Fort Belvoir, VA
Lead detected, under the action levels
Latest 90th-percentile lead: 0.17 ppb (monitoring period 2022-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Fort Belvoir at a glance
Fort Belvoir serves about 39,303 people through 6,500 service connections, which makes it a large system under EPA's size classes. It is privately owned and draws surface water, in Fairfax County, Virginia. EPA system ID: VA6059450. Ask the utility on your bill for your address in their service line inventory.
Every lead result on file
Against the period ending 2021 (0.47 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Fort Belvoir is 0.5 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 0.17 ppb |
| 2021 | 0.47 ppb |
| 2019 | 0 (not detected) |
| 2016 | 0.5 ppb |
Against other Virginia systems
Of the 996 Virginia systems with a lead result, the median latest reading is 0 ppb; 3 are over 15 ppb right now and 59 have gone over at some point. Fort Belvoir's 0.17 ppb sits at the 50th percentile in Virginia and the 41st nationally (higher means more lead).
Neighbouring systems
4 other systems share Fairfax County; 4 of them have a higher latest lead result than Fort Belvoir. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Fairfax County Water Authority | 1,121,613 | 1.2 ppb |
| Vienna, Town Of | 27,134 | 0.63 ppb |
| Herndon, Town Of | 24,601 | 0.39 ppb |
| Tauxemont | 250 | 1 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Fort Belvoir, VA may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Fort Belvoir whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. What a 90th-percentile result does and does not tell you: how to read a lead result. Systems that went over once often dip back under; here is what that means.