie, Laurel, College Park, Silver Spring, Rockville, Bethesda or Gaithersburg? Rates are the same across the service area. Hardness isn’t: see which plant likely serves your town.